JP2006104933A - Communication device for construction machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable communication when an engine is turned off and to restrain unnecessary power consumption even in an communication device having opportunities to transmit information from a moving body. <P>SOLUTION: Communication is performed between the moving body 31 and a terminal unit 11. The communication device 56 mounted on the moving body 31 can perform communication with the terminal unit 11 when electrical connection with a power source 63 is turned on. When an engine key switch signal S1 is turned off, the electrical connection between the power source 63 and the communication device 56 is intermittently turned on and off (Duty ratio D=(τ/T)×100%). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a communication device for a construction machine that performs communication between the construction machine and a terminal device.

  Data such as a moving position, a service meter, a fuel amount, and an engine speed for a moving body, particularly a construction machine, is information necessary for managing the vehicle.

  As a method for obtaining information on these construction machines, conventionally, maintenance personnel have gone to the construction machine and connected to the construction machine by downloading a history data written in the memory inside the construction machine. It was. Then, data collected from a plurality of construction machines is stored and stored in a memory of a computer of the management station, thereby managing a plurality of construction machines.

  However, since information is collected manually, the more the number of construction machines is and the more remote it is, the more complicated the information collection becomes and the efficiency of information collection is greatly impaired.

  Therefore, as can be seen in the following Patent Document 1, attempts have been made to automatically acquire information on construction machines using communication means without relying on human hands.

  The invention of Patent Document 1 connects a management unit and a construction machine so as to be capable of two-way communication using communication means, transmits a data request from the management unit, extracts data by the construction machine, and sends it back to the management unit. . In this way, information on the construction machine side is collected in the management section that requested it. Therefore, construction machine information can be obtained at the terminal on the management unit side.

  However, in the case of Patent Document 1, the construction machine has a long time zone during which the engine is not operating (that is, a time zone during which the power is turned off).

  FIG. 21 shows the inside of the vehicle body of the construction machine. In FIG. 21, if the battery 63 (rated voltage 24V), which is a power source, and the communication terminal 56 are always electrically connected even when the engine is turned off, the battery 63 is a generator because the engine is not operated. Not charged by (alternator). For this reason, the battery 63 is rapidly discharged. On the other hand, if the electrical connection between the battery 63 and the communication terminal 56 is always turned off while the engine is turned off, communication with the terminal becomes impossible. For this reason, when there is a request for mobile unit information from the terminal side when the engine is off, it cannot respond to the request.

In Patent Document 2 below, when a signal requesting information to the construction machine is received from a terminal at a remote location, the controller inside the construction machine is activated in response to the received signal, and is ready for download. An invention is described in which the activation is stopped after a predetermined time has elapsed since the signal was received. However, according to the present invention, construction machine information cannot be sent from the construction machine side to the remote place terminal in a situation where the remote place terminal is not transmitting the request signal. In other words, when construction machines themselves send information, they cannot cope.
JP-A-6-330539 JP 10-68336 A

  It is possible to communicate with the terminal and respond to the request from the terminal while the engine is off, even for a moving object such as a construction machine where the engine is not operating for a long time. It is desirable to be able to reduce power consumption. At the same time, it is necessary that the communication device provided in the construction machine and the terminal at the remote location can communicate with each other with good timing.

  Therefore, the first, second, third, and sixth inventions of the present application, in a communication device that may transmit information from the construction machine side, suppress unnecessary power consumption while the engine is stopped, and between the terminal and the engine while the engine is stopped. The solution is to ensure communication.

  In addition, even if the engine is not operating for a long time, it is possible to communicate with the terminal while the engine is off and to respond to a request from the terminal. It is desirable to be able to reduce consumption.

  Accordingly, the fourth and fifth inventions of the present application have a solution to further suppress wasteful power consumption while the engine is stopped in a communication device that may transmit information itself from the construction machine side.

In Patent Document 1, an error code is automatically transmitted from the construction machine side to the terminal of the management unit when an important failure occurs.
Here, it is possible to recognize an abnormal situation (for example, theft) that has occurred on a construction machine that cannot be managed and monitored at all times by the terminal on the management unit side, It is hoped that it will be accurately grasped.

  However, according to the invention of Patent Document 1, such a request cannot be dealt with.

  For example, assume that information on the position of a construction machine is acquired.

  According to the invention of Patent Document 1, only the position of the construction machine when the management unit requests the construction machine can be acquired on the management unit side. That is, the sequential position of the construction machine cannot be acquired on the management unit side unless requested by the management unit. For this reason, when the construction machine is illegally moved (when stolen or the like) when the position information is not requested from the management unit, it is not possible to appropriately cope with this. Moreover, it is not possible to cope with an abnormal situation where the construction machine is illegally moved by simply transmitting the error code automatically from the construction machine side.

  Thus, according to the invention of Patent Document 1, it is impossible to recognize an abnormal situation such as theft that has occurred in a construction machine that cannot be managed and monitored at all times. Moreover, it is impossible to accurately grasp the operating state and the resting state of a construction machine that cannot be constantly managed and monitored.

  Therefore, the seventh, eighth, eleventh, twelfth and thirteenth inventions of the present application recognize an abnormal situation (for example, theft) that has occurred in a construction machine that cannot be constantly managed and monitored on the communication terminal side, The problem to be solved is to be able to grasp it accurately.

  Recognizing the state of the battery voltage of the communication device provided in the construction machine is useful for giving appropriate work instructions for maintenance and inspection such as charging and replacement of the battery. Further, if the communication of the construction machine is limited according to the state of the battery voltage, the battery life can be extended.

  Accordingly, the ninth aspect of the present invention is to solve the problem that it is possible to recognize that it is time for maintenance and inspection such as charging and replacing the battery of the communication device provided in the construction machine, and that it is possible to perform an appropriate work instruction. .

When an error code is automatically sent from the construction machine to the communication terminal, if the previously sent error code and the currently entered error code have the same content, the same information will be communicated multiple times. .

  Accordingly, the tenth aspect of the present invention provides a plurality of pieces of the same information by automatically transmitting the currently input error code only when the previously automatically transmitted error code and the currently input error code have different contents. The solution is to prevent automatic transmission.

The first invention is
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when electrical connection with a power source is turned on, and a time measuring means for measuring time are provided in the construction machine,
When the engine of the construction machine is stopped, the electrical connection between the power source and the communication device is performed each time the time measured by the time measuring means coincides with the flight time of the communication satellite. The construction machine is provided with a means for turning on.

  The present invention will be described with reference to FIG.

  FIG. 13A shows the positional relationship between the communication satellite 9 and the mobile work machine 31. A communication path (wireless communication circuit 5) between the communication satellite 9 and the mobile work machine 31 includes communication obstacles 123 such as mountains and buildings.

  When the altitude of the communication satellite 9 is high (when the maximum elevation angle is large), the communication failure due to the obstacle 123 is reduced and the communication state is improved. Therefore, when the altitude of the communication satellite 9 is high, the communication terminal 56 is activated and communication with the communication satellite 9 is performed. A clock is provided inside the communication terminal 56 of the mobile work machine 31, and whether or not the communication terminal 56 is activated by matching the incoming position information 124 received there with the time measured by the clock. Can be determined.

  As described above, according to the above-described embodiment, the communication terminal 56 is activated each time a specific time at which communication between the communication satellite 9 and the mobile work machine 31 is satisfactorily performed. Electric power can be achieved, and communication between the communication satellite 9 and the mobile work machine 31 can be reliably performed.

The second invention is the first invention,
The time of arrival of the communication satellite is received from the outside.

  The present invention will be described with reference to FIG.

  FIG. 13B shows the flight position information of the communication satellite 9 on a certain date. In the communication terminal 56 of the mobile work machine 31, processing for starting the communication terminal 56 is executed at a time when a maximum elevation angle equal to or greater than a predetermined threshold value is obtained from the flying position information 124 shown in FIG.

  As for the flying position information 124, new data is transmitted from the communication satellite 9 to the mobile work machine 31 via the wireless communication circuit 5 at the specific time, for example, every day. As a result, the contents of the flying position information 124 stored in the memory of the mobile work machine 31 are updated.

  As described above, since the flying position information 124 is received from the outside by communication, it is possible to avoid the problem of insufficient memory capacity and memory occupation on the mobile work machine 31 side.

Also, the third invention is
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when electrical connection with a power source is turned on is provided in the construction machine,
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined period, and provided with means for transmitting the machine information of the construction machine when turned on,
The on / off period is a duration of a call signal from the communication satellite to the communication device.

  The present invention will be described with reference to FIG.

  FIG. 8B is a timing chart showing ON / OFF of the power saving operation (sleep function is ON) of the communication terminal 56 while the engine is stopped. FIG. 8C is a call from the communication satellite 9 to the communication terminal 56. The signal transmission state is shown.

  As shown in FIG. 8C, within a certain time (starting cycle) T, there is always a starting time τ, that is, a time during which transmission / reception with the communication satellite 9 is possible. Therefore, by continuously sending a call signal from the communication satellite 9 to the communication terminal 56 for a time equal to or longer than T, the communication terminal 56 and the communication satellite 9 operating in a power-saving operation at the activation cycle T can reliably transmit and receive. .

Also, the fourth invention is
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when an electrical connection with a power source is turned on, and a means for measuring the travel time are provided in the construction machine,
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined period, and provided with means for transmitting the machine information of the construction machine when turned on,
The duty ratio of the on-off cycle is reduced as the operation time of the construction machine becomes shorter.

  The present invention will be described with reference to FIG.

FIG. 8A shows the voltage of the battery 63 and the duty ratio D (= (τ / T) × 100%).
It is a figure which shows the relationship.

  In FIG. 8A, the duty ratio D decreases as the voltage of the battery 63 decreases. However, with the same characteristics as this, the duty ratio D is decreased as the engine operating time is shortened and the start cycle is reduced. By making the length longer, it is possible to suppress a decrease in the voltage of the battery 63.

Also, the fifth invention is
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when the electrical connection with the power source is turned on, and a means for measuring the battery voltage are provided in the construction machine,
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined period, and provided with means for transmitting the machine information of the construction machine when turned on,
The duty ratio of the on / off cycle is reduced as the battery voltage decreases.

  The present invention will be described with reference to FIG.

FIG. 8A shows the voltage of the battery 63 and the duty ratio D (= (τ / T) × 100%).
It is a figure which shows the relationship.

  In FIG. 8A, the duty ratio D decreases as the voltage of the battery 63 decreases. That is, as the voltage of the battery 63 becomes lower, the duty ratio D becomes smaller and the starting cycle becomes longer, so that a decrease in the voltage of the battery 63 can be suppressed.

In addition, the sixth invention
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when an electrical connection with a power source is turned on, and a communication confirmation means for confirming whether communication is being performed after the engine key switch is turned off. In the construction machine,
When the communication confirmation means confirms that the communication is in progress after the engine key switch is turned off, there is provided means for stopping the power supply to the communication device after a predetermined time has elapsed since the communication was completed.

  The present invention will be described with reference to FIG.

  As shown in FIG. 7, even if the engine key switch signal S1 is switched from on to off, if communication is being performed between the communication terminal 56 and the communication satellite 9 as indicated by the arrow c, the arrow d is indicated. The sleep function is turned on from the time when communication is completed.

  As described above, according to the present invention, even if the engine is stopped, if communication is in progress, the communication terminal 56 is kept activated until the end of communication, so that communication can be reliably performed.

The seventh invention
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when an electrical connection with a power source is turned on; a position detecting means for detecting a position of the construction machine; and an engine start state of the construction machine And a sensor for detecting
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined cycle, and provided with a sleep unit that transmits the machine information of the construction machine when turned on,
The position information of the construction machine obtained by the position detecting means is automatically transmitted when the sensor detects that the engine has started during the activation of the sleep means.

  The present invention will be described with reference to FIG.

  As shown in FIG. 26A, when the engine is started at time t1 and a signal indicating that the engine has been started is input to the communication terminal 56, for example, the current position of the mobile work machine is triggered by this signal. Is taken into the electronic mail and transmitted to the communication satellite 9 as an electronic mail. The destination of this e-mail is the server terminal 21. In particular, when the communication terminal 56 is in a sleep state due to a power saving operation, it is transmitted after the engine is started and the forced start is applied.

  Therefore, the administrator can grasp the history of the position every time the engine is started by the mobile work machine 31 on the display screen of the server terminal without performing the request input operation himself, and cannot always manage and monitor it. An abnormal situation occurring in the mobile work machine 31 can be recognized, and the operating state and the resting state of the mobile work machine 31 can be accurately grasped.

The eighth invention
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
The construction machine is provided with a communication device capable of communicating with the terminal device when an electrical connection with a power source is turned on, and a position detection means for detecting the position of the construction machine,
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined cycle, and provided with a sleep unit that transmits the machine information of the construction machine when turned on,
When the position detected by the position detecting means changes during activation of the sleep means, the on / off duty ratio is changed in accordance with the change amount.

  The present invention will be described with reference to FIG.

FIG. 23 shows an embodiment in which the duty ratio is changed in accordance with the relative movement distance with respect to the setting range of the mobile work machine 31.

  FIG. 23A shows how the start cycle T is shortened and the duty ratio D is increased as the construction machine 31 deviates from the set range 117 on the map.

  As shown in FIG. 23A, when the mobile work machine 31 exists at positions A and B within the normal setting range 117, the activation cycle T is the maximum cycle T1.

  However, when the mobile work machine 31 reaches the boundary position C of the normal setting range 117, it is determined that an abnormal situation has occurred by deviating from the normal range (moving outside the permitted area), and detailed information on the movement trajectory is obtained. The activation period T is a period T2 shorter than the maximum period T1 (see FIG. 23D).

  When the mobile work machine 31 reaches a position D further separated from the boundary position of the normal setting range 117 by a predetermined distance L0, the activation cycle T is set to be longer than the cycle T2 in order to obtain more detailed information on the movement trajectory. Further, the cycle T3 becomes shorter.

  As described above, as the mobile work machine 31 moves away from the normal setting range 117, a more detailed movement trajectory is displayed on the display screen of the terminal 11 that is the display destination terminal. For this reason, it is possible to deal with an abnormal situation such as movement outside the permitted area quickly and accurately. In addition, since the duty ratio D for turning on / off the communication terminal 56 is increased as the mobile work machine 31 moves away from the normal setting range 117, the power consumption associated with communication is suppressed and an abnormal situation occurs. Can be monitored accurately.

The ninth invention is
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when an electrical connection with a power source is turned on, and a detection means for detecting information on the construction machine are provided in the construction machine,
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined cycle, and a sleep unit that transmits the machine information of the construction machine when turned on and a unit that measures the battery voltage are provided,
When the battery voltage becomes a predetermined value or less, information on the construction machine is automatically transmitted and the sleep unit is activated.

  The present invention will be described with reference to FIG.

  The sensor group 62 in the mobile work machine 31 detects the voltage value of the battery 63 and sequentially transmits it to the communication controller 54. In the communication controller 54, the detected battery voltage is compared with the set value. And as shown in FIG.12 (b), mobile body information is sent to the communication terminal 56 as transmission data when the detected battery voltage corresponds to a setting value. Then, an e-mail in which moving body information is described is automatically transmitted from the communication terminal 56 via the satellite communication antenna 58.

  As described above, since the mobile unit information is transmitted when the voltage of the battery voltage 63 matches the set value, it is time for maintenance and inspection such as charging and replacing the battery 63 from the display screen on the terminal side. Can be recognized and appropriate work instructions can be given. In addition, a request to turn on the sleep function is transmitted thereafter, so that communication with the mobile work machine 31 is performed only intermittently, and further discharge can be suppressed.

The tenth invention is
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A sensor that detects an abnormality that has occurred in the construction machine, and a terminal unit that receives an abnormality signal detected by the sensor as an error code are provided in the construction machine,
Only when the error code currently input to the terminal means is different from the previous error code based on the abnormality signal detected by the sensor, the currently input error code is automatically transmitted. Features.

  The present invention will be described with reference to FIG.

As shown in FIG. 2, an abnormality occurring in the mobile work machine 31 is detected by a predetermined sensor in the sensor group 62, and a detection signal of this sensor is sequentially input to the communication controller 54 as an error code.
In the communication controller 54, the error code automatically transmitted last time is compared with the currently input error code. Only when the previously automatically transmitted error code is different from the currently input error code, the currently input error code is transmitted to the communication terminal 56 as transmission data. Then, an electronic mail in which moving body information is described is automatically transmitted from the communication terminal 56 via the communication satellite antenna 58. Thereby, it is possible to avoid waste of transmitting the same information a plurality of times.

The eleventh invention
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
Position detection means for detecting the position of the construction machine is provided in the construction machine,
The moving speed of the construction machine is calculated based on the difference value between the position detected last time by the position detecting means and the position detected this time, and the sampling time, and the moving speed obtained as a result of the calculation is a set value. The position information of the construction machine is automatically transmitted when exceeding.

  The present invention will be described with reference to FIG.

In FIG. 10, the detection result of the GPS sensor 57 is input to the communication controller 54 at a constant sampling period. In the communication controller 54, the moving speed V of the mobile work machine 31 is calculated based on the difference value between the position detected last time and the position detected this time and the sampling time. Therefore, the speed V of the mobile work machine 31 is compared with the set value V2 (see FIG. 25), and it is determined whether or not the speed V of the mobile work machine 31 exceeds the set value V2. When the speed V of the mobile work machine 31 exceeds the set value V2, the position information of the mobile work machine 31 at that time is sent to the communication terminal 56 as transmission data. Then, an electronic mail in which position information is described is automatically transmitted from the communication terminal 56 via the satellite communication antenna 58.
As described above, since the position information is transmitted when the speed V of the mobile work machine 31 exceeds the set value V2, it is easy to monitor the movement state of the mobile work machine 31 on the display screen on the terminal side. It can be carried out.

The twelfth invention
The set value of the moving speed is set to be equal to or higher than the maximum speed of the construction machine itself.

  In FIG. 10, if the set value V2 is set to a high speed at which the mobile work machine 31 cannot normally travel, for example, the speed at which the trailer 35 cruises the highway, the speed V of the mobile work machine 31 is set to the set value. When V2 is exceeded, it can be determined by the trailer 35 that the vehicle is being transported.

The thirteenth invention
In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
Position detection means for detecting the position of the construction machine, and start lock means for preventing the engine from starting, are provided in the construction machine,
The position information of the construction machine is automatically transmitted when the engine is started with the engine locked by the start lock means.
The present invention will be described with reference to FIGS.

  Although not shown in FIG. 2, a start lock circuit is incorporated in the vehicle body 50 of the mobile work machine 31. When the start lock setting command is output from the communication controller 54, the relay of the start lock circuit is energized to enter the start lock setting state.

  For example, when the vehicle 31 is loaded on a trailer and moves, the server terminal 21 creates a homepage display screen called “notification screen” shown in FIG. This “notification screen” includes information that the engine has been started outside the fixed time, position information that the vehicle 31 is outside the set range, information that the engine of the vehicle 31 has been started outside the fixed time, and the like. Displayed.

  When the engine is started on the vehicle 31 side, information that “the engine of the vehicle 31 has been started” is automatically transmitted to the server terminal 21 by e-mail, and the display content of the “notification screen” is updated.

  On the other hand, the communication terminal 56 that has been intermittently turned on and off by the sleep function while the engine is stopped turns off the sleep function and performs communication processing.

  As shown in FIG. 26A, when the engine is started at time t1 and a signal indicating that the engine has been started is input to the communication terminal 56, for example, the current position of the mobile work machine is triggered by this signal. Is taken into the electronic mail and transmitted to the communication satellite 9 as an electronic mail. The destination of this e-mail is the server terminal 21. In particular, when the communication terminal 56 is in a sleep state due to a power saving operation, it is transmitted after the engine is started and the forced start is applied.

  Therefore, the administrator can grasp the position information when the engine of the mobile work machine 31 is started in the start-locked state on the display screen of the server terminal without performing the request input operation by himself / herself. It is possible to recognize an abnormal situation that has occurred in the mobile work machine 31 that cannot be managed and monitored, and it is possible to accurately take subsequent actions.

  DESCRIPTION OF EMBODIMENTS Embodiments of a construction machine communication apparatus according to the present invention will be described below with reference to the drawings. In the present embodiment, mobile work machines (machines that travel for work including construction machines such as hydraulic excavators, bulldozers, wheel loaders), mobile work machine transport vehicles (trailers that transport mobile work machines), service cars ( A vehicle that manages vehicles around mobile work machines, such as vehicles that travel to perform maintenance and inspection services), refueling and greasing vehicles, and parts supply vehicles.

  FIG. 1 shows the overall configuration of the embodiment.

  As shown in FIG. 1, in the system according to the present embodiment, a plurality of mobile units 31, 32, 33, 34, and 35 and a plurality of terminals 11, 12, 21, and 22 can communicate with each other to communicate with each other. (Internet 2, network control station 7, dedicated line 3, satellite earth station 8, feeder line 4, communication satellite 9, wireless communication 5).

  That is, construction machines and the like are often rented and the exact operating location is often unknown. They may also be stolen and taken overseas. In the present embodiment, in order to cope with such a problem, a communication network capable of communicating anywhere in the earth is used. In addition, since the several mobile bodies 31-35 form the group in many cases, you may connect between the several mobile bodies 31-35 by a predetermined | prescribed communication means so that communication is possible.

  The plurality of mobile bodies 31 to 35 include mobile work machines, that is, construction machines 31, 32, and 33 such as bulldozers, hydraulic excavators, and cranes, and a service car 34 that performs services such as maintenance and inspection of the mobile work machines 31 to 33. And a mobile work machine transport vehicle that transports these mobile work machines 31 to 33, that is, a trailer 35.

  Terminals 11, 12... Are terminal devices (workstations) connected to the Internet 2. Specifically, a computer such as a personal computer is communicably connected to the Internet via a telephone line. The Internet is a global communication network in which a plurality of LANs (local area networks) are connected to each other by gateways and bridges so as to be able to communicate with each other. The Internet 2 provides services such as WWW (World Wide Web: information retrieval system on the Internet), E-mail (E-mail: “letter” transmitted and received via the Internet), and the like.

  The terminals 11, 12,... Are offices of managers who manage and monitor the plurality of mobile bodies 31 to 35, the inside of the service car 34, the inside of the mobile work machine transport vehicle 35, and the office work of the users of the mobile work machines 31 to 33. Are provided at a store or a sales office of the mobile work machines 31-33.

  The terminal 21 is a server terminal provided corresponding to the terminals 11, 12... And is connected to the Internet 2. The server terminal 21 includes a database, that is, storage means. Therefore, the server terminal 21 provides the contents stored in the database to the terminals 11 and 12 in response to requests from the terminals 11 and 12.

  The terminal 22 is a server terminal provided corresponding to a terminal different from the terminals 11, 12.

  The server terminals 21 and 22 function as mail servers to provide e-mail services, and function as HTTP (Hyper Text Transfer Protocol) servers to provide WWW services. That is, the mail server performs processing for transmitting data transmitted from the request source to the destination specified by the mail address. Further, the HTTP server displays a home page as a file described in HTML (Hyper Text Markup Language) on the display device of the request source terminal in response to a request from the request source. The home page (Internet information screen) is displayed using a WWW browser as data display software. These e-mail data and home page data are stored in the database of the server terminals 21 and 22.

  The network control station 7 is communicably connected to the Internet 2.

  The network control station 7 and the satellite earth station 8 are communicatively connected by a wired dedicated line 3. The dedicated line 3 transmits data at a communication speed of 64 kbps.

  The satellite earth station 8 and the communication satellite 9 are communicatively connected by a wireless feeder line 4. The feeder line 4 transmits data at a communication speed of 56 kbps.

  The communication satellite 9 and the plurality of mobile bodies 31 to 35 are connected by a wireless communication line 5 so as to be freely communicable. Here, satellite communication is used for wireless communication because mobile objects such as construction machines often operate in mountainous areas, forest areas, remote areas, etc., and move in these mountainous areas that cannot be covered by terrestrial communication. This is to ensure communication with the body. In addition, if satellite communications are used, construction machines can be managed and tracked even if they are stolen or taken overseas.

