JP2010009443A - Onboard device, and vehicle operation control system using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an onboard device can save a communication cost for transmitting location information to an own vehicle external device, and a vehicle operation control system can display a detail moving history, using the onboard device, in the onboard device and the vehicle operation control system. <P>SOLUTION: The onboard device concerned in the claim 1 includes a location information acquisition means for acquiring the location information of the vehicle, a travel state detecting means for detecting an advancing-directional change of the vehicle, and a radio communication means communicable with the own vehicle external device, and transmits the location information obtained by the location information acquisition means, to the own vehicle external device, via the radio communication means, when at least an advancing direction detected by the travel state detecting means varies by a prescribed value or more. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an in-vehicle device that transmits position information of a vehicle or the like to an external device of the host vehicle, and a vehicle operation management system using the in-vehicle device.

  In recent years, OA network technology has been introduced for operation management of business records for commercial vehicles, and a vehicle operation management system that manages operation of vehicles using operation data obtained by operation managers through data communication has been introduced and put into practical use. (See Patent Document 1).

  The vehicle operation management system disclosed in Patent Document 1 receives a GPS signal and provides GPS for the purpose of providing a vehicle operation management system capable of accurately creating a daily report and the like without having to bother the driver. A GPS receiver that detects vehicle position information and time information based on the signal, a travel distance detector that detects the travel distance of the vehicle, and positional information and time information from the GPS receiver, and travel distance from the travel distance detector. An arithmetic processing device to which information is input, an external device that outputs external information to the arithmetic processing device, a storage device that is connected to the arithmetic processing device and stores the information output from the arithmetic processing device in a storage medium, The vehicle includes a wireless communication device that is connected to an arithmetic processing device and transmits the information to a server.

  And since the said vehicle operation management system transmits information to a server at any time with a radio | wireless communication apparatus, an operation manager grasps | ascertains the operation conditions, such as a driving position of a vehicle, in real time with the personal computer of the office connected to the server by the internet. Is possible.

Thus, conventionally, this type of vehicle operation management system transmits (reports) movement data of a vehicle, which is measured by GPS, from a vehicle by a metered packet communication at regular time intervals, and coordinates the time and position information. The movement history is superimposed on the map information on the office computer.
JP-A-9-68436

  Therefore, if the transmission interval (reporting interval) is shortened, a detailed movement history can be grasped, but the communication cost increases. On the other hand, if the transmission interval is lengthened, the communication cost can be saved, but the detailed movement There was a problem that the history could not be displayed.

  Further, if the movement history is stored in the storage medium such as a memory card and displayed on a personal computer at the office after returning to the office, it will lack immediacy.

  The present invention has been devised in view of such circumstances, and an in-vehicle device that saves communication costs for reporting position information to the external device of the host vehicle, and a detailed movement history can be displayed using this in-vehicle device. An object of the present invention is to provide a vehicle operation management system.

  In order to achieve such an object, the invention according to claim 1 includes position information acquisition means for acquiring position information of a vehicle, travel state detection means for detecting a change in the traveling direction of the vehicle, an external device of the host vehicle, and wireless communication. An in-vehicle device including a communicable wireless communication unit, and at least when the traveling direction of the vehicle detected by the traveling state detection unit changes by a predetermined value or more, the position information acquired by the position information acquisition unit is wirelessly It transmits to the said own vehicle external device via a communication means, It is characterized by the above-mentioned.

  According to a second aspect of the present invention, in the in-vehicle device according to the first aspect, the position information acquisition means receives the GPS signal and detects the position information and time information of the vehicle based on the GPS signal. In the GPS receiving means, the running state detecting means detects a change in the traveling direction of the vehicle from a relationship between a change in latitude and longitude accompanying a movement of the vehicle detected by the GPS receiving means and a change in time. And

  According to a third aspect of the present invention, in the in-vehicle device according to the first or second aspect, a predetermined operation area can be set, and in the set operation area, the vehicle external device can be set. It is possible to limit the transmission of the position information.

