KR100847017B1 - Command supporting system, command terminal, and command center device - Google Patents

Abstract

In order to provide a command support system capable of supporting an appropriate command, the command terminal 5 transmits information on the current position and the work status of the person in charge of the work in possession thereof to the location information processing device 1 and the command device 2. do. At the time of command issuance, the command apparatus 2 selects and displays the command terminal 5 which is a candidate for sending a command, referring to the current position of each command terminal 5 and the work status of the work person in charge. The command person determines the command terminal 5 to which the command is to be transmitted by referring to this indication.

Description

Command support system, command terminal and command center device {COMMAND SUPPORTING SYSTEM, COMMAND TERMINAL, AND COMMAND CENTER DEVICE}

The present invention relates to a command support system, a command terminal and a command center equipment for transmitting a work command to a person in charge, such as a security officer, in particular a command support system suitable for a system for commanding a search for a mobile chain search target, a command terminal. And a command center apparatus.

In the case of a company employing a work person who performs work in a place where a security company, such as a security company, moves out of the place of business, the center of the work person's movement status (current position or work situation) can be identified from the center using a mobile phone. For example, in accordance with the request from the customer who has the expense contract, select a contact person and instruct the selected contact person.

In this case, the commander of the center selects a worker in consideration of various conditions based on the current location information reported by each of the multiple worker and the reporting of the work situation.

 In particular, in recent years, the use of services for the search protection of moving objects, such as roaming patients, children, stolen vehicles, etc. has been increasing, it is required to develop a system suitable for the search personnel (command also move) search commands for the search target.

 However, in the conventional command method, there is a problem in that proper command becomes difficult when the work person increases because the work of the commander is too complicated and the number of expenses contracts (ie, the number of customers) increases in the future.

 In addition, if there are several task managers involved in the order 1, or if a task manager to be protected is instructed later, each mobile worker can rent a mobile terminal and can easily access the work managed by the center. It is necessary to make sure. However, there is a problem in that the safety of the work content is deteriorated if the mobile terminal is stolen if it is made freely accessible.

 Furthermore, in the case of searching for a moving object to be searched, etc., it is necessary to accurately grasp the current position of the searched object and to instruct the search according to the moving situation. However, there is a conventional positioning system using a GPS (Global Positioning System) using a satellite or a cellular (PHS; Personal Handy-Phone System) using a small cell. For example, when a GPS is indoors, a signal from a GPS satellite is used. Cannot be received and accurate measurements are not possible. In the PHS, when moving at high speed, handover cannot be performed properly and position information cannot be detected.

 The present invention has been made in view of the above-mentioned situation, and an object of the present invention is to provide a command support system capable of supporting a proper command of a command officer, and also to accurately grasp the position of both the search target and the work officer when searching for a moving object. It is another object of the present invention to provide a command support system that enables a command according to the state of the government.

 In addition, another object of the present invention to provide a command support system to secure the work content.

1 is a configuration block diagram of a command support system according to an embodiment of the present invention.

2 is a block diagram of a positional information processing apparatus.

3 is a block diagram of a command apparatus;

4 is a block diagram of a business terminal.

5 is a block diagram of a command terminal.

6 is a block diagram of a calling terminal.

7 is an explanatory diagram showing a display example of command support of the command apparatus;

8 is an explanatory diagram showing an example of a display screen of a command terminal;

9 is an explanatory diagram showing a configuration for position detection of the present invention;

Fig. 10 is a flow chart showing processing relating to suspension of a search command.

11 is an explanatory diagram showing an operation flow relating to acquisition of positional information.

The present invention for solving the above-mentioned problems is a command support system including a command center device arranged in a center for instructing a person in charge and a command terminal owned by each person in charge. Means for acquiring and managing current work state information of the person in charge, and means for transmitting the information about the current position and the work state to the command center device, wherein the command center device transmits from the command terminal of each person in charge. Means for managing information about the current position of each command terminal and the work status of the person in charge, and the command terminal to be the place where the command is transmitted with reference to the information about the current position of each terminal and the work state of the person in charge. And means for selecting candidates.

 As a result, the command person stores information on the current location of each command terminal, the time at which the report was made, and the current working status of the person in charge with the command terminal. It is possible to provide the commander with candidates for the command terminal to become a commander, and appropriate commands are supported.

 In addition, the present invention for solving the problem in the above-mentioned conventional example is a command terminal carried by a person in charge, and means for acquiring current position information, means for managing information on the work status of the person in charge, and a command center apparatus. Means for transmitting the current position information and information on the working status of the person in charge, and means for receiving a command from the command center device and obtaining the command content from the command center device.

 The present invention for solving this problem in the conventional example is a command support system including a command center device disposed on the center side for commanding a person in charge and a command terminal owned by each person in charge, and the command terminal is set in advance. Means for managing a unique terminal identifier and obtaining current location information, means for recording the acquisition time of the current location, means for managing information on the current working status of the person in charge, the terminal identifier and current location, and Means for transmitting information on the work status to the command center device, and means for receiving a command from the command center device and acquiring the contents of the work relating to the command, wherein the device in the command center has its terminal identifier at the command terminal. And information on the current location, the status of the person in charge, and the means for receiving and managing it, when issuing a command. Means for selecting a candidate of a command terminal which is a command transmission destination by referring to the information on the current position of each terminal and the work status of the person in charge; a terminal of the command terminal of the command transmission target selected by the person in charge of the center from the candidate of the command terminal; Means of registering the information of the work content related to the command issued by the identifier; when a request for the work content is requested from the command terminal side; when the terminal identifier of the command terminal is related to the work content information; Means for transmitting to the command terminal. As a result, it is possible to improve the safety of the work information.