  In the Internet 2, electronic mail is transmitted and received according to a communication protocol called TCP / IP (Transfer Control Protocol / Internet Protocol). In the dedicated line 3, the feeder line 4, and the wireless communication line 5, electronic mail is transmitted and received according to a predetermined communication protocol different from this. Protocol conversion is performed by the network control station 7.

  The positions of the mobile bodies 31 to 35 are measured by GPS (Global Positioning System). 41 and 42 are GPS satellites constituting the GPS. That is, the radio waves transmitted from the GPS satellites 41 and 42 are received by the receivers mounted on the mobile bodies 31 to 35, and the GPS satellites 41 and 42 are based on the time difference between the transmission at the GPS satellites 41 and 42 and the reception at the receiver. The true distance is calculated by calculating the pseudo distance from the receiver to the receiver and adding correction to the pseudo distance, and the two-dimensional position of the receiver (moving bodies 31 to 35) on the earth is measured from the true distance. .

  Each of the terminals 11 and 12 and the server terminals 21 and 22 is provided with a computer input device (mouse, trackball, keyboard, etc.) and a display device composed of a liquid crystal, a CRT or the like. The display screen of this display device will be described later.

  FIG. 2 is a block diagram illustrating the configuration of the moving bodies 31 to 35. FIG. 2 shows the mobile work machine 31 as a representative.

  As shown in FIG. 2, in the vehicle body 50 of the mobile work machine 31, an e-mail transmission / reception process between the communication satellite 9 and a satellite communication antenna 58 that transmits / receives data related to e-mail with the communication satellite 9 , A GPS antenna 59 that receives radio waves transmitted from the GPS satellites 41 and 42, and a GPS sensor that detects the current position of the mobile work machine 31 based on the received radio waves from the GPS satellites 41 and 42 57, a camera 60 that is attached to the upper part of the cabin of the vehicle body 50 and images the outside of the vehicle body 50, a camera drive mechanism 61 that drives the camera 60 to adjust the imaging direction, zoom, and the like, a car navigation device 55, and a communication terminal 56, a GPS controller 57, a camera 60, and a communication controller connected so as to exchange signals with the car navigation device 55. And over La 54, and the various controllers such as an electronic control controller 53 provided in the respective sections of the vehicle body 50 it is provided. The car navigation device is a device that displays the current position of its own vehicle detected by a GPS sensor on a map on a display screen. The car navigation device 55 is provided in the service car 34 and the mobile work machine transport vehicle 35. In this case, the car navigation device 55 functions as the terminals 13 and 14 equivalent to the terminals 11 and 12. Therefore, as will be described later, the position of the own vehicle is displayed on the display screen of the car navigation device 55 and the position of the mobile work machine that is the work target is displayed, so that an efficient movement route to the work target is set. Is done.

  The communication controller 54 and various controllers such as the electronic control controller 53 are connected in a daisy chain by a signal line 52 so as to enable serial communication, and constitute a network 51 in the vehicle body.

  That is, a frame signal of a predetermined protocol is transmitted on the signal line 52. When the frame signal is transmitted to the controllers 53, 54,..., Drive signals are output to actuators (hydraulic pumps, governors, control valves, etc.) connected to the controllers 53, 54, etc. according to the data described in the frame signals. The actuator is driven and controlled, and detection data detected by sensors connected to the controllers 53, 54... Or data indicating information inside the device is acquired and described in the frame signal.

  The electronic controller 53 is connected to a sensor group 62 that detects information about the moving body 31 (this is called moving body information) such as the engine speed, battery voltage, fuel amount, cooling water temperature, and occurrence of an abnormality (error code). ing. Therefore, data relating to the moving body information detected by the sensor group 62 is described in the frame signal and sent to the communication controller 54 via the signal line 52.

  The communication controller 54 receives the data of the position detected by the GPS sensor 57 and the image data captured by the camera 60. The communication controller 54 generates a drive command for the camera drive mechanism 61 and outputs the drive command to the camera drive mechanism 61, thereby operating the camera drive mechanism 61 and adjusting the imaging direction and zoom of the camera 60. The position data of the moving body 31 detected by the GPS sensor 57 and the image data outside the vehicle body 50 acquired by the camera 60 are included in the “moving body information”.

  The communication terminal 56 interprets the contents of the e-mail received from the terminals 11 and 12 by the satellite communication antenna 58, creates an e-mail having response contents corresponding to the requested contents, and returns the e-mail. I do.

  That is, the mobile body information detected by the sensor group 62 of the electronic control controller 53 and the mobile body information detected by the GPS sensor 57 and picked up by the camera 60 are used in accordance with the request contents of the transmitted electronic mail. Is sent to the communication terminal 56 and taken into a reply e-mail.

  Display data corresponding to the work instruction content of the transmitted email is sent from the communication controller 54 to the car navigation device 55 and displayed on the display screen.

  The terminals 11 and 12 are assigned e-mail addresses for identifying the terminals 11 and 12, respectively. Further, the mobile bodies 31 to 35 are respectively assigned e-mail addresses that specify the mobile bodies 31 to 35.

  In the server terminal 21, the contents of the e-mail transmitted from the terminals 11 and 12 toward the mobile bodies 31 to 35 in association with the mail addresses of the mobile bodies 31 to 35 are stored in the mailboxes. The server terminal (mail server) 21 retrieves each mailbox for each of the mobile units 31 to 35, and provides data indicating that the corresponding mobile units 31 to 35 are requested to retrieve emails in the mailbox. Send. Receiving this, the mobile units 31 to 35 transmit data indicating that the e-mail in the corresponding mailbox is received to the server terminal 21. As a result, an e-mail is transmitted from the server terminal 21 to each of the mobile bodies 31 to 35.

  Similarly, the contents of the e-mail returned from the mobile units 31 to 35 to the terminals 11 and 12 in association with the mail addresses of the terminals 11 and 12 are stored in the mailbox. The server terminal (mail server) 21 searches each mailbox for each of the terminals 11 and 12, and transmits data requesting the corresponding terminals 11 and 12 to receive the email in the mailbox. . In response to this, the terminals 11 and 12 transmit data to the server terminal 21 to receive the e-mail in the corresponding mailbox. As a result, an e-mail is transmitted from the server terminal 21 to the terminals 11 and 12.

  The server terminal 21 sends the e-mail sent from the terminals 11 and 12 to the mobile units 31 to 35 and the e-mail sent from the mobile units 31 to 35 to the terminals 11 and 12. A communication status information extraction program for acquiring information on the reply status is stored and stored. By executing this communication state information extraction program, communication state information data indicating the current communication state information is generated.

  The server terminal 21 also stores a mobile body information extraction program that searches each mailbox for each terminal 11 and 12 and extracts mobile body information from the contents of an e-mail returned to each terminal 11 and 12. Stored. By executing this mobile body information extraction program, all mobile body information data MD indicating the latest information on all mobile bodies is generated. This all-moving body information data MD is data of contents in which the latest moving body information is associated with each of the moving bodies 31 to 35.

  Here, in the server terminal 21, a homepage for managing and monitoring the mobile bodies 31 to 35 is created and stored and stored in a database as data having a predetermined link structure. Each display screen of the home page is shown in FIGS. In this specification, a generic term for a series of linked pages following the first page is defined as a home page.

The server terminal 21 stores and stores a homepage update processing program for updating the data of the display screen corresponding to the homepage in accordance with the communication state information data and the entire mobile body information data MD. By executing this homepage update processing program, the mobile body information on the corresponding display screen of the homepage is updated according to the latest all mobile body information MD stored in the server terminal 21, and the corresponding display on the homepage is displayed. The communication status information on the screen is updated according to the current communication status information stored in the server terminal 21. Note that the latest data is added to the time series data (such as the fuel quantity time series data shown in FIG. 29) and the oldest data is deleted.
Next, the operation of this embodiment will be described.

  The terminal 11 is assumed to be a terminal provided on the manager side of the mobile bodies 31 to 35, for example.

  When the WWW browser is activated on the terminal 11 on the administrator side, home page data is read from the server terminal 21 via the WWW browser and displayed on the display screen of the display device of the terminal 11.

  FIG. 27 shows a map display screen of the home page displayed on the display device of the terminal 11. The map data is stored in the computer of the terminal 11. As shown in FIG. 27, icons (pictograms) for specifying the moving bodies 31 to 35 are overwritten and displayed on the map. Since the icons are displayed, the types of the moving bodies 31 to 35 (bulldozer, hydraulic excavator, wheel loader, trailer, service car) can be easily identified on the screen. The position of the icon on the map corresponds to the latest mobile body position detected by the GPS sensor 57 in each mobile body 31 to 35 and stored in the database of the server terminal 21.

  When an input operation (key operation, click operation, etc.) for sequentially shifting the home screen display screen to the next page is performed by the input device of the terminal 11, the current screen is sequentially shifted to the next display screen. In this case, only the mobile work machine 31 desired to be displayed can be displayed by performing a click input operation on the icon of the mobile object (eg, mobile work machine 31) to be displayed among the icons of the respective mobile bodies 31 to 35 displayed on the display screen. It is possible to shift to a display screen showing detailed information.

  For example, FIG. 31 is a display screen for displaying a list of information on all the moving bodies 31-35.

  When an icon of a mobile body (for example, mobile work machine 31) whose detailed information is to be displayed is click-input operated on the display screen shown in FIG. 31, the display screen shown in FIG. Is displayed on the display screen. Similarly, the map display screen of all the mobile bodies 31 to 35 shown in FIG. 27 can be shifted to the display screen showing the detailed mobile body information of the specific mobile body shown in FIG.

  FIG. 28 shows a screen for displaying the latest data of individual models.

  As shown in FIG. 28, the current position, service meter value, fuel amount, engine speed, engine cooling water temperature, battery voltage, hydraulic pump discharge pressure, oil amount of a specific moving body (for example, mobile work machine 31), Information on moving objects such as abnormalities (error codes) and images from the camera is displayed. For example, as shown in FIG. 6, when the mobile work machine 31 is excavating the embankment 116, the excavation state of the embankment 116 is imaged by the camera 60. As a result, an image of the embankment 116 is displayed on the display screen of the terminal 11 as shown in FIG. For this reason, it is possible to visually grasp the work progress of the mobile work machine 31 at a remote location on the terminal 11.

  On the display screen shown in FIG. 28, when a specific mobile object information for which time series data is to be displayed, for example, a “graph” button for fuel amount, is click-input operated, the display screen shown in FIG. A graph showing the change in quantity over time is displayed on the display screen.

  In addition, when the operation map button is click-input operated on the display screen shown in FIG. 28, the screen is shifted to the display screen shown in FIG. 30, and the operation time (engine operation time) of the mobile work machine 31 for each date is a band graph. Is displayed. For this reason, the administrator can easily grasp the operation rate (productivity) of the specific mobile work machine 31 from the operation map shown in FIG.

  Similarly, the time-series data of the occurrence (error code) of the abnormality of the mobile work machine 31, that is, the history of the occurrence of the abnormality can be displayed on the display screen. For this reason, it is possible to take appropriate measures against the occurrence of a new abnormality determined from the past history of the occurrence of the abnormality. Further, since the terminal 11 side can accurately and quickly recognize the contents of the occurrence of the abnormality, it is possible to cope with a small number of people without dispatching a specialized engineer to the site.

  Next, processing contents when requesting the latest mobile body information to a specific mobile body from the display screen of the home page of the terminal 11 will be described.

  In this case, on the display screen shown in FIG. 31 or FIG. 27, an icon of a mobile body (for example, mobile work machine 31) for which the latest mobile body information is requested among all the mobile bodies 31 to 35 is clicked. As a result, the request destination identification data D2 having the content “mobile unit 31” is generated.

  Next, by performing an input operation for shifting the display screen, the display screen is shifted to the request execution display screen shown in FIG.

  32, each item “vehicle position”, “service meter”, “fuel amount”, “work mode”, “body warning 1” (error code 1), “body warning 2” (error code) of the moving body information shown in FIG. 2) Click an item to be requested among the check boxes indicating “battery voltage”, “engine water temperature”, “engine speed”, “pump pressure”, “oil amount”, “camera image”. As a result, mobile body information (for example, “vehicle position” and “fuel amount”) to be requested is selected from all the mobile body information of the mobile work machine 31, and the contents of “vehicle position” and “fuel amount” are selected. Request information identification data D3 is generated. As described above, the mobile body information necessary for maintenance and inspection such as the fuel amount and the battery voltage as well as the mobile body information that is basic in managing the operation rate such as the vehicle position and the service meter via the input device of the terminal 11 is provided. Can be selected and requested arbitrarily. Note that the imaging direction and zoom of the camera 60 can also be adjusted by operating the camera driving mechanism 61 by an input operation on the terminal 11.

  However, as the amount of mobile information to be requested increases, the amount of data communication increases and the communication fee increases. Therefore, in order to make the requester of the terminal 11 grasp the communication charge and recognize the economy, the amount of transmitted / received data is displayed at the stage when the item of mobile object information is selected. Specifically, numerical values of “the number of transmitted bytes”, “the number of received bytes”, and “the number of charged bytes of this month” are displayed together with “the number of current bytes”. The communication fee itself may be displayed instead of the communication data amount.

  32, each of the terminals “manager A (terminal 11)”, “manager B”, “service car”, “trailer (terminal 12)”,... Click on the display destination terminal to display information. As a result, a display destination terminal (for example, terminal 12) is selected from the terminals 11, 12,..., And display destination identification data D4 having the content “terminal 12” is generated. The terminal 12 is assumed to be a terminal provided on the operator side of the mobile work machine transport vehicle (trailer) 35.

  FIG. 33 shows a communication control processing procedure in a sequence diagram. This will be described below with reference to this figure.

  When the data input operation is performed at the request source terminal 11, the request source identification data D 1 indicating the request source terminal (terminal 11) and the request destination mobile body (movement work) from the terminal 11 to the server terminal 21. Request destination identification data D2 indicating the machine 31), request information identification data D3 indicating the content of the request information (vehicle position, fuel amount), and display destination identification data D4 indicating the display destination terminal (terminal 12), The data is transmitted to the server terminal 21 as an electronic mail with a data structure according to a communication protocol in the Internet 2. Here, the request source identification data D1 (“terminal 11”) corresponds to the mail address of the request source terminal 11. The display destination identification data D4 (“terminal 12”) corresponds to the mail address of the display destination terminal 12. Further, the request destination identification data D <b> 2 (“mobile work machine 31”) corresponds to the mail address of the mobile work machine 31.

  The server terminal 21 receives the transmitted electronic mail, reads the request destination identification data D2, and stores the electronic mail in the mailbox of the mobile work machine 31 corresponding to the request destination identification data D2 (“mobile work machine 31”). Store and store email content.

  The server terminal (mail server) 21 transmits data requesting the mobile work machine 31 to receive an e-mail in the mailbox. That is, a response request signal is transmitted from the communication satellite 9 to the mobile work machine 31 via the wireless communication line 5. The transmission of the response request signal from the communication satellite 9 side to the mobile work machine 31 is often unknown as to whether or not communication is possible, such as when the mobile work machine 31 is in an environment where the communication state is not good. Done. On the other hand, the presence or absence of a response request signal from the mobile work machine 31 to the communication satellite 9 is intermittently performed. The presence / absence of the response request signal is confirmed by sensing a radio wave indicating the response request signal transmitted from the communication satellite 9. Therefore, a request can be reliably transmitted to the mobile work machine 31 from the communication satellite 9 side. The confirmation of the presence or absence of the response request signal (sensing of a radio wave indicating the response request signal) is performed at the time when the specific event occurs or after a predetermined time has elapsed since the specific event occurred.

  For example, it can be detected that the engine of the mobile work machine 31 has been started, and the presence or absence of a response request signal can be confirmed using this detection signal as a trigger. In this case, the presence or absence of a response request signal may be confirmed only at the time when the engine is first started within one day.

  Further, it can be detected that an abnormality has occurred in the mobile work machine 31, and the presence or absence of a response request signal can be confirmed using this detection signal as a trigger.

  In addition, it is possible to confirm the presence or absence of a response request signal when a predetermined time has elapsed since the last transmission by the mobile work machine 31, and to perform the next transmission.

  The specific event or the predetermined time can be arbitrarily changed. You may make it change by input operation to the input device of the terminal 11. FIG.

  If the response request signal is present as a result of checking the presence or absence of the response request signal, the mobile work machine 31 sends data indicating that the electronic mail in its mailbox is received via the communication satellite 9 to the server terminal. 21 is transmitted. As a result, an e-mail is transmitted from the server terminal 21 to the mobile work machine 31.

  That is, an electronic mail is transmitted to the network control station 7 via the Internet 2, and the electronic mail data is protocol-converted. Then, the protocol-converted electronic mail is sent to the dedicated line 3. An e-mail is transmitted to the mobile work machine 31 via the satellite earth station 8, the feeder line 4, the communication satellite 9, and the wireless communication line 5, and received by the satellite communication antenna 58 of the mobile work machine 31.

  The communication terminal 56 of the mobile work machine 31 reads the request information identification data D3 (“vehicle position”, “fuel amount”) from the e-mail received by the satellite communication antenna 58, and moves corresponding to the request information identification data D3. The communication controller 54 is instructed to acquire body information, that is, vehicle position data and fuel amount data in the mobile work machine 31.

  In response to this, the communication controller 54 sends the vehicle position data currently detected by the GPS sensor 57 to the communication terminal 56. Further, data indicating that the “fuel amount” should be acquired by the electronic controller 53 is described in the frame signal and transmitted to the signal line 52. The electronic controller 53 reads the description content of the frame signal, collects the current fuel amount detection data from the sensor group 62 of the electronic controller 53, and describes it in the frame signal. Then, this frame signal is sent to the communication controller 54 via the signal line 52. The communication controller 54 reads the fuel amount data described in the frame signal and sends it to the communication terminal 56. As a result, in the communication terminal 56, the vehicle position data and the fuel amount data are taken into the return e-mail as the moving body information data D3 ′.

  From the communication terminal 56 via the satellite communication antenna 58, return source identification data D2 (mobile work machine 31) indicating the return source mobile body, return destination identification data D4 (terminal 12) indicating the return destination terminal, and movement Mobile body information data D3 ′ (vehicle position data and fuel amount data) indicating body information is transmitted to communication satellite 9 as a reply e-mail with a data structure according to a predetermined communication protocol. D1 and D3 are also transmitted simultaneously. D1 can be used as a distribution key for each billing destination of communication charges. D3 is used for content identification of D3 ′. Here, the reply source identification data D <b> 2 (“mobile work machine 31”) corresponds to the mail address of the mobile work machine 31. The reply destination identification data D4 (“terminal 12”) corresponds to the mail address of the display destination terminal 12.

  The reply e-mail is received by the communication satellite 9 and further transmitted to the network control station 7 via the feeder line 4, the satellite earth station 8, and the dedicated line 3. The network control station 7 converts the reply e-mail data into a protocol, and sends the protocol-converted reply e-mail to the Internet 2.

  The server terminal 21 receives the transmitted electronic mail, reads the reply destination identification data D4, and stores the contents of the electronic mail in the mailbox of the terminal 12 corresponding to the reply destination identification data D4 (“terminal 12”). Store and store.

  Further, the mobile body information extraction program D3 ′ (“vehicle position data”, “fuel amount data”) is extracted from the contents of the e-mail stored in the mailbox of the terminal 12 by executing the mobile body information extraction program and the reply source. Identification data D2 ("mobile work machine 31") is extracted, and the latest vehicle position data and fuel amount data are stored in association with the address of the mobile work machine 31. In this way, the contents of all mobile information data MD are updated.

  The server terminal (mail server) 21 transmits data indicating that the terminal 12 is requested to retrieve the e-mail in the mailbox. Receiving this, the terminal 12 transmits data indicating that the e-mail in the mailbox is received to the server terminal 21. As a result, an electronic mail is transmitted from the server terminal 21 to the terminal 12. Data to be transmitted can be limited by the security layer of D4.

  When the e-mail is received at the terminal 12 on the operator side of the mobile work machine transport vehicle 35, the reply source identification data D2 (mobile work machine 31) and the mobile body information data D3 ′ (vehicle position data and fuel are sent from the e-mail data. Amount data) is read out. Then, the contents of the e-mail, that is, the current position of the mobile work machine 31 and the current fuel amount are displayed on the display screen of the terminal 12.

  For this reason, the operator of the transport vehicle 35 can recognize the model 31 of the specific mobile work machine instructed to be transported from the manager side from the display screen of the terminal 12, and transport the mobile work machine 31. The necessary current position and current fuel amount can be recognized. In addition, the operator on the terminal 12 side can obtain only information necessary for work from the display screen of the terminal 12 without performing an information request input operation. That is, even if an operator who wants to obtain information cannot perform an input operation on the terminal 12 side, information necessary for work can be obtained. For this reason, the operation | work which conveys the mobile work machine 31 can be performed very efficiently.

  In the embodiment described above, information required for transportation is displayed on the terminal 12 on the operator side of the transport vehicle 35 by performing a request input operation on the terminal 11 on the manager side. It is also possible to display information necessary for services such as maintenance and inspection on the terminal 12 on the serviceman side who operates the service car 34 by performing a request input operation in FIG.

  In this case, in the same manner, an electronic device using the current position data, service meter, and abnormality data of the mobile work machine 31 as mobile object information is transferred from the administrator side terminal 11 to the service person side terminal 12 via the mobile work machine 31. An email is sent.

  When the e-mail is received at the terminal 12 on the service person side, the reply source identification data D2 (mobile work machine 31) and the moving body information data D3 ′ (vehicle position data and abnormal data (error code)) are obtained from the e-mail data. Is read out. Then, the contents of the e-mail, that is, the current position of the mobile work machine 31 and the current abnormality occurrence item (error code) are displayed on the display screen of the terminal 12.

  For this reason, the service person driving the service car 34 can recognize the model 31 of the specific mobile work machine instructed by the administrator from the display screen of the terminal 12, and the mobile work machine 31. It is possible to recognize the current vehicle position necessary for the service and the current abnormality occurrence item (error code). Moreover, as a service person on the terminal 12 side, only information necessary for work can be obtained from the display screen of the terminal 12 without performing an information request input operation. That is, even if a service person who wants to obtain information cannot perform input operation on the terminal 12 side, information necessary for work can be obtained. For this reason, operations such as maintenance and inspection of the mobile work machine 31 can be performed very efficiently.

  Next, it is assumed that the administrator terminal is the server terminal 21.

  In this case, information required for centrally managing a plurality of mobile objects can be displayed on the server terminal 21 on the manager side by performing a request operation input on the terminal 12 on the serviceman side who drives the service car 34. For example, when the serviceman replenishes the mobile work machine 31 with oil, the serviceman himself / herself recognizes that the oil has been sufficiently replenished, so there is no need to confirm again on the display screen of the terminal 12. On the other hand, it is necessary to present information for managing the oil replenishment work and the next oil replenishment time to the manager side.

  In this case as well, an e-mail having the current oil amount data of the mobile work machine 31 as mobile body information is transmitted from the terminal 12 on the service person side to the server terminal 21 via the mobile work machine 31.

  When the server terminal 21 receives the e-mail, the reply source identification data D2 (mobile work machine 31) and the moving body information data D3 ′ (oil amount data) are read from the e-mail data. Then, the content of the e-mail, that is, the current oil amount of the mobile work machine 31 is displayed on the display screen of the server terminal 21.

  For this reason, the administrator can recognize the model 31 of the specific mobile work machine for which the oil supply service has ended from the display screen of the server terminal 21, and the current oil necessary for the management of the mobile work machine 31. The amount can be recognized. Moreover, as an administrator on the server terminal 21 side, only information necessary for management can be obtained from the display screen of the server terminal 21 without performing an information request input operation. That is, even if the administrator who wants to obtain information cannot perform input operation on the server terminal 21 side, information necessary for managing the mobile object can be obtained. For this reason, the unified management work of the mobile bodies 31-35 can be performed very efficiently.