  Furthermore, the invention according to claim 4 is the in-vehicle device according to any one of claims 1 to 3, wherein the running state detecting means is at least one of stopping and reversing the vehicle. When the vehicle is detected and a stop state and / or a reverse state of the vehicle is detected, the position information acquired by the position information acquisition unit is transmitted to the external device of the host vehicle.

  According to a fifth aspect of the present invention, there is provided a vehicle operation management system using the in-vehicle device according to any one of the first to fourth aspects, wherein the host vehicle external device is a server. And

  According to the invention according to each claim, it is possible to save a communication fee as compared with the conventional art.

  In the invention according to claim 1, for example, when the vehicle is bent at a steep angle, the position can be grasped. In the invention according to claim 4, for example, when the backward movement of the vehicle is detected, the vehicle repeatedly moves forward and backward. In such a case, the position can be grasped, and when the stop of the vehicle is detected, the position can be grasped when the vehicle stops, for example.

  And according to the invention which concerns on Claim 3, the further saving of a communication charge is attained.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a block diagram of a vehicle operation management system according to an embodiment of claim 5 using an in-vehicle device according to an embodiment of claims 1, 2, and 4. The vehicle-mounted device 3 is mounted on the vehicle 1.

  The in-vehicle device 3 includes, in the telematics ECU 7, GPS receiving means for receiving a GPS signal from a GPS (Global Positioning System) satellite (not shown) by the GPS antenna 5 and positioning the position information and time information of the vehicle 1 in the telematics ECU 7. The ECU 7 measures the position information of latitude and longitude associated with the movement of the vehicle 1 based on the GPS signal, and measures the time information based on the GPS signal.

  The in-vehicle device 3 is connected to a display unit 9 composed of a display or the like attached to the instrument panel of the vehicle 1. On the map displayed on the display unit 9, position information (movement of latitude and longitude) The position of the vehicle 1 is displayed based on the data.

  The in-vehicle device 3 includes a communication interface unit 11, and a memory card (storage medium) 13 is detachably inserted into a card slot (not shown) of the in-vehicle device 3. Furthermore, an input terminal 15 for inputting a work state (work content) at each work point is connected to the in-vehicle device 23. The input terminal 15 is connected to a work state in a vehicle stop state, that is, as an example. Four input keys 17, 19, 21, and 23 are provided for setting and canceling "loading", "unloading", "break", and "standby".

  Then, with the memory card 13 set in the in-vehicle device 3, the driver circulates a plurality of work points according to a route designated in advance, stops the vehicle 1 at each work point, and performs loading and unloading. At this time, when one of the input keys 17, 19, 21, and 23 of the input terminal 15 is pressed to set the work state, the telematics ECU 7 sets the position information and time information of the vehicle 1 at that time and the time information. The working state (for example, loading) is recorded in the memory card 13 as vehicle information (operation data).

  In addition, the vehicle 1 and the server 25 that is the host vehicle external device of the present embodiment are connected by wireless packet communication as an example, and the telematics ECU 7 determines the position of the vehicle from the GPS satellite when the vehicle 1 starts to travel. Information and time information are transmitted to the server 25 side via the communication interface unit 11 and recorded in the memory card 13, and the driver presses one of the input keys 17, 19, 21, 23 as described above. Each time the operation state is set by operation, the telematics ECU 7 sends the position information and time information of the vehicle 1 at that time and the set operation state to the server 25 via the communication interface unit 11 as vehicle information ( Operation data) is transmitted (reported).

  On the server 25 side, vehicle information transmitted from the vehicle 1 is sequentially input and recorded.

  Further, the server 25 and a personal computer (terminal; hereinafter referred to as “PC”) 27 in the office of the operation manager of the vehicle 1 are connected via the Internet 29. The vehicle information (operation data) transmitted to can be quickly grasped via the personal computer 27.

  Further, in the present embodiment as well, the movement history of the vehicle 1 is connected to the personal computer 27 by connecting the time and coordinates of the position information (movement data) of the latitude and longitude of the vehicle 1 transmitted (reported) to the server 25. Although it can be displayed superimposed on the map information above, the position information (movement data) of the latitude and longitude of the vehicle 1 measured by the GPS receiving means as described above is sent from the vehicle 1 to the server at regular time intervals. If the transmission interval (reporting interval) is short, the detailed movement history can be grasped but the communication cost increases. If the transmission interval is increased, the communication cost can be saved, but the detailed movement can be saved. The history cannot be displayed.