 In addition, the present invention for solving the problems of the conventional example, the terminal to be included in the search target as a command support system to support the selection when selecting a person searching for a mobile object to be searched among a number of people in motion And a command terminal device possessed by each person in charge, and a command center device disposed in a center for sending a command to the person in charge, wherein the command center device is a means for acquiring the current position information from the target terminal, and each person in charge at each command terminal. Means for acquiring and managing information on the current position information and work status of each person as dynamic information of each person in charge, and a person in a predetermined range of the current position of the terminal to be included in the search object by referring to the information of each person in charge. The preliminary selection means for selecting a and the dynamic information of the representative selected by the preliminary selection means; Refer to the information on the up state and the contact to be a search command, characterized in that further selection means for selecting the art and transmits the search command to the command to be a representative of the selected search reference terminal for carrying.

 In recent years, however, there is a so-called RAKE reception for establishing communication with various base stations to reduce multipath paging of a cellular phone using a code division multiple access (CDMA) method. In some cases, an instruction regarding the radiation intensity of a signal from a cellular phone is transmitted. Also, it was found that location information can be obtained using information on a base station constituting a CDMA mobile phone network such as rough location information can be obtained based on an indication of radiation intensity at each base station. Although the accuracy is generally lower than that of GPS in acquiring position information using the CDMA mobile telephone network, there is an advantage that the position information can be acquired indoors.

 Accordingly, in the present invention, at least one of the target terminal and the command terminal is a means for receiving a GPS signal from a GPS satellite to detect its current position and a plurality of base stations on its side among the base stations constituting the cellular network. Means for acquiring relevant information and means for transmitting the GPS signal and information about the base station to the location calculation center apparatus, wherein the location information of the terminal is calculated based on at least one of the received GPS signal and information about the base station. It is. In this way, the signal from the GPS satellite and the information of the mobile phone network are properly synthesized, or the location information obtained by the GPS signal is supplemented with the location information obtained by using the mobile phone network to improve the position detection accuracy of the searched mobile object and enable more accurate location detection. To help search orders.

 In addition, in the aspect of synthesis, at least one of the target terminal and the command terminal receives all of the GPS signals that can be received from the GPS satellites orbiting the satellite orbit, and the number of the GPS signals that can be received is equal to or greater than a predetermined number. In this case, it is preferable to have a means for controlling not to acquire information related to the base station so that the position information of the terminal is calculated based only on the GPS signals.

 In still another embodiment, at least one of the target terminal and the command terminal receives all of the GPS signals that can be received from the GPS satellites orbiting the satellite orbit, and the number of the GPS signals that can be received is 1. When the number is less than the predetermined number, it is preferable to include a means for controlling to acquire information related to the number of base stations according to the number, and the location information of the terminal may be calculated based on the received GPS signal and the information on the base station.

 Furthermore, as another synthesis aspect, at least one of the target terminal and the command terminal receives all of the GPS signals that can be received from the GPS satellites orbiting the satellite orbit and has no corresponding GPS signals. In this case, it is also preferable to provide a means for controlling to acquire information relating to a plurality of base stations that can be acquired, and the position information of the terminal is calculated based on the information about the base station.

 In addition, in the present invention, when the device in the center receives the location information from at least one terminal of the target terminal and the command terminal generates the information about the GPS satellites that transmit the GPS signal that can be received at the location and generated The information is transmitted to the terminal. This makes it easy to capture the GPS satellites of the terminal.

 In addition, in the aspect of the present invention, at least one of the target terminal and the command terminal receives all the GPS signals that can be received from the GPS signals coming from several satellites orbiting the satellite orbit, and the device at the center receives the terminal. The number information of a GPS signal is acquired, and error information is generated based on the number information, and the error information is provided for providing position information or processing for searching.

 In addition, in the actual field of search protection, when moving in a direction where it is not known where the vehicle is moving at high speed, it is impossible to specify exactly where to move the worker, and the command from each measuring point is already the subject of the search. Confusion and disturbances arise in the work of the person in charge of work, such as after the moving object is moved to another place. Therefore, in the aspect of the present invention, the device in the center detects a time change of the current position information of the target terminal and calculates the moving distance of the search target, and the search target moves over a predetermined distance within a predetermined time. And means for controlling to suspend transmission of the search command.

 However, in some cases, even though it is actually moving at high speed, it may seem as if it is moving at high speed pseudoly due to an error in position measurement. Accordingly, in another aspect of the present invention, the target terminal receives all GPS signals that can be received from GPS signals coming from multiple GPS satellites orbiting the satellite orbit, and the device at the center receives information on the number of GPS signals received by the terminal. Means for generating error information based on the information of the number, means for detecting a time change in the current position information of the target terminal to calculate a moving distance of the search target, and a current position of the target terminal. Means for determining whether a change in the range is within the range indicated in the generated error information, and to suspend transmission of the search command when the search object moves more than a predetermined distance within a predetermined time and the moving distance exceeds the range indicated in the error information. And means for controlling.

(1) composition

 An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the command support system according to the present embodiment includes a location information processing apparatus 1 and a command apparatus 2 connected to each other via a network, several office terminals 3, a mobile phone base station 4, The basic configuration is made up of four command terminals (5). In the following description, the instruction when searching for a search target by a security company will be described as an example. This embodiment also includes the calling terminal 6 owned by the search subject.

 As shown in FIG. 2, the position information processing apparatus 1 includes a communication unit 11, a map server 12, an operation server 13, a position monitoring server 14, and a position calculation center 15. As shown in FIG. 3, the command apparatus 2 includes a communication unit 21, a control console 22, a position monitoring console 23, a loss management server 24, and a management server 25. These position information processing apparatuses 1 and the command apparatus 2 correspond to the center apparatus of the present invention. The position calculation center 15 may be provided independently of the position information processing apparatus 1 on the network.

