JP2006035990A - Antitheft system for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To specify a present position, even when a burglar prevents an alarm device and a reporting device from being operated and travels and moves a vehicle, in an antitheft system for the vehicle provided with an antitheft device mounted on the vehicle to prevent theft of the vehicle. <P>SOLUTION: In the antitheft device of the object vehicle, a confirmation signal is transmitted to portable terminal equipment of a possessor of the vehicle. In the terminal equipment, whether or not the confirmation signal is not received for a prescribed time or more is decided. When the decision result is YES, a search request signal is transmitted to an other vehicle. In an antitheft device of the other vehicle, whether or not an alarm request signal is received is decided. When the decision result is YES, the object vehicle is searched. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle antitheft system.

2. Description of the Related Art Conventionally, an anti-theft device that is mounted on a vehicle and prevents the theft of the vehicle is known. For example, in Patent Documents 1 and 2, when a vehicle is about to be stolen, an alarm device such as a burglar horn gives an alarm by sound or the like, and a notification device indicates that the vehicle is about to be stolen. By reporting to the owner's mobile terminal device, theft of the vehicle is prevented.
JP 2003-132441 A Japanese Patent Laid-Open No. 2003-137071

  However, in the above antitheft device, if the thief does not activate the alarm device or the notification device, it will not be possible to issue an alarm or notification to the outside. Therefore, in such a case, even if it is detected that the corner vehicle is being stolen, it is not possible to give an alarm or report to the outside, and as a result, the thief travels and moves the vehicle. And it was difficult to specify the current position. As described above, in the antitheft device, it is difficult for the thief to prevent theft of the vehicle when the thief does not actuate the alarm device or the notification device and the vehicle travels.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a thief in a vehicle antitheft system equipped with an antitheft device mounted on a vehicle and preventing theft of the vehicle. An object of the present invention is to provide a technology capable of specifying the current position even when an alarm device or a notification device is not operated and the vehicle is moved and moved.

  According to a first aspect of the present invention, there is provided alarm means for alarming the periphery of the vehicle, a theft determination means for determining whether or not the vehicle is about to be stolen, and the vehicle based on a predetermined operation. Mode setting means for setting the anti-theft mode to prevent theft and control for operating the alarm means when the anti-theft mode is set and when the vehicle is determined to be stolen by the theft determining means An antitheft system for a vehicle comprising an antitheft device comprising: means for storing vehicle information capable of specifying the vehicle; and a predetermined wireless communication with a predetermined terminal device mounted on the vehicle. First transmission means for transmitting a signal every predetermined period; interruption detection means for detecting that reception of a radio signal from the first transmission means is interrupted in the predetermined terminal device; and the interruption. Vehicle information stored in the storage means for other vehicles other than the vehicle when it is detected by the output means that reception of the radio signal from the first transmission means is stopped at the predetermined terminal device A second transmitting means for transmitting the vehicle, a search means for searching for a vehicle that is mounted on the other vehicle and that matches the vehicle information at least when the own vehicle receives the vehicle information, and the other vehicle And a reporting means for notifying a predetermined reporting destination of information on the discovery location of the vehicle when a vehicle matching the vehicle information is found by the search means of the own vehicle. It is what.

  As a result, when the interruption detecting means detects that the reception of the radio signal from the first transmitting means has been interrupted by a predetermined terminal device, the second transmitting means sends a vehicle other than the vehicle in which the reception has been interrupted. The vehicle information stored in the storage means is transmitted to the search means.When the own vehicle receives the vehicle information, the search means searches for a vehicle that matches the vehicle information at least during the running of the own vehicle. When a vehicle matching the vehicle information is found by the search means of the own vehicle, the thief is prevented from operating the vehicle alarm means and the like because the information on the discovery location of the vehicle is reported to a predetermined report destination. Even when the vehicle travels and moves, the current position can be specified.

  In a second aspect based on the first aspect, the searching means has photographing means for photographing the surroundings of the own vehicle, and was photographed by the photographing means when the own vehicle received the vehicle information. The vehicle is configured to search for a vehicle that matches the vehicle information based on the image.

  Thus, when the own vehicle receives the vehicle information, the search means searches for a vehicle that matches the vehicle information based on the image captured by the imaging means, so that the vehicle that matches the vehicle information can be searched reliably. it can.