  However, if the vehicle 1 is traveling straight on a straight road, the transmission interval is increased even if the position information (movement data) of the latitude and longitude of the vehicle 1 is not transmitted to the server 25 at a short transmission interval. Even a detailed movement history can be displayed.

  Therefore, the in-vehicle apparatus according to the present embodiment and the vehicle operation management system using the on-vehicle apparatus have the following characteristics so that a detailed movement history can be displayed while saving the communication cost for transmitting the position information to the server 25. Have

  Conventionally, the GPS receiving means always performs measurement of changes in latitude and longitude associated with movement of the vehicle 1 and changes in time based on GPS signals at short intervals (for example, at intervals of 2 seconds). Therefore, the telematics ECU 7 determines the positional relationship (change in latitude and longitude) associated with the movement of the vehicle 1 measured last time and the previous time and the current measurement position (latitude and longitude) measured (positioned) in step 1 of FIG. Based on this, in step 2, whether or not the traveling direction of the vehicle 1 has changed is always vector-calculated at short intervals. Thus, in this embodiment, telematics ECU7 has a function as a running state detection means.

  Only when it is determined in step 3 that the traveling direction of the vehicle 1 has changed by a predetermined value or more (for example, the traveling direction of the vehicle 1 has changed by 30 ° or more), the telematics ECU 7 performs a server operation via the communication interface unit 11. 25, the current position information and time information of the vehicle 1 are transmitted (step 4). If the change in the traveling direction of the vehicle 1 is less than a predetermined value, the process returns to step 1 without transmitting to the server 25. Yes. After step 4, the telematics ECU 7 replaces the direction data to be compared (step 5) and returns to step 1.

  In addition, although not shown in the flowchart of FIG. 2, in the present embodiment, in addition to the change in the direction of the vehicle 1, the positional relationship (latitude and longitude changes) associated with the movement of the vehicle 1 measured last time and the previous time and the current positioning. From the position (latitude, longitude), whether the vehicle 1 has stopped or whether the vehicle 1 has moved backward (back) is calculated by vector calculation. Even when the vehicle 1 stops or retreats, the telematics ECU 7 transmits the position information and time information of the vehicle 1 at that time to the server 25 via the communication interface unit 11.

  Since the present embodiment is configured as described above, the telematics ECU 7 of the in-vehicle device 3 firstly stores the vehicle position information and time information from the GPS satellites via the communication interface unit 11 when the vehicle 1 starts to travel. 25 and sent to the memory card 13.

  Further, every time the driver presses any of the input keys 17, 19, 21, and 23 to set a working state during operation, the telematics ECU 7 sends the server 25 to the server 25 via the communication interface unit 11 at that time of the vehicle 1. The position information and time information and the set work state are transmitted (reported) as vehicle information (operation data), and the vehicle information is recorded in the memory card 13. The operation manager of the vehicle 1 can quickly grasp the vehicle information (operation data) transmitted to the server 25 via the personal computer 27.

  On the other hand, as described above, the position information (movement data) of the latitude and longitude of the vehicle 1 measured by the GPS receiving means is transmitted from the vehicle 1 to the server 25, and the movement history of the vehicle 1 is displayed on the personal computer 27 as map information. As described above, the telematics ECU 7 measures and measures (positioning) the positional relationship (latitude and longitude changes) associated with the movement of the vehicle 1 measured the previous time and the previous time based on the GPS signal. Based on the current measurement position (latitude and longitude), vector calculation is always performed at short intervals to determine whether or not the traveling direction of the vehicle 1 has changed (steps 1 and 2 in FIG. 1).

  When the traveling direction of the vehicle 1 changes by a predetermined value or more, such as when the vehicle 1 is bent at a steep angle, the telematics ECU 7 sends the position information of the vehicle 1 at that time to the server 25 via the communication interface unit 11. And the time information are transmitted (steps 3 and 4), the direction data to be compared in step 5 is replaced, and the process returns to step 1.