  In the above-described embodiment, the request source terminal and the display destination terminal are different, but the request source terminal and the display destination terminal may be the same.

  For example, by performing a request input operation on the terminal 11 on the operator side of the mobile work machine 31, information necessary for the start inspection can be displayed on the same terminal 11. The operator of the work work machine 31 performs the request input operation at the terminal 11 in the office before getting on.

  In this case as well, an e-mail having the current fuel amount data and oil amount data of the mobile work machine 31 as mobile body information is transmitted from the terminal 11 to the terminal 11 via the mobile work machine 31.

  When the terminal 11 receives the e-mail, reply source identification data D2 (mobile work machine 31) and mobile body information data D3 ′ (fuel amount data and oil amount data) are read from the e-mail data. Then, the contents of the e-mail, that is, the current fuel amount and oil amount of the mobile work machine 31 are displayed on the display screen of the terminal 11.

  For this reason, the operator of the mobile work machine can recognize from the display screen of the terminal 11 the current fuel amount and oil amount necessary for the start-up inspection of the model 31 of the specific mobile work machine to be boarded. In this case, the operator on the terminal 11 side can obtain in advance from the display screen of the terminal 11 only the information necessary for the work inspection without actually moving to the mobile work machine 31. For this reason, the start work inspection work of the mobile work machine 31 is easily and efficiently performed, and the deficiencies discovered in the start work inspection can be dealt with in advance.

  Similarly, by performing a request input operation at the terminal 11 on the operator side of the mobile work machine transport vehicle 35, information necessary for the transport work can be displayed on the same terminal 11. For this reason, the operator of the mobile work machine transport vehicle 35 obtains the mobile body information (current position, current fuel amount, etc.) necessary for transporting the model 31 of the specific mobile work machine to be transported from the display screen of the terminal 11. Can be recognized. In this case, the operator on the terminal 11 side can obtain in advance from the display screen of the terminal 11 only information necessary for carrying work without actually moving to the mobile work machine 31. For this reason, the transport work of the mobile work machine 31 is easily and efficiently performed, and deficiencies can be dealt with in advance.

  Similarly, by performing a request input operation at the terminal 11 on the service person side of the service car 34, information necessary for services such as maintenance and inspection can be displayed on the same terminal 11. For this reason, the service person of the service car 34 recognizes the moving body information (current position, abnormality occurrence, service meter) necessary for the service of the model 31 of the specific mobile work machine to be serviced from the display screen of the terminal 11. can do. In this case, the service person on the terminal 11 side can obtain only information necessary for the service from the display screen of the terminal 11 in advance without actually moving to the mobile work machine 31. For this reason, the service of the mobile work machine 31 can be performed easily and efficiently, and deficiencies can be dealt with in advance. That is, it is possible to recognize an abnormal state before actually moving to the mobile work machine 31, and to efficiently arrange parts, request a supporter, and investigate a repair method.

  Further, according to the present embodiment, the latest all moving body information MD regarding the plurality of moving bodies 31 to 35 updated by the request input operation from the plurality of terminals 11, 12... Is transmitted to an arbitrary terminal (for example, the terminal 11). The effect that it can be displayed is acquired. This will be described again with reference to FIG.

  That is, as described above, when a reply e-mail is transmitted from the mobile work machine 31 to the server terminal 21, the e-mail stored in the mailbox of the display destination terminal 12 is executed by the server terminal 21. The mobile body information data D3 ′ (“vehicle position data”, “fuel amount data”) is extracted from the contents of the information, and the reply source identification data D2 (“mobile work machine 31”) is extracted, and the address of the mobile work machine 31 is extracted. The latest vehicle position data and fuel amount data are stored in association with. As a result, the contents of the entire mobile information data MD are updated. Further, the homepage update processing program is executed in the server terminal 21 and the mobile body information on the corresponding display screen of the homepage is updated according to the latest all mobile body information MD stored in the server terminal 21. The latest data is added to the time series data (such as the fuel quantity time series data shown in FIG. 29) and the oldest data is deleted.

  Therefore, when the WWW browser is activated on the terminal 11, the updated home page data is read from the server terminal 21 via the WWW browser. As a result, the mobile body information updated with the latest all mobile body information MD is displayed on the display screen of the display device of the terminal 11. That is, when there is an input operation for requesting the latest all mobile information MD from the terminal 11 to the server terminal 21, the latest all mobile information MD is displayed on the display screen of the terminal 11.

  It is assumed that the display shown in FIG.

  Then, the icon of the mobile work machine 31 is switched to a position on the map corresponding to the latest (current) vehicle position data and displayed on the map shown in FIG.

  When the display screen shown in FIG. 28 is displayed, the “position data” value and the “fuel amount” value on the screen are switched to the latest (current) vehicle position data value and fuel amount data value, respectively. Displayed. Further, when the display screen is changed to the display screen shown in FIG. 29 or FIG. 30, the time change graph or operation map of the fuel amount is switched to the latest one and displayed.

  As described above, according to the present embodiment, the latest all mobile body information MD regarding the plurality of mobile bodies 31 to 35 updated according to the request input operation from the plurality of terminals 11, 12. It can be displayed on the display screen. For this reason, the effect that the latest mobile body information of the several mobile bodies 31-35 can be acquired with arbitrary terminals, and all the mobile bodies can be managed and monitored is acquired. That is, it is possible to centrally manage the latest mobile body information related to the plurality of mobile bodies 31 to 35 requested by a plurality of requesters at an arbitrary terminal.

  In this embodiment, a database is provided for each of the server terminals 21 and 22, and all mobile information MD is stored individually. Therefore, by transferring the storage data (total mobile body information MD) of the database of one server terminal to the database of the other server terminal, it is possible to share the entire mobile body information in the database of the other server terminal. The contents stored in the database (all mobile information MD) can be the same. Specifically, this is achieved by a method of automatically transferring an electronic mail (mobile unit information is described) sent back to one server terminal to another server terminal.

  As described above, the terminal 13 equivalent to the terminal 11 and the terminal 12 is mounted on the service car 34, and the function of the car navigation device 55 is incorporated in the terminal 13 and operates.

  Hereinafter, an embodiment will be described in which work instruction data is transmitted from a terminal 11 on the manager side to a terminal 13 provided in a service car 34 to give a work instruction to a service person. In particular, service personnel often perform repairs, parts replacement, inspection work, etc. in the field, and there are few opportunities to contact the manager directly. If the system of the present embodiment is used, the place and time for receiving the work instruction are not limited, and the work instruction can be received efficiently.

  In the same manner as described with reference to FIG. 33, the terminal 11 on the service car 34 is used as the display destination terminal (display destination identification data D4), and the mobile work machine 31 is set as the request destination mobile body (request destination). As the identification data D2), an e-mail to which each data of the message “Failure E occurs, express” is added. Here, the message data “Failure E occurs, express” is added to the e-mail when the input device of the terminal 11 is input.

  For this reason, as shown in FIG. 3, on the display screen 13a of the terminal 13 of the service car 34 that is the display destination terminal, the icon of the mobile work machine 31 that is the service target is displayed at the latest (current) position on the map. The icon of the own service car 34 is displayed at the current position on the map. The current position of the own vehicle 34 is detected by a GPS sensor 57 mounted on the own vehicle 34 and displayed on the screen 13a. Further, a message transmitted by electronic mail (“instruction message: occurrence of failure E, express”) is displayed in message portion 103 of the display screen of terminal 13.

  As a result, the service person riding in the service car 34 recognizes from the display screen 13a that the next service target (destination) is the mobile work machine 31, its current position, and a message regarding the work content. be able to. The terminal 13 stores and stores an automatic route generation program. In this automatic route generation program, when the current position of the vehicle 34 and the destination (the current position of the mobile work machine 31) are given, a process for automatically generating the shortest movement route on the map is performed. Therefore, when this automatic route generation program is executed, the shortest movement path 102 from the current position of the own vehicle 34 to the current position of the mobile work machine 31 that is the destination is displayed on the display screen 13a of the terminal 13. .

  Therefore, the service person can run the service car 34 according to the display screen 13a of the terminal 13 and perform work at the destination.

  If the work according to the work instruction content is possible, the button 110 indicating “OK” on the display screen 13a is clicked. When the service car 34 arrives at the destination and starts work, the button 113 indicating “arrival” on the display screen 13a is clicked. When the service work of the mobile work machine 31 is finished, the button 112 indicating “End” on the display screen 13a is clicked. When the work according to the work instruction content cannot be received for some reason, the button 111 indicating “pause” on the display screen 13a is clicked. The contents of the input operation by the click operation on the terminal 13 are transmitted from the terminal 13 to the administrator-side terminal 11 by electronic mail. The terminal 11 can grasp the work progress state of the service car 34 by receiving this electronic mail. The input operation may be a voice input operation other than a touch operation such as a click operation, a key operation, or a panel touch operation.

  In this way, services such as maintenance and inspection are performed very efficiently. In particular, according to the present embodiment, since the latest position of the mobile work machine 31 is displayed on the screen 13a, even if the service target 31 is moving in the work site, the vehicle 34 can be reliably secured without losing sight of the target. Can be run.

In the embodiment described above, an e-mail is sent from the administrator side terminal 11 with the display destination terminal as the terminal 13 of the service car 34 to display the contents shown in FIG. It is possible to display the contents of FIG. That is,
1) An e-mail is sent from the administrator terminal 11 with the terminal 11 as the display destination terminal (display destination identification data D4) and the mobile work machine 31 as the request destination mobile body (request destination identification data D2). Thereby, the latest position of the mobile work machine 31 is acquired by the terminal 11.

2) The terminal 11 transmits to the terminal 13 an e-mail having the above-obtained current position of the mobile work machine 31 and the message “Failure E occurs, express” as work instruction data.

It is also possible to display the contents of FIG. 3 on the terminal 13 by the following procedure. That is,
1) From the terminal 11 to the terminal 13, message data “Failure E occurs, express” is transmitted as an e-mail.

2) Start a WWW browser on the terminal 13 and read the updated homepage data from the server terminal 21 via the WWW browser. Therefore, the latest position of the mobile work machine 31 is displayed on the display screen of the terminal 13 as the latest all moving body information MD.

  The contents of the work instruction data indicating the position of the moving body and the work contents sent from the terminal 11 on the manager side are arbitrary. For example, the work content for one day may be instructed as the work content. Here, by requesting an operation map (FIG. 30) of the service car 34 from the administrator-side terminal 11 to the server terminal 21, the daily operation rate of the service car 34 can be grasped. Therefore, it is possible to automatically and accurately create a daily work report by matching the daily operating rate with the work contents for one day instructed from the manager side to the service car 34 side.

  Further, not only the position of the service target (the position of the mobile work machine 31) is transmitted from the administrator side terminal 11 to the terminal 13 of the service car 34, but the position of the other service car 34 'is also transmitted together. May be. As a result, the position of the other service car 34 'is displayed on the display screen 13a of the terminal 13 on the service car 34 side, so that it is easy to move to and contact the service car 34', and the service work is performed more efficiently. be able to. In other words, tools, replacement parts, etc. can be borrowed from other service personnel, and support requests can be made. A skilled service person can also consult.

  In the above-described embodiment, the data of the position of one mobile work machine 31 is transmitted from the terminal 11 on the manager side to the terminal 13 of the service car 34. However, a plurality of mobile work machines 31A, 31B, 31C, 31D are transmitted. It is also possible to efficiently perform service patrol for the plurality of mobile work machines 31A to 31D by transmitting the position.

  In this case, the terminal 13 of the service car 34 has a current position of the plurality of mobile work machines 31A to 31D and a service meter increment value (“3H”, for each mobile work machine 31A to 31D from the last round to the present. Work instruction data having the contents “678H”, “10H”, “500H”) is transmitted.

  Accordingly, on the display screen 13a of the terminal 13 of the service car 34, as shown in FIG. 5, the icons of the mobile work machines 31A to 31D are displayed at the current positions on the map and the mobile work machines 31A to 31D. Each time the service meter increase value is displayed. Here, for example, even if the mobile work machine 31D has moved relative to the previous position (indicated by a broken line), the current position (indicated by a solid line) is displayed on the map of the screen 13a.

  The terminal 13 stores and stores an automatic tour route generation program. In the automatic tour route generation program, when the current position of the vehicle 34 and a plurality of tour candidate sites (mobile work machines 31A to 31D) are given, only the tour candidate sites whose service meter increase value is larger than the set value are obtained. A process of selecting and automatically generating the most efficient patrol movement route passing through the selected patrol candidate sites is performed. Therefore, when this automatic route generation program is executed, the mobile work machines 31B and 31D having a large service meter increase value (“678H”, “500H”) from the current position of the own vehicle 34 are displayed on the display screen 13a of the terminal 13. A traveling route 108 indicated by a solid line passing through and returning to the vehicle 34 is displayed.

  Therefore, as a service person, the service patrol can be performed very efficiently by running the service car 34 along the patrol movement route 108 indicated by the solid line and working in each patrol place according to the display screen 13a of the terminal 13. . That is, conventionally, as shown by a broken line in FIG. 5, when a certain time has elapsed since the previous service patrol, the patrol route 109 that passes through all of the mobile work machines 31 </ b> A to 31 </ b> D is uniformly set for all vehicles. I was trying to do the work. On the other hand, according to the present embodiment, the operating time has not progressed since the previous service patrol (service meter increase values “3H”, “10H”). The patrol travel path 108 avoids the mobile work machines 31A and 31C. Since work is performed, useless work can be avoided.

  In addition, the cyclic | annular movement path | route 108 shown as a continuous line in FIG. 5 may not be generated automatically but may be set by judgment of a service person.

  In the above-described embodiment, work instruction data is transmitted from the terminal 11 on the manager side to the terminal 13 mounted on the service car 34, but the terminal 14 mounted on the mobile work machine transport vehicle 35 from the terminal 11 on the manager side. It is also possible to perform work loading work efficiently by transmitting work instruction data.

  In this case, the terminal 14 of the mobile work machine transporter 35 has each data of the current position of the mobile work machine 31 as a loading place, the position of the unloading place 106 where the loaded vehicle is to be unloaded, and the message “return as soon as it is finished”. An e-mail consisting of

  In response to this, on the display screen 14a of the terminal 14 of the transport vehicle 35, as shown in FIG. 4, the icon of the mobile work machine 31 is displayed at the current position on the map, and the icon of the getting-off place 106 corresponds to the map. It is displayed at the position to be. The current position of the vehicle 35 is detected by the GPS sensor 57 mounted on the vehicle 35 and displayed on the screen 14a. Further, a message transmitted by electronic mail (“instruction message: return as soon as it is finished”) is displayed in the message portion 107 of the display screen of the terminal 14. Thus, the operator who is on the transport vehicle 35 displays the display screen 14a indicating that the next transport target is the mobile work machine 31, its current position, the point at which the vehicle is to be unloaded, and the specific work content. Can be recognized from above.

  The terminal 14 stores and stores an automatic transport route generation program. In this automatic haul route generation program, the shortest haul route that selects only a road with a width through which the own vehicle 35 can pass as a route from the current position of the own vehicle 35 to the unloading place 106 through the loading place 31 is selected. Processing to generate automatically is performed. Therefore, when this automatic transportation route generation program is executed, the display screen 14a of the terminal 14 passes through the mobile work machine 31 from the own vehicle 35 in which the narrow road 105 through which the own vehicle 35 cannot pass is avoided. The shortest transportation movement route 104 to the disembarking place 106 is displayed.

  If the work according to the contents of the work instruction is possible, the button 110 indicating “OK” on the display screen 14a is clicked. When the transport vehicle 35 arrives at the loading location 31 and starts loading work, the button 114 indicating “loading” on the display screen 14a is clicked. When the transport vehicle 35 arrives at the unloading place 106 and starts the unloading work, the button 115 indicating “get off” on the display screen 14a is clicked. When the loading and transporting (getting off) work of the transport vehicle 35 is completed, the button 112 indicating “END” on the display screen 14a is clicked. When the work according to the work instruction content cannot be received for some reason, the button 111 indicating “pause” on the display screen 14a is clicked. The content of the input operation by the click operation on the terminal 14 is transmitted from the terminal 14 to the administrator side terminal 11 by electronic mail. The terminal 11 can grasp the work progress state of the transport vehicle 35 by receiving this e-mail. The input operation may be a voice input operation other than a touch operation such as a click operation, a key operation, or a panel touch operation.

  Therefore, as an operator, according to the display screen 14a of the terminal 14, by carrying the work by moving the transporting vehicle 35 along the transporting movement route 104, the loading and transporting (getting off) work can be performed very efficiently. Furthermore, further efficiency improvement can be achieved, for example, the return path of the transporting vehicle 35 (empty state) after getting off is applied to the transport of another mobile work machine 31 to 33.

  Furthermore, it is also possible to perform excavation work and the like by transmitting work instruction data from the terminal 11 on the manager side to a terminal equipped with the mobile work machine 31 such as a hydraulic excavator.

  For example, by transmitting to the terminal of the mobile work machine 31 data indicating the target of excavation amount for the day, the end time of the work, and the current position of the dump truck as the loading destination, these are displayed on the display screen of the terminal, and the operator The operation of the work machine can be performed according to the display screen, and a series of operations of excavating the earth and loading it onto the dump truck can be performed efficiently.

  By the way, in the present embodiment, data is transmitted and received using an electronic mail service on the Internet 2. In this case, the server terminal 21 as a mail server confirms whether or not there is an electronic mail in the mail box at regular intervals. For this reason, there is a certain delay from when the e-mail is transmitted from the terminal (for example, the terminal 11) until it is actually received by the mobile body (for example, the mobile work machine 31) to which the mail address is addressed.

  In this embodiment, data is transmitted and received by satellite wireless communication by the communication satellite 9. In satellite wireless communication, if the communication environment between transmitters and receivers is not good, such as when the maximum elevation angle of the satellite is small and a line of sight cannot be obtained, the communication line 5 cannot be secured, so communication is performed several times. The process which tries is performed. For this reason, there is a delay due to the communication environment from when data is transmitted from the communication satellite 9 until it is actually received by the mobile body (for example, the mobile work machine 31).

  As described above, in the communication system according to the present embodiment, there is a time difference of, for example, several minutes from when an e-mail is transmitted at the request source terminal to when it is received at the request destination mobile unit. In such a low-real-time communication system, the operator of the requesting terminal may feel uneasy due to unknown communication status and may affect work efficiency. In addition, since the communication state is unknown, there is a possibility that the duplicated electronic mail is retransmitted and the communication cost is affected.

  Therefore, it is desired to display a communication state with each mobile object on the display screen of the terminal to avoid a decrease in work efficiency and an increase in communication cost due to an unknown communication state.

Furthermore, in this embodiment, requests for mobile body information are issued from a plurality of terminals to one mobile body. Therefore, it is impossible to determine how much new mobile information is currently obtained (when mobile information is requested) by only one terminal.
Therefore, on the display screen of the terminal, the time elapsed since the last request was received by the mobile object is displayed, and the management information of the mobile object indicating how new the mobile object information currently obtained is. It is desired to inform the operator.

  The embodiments described below meet these requirements.

  That is, as shown in FIG. 31, the terminal 11 displays icons (hydraulic excavator pictures, service car pictures, trailer pictures, etc.) as mobile object identifiers in association with the plurality of mobile objects 31 to 35, respectively. Has been. When an e-mail requesting mobile body information is transmitted from the request source terminal 11 to the requesting mobile work machine 31, the icon of the mobile work machine 31 is changed to that shown in FIG. The display content changes in the manner shown.

  That is, as shown in FIG. 16A, the communication state between the terminal 11 and the mobile work machine 31, that is, the communication procedure, changes to “no request”, “requesting”, “reply”, “no reply”. Accordingly, the color of the icon of the mobile work machine 31 changes to “blue”, “yellow”, “green”, and “red”.

  This will be described with reference to the flowchart shown in FIG.

  FIG. 15 shows a procedure of processing for changing the display according to the communication procedure. This processing is executed by the server terminal 21 and the processing result is displayed on the display screen of the terminal 11.

  First, in the initial state, the icon of the mobile work machine 31 is displayed in a “blue” color corresponding to “no request” (step 201).

  Here, when an e-mail requesting mobile body information is transmitted from the request source terminal 11 to the requested mobile work machine 31, and the e-mail is stored in a mailbox addressed to the mobile work machine 31 (step 202). YES, the icon of the mobile work machine 31 transitions to a “yellow” color display corresponding to “requesting” (step 203).

  When the e-mail returned from the requested mobile work machine 31 is stored in the mailbox (YES in step 204), the icon of the mobile work machine 31 is “green” corresponding to “reply”. Transition to color display (step 207). When one day has passed since the transition to the “Reply” state (YES in Step 208), the icon of the mobile work machine 31 returns to the “blue” display corresponding to “No Request” (Step 201). . In this case, when the returned mobile body information is transmitted to the display destination terminal (for example, the terminal 12) and displayed, the process proceeds from step 207 to step 201 to display “blue” corresponding to “no request”. You may make it return.

  On the other hand, if the e-mail to be returned from the requested mobile work machine 31 is not stored in the mailbox (NO at step 204, YES at step 205), it is difficult to secure the wireless communication line 5. Therefore, the icon of the mobile work machine 31 transitions to a “red” color display corresponding to “no reply” (step 206).

  In the above description, it is assumed that mobile body information is requested from the terminal 11 to the mobile work machine 31, but the mobile body information is sent from each terminal 11, 12,... To each mobile body 31, 32, 33, 34, 35. Similarly, the icon of the request-destination mobile body changes according to the communication state at the request-source terminal.

  As described above, according to the present embodiment, even when a communication means with low real-time characteristics is used, the display content changes according to the communication state, and the “degree of communication delay” is displayed on the display screen of the terminal 11. Can be recognized. In addition, the request is not duplicated with other terminals. For this reason, it is possible to avoid a decrease in work efficiency and an increase in communication cost due to an unknown communication state.

  Next, on the display screen of the terminal 11, the time elapsed since the mobile unit was last requested is displayed, and how much the mobile unit information currently obtained is new in terms of management of the mobile unit. An embodiment in which the information can be informed to the operator will be described.

  That is, as shown in FIG. 18, the communication state between the terminals 11, 12... And the mobile work machine 31, that is, the elapsed time from the last request to the mobile work machine 31 from each terminal 11, 12. The mobile work machine 31 changes in response to the change of “not requested”, “not requested from 1 to 3 days”, “not requested from 3 days to 1 week”, “not requested for more than 1 week” The icon color is “blue” (“no request # 0”), “yellow” (“no request # 1”), “pink” (“no request # 2”), “red” (“no request # 3”) )).

  As shown in FIG. 18, an e-mail requesting mobile body information is transmitted from the terminals 11, 12,... To the requested mobile work machine 31, and the e-mail is stored in a mailbox addressed to the mobile work machine 31. (YES at step 301), the timer is reset (step 305), and the icon of the mobile work machine 31 transitions to a “blue” display corresponding to “no request # 0” (step 306).

  If the elapsed time since the timer was reset is less than one day (NO at step 302), the icon of the mobile work machine 31 is displayed in a “blue” color corresponding to “no request # 0”. Maintained (step 306).

  If the elapsed time since the timer is reset is longer than 1 day and within 3 days (YES at step 302, NO at step 303), the icon of the mobile work machine 31 is “no request # 1. "(Yellow)" corresponding to "" is displayed (step 307).

  If the elapsed time since the timer was reset is more than 3 days and within one week (determination in step 303, determination in step 304), the icon of the mobile work machine 31 is “no request # 2. "(Pink) color display corresponding to" "(step 308).

  If the elapsed time since the timer is reset exceeds one week (determination YES in step 304), the icon of the mobile work machine 31 is displayed in “red” color corresponding to “no request # 3”. A transition is made (step 309).

  When the timer counts, an e-mail requesting mobile body information is transmitted from the terminals 11, 12,... To the requested mobile work machine 31, and the e-mail is stored in a mailbox addressed to the mobile work machine 31. (Yes at Step 301), the timer is reset (Step 305), and the icon of the mobile work machine 31 transitions to a “blue” display corresponding to “no request # 0” (Step 306).