  According to a third invention, in the first invention, when the vehicle that matches the vehicle information is found by the search means of the own vehicle, the reporting unit displays information on the discovery location of the vehicle in the predetermined reporting destination. In addition to reporting to the predetermined reporting destination, the reporting means of the surrounding vehicle does not report the information on the discovery location of the vehicle to surrounding vehicles existing around the host vehicle. When the own vehicle receives the report stop request signal, a vehicle matching the vehicle information is found by the search means of the own vehicle. In addition, the vehicle is configured not to report the vehicle location information to the predetermined report destination until a predetermined condition is satisfied.

  As a result, when the vehicle matching the vehicle information is found by the search means of the own vehicle, the notifying means notifies the predetermined report destination of the information on the discovery location of the vehicle, and A notification stop request signal is sent to a neighboring vehicle existing in the vicinity so that the reporting means of the neighboring vehicle does not report the information on the vehicle discovery location to a predetermined reporting destination. When the vehicle receives the notification stop request signal, even if a vehicle matching the vehicle information is found by the search means of the own vehicle, the information on the discovery location of the vehicle is sent to the predetermined report destination until the predetermined condition is satisfied. Therefore, it is possible to prevent a plurality of reporting means from reporting substantially the same information to the predetermined reporting destination at the same time.

  In a fourth aspect based on the first aspect, the storage means stores a parking position of the vehicle in addition to the vehicle information. An area setting means for setting a search area for searching for the vehicle based on the parking position of the vehicle, which is stored at least in the storage means when it is detected that reception of a radio signal from one transmission means is interrupted; The second transmission means is provided with respect to the other vehicle when the interruption detection means detects that reception of the radio signal from the first transmission means is interrupted in the predetermined terminal device. A search request signal for operating only the search means of the other vehicle that is included in the search area set by the area setting means is included. That it is configured in which the features.

  Thereby, the area setting means, when it is detected by the interruption detection means that reception of the radio signal from the first transmission means is interrupted in the predetermined terminal device, at least the reception stored in the storage means is interrupted. A search area for searching the vehicle is set based on the parked position of the vehicle, and the second transmission means detects that the reception of the radio signal from the first transmission means is interrupted at the predetermined terminal device by the interruption detection means. When a search request signal for operating only the search means of the other vehicle that is included in the search area set by the area setting means is transmitted to the other vehicle. It is possible to prevent searching for a vehicle in an area where it is considered unnecessary to search for a vehicle that matches the vehicle information.

  In a fifth aspect based on the first aspect, when a vehicle matching the vehicle information is found by the search means, an area for setting a search area for searching for the vehicle based on at least the location where the vehicle is found The second transmission means is a case where the interruption detecting means detects that the reception of the radio signal from the first transmission means is interrupted by the predetermined terminal device. When a vehicle that matches the vehicle information is found by the search means, the vehicle information is included in the other vehicle, and the vehicle exists within the search area set by the area setting means. The present invention is characterized in that a search request signal for operating only the search means for the object is transmitted.

  Thus, the area setting means sets a search area for searching for a vehicle based on at least the discovery location of the vehicle when the search means finds a vehicle that matches the vehicle information, and the second transmission means When it is detected by the predetermined terminal device that the reception of the radio signal from the first transmission means is interrupted, and the vehicle matching the vehicle information is found by the search means, A search request signal for operating only the search means of the other vehicle that exists in the search area set by the area setting means among the other vehicles is transmitted, so that the vehicle that matches the vehicle information is searched. It is possible to prevent the vehicle from being searched in an area where it is considered unnecessary.

  According to a sixth invention, in the first invention, when the vehicle that matches the vehicle information is found by the search means of the own vehicle, the reporting means sends information on the discovery location of the vehicle to the predetermined reporting destination. In addition to reporting to the vehicle, it is configured to transmit information on the discovery location of the vehicle to surrounding vehicles existing in the vicinity of the vehicle. When receiving information on the discovery location of the vehicle in addition to the vehicle information, the vehicle is configured to search for a vehicle that matches the vehicle information with higher search accuracy as the location is closer to the discovery location. It is.

  As a result, when the vehicle receives the vehicle location information in addition to the vehicle information, the search means searches for a vehicle that matches the vehicle information with higher search accuracy as the vehicle is closer to the discovery location. The position can be reliably identified.

  According to a seventh invention, in the first invention, the second transmission means is a case where the interruption detecting means detects that the reception is interrupted, and the predetermined terminal apparatus uses the terminal apparatus When a request operation for requesting transmission of the vehicle information to the other vehicle is performed by the operator, the vehicle information is transmitted to the other vehicle, while the request by the operator is transmitted from the predetermined terminal device. When no operation is performed, the vehicle information is not transmitted to the other vehicle.