 As shown in FIG. 4, the office terminal 3 is composed of an interface unit 31, a control unit 32, an operation unit 33, a display unit 34, and a storage unit 35. As shown in Fig. 5, the command terminal 5 includes a radio unit 51, an interface unit 52, an operation unit 53, and a geomagnetic unit, which have a function of receiving position information from a GPS satellite and a communication function of a mobile phone. The sensor 54, the memory | storage part 55, the notification part 56, the display part 57, the control part 58, and the power supply part 59 are comprised. In addition, as shown in Fig. 6, the calling terminal 6 includes a radio receiver 61 and an emergency button E having a GPS receiving function for receiving position information from the GPS satellite 7 and a communication function of a mobile phone. The operation unit 62, the notification unit 63, and the control unit 64. In the command terminal 5, a terminal identifier for identifying each terminal is set. Further, in the calling terminal 6, a contract identifier of a search target having a terminal is set.

 The cell phone base stations 4 are scattered in various places and connected by a wired network. The cellular phone base station 4 is described here as, for example, a base station of a CDMA cellular phone network, but may be a cellular cellular phone network (PHS or PDC).

 The command support system of this embodiment has the above configuration. The following describes the operation of each part.

(2) location information processing device

The communication unit 11 of the position information processing apparatus 1 is connected to a network and receives the current position and information of the time at which the position is measured from each command terminal 5 via the mobile phone base station 4 to monitor the position. Output to server 14. The communication unit 11 also receives the current location information from the calling terminal 6 and outputs it to the location monitoring server 14. The communication unit 11 outputs the instruction received from the command apparatus 1 to the operation server 13 and transmits the information provided from the operation server 13 to the command apparatus 2.

The map server 12 manages map data of each region and transmits this map data as required. This map server 12 has in particular various scale map data and transmits the required scale map data. Here, the map data may be image data or may be data representing a road or railroad network as vector information. As such map data, for example, map data used in a navigation system can be used.

The operation server 13 receives the current position information of the contractor managed by the position monitoring server 14 in response to the request of the current position information of the contractor accompanied by the contractor identifier in the instruction apparatus 2, and the instruction apparatus 2 To send). In addition, the operation server 13 receives the current position information of the command terminal 5 identified by the terminal identifier together with the terminal identifier from the command apparatus 2 and receives the current position information of the command terminal 5 from the position monitoring server. Obtained at (14), and sent to command apparatus (2). The operation server 13 receives and manages the command identifier and command contents, the terminal identifier of the command terminal 5 which is the sender of the command contents, and the contractor identifier of the contractor involved in the command and associates them with the command apparatus 2. do. The command terminal 5 receives the request for the command content together with the command identifier, acquires the terminal identifier of the command terminal 5, examines whether or not the terminal identifier is managed in association with the command identifier, and is managed. The instruction content is sent to the instruction terminal 5. In this way, when the request terminal 5 receives a request for the current position of the originating terminal 6 related to this instruction, the origination associated with this instruction is only associated with the terminal identifier of the instruction terminal 5 and the identifier of the instruction. The current position of the terminal 6 is provided to the command terminal 5.

The position monitoring server (position measurement server) 14 manages the current position of each command terminal 5 and originating terminal 6. Specifically, the position monitoring server 14 receives information input of the terminal identifier and its current position information and the time at which the current position is measured through the communication unit 11, and accumulates these information in association with the terminal identifier. In addition, the position monitoring server 14 receives an input of the contractor identifier of the calling terminal 6 and its current position information through the communication unit 11 and records the current position information in association with the contractor identifier. In this case, the location monitoring server 14 preferably adds the information on the current location of the calling terminal 6 to the information already recorded corresponding to the contractor identifier and manages the history information of the current location. In addition, the position monitoring server 14 may not be one, and several position monitoring servers 14 may be provided. In this case, a well-known information sharing technology is used so that the location information provided by each location monitoring server 14 is the same.

The position calculation center 15 acquires a GPS signal transmitted from the originating terminal 6, a signal from a cellular phone network, or the like, calculates the position information by synthesizing and using these signals, and monitors the position monitoring server 14. To send). The specific processing of the position calculating center 15 will be described later when describing the position information calculation on the terminal side.

(3) Command device

 The communication unit 21 of the command apparatus 2 is connected to a network and is presently managed by the command terminal 5 and managed by the position information processing apparatus 1, and the current position information of the originating terminal 6 (and Information of the history) is sent, and the information is received and output to the management server 25. The communication unit 21 also transmits the information and instructions input from the management server 25 to the command terminal 5.

 The control console 22 and the position monitoring console 23 are provided for each command officer so that the command officer can operate each. The control console 22 outputs to the management server 25 an instruction relating to the command identifier according to the search command and the terminal identifier of the command terminal 5 to inform the command by the command manager's operation to the management server 25 and from the management server 25. The search command is signaled to the command terminal (5). The control console 22 transmits to the position information processing apparatus 1 an instruction relating the command identifier of the command to the terminal identifier of the command terminal 5, which is the destination of the command, and the contractor identifier related to the command. In addition, the control console 22 outputs an instruction for disassociating the command identifier and the terminal identifier to the management server 25 when receiving the report of the completion of the search.

 The position monitoring console 23 displays on the map acquired from the map server 12 information on the current position of each command terminal 5 and the current work status of the person in charge of carrying the work. The position monitoring console 23 also displays on this map the current position of the calling terminal 6 carried by the contractor who is the target of the search instruction.