  In the above description, it is assumed that the time elapsed since the last request to the mobile work machine 31 is displayed on the terminal 11, but the other mobile bodies 32 to 35 are also displayed in the same manner. Also, in other terminals 12..., The elapsed time since the last request for each mobile unit 31, 32, 33, 34, 35 is displayed.

  As described above, according to the present embodiment, it is possible to recognize the progress of the mobile units 31 to 35 since the last request is made on the display screen of the terminal, and the mobile units 31 to 35 are currently obtained. It is possible to know management information about how new the moving body information is.

  Various modifications can be made to the above embodiment. Hereinafter, FIGS. 16B to 16D, FIGS. 17, 19, and 20 will be described.

  Next, on the display screen of the terminal 11, the elapse of time since the last incoming e-mail indicating mobile body information is displayed from the mobile body, and how much the mobile body information currently obtained is new. A description will be given of an embodiment in which the operator can be informed of information on management of such a moving body. Here, “incoming” means that an e-mail indicating moving body information is returned from the moving body, and an e-mail indicating moving body information is automatically transmitted from the moving body without request from the terminal side as will be described later. Including both cases.

  That is, as shown in FIG. 19, the state of communication with the mobile work machine 31, that is, the time elapsed since the last incoming call (reply, automatic call) from the mobile work machine 31 to the server terminal 21 is "no incoming call within one day" The color of the mobile work machine 31 icon changes to “blue” (“no incoming call” in response to a change from “no incoming call for one day to three days”, “no incoming call for one week from three days”, “no incoming call for more than one week” # 0 ”),“ yellow ”(“ no incoming # 1 ”),“ pink ”(“ no incoming # 2 ”), and“ red ”(“ no incoming # 3 ”).

  As shown in FIG. 19, when an e-mail replyed from the mobile work machine 31 or automatically sent from the mobile work machine 31 is stored in the mailbox of the server terminal 21 (YES at step 401), the timer is reset ( In step 405), the icon of the mobile work machine 31 transitions to a “blue” display corresponding to “no incoming call # 0” (step 406).

  If the elapsed time since the timer is reset is less than one day (NO in Step 402), the icon of the mobile work machine 31 is displayed in a “blue” color corresponding to “No incoming call # 0”. Maintained (step 406).

  If the elapsed time after the timer is reset is longer than 1 day and within 3 days (determination YES in step 402, determination NO in step 403), the icon of the mobile work machine 31 is “no incoming call # 1”. "(Yellow)" corresponding to "" is displayed (step 407).

  If the elapsed time since the timer was reset is longer than 3 days and within one week (determination YES in step 403, determination NO in step 404), the icon of the mobile work machine 31 is “no incoming call # 2”. The display transitions to a “pink” display corresponding to “” (step 408).

  If the elapsed time since the timer was reset exceeds one week (YES at step 404), the icon of the mobile work machine 31 is displayed in “red” color corresponding to “no incoming call # 3”. A transition is made (step 409).

  When an e-mail replyed from the mobile work machine 31 or automatically transmitted by the mobile work machine 31 is stored in the mailbox of the server terminal 21 during the timer (time determination in step 401), the timer is reset (step 405). ), The icon of the mobile work machine 31 transitions to a “blue” color display corresponding to “no incoming call # 0” (step 406).

  In the above description, it is assumed that the time elapsed since the last incoming call from the mobile work machine 31 is displayed, but the other mobile bodies 32 to 35 are also displayed in the same manner. In addition, the time lapse since the last incoming call from each mobile unit 31, 32, 33, 34, 35 is also displayed on the other terminals 12.

  As described above, according to the present embodiment, it is possible to recognize the progress of the last incoming call from each of the mobile units 31 to 35 on the display screen of the terminal. It is possible to know management information about how new the moving body information is. When the mobile body (for example, the mobile body 31) is automatically transmitted at a regular cycle, the mobile body 31 automatically transmits from the display content of the elapsed time since the last incoming call from the mobile body 31. At this time, it is possible to determine whether or not some kind of communication failure has occurred.

  Next, an embodiment in which an elapsed time from when a request is made to a mobile unit until a response is made can be displayed, and whether or not communication is normally performed can be determined on the display screen of the terminal 11 is shown. This will be described with reference to FIG.

  That is, as shown in FIG. 20, as the time during which there is no response after the last request from the terminal 11 to the mobile work machine 31 is changed, that is, “no response within 1 minute”, “1 The icon of the mobile work machine 31 changes to “green” (“no response # 0” in response to a change from “no response for 3 minutes to 3 minutes”, “no response for 3 minutes to 10 minutes”, “no response for 10 minutes or more”. ”),“ Yellow ”(“ no response # 1 ”),“ pink ”(“ no response # 2 ”),“ red ”(“ no response # 3 ”). Further, in a state where there is no request from the terminals 11, 12,...

  As shown in FIG. 20, an e-mail requesting mobile body information is transmitted from the request source terminal 11 to the requesting mobile work machine 31, and in response to this, the request destination mobile work machine 31 returns a reply. When the received e-mail is stored in the mailbox (determination YES in step 501), the icon of the mobile work machine 31 transitions to a “blue” color corresponding to “no request” (step 506).

  When the reply e-mail from the requested mobile work machine 31 is not stored in the mailbox (NO in step 501), the process proceeds to the next step 502.

  In step 502, an e-mail requesting mobile body information is transmitted from the request source terminal 11 to the requesting mobile work machine 31 and stored in the mailbox addressed to the mobile work machine 31. It is determined whether there has been (step 502).

  If there is a request (determination YES in step 502), the timer is reset, and if the elapsed time since the timer was reset is within one minute (determination NO in step 503), the mobile work machine 31 The icon transitions to “green” display corresponding to “no response # 0” (step 507).

  When the elapsed time from the reset of the timer exceeds 1 minute and is within 3 minutes (determination YES in step 503, determination NO in step 504), the icon of the mobile work machine 31 is “no response # 1. "(Yellow)" corresponding to "" is displayed (step 508).

  If the elapsed time after the timer is reset is more than 3 minutes and less than 10 minutes (determination YES in step 504, determination NO in step 505), the icon of the mobile work machine 31 is “no response # 2. "Pink" color display corresponding to "" (step 509).

  If the elapsed time since the timer was reset exceeds 10 minutes (YES in step 505), the icon of the mobile work machine 31 is displayed in “red” color corresponding to “no response # 3”. A transition is made (step 510).

  If an e-mail returned from the requesting mobile work machine 31 is stored in the mailbox during the time of the timer (YES in step 501), the icon of the mobile work machine 31 corresponds to “no request”. Transition to the “blue” color (step 506).

  In the above description, it is assumed that the time elapsed from when a request is made to the mobile work machine 31 on the terminal 11 until the response is made is displayed, but the other mobile bodies 32 to 35 are similarly displayed. Is done. Also, in other terminals 12..., The passage of time since a request is made to each mobile unit 31, 32, 33, 34, 35 is displayed.

  As described above, according to the present embodiment, since the elapsed time from when a request is made to a mobile unit until a response is made is displayed, whether or not communication is normally performed is displayed on the terminal. Can be easily identified on the display screen.

  In the above description, as shown in FIG. 16A, the color of the entire icon of the mobile work machine 31 is changed and displayed in accordance with the communication state between the terminal 11 and the mobile work machine 31. , Icon color combinations, color schemes, fill patterns, etc. may be changed. Moreover, you may change structural elements other than a color.

  For example, as shown in FIG. 16B, the shape of the icon of the mobile work machine 31 may be changed and displayed according to the communication state between the terminal 11 and the mobile work machine 31. For example, if it is an icon of a hydraulic excavator, it is possible to change a position such as a position of a work machine and a roundness.

  Further, as shown in FIG. 16C, the size of the icon of the mobile work machine 31 may be changed and displayed according to the communication state between the terminal 11 and the mobile work machine 31. For example, in the case of “requesting” shown in FIG. 16C, the size of the icon of the hydraulic excavator changes circumferentially from large to medium to medium to large.

  Further, as shown in FIG. 16D, the movement of the icon of the mobile work machine 31 may be changed and displayed according to the communication state between the terminal 11 and the mobile work machine 31. For example, in the case of “no request” shown in FIG. 16C, the icon of the excavator stops, in the case of “requesting”, the icon of the excavator rotates, and in the case of “with reply”, If the icon of the excavator moves linearly and “no reply”, the excavator icon jumps.

  Further, the flashing pattern of the icon of the mobile work machine 31 may be changed and displayed according to the communication state between the terminal 11 and the mobile work machine 31. For example, it is conceivable to change the blinking cycle.

  Further, instead of changing the picture of the mobile work machine 31, an identification code such as a character for identifying the mobile work machine 31 may be changed. For example, it is conceivable to change the color of characters indicating the vehicle body number, nickname or the like of the mobile work machine 31 or blink the characters.

  As described above, for example, as a result of the processing shown in FIG. 15, a plurality of mobile work machines 31, 32, 33, 36, 37, 38 are displayed on the display screen on the terminal 11 as shown in FIG. The icon is displayed in association with the moving body information (“vehicle number”, “position”, “service meter”). In this case, as shown in FIG. 17A, the icons of the mobile work machines 31, 32, 33, 36, 37, and 38 can be displayed on the screen in a preset order.

  Further, as shown in FIG. 17B, the mobile work machines 31, 32, 33, 36, 37, and 38 are rearranged according to the communication state, so that the mobile work machine 31 corresponding to “requesting”. , 32 icons can be displayed at the top, and the icons of the work machines 33, 36, 37 corresponding to “no request” can be displayed at the bottom.

  Also, as shown in FIG. 17C, only the icons of the mobile work machines 31 and 32 corresponding to “requesting” are extracted from the icons of the mobile work machines 31, 32, 33, 36, 37, and 38. May be displayed.

  As described above, according to the present embodiment, the display content of the terminal is changed in accordance with the change of the communication state, so it is possible to prevent the work efficiency from being lowered due to the unknown communication state and to prevent the communication cost from increasing. Can do. Also, management information (how recently maintenance and inspection have been done recently) on how much the moving body information of each moving body is new can be obtained from the display screen.

  The embodiment in which the display content of the terminal is changed in accordance with the change in the communication state is not limited to the communication system shown in FIG. 1 and can be applied to any communication system. Any communication system that includes at least two communication stations and performs communication between the two communication stations is applicable.

  Next, an embodiment will be described in which useless power consumption in communication can be suppressed by intermittently turning off the power supply itself on the mobile bodies 31 to 35 side.

  A mobile work machine such as a construction machine has a long time period when the engine is not operating (that is, a time period when the power is turned off).

  In FIG. 21, if the battery 63 (rated voltage 24V), which is a power source, and the communication terminal 56 are always electrically connected even when the engine is turned off, the battery 63 is a generator because the engine is not operated. Not charged by (alternator). For this reason, the battery 63 is rapidly discharged. On the other hand, if the electrical connection between the battery 63 and the communication terminal 56 is always turned off while the engine is turned off, communication with the plurality of terminals 11, 12. For this reason, when there is a request for mobile object information from the terminals 11, 12,.

Therefore, the embodiment described below enables communication between a plurality of terminals 11, 12, etc. while the engine is off, even in the case of a mobile unit 31-35 such as a construction machine where the engine is not operating for a long time. In addition to being able to respond to requests from the terminals 11, 12,..., It is possible to suppress wasteful power consumption.
FIG. 21 shows the configuration of this embodiment.

  As described with reference to FIG. 2, the communication terminal 56 is provided in the vehicle body of the mobile work machine 31. The power terminal of the communication terminal 56 is electrically connected to the battery 63. A main power supply circuit is provided in the communication terminal 56, and power is consumed by supplying power from the battery 63 to the main power supply circuit. In the communication terminal 56, an internal program (software timer) is stored or an internal power supply circuit (hardware timer) is incorporated, whereby the drive of the main power supply circuit is intermittently turned on and off, and periodically. The main power supply circuit operates to save power.

  The level of the engine key switch signal S1 input to the sleep control terminal of the communication terminal 56 is monitored by software, and the main power supply circuit is forced when the main power supply circuit of the communication terminal 56 is off when it is an ON signal. The process of driving is performed. Further, the main power supply circuit may be driven in hardware.

  That is, when the engine key switch signal S1 OFF signal (logic “0” level signal) is input to the sleep control terminal of the communication terminal 56, the electrical connection between the main power supply circuit in the communication terminal 56 and the battery 63 is achieved. Connection is turned on and off at a predetermined duty ratio, the drive of the main power supply circuit is turned on and off, the activation of the communication terminal 56 is turned on and off, and communication processing is performed at a constant cycle (the sleep function of the communication terminal 56 is on).

  The main power supply circuit in the communication terminal 56 and the battery 63 are electrically connected in response to an ON signal (logic “1” level signal) of the engine key switch signal S 1 being input to the sleep control terminal of the communication terminal 56. Then, the main power supply circuit is driven, the communication terminal 56 is activated and communication processing is performed (the sleep function of the communication terminal 56 is turned off (forced release)). Therefore, the communication terminal 56 is always activated while the engine is on.

On the other hand, the power terminal of the communication controller 54 is electrically connected to the battery 63 via the engine key switch 64. As the engine key switch 64 is turned off, the electrical connection between the communication controller 54 and the battery 63 is cut off and the operation of the engine of the mobile work machine 31 is stopped.
When the engine key switch 64 is turned on, an ON signal (logic “1” level signal) of the engine key switch signal S 1 is output from the communication controller 54 to the sleep control terminal of the communication terminal 56.

  Next, processing performed in the communication terminal 56 will be described with reference to a timing chart shown in FIG.

7A shows the operation signal S1 of the engine key switch 64, and FIG. 7B shows the communication state between the communication terminal 56 and the communication satellite 9. FIG. Communication in progress is indicated by a logic “1” level. FIG. 7C shows the activation state of the communication terminal 56. A logic “1” level corresponds to an activation state (power saving operation is off), and a logic “0” level corresponds to an activation off (sleep) state (power saving operation is on). The activation of the communication terminal 56 is intermittently turned on and off at a duty ratio D (= (τ / T) × 100%). When the power saving operation is turned off and the communication terminal 56 is activated, movement of the current position, service meter value, remaining fuel amount, battery voltage, vehicle body error code, etc. from the communication terminal 56 to the communication satellite 9 as necessary A signal indicating body information is transmitted.

  As shown in FIG. 7, the communication terminal 56 is always activated when the engine key switch signal S1 is kept on.

  When the engine key switch signal S1 is switched from on to off, the activation of the communication terminal 56 is intermittently turned on and off at a duty ratio D (= (τ / T) × 100%) as indicated by an arrow a ( Sleep function is on).

  8B is a timing chart showing ON / OFF of the power saving operation corresponding to FIG. 7C, and FIG. 8C shows the transmission state of the call signal from the communication satellite 9 to the communication terminal 56. Show. A logic “1” level indicates that transmission is in progress.

  As shown in these figures, within a certain time (starting cycle) T, there is always a starting time τ, that is, a time during which data can be transmitted to and received from the communication satellite 9 (see the diagonal lines in FIG. 8C). The expected value of the communication response time is T / 2 (average is T / 2). Further, power consumption can be suppressed to τ / T. In order to enable transmission / reception between the communication terminal 56 and the communication satellite 9 operating in power saving at the activation cycle T, a signal is continuously transmitted from the communication satellite 9 to the communication terminal 56 for a period of time T or more. (See FIGS. 8B and 8C). The activation period T is determined according to the urgency of communication and the safety factor with respect to the duration of the signal transmitted from the communication satellite 9.

  In addition, the activation time τ needs to be more than the time required for the transmission / reception procedure. However, the smaller the startup time τ, the greater the power saving effect.

  As described above, by periodically starting the communication terminal 56 at a period of T, the expected value of the communication response time can be ensured and power consumption can be suppressed.

  However, even if the engine key switch signal S1 is switched from on to off as shown in FIG. 7, if communication is being performed between the communication terminal 56 and the communication satellite 9 as shown by the arrow c, it is shown by the arrow d. In this way, the sleep function is turned on from the time when communication is completed.

  When the engine key switch signal S1 is switched from OFF to ON, the sleep function is forcibly released as indicated by an arrow b.

  As described above, according to this embodiment, when the engine is operated, the sleep function is forcibly canceled and the communication terminal 56 is always activated while the engine is operating. It is possible to transmit mobile body information such as abnormalities, and to ensure safety. Further, even if the engine stops operating, if communication is in progress, the communication terminal 56 remains activated until the communication is completed, so that communication can be performed reliably.

  The duty ratio D can be changed according to the terminal voltage of the battery 63.

  The voltage of the battery 63 is input to the battery voltage input circuit, and the duty ratio D changes according to the characteristics shown in FIG.

  That is, as the voltage of the battery 63 becomes lower, the duty ratio D becomes smaller and the starting cycle T becomes longer, and further reduction in the voltage of the battery 63 is suppressed.

  Further, with the same characteristics as those shown in FIG. 8A, the duty ratio D is decreased and the starting cycle T is lengthened as the engine operating time is shortened, so that the further decrease in the voltage of the battery 63 is suppressed. It may be. The operating time of the engine is obtained from the increased value of the service meter. The continuous operation time of the engine before the sleep function is turned on (before the intermittent power saving operation is started) is obtained from the increased value of the service meter, and the duty ratio D changes according to the continuous operation time. . In this case, it is not necessary to provide a battery voltage input circuit.

  According to the configuration shown in FIG. 21 described above, since the power saving operation is performed by the processing in the communication terminal 56, there is an advantage that it is not affected by other devices or wiring abnormality. The configuration shown in FIG. 22 may be adopted instead of the configuration of FIG. That is, a device other than the communication terminal 56, for example, the communication controller 54, has a power saving operation control function when the engine key switch 64 is turned off, and the communication controller 54 makes electrical connection between the communication terminal 56 and the battery 63. On / off control may be performed intermittently.

  That is, as shown in FIG. 22, the power terminal of the communication terminal 56 is electrically connected to the battery 63 via the power switch 65. As the power switch 65 is turned off, the electrical connection between the communication terminal 56 and the battery 63 is cut off.

  On the other hand, the power terminal of the communication controller 54 is electrically connected to the battery 63. Further, the operation signal S 1 of the engine key switch 64 is input to the communication controller 54. In addition, a signal S 3 indicating a communication state is input from the communication terminal 56 to the communication controller 54. If the communication terminal 56 is communicating with the communication satellite 9, the communication status signal S3 is at the logic “1” level.

  A software timer is stored in the communication controller 54 or a hardware timer is incorporated, and a power switch drive signal S 2 is output to the power switch 65.

  The communication controller 54 executes the same processing as described in FIG.

  7A shows the operation signal S1 of the engine key switch 64 input to the communication controller 54, and FIG. 7B shows the communication status signal S3 input from the communication terminal 56 to the communication controller 54. (C) shows the power switch drive signal S2 output from the communication controller 54 to the power switch 65.

  Therefore, similarly to the configuration shown in FIG. 21, if the engine is stopped (signal S1 is off), the activation of the communication terminal 56 is controlled to be turned on and off at a predetermined duty ratio D (signal S2 is turned on and off). . If the engine is operated (signal S1 is ON), the sleep function is forcibly canceled and the communication terminal 56 is always activated while the engine is operating (signal S2 is ON). Even if the engine stops operating, if communication is in progress (S3 is on), the communication terminal 56 remains activated until communication is completed (S2 is on).

  Similarly, the duty ratio D can be changed according to the terminal voltage of the battery 63 and the operating time of the engine.

  Various modifications can be made to the above embodiment. Hereinafter, FIGS. 13, 23, 24, and 25 will be described.

  The duty ratio D may be changed according to the position information of the mobile work machine 31.

  FIG. 23 shows an embodiment in which the duty ratio D is changed according to the relative movement distance with respect to the setting range of the mobile work machine 31.

  FIG. 23A shows a state in which the start cycle T is shortened and the tee ratio D is increased as the mobile work machine 31 deviates from the setting range 117 on the map.

  In other words, a general automobile or the like is mostly moved by self-propelled. On the other hand, in the mobile work machine 31 such as a construction machine, there are few situations in which it travels a long distance by self-propelling, and in most cases, the operation of the engine of the own vehicle is stopped and the vehicle is moved while being loaded on a trailer. To do. In this case, the mobile work machine 31 is not necessarily loaded and transported on the trailer 35 managed on the terminal 11 side, but the mobile work machine 31 is stolen and loaded on an unmanaged trailer, illegally to overseas or the like. It may be taken out. Further, there is a possibility that the mobile work machine 31 is brought into the work site that is inadvertently transported by the trailer 35 and is not permitted by the government without permission.

  Therefore, when the operation of the engine of the mobile work machine 31 is stopped, the movement position of the mobile work machine 31 is displayed on the terminal 11 in response to a request from the terminal 11 while suppressing power consumption accompanying communication. It is necessary to manage and monitor the movement trajectory of the mobile work machine 31.

  Therefore, on the map of the display screen of the terminal 11, a predetermined range 117 where the mobile work machine 31 will be present if normal is set. The setting range 117 is, for example, a management area in charge of the administrator on the terminal 11 side, a work site authorized by the government, or the like.

  The activation of the communication terminal 56 of the mobile work machine 31 is intermittently turned on and off at a predetermined duty ratio D (= (τ / T) × 100%) as shown in FIG. Then, as shown in FIG. 7C, at the timing when the power saving operation is turned off (the power switch drive signal S2 is turned on) and the communication terminal 56 is activated, the communication terminal 56 sends a communication satellite in response to a request from the terminal 11. 9 is transmitted with a signal indicating the current position (in addition, mobile body information such as service meter value, remaining fuel amount, battery voltage, and vehicle body error code may be included). Thereby, the sequential movement position of the mobile work machine 31 is displayed on the terminal 11 which is the display destination terminal.

The position of the mobile work machine 31 is detected by the GPS sensor 57 as shown in FIG. In this case, if the power consumption of the GPS measurement device (GPS antenna 59, GPS sensor 57, communication controller 54) is small, these GPS measurement devices can be directly connected to the battery 63 and operated constantly. Further, when the power consumption of these GPS measuring devices is large, the sleep function is turned on to turn on / off the power saving operation in the same manner as the communication terminal 56, and the power saving operation is turned on (the activation of the communication terminal 56). The position may be measured only by operating the GPS measuring device.
In the mobile work machine 31, the position detected by the GPS sensor 57 is compared with the boundary position of the setting range 117, and processing for changing the activation period T according to the comparison result is executed.

  FIG. 23 (d) shows a state in which the activation cycle T changes according to the relative position (time elapse) with respect to the setting range 117 of the mobile work machine 31.

  As shown in FIG. 23A, when the mobile work machine 31 exists at positions A and B within the normal setting range 117, the activation cycle T is the maximum cycle T1.

  However, when the mobile work machine 31 reaches the boundary position C of the normal setting range 117, it is determined that an abnormal situation has occurred by deviating from the normal range (theft occurrence, movement outside the permitted area), and detailed information on the movement trajectory Therefore, the activation cycle T is a cycle T2 shorter than the maximum cycle T1 (see FIG. 23D).

  When the mobile work machine 31 reaches a position D that is further separated from the boundary position of the normal setting range 117 by a predetermined distance L0, the activation cycle T is greater than the cycle T2 in order to obtain more detailed information on the movement trajectory. Further, the cycle T3 becomes shorter (see FIG. 23D). Thereafter, as the separation distance from the normal setting range 117 increases, the activation period T can be sequentially shortened to T4 (<T3)... To finally become the period 0 (duty ratio D = 1).

  As shown in the graph of FIG. 23C, the activation cycle T may be continuously shortened as the separation distance L with respect to the boundary position of the normal setting range 117 increases.

  As the activation cycle T of the communication terminal 56 becomes shorter, the response to the request from the terminal 11 becomes faster. As will be described later, when the mobile work machine 31 performs automatic transmission, the transmission interval of the mobile body information called position information is shortened.

