JP4831414B2 - In-vehicle search system - Google Patents

Description

  The present invention relates to an in-vehicle search system using a vehicle.

Japanese Patent Laid-Open No. 05-205174

  In recent years, the number of missing persons due to kidnapping cases has increased, and there is a desire to prevent this. For this reason, for example, as disclosed in Patent Document 1, there is disclosed a technique for specifying a position to be searched by a radio wave signal from a GPS satellite and performing a follow-up survey.

  However, this technique has a problem that the current position of the search target cannot be specified unless the search target has a GPS receiver.

  The present invention is directed to an in-vehicle search in which a missing object due to a crime such as kidnapping or theft is a search object, and even when the search object does not have a GPS receiver, its location can be specified and its movement trajectory can be grasped To provide a system.

Means for Solving the Problems and Effects of the Invention

In order to achieve the above object, an in-vehicle search system according to the present invention includes:
An identification information for uniquely identifying the portable communication device from the portable communication device is configured to be mounted on the vehicle and directly wirelessly communicated with the portable communication device outside the vehicle. Vehicle-side identification information wireless acquisition means for acquiring by direct wireless communication with the aircraft,
Vehicle current position detecting means mounted on the vehicle and detecting a current position of the vehicle;
Command receiving means for wirelessly receiving an acquisition request for an identification signal of the portable communication device to be searched from the outside of the vehicle;
When the command receiving means does not receive the acquisition request, the vehicle-side identification information wireless acquisition means receives the vehicle-specific identification information transmitted from the portable communication device, and the identification information and itself Smart key means for collating the stored master code and allowing a predetermined vehicle operation based on the collation result;
When the instruction receiving unit receives the acquisition request, and acquires the state of the identification information of the search target mobile communication device by the vehicle-side identification information wirelessly acquiring unit, detected by said current vehicle position detecting means based on the current position information before SL wheel cars, the estimated position information generating means for generating estimated position information of the search target mobile communication device,
It is characterized by providing.

  According to the above configuration of the present invention, if the portable communication device is attached to a person who is a search target (for example, a missing person) or an object (for example, a lost or forgotten object), a search is performed. When the object is searched for, the vehicle can obtain the identification information of the portable communication device and the position information of the portable communication device, thereby grasping where the portable communication device having which identification information exists. As a result, if the acquired identification information is that of the portable communication device to be searched, the presence estimated position can be estimated, and therefore the search target exists in the vicinity of the existence estimated position of the portable communication device. It can also be estimated that the possibility is high.

  The vehicle-side identification information wireless acquisition means in the above configuration can start acquisition of identification information by wirelessly receiving an identification information acquisition request from the outside. As a result, the vehicle automatically starts the search process based on a request by wireless communication from the outside.

  The estimated position information creation means in the above configuration is such that the vehicle-side identification information wireless acquisition means is centered on the current position of the vehicle when the vehicle-side identification information wireless acquisition means succeeds in acquiring the identification information of the portable communication device. The estimated position of the portable communication device can be specified within a wireless coverage area having a predetermined radius. According to this configuration, when the identification information of the portable communication device to be searched is acquired, the location of the portable communication device is determined based on the direct wireless communication range of the vehicle that acquired the identification information (wireless arrival). (Area).

  The estimated position information creating means in the above configuration is provided outside the vehicle, wirelessly receives the current position of the vehicle and the acquisition information of the identification information of the portable communication device from the vehicle, and based on the wirelessly received information Estimated position information can be created. According to this configuration, since the creation of the estimated position information is executed outside the vehicle, the processing load on the vehicle can be reduced.

  In this case, the current position of the vehicle and the acquisition information of the identification information of the portable communication device can be received from a plurality of vehicles, and the estimated position information can be created based on the received information by the plurality of vehicles. According to this configuration, since the identification information of each portable communication device acquired from a plurality of vehicles can be collected, the identification information of the portable communication device to be searched is extracted from among the identification information. By specifying the current position information of the destination vehicle that has been sent, it is possible to obtain the estimated position information of the portable communication device to be searched. Thereby, a wide range search becomes possible. In addition, when a request for obtaining identification information is made at predetermined time intervals and the estimated position information is obtained each time, the vehicle moves during that time, so that the portable communication device to be searched moves. The route can also be revealed.