  Thereby, the second transmission means is a request for requesting transmission of the vehicle information to the other vehicle by the operator of the terminal device at a predetermined terminal device in the case where it is detected that the reception is interrupted by the interruption detection means. When the operation is performed, the vehicle information is transmitted to the other vehicle. On the other hand, when the operation requested by the operator is not performed at the predetermined terminal device, the vehicle information is not transmitted to the other vehicle. That is, the second transmission means transmits the vehicle information to the other vehicle on the assumption that the operator's requested operation has been performed.

  According to the first invention, when the second transmission means detects that the reception of the radio signal from the first transmission means is stopped at the predetermined terminal device by the interruption detection means, the reception is interrupted. Vehicle information stored in the storage means is transmitted to a vehicle other than the vehicle, and the search means searches for a vehicle that matches the vehicle information at least during traveling of the host vehicle when the host vehicle receives the vehicle information. When the vehicle matching the vehicle information is found by the search means of the own vehicle, the reporting means reports the information on the discovery location of the vehicle to a predetermined reporting destination. Even when the vehicle is not operated and the vehicle is moved and moved, the current position can be specified. Therefore, the anti-theft performance can be maintained in a high state.

  According to the third invention, when the vehicle that matches the vehicle information is found by the search means of the own vehicle, the reporting means notifies the predetermined reporting destination of the information on the discovery location of the vehicle. A notification stop request signal for notifying the surrounding vehicle existing in the vicinity of the own vehicle that the reporting means of the surrounding vehicle does not report the information on the discovery location of the vehicle to a predetermined reporting destination. In addition, when the own vehicle receives the notification stop request signal, even if a vehicle matching the vehicle information is found by the search means of the own vehicle, information on the discovery location of the vehicle is predetermined until a predetermined condition is satisfied. Therefore, it is possible to prevent a plurality of reporting means from reporting almost the same information to the predetermined reporting destination at the same time. Therefore, it is possible to efficiently report to a predetermined report destination of information on the vehicle discovery location.

  According to the fourth invention, the area setting means is stored at least in the storage means when it is detected by the interruption detection means that reception of the radio signal from the first transmission means is interrupted in the predetermined terminal device. The search area for searching the vehicle is set based on the parking position of the vehicle where the reception is interrupted, and the second transmission means receives the radio signal from the first transmission means at the predetermined terminal device by the interruption detection means. When it is detected that the vehicle has been interrupted, a search request for operating only the search means of the other vehicle that includes vehicle information and is present in the search area set by the area setting means among the other vehicles. Since the signal is transmitted, it is possible to prevent searching for the vehicle in an area where it is considered unnecessary to search for the vehicle that matches the vehicle information. Therefore, it is possible to reduce the amount of processing for searching for vehicles in the entire system.

  According to the fifth invention, when the vehicle that matches the vehicle information is found by the search means, the area setting means sets a search area for searching for the vehicle based on at least the discovery location of the vehicle, and the second transmission means Is a case where it is detected by the interruption detecting means that reception of the radio signal from the first transmitting means is interrupted by a predetermined terminal device, and when a vehicle matching the vehicle information is found by the searching means, A search request signal for operating only the search means of the vehicle including the vehicle information and existing in the search area set by the area setting means among the other vehicles is transmitted. It is possible to prevent searching for a vehicle in an area where it is considered unnecessary to search for the vehicle to be performed. Therefore, it is possible to reduce the amount of processing for searching for vehicles in the entire system.

  According to the seventh invention, the second transmission means is a case where the interruption detecting means detects that the reception has been interrupted, and the operator of the terminal apparatus uses the predetermined terminal apparatus to transmit the vehicle information for the other vehicle. When a request operation for requesting transmission is performed, vehicle information is transmitted to another vehicle. On the other hand, when a request operation by an operator is not performed at a predetermined terminal device, vehicle information is transmitted to the other vehicle. do not do. That is, the second transmission means transmits the vehicle information to the other vehicle on the assumption that the operator's requested operation has been performed. Therefore, it is possible to prevent the occurrence of malfunction of search means of other vehicles.