  If the telematics ECU 7 determines that the change in the traveling direction of the vehicle 1 is less than the predetermined value in step S3, the telematics ECU 7 returns to step 1 without transmitting the position information and time information.

  Further, the telematics ECU 7 determines the vehicle from the positional relationship (latitude and longitude changes) associated with the movement of the vehicle 1 measured last time and the previous time and the current positioning position (latitude and longitude) together with the change in the direction of the vehicle 1. 1 is stopped or the vehicle 1 is moved backward (back), and when the vehicle 1 stops or moves backward, the server 25 is connected to the server 25 via the communication interface unit 11 at that time. Send location information and time information.

  As described above, according to the present embodiment, the position information and time information of the vehicle 1 at that time and the set work state are stored in the server 25 when the vehicle 1 starts running or when the input keys 17, 19, 21, and 23 are operated. It is transmitted as vehicle information (operation data). In other cases, the vehicle 1 is sent to the server 25 at that time only when the vehicle 1 bends at a steep angle, repeats forward and backward, or stops. Since the so-called “variable interval report” for transmitting the position information and the time information is used, the number of transmissions is reduced as compared with the conventional case.

  FIG. 3 shows a comparison between the display of the movement history according to the present embodiment when the road is turned and the display of the movement history when the position information is transmitted at a fixed interval in the past. Regardless, in this embodiment, only three transmissions are necessary. In fact, the movement history in the straight traveling state is displayed in detail in the same manner as in the past.

  Further, in the conventional example, there is a case where a bent intersection cannot be grasped by the movement history from the point A to the point B in FIG. On the other hand, according to the present embodiment, it is possible to reliably grasp an intersection that is bent after a straight run.

  FIG. 4 shows a comparison between the display of the movement history according to the present embodiment when stopping at a parking area, a store, a delivery destination, etc., and the display of the movement history when position information is transmitted at a fixed interval in the past. Despite the fact that the conventional method has transmitted eight times, there is a case where it is not possible to grasp whether the vehicle has stopped in the parking area or is congested. Compared to this, in the present embodiment, only five transmissions are required, and it is possible to reliably grasp the fact that the vehicle has moved to the parking area.

  As described above, according to the present embodiment, the communication fee can be saved as compared with the conventional case, and the position of the vehicle 1 can be reliably determined when the vehicle 1 bends at a steep angle, repeats forward and backward, or stops. Since the time can be grasped, a detailed movement history can be displayed.

  In addition to the configuration of the above embodiment, as in one embodiment of the present invention, a predetermined operation area can be set, and transmission of position information to the server by the in-vehicle device is restricted in the set operation area. May be.

  That is, for example, when there is a designated area where vehicles pass through on a daily basis within the landmark area, since the operation manager has already grasped the movement history in these operation areas, bother the position information to the server, There is no need to display this on a computer.

  Therefore, as described above, when traveling in these designated areas, settings such as stopping transmission of position information to the server by the in-vehicle device or increasing the transmission interval may be possible.

  Thus, according to this embodiment, the intended purpose can be achieved and the communication fee can be further reduced, as in the above-described embodiment.

  In addition, for example, when the vehicle passes through a hill of a mountain road, the vehicle turns at a steep angle, and in the embodiment of FIG. 1, position information is transmitted to the server every time a curve is turned.

  Therefore, in this case as well, the transmission of the position information to the server by the in-vehicle device may be restricted using the mountain road spelling area as the operation area.

  For example, the predetermined operation area may be set directly on the in-vehicle device by providing an input device or the like on the in-vehicle device, or from the personal computer of the operation manager's office via the own vehicle external device such as a server. May be set in the in-vehicle device.

  Furthermore, instead of such a method of setting the operation area, transmission of position information to the server may be canceled on the condition that “the turn signal is not issued” as an example.

  That is, for example, when a vehicle turns right at an intersection in a city area, the driver takes a winker, but when passing through a zigzag fold on a mountain road, the driver does not take a winker for each curve.

  Therefore, as described above, there is an advantage that unnecessary transmission can be eliminated by canceling the transmission of the position information to the server on the condition that “the blinker has not been issued”.