  Therefore, as the mobile work machine 31 moves away from the normal setting range 117, the display screen of the terminal 11 that is the display destination terminal has a more detailed movement locus (the time interval between the displayed movement positions is displayed. (Short movement trajectory) will be displayed. For this reason, it is possible to quickly and accurately cope with abnormal situations such as theft and movement outside the permitted area. In addition, since the duty ratio D of the on / off activation of the communication terminal 56 is increased as the mobile work machine 31 moves away from the normal setting range 117, the power consumption associated with the communication is reduced and an abnormal situation is caused. Can be monitored accurately.

  FIG. 23B shows a state in which the start cycle T is shortened and the teaty ratio D is increased as the mobile work machine 31 enters the setting range 118 on the map.

  Similarly to FIG. 23A, a predetermined range 118 on which the mobile work machine 31 will not be brought in if normal is set on the map of the display screen of the terminal 11. The setting range 118 is an abnormal area, for example, an overseas port of a theft destination, a dangerous work area, an illegal work area such as a nature protection area, or the like.

  In the mobile work machine 31, the position detected by the GPS sensor 57 is compared with the boundary position of the setting range 118 in the same manner as described with reference to FIG. 23A, and the activation cycle T is determined according to the comparison result. A process of changing is performed.

  FIG. 23 (d) shows a state in which the activation cycle T changes according to the relative position (time elapse) with respect to the setting range 118 of the mobile work machine 31.

  As shown in FIG. 23B, when the mobile work machine 31 is present at positions A and B outside the abnormal setting range 118, the activation cycle T is the maximum cycle T1.

  However, when the mobile work machine 31 reaches the boundary position C of the abnormal setting range 118, it is determined that an abnormal situation has occurred (theft occurrence, intrusion into the dangerous area), and in order to obtain detailed information on the movement trajectory, the start cycle T is a period T2 shorter than the maximum period T1 (see FIG. 23D).

  When the mobile work machine 31 reaches a position D that has further entered a predetermined distance L0 from the boundary position of the abnormal setting range 118, the activation cycle T is longer than the cycle T2 in order to obtain more detailed information on the movement trajectory. Further, the cycle T3 becomes shorter (see FIG. 23D). Thereafter, as the intrusion distance into the abnormal setting range 118 increases, the activation cycle T can be sequentially shortened to T4 (<T3)... And finally the cycle 0 (duty ratio D = 1).

  As shown in the graph of FIG. 23C, the activation cycle T may be continuously shortened as the distance L to the boundary position of the abnormal setting range 118 increases.

  As the mobile work machine 31 enters the abnormal setting range 118 in this way, the display screen of the terminal 11 that is the display destination terminal has a more detailed movement locus (the time interval between the displayed movement positions is displayed. (Short movement trajectory) will be displayed. For this reason, it is possible to quickly and accurately cope with abnormal situations such as theft and intrusion of dangerous areas. In addition, since the duty ratio D of the on / off activation of the communication terminal 56 is increased as the mobile work machine 31 enters the abnormal setting range 118, the power consumption associated with communication is suppressed and at the same time, Accurate monitoring can also be performed.

  Note that the present invention is not limited to the monitoring of abnormal situations assumed in FIGS. 23A and 23B, and can also be applied to monitoring a route from when the mobile work machine 31 is disposed to being disposed.

  In the embodiment shown in FIGS. 23A and 23B, the activation period T is uniquely determined only from the distance L with respect to the boundary line of the setting ranges 117 and 118. The activation period T may be determined in consideration of surrounding geographical information, the type of the moving object, the usage period of the moving object, and the like.

  Further, as shown in FIG. 24, the duty ratio D may be changed in accordance with the position change amount of the mobile work machine 31.

  The activation of the communication terminal 56 of the mobile work machine 31 is intermittently turned on and off at a predetermined duty ratio D (= (τ / T) × 100%) as shown in FIG. Then, as shown in FIG. 7C, at the timing when the power saving operation is turned off (the power switch drive signal S2 is turned on) and the communication terminal 56 is activated, the communication terminal 56 sends a communication satellite in response to a request from the terminal 11. 9 is transmitted with a signal indicating the current position (in addition, mobile body information such as service meter value, remaining fuel amount, battery voltage, and vehicle body error code may be included). Thereby, the sequential movement position of the mobile work machine 31 is displayed on the terminal 11 which is the display destination terminal.

  The position of the mobile work machine 31 is detected by the GPS sensor 57 as shown in FIG. In this case, if the power consumption of the GPS measurement device (GPS antenna 59, GPS sensor 57, communication controller 54) is small, these GPS measurement devices can be directly connected to the battery 63 and operated constantly. Further, when the power consumption of these GPS measuring devices is large, the sleep function is turned on to turn on / off the power saving operation in the same manner as the communication terminal 56, and the power saving operation is turned on (the activation of the communication terminal 56). The position may be measured only by operating the GPS measuring device.

  The mobile work machine 31 compares the current position detected by the GPS sensor 57 at the time of this activation with the boundary position of the circles 119, 120... Having a radius S centered on the position detected at the time of the previous activation. A process of changing the activation cycle T according to the comparison result is executed.

  FIG. 24 (b) shows how the activation cycle T changes depending on whether or not the mobile work machine 31 has escaped from the circles 119, 120.

  As shown in FIG. 24A, the position A of the mobile work machine 31 is first detected by the GPS sensor 57, and a circle 119 having a radius S (km) centered on the position A is set on the map. The initial activation cycle T is set to the maximum cycle T1. For this reason, the communication terminal 56 is started after the period T1. Assume that the position detected by the GPS sensor 57 at that time is a position B inside the circle 119. In this case, the activation cycle T is left at the maximum cycle T1. Further, it is assumed that the communication terminal 56 is activated after the period T1, and the position detected by the GPS sensor 57 at that time is a position C outside the circle 119. In this case, a circle 120 having a radius S (km) centered on the position C is set on the map, and the activation period T is changed to a period T2 shorter than the maximum period T1.

  For this reason, the communication terminal 56 is started after the period T2. Assume that the position detected by the GPS sensor 57 at that time is a position D inside the circle 120. In this case, the activation cycle T is left as the cycle T2. Furthermore, it is assumed that the communication terminal 56 is activated after the period T2, and the position detected by the GPS sensor 57 at that time is a position E outside the circle 120. In this case, a circle 121 having a radius S (km) centered on the position E is set on the map, and the activation period T is changed to a period T3 shorter than the period T2. Furthermore, it is assumed that the communication terminal 56 is activated after the period T3, and the position detected by the GPS sensor 57 at that time is a position F outside the circle 121. In this case, a circle 122 having a radius S (km) centered on the position F is set on the map, and the activation period T is changed to a period T4 shorter than the period T3. For this reason, the communication terminal 56 is started after the period T4. Assume that the position detected by the GPS sensor 57 at that time is a position G inside the circle 122. In this case, the activation cycle T is returned from the cycle T4 to a longer cycle T3 (see FIG. 24B).

  In the embodiment shown in FIG. 24A, the area of circles 119, 120... With radius S is set, but instead, a square area with S on one side may be set.

  In the case of a square area, when the current position detected by the GPS sensor 57 at the current start-up is compared with the boundary position of the area centered on the position detected at the previous start-up, complicated calculation processing is performed. Even if it is not performed, there is an advantage that it is possible to easily determine whether or not it is out of the area by subtracting the latitude and longitude on the map.

  Further, the areas 119, 120... Shown in FIG. For example, it may be an ellipse or rectangular area that is long in either of the latitude and longitude directions. Moreover, it is good also as an ellipse and a rectangle long in the direction which the mobile work machine 31 advances. In this case, it can be determined more accurately and earlier whether or not the mobile work machine 31 has escaped from the area.

  In addition, the size of the areas 119, 120..., Specifically, the radius S (km) may be changed according to the amount of movement in the case of a circular area.

  Thus, in the case of FIG. 24, the activation cycle T is equivalently shortened as the moving speed of the mobile work machine 31 increases, and a more detailed movement trajectory ( A movement trajectory with a short time interval between the displayed movement positions) is displayed. For this reason, the situation where the work is completed at a certain work site and the mobile work machine 31 is moving to the next work site can be accurately grasped on the terminal 11 side. For this reason, the work efficiency of process management and transportation management is dramatically improved. Moreover, since the duty ratio D of the on / off of the communication terminal 56 is increased as the moving speed of the mobile work machine 31 increases, accurate monitoring during movement and suppression of power consumption accompanying communication are simultaneously performed. Can be realized.

In the embodiment shown in FIG. 24, the activation cycle T is changed according to whether or not the sequentially set areas 119, 120... Have been exceeded, but as shown in the graph of FIG. May be calculated for each activation cycle T, and the activation cycle T may be changed according to the magnitude of the calculation velocity V.
In the embodiment shown in FIG. 25, the position of the mobile work machine 31 is detected by the GPS sensor 57 every time the communication terminal 56 is activated, as in the embodiment of FIG.

And the following formula:
V = (detection position at the time of current activation−detection position at the time of previous activation) / current activation cycle T
Is used to calculate the moving speed V.

  The relationship between the moving speed V and the activation cycle T is shown in the graph of FIG. When the moving speed V is sufficiently low, that is, below the speed V1 (= 3 km / h), the activation period T is set to the maximum period T1 (= 10 minutes). As the moving speed V increases from V1 to the cruising speed V2 (= 50 km / h) when transported by the trailer, the activation cycle T becomes shorter. When the moving speed V reaches the cruising speed V2, the activation cycle T is 0 (duty ratio D is 1), that is, the communication terminal 56 is continuously activated.

  The activation cycle T is determined by obtaining the activation cycle T corresponding to the moving speed V obtained according to the above arithmetic expression from the graph shown in FIG.

  For this reason, as the moving speed V of the mobile work machine 31 increases, the activation cycle T is shortened, and the display screen of the terminal 11 that is the display destination terminal displays more detailed movement trajectories (between the displayed movement positions). A movement trajectory with a short time interval) is displayed. For this reason, the situation where the work is completed at a certain work site and the mobile work machine 31 is moving to the next work site can be accurately grasped on the terminal 11 side. Further, at the cruising speed V2 of the transport vehicle (trailer) 35, the communication terminal 56 is continuously activated and the moving position of the mobile work machine 31 is always displayed. The situation where the machine 31 is loaded and traveling can be constantly monitored on the display screen of the terminal 11. For this reason, the work efficiency of process management and transportation management is dramatically improved. Moreover, since the duty ratio D of the on / off of the communication terminal 56 is increased as the moving speed of the mobile work machine 31 increases, accurate monitoring during movement and suppression of power consumption accompanying communication are simultaneously performed. Can be realized.

  In the embodiment described above, the communication terminal 56 is activated intermittently at a predetermined period T. However, the communication terminal 56 may be activated intermittently every time a specific time is reached.

  For example, the communication terminal 56 can be activated at a specific time when communication between the communication satellite 9 and the mobile work machine 31 is satisfactorily performed. This specific time corresponds to the position (altitude) of the communication satellite 9.

  FIG. 13A shows the positional relationship between the communication satellite 9 and the mobile work machine 31. A communication path (wireless communication line 5) between the communication satellite 9 and the mobile work machine 31 includes communication obstacles 123 such as mountains and buildings.

  When the altitude of the communication satellite 9 is high (when the maximum elevation angle is large), the communication failure due to the obstacle 123 is reduced and the communication state is improved. Therefore, when the altitude of the communication satellite 9 is high, the communication terminal 56 is activated and communication with the communication satellite 9 is performed.

  However, in order to activate the communication terminal 56, it is necessary to store and store information on the flying position of the communication satellite 9 on the mobile work machine 31 side.

  The flight position information of the communication satellite 9 varies from day to day. For this reason, if flight position information for all dates is stored and stored in the memory of the mobile work machine 31, problems such as insufficient memory capacity and memory occupancy will occur.

  Therefore, in the present embodiment, as shown in FIG. 13A, the flying position information 124 having a predetermined amount of information is transmitted from the communication satellite 9 to the mobile work machine 31 via the wireless communication line 5.

  A clock is provided inside the communication terminal 56 of the mobile work machine 31. Therefore, it is determined whether or not the communication terminal 56 is to be activated by matching the received flight position information 124 with the time measured by the clock.

  FIG. 13B shows the flight position information of the communication satellite 9 on a certain date.

  In FIG. 13B, “AOS” indicates the time and azimuth angle at which the communication satellite 9 appears on the horizon, “MEL” indicates the time and azimuth angle when the communication satellite is at the maximum elevation angle, and “LOS” indicates the communication satellite. 9 shows the time and azimuth angle at which it disappears on the horizon. The path of the communication satellite 9 corresponding to the enclosed part is shown in FIG.

  At the communication terminal 56 of the mobile work machine 31, the time at which the maximum elevation angle equal to or greater than a predetermined threshold (for example, 45 degrees) is obtained from the flying position information 124 shown in FIG. At the obtained time 4:33, 16:28, processing for starting the communication terminal 56 is executed. That is, at the specific times 4:33, 16:28, the main power supply circuit of the communication terminal 56 is driven, and a signal indicating mobile information is transmitted to the communication satellite 9 via the wireless communication line 5.

  As for the flying position information 124, new data is transmitted from the communication satellite 9 to the mobile work machine 31 via the wireless communication line 5 at the specific time, for example, every day. As a result, the contents of the flying position information 124 stored in the memory of the mobile work machine 31 are updated.

  As described above, according to the embodiment shown in FIG. 13, the communication terminal 56 is activated each time a specific time at which the communication between the communication satellite 9 and the mobile work machine 31 is satisfactorily performed. Thus, power saving can be achieved, and communication between the communication satellite 9 and the mobile work machine 31 can be performed reliably. Further, since the flying position information 124 is received from the outside by communication, the problem of insufficient memory capacity and memory occupancy does not occur on the mobile work machine 31 side.

  In the above-described embodiment, the communication terminal 56 is intermittently activated at a predetermined period T. However, the activation period T can be arbitrarily changed from the terminal 11 on the administrator side, for example. In this case, as described above, an electronic mail in which change data for changing the activation cycle T is described from the terminal 11 is transmitted to the mobile work machine 31 with the mobile work machine 31 as a mail address. Then, the change data described in the e-mail is read out at the communication terminal 56 of the transmission destination mobile work machine 31, and the activation cycle T is changed according to the contents of the change data.

  For example, when the service meter of the mobile work machine 31 exceeds a predetermined value (when it is aged), the start cycle T is shortened in order to frequently monitor the state at short intervals, and the loan is given to a specific user ( When there is no need for monitoring) or when the vehicle has been idle for a long time (when it is clear that it has stopped operating), it is started to increase the monitoring interval and reduce unnecessary power consumption and communication charges. The period T is lengthened. It should be noted that a plurality of moving bodies that are working and traveling in groups can be changed to the same activation period T at the same time.

  As described above, according to the present embodiment, on the terminal 11 side, the activation cycle T can be changed by remote operation while monitoring the situation of the moving body and the surrounding situation. For this reason, it is not necessary for the operator to go to each of the moving bodies 31, 32,... To change the activation cycle T, and the work load is greatly reduced.

  As described above, according to the present embodiment, even between the mobile bodies 31 to 35 such as construction machines where the engine is not operating for a long time, communication with the plurality of terminals 11, 12. It is possible to respond to requests from the terminals 11, 12,... And to reduce wasteful power consumption. Further, as shown in FIG. 7C, the electrical connection between the battery 63 and the communication terminal 56 is intermittently turned on and off (duty ratio D = (τ / T) × 100%) A connection ON state is not generated in response to reception of a request signal from the terminals 11, 12. For this reason, it becomes possible to transmit mobile body information from the mobile work machine 31 side even when the engine is stopped.

  The embodiment in which the power supply for communication is intermittently turned on is not limited to the communication system shown in FIG. 1 and can be applied to any communication system. Any communication system that includes at least two communication stations and performs communication between the two communication stations is applicable.

  By the way, in the above-described embodiment, only when there is a request for mobile body information from a request source terminal (eg, terminal 11) to a request destination mobile body (eg, mobile work machine 31), a display destination terminal (eg, terminal) 12) It is assumed that moving body information is displayed.

  In the embodiment described below, even when there is no request from the terminal side, if the parameter has a specific value inside the mobile body, the specific mobile body information is voluntarily transmitted and the specific mobile body is transmitted to the terminal side. Information is displayed.

  According to this embodiment, it is possible to recognize an abnormal situation (for example, theft, failure, etc.) that has occurred in a mobile body that cannot be managed and monitored at all times on the terminal side, or to accurately grasp the operating state and the resting state of the mobile body. It becomes possible to do.

  Now, as shown in FIG. 2, it is assumed that an internal parameter of the mobile work machine 31, for example, an engine start state is detected by a predetermined sensor (for example, a sensor that detects the voltage value of the alternator) in the sensor group 62. The detection signal of this sensor is described in the frame signal by the electronic control controller 53 as described above, and is sent to the signal line 52 and then input to the communication terminal 56 via the communication controller 54. As long as the communication terminal 56 can monitor the on / off state of the engine, a known technique other than this method may be used.

  FIG. 26A shows a signal indicating the engine start state input to the communication terminal 56 of the mobile work machine 31. FIG. 26 (a) shows the engine start state at each time t of the mobile work machine 31 on one day (from time 6:00 to the next 6:00), and the logic “1” level indicates that the engine is operating (starting). The logic “0” level corresponds to the state where the engine is stopped.

  The automatic transmission from the mobile work machine 31 can be performed at the timing of each engine start, for example, as shown in FIG.

  That is, as shown in FIG. 26 (a), when the engine is started at time t1 and a signal indicating that the engine has been started is input to the communication terminal 56, this signal is used as a trigger to specify as indicated by an arrow e. The mobile body information, that is, for example, the current position of the mobile work machine 31 is captured in an electronic mail and transmitted to the communication satellite 9 as an electronic mail. The destination mail address of this electronic mail is the server terminal 21. When the communication terminal 56 is in the sleep state due to the power saving operation described above, it is transmitted after the engine is started and forcibly activated.

  Therefore, assuming that the server terminal 21 is a terminal on the manager side, a sequential position every time the engine is started in the mobile work machine 31 is displayed on the display screen of the terminal 21 on the manager side. Therefore, the administrator can grasp the history of the position every time the engine is started by the mobile work machine 31 on the display screen without performing the request input operation himself, and the mobile work machine 31 that cannot be managed and monitored constantly. Thus, it is possible to recognize an abnormal situation (for example, theft) that occurs, and to accurately grasp the operating state and the resting state of the mobile work machine 31.

  Alternatively, the mobile work machine 31 may send an e-mail with the other terminals 11, 12, etc. as destination mail addresses.

  Further, the automatic transmission from the mobile work machine 31 may be performed at the first engine start timing of the day as shown in FIG.

  That is, as shown in FIG. 26A, when the engine is started at time t1, a start signal indicating that the engine has been started is input to the communication terminal 56. Here, a clock is provided in the communication terminal 56, and whether or not the start signal is a signal input first in one day (from time 6:00 to the next time 6:00). Is judged. Only when it is determined that the input start signal is the start signal input first in the day, the current position of the mobile work machine 31 is e-mailed as indicated by an arrow f using the start signal as a trigger. Is transmitted to the communication satellite 9 as an electronic mail. Therefore, similarly, the history of the position of the mobile work machine 31 is displayed on the terminal on the manager side. According to this embodiment, compared with the case of FIG.26 (b), since the space | interval of automatic transmission becomes at least every day, communication cost can be held down.

  The automatic transmission is performed only when the engine is started for the first time in one day, but the period can be arbitrarily set, for example, only when the engine is started for the first time in one week. Automatic transmission may be performed.

  In addition, as shown in FIG. 26 (d), automatic transmission from the mobile work machine 31 is performed at the timing of engine start in a specific time zone of the day (for example, time 18: 00 to 6:00). Also good.

  That is, as shown in FIG. 26A, when the engine is started at time t4 in the time zone of 18:00 to 6:00, and a signal indicating that the engine has been started is input to the communication terminal 56. The current position of the mobile work machine 31 is taken into an e-mail and transmitted to the communication satellite 9 as an e-mail as indicated by an arrow i using this signal as a trigger. Accordingly, similarly, the history of the position of the mobile work machine 31 in the specific time zone is displayed on the administrator side terminal. Here, a specific time zone (nighttime) of time 18: 00 to 6:00 is a time zone in which a mobile work machine such as a construction machine is not normally operated. It is a time when there is no long-term movement. The fact that the engine is started and the mobile work machine 31 has moved in this specific time zone may cause some anomaly such as theft. Since the history of the position of the mobile work machine 31 in a specific time zone is displayed on the terminal on the manager side, monitoring the display screen has caused some change in the mobile work machine 31 such as theft. Can be judged.

  Further, the automatic transmission from the mobile work machine 31 may be performed at the timing of engine stop due to abnormality as shown in FIG.

  Here, as shown in FIG. 2, an abnormality that has occurred in the mobile work machine 31, for example, “the engine speed is high”, “the exhaust temperature of the engine is high”, “the temperature of the cooling water is high”, “the battery voltage is low ”And“ abnormal amount of fuel ”are detected by a predetermined sensor in the sensor group 62. The detection signal of this sensor is described as an error code (for example, “abnormal item: small amount of fuel”) in the frame signal by the electronic controller 53 as described above, and is sent to the signal line 52 via the communication controller 54. Input to the communication terminal 56. As long as the abnormality of the vehicle body can be monitored by the communication terminal 56, a known technique other than this method may be used.

  As shown in FIG. 26A, when the operation of the engine is stopped at time t2, a stop signal indicating that the engine has been stopped is input to the communication terminal 56. Here, the error code is input to the communication terminal 56. Then, it is determined whether or not a stop signal and an error code are input simultaneously. When the stop signal and the error code are input at the same time, it is determined that the engine has stopped due to an abnormality (failure), and the current position of the mobile work machine 31 is indicated by the arrow g using this stop signal as a trigger. Is taken into the electronic mail and transmitted to the communication satellite 9 as an electronic mail. Therefore, similarly, the position of the mobile work machine 31 is displayed on the terminal on the manager side. According to the present embodiment, since the position of the mobile work machine 31 is displayed on the terminal side only when an abnormality is detected and the engine is stopped, it is possible to accurately grasp the position at the time of occurrence of the abnormality. . Therefore, it is possible to quickly cope with the abnormality and to minimize the damage to the mobile work machine 31.

  Also, it does not automatically send out when an abnormality occurs, but only when a specific abnormality item (severe abnormality item) is set in advance and an abnormal item (error code) is set in advance. Automatic transmission may be performed.

  Further, the automatic transmission from the mobile work machine 31 may be performed at the timing of engine start by eliminating the abnormality as shown in FIG.

  That is, as shown in FIG. 26A, when the engine is started at time t3, a start signal indicating that the engine has been started is input to the communication terminal 56. Here, the error code is input to the communication terminal 56. When a service person or the like performs a predetermined treatment for the abnormality and the abnormality (failure) is resolved, the error code is not input to the communication terminal 56. In the communication terminal 56, it is determined whether or not the engine has been started when the error code is not input. When the engine is started when the error code is no longer input, it is determined that the abnormality (fault) has been resolved and the engine has been started, and this start signal is used as a trigger to indicate the arrow h, The current position of the mobile work machine 31 is captured in an electronic mail and transmitted to the communication satellite 9 as an electronic mail. Therefore, similarly, the position of the mobile work machine 31 is displayed on the terminal on the manager side. According to this embodiment, since the position of the mobile work machine 31 is displayed on the terminal side only when the abnormality is resolved and the engine is started, the position at the time when the abnormality is appropriately treated is accurately grasped. be able to.

  Also, at a specific time (for example, time 23:00) from the mobile work machine 31, specific mobile body information, for example, an operation map from time 23:00 to the time 23:00 of the day (Memory shown) may be automatically transmitted. Accordingly, as shown in FIG. 30, a daily operation map is displayed on the display screen on the terminal side.