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

  As shown in FIG. 1 to FIG. 3, a vehicle antitheft system 1 according to an embodiment of the present invention includes an antitheft device 2 mounted on each of a plurality of vehicles 10. .., A management server 60, and a token ring network 70 for performing transmission and reception of telephone communications between them. In the present embodiment, the plurality of vehicles 10,... Have a target vehicle 10 that is a burglar theft object parked at a predetermined parking position at the time of parking, and a predetermined parking position around the target vehicle 10 at the time of parking. In addition to the target vehicle 10, the vehicle includes the first and second surrounding vehicles 10, 10 that are parked in the vehicle. The first and second peripheral vehicles 10 and 10 are present within a predetermined range (the predetermined range will be described later) from the parking position of the target vehicle 10 at the time of parking.

  As shown in FIGS. 2 and 3, each anti-theft device 2 is configured to be set in an anti-theft mode for preventing the theft of the host vehicle 10 based on a predetermined operation by an occupant of the host vehicle 10. Each anti-theft device 2 includes a burglar horn 11 that gives a sound alarm to the periphery of the host vehicle 10, a tilt sensor 12 that measures the tilt of the host vehicle 10, and impact sensors 13 and 13 that detect an impact on the host vehicle 10. , 13, door opening sensors 14, 14 for detecting that the locked door is opened, an image sensor 15 for photographing the inside of the host vehicle 10, and a remaining battery level of the host vehicle 10 are detected. Wireless communication between the battery level sensor 16 (not shown in FIG. 2), a telephone antenna 17 for performing transmission / reception of telephone communication, a mobile phone 18 connected to the telephone antenna 17, and the vehicles 10,. A wireless antenna 19 for transmitting and receiving a radio, a wireless transceiver 20 connected to the wireless antenna 19, and a GPS antenna for receiving current position information of the host vehicle 10 and the like. 21, a navigation controller 22 connected to the GPS antenna 21, a DVD changer 23 connected to the navigation controller 22, a microphone 24 for collecting sound, and an operation switch 25 for performing various operations. A keyless entry unit 26 for performing keyless entry, an imaging camera 27 (not shown in FIG. 2) for photographing the periphery of the host vehicle 10, a control unit 28 for performing various controls, and a memory 29. Yes. The theft determination means, the mode setting means, the control means and the search means according to the present invention correspond to the control unit 28, the alarm means corresponds to the Burglar horn 11, and the first transmission means and the notification means correspond to the telephone antenna 17. The searching means and the photographing means correspond to the imaging camera 27.

  The bar graph horn 11 is provided at the front end of the vehicle. The impact sensors 13, 13, and 13 are provided at the front portion of the vehicle and the left and right doors, respectively. The door open sensors 14, 14 are provided on the left and right doors, respectively. The telephone antenna 17 transmits a confirmation signal or the like to the portable terminal device 50 possessed by the owner of the host vehicle 10 at predetermined intervals. This confirmation signal is transmitted to the mobile terminal device 50 at predetermined intervals via the telephone antenna 17 as described above. In normal times, the portable terminal device 50 periodically receives a confirmation signal, and the portable terminal device 50 detects that an emergency such as the vehicle 10 being stolen has not occurred. On the other hand, for example, when a thief covers the telephone antenna 17 with a cloth or the like that does not transmit radio waves, destroys the telephone antenna 17, or prevents communication between the vehicle 10 and the portable terminal device 50, The mobile terminal device 50 detects that an emergency such as the mobile terminal device 50 being unable to receive a confirmation signal and the vehicle 10 being stolen has occurred. Further, the telephone antenna 17 is a portable terminal device in which when the vehicle 10 matching the ID number (registration number) of the vehicle 10 is found by the imaging camera 27 and the control unit 28, the owner of the vehicle 10 possesses the discovery signal. Sent to 50. This ID number is written on the license plate of the vehicle 10.

  The mobile phone 18 and the microphone 24 are provided in the vehicle. Specifically, the wireless antenna 19 is used to transmit and receive DSRC (narrow band) communication. The radio signal transmitted from the radio antenna 19 reaches a predetermined range (for example, a range of several meters to several hundred meters from the radio antenna 19). The wireless transceiver 20 is connected to the navigation controller 22. The imaging camera 27 is attached to the front part of the vehicle. Connected to the control unit 28 are a bergra horn 11, sensors 12, 13, 14, 15, 16, a mobile phone 18, a navigation controller 22, a microphone 24, an operation switch 25, a keyless entry unit 26, an imaging camera 27, and a memory 29. Has been. The control unit 28 operates the burglar horn 11 and the like of the host vehicle 10 based on the detection information of the sensors 12, 13, 14 and 15. Specifically, the control unit 28 determines whether or not the host vehicle 10 is about to be stolen based on the detection information of each of the sensors 12, 13, 14, and 15. Is determined to be stolen, the burglar horn 11 of the host vehicle 10 is operated. Further, when the host vehicle 10 receives the search request signal, the control unit 28 includes a vehicle included in the search request signal based on an image taken by the imaging camera 27 of the host vehicle 10 at least while the host vehicle 10 is traveling. The vehicle 10 that matches the ID number of 10 is searched. Details of the processing of the control unit 28 will be described later. The radio signal according to the present invention corresponds to the confirmation signal.