  Further, when searching with a plurality of vehicles and succeeding in obtaining the identification information of the portable communication device, the estimated position of the portable communication device is identified in the wireless coverage area of the vehicle. The information creating means can specify the estimated position of the portable communication device in the overlapping area of the wireless coverage areas having a predetermined radius centered on the respective current positions of the plurality of vehicles. Thereby, the area where a portable communication apparatus exists can be narrowed down further.

  The vehicle-side identification information wireless acquisition means includes a polling signal output means for wirelessly outputting a polling signal for polling the portable communication device, and the portable communication device that the portable communication device transmits based on reception of the polling signal. A polling response signal receiving means for receiving a polling response signal reflecting the identification information of the machine. According to this configuration, the vehicle can easily acquire the identification information from the surrounding portable communication device by transmitting the polling signal and receiving the response signal.

  In the present invention, the vehicle receives the ID code unique to the vehicle transmitted from the portable communication device as identification information, collates the ID code with the master code stored in itself, A smart key system that permits predetermined vehicle operation based on the vehicle can be provided. As a result, the polling signal output means and polling response signal reception means used by the smart key system can be used as they are, so that the search process can be easily realized simply by incorporating new software.

  Further, the vehicle current position detection means can detect the current position based on reception information of a GPS receiver incorporated in a car navigation device mounted on the vehicle. Since the GPS function of the car navigation device mounted on the vehicle can be used as it is, the addition of a new function can be omitted.

  Hereinafter, an in-vehicle search system of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram schematically showing an in-vehicle search system 100. In the in-vehicle search system 100, an in-vehicle navigation device (hereinafter referred to as a navigation device) 800 and an ECU 200 that controls a known smart key system are connected via an in-vehicle LAN 27. The communication device 290 is configured to be capable of direct wireless communication, and the navigation device 100 and the security center (external device) are configured to be capable of wireless communication.

  The navigation device 800 includes a position detector 1, a map data input device 6, an operation switch group 7, a remote control (hereinafter referred to as remote control) sensor 11, a voice synthesis circuit 24 for voice guidance, a speaker 15, a memory 9, and a display. 10, a transceiver 13, a hard disk device (HDD) 21, a LAN (Local Area Network) I / F (interface) 26, a control circuit 8 connected thereto, a remote control terminal 12, and the like. The vehicle means a vehicle equipped with the navigation device 800).

  The position detector 1 is a well-known geomagnetic sensor 2, a gyroscope 3 that detects the rotational angular velocity of the vehicle, a distance sensor 4 that detects the travel distance of the vehicle, and a GPS receiver that detects the position of the vehicle based on radio waves from a satellite. Machine 5 is provided. Since these sensors 2, 3, 4, and 5 have errors of different properties, they are configured to be used while being complemented by a plurality of sensors. Depending on the accuracy, some of the above-described sensors may be used, and further, a steering rotation sensor or a wheel sensor of each rolling wheel, such as a vehicle speed sensor 23, may be used. The position detector 1 corresponds to the vehicle current position detecting means of the present invention.

  As the operation switch group 7, for example, a touch panel 22 integrated with the display device 10 or a mechanical switch is used. The touch panel 22 is pressed when an electric circuit is wired in the X-axis direction and the Y-axis direction through a gap called a spacer on a glass substrate and a transparent film on the screen of the display 10, and the user touches the film. Since the voltage value changes due to short-circuiting of a part of the wiring, a so-called resistance film method for detecting this as a two-dimensional coordinate value (X, Y) is widely used. In addition, a known so-called capacitance method may be used. In addition to the mechanical switch, a pointing device such as a mouse or a cursor may be used. Moreover, you may arrange | position the mechanical switch of the operation switch group 7 in the escutcheon which covers the indicator 10 and its periphery and becomes a design frame.