  Further, specific mobile body information may be automatically transmitted from the mobile work machine 31 at a specific time every several days (for example, every 3 days at 23:00).

  In addition, specific mobile body information may be automatically transmitted from the mobile work machine 31 at a specific time every specific day of the week (for example, every Saturday at 23:00).

  Since specific mobile body information is transmitted at a specific time as described above, the specific mobile body information of the mobile work machine 31 can be periodically acquired from the display screen on the terminal side.

  Further, when the accumulated value of the operating time of the mobile work machine 31 reaches a specific operating time accumulated value, for example, when the absolute value of the service meter reaches 100 hours, 300 hours, or 500 hours, the specific moving body information (For example, “service meter”, “body alarm 1” (error code 1), “body alarm 2” (error code 2), “battery voltage”, “engine water temperature”, “engine speed”, “pump pressure”, “Oil amount”) may be automatically transmitted.

  Thus, since specific mobile body information is transmitted when it becomes a specific accumulated operating time value, preliminary information for performing a statutory periodic inspection can be acquired on the display screen on the terminal side. In addition, since automatic transmission is performed according to the operating time transition (load), it is possible to avoid useless communication during the vehicle rest period and to reduce the communication cost.

  Further, every time the cumulative value of the operating time of the mobile work machine 31 increases by a specific amount, for example, every time 100 hours have elapsed since the last automatic transmission of the service meter (or every time 500 hours have elapsed). Specific mobile body information (for example, “service meter”, “body alarm 1” (error code 1), “body alarm 2” (error code 2), “battery voltage”, “engine water temperature”, “engine speed” , “Pump pressure”, “oil amount”) may be automatically transmitted. The increase value of the service meter can be set according to the traveling time by the service car 34.

  In this way, since the specific mobile information is transmitted each time the operating time cumulative value increases by a specific amount, preliminary information for performing the statutory regular inspection can be acquired on the display screen on the terminal side. . Further, when displayed on the administrator's terminal, it is possible to easily instruct the service car 34 to go around. Further, when displayed on the terminal on the service person side, the mobile work machine requiring the service can be easily identified and the service by the service car 34 can be performed quickly. In addition, since automatic transmission is performed according to the operating time transition (load), it is possible to avoid useless communication during the vehicle rest period and to reduce the communication cost.

  Various modifications can be made to the above embodiment. Hereinafter, FIGS. 9, 10, 11, 12, and 14 will be described.

  The automatic transmission may be performed when the position of the mobile work machine 31 changes.

  The position of the mobile work machine 31 is detected by the GPS sensor 57 as shown in FIG. The detection result of the GPS sensor 57 is input to the communication controller 54. When the communication controller 54 determines that the position of the mobile work machine 31 has changed, the changed position information is sent to the communication terminal 56 as transmission data. Then, an electronic mail in which position information is described is automatically transmitted from the communication terminal 56 via the satellite communication antenna 58.

  Since the position information is transmitted every time the position of the mobile work machine 31 changes in this way, the movement history of the mobile work machine 31 can be acquired on the display screen on the terminal side.

  The automatic transmission may be performed when the mobile work machine 31 deviates from a specific setting range 129 as shown in FIG.

  The position of the mobile work machine 31 is detected by the GPS sensor 57 as shown in FIG. The detection result of the GPS sensor 57 is input to the communication controller 54. The communication controller 54 stores work site position information. This work site setting range 129 is a circle having a radius S (km). Therefore, the detection position of the mobile work machine 31 and the boundary position of the setting range 129 are compared, and it is determined whether or not the mobile work machine 31 has deviated from the setting range 129. When the mobile work machine 31 reaches the boundary position J of the setting range 129, the position information of the mobile work machine 31 at that time is sent to the communication terminal 56 as transmission data. Then, an electronic mail in which position information is described is automatically transmitted from the communication terminal 56 via the satellite communication antenna 58.

  As described above, since the position information is transmitted when the mobile work machine 31 deviates from the setting range 129 (when the set position is exceeded), the mobile work machine 31 operates in the work site on the display screen on the terminal side. It is possible to easily monitor whether or not it is. The setting range 129 is not limited to a fixed range as a work site, and may be a range centered on a position where the mobile work machine 31 has existed in the past. That is, the setting range may be updated as time passes.

  The shape of the setting range 129 is not limited to a circle, and may be any shape such as an ellipse, a square, a rectangle, an ellipse having a traveling direction of the mobile work machine 31 as a longitudinal direction, or a rectangle.

  The setting range 129 shown in FIG. 10 may be a range corresponding to the normal range 117 shown in FIG.

  Moreover, you may make it perform automatic transmission when the variation | change_quantity of the movement position of the mobile work machine 31 exceeds a setting value, as shown in FIG.

  The position of the mobile work machine 31 is detected by the GPS sensor 57 as shown in FIG. The detection result of the GPS sensor 57 is input to the communication controller 54 at a constant sampling cycle. In the communication controller 54, the moving speed V of the mobile work machine 31 is calculated based on the difference value between the position detected last time and the position detected this time and the sampling time. Therefore, the moving speed V of the mobile work machine 31 is compared with the set value V2 (FIG. 25), and it is determined whether or not the speed V of the mobile work machine 31 exceeds the set value V2. When the speed V of the mobile work machine 31 exceeds the set value V2, the position information of the mobile work machine 31 at that time is sent to the communication terminal 56 as transmission data. Then, an electronic mail in which position information is described is automatically transmitted from the communication terminal 56 via the satellite communication antenna 58.

  As described above, since the position information is transmitted when the speed V of the mobile work machine 31 exceeds the set value V2, it is easy to monitor the movement state of the mobile work machine 31 on the display screen on the terminal side. Can do. That is, the mobile work machine 31 such as a construction machine travels at a very low speed. For this reason, if the set value V2 is set to a high speed at which the mobile work machine 31 cannot normally travel, for example, the speed at which the trailer 35 cruises on the highway, the speed V of the mobile work machine 31 sets the set value V2. When it exceeds, it can be determined that the trailer 35 is carrying. In addition, when the vehicle is being transported by a trailer under normal circumstances during which it is not transported, it can be recognized that an abnormal situation such as theft has occurred, and appropriate measures can be taken quickly.

  The automatic transmission may be performed when the service car 34 enters a specific setting range 125, 126 as shown in FIG.

  The position of the service car 34 is detected by a GPS sensor 57 as shown in FIG. The detection result of the GPS sensor 57 is input to the communication controller 54. The communication controller 54 stores location information of the destination 126 and the intrusion prohibited area 125 where the mobile work machine 31 to be serviced exists. This destination setting range 126 is a circle with a predetermined radius centered on the position of the mobile work machine 31. The intrusion prohibited area 125 is, for example, a road that is restricted due to heavy rain or an area with poor ground.

  Therefore, the detection position of the service car 34 and the boundary positions of the setting ranges 125 and 126 are compared, and it is determined whether or not the service car 34 has entered the setting range 125 or 126. When the service car 34 travels along the route 127 or the route 128 and reaches the boundary position H or I of the setting range 125 or 126, the position information of the service car 34 at that time is sent to the communication terminal 56 as transmission data. The Then, an electronic mail in which position information is described is automatically transmitted from the communication terminal 56 via the satellite communication antenna 58.

  As described above, since the position information is transmitted when the service car 34 enters the setting range 125 or 126 (when it exceeds the set position), the service car 34 arrives at the destination on the display screen on the terminal side. It is possible to easily monitor whether or not an intrusion prohibited area has been entered. That is, the administrator can recognize from the display screen of the terminal that the service car 34 has arrived at the destination 126 and started the service, and that the service car 34 has entered the prohibited entry area 125 and is in a dangerous state. Can be recognized. Therefore, as described above, appropriate work instruction data (message “return upon completion”, “avoid intrusion prohibited area”) can be transmitted from the administrator terminal to the service car 34 (see FIG. 4). ).

  The shape of the destination setting range 126 is not limited to a circle, and may be an arbitrary shape such as an ellipse, a square, or a rectangle.

  Further, the setting ranges 125 and 126 shown in FIG. 9 may be ranges corresponding to the abnormal range 118 shown in FIG.

  The automatic transmission may be performed when the amount of data to be transmitted matches the set value or exceeds the set value as shown in FIG.

  In a communication system that employs a pay-per-use billing system, as shown in FIG. 11A, the communication fee to be paid per time is a fixed amount in a monthly amount up to a predetermined data amount Do. When the data amount D exceeds the set value D0, it is necessary to pay an additional fee for the excess data amount.

  Therefore, specific mobile body information to be automatically transmitted from the mobile work machine 31 is collected and stored in the communication controller 54. In the communication controller 54, the accumulated data amount D is compared with the set value (80% of D0). Then, as shown in FIG. 11B, when the accumulated data amount D matches the set value (80% of D0), the accumulated mobile information is sent to the communication terminal 56 as outgoing data. Then, an e-mail in which moving body information is described is automatically transmitted from the communication terminal 56 via the satellite communication antenna 58.

  Since the mobile information is transmitted when the data amount D to be automatically transmitted matches (or exceeds) the set value in this way, the maximum amount of mobile information within the fixed amount is displayed on the display screen on the terminal side. Can be made.

  The automatic transmission may be performed when the fuel amount matches the set value or falls below the set value as shown in FIG.

  The sensor group 62 in the mobile work machine 31 detects the fuel amount and sequentially transmits it to the communication controller 54. In the communication controller 54, the detected fuel amount is compared with the set value. Then, as shown in FIG. 12A, when the detected fuel amount matches the set value, the mobile body information (“position”, “fuel amount”) is sent to the communication terminal 56 as transmission data. Then, an e-mail in which moving body information is described is automatically transmitted from the communication terminal 56 via the satellite communication antenna 58.

  In this way, when the fuel amount matches the set value (or falls below the set value), the mobile unit information is transmitted, so it is recognized from the terminal-side display screen that it is time to refuel. can do. For this reason, in the same manner as in FIGS. 3 and 4, it is possible to transmit appropriate work instruction data (message “please refuel”) from the administrator side terminal to the service car 34 that performs the refueling patrol service.

  In addition, the automatic transmission may be performed when the voltage of the battery 63 matches the set value or falls below the set value as shown in FIG.

  The sensor group 62 in the mobile work machine 31 detects the voltage value of the battery 63 and sequentially transmits it to the communication controller 54. In the communication controller 54, the detected battery voltage is compared with the set value. Then, when the detected battery voltage matches the set value as shown in FIG. 12B, the mobile body information (“position”, “battery voltage”) is sent to the communication terminal 56 as transmission data. Then, an e-mail in which moving body information is described is automatically transmitted from the communication terminal 56 via the satellite communication antenna 58.

  As described above, since the mobile unit information is transmitted when the voltage of the battery 63 matches the set value (or falls below the set value), the battery 63 is charged and replaced from the display screen on the terminal side. Recognize that it is time for maintenance and inspection. For this reason, it is possible to transmit appropriate work instruction data (message “check battery”) from the terminal on the manager side to the service car 34 in the same manner as in FIGS. Further, by recognizing on the display screen on the terminal side that the battery 63 is nearly discharged, a request to turn on the sleep function is transmitted thereafter, and communication with the mobile work machine 31 is performed only intermittently. It can be set so that no further discharge can be suppressed.

  Further, when the mobile body information automatically transmitted last time and the mobile body information to be automatically transmitted this time have the same content, it is possible to perform the automatic transmission without performing the automatic transmission.

  As shown in FIG. 2, an abnormality that has occurred in the mobile work machine 31, for example, “high engine speed”, “high engine exhaust temperature”, “high coolant temperature”, “low battery voltage”, An abnormality such as “the amount of fuel is small” is detected by a predetermined sensor in the sensor group 62. As described above, the detection signal of this sensor is described in the frame signal as an error code (for example, “abnormal item: small amount of fuel”) by the electronic controller 53 and sent to the signal line 52 so that it is sequentially input to the communication controller 54. Is done.

  In the communication controller 54, the error code automatically transmitted last time is compared with the currently input error code. Only when the previously automatically transmitted error code is different from the currently input error code, the currently input error code is transmitted to the communication terminal 56 as transmission data. Then, an e-mail in which moving body information is described is automatically transmitted from the communication terminal 56 via the satellite communication antenna 58.

  In this way, automatic transmission is performed only when the error code that was automatically transmitted last time and the error code that should be automatically transmitted this time are different, the error code that was automatically transmitted last time and the error code that should be automatically transmitted this time Since the automatic transmission is not performed when the contents are the same, it is possible to avoid the waste of transmitting the same information a plurality of times. The same applies when mobile body information other than error codes is automatically transmitted.

  In the above-described embodiment, if the parameter has a specific value inside the mobile body, the specific mobile body information is voluntarily transmitted. However, in this case, the “parameter” (stored data such as the data amount D is stored). , Sensor detection data such as battery voltage), “specific value”, and “specific mobile object information” can be arbitrarily changed from, for example, the terminal (server terminal 21, terminal 11) on the administrator side. is there. In this case, as described above, an e-mail in which change data for changing the above parameters and the like is described from the terminal is transmitted to the mobile work machine 31 with the mobile work machine 31 as a mail address. Then, the change data described in the e-mail is read at the communication terminal 56 of the destination mobile work machine 31, and the parameters and the like are changed according to the contents of the change data.

  For example, when the service meter of the mobile work machine 31 exceeds a predetermined value (when it is aged), the monitoring interval is shortened, and when it is loaned to a specific user (when monitoring is not necessary) , “Parameters”, “specific values” so that the monitoring interval becomes longer and wasteful power consumption and communication charges are reduced when the vehicle is closed for a long time (when it is clear that the operation is stopped). The content of “specific mobile object information” is changed. In addition, about the several mobile body which is working and running in the group, it can also be changed to the same content all at once. For example, “specific mobile information” can be reduced to only important monitoring items.

  As described above, according to the present embodiment, it is possible to change the time and contents automatically transmitted by remote operation while monitoring the status of the moving body and the surrounding situation on the terminal side. For this reason, it is not necessary for the operator to go to each of the moving bodies 31, 32..., And the work load is greatly reduced.

  If the moving body information to be transmitted by automatic transmission is the position of the moving body, the latitude and longitude on the map may be transmitted as the position information, or the relative position with respect to a specific reference may be transmitted as the position information. Good.

  Further, instead of automatically transmitting the voltage value of the battery 63 as moving body information, the amount of change in the voltage of the battery 63 may be automatically transmitted.

  Moreover, you may automatically transmit working load information, work amount, and fuel consumption as mobile body information.

  As described above, according to the present embodiment, the specific mobile object information at the time when the specific parameter reaches the specific value is grasped on the display screen on the terminal side without performing the request input operation on the terminal side. be able to. Therefore, it is possible to recognize an abnormal situation (for example, theft, failure, etc.) that has occurred in a mobile body that cannot be managed and monitored constantly, and to accurately grasp the operating state and the resting state of the mobile body.

  This automatic transmission embodiment is not limited to the communication system shown in FIG. 1 and can be applied to any communication system. Any communication system that includes at least two communication stations and performs communication between the two communication stations is applicable.

  By the way, the information to be displayed on the terminals 11 and 12 is enormous. Therefore, an embodiment will be described in which only important information is preset from a vast amount of information and only this important information is displayed together on a specific display screen. As a result, the manager can quickly determine and cope with an abnormal situation.

  In the following embodiment, the mobile work machine 31 will be described as a representative. Further, it is assumed that the terminal 11 is a terminal on the manager side that manages the mobile work machine 31. The server of the terminal 11 is assumed to be the server terminal 21.

  Although not shown in FIG. 2, a start lock circuit is incorporated in the vehicle body 50 of the mobile work machine 31. This start lock circuit is composed of a relay or the like and is interposed between the key switch 64 (FIG. 21) and the starter motor. The starter motor is a motor that starts the engine of the mobile work machine 31.

  When the start lock setting command is output from the communication controller 54, the relay of the start lock circuit is energized to enter the start lock setting state. That is, even if the key switch 64 is turned on, the voltage of the in-vehicle battery 63 (FIG. 21) is not applied to the starter motor and the engine cannot be started. On the other hand, when a start lock release command is output from the communication controller 54, the relay of the start lock circuit is de-energized to enter the start lock release state. That is, when the key switch 64 is turned on, the voltage of the in-vehicle battery 63 is applied to the starter motor and the engine is started.

  The vehicle 31 may be stolen by self-running or may be stolen by being loaded on a transporter such as a trailer. Here, the case where it is loaded into a trailer and stolen is assumed. Note that the following processing can also be applied in the same manner when the vehicle 31 is driven and stolen.

  The server terminal 21 creates a homepage display screen called “notification screen” shown in FIG. This “notification screen” is set as the first page of the homepage. Only the following important information is collectively displayed on this “notification screen”.

a) Information that the vehicle 31 is out of the setting range b) Information that the engine of the vehicle 31 was started at night c) Information that the battery voltage of the vehicle 31 was lowered d) The start lock was set or released E) Information indicating that communication between the vehicle 31 and the server terminal 21 has been interrupted f) Information indicating that a request for the vehicle 31 has not been achieved (for example, the vehicle 31 is in spite of issuing a start lock setting command). Information that the start lock is not set)
That is, when automatic transmission is performed from the vehicle 31 side and the mobile body information automatically transmitted by the server terminal 21 is received, the server terminal 21 determines whether or not the mobile body information should be displayed on the “notification screen” of the homepage. Yes.

  When the engine is started at midnight (time 20: 00 to 6:00) on the vehicle 31 side, information “the engine of the vehicle 31 has been started” is automatically transmitted to the server terminal 21 by e-mail. Since this mobile body information is the specific information of b), it is determined that it should be displayed on the “notification screen”, and the display content of the “notification screen” is updated.

  For this reason, when a WWW browser is activated on the terminal 11 that manages the vehicle 31, data on the home page is read from the server terminal 21 via the WWW browser and displayed on the display screen of the display device of the terminal 11.

  FIG. 34 shows the first page of the home page displayed on the display device of the terminal 11, that is, the screen at the time of activation.

  As shown in FIG. 34, the content “The vehicle was started at night” is “occurrence time”, and the “manufacturer”, “model”, “model number”, “model number”, and “ID” of the vehicle 31 are specified. It is displayed with the contents to be. From this display screen, the administrator can know that the vehicle 31 has “the engine has started at night”, and can take quick and accurate countermeasures against abnormal situations such as theft and mischief.

  The administrator can place the vehicle 31 in the start lock setting state by remote control. This is executed by setting the display screen of the terminal 11 to the “engine restart prohibition setting screen” and clicking the “engine restart prohibition” button. As a result, an e-mail indicating that the vehicle 31 is in the start lock setting state is transmitted from the terminal 11 to the vehicle 31 side.

  On the vehicle 31 side, when data indicating the start lock setting state is received by the communication terminal 56 via the satellite communication antenna 58, this data is taken into the communication controller 54. As a result, a start lock setting command is output from the communication controller 54 to the start lock circuit. For this reason, the relay of the start lock circuit is energized to enter the start lock setting state. That is, even if the key switch 64 is turned on, the voltage of the in-vehicle battery 63 is not applied to the starter motor, and the engine of the vehicle 31 is not restarted.

  On the vehicle 31 side, it is determined whether or not the start lock has been set. When it is determined that the start lock is set on the vehicle 31 side, information that “the start lock is set remotely on the vehicle 31” is automatically transmitted to the server terminal 21 by e-mail. Since this mobile body information is the specific information of d) above, it is determined that the server terminal 21 should display it on the “notification screen”, and the display content of the “notification screen” is updated.

  Therefore, on the display screen of the terminal 11, as shown in FIG. 34, the content of “the lock was set remotely” is “occurrence time”, “maker”, “model”, “model number”, “machine” of the vehicle 31. No. ”and“ ID ”are displayed together with the contents for specifying. From this display screen, the manager can confirm that the vehicle 31 is “started and locked remotely”.

  The server terminal 21 stores the fact that an e-mail indicating that the start lock setting state is set has been transmitted to the vehicle 31. Therefore, if the information that “the start lock is set remotely” is not returned from the vehicle 31 side even after a predetermined time has elapsed since this email is transmitted to the vehicle 31 side, It is determined that “the start lock setting is not set in the vehicle 31 despite the start lock setting command being issued”. That is, it is determined that “the request for the vehicle 31 has not been achieved”. This may be due to either a cause on the vehicle 31 side such as a malfunction of the start lock circuit of the vehicle 31 or a cause of a poor communication state between the vehicle 31 and the server terminal 21. Since this mobile body information or communication state information is the specific information of f) above, the server terminal 21 determines that it should be displayed on the “notification screen”, and the display content of the “notification screen” is updated.

  For this reason, as shown in FIG. 34, the display screen of the terminal 11 indicates that “the confirmation of lock has not arrived from the vehicle” is “occurrence time”, “manufacturer”, “model”, “model number” of the vehicle 31. , “Machine number” and “ID” are displayed together with the contents. From this display screen, the administrator can know that “the lock has not been confirmed” in the vehicle 31. And it is possible to take a quick and accurate response to this abnormal situation.

  The administrator can bring the vehicle 31 into a start lock release state by remote control. This is executed by setting the display screen of the terminal 11 to “engine restart cancellation screen” and clicking the “engine restart cancellation” button. As a result, an e-mail indicating that the vehicle 31 is in the start-up unlock state is transmitted from the terminal 11 to the vehicle 31 side.

  On the vehicle 31 side, when data indicating the start lock release state is received by the communication terminal 56 via the satellite communication antenna 58, this data is taken into the communication controller 54. As a result, a start lock release command is output from the communication controller 54 to the start lock circuit. For this reason, the relay of the start lock circuit is de-energized and the start lock is released. That is, when the key switch 64 is turned on, the voltage of the in-vehicle battery 63 is applied to the starter motor, and the engine of the vehicle 31 can be restarted.

  On the vehicle 31 side, it is determined whether the start lock has been released. When it is determined that the start lock has been released on the vehicle 31 side, information that “the vehicle 31 has been remotely released from the start lock” is automatically transmitted to the server terminal 21 by e-mail. Since this mobile body information is the specific information of d) above, it is determined that the server terminal 21 should display it on the “notification screen”, and the display content of the “notification screen” is updated.

  For this reason, the display screen of the terminal 11 indicates that “the remote has been unlocked” includes “occurrence time”, “manufacturer”, “model”, “model number”, “machine number”, “ID” of the vehicle 31. Displayed with specific content. From this display screen, the manager can confirm that the vehicle 31 is “remotely released from the start lock”.

  The server terminal 21 stores that an e-mail indicating that the start lock is released is transmitted to the vehicle 31. Therefore, if the information indicating that “the start lock is released remotely” is not returned from the vehicle 31 side even after a predetermined time has elapsed since the email is transmitted to the vehicle 31 side, It is determined that “the start lock is not released in the vehicle 31 despite the start lock release command being issued”. That is, it is determined that “the request for the vehicle 31 has not been achieved”. This may be due to either a cause on the vehicle 31 side such as a malfunction of the start lock circuit of the vehicle 31 or a cause of a poor communication state between the vehicle 31 and the server terminal 21. Since this mobile body information or communication state information is the specific information of f) above, the server terminal 21 determines that it should be displayed on the “notification screen”, and the display content of the “notification screen” is updated.

  For this reason, on the display screen of the terminal 11, the content of “No confirmation of unlocking from the vehicle” is “occurrence time”, “manufacturer”, “model”, “model number”, “machine number” of the vehicle 31, It is displayed together with the contents specifying “ID”. From this display screen, the administrator can know from the vehicle 31 that “unlock confirmation has not been taken”. And it is possible to take a quick and accurate response to this abnormal situation.

  Now, it is assumed that automatic transmission from the vehicle 31 is performed every 23:00 every day. As shown in FIG. 30, when the contents of the daily operation map are updated and become 23:00 every day, the updated operation map is automatically transmitted from the vehicle 31. For this reason, a state in which transmission from the vehicle 31 has not continued for a predetermined time, for example, 36 hours or more, means that an abnormality has occurred in the communication state. This “36 hours” is a time obtained by adding a normal operation time (12 hours: AM 8: 00 to PM 8:00) of the next day to one day (24 hours).