Specifically, as shown in Fig. 7, the present position of the calling terminal 6 to be searched, the time at which the current position information is received, and the contractor identifier thereof are displayed (X), and the main controller command terminal is displayed. The present position of (5), the time when the present position was measured, and the work status of the person in charge of the work person having the terminal identifier and the command terminal 5 are displayed (Y). They can be distinguished from each other by shapes and colors such as circles for search subjects and triangles for working people. In addition, the working status of the person in charge is represented by a symbol such as 'P' or 'T'. This may be the case when an employee of the security company, who is in charge of the work, is in the process of traveling, receiving instructions and processing, waiting, or waiting. Furthermore, in the case of coping and waiting, there is a case where we are heading to the site to cope with or waiting for, or when we arrive at the site to cope with or wait. Doing. Specifically, the situation of the person in charge who is going to the site to cope with the work is indicated as 'T>'. In addition, in FIG. 7, a triangle indicating the command terminal 5 to which the search instruction is associated and a circle which is the current position of the search target related to the search instruction are connected by a line so that the object relation is visually specified.

 Moreover, the characteristic thing in this embodiment is that the terminal identifiers of the command terminal 5 which can transmit a command for every command officer are allocated so that it may not overlap. That is, the command person (A) is assigned terminal identifiers (a, b), and the command person (B) is assigned terminal identifiers (c, d), so the command person (A) is the command terminal of the terminal identifier (c). The command cannot be sent to (5). This ensures that no competing orders are passed to each worker. At least one terminal identifier is set in the control console 22 and the position monitoring console 23, and only information related to the command terminal 5 identified by the set terminal identifier is displayed and the instruction for the command terminal 5 is displayed. Transmission is possible.

 The loss management server 24 accumulates the terminal identifier of the lost command terminal 5 when it is reported that the command terminal 5 is lost due to theft or the like.

 The management server 25 manages the current location of the originating terminal 6 of the contractor with the investigation command, the current position and the measurement time of the terminal identifier of each command terminal 5, and the command terminal 5 in question. It has a database that keeps track of the work status of the person in charge. In addition, the management server 25 receives a command input relating to the command identifier and the terminal identifier of the command terminal 5 to inform the command from the control console 22, the command identifier identifies the command contents and the contractor involved in the command. It acquires the contractor identifier of the calling terminal 6 and controls the signal that the identifier of the investigation command and the instruction contents, the contractor identifier and the terminal identifier of the command terminal 5 of the person in charge of the work in charge of the operation are accumulated and associated. Output to console 22.

 The management server 25 may determine whether or not it is possible to receive the search command and output a signal that associates the identifier of the search command with the terminal identifier of the command terminal 5 whenever possible. In this case, if it cannot accept, a signal to the control console 22 is outputted. The processing of the judgment as to whether or not this investigation order can be accepted will be described later in the processing of reservations.

(4) Office Terminal

 The establishment terminal 3 is arranged for each establishment belonging to the work person. The person in charge of work first visits the establishment and borrows a command terminal (5), and initially sets it up, and goes out with the command terminal (5). At the time of termination, the command terminal 5 is set to the end and the command terminal 5 is returned.

 The interface unit 31 of the business terminal 3 is connected to the interface unit 52 of the command terminal 5 to communicate data relating to the initial setting process and the end setting process with the command terminal 5. Specifically, the interface unit 31 is a serial interface such as RS-232C and USB. The control unit 32 performs initial setting and end setting of the command terminal 5 connected through the interface unit 31 in accordance with an instruction input from the operation unit 33.

 That is, the control unit 32 checks whether the command terminal 5 is connected through the interface unit 31 when an operation of the initial setting is input from the operation unit 33, and acquires the terminal identifier from the command terminal 5 if connected. At the same time, the instruction terminal 5 outputs an instruction for starting the timer (not shown). In addition, the office terminal 3 transmits to the command apparatus 2 information for identifying the person in charge of operation and information for identifying the person in charge (a person identifier) and a terminal identifier of the command terminal 5. In addition, when the control unit 32 receives the end setting instruction input from the operation unit 33, the control unit 32 authenticates the person in charge and confirms whether or not the command terminal 5 is connected through the interface unit 31. A terminal identifier is obtained from the command terminal 5, the stored contents stored in the memory 35 are erased, a stop indication of a timer (not shown) is output, and a person in charge and a terminal identifier are assigned to the command apparatus 2. Send and release request for associating them.

 The display unit 34 performs a display for checking the operation at the initial setting or the end setting according to the display input from the control unit 32. The storage unit 35 stores a program executed by the control unit 32. This storage unit 35 also operates as a work memory of the control unit 32.

 (5) Command terminal

 The command terminal 5 is generally arranged in the establishment so that each worker in charge can perform initial setting using the establishment terminal 3 and carry it with him. The radio section 51 of the command terminal 5 transmits and receives data between the position information processing apparatus 1 and the command apparatus 2 via the mobile phone base station 4. In addition, the radio unit 51 receives a signal from a GPS (Global Positioning System) satellite 7 or the like, calculates current position information, and outputs the current position information, which is a result of the calculation, to the controller 58. This current position calculation will be described later in detail. The interface unit 52 is used for the connection with the business terminal 3 and transmits and receives data with the business terminal 3 during the initial setting or end setting processing.

 The operation unit 53 outputs the operation details of the person in charge to the control unit 58. The operation unit 53 includes a touch panel and the like overlaid on the display unit 57 in addition to the buttons on the case surface. The geomagnetic sensor 54 is a compass for detecting the direction of the command terminal 5 and digitizes the direction information and outputs it to the control unit 58. The storage unit 55 operates as a work memory of the control unit 58 and stores information acquired at the initial setting. The notification unit 56 alerts the person in charge by ringing a voice or vibrating the vibrator with the notification display input from the control unit 58. The display unit 57 is a dot-matrix liquid crystal display or the like and displays information such as a map obtained by the map server 12 based on a display input from the control unit 58.