  As shown in FIG. 3, each mobile terminal device 50 includes a display 51, a memory 52, a speaker 53, an operation switch 54 for performing various operations, a communication unit 55 for performing transmission / reception of telephone communication, And a control unit 56 for performing various controls. A display 51, a memory 52, a speaker 53, an operation switch 54, and a communication unit 55 are connected to the control unit 56, respectively. When the communication unit 55 of the portable terminal device 50 has not received a confirmation signal or the like from the vehicle 10 owned by the owner of the portable terminal device 50 for a predetermined time or longer, the communication unit 55 of the portable terminal device 50 Send a search request signal. Details of the processing of the mobile terminal device 50 will be described later. The second transmission unit corresponds to the communication unit 55, and the break detection unit and the area setting unit correspond to the control unit 56.

  As shown in FIGS. 1 and 3, the management server 60 is connected with a police, a security company, and the like in addition to a communication unit 62 for performing telephone communication with the memory 61. Various data of each vehicle 10 is registered in the memory 61. The various data includes data such as the ID number of each vehicle 10, the phone number of the mobile phone 18 of each vehicle 10, the parking position of each vehicle 10, and the phone number of the mobile terminal device 50 possessed by the owner of each vehicle 10. In addition to the above, data such as a search deadline, the latest discovery location, a search area, and the like of the vehicle 10 being searched by the other vehicle 10 is included. Note that the storage means according to the present invention corresponds to the memory 61.

-Process of control unit of anti-theft device for target vehicle and other vehicle and control unit of portable terminal device of owner of target vehicle-
The processing steps of the control unit 28 of the anti-theft device 2 of the target vehicle 10 and other vehicles (peripheral vehicles) 10,... And the control unit 56 of the portable terminal device 50 possessed by the owner of the target vehicle 10 will be described below with reference to FIG. It demonstrates based on the flowchart of these. The anti-theft device 2 of each vehicle 10 is set to the anti-theft mode. Further, the left part of FIG. 4 relates to the target vehicle 10, the central part relates to the mobile terminal device 50, and the right part relates to the other vehicle (peripheral vehicle) 10.

(Processing of control unit of anti-theft device for target vehicle)
In step S1, it is determined whether the door is locked by the keyless entry unit 26 or not. When the determination result of step S1 is YES, the process proceeds to step S2, while when NO, the process returns to the start.

  In step S2, it is determined whether or not the host vehicle 10 is about to be stolen. When the determination result of step S2 is YES, the process proceeds to step S3, and when NO, the process proceeds to step S7.

  In step S3, the burglar horn 11 of the host vehicle 10 is operated so that the volume becomes V1. Here, when the keyless unlock signal is received after the operation of the bar graph horn 11, the operation of the bar graph horn 11 is stopped when the ignition switch is turned on or when a predetermined time has elapsed.

  In step S4, it is determined whether or not the Burglar horn 11 of the host vehicle 10 has operated normally. Specifically, for example, it is determined whether or not the burglar horn 11 and the control unit 28 are disconnected, and whether or not the burglar horn 11 is blocked so that no sound is produced. Here, whether or not the Berger horn 11 and the control unit 28 are disconnected is determined, for example, based on whether or not a current flows between the Berger horn 11 and the control unit 28 when a voltage is applied between them. To do. Whether or not the Burglar horn 11 is blocked so that no sound is produced is determined based on, for example, the loudness of the Burglar horn 11 collected by the microphone 24. When the determination result of step S4 is YES, the process proceeds to step S5, and when NO, the process proceeds to step S6.

  In step S <b> 5, a theft alarm signal is transmitted via the telephone antenna 17 to the mobile terminal device 50 of the owner of the target vehicle 10. At this time, after the transmission of the theft alarm signal, the transmission of the theft alarm signal is stopped when the keyless unlock signal is received, when the ignition switch is turned on, or when a predetermined time has elapsed. Then, it progresses to step S7.

  In step S <b> 6, an alarm request signal is transmitted to the antitheft device 2 of the surrounding vehicle 10 via the wireless antenna 19.