  It is also possible to input various instructions using the microphone 31 and the voice recognition unit 30. In this method, a voice signal input from the microphone 31 is processed by a voice recognition technique such as a well-known hidden Markov model in the voice recognition unit 30, and converted into an operation command corresponding to the result. Various instructions can be input through the operation switch group 7, the remote control terminal 12, the touch panel 22, and the microphone 31.

  The control circuit 8 is configured as a normal computer, and includes a well-known CPU 81, ROM 82, RAM 83, input / output circuit I / O 84, A / D conversion unit 86, drawing unit 87, clock IC 88, and their configurations. A bus line 85 to be connected is provided. The CPU 81 controls the navigation program 21p and data stored in the HDD 21. The CPU 81 controls the reading / writing of data to / from the HDD 21. In addition, a program for performing a minimum necessary operation as the navigation device 800 may be stored in the ROM 82 in a case where the data read / write control from the CPU 81 to the HDD 21 becomes impossible.

  The A / D conversion unit 86 includes a known A / D (analog / digital) conversion circuit, and converts analog data input from the position detector 1 or the like to the control circuit 8 into digital data that can be calculated by the CPU 81, for example. Is.

  The drawing unit 87 generates display screen data to be displayed on the display unit 10 from map data 21m (described later) stored in the HDD 21 or the like, display data, and display color data.

  The clock IC 88 is also called a real-time clock IC, and sends or sets clock / calendar data in response to a request from the CPU 81. The CPU 81 acquires date / time information from the clock IC 88. Further, date and time information included in the GPS signal received by the GPS receiver 5 may be used. The date information may be generated based on a real-time counter included in the CPU 81. The acquired date / time information is used, for example, for travel history management.

  In addition to the navigation program 21p, the HDD 21 stores so-called map matching data for improving the accuracy of position detection, and map data 21m, which is a map database including road data representing road connections. The map data 21m stores predetermined map image information for display and road network information including link information and node information. The link information is predetermined section information constituting each road, and includes position coordinates, distance, required time, road width, number of lanes, speed limit, and the like. The node information is information that defines an intersection (branch road) and the like, and includes position coordinates, the number of right / left turn lanes, a connection destination road link, and the like. In addition, data indicating whether or not traffic is permitted is set in the link connection information.

  Further, the HDD 21 can store auxiliary information for route guidance, entertainment information, and other data that can be written by the user, and is stored as user data 21u. Data and various information necessary for the operation of the navigation device 800 are also stored as the database 21d.

  The navigation program 21p, map data 21m, user data 21u, and database 21d can be added / updated from the storage medium 20 via the map data input device 6. The storage medium 20 is generally a CD-ROM or DVD based on the amount of data, but may be another medium such as a memory card. Moreover, you may use the structure which downloads data via an external network. this

  The memory 9 is constituted by a rewritable device such as an EEPROM (Electrically Erasable & Programmable Read Only Memory) or a flash memory, and information and data necessary for the operation of the navigation device 800 are stored therein. It is remembered. The memory 9 holds the stored contents even when the navigation device 800 is turned off. Further, information and data necessary for the operation of the navigation device 800 may be stored in the HDD 21 instead of the memory 9. Further, information and data necessary for the operation of the navigation device 800 may be stored separately in the memory 9 and the HDD 21.

  The display 10 includes a known color liquid crystal display, and includes a dot matrix LCD (Liquid Crystal Display) and a driver circuit (not shown) for performing LCD display control. The driver circuit uses, for example, an active matrix driving method in which a transistor is attached to each pixel so that the target pixel can be reliably turned on and off, and a display command sent from the control circuit 8 (drawing unit 87) and Display is performed based on the display screen data. Further, an organic EL (Electro Luminescence) display or a plasma display may be used as the display 10. In addition, the indicator 10 is attached so that a driver | operator can visually recognize near the center panel of a vehicle.