 The control unit 58 receives the command identifier via the radio unit 51 and transmits a request for the command content to the position information processing apparatus 1 through the radio unit 51 together with the command identifier. In response to the request, the instruction contents and the current position of the originating terminal 6 related to the instruction are acquired and stored in the storage unit 55. Here, the current position of the calling terminal 6 acquires and stores, for example, the history of the current position in the past predetermined time or the history of the current position in the predetermined movement range (for example, the movement history within 10 km). Furthermore, what is characteristic of the present embodiment is that when receiving the instruction contents, the current position of the other instruction terminal 5 related to the instruction is acquired. This can improve the work efficiency when several working people jointly search for one person to be searched. In addition, the control unit 58 receives the current position information input from the radio unit 51 and transmits it to the position information processing apparatus 1 through the radio unit 51 together with the information of the time (measurement time) and the terminal identifier. .

 The control unit 58 calculates the distance based on the current position of the search target (the current position of the calling terminal 6 owned by the search target) related to the instruction content and its current position information, and the distance that is the result of the calculation. Based on this, the scale of the map to be acquired is selected and the map data of the selected scale is requested to the position information processing apparatus 1. When the scale information is received by the position information processing apparatus 1, the scale map data is displayed on the display unit 57, and at the same time, the present position of the investigation target is displayed together with the present position. And draw a straight line connecting them. This makes the relative positional relationship between the search target and the self clear on the map and improves the search efficiency. In this case, the geomagnetic sensor 54 is used to measure the direction in which the magnet is directed, and also displays the distance between the search target and the magnet. This display result is as showing in FIG. It is also appropriate to display this information together when the location information of the person in charge who searches jointly is acquired. In addition, the movement trajectory of the search target may be displayed based on the history information. This makes searching easier.

 The characteristic feature of the present embodiment is that when the control unit 58 receives an indication from the position information processing apparatus 1 or the command apparatus 2 via the wireless unit 51 to erase the stored contents of the storage unit 55, The contents stored in the storage unit 55 are erased according to the instruction. In this way, when the control unit 58 refers to the time of the timer (not shown) and elapses a predetermined time (for example, eight hours), the storage contents of the storage unit 55 are erased. In this way, even when the command terminal 5 is stolen, safety regarding the command content is maintained. When the contents of the storage unit 55 are erased, all of them may be erased or only predetermined contents may be selected and erased. The power supply unit 59 supplies power to these parts.

 (6) calling terminal

 The radio unit 61 of the calling terminal 6 calculates the position information using the information received from the GPS satellites 7 and the like and outputs it from the control unit 64. The calculation processing of the position information will be described later in detail. The controller 64 transmits the position information and the contractor identifier previously set to the position information processing apparatus 1 based on the instructions input from the controller 64.

 The radio unit 61 also communicates with the mobile phone network and communicates with the position information processing apparatus 1, the command apparatus 1, and the like on the network via the mobile phone network. Specifically, the radio unit 61 transmits a signal to the command apparatus 2 indicating that the emergency button E has been pressed based on the instruction input from the control unit 64.

 The operation unit 62 is composed of an emergency button E or various buttons and outputs these operation contents to the control unit 64. The notification unit 63 sounds a voice by a display input from the control unit 64. The control unit 64 calculates the position information based on the signal received by the radio unit 61 and the like and periodically positions the position information and the contractor identifier according to a preset period (for example, once every 5 seconds). It is transmitting to the processing apparatus 1. It is preferable that this period can be changed, for example, by the instruction received by the position information processing apparatus 1. This makes it possible for the position information processing apparatus 1 to transmit an instruction to connect the position information at shorter intervals and to transmit the current position more frequently in accordance with this instruction when a search target is made.

 (7) Calculation of location information

 Here, the operation processing of the position information of the command terminal 5 and the originating terminal 6 (hereinafter collectively referred to as 'terminal') will be described, and the operation of the position calculation center 15 will be described together.

In this embodiment, the position calculation of the terminal consists of both the GPS (Global Prositioning System) and the information related to the base station of the cellular phone network. Here, the principle of their position calculation will be explained.

 First, as shown in Fig. 9, a method using GPS includes signals from several (for example, 24) GPS satellites 7 (7-1, 7-2, ...) orbiting on a satellite orbit of a map. The position is measured using. Each GPS satellite 7 is assigned a unique number (identification number). In addition, the GPS reference receiving station 8 is arranged at the point (reference point) where this position is known correctly. This GPS reference receiving station 8 is made accessible by the location calculation center 15 via a network. In GPS-based positioning, the relationship between the signals received from each satellite is used. In the case of strict positioning, signals from four or more GPS satellites are required. Positions can be specified in meters to tens of meters. In particular, by using the signals of the GPS reference receiving station 8 together, the accuracy can be further increased (this technique is known as the differential GPS).

 In addition, there are the following methods for using signals related to cellular phone base stations.