  The server terminal 21 stores the time when the e-mail was transmitted from the vehicle 31 to the server terminal 21 last time. Therefore, if a state in which no e-mail is continuously transmitted since the last e-mail is transmitted from the vehicle 31 side continues for a predetermined time (36 hours), the server terminal 21 determines that “the vehicle 31 cannot be communicated for 36 hours or more”. The That is, it is determined that communication between the vehicle 31 and the server terminal 21 is interrupted. This cause can be considered to be both a cause on the vehicle 31 side such as a failure or breakage of the communication device of the vehicle 31 or a cause of a poor communication state between the vehicle 31 and the server terminal 21. Since this mobile body information or communication state information is the specific information of e) above, the server terminal 21 determines that it should be displayed on the “notification screen”, and the display content of the “notification screen” is updated.

  Therefore, on the display screen of the terminal 11, as shown in FIG. 34, the content of “cannot communicate with the vehicle for more than 36 hours” is “occurrence time”, “maker”, “model”, “model number” of the vehicle 31. , “Machine number” and “ID” are displayed together with the contents. From this display screen, the administrator can know that “communication has been lost” with the vehicle 31. And it is possible to take a quick and accurate response to this abnormal situation.

  In the present embodiment, it is determined that communication with the vehicle 31 has been interrupted based on the absence of the next automatic transmission even after a predetermined time has elapsed since the previous automatic transmission. However, when there is no reply from the vehicle 31 side even if a predetermined time has passed since the input operation for requesting information to the vehicle 31 side from the terminal 11, 12. May be.

  As described above, the voltage of the battery 63 of the vehicle 31 is detected by the sensor group 62 and input to the communication controller 54. The communication controller 54 determines whether or not the voltage of the battery 63 continues to drop below a predetermined level (for example, 23 V) (for example, 1 minute or more). The decrease in the voltage of the battery 63 not only makes it difficult to start the vehicle 31, but also means that the in-vehicle communication function is down, which is a serious abnormal situation. When the start lock circuit of the vehicle 31 is operated, power is consumed by the relay of the start lock circuit, so that the voltage of the battery 63 tends to decrease.

  Therefore, when it is determined on the vehicle 31 side that the voltage of the battery 63 continues to drop below a predetermined level (for example, 23 V) (for example, 1 minute or more), the server terminal 21 is notified of the “voltage of the battery 63 of the vehicle 31. Is automatically transmitted by e-mail. Since this mobile body information is the specific information of c), it is determined that it should be displayed on the “notification screen” at the server terminal 21 and the display content of the “notification screen” is updated.

  For this reason, on the display screen of the terminal 11, the content of “battery voltage is low” is displayed as “occurrence time”, “manufacturer”, “model”, “model number”, “machine number”, “ID” of the vehicle 31. Displayed with specific content. From this display screen, the administrator can know that “the voltage of the battery 63 has decreased” of the vehicle 31. And it is possible to take a quick and accurate response to this abnormal situation.

  Now, as already described in FIGS. 9 and 10, automatic transmission is performed when the position of the vehicle 31 changes.

  That is, as shown in FIG. 10, automatic transmission is performed when the vehicle 31 deviates from a specific setting range 129. The specific setting range 129 is set to, for example, a management area of the vehicle 31 (for example, “Fukushima Prefecture”) and a range in which the vehicle 31 can move (for example, “in Japan”). If it is out of the set range, it can be determined that the theft has occurred.

  Therefore, when it is determined on the vehicle 31 side that the vehicle 31 has deviated from the specific setting range 129, information that “the vehicle 31 is out of range” is automatically transmitted to the server terminal 21 by e-mail. Since this mobile body information is the specific information of a) above, it is determined that the server terminal 21 should display it on the “notification screen”, and the display content of the “notification screen” is updated.

  For this reason, on the display screen of the terminal 11, the content “vehicle is out of range” specifies “occurrence time”, and the “manufacturer”, “model”, “model number”, “machine number”, and “ID” of the vehicle 31 are specified. Displayed with content. From this display screen, the administrator can know that the vehicle 31 is “out of range”. And it is possible to take a quick and accurate response to this abnormal situation.

  34 is displayed on the display screen in the same manner not only on the terminal 11 but also on other terminals 12 and the like. As a result, the “notification screen” of FIG. 34 is also displayed on the terminal 12, and important information generated up to the previous day can be easily confirmed.

  It is also possible to allow only the display screen of the management terminal 11 that manages the vehicle 31 to display the “notification screen” of FIG. 34 and not display the “notification screen” on the display screens of other terminals 12 and the like. . This can be realized, for example, by displaying the “notification screen” in FIG. 34 under the condition of an input operation of a specific ID number and a specific password (number corresponding to the terminal 11).

  In the present embodiment, the specific information to be displayed on the “notification screen” in FIG. 34 is not limited to the information shown in a) to f).

  For example, information indicating that the end of the rental period for the customer of the vehicle 31 is approaching may be displayed on the “notification screen”. In the vehicle 31, it is possible to detect that the rental time has approached the end of the rental period based on the value of the service meter, or that the rental period has approached the end of the rental period using a clock provided inside the communication terminal 56.

In addition, when an error code is input to the communication terminal 56 of the vehicle 31, the information may be displayed on the “notification screen” by automatically transmitting from the vehicle 31 side and generating an error. Note that the content of the error code to be displayed on the “notification screen” may be limited to a specific abnormal item (severe abnormal item).
Also, the display items of the “notification screen” in FIG. 34 may be different for each of the vehicles 31, 32. For example, only the display item a) for the vehicle 31 and only the display item b) for the vehicle 32 can be displayed on the “notification screen”.

  In this embodiment, the “notification screen” is displayed on the terminal 11 fixed at one place, but the content of the “notification screen” may be displayed on a portable terminal.

  For example, the contents of the “notification screen” can be displayed on a mobile phone equipped with a WWW browser.

  In this case, the cellular phone packet communication network and the Internet 2 are connected by a gateway. The gateway converts the protocol on the packet communication network and the TCP / IP protocol on the Internet 2 and displays the contents of the home page on the Internet 2 on the display screen of the mobile phone. Every time the “notification screen” is updated anew on the server terminal 21, a sound “new information has arrived” is generated on the mobile phone. As a result, the content of the newly updated “notification screen” is displayed on the display screen of the mobile phone. It should be noted that the display item of the “notification screen” to be displayed on the mobile phone can be limited to a specific display item among a) to f). For example, only the information b) that “the engine of the vehicle 31 was started at night” can be displayed on the display screen of the mobile phone. Thereby, even when the manager is away from the terminal 11, it is possible to obtain information on the vehicle 31 that requires urgent information in real time from the display screen of the mobile phone.

  By the way, since construction machines are expensive, they are often used for rental. Rental of construction machinery is a group rental system. This is because there are various types of construction machines (small hydraulic excavators, medium-sized hydraulic excavators, large hydraulic excavators, etc.), and these various types of construction machines are shared by multiple sales offices. . For this reason, if there is a rental request for a specific model from a customer at a sales office and there is no construction machine of the corresponding model, the business can be made available for the construction machine of that specific model from another sales office. Never miss a chance.

  In order to respond to customer rental requests, it is necessary to reliably manage the loading and unloading of construction machinery at each sales office. Next, an embodiment for managing entry / exit will be described.

  FIG. 35 shows a configuration example of the embodiment. FIG. 35 shows sales offices 130, 131, and 132 that exist in an area 135 called “Fukushima Prefecture”, for example. The sales office 130 is in “Nihonmatsu”, the sales office 131 is in “Koriyama”, and the sales office 132 is in “Shirakawa”. Reference numerals 133 and 134 denote customer work sites. The vehicles 31 and 32 are managed at the sales offices 130 to 132. Actually, there are more sales offices, work sites, and vehicles (mobile work machines), but they are omitted for convenience of explanation.

  Of the sales offices 130, 131, and 132, 131 is the head office and 130 and 132 are branch offices. The headquarters 131 centrally manages the vehicles 31 and 32. A terminal 11 is provided in the headquarters 131. A terminal equivalent to the terminal 11 may be provided in the branch offices 130 and 132.

  The positions of the sales offices 130, 131, and 132 are represented by P (Px, PY), Q (Qx, QY), and R (Rx, RY), respectively, in the XY coordinate system. The positions of the work sites 133 and 134 are represented by Z (Zx, ZY) and W (Wx, WY) in the XY coordinate system, respectively. Note that the position may be represented by latitude and longitude on the earth so as to match the map on the GPS.

  For each sales office 130, 131, 132, an entry / exit area is set around the points P, Q, R. For example, in the branch 130, a storage area 130a centered on the point P is set. Further, a delivery area 130b centered on the point P is set. The exit area 130b is larger than the entrance area 130a, and ΔX hysteresis is provided between the border line of the exit area 130b and the border line of the entrance area 130a.

  Similarly, a warehousing area 131a and a warehousing area 131b centered on the point Q are set in the main store 131, and a warehousing area 132a and a warehousing area 132b centered on the point R are set in the main store 132. The size of the entry / exit area is determined in consideration of the error of the GPS measuring device, the size of the sales office, and the like. For example, the loading / unloading area has a vertical width and a horizontal width of several hundred meters.

  In addition, for each work site 133, 134, work areas 133, 134 are set around the points Z, W.

  The communication controller 54 of the vehicle 31 stores the location information of the entry / exit areas of the sales offices 130, 131, 132 and the location information of the work areas of the work sites 133, 134. Similarly, similar position information is also stored in the communication controller 54 of the vehicle 32.

  In order to newly install the communication terminal 56 in the vehicles 31 and 32 and start communication, it is necessary to perform a communication application procedure and confirm the receipt of the application at the server terminal 21 that manages communication. In this embodiment, this communication application procedure can be performed on the screen of the terminal 11.

  That is, after the communication terminal 56 is mounted on the vehicles 31 and 32, a communication application input operation is performed from the display screen of the terminal 11. As a result, the communication connection is confirmed between the server terminal 21 and the communication terminals 56 of the vehicles 31 and 32. At the same time, the server terminal 21 transmits the position information of the sales offices 130, 131, 132 and the position information of the work sites 133, 134 to the vehicles 31, 32. As a result, the communication controller 54 of the vehicles 31 and 32 stores the location information of the entry / exit areas of the sales offices 130, 131 and 132 and the location information of the work areas of the work sites 133 and 134. When the communication connection is confirmed, the fact that the communication application for the vehicles 31 and 32 has been received is displayed on the display screen of the terminal 11. When the terminal 11 confirms receipt of the application, communication with the vehicles 31 and 32 becomes possible thereafter.

  Hereinafter, the operation when the vehicle 31 leaves the vehicle 31 will be described.

  As already described with reference to FIGS. 9 and 10, the position of the vehicle 31 is detected by the GPS sensor 57 via the GPS antenna 59. The detection result of the GPS sensor 57 is input to the communication controller 54. The communication controller 54 compares the detection position of the vehicle 31 with the position of the entry / exit area of each sales office 130, 131, 132, and determines whether the vehicle 31 has entered / exited from the entry / exit area.

  For example, it is assumed that the vehicle 31 enters the branch 130.

  Whether or not the vehicle 31 has entered the branch 130 depending on whether or not the vehicle 31 has entered from the outside of the storage area 130a of the branch 130 and stayed in the storage area 130a for a predetermined time (for example, a few minutes). Is judged. The condition of staying in the warehousing area 130a for a predetermined time or longer is simply considering the case of passing through the branch 130. As a result, when it is determined that the vehicle has entered the warehousing area 130a, an identification code ("vehicle 31") that identifies the vehicle 31 at that time, an identification code that identifies the branch 130 ("Nishitokyo store"), and "goods receipt" (These are referred to as “entry information”) are transmitted from the communication controller 54 to the communication terminal 56 as transmission data. Then, an electronic mail in which the warehousing information is described is automatically transmitted from the communication terminal 56 to the server terminal 21 via the satellite communication antenna 58. Here, it is assumed that the server terminal 21 is provided at the location of the manufacturer that manufactured the vehicles 31 and 32.

  The server terminal 21 creates a homepage display screen called “entry / exit screen” shown in FIG.

  That is, when automatic transmission is made from the vehicle 31 side and the automatically entered warehousing information is received at the server terminal 21, the warehousing information is described on the “entry / departure screen” on the home page at the server terminal 21, and the “entry / exit screen” is displayed. The content is updated.

  For this reason, when a WWW browser is activated on the terminal 11 that manages the vehicle 31, data on the home page is read from the server terminal 21 via the WWW browser and displayed on the display screen of the display device of the terminal 11.

  FIG. 36 shows a homepage screen displayed on the display device of the terminal 11. FIG. 36 is an “entrance / exit screen” showing the entry / exit history of the vehicle 31.

  As shown in FIG. 36, the content that the vehicle 31 is “received at the West Tokyo store” is displayed in real time together with the “entry time”. From this display screen, the administrator can know that the vehicle 31 has been “received in the West Tokyo store”, and can reliably arrange for the customer.

  Similarly, by determining that the vehicle 31 deviates from the inside of the exit area 130b of the branch 130 to the outside and stays outside the exit area 130b for a predetermined time (for example, 2 or 3 minutes), the vehicle 31 moves to the branch. It is determined that the product has been issued from 130. Information that the vehicle 31 has left the “West Tokyo” branch 130 at this time of determination (this is referred to as “shipping information”) is automatically transmitted to the server terminal 21 by e-mail. For this reason, as shown in FIG. 36, in the “entry / exit screen” of the display device of the terminal 11, the content that the vehicle 31 has been delivered from the West Tokyo store is displayed in real time together with the “departure time”.

  Here, as described above, a hysteresis of ΔX is provided between the boundary line of the exit area 130b and the boundary line of the entrance area 130a. Therefore, hunting when the vehicle 31 is moving near the branch 130 can be prevented.

  Similarly, when it is determined that the vehicle 31 has entered the warehousing area 132a of the branch 132, the warehousing information that the vehicle 31 has entered the “South Tokyo” branch 132 at that time is automatically transmitted to the server terminal 21 by e-mail. Is done. For this reason, as shown in FIG. 36, on the “entrance / exit screen” of the display device of the terminal 11, the content that the vehicle 31 has been “entered Minami Tokyo store” is displayed in real time together with the “entry time”.

  Further, when it is determined that the vehicle 31 has exited from the exit area 132b of the branch 132, entry information that the vehicle 31 has exited from the “Shirakawa” branch 132 at that time is automatically transmitted to the server terminal 21 by e-mail. For this reason, as shown in FIG. 36, in the “entry / exit screen” of the display device of the terminal 11, the content that the vehicle 31 has been delivered from the South Tokyo store is displayed in real time together with the “departure time”.

Similarly, when the vehicle 31 enters the entry area 131a of the “North Tokyo” head office 131 or exits from the exit area 131b of the “North Tokyo” head office 131, the “entry / exit screen” on the display device of the terminal 11 is displayed. Indicates that the vehicle 31 has been “received in the Kita Tokyo store” or “departed from the Kita Tokyo store”.

  In this way, the latest history of loading / unloading of the vehicle 31 is displayed in real time as shown in FIG. A similar “entry / exit screen” is also obtained for the vehicles 32 other than the vehicle 31, and the latest history of entry / exit of the vehicle 31 is displayed in real time. For this reason, the management of entering and exiting the vehicles 31 and 32 can be reliably performed without error. As a result, business opportunities are not missed, and operating profits are dramatically improved.

  Further, when it is determined that the vehicle 31 has entered the work area 133 of the customer who is the rental destination, carry-in information that the vehicle 31 has been carried into the work site 133 at that time is automatically transmitted to the server terminal 21 by e-mail. The For this reason, on the display device of the terminal 11, the content that the vehicle 31 is “loaded into the work site 133” is displayed in real time together with the “loading time”.

  Further, when it is determined that the vehicle 31 has left the work area 133, carry-out information that the vehicle 31 has been carried out from the work site 133 at that time is automatically transmitted to the server terminal 21 by e-mail. For this reason, on the display device of the terminal 11, the content that the vehicle 31 is “carried out from the work site 133” is displayed in real time together with the “carrying out time”.

  Similarly, when the vehicle 31 enters or exits the work site 134, the vehicle 31 is “loaded into the work site 134” or “work site” on the display device of the terminal 11. The content “exported from 134” is displayed. In this way, the carry-in / out history of the vehicle 31 is updated.

  Moreover, you may display the movement log | history of the vehicle 31 after leaving from each sales office 130-132 on the terminal 11. FIG. This is realized by automatically transmitting position information every time the vehicle 31 moves, for example, 10 km. Thereby, the movement history and the current position of the vehicle 31 can be confirmed on the terminal 11.

  By comparing the current position of the vehicle 31 with the known positions Z and W of the work sites 133 and 134, it is determined on the screen of the terminal 11 whether or not the vehicle 31 is present at the work sites 133 and 134. be able to.

  Further, when the vehicle 31 under management deviates from the management area (“Tokyo”) 135, information “out of the management area” is automatically transmitted, and the “notification screen” of FIG. Can also be displayed. As a result, the administrator can know that the vehicle 31 “exists outside the management area”, and can take a quick and accurate response to an abnormal situation (theft, etc.).

  Note that only the display screen of the management terminal 11 that manages the vehicles 31 and 32 is allowed to display the “entry / exit screen” in FIG. 36, and the “entry / exit screen” is displayed on the display screen of other terminals other than the terminal 11. Implementation without this is also possible. This is realized by, for example, displaying the “entry / withdrawal screen” in FIG. 36 on condition that an input operation of a specific ID number and a specific password (number corresponding to the terminal 11) is performed.

  By the way, the construction machines 31 and 32 are brought into the rental destination or the construction machines 31 and 32 are collected from the rental destination by mounting the construction machines 31 and 32 by the trailer 35. Since the transportation cost by the trailer 35 is high, it is necessary to increase the efficiency of transportation by the trailer 35 and keep the transportation cost low. Further, it is necessary to increase the efficiency of transportation by the trailer 35, increase the opportunity for rental, and increase the operating profit by promptly carrying in or collecting from the rental destination.

  Next, an embodiment that can improve the transport efficiency of the construction machines 31 and 32 will be described with reference to FIG.

  Now, as described with reference to FIG. 36, on the terminal 11 side, information on whether or not the vehicles 31 and 32 are entering and leaving the sales offices 130 to 132 and the vehicles 31 and 32 are carried into and out of the respective work sites 133 and 134. Information on whether or not

  Now, on the terminal 11 side, as shown in FIG. 37 (a), the loading / unloading information and the loading / unloading information that “the vehicle 31 is loaded into the branch 130 and the vehicle 32 is loaded into the work site 134” are acquired. And At this time, it is assumed that there is a request that “the vehicle 31 is carried into the work site 133 and the vehicle 32 is carried out from the work site 134”. Then, based on the loading / unloading information and the loading / unloading information, the terminal 11 carries “the vehicle 31 of the branch 130 into the work site 133 and the vehicle 32 of the work site 134 is unloaded on the return path from the terminal 11. Work instruction data “collect up to 130” can be sent by e-mail. In this case, in the same manner as already described with reference to FIG. 4, the display screen of the terminal 14 equipped with the trailer 35 displays “the current position of the trailer 35 itself, the current position of the vehicle 31 (the position of the branch 130), the position of the work site 133, The current position of the vehicle 32 (the position of the work site 134 and a work instruction message) are displayed. The operator of the trailer 35 can work efficiently according to the display screen of the terminal 14.

  That is, the trailer 35 moves to the branch 130, loads the vehicle 31 and leaves the branch 130. At this time, the delivery information that the vehicle 31 has been delivered from the branch 130 is automatically transmitted from the vehicle 31 and the content of the “entry / exit screen” in FIG. 36 is updated. The trailer 35 carries the vehicle 31 and enters the work site 133 through the route 136. At this time, carry-in information that the vehicle 31 has entered the work site 133 is automatically transmitted from the vehicle 31 and the carry-in / out history is updated.

  The trailer 35 enters the work site 134 through a route 137 in an empty state. The trailer 35 loads the vehicle 32 and carries it out from the work site 134. At this time, carry-out information that the vehicle 32 has been carried out from the work site 134 is automatically transmitted from the vehicle 32, and the carry-in / out history is updated.

  The trailer 35 carries the vehicle 32 and enters the branch 130 through the route 138. At this time, the warehousing information that the vehicle 32 has entered the branch 130 is automatically transmitted from the vehicle 32, and the warehousing history regarding the vehicle 32 is updated.

  As described above, the trailer 35 can carry in the vehicle 31 and carry out and collect the vehicle 32 by one turn. For this reason, the time for which the trailer 35 is in an empty state can be reduced, and the transport efficiency is improved.

  FIG. 37 (b) shows another example of transportation work.

  At the terminal 11 side, as shown in FIG. 37 (b), “the vehicle 31 has been carried into the work site 133, and the vehicle 32 has been carried into the work site 134 (the vehicles 31, 32 from the branches 130, 132). It is assumed that the loading / unloading information and the loading / unloading information are acquired. At this time, it is assumed that there is a request that “the vehicle 31 is carried into the work site 134 and the vehicle 32 is carried out from the work site 134”. Then, based on the loading / unloading information and the loading / unloading information, the terminal 11 sends the vehicle 31 at the work site 133 to the trailer 35 and transfers it to the work site 134 to carry out the vehicle 32 at the work site 134. Work instruction data “collect to branch 132” can be sent by e-mail. In this case, in the same manner as already described with reference to FIG. 4, the display screen of the terminal 14 equipped with the trailer 35 displays “the current position of the trailer 35 itself, the current position of the vehicle 31 (position of the work site 133), and the current position of the vehicle 32. (The position of the work site 134), the position of the branch 132 and a work instruction message "are displayed. The operator of the trailer 35 can work efficiently according to the display screen of the terminal 14.

  That is, the trailer 35 moves along the route 139 to the work site 133, loads the vehicle 31, and carries it out of the work site 133. At this time, carry-out information that the vehicle 31 has been carried out from the work site 133 is automatically transmitted from the vehicle 31 and the carry-in / out history is updated. The trailer 35 carries the vehicle 31 and enters the work site 134 through the route 140. At this time, carry-in information that the vehicle 31 has entered the work site 134 is automatically transmitted from the vehicle 31 and the carry-in / out history is updated.

  The trailer 35 loads the vehicle 32 and carries it out from the work site 134. At this time, carry-out information that the vehicle 32 has been carried out from the work site 134 is automatically transmitted from the vehicle 32, and the carry-in / out history is updated.

  The trailer 35 carries the vehicle 32 and enters the branch 132 through the route 141. At this time, the warehousing information that the vehicle 32 has entered the branch 132 is automatically transmitted from the vehicle 32, and the warehousing history regarding the vehicle 32 is updated.

  As described above, the trailer 35 can transfer the vehicle 31 and carry out and collect the vehicle 32 in one turn. For this reason, the time for which the trailer 35 is in an empty state can be reduced, and the transport efficiency is improved.

  In FIG. 37, it is determined whether or not the vehicles 31 and 32 are present at the work sites 133 and 134 by comparing the positions of the vehicles 31 and 32 with the work areas 133 and 134 having a certain size. ing. However, by comparing the current position of the vehicle 31 with the center positions Z and W of the work sites 133 and 134, it may be determined whether or not the vehicles 31 and 32 exist at the work sites 133 and 134.

  In the embodiment described above, the vehicle 31 is set in a start lock setting state (hereinafter referred to as start lock) by remote operation, and the vehicle 31 is set in a start lock release state (hereinafter referred to as start unlock) by remote operation. On the other hand, the construction machine 31 does not normally operate in a specific time zone (non-regular time 17:00 to 8:00). If the engine of the construction machine 31 is started and operating during this time period, it is considered that an abnormality such as theft or mischief has occurred. However, it is troublesome to start and lock the vehicle 31 by remote control from the terminal 11 side at the same time zone every day.