  In step S <b> 7, the confirmation signal, the battery remaining amount signal, the current position information signal, and the ID number data of the other vehicle 10 are transmitted via the telephone antenna 17 to the portable terminal device 50 of the owner of the target vehicle 10. Here, the remaining battery level signal includes information on the remaining battery level of the target vehicle 10, and the current position information signal includes information on the current position of the target vehicle 10. Then return to the start.

(Processing of the control unit of the portable terminal device of the owner of the target vehicle)
In step S8, when the theft alarm signal is received through the communication unit 55, the fact that the target vehicle 10 is about to be stolen is displayed on the display 51, and an alarm is given to the owner of the target vehicle 10.

  In step S9, it is determined whether or not a confirmation signal or the like from the target vehicle 10 has been received for a predetermined time or more. That is, in step S9, it is determined whether reception of a confirmation signal or the like has been interrupted for a predetermined time or more. When the determination result of step S9 is YES, the process proceeds to step S10, and when NO, the process returns to step S9.

  In step S10, it is determined whether or not a battery remaining amount signal has been received before reception of a confirmation signal or the like from the target vehicle 10 is interrupted for a predetermined time or more. When the determination result of step S10 is YES, the process proceeds to step S17, and when NO, the process proceeds to step S11.

  In step S11, the theft alarm screen shown in FIG. 5 is displayed on the display 51, and the owner of the target vehicle 10 is caused to execute the theft alarm. This theft alarm screen includes a search request icon.

  In step S12, it is determined whether or not the search request icon has been operated. When the determination result of step S12 is YES, the process proceeds to step S13, and when it is NO, the process returns to the start.

  In step S13, a search area for the target vehicle 10 is set. Specifically, the search area of the target vehicle 10 is set based on the parking position of the target vehicle 10 and the latest discovery location information of the target vehicle 10 stored in the memory 61 of the management server 60. The range of this search area expands over time.

  In step S <b> 14, a search request signal is transmitted via the communication unit 55 only to the anti-theft device 2 of the other vehicle 10 that exists in the set search area. This search request signal includes information such as the ID number of the target vehicle 10 and the latest discovery location of the target vehicle 10 stored in the memory 61 of the management server 60. Further, the search request signal is configured to be transmitted only to the vehicle 10 existing in the search area by adjusting the transmission intensity and the directivity thereof.

  In step S15, it is determined whether a discovery signal from another vehicle 10 has been received. When the determination result of step S15 is YES, the process proceeds to step S16, and when NO, the process returns to the start.

  In step S16, the search result screen shown in FIG. 6 is displayed on the display 51, and information on the search result is notified to the owner of the target vehicle 10. This search result screen includes information such as the latest discovery date and time of the target vehicle 10, the latest discovery location of the target vehicle 10, and an image (not shown) of the target vehicle 10, a map reduction icon, a map enlargement icon, a police report Icons are included. When the owner of the target vehicle 10 selects the police report icon on the search result screen, the search result information is also notified to the police. Then return to the start.

  In step S <b> 17, the fact that the remaining battery level of the target vehicle 10 is equal to or less than the predetermined amount is displayed on the display 51 of the portable terminal device 50 of the owner of the target vehicle 10 to notify the owner of the target vehicle 10. . Then return to the start.

(Processing of the control unit of the anti-theft device for other vehicles)
In step S18, it is determined whether an alarm request signal from the target vehicle 10 has been received. When the determination result of step S18 is YES, the process proceeds to step S19, and when the determination result of step S19 is NO, the process proceeds to step S20.

  In step S19, the bergra horn 11 of the host vehicle 10 is operated so that the volume becomes V2. Here, the volume V2 is smaller than the volume V1. In addition, after the operation of the bar graph horn 11, when the transmission of the alarm request signal is stopped, when the keyless unlock signal is received, when the ignition switch is turned on, or when a predetermined time has elapsed, the operation of the bar graph horn 11 is stopped. .

  In step S20, it is determined whether a search request signal from the mobile terminal device 50 of the owner of the target vehicle 10 has been received. When the determination result of step S20 is YES, the process proceeds to step S21, while when NO, the process returns to the start.