 That is, in recent years, a cellular method of dividing the service providing area into several zones (cells) and alternately using two frequency bands for each cell has been widely used in cellular service. In the cellular scheme, a mobile phone in each cell communicates with a base station covering that cell. By designating the base station, it is possible to know the cell where the mobile phone is located, and therefore, it can be seen that there is a holder of the mobile phone in the area of the cell. However, in general, since the cell is relatively wide, it is difficult to specify the position at the precision such as GPS. However, in the PHS network, for example, since the size of the cell is about several hundred meters, the location can be determined to some extent. In addition, in the CDMA mobile telephone network, so-called RAKE reception is performed by communicating not only with the base station of the cell to which the cell belongs but also with the base station covering the adjacent cell. This is to alleviate the effects of multi-path phasing, in which the signal at the base station is divided into several paths due to reflection by buildings, etc., and the distance from each base station with reference to the strength of the signal from each base station. Can be used to compute. For example, with reference to the strength of a signal in communication with three nearby base stations, it is possible to measure the position with three precisions of about 300 meters. In addition, in the CDMA method, information on signal strength (distance related information) may be notified at each base station in order to solve a so-called perspective problem, and using this information may be based on notification from three nearby base stations. The branch surveying principle enables position surveying with a precision of about 300 meters.

 Here, the terminal side and the location calculation center 15 transmit and receive information as follows to measure the position of the terminal. First, the terminal informs the location calculation center 15 of the information identifying the base station with which it is communicating. The position calculation center 15 notifies the terminal of the identification number of the GPS satellite 7 which can be received at the current position of the terminal using the schematic position including the schematic position of the terminal in the notified information.

 The terminal side attempts to receive a signal from each GPS satellite 7 based on the notified identification number of the GPS satellite 7. It receives the signals (GPS signals) from all receivable GPS satellites and checks the number. If the number is not more than 3 (a number capable of achieving sufficient precision), the signal from the nearby CDMA base station (hereinafter simply referred to as the "CDMA signal") is examined. The signal from this CDMA base station requires signals from three base stations using three surveying principles. When the signal can be received from two GPS satellites and the accuracy required to know the position on a predetermined line is achieved. One CDMA signal is sufficient, and when a signal from one GPS satellite is received, one geographical point can be determined by using two CDMA signals. When none of the signals from the GPS satellites 7 are received, three CDMA signals are used to process the three surveys.

 That is, in the present embodiment, the terminal determines the number of CDMA signals to be used corresponding to the number of GPS signals received by the terminal, and transmits the received GPS signals and the determined number of CDMA signals to the location calculation center 15. In this case, the number of CDMA signals used by the terminal is determined, but the terminal may transmit all received GPS signals and at least three CDMA signals, and determine the number of CDMA signals used by the location calculation center 15 as determined by the terminal. good.

 The location calculation center 15 determines a point in geography by matching the received GPS signal with the CDMA signal. In addition, the location calculation center 15 receives the GPS reference receiving station 8 and a dedicated line or the Internet, acquires a signal from the GPS reference receiving station 8, and matches the GPS signals received from the terminal with higher precision. Generate information.

 The error of the position information calculated in this way is almost as shown in the following table depending on the number of GPS signals.

table

Number of GPS satellites used to calculate location Precision rank The presence of a search 3 units or more A 0 ~ 10M Search 2 units B 10-30M 2 search handling people 1 unit C 30-100M Search conduct three people 0 units D 100 ~ 300M Not searchable

The location calculation center 15 transmits the determined geographical point as the location information of the terminal to the location monitoring server 14. At this time, the position calculation center 15 transmits the number of GPS signals and the number of CDMA signals used for the calculation of the position information to the position monitoring server 14 together. The position monitoring server 14 stores the number of GPS signals and the number of CDMA signals together with the position information as error information. This error information becomes the standard of the error of the stored position information. For example, if the position information determined by three or more GPS signals (precision is 0 to 10 meters), the position information determined by two GPS signals (rank) If the accuracy is 10 ~ 30m, it is 'rank B', the position information determined by one GPS signal (precision is 30 ~ 10m), if it is 'rank C', the location information is determined using only CDMA signal without using GPS signal (precision is 100 ~ 300m), 'rank D' is used to rank the location information. These rank classifications are presented together when providing location information and are helpful for the instruction of the search command.

 Specifically, this error information is used not only for the reservation processing of the instructions described later, but also for determining, for example, how many search persons to dispatch in the instruction apparatus 2. For example, Rank B or Rank C instructs the commander to increase the search officer, and Rank D instructs the commander to withhold the search order.

 Since the rank setting and the accuracy of the error information vary depending on the calculation method of the position information, it is better to allow timely setting. For example, here, the CDMA signal is used, but when PHS is used, another error must be set, and if the position can be precisely specified in the future, the setting needs to be changed.

 (8) Processing of Order Reservations

 Here, the command reservation of the management server 25 of the command apparatus 2 will be described with reference to FIG. The management server 25 acquires the history of the contractor's positional information related to the instruction from the positional information processing apparatus 1 and counts the number of positional information included in the history with a counter (not shown) (S11). Then, it is checked whether or not a predetermined number of positional information has been acquired (S12). If not, the process returns to processing S11 to acquire a history of the positional information. In addition, if the predetermined number of positional information is acquired in the process S12, the distance that the contractor has moved within a predetermined time (e.g., once every 5 seconds, or 60 counts if the positional information is received, corresponds to 5 minutes) The speed of the movement of the pulse) (S13). The predetermined number of processing S12 is two or more, and is selected in time according to the nature of the moving object, the time interval for acquiring the position information, and the like. When acquired irregularly, the contractor's moving speed can also be checked by using information of a reception time included in the positional information. In this case, the counter is not necessary.

 Furthermore, the management server 25 acquires the information regarding the error of the positional information (S14), and determines whether or not the distance calculated by the process S13 is within the error range (S15). If it is determined that the error is in the range of error, the contractor judges that it has not moved, associates the search identifier with the terminal identifier of the command terminal 5 related to the command (S16), and outputs a signal indicating that it is associated (S17). .