  The speaker 15 is connected to a well-known voice synthesis circuit 24, and the digital voice data stored in the memory 9 or the HDD 21 in accordance with a command from the navigation program 21p is converted into analog voice by the voice synthesis circuit 24 and sent out. Note that speech synthesis methods include a recording / editing method in which speech waveforms are stored as they are or after being encoded and connected as necessary, and a text synthesis method in which corresponding speech is synthesized from character input information.

  The LAN I / F 26 is an interface circuit for exchanging data with other in-vehicle devices and sensors via the in-vehicle LAN 27. Further, data may be taken from the vehicle speed sensor 23 or connected to the ETC on-vehicle device 17 via the LAN I / F 26.

  The transmitter / receiver 13 is connected to a road traffic from a VICS (Vehicle Information and Communication System) center 14 by an optical beacon or a radio beacon output from a transmitter (not shown) provided along the road, for example. It is a device for receiving information or receiving FM multiplex broadcasting. Moreover, it is good also as a structure which can be connected to external networks, such as the internet, using the transmitter / receiver 13. FIG. Further, by communicating with the ETC on-vehicle device 17, the charge information received by the ETC on-vehicle device 17 from the roadside device (not shown) can be taken into the navigation device 800. The ETC on-vehicle device 17 may be connected to an external network and communicate with the VICS center 14 or the like. Furthermore, the transceiver 13 in the present embodiment is configured to be capable of wireless communication with a security center 500 outside the vehicle, which will be described later.

  With this configuration, the navigation device 800 allows the user to operate the operation switch group 7, the touch panel 22, the remote control terminal 12, or the voice from the microphone 31 when the navigation program 21 p is activated by the CPU 81 of the control circuit 8. When a route guidance process for displaying a destination route on the display 10 is selected from a menu (not shown) displayed on the display 10 by input, the following process is performed.

  That is, first, the user searches for a destination. The destination search method includes, for example, a method of specifying an arbitrary point on the map, a method of searching from the area where the destination is located, a method of searching from the telephone number of the destination, and a name of the destination from the Japanese syllabary table There is a method of searching by inputting the number of characters, or a method of searching from what is stored in the memory 9 as a facility frequently used by the user. The destination setting means functions by executing the navigation program 21p.

  When the destination is set, the current position of the vehicle is obtained by the position detector 1, and a process for obtaining an optimum guide route to the destination from the current position is performed. As a method for automatically setting an optimum guide route, a method such as the Dijkstra method is known. When the optimum guide route is set, the guide screen display program 212p is executed, and a road map based on the map data 21m is displayed on the display device 10, and the guide route is displayed on the road map in an overlapping manner. Then, route guidance is given to the user. The route guidance is also performed by voice through the speaker 15. Further, the display device 10 and the speaker 15 can also notify a message according to the guidance during operation or the operation state.

  In addition, the transceiver 13 of the navigation device 800 in the present embodiment is configured to be able to wirelessly communicate with the security center 500 outside the vehicle. As shown in FIG. 3, the security center (external device: estimated position information creating means) 500 generates a lost item, a missing person, etc. (FIG. 3 (1)). If there is a search request, the search reception unit (center reception) 501 receives the search request ((2) in FIG. 3). When the search reception unit 501 receives a search request, the identification information (ID code) of the portable communication device 290 that the search target A will have is obtained with permission from the client side, and the reception is completed. Thereafter, the identification information is registered in the database 510 in association with the search request information such as the requester, the request date, the search object, the search area, and the search conditions ((3) in FIG. 3). The search execution unit (center search) 502 reads the identification information from the search request contents registered in the database 510 at a predetermined time interval ((4) in FIG. 3), and is specified by the search request condition. The search request signal (identification information acquisition request) is wirelessly output toward the area ((5) and FIG. 4 in FIG. 3).