  In the embodiment described above, based on the GPS signal, a vector calculation is performed to determine whether or not the traveling direction of the vehicle 1 has changed from the measurement of changes in latitude and longitude as the vehicle 1 moves and changes in time. However, instead of the GPS signal, for example, a direction sensor, a tilt sensor, or the like may be attached to the vehicle, and a change in the traveling direction of the vehicle may be detected based on these detection signals.

  Further, the determination of the stop or the reverse of the vehicle may be made based on the vehicle speed, the gear position, or the like provided with a vehicle speed acquisition unit or a gear position acquisition unit in the in-vehicle device, for example.

  And although the said embodiment uses the personal computer as a terminal, a terminal is not restricted to a personal computer, For example, other terminals, such as a mobile phone, may be sufficient, The communication method to a terminal is not restricted to the internet, E-mail etc. Other communication methods may be used.

  Moreover, in the said embodiment, although the point which detects the change of the advancing direction is made into three points of present, the last time, and the last time, you may detect from not only this but 5 points | pieces etc., for example.

  Further, for example, a vehicle speed acquisition unit may be provided in the in-vehicle device, and the interval between the points where the change in the traveling direction is detected may be changed according to the vehicle speed. For example, the interval at high speed travel is made longer than the interval at low speed travel.

  Furthermore, for example, a vehicle speed acquisition unit may be provided in the in-vehicle device, and the predetermined value for detecting the traveling direction of the vehicle may be changed according to the vehicle speed. For example, the predetermined value at high speed traveling is made smaller than the predetermined value at low speed traveling.

  In other words, there is a possibility that the change in the direction of travel of the vehicle is smaller when traveling at high speeds than when traveling at low speeds. I can expect.

In the embodiment, the transmission of the position information to the external device of the host vehicle is performed by pressing an input key, a predetermined time interval, a change in the traveling direction of the vehicle, a stop, and a backward movement. In the case of only a change in the direction of travel, the change in the direction of travel of the vehicle and other conditions (for example, a constant time interval, a constant distance interval, etc.) can be changed as necessary. The present invention can be applied not only to cars (trucks and the like) but also to construction machines, for example.

It is a block diagram of the vehicle operation management system which concerns on one Embodiment of Claim 5 using the vehicle-mounted apparatus which concerns on one Embodiment of Claim 1, Claim 2 and Claim 4. It is a control flowchart of a vehicle operation management system. It is a comparison figure with the display of the movement history by this embodiment, and the display of the conventional movement history. It is a comparison figure with the display of the movement history by this embodiment, and the display of the conventional movement history.

Explanation of symbols

1 Vehicle 3 On-vehicle device 5 GPS antenna 7 Telematics ECU
9 Display unit 13 Memory card 15 Input terminal 25 Server 27 Personal computer 29 Internet

Claims (5)

Position information acquisition means for acquiring vehicle position information;
Traveling state detection means for detecting a change in the traveling direction of the vehicle;
An in-vehicle device provided with a wireless communication means capable of wireless communication with the own vehicle external device,
At least when the traveling direction of the vehicle detected by the traveling state detection unit changes by a predetermined value or more, the position information acquired by the position information acquisition unit is transmitted to the external device of the host vehicle via the wireless communication unit. In-vehicle device. The position information acquisition means is a GPS reception means for receiving GPS signals and detecting vehicle position information and time information based on the GPS signals.
2. The traveling state detecting unit detects a change in a traveling direction of the vehicle from a relationship between a change in latitude and longitude accompanying a movement of the vehicle detected by the GPS receiving unit and a change in time. The in-vehicle device described in 1.   The in-vehicle system according to claim 1 or 2, wherein a predetermined operation area can be set, and transmission of position information to the external device of the host vehicle can be restricted in the set operation area. apparatus.   The traveling state detection means detects at least one of stop and reverse of the vehicle, and detects the position information acquired by the position information acquisition means when the stop state and / or reverse state of the vehicle is detected. The in-vehicle device according to any one of claims 1 to 3, wherein the in-vehicle device is transmitted to an external device. 5. A vehicle operation management system using the in-vehicle device according to claim 1, wherein the host vehicle external device is a server.

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