 On the other hand, if it is determined in the processing S15 that it is not within the error range, the contractor judges that it is moving and outputs a signal indicating that the search should be suspended (S18) and the processing is completed.

 That is, in this case, it is determined that the search is impossible when the contractor is moving, considering that it becomes difficult to specify the place to be searched when the contractor is moving at a speed higher than the predetermined speed.

 Here, the case of determining whether to reserve a search on the basis of the error range has been described. The predetermined distance (for example, 4 km) and a predetermined time (for example, 60 counts = 5 minutes) are set in advance and the distance is calculated in the processing S13. If it is determined that the distance exceeds the predetermined predetermined distance, then a signal indicating that the search is suspended may be output.

 (9) working

Next, the operation of the command support system according to the present embodiment will be described. First, at normal times (before the search command is issued), each transmitting terminal 6 transmits its current position to the position information processing apparatus 1, and the position information processing apparatus 1 manages the history of the current position. The worker in charge carries out the initial setting of the command terminal (5) using the office terminal (4) of the office to which he belongs. The command terminal 5 then inputs information representing the working situation. The input of this work situation is, for example, 'tour' (P), 'going to a place where a response is needed (T)', 'in process (T)', 'directing to a waiting place (W>)', It consists of selecting which of the 'W' is waiting. Then, the command terminal 5 transmits the current position, the measurement time and the information of the work situation to the position information processing apparatus 1 and the command apparatus 2, and the position information processing apparatus 1 accumulates these information. .

 Each terminal 5, 6 also informs the position information processing apparatus 1 of the number of GPS signals and the CDMA signals used for the detection of the respective position information, and the position information processing apparatus 1 detects the position information. The error information is calculated and stored based on the information of the source signal.

 The command apparatus 2 receives a signal indicating that the emergency button is pressed at the calling terminal 6 or generates a command identifier by request from a person associated with the contractor and associates the contractor identifier related to the request. Then, the request of the contractor identifier and the current position of the calling terminal 6 related thereto is transmitted to the location information processing apparatus 1.

 In addition, a request is made to the location information processing apparatus 1 by requesting the terminal identifier set in the control console 22 and the position monitoring console 23 of the commanding person who makes a command and the current position of the command terminal 5 identified by the terminal identifier. Send.

 Then, the location information processing apparatus 1 responds to the request in the future through the network, the history of the current location of the calling terminal 6, the current location information of each command terminal 5, and the command terminal 5 Information about the working status of the person in charge of the job is transmitted to the command apparatus 2.

The command device 2 receives these information, specifies the command terminal 5 located near the current position of the source terminal 6 to be searched, and goes therein to the waiting (W), the traveling (P), and waiting. (W>) selectively highlights the command terminal (5) in the working state and displays it on the control console (22) as a candidate for the command station and maps the current position of the calling terminal (6) and the command terminal (5). The position monitoring console 23 is displayed in accordance with the image of. The command officer can easily determine which command terminal (5) should issue the command by looking at the highlighted command terminal (5).

 At this time, the command apparatus 2 acquires the error information (the information of the rank is appropriate) with respect to the current position information of the calling terminal 6 searched by the position information processing apparatus 1, and this error information is a predetermined rank. If abnormal (for example, in the case of rank D), the command terminal 5 displays the search command. In addition, when the error information is rank B or rank C, the number of command terminals 5 which should issue a command corresponding to each is displayed. For example, it is indicated so that a command may be issued by two command terminals 5 in rank B and two in rank C. FIG.

 If the command officer specifies at least one command terminal (5) to which the command should be issued, the reference person obtains and refers to the history of the location information of the originating terminal (6) to be searched and calculates the distance traveled by the contractor who has been searched within a predetermined time. If it is within the range shown in the error information, the terminal identifier of the specific command terminal 5 is associated with the command identifier and the command identifier is transmitted to the command terminal 5 of the terminal identifier. In this way, the contractor identifiers to be searched for the command identifiers and the terminal identifiers of the person in charge of the search work are related. The associated command identifier, contractor identifier, and terminal identifier are transmitted to the position information processing apparatus 1. Also, if the calculated distance is outside the range indicated in the error information, the search is suspended.

 On the other hand, when received with the command identifier in the command device (2) of the command terminal (5) is known to the work person having it. Then, the person in charge of the job requests the location information processing apparatus 1 with reference to the command identifier to request the current location of the calling terminal 6 to be searched and the current location of the person in charge of the job to be shared.

 The location information processing apparatus 1 receives and manages a command identifier, a contractor identifier, and a terminal identifier. When the command terminal 5 receives a request together with the command identifier and the terminal identifier, it is examined whether or not the terminal identifier of the requested command terminal 5 is related to the command identifier and only responds to the contractor identifier when it is related. It transmits the current position information of the calling terminal 6 and the current position (the current position of the co-searching person) of the command terminal 5 identified as the terminal identifier related to the command identifier to the command terminal 5 requesting it.

 The command terminal 5 accumulates these information in the storage unit 55, judges the area and scale of the map data acquired based on the relative positional relationship, and maps the map data to the location information processing apparatus 1 based on the determination. Require sending. Also in the command terminal 5, the error information of the position information of the originating terminal 6 of the contractor who has been searched for may be acquired and the degree of error may be displayed. In this case, for example, it is appropriate to depict and display a circle having the maximum error as a radius.

 Further, as shown in Fig. 11, the command terminal 5 communicates with the position information processing apparatus 1 using the PPP (Point to Point Protocol) and uses the TCP / IO protocol to acquire the position information. Acquire an IP address of the operation server 13 of the processing device 1 (in FIG. 11, the position measurement server in charge of IP = aaa), instruct the operation server 13 to acquire the position information (position measurement sequence), and monitor the position. It is also possible to acquire the IP address of the server 14 (the position measuring server of IP = bbb in FIG. 11) and to acquire the position information from the position monitoring server 14.