  The plurality of vehicles 110 (110A, 110B,...) That have received the search request signal are transmitted from the mounted navigation device 800 to the ECU 200 to execute a search process to be described later for searching for the portable communication device 290. The ECU 200 executes the search process. The search processing result is transmitted to the navigation device 800, and the search processing result is transmitted from the transceiver 13 to the security center 500. The security center 500 specifies the presence area of the portable communication device 290 associated with the search target A based on the search processing result transmitted from each vehicle existing in the search area.

  Next, ECU 200 receives the vehicle-specific ID code transmitted from portable communication device 290 as identification information, collates the ID code with the master code stored in itself, and based on the collation result This is an electronic control device that executes a system that permits predetermined vehicle operation, a so-called smart key system.

  In the ECU 200, a CPU 201, a RAM 202, a ROM (for example, EEPROM) 203 that is a nonvolatile memory, and an input / output unit (I / O in the figure) 205 are connected by a bus 204. Connected to the input / output unit 205 is an antenna control unit (polling signal output means, polling response signal receiving means, vehicle-side identification information wireless acquisition means) 280 for controlling radio wave output and radio wave reception from the antenna 281. Note that two types of antennas 281 are provided for vehicle exterior and vehicle interior.

  The ROM 203 also includes a smart program 203a that executes a well-known smart entry function, a search program 203b that executes search processing for a search object, and identification information (ID code) transmitted from the corresponding portable communication device 290. Is stored as master identification information (master ID) 203c.

  When the smart program 203a is executed by the CPU 201, first, the antenna control unit 280 determines in advance a polling signal for polling the portable communication device 290 of the present embodiment that forms a wireless key of the vehicle via the antenna 281. It outputs wirelessly at a specified cycle. When the portable communication device 290 wirelessly receives a polling signal from the antenna 281, the portable communication device 290 is configured to wirelessly transmit a polling response signal reflecting the identification information (ID code) to the vehicle as a response signal to the polling signal. Therefore, next, it is determined whether or not the antenna control unit 280 wirelessly receives the polling response signal from the portable communication device 290 via the antenna 281. If not received, this program ends. If received, the identification information of the polling response signal is collated with the master identification information 203c. If the verification matches, vehicle operations such as unlocking the door lock and starting the engine are permitted. Specifically, the operation permission signal for permitting these vehicle operations is transmitted to the engine ECU 300 that performs engine start control, the door lock ECU 400 that performs door lock control, and the like via the in-vehicle LAN 27. If the verification does not match, the operation permission is not given to these operations.

  In the ECU 200 in the present embodiment, the band of the transmission wave from the antenna 281 is set to the long wavelength LF band (from 50 kHz to 500 kHz). When the user is outside a predetermined communication area where wireless communication is possible, the portable communication device 200 does not respond to the search radio wave, and when the user approaches, the portable communication device 290 is located anywhere on the body. It can be said that the use of the LF band is advantageous in that the radio wave for search wraps around and can detect the radio wave even if the LF band is held.

  In addition, the polling signal can be transmitted in the wireless reachable area 111 having a predetermined radius around the vehicle antenna 281.

  Next, the search program 203b executes a search for the portable communication device 290 based on a search request from the security center 500 on the vehicle side, and wirelessly transmits the result to the security center 500. The search program 203b is executed as a search request signal from the search execution unit 502 of the security center 500, triggered by wireless reception of an identification information acquisition request.

  Specifically, as shown in the flowchart of FIG. 2, first, at S1, acquisition of identification information is started. That is, as shown in FIG. 4, in S1, the antenna control unit 280 causes a polling signal to be wirelessly output from two types of antennas 281 for vehicle exterior and vehicle interior. In S2, it is determined whether or not the antenna control unit 280 has received a polling response signal during a predetermined period after outputting the polling signal. In the case of FIG. 4, a plurality of vehicles 110 (110A to 110E) that have received search request signals from the security center 500 each output a polling signal, but those polling signals from vehicles 110A, 110B, and 110C are search targets. It reaches portable communication device 290A corresponding to body A, but does not reach vehicles 110D and 110E. In the vehicles 110D and 110E that have not received the polling signal, this program is terminated at this stage. In vehicles 110A, 110B, and 110C that have received the polling signal, the process proceeds to S3.