  Therefore, data in a specific time zone is transmitted from the terminal 11 to the vehicle 31 in advance, and the vehicle 31 itself enters the start lock state when the specific time zone is reached, and enters the start unlock state when the specific time zone elapses. Embodiments will be described.

  FIG. 38 is a flowchart illustrating a processing procedure according to the embodiment.

  First, when the display screen of the terminal 11 is changed to the “engine restart prohibition setting screen” and the “time zone designation” button is clicked, a display to designate “lock start time Ts” is displayed. In response to this, the content of “lock start time Ts” is input, for example, “PM 17:00”. As a result, the lock start time Ts of the vehicle 31 is set to “PM 17:00” (step 701).

  Next, the message “Specify lock end time Te” is displayed. In response to this, the content of “lock end time Te” is input, for example, “AM8: 00”. As a result, the lock end time Te of the vehicle 31 is set to “AM8: 00” (step 702).

  As a result, the setting data of the lock start time Ts and the lock end time Te is transmitted from the terminal 11 to the vehicle 31 side by electronic mail (step 703).

  On the vehicle 31 side, when the data Ts and Te are received by the communication terminal 56 via the satellite communication antenna 58, the data is stored in the memory in the communication terminal 56 (step 704). A calendar and a timer are provided inside the communication terminal 56 of the vehicle 31. The current time Tn is acquired from the internal calendar and timer (step 705). Next, the current time Tn is compared with the lock start time Ts and the lock end time Te (steps 706 and 707).

  If the current time Tn is the time before the lock start time Ts (PM 17:00) passes and the lock end time Te (AM 8:00) elapses (YES at steps 706 and 707), the communication terminal 56 to the communication controller 54 A start lock setting command is output to the start lock circuit via. For this reason, the relay of the start lock circuit is energized to enter the start lock state. That is, even if the key switch 64 is turned on, the voltage of the in-vehicle battery 63 is not applied to the starter motor and the engine of the vehicle 31 is not restarted (step 708).

  If the current time Tn is a time before the lock start time Ts (PM 17:00) or a time after the lock end time Te (AM 8:00) (determination NO in step 706, determination NO in 707), the communication terminal A start lock release command is output from 56 to the start lock circuit via the communication controller 54. For this reason, the relay of the start lock circuit is de-energized to enter the start unlock state. That is, when the key switch 64 is turned on, the voltage of the in-vehicle battery 63 is applied to the starter motor, and the engine of the vehicle 31 can be restarted (step 709).

  As described above, the vehicle 31 automatically enters the start-lock state when it reaches a specific time zone (17: 00-8: 00) every day, and automatically enters the start-unlock state when the specific time zone elapses.

  In FIG. 38, the vehicle 31 is started and locked every day, but may be locked only on specific days of the week. In this case, specific days of the week (for example, Saturday and Sunday) to be locked for start are set in steps 701 and 702.

  Since the construction machine 31 does not operate during a specific period (for example, the end of the year or the beginning of the year), it is necessary to keep the start-up locked state during this period in order to prevent theft and the like. In addition, in the construction machine 31 to be rented, in order to prohibit the use of breach of contract when the rental period ends, it is necessary to keep the start-up locked state after this period.

  FIG. 39 is a flowchart showing a processing procedure of an embodiment in which the start lock is made after the rental period has elapsed.

  First, a customer (user) applies to the terminal 11 that manages the vehicle 31 for a usage period (for example, AM 3:00 on March 3 to PM 8:00 on March 15) (step 801). Next, the vehicle 31 is delivered to the user (step 802). The application and delivery procedures in steps 801 and 802 can be performed by communication on the Internet 2.

  Next, when the display screen of the administrator's terminal 11 is changed to the “engine restart prohibition setting screen” and the “use period designation” button is clicked, a display to designate “use start date and time Ds” is displayed. In response to this, the content of “use start date and time Ds” is input, for example, “March 3 AM 8:00”. As a result, the use start date and time Ds of the vehicle 31 is set to “March 3 AM 8:00” (step 803).

  Next, a message prompting you to specify "use end date and time De" is displayed. In response to this, the content of “use end date and time De” is input, for example, “March 15 PM 8:00”. As a result, the use end date and time De of the vehicle 31 is set to “March 15 PM 8:00” (step 804).

  As a result, the setting data of the use start date and time Ds and the use end date and time De are transmitted from the terminal 11 to the vehicle 31 side by electronic mail (step 805).

  On the vehicle 31 side, when the data Ds and De are received by the communication terminal 56 via the satellite communication antenna 58, the data is stored in the memory in the communication terminal 56 (step 806). A calendar and a timer are provided inside the communication terminal 56 of the vehicle 31. The current date and time Dn is acquired from the internal calendar and timer (step 807). Next, the current date and time Dn, the use start date and time Ds, and the use end date and time De are compared (steps 808 and 809).

  If the current date and time Dn is the date and time before the use end date and time De (March 15 PM 8:00) passes the use start date and time Ds (March 3 AM 8:00) (YES at Steps 808 and 809) A start lock release command is output from the communication terminal 56 to the start lock circuit via the communication controller 54. For this reason, the relay of the start lock circuit is de-energized to enter the start unlock state. That is, when the key switch 64 is turned on, the voltage of the in-vehicle battery 63 is applied to the starter motor, and the engine of the vehicle 31 can be restarted (step 810).

  If the current date and time Dn is before the use start date and time Ds (March 3 AM 8:00) or after the use end date and time De (March 15 PM 8:00) (NO in Step 808) In step 809, the start lock setting command is output from the communication terminal 56 to the start lock circuit via the communication controller 54. For this reason, the relay of the start lock circuit is energized to enter the start lock state. That is, even if the key switch 64 is turned on, the voltage of the in-vehicle battery 63 is not applied to the starter motor, and the engine of the vehicle 31 is not restarted (step 811). As a result, when the rental period (Ds to De) ends, use of the contract violation is prohibited. Further, the vehicle 31 in which the engine cannot be started can be collected at any time after the rental period (Ds to De) ends (step 812).

  In FIG. 39, in order to lock the start at the end of the year and the start of the year and to unlock the start when the end of the year and the start of the year, the end of the year and the start of the year (Ds to De) are set in steps 803 and 804. The content of 810 may be “starting lock”, and the content of step 811 may be “starting unlock”. As a result, the start-up lock state is entered during the year-end and new-year periods (Ds to De) (step 810), and the start-up unlock state is entered outside the year-end and year-end periods (Ds to De) (step 811).

  38 and 39, data is transmitted from the terminal 11 to one vehicle 31 to automatically start and lock the vehicle 31. However, data may be simultaneously transmitted from the terminal 11 to a plurality of vehicles (for example, the vehicles 31 and 32) to automatically start and lock the plurality of vehicles.

  By combining the embodiment of FIG. 39 and the embodiment of FIG. 37, it is possible to prevent the use of a contract violation after the end of the rental period, and to efficiently collect after the rental period ends. That is, taking the case of FIG. 37A as an example, the customer leaves the vehicle 32 on the work site 134 after the rental period of the vehicle 32 ends. Even if the vehicle 32 is left unattended at the work site 134, the customer is not allowed to breach the contract because it is in the start-up locked state after the rental period (Ds to De) ends. When the time for carrying the vehicle 31 to another work site 133 arrives, the trailer 35 simultaneously carries the vehicle 31 into the work site 133 and carries out and collects the vehicle 32 left at the work site 134. Thereby, the collection work after the rental period of the vehicle 32 is efficiently performed.

  In the present embodiment, a construction machine is mainly assumed as the vehicle 31. In a construction machine, the engine cannot be restarted, so that the swivel body and the work machine cannot be operated. Therefore, by setting the start-up locked state, it is possible to avoid a danger caused by inadvertent operation of the work implement and the swing body. In other words, the present embodiment can be applied to safety measures for preventing malfunctions other than for preventing unauthorized use after the rental period has elapsed. For example, if the operating lever for the working machine of the construction machine 31 is accidentally operated by a person who is not skilled in the operation (for example, an elementary school student), the working machine is inadvertently operated and becomes in a dangerous state. According to the present embodiment, it is possible to prevent a malfunction that the work machine operates inadvertently by setting the start-up locked state.

  By the way, for the managers of companies that undertake civil engineering construction work and have the operator operate the construction machine to carry out civil engineering construction work, the labor management and work process management of the operator are important. For this reason, the operator is obliged to prepare daily work reports. Conventionally, however, the work of reading and inputting the value of the service meter is compulsory, and the work of creating the daily work report is cumbersome and places a heavy burden on the operator. In addition, since the input work is a manual work, an incorrect daily report may be generated due to an input mistake or the like.

  The daily work report is useful information not only for construction companies that are users of construction machines, but also for rental companies that rent construction machines, used distributors that sell used construction machines, and manufacturers that manufacture construction machines. That is, for the rental company, by grasping the history of the daily work report, it is possible to discriminate between customers who are severely used and those who are not, which can be used for customer management. For second-hand dealers that sell used construction machines, it is possible to calculate the past usage time, utilization rate, etc. of construction machines by grasping the history of daily work reports, which can be used to set used car prices. . For manufacturers of construction machinery, the durability of construction machinery can be calculated by grasping the history of daily work reports, which can be used for designing the next model.

  For this purpose, it is necessary to make it easy to obtain information on daily work reports from each terminal in real time.

  Therefore, an embodiment in which daily work reports can be created accurately without imposing a burden on the operator, and information on daily work reports can be easily obtained from the terminal in real time will be described.

  The server terminal 21 is a terminal provided by the manufacturer, and a homepage display screen called “daily work report screen” shown in FIG. 41 is created.

  If it becomes 23:00 every day in the vehicle 31, the operation map, date, and operation time (FIG. 41) until the time 23:00 of the said day will be transmitted automatically. Here, the operation map refers to the output of the service meter provided in the vehicle 31 (whether or not the engine is operating), the calendar provided in the vehicle 31 and the output of the timer at each time, and the engine is operated. It is a table showing the current time. In FIG. 41, the time painted in black corresponds to the time when the engine of the vehicle 31 is operating. The operating time is an accumulated value of the service meter per day (engine operating time per day).

  That is, when automatic transmission is made from the vehicle 31 side and the mobile terminal information such as “operation map”, “date”, and “operation time” automatically transmitted from the server terminal 21 is received, the server terminal 21 uses the mobile body information on the home page. Processing to update the “daily work report screen” is performed.

  For this reason, when the WWW browser is activated on the terminal 11, the homepage data is read from the server terminal 21 via the WWW browser, and the “work daily report screen” is displayed on the display screen of the display device of the terminal 11.

  For this reason, as shown in FIG. 40, the “date”, “operation map”, and “operation time” when the vehicle 31 is operated are updated and displayed with the latest data. The “daily work report screen” includes “customer name” using the vehicle 31 (ABC Civil Engineering Co., Ltd.), “work site name” where the vehicle 31 is operating (Iroha crushed stone site), and daily “work” The “person name” and “special notes” such as maintenance are also displayed. The input procedure of “customer name”, “work site name”, “worker name”, and “special notes” can be performed by communication on the Internet 2. When “customer name”, “work site name”, “worker name”, and “special notes” are input at the customer terminal, the input data is transmitted to the server terminal 21 via the Internet 2 and is input according to the input data. The contents of the “daily work report screen” are updated.

  As described above, the latest daily work report is displayed on the display screen of the terminal 11 in real time, and can be easily obtained from the display screen of the terminal 11. In other words, the daily work report is created accurately without imposing a burden on the operator. As a result, the construction company can accurately perform labor management and work schedule management.

  Further, when the terminal 11 is provided in a rental company, the history of daily work reports can be grasped from the display screen of the terminal 11, and a customer who uses severely can be discriminated from a customer who does not. This can be useful for customer management. For example, it can make a decision not to warn customers or to allow rentals for severe use. Further, by grasping the history of the daily work report, a customer who hardly operates the vehicle 31 can be found, and the customer can be advised to return. In addition, by grasping the history of the daily work report, it is possible to predict when maintenance is performed on the vehicle 31.

  In addition, when the terminal 11 is provided by a second-hand dealer that sells used construction machines, the history of daily work reports can be grasped from the display screen of the terminal 11, and the past usage time, operation rate, etc. of the construction machine can be calculated. can do. Thereby, a used car price can be set appropriately.

  When the terminal 11 is provided by a manufacturer that manufactures construction machines, the daily work report history can be grasped from the display screen of the terminal 11, and the durability of the construction machine can be calculated. This can be used for designing the next model.

  In addition, as shown in FIG. 41, the service meter history may be displayed in a graph on the display screen of the terminal 11. The horizontal axis of the graph of FIG. 41 is the date and time, and the vertical axis is the accumulated value of the engine operating time measured by the service meter. From the graph of FIG. 41, it is possible to predict a maintenance period such as a periodical inspection period.

  It is also possible to allow the display of FIGS. 40 and 41 only on the display screen of the terminal 11 that manages the vehicle 31 and not display FIGS. 40 and 41 on the display screens of terminals other than the terminal 11. . For example, the display of FIGS. 40 and 41 is realized on condition that an input operation of a specific ID number and a specific password (number corresponding to the terminal 11) is performed.

  In the embodiment described above, an operation map is generated and a daily work report is created every time one day elapses, and the daily work report screen is updated. However, the unit of the operation map is not limited to one day and may be an arbitrary period. For example, an operation map may be generated on a monthly basis to create a “work monthly report” and update the “work monthly report screen”. It is also possible to create work reports for each rental period. In other words, an operation map may be generated for each rental period to create a “work report” and update the “work report screen”.

  By the way, when the construction machine 31 is rented, it is generally rented by setting a charge according to the length of the rental period. However, it is also true that there are both customers who operate the construction machine 31 for a long time and customers who hardly operate the construction machine 31 even during the rental period of the same length. In this case, charging the same rental fee to both parties is unfair and unreasonable.

  Therefore, the charge amount may be automatically calculated according to the length of the engine operating time.

  That is, the server terminal 21 receives the data “operating time” automatically transmitted from the vehicle 31 and performs a calculation process for accumulating the operating time up to the present time. On the other hand, the correspondence between the accumulated value of operating hours and the charge amount is set in advance. Therefore, the billing amount corresponding to the accumulated value of the operating hours up to now is calculated from this correspondence. The server terminal 21 performs processing for updating the “daily work report screen” on the homepage with the latest billing amount.

  For this reason, when the WWW browser is activated on the terminal 11, the homepage data is read from the server terminal 21 via the WWW browser, and the “work daily report screen” is displayed on the display screen of the display device of the terminal 11. Suppose that the rental period is from January 21 to January 30. In the “daily work report screen” of FIG. 41, the accumulated value of the operation time of the rental period (January 21 to January 30), that is, the total value of the daily “operation time” during the rental period (49 hours and 6 minutes). ) XXXXXXX yen corresponding to) is displayed. As a result, the customer can easily obtain information on the billing amount corresponding to the time when the engine is operating during the rental period on the screen in real time.

  In the embodiment described above, the billing amount is simply calculated according to the accumulated value of the operating time.

  In reality, however, the demand for construction machinery varies greatly depending on the time. Specifically, demand for construction machinery increases during periods when construction is concentrated. Also during the day, demand is greater during the daytime than during the night. Therefore, the billing amount may be set according to the demand for construction machinery. Specifically, the billing amount can be set lower when the work is concentrated. In addition, the billing amount can be set higher during the daytime hours, and the billing amount can be set lower during the nighttime hours. Therefore, the billing amount can be determined in consideration of the operation time, the operation time zone, and the operation time as well as the accumulated value of the operation time.

  In the present embodiment described above, the communication means 1 including the Internet 2 is assumed. However, the communication means 1 of the present invention is not limited to this, and the communication means 1 is constructed by communication means not including the Internet 2. It is possible. In short, if communication equivalent to that described in the embodiment is performed, it can be replaced with another communication means. In the present embodiment, the communication means 1 that combines wireless communication and wired communication is assumed. Of course, only wireless communication may be used, or only wired communication may be used.

  Furthermore, although the present embodiment assumes a presentation format in which moving body information is displayed as image data on a terminal, the present invention may present moving body information by outputting it as a voice to the terminal. In addition, the terminal may be printed out as print data. In short, the presentation format of mobile information at the terminal is arbitrary.

  In the present embodiment, it is assumed that a plurality of mobile objects including mainly construction machines are managed and monitored. However, the present invention is not limited to this, and general automobiles, motorcycles, and the like are managed. It can also be applied to monitoring.

FIG. 1 is a diagram illustrating a communication system according to the present embodiment. FIG. 2 is a diagram illustrating a configuration of a vehicle body of the moving body according to the embodiment. FIG. 3 is a diagram showing a screen display example of a display device mounted on a moving body. FIG. 4 is a diagram illustrating a screen display example of a display device mounted on a moving body. FIG. 5 is a diagram illustrating a screen display example of a display device mounted on a moving body. FIG. 6 is a diagram illustrating a state in which a moving body equipped with a camera works. FIGS. 7A, 7B, and 7C are timing charts for explaining the power saving operation performed in the moving body. FIGS. 8A, 8 </ b> B, and 8 </ b> C are diagrams used to describe an embodiment in which a power saving operation is performed. FIG. 9 is a diagram illustrating a situation in which automatic transmission is performed from a moving body. FIG. 10 is a diagram for explaining a situation where automatic transmission is performed from a moving body. FIG. 11 is a graph used for explaining an embodiment in which automatic transmission from a moving body is performed. FIG. 12 is a graph used for explaining an embodiment in which automatic transmission from a moving body is performed. FIG. 13 is a diagram illustrating an embodiment in which a power saving operation is performed. FIG. 14 is a flowchart showing a processing procedure when automatic transmission from a moving body is performed. FIG. 15 is a flowchart illustrating a procedure of processing in which the display transitions according to the communication state. FIGS. 16A, 16 </ b> B, 16 </ b> C, and 16 </ b> D are diagrams illustrating how the display mode of the moving object icon changes according to the communication state. FIG. 17 is a diagram for explaining how data is rearranged according to the communication state. FIG. 18 is a flowchart illustrating a procedure of processing in which the display transitions according to the communication state. FIG. 19 is a flowchart illustrating a procedure of processing in which the display transitions according to the communication state. FIG. 20 is a flowchart illustrating a procedure of processing in which the display transitions according to the communication state. FIG. 21 is a diagram illustrating a connection mode between a communication terminal in the vehicle body and another device. FIG. 22 is a diagram illustrating a connection mode between a communication terminal in the vehicle body and another device. FIG. 23 is a diagram for explaining how the duty ratio of the power saving operation changes. FIG. 24 is a diagram for explaining how the duty ratio of the power saving operation changes. FIG. 25 is a graph showing how the activation cycle of the communication terminal changes. FIGS. 26 (a), (b), (c), (d), (e), and (f) are timing charts for explaining the automatic transmission from the moving body. FIG. 27 is a diagram showing a display example of the display screen of the terminal. FIG. 28 is a diagram showing a display example of the display screen of the terminal. FIG. 29 is a diagram showing a display example of the display screen of the terminal. FIG. 30 is a diagram showing a display example of the display screen of the terminal. FIG. 31 is a diagram showing a display example of the display screen of the terminal. FIG. 32 is a diagram showing a display example of the display screen of the terminal. FIG. 33 is a sequence diagram illustrating a communication control process according to the embodiment. FIG. 34 is a diagram showing a display example of the display screen of the terminal. FIG. 35 is a diagram showing an arrangement example of the storage / reception area. FIG. 36 is a diagram showing a display example of the display screen of the terminal. FIGS. 37A and 37B are diagrams illustrating the trailer conveyance path. FIG. 38 is a flowchart showing a start lock processing procedure. FIG. 39 is a flowchart showing a start lock processing procedure. FIG. 40 is a diagram showing a display example of the display screen of the terminal. FIG. 41 is a diagram showing a display example of the display screen of the terminal.

Explanation of symbols

1 Communication means (Internet 2, network control station 7, satellite earth station 8, feeder line 4, communication satellite 9, wireless communication line 5)
11, 12 terminal 21, 22 server terminal 31-35 mobile body (mobile work machines 31-33, service car 34, mobile work machine carrier 35)
55 Car navigation device 56 Communication terminal 57 GPS sensor 60 Camera 62 Sensor group

Claims (13)

In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when electrical connection with a power source is turned on, and a time measuring means for measuring time are provided in the construction machine,
When the engine of the construction machine is stopped, the electrical connection between the power source and the communication device is performed each time the time measured by the time measuring means coincides with the flight time of the communication satellite. A construction machine communication device characterized in that a means for turning on is provided in the construction machine. The communication device for a construction machine according to claim 1, wherein the time of flight of the communication satellite is received from outside. In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when electrical connection with a power source is turned on is provided in the construction machine,
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined period, and provided with means for transmitting the machine information of the construction machine when turned on,
The communication device for a construction machine, wherein the on / off period is a duration of a signal for calling from the communication satellite to the communication device. In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when an electrical connection with a power source is turned on, and a means for measuring the travel time are provided in the construction machine,
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined period, and provided with means for transmitting the machine information of the construction machine when turned on,
The construction machine communication apparatus, wherein the duty ratio of the on-off cycle is reduced as the operation time of the construction machine becomes shorter. In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when the electrical connection with the power source is turned on, and a means for measuring the battery voltage are provided in the construction machine,
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined period, and provided with means for transmitting the machine information of the construction machine when turned on,
A construction machine communication device, wherein the duty ratio of the on-off cycle is reduced as the battery voltage decreases. In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when an electrical connection with a power source is turned on, and a communication confirmation means for confirming whether communication is being performed after the engine key switch is turned off. In the construction machine,
A construction machine comprising: a means for stopping power supply to the communication device after a predetermined time has elapsed since the end of communication when it is confirmed by the communication confirmation means that communication is being performed after the engine key switch is turned off. Communication device. In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when an electrical connection with a power source is turned on; a position detecting means for detecting a position of the construction machine; and an engine start state of the construction machine And a sensor for detecting
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined cycle, and provided with a sleep unit that transmits the machine information of the construction machine when turned on,
The construction machine communication device, wherein when the sensor detects that the engine has started during activation of the sleep means, the construction machine position information obtained by the position detection means is automatically transmitted. In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
The construction machine is provided with a communication device capable of communicating with the terminal device when an electrical connection with a power source is turned on, and a position detection means for detecting the position of the construction machine,
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined cycle, and provided with a sleep unit that transmits the machine information of the construction machine when turned on,
When the position detected by the position detecting means changes during the activation of the sleep means, the on / off duty ratio is changed in accordance with the change amount. In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A communication device capable of communicating with the terminal device when an electrical connection with a power source is turned on, and a detection means for detecting information on the construction machine are provided in the construction machine,
When the engine of the construction machine is stopped, the communication device is turned on and off at a predetermined cycle, and a sleep unit that transmits the machine information of the construction machine when turned on and a unit that measures the battery voltage are provided,
A construction machine communication device characterized in that, when the battery voltage falls below a predetermined value, information on the construction machine is automatically transmitted and the sleep means is activated. In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
A sensor that detects an abnormality that has occurred in the construction machine, and a terminal unit that receives an abnormality signal detected by the sensor as an error code are provided in the construction machine,
Only when the error code currently input to the terminal means is different from the previous error code based on the abnormality signal detected by the sensor, the currently input error code is automatically transmitted. A communication device for a construction machine. In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
Position detection means for detecting the position of the construction machine is provided in the construction machine,
The moving speed of the construction machine is calculated based on the difference value between the position detected last time by the position detecting means and the position detected this time, and the sampling time, and the moving speed obtained as a result of the calculation is a set value. A construction machine communication device that automatically transmits the position information of the construction machine when exceeding the above. The communication device for a construction machine according to claim 11, wherein the set value of the moving speed is equal to or higher than a maximum speed of the construction machine itself. In a construction machine communication device that performs communication via a communication satellite between a construction machine and a terminal device,
Position detection means for detecting the position of the construction machine, and start lock means for preventing the engine from starting, are provided in the construction machine,
The construction machine communication device, wherein when the engine is started with the engine being locked by the start lock means, the position information of the construction machine is automatically transmitted.

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