The location information processing apparatus 1 receives the request of the map data, takes the map data from the map server 12, and transmits the map data to the command terminal 5 that requested it. The command terminal 5 then displays this map data and displays the current position or the current position of the person to be searched accordingly. This clarifies the relative relationship between the search subject and his current position. Then, the person in charge of the operation starts the search operation and operates the command terminal 5 to change the work status to 'go to processing (T>)'. This change is transmitted to the positional information processing apparatus 1 and the command apparatus 2 via the cellular phone base station 4.

Then, the person in charge of the task finds the contractor who is the subject of the search, and when the search is completed, the person in charge of the task sets 'Turning (T)' to set. This setting is also transmitted to the position information processing apparatus 1 and the command apparatus 2 via the cellular phone base station 4. Then, take the search object to the client or accompany it to the appropriate place and report the contents when the processing is completed, and work status such as' Go to wait (W) 'or' Pending '(P)' for the command terminal (5). Enter.

 By the way, when the command terminal 5 is stolen, the worker in charge contacts the command terminal of the command apparatus 2 that the command terminal 5 is lost. The command terminal then registers the terminal identifier of the command terminal 5 in the loss management server 24 and sets the loss. Then, the command apparatus 2 transmits an instruction to delete the contents stored in the storage unit 55 to the command terminal 5 having the terminal identifier at predetermined intervals. When the terminal identifier is associated with any one of the command identifiers, the command apparatus 2 releases it and notifies the position information processing apparatus 1 of the released contents.

 In this case, whenever the position information processing apparatus 1 sends a request from the command terminal 5, it checks whether or not the terminal identifier of the command terminal 5 related to this request is registered in the loss management server 24 and registers it. If so, it is preferable to transmit an instruction to delete the contents stored in the storage unit 55 without complying with the request.

 Here, if the person who intoxicated or acquired the command terminal 5 requests the current position of the calling terminal 6 associated with this command identifier according to the contents stored in the storage unit 55, the position information processing apparatus 1 ) Is no longer supplied to the command identifier because the terminal identifier of the lost command terminal 5 is no longer relevant. Also, at this point in time, when the position information processing apparatus 1 transmits an instruction for erasing the storage unit 55, the contents of the storage unit 55 of the command terminal 5 can be erased here, thereby maintaining safety. have.

 Furthermore, a person who has intentionally invaded the command terminal 5 turns off the power supply of the command terminal 5 to the place from the radio wave reaching area of the mobile phone base station 4 and does not reach the radio wave of the mobile phone base station 4. In some cases, the power of the command terminal 5 may be turned on and the contents thereof may be stolen. In this case, the contents of the storage unit 55 may be erased when a predetermined time has elapsed by the internal processing of the command terminal 5. Therefore, the fall of safety by theft is prevented.

 In the above description, the mobile chain contractor has been described in the case of searching using the calling terminal 6, but the same can be handled even when issuing a response to a fixed place such as a house.

 (11) Provision of Information

 When provided for the use of the search in this manner, the location information processing apparatus 1 is also preferably configured to receive access from the person having a predetermined relationship with the contractor via the network and provide the location information of the contractor of the person.

 In this case, the person is authenticated with information such as a preset password and the location information of the contractor is provided after authentication.

As described above, the command support system of the present invention is useful when giving instructions in consideration of the situation of each person in charge such as a command in the search service.

Claims (14)

A search target side terminal carried by the search target to transmit its current position to the command center apparatus, wherein the command center apparatus is disposed at the center side to provide a command to the person in search of the search target; In the search support system comprising a command terminal each possessed, The command terminal, A positioning unit for acquiring information of the current position of the command terminal; A management unit which receives, by the person in charge, information on the current work state of the person in charge selected from the plurality of work states, including a coping state and a waiting state in response to the instruction; A transmitter for transmitting the current position and the current work status information to the command center device; It is configured to include, The command center apparatus, A receiver for receiving a current position of the search target terminal and receiving information of the current position and the current work state from each of the command terminals; A memory for storing a current position received from the search target terminal and storing information of the current position and the current work state received from each command terminal; Preliminary selecting means for selecting a command terminal located within a preset area from a current position of the search target terminal based on the current position of the search target terminal and the current position of the command terminal stored in the memory; Main selection means for selecting, as a command terminal to which the command is to be sent, a command terminal having a current work state other than the coping state in response to the command among the command terminals preliminarily selected by the preliminary selection means based on the stored current job state information ; A transmitter for transmitting a command for searching for the search target to the selected command terminal; Means for detecting a time change of a current position of a search target terminal stored in the memory, and calculating a movement distance within a predetermined time of the search target; Means for performing control to suspend transmission of a command for searching for the search target when the search target has moved a distance greater than a predetermined moving distance within a predetermined time; Search support system comprising a. The method of claim 1, The search target terminal receives all of the GPS signals that can be received among the GPS signals coming from various GPS satellites orbiting the satellite orbit, and transmits the received GPS signals to the command center device. The command center apparatus, Means for obtaining information on the number of GPS signals received by the search target terminal, and generating error information having a larger value as the information on the number is smaller; And Means for determining whether a movement distance within a predetermined time of a search object is within a range indicated by the generated error information; Means for controlling to suspend transmission of a command for searching for the search target when the search target moves within a predetermined time or more, and the movement distance exceeds the range indicated in the error information; Search support system, characterized in that further comprises a. delete delete delete delete delete delete delete delete delete delete delete delete