  In S3, the ECU 200 causes the navigation device 800 to perform position detection of the current position by the position detector 1. Then, together with the detected current position information, the identification information received as a polling response signal by the antenna control unit 280 is wirelessly transmitted from the transceiver 13 of the navigation device 800 to the search execution unit 502 of the security center 500, and this program is terminated. To do. In any situation, when transmitting the identification information, it is necessary to encrypt the transmission data.

  The search process by the search program 203b is executed in all the vehicles that have received the search request signal. The search execution unit 502 of the security center 500 wirelessly transmits the current positions of the plurality of vehicles 110 (110A to 110C) and the acquisition information of the identification information of the portable communication devices 290 acquired by the vehicles from the vehicles. Based on the information received wirelessly, the estimated position information of the portable communication device 290A to be searched is created.

  Specifically, in the case of the search program 203b described above, the search execution unit 502 of the security center 500 acquires the vehicle from all the vehicles 110 (110A to 110C) that have received the identification signal of the portable communication device 290. The search execution unit 502 collects the identification information corresponding to the search request information read from the database 510 when the search request signal is output. (Identification information of portable communication device 290A to be searched) is searched from the collected information. When the identification information to be searched is searched, the current position of the vehicle corresponding to the searched identification information is specified, and the wireless arrival area 111 (with a predetermined radius centered on the specified current position) ( 111A to 111C), the estimated position of the portable communication device 290A to be searched is specified.

  In some cases, there may be a plurality of current positions corresponding to the searched identification information. For example, as shown in FIG. 5, a plurality of vehicles 110 </ b> A, 110 </ b> B, 110 </ b> C may have received identification information of portable communication device 290 </ b> A corresponding to search object A. In this case, since the current position information of each of the vehicles 110A, 110B, and 110C is transmitted to the search execution unit 502 together with the identification information of the portable communication device 290A, each current of the plurality of vehicles 110A, 110B, and 110C is transmitted. The estimated position of the portable communication device 290A is specified in the overlapping area 111Z of the wireless arrival areas 111A, 111B, and 111C having a predetermined radius centered on the position.

  The identified estimated position of the portable communication device 290A is output so as to be visible at the security center 500. For example, estimated position data (estimated position information) is created so that an estimated position is specified on road map data stored in a predetermined storage area (road map data storage unit) of the database 510. The road map based on the road map data is displayed on the display device of the security center 500 and the estimated position based on the estimated position data is superimposed and displayed (estimated position information output means).

  In the search process, all the vehicles 110 that have received the search request signal output a polling radio wave, and all the received identification information is transmitted to the security center 500. Although the estimated position of the communication device 290A is estimated, it can be performed by another method. For example, the identification information of the portable communication device to be searched is transmitted from the security center 500 to the vehicle 110 together with the search request signal. On the vehicle side, the polling radio wave is transmitted based on the reception of the search request signal, the polling response radio wave is received, the identification information acquired from the received polling response radio wave, and the identification of the portable communication device to be searched It may be configured such that the current position is transmitted to the security center 500 only when collation with the information is performed and the collation result matches.

  In the above embodiment, the search process using the polling radio wave used by the smart key system is executed, and the portable communication device corresponds to the portable device forming the key of the smart key system. In the present invention, any configuration may be used as long as the vehicle can acquire the identification information directly from the portable communication device by wireless communication.

  For example, the output of the search signal (polling radio wave) from the vehicle side can be configured to be output from other communication means without using the communication means of the smart key system. The portable communication device may also use an infrastructure that is always carried by a general person, different from the keys of the smart key system. For example, the portable communication device can be a house key or a wristwatch. In this case as well, in the above embodiment, unique identification information is given (stored) to these, and when a search signal is received from the vehicle side, a response signal reflecting the identification information is returned. The configuration can be the same as that of the portable communication device.