  In step S <b> 21, the vehicle 10 that matches the ID number of the target vehicle 10 is searched based on the image captured by the imaging camera 27 of the host vehicle 10 while the host vehicle 10 is traveling or stopped. Here, the closer to the latest discovery location of the target vehicle 10, the higher the resolution of the image captured by the imaging camera 27, and the search for the vehicle 10 that matches the ID number of the target vehicle 10 with high search accuracy. Specifically, at a location far from (not close to) the latest discovery location of the target vehicle 10, an image of a range of a predetermined angle is captured by the imaging camera 27 and an ID number is set with respect to the image at a predetermined level of image resolution. The target vehicle 10 is searched by recognizing the image. As a result, the processing load of the control unit 28 is suppressed to some extent at a location far from the latest discovery location of the target vehicle 10. On the other hand, in the vicinity of the latest discovery location of the target vehicle 10, the imaging camera 27 captures an image in a range wider than the predetermined angle, and the image resolution is higher than the predetermined level with respect to the image. The target vehicle 10 is searched by image recognition of the ID number. As a result, the target vehicle 10 can be searched based on an image captured up to a range that is not imaged at a location far from the latest discovery location of the target vehicle 10 near the latest discovery location of the target vehicle 10 and is captured. When the ID number of the target vehicle 10 is very small (for example, the ID number of the vehicle 10 that is far away is captured, so that the ID number in the image is very small. Thus, even if the ID number is image-recognized, it is possible to search for the target vehicle 10 even when it is not possible to determine whether or not it matches the ID number of the target vehicle 10. When a predetermined time has elapsed after the search for the vehicle 10 that matches the ID number of the target vehicle 10 or the like, the search is terminated.

  In step S22, it is determined whether the target vehicle 10 has been found. When the determination result of step S22 is YES, the process proceeds to step S23, and when it is NO, the process returns to the start.

  In step S23, in addition to the mobile terminal device 50 of the owner of the target vehicle 10, a discovery signal is sent via the telephone antenna 17 to the anti-theft device 2 of the surrounding vehicle 10 existing around the host vehicle 10. Send. This discovery signal includes information such as the latest discovery date and time of the target vehicle 10, the latest discovery location of the target vehicle 10, and an image of the target vehicle 10. Then return to the start.

  Here, when the own vehicle 10 receives the discovery signal in step S23, the control unit 28 of the anti-theft device 2 of the other vehicle 10 uses the imaging camera 27 and the control unit 28 of the anti-theft device 2 of the own vehicle 10 as the target vehicle. Even if the vehicle 10 matching the ID number 10 is found, until the own vehicle 10 receives a discovery signal until a predetermined time elapses or until the own vehicle 10 leaves a predetermined distance from the latest discovery location of the target vehicle 10, The discovery signal is not transmitted to the mobile terminal device 50 of the owner of the target vehicle 10. The discovery signal according to the present invention corresponds to the notification stop request signal.

-Effect-
As described above, according to the present embodiment, when the communication unit 55 of the mobile terminal device 50 detects that the reception of the confirmation signal from the anti-theft device 2 of the vehicle 10 is stopped by the mobile terminal device 50, Vehicle information (in this embodiment, the ID number of the vehicle 10) stored in the memory 61 of the management server 60 that can identify the vehicle 10 that has stopped receiving, other than the vehicle 10 that has stopped receiving. When the host vehicle 10 receives the vehicle information, the imaging camera 27 and the control unit 28 of the anti-theft device 2 search for the vehicle 10 that matches the vehicle information at least while the host vehicle 10 is traveling, and The telephone antenna 17 of the prevention device 2 is used when the vehicle 10 matching the vehicle information is found by the imaging camera 27 and the control unit 28 of the anti-theft device 2 of the host vehicle 10. Since the information on the discovery location of the vehicle 10 is reported to the portable terminal device 50 owned by the owner of the vehicle 10, the thief does not operate the Burglar Horn 11, the mobile phone 18, the wireless transceiver 20 or the like of the vehicle 10. Even when the vehicle 10 is moved and moved, the current position can be specified. Therefore, the anti-theft performance can be maintained in a high state.

  Further, when the own vehicle 10 receives the vehicle information, the control unit 28 of the anti-theft device 2 searches for the vehicle 10 that matches the vehicle information based on the image taken by the imaging camera 27, and therefore matches the vehicle information. The vehicle 10 can be searched reliably.