  Also, when using smart key system communication means, especially when the polling radio wave output at the time of smart key system execution is set low, the polling radio wave is output at a higher output than the polling radio wave in the smart key system. Thus, the portable communication device may also be configured to output a high-power polling response radio wave that reflects the identification information with an output having the same reach as the high-power polling radio wave. . In this case, it is possible to provide both the vehicle side and the portable communication device side by providing output switching means for switching the output used when the smart key system is executed and the output used when the search is executed.

1 is a block diagram schematically showing an in-vehicle search system of the present invention. The flowchart explaining the flow of the search process which the vehicle side performs. The figure explaining the flow of search notionally. The 1st figure explaining the method of estimating the estimated position of a search object. The 2nd figure explaining the method of estimating the estimated position of search object.

Explanation of symbols

100 In-vehicle search system 200 ECU
201 CPU
202 RAM
203 ROM
280 Antenna control unit 281 Antenna (for vehicle exterior and vehicle interior)
290 Portable communication device 500 Security center 800 Navigation device 27 Car LAN
13 Transceiver 110 (110A to 110E) Vehicle 111 (111A to 111E) Radio coverage area 111Z Overlap area of radio coverage area A Search object

Claims (7)

An identification information for uniquely identifying the portable communication device from the portable communication device is configured to be mounted on the vehicle and directly wirelessly communicated with the portable communication device outside the vehicle. Vehicle-side identification information wireless acquisition means for acquiring by direct wireless communication with the aircraft,
Vehicle current position detecting means mounted on the vehicle and detecting a current position of the vehicle;
Command receiving means for wirelessly receiving an acquisition request for an identification signal of the portable communication device to be searched from the outside of the vehicle;
When the command receiving means does not receive the acquisition request, the vehicle-side identification information wireless acquisition means receives the vehicle-specific identification information transmitted from the portable communication device, and the identification information and itself Smart key means for collating the stored master code and allowing a predetermined vehicle operation based on the collation result;
When the instruction receiving unit receives the acquisition request, and acquires the state of the identification information of the search target mobile communication device by the vehicle-side identification information wirelessly acquiring unit, detected by said current vehicle position detecting means based on the current position information before SL wheel cars, the estimated position information generating means for generating estimated position information of the search target mobile communication device,
Vehicle search system comprising: a. The estimated position information generating means, when the front Symbol vehicle identification information wirelessly acquiring unit has succeeded in acquiring the identification information of the portable communication device, the radius of a predetermined centered on the current position of the vehicle vehicle location system according to claim 1 is to determine the estimated position of the mobile communication device to the wireless reach area. The estimated position information creating means is provided outside the vehicle, and wirelessly receives the current position of the vehicle and the acquisition information of the identification information of the portable communication device from the vehicle, and the wirelessly received information The in-vehicle search system according to claim 1 or 2 , wherein the estimated position information is created based on the information. The current position of the vehicle and the acquisition information of the identification information of the portable communication device are received from a plurality of vehicles, and the estimated position information is created based on information received by the plurality of vehicles. Item 4. The on-vehicle search system according to Item 3 . The estimated position information creating means is a wireless device having a predetermined radius centered on the current position of the vehicle when the vehicle-side identification information wireless acquisition means succeeds in acquiring the identification information of the portable communication device. Identify the estimated position of the portable communication device within the reach area,
The estimated position information generating means, according to claim 4 is intended to identify the estimated position of the mobile communication device to the overlapping region of the radius of the radio coverage area of a predetermined centered at each current position of the plurality of vehicles The search system for vehicles described in 1. The vehicle-side identification information wireless acquisition means is transmitted from a polling signal output means for wirelessly outputting a polling signal for polling the portable communication device, and from the portable communication device based on reception of the polling signal. The in-vehicle search system according to any one of claims 1 to 5 , further comprising polling response signal receiving means for receiving a polling response signal in which the identification information is reflected. The current vehicle position detecting means, any one of the claims 1 to 6 vehicle based on the received information of the GPS receiver built into a car navigation apparatus mounted on the and detects the current position 1 The in-vehicle search system according to item.

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