  In addition, the telephone antenna 17 of the anti-theft device 2 detects information about the location of the vehicle 10 when the vehicle 10 matching the vehicle information is found by the imaging camera 27 and the control unit 28 of the anti-theft device 2 of the host vehicle 10. In addition to the mobile terminal device 50 of the owner of the vehicle 10, the telephone antenna of the antitheft device 2 of the surrounding vehicle 10 with respect to the surrounding vehicle 10 existing around the own vehicle 10. 17 transmits a discovery signal for not reporting the information on the discovery location of the vehicle 10 to the portable terminal device 50 of the owner of the vehicle 10, and when the own vehicle 10 receives the discovery signal, Even if the vehicle 10 matching the vehicle information is found by the imaging camera 27 and the control unit 28 of the anti-theft device 2, until the predetermined condition is satisfied (in this embodiment, the host vehicle 1 Until a predetermined time elapses after receiving a discovery signal or until the own vehicle 10 moves away from the discovery location of the target vehicle 10 by a predetermined distance), information on the discovery location of the vehicle 10 is stored in the portable terminal device of the owner of the vehicle 10 50, the telephone antennas 17 of the plurality of anti-theft devices 2 are prevented from reporting substantially the same information to the portable terminal device 50 of the owner of the vehicle 10 at the same time. Can do. Therefore, the information on the discovery location of the vehicle 10 can be efficiently reported to the mobile terminal device 50 of the owner of the vehicle 10.

  The control unit 56 of the mobile terminal device 50 stores at least the memory 61 of the management server 60 when the mobile terminal device 50 detects that reception of the confirmation signal from the anti-theft device 2 of the vehicle 10 is interrupted. A search area for searching the vehicle 10 is set based on the stored parking position of the vehicle 10 in which the reception is stopped, and the communication unit 55 of the mobile terminal device 50 prevents the vehicle 10 from being stolen by the mobile terminal device 50. When it is detected that the reception of the confirmation signal from the device 2 is interrupted, the vehicle information is included in the other vehicle 10 and within the search area set by the control unit 56 of the portable terminal device 50 of the other vehicle 10 Although the search request signal for operating only the imaging camera 27 and the control unit 28 of the anti-theft device 2 is transmitted to the vehicle information, In areas where it is considered to be unnecessary to search for the vehicle 10 to be capable of preventing the searched the vehicle 10. Therefore, the processing amount for searching the vehicle 10 in the entire system 1 can be reduced.

  Further, when the vehicle 10 matching the vehicle information is found by the imaging camera 27 and the control unit 28 of the anti-theft device 2 of the other vehicle 10, the control unit 56 of the mobile terminal device 50 is at least at the discovery location of the vehicle 10. Based on this, a search area for searching for the vehicle 10 is set, and the communication unit 55 of the mobile terminal device 50 detects that the reception of the confirmation signal from the anti-theft device 2 of the vehicle 10 is stopped by the mobile terminal device 50. If the vehicle 10 matching the vehicle information is found by the imaging camera 27 and the control unit 28 of the anti-theft device 2 of the other vehicle 10, the vehicle information is included in the other vehicle 10 and the other vehicle 10 Among them, the image capturing camera 27 of the anti-theft device 2 and the control of the anti-theft device 2 are present in the search area set by the control unit 56 of the mobile terminal device 50. And transmits a search request signal for operating only unit 28, it is possible to prevent searched the vehicle 10 in the area is considered to be unnecessary to search for the vehicle 10 to match the vehicle information. Therefore, the processing amount for searching the vehicle 10 in the entire system 1 can be reduced.

  Further, the imaging camera 27 and the control unit 28 of the anti-theft device 2 receive the vehicle information with higher search accuracy when the own vehicle 10 receives information on the discovery location of the vehicle 10 in addition to the vehicle information. Since the vehicle 10 that matches is searched, the current position can be reliably specified.

  Further, the communication unit 55 of the mobile terminal device 50 is a case where the mobile terminal device 50 detects that the reception of the confirmation signal from the anti-theft device 2 of the vehicle 10 has been stopped. When an operator of the mobile terminal device 50 operates a search request icon for requesting transmission of vehicle information to the other vehicle 10, the mobile terminal device 50 transmits vehicle information to the other vehicle 10. When the operator operates the search request icon, vehicle information is not transmitted to the other vehicle 10. That is, the communication unit 55 of the mobile terminal device 50 transmits vehicle information to the other vehicle 10 on the assumption that the operator has operated the search request icon. Therefore, the malfunction of the imaging camera 27 and the control unit 28 of the antitheft device 2 of the other vehicle 10 can be prevented in advance.

(Other embodiments)
In the above embodiment, the target vehicle 10 is a thief theft target for convenience, but other vehicles 10,. In that case, theft of other vehicles 10,... Can be prevented in the same manner as described above.

  Moreover, in the said embodiment, although the alarm means which concerns on this invention is comprised by the burglar horn 11, it is not restricted to this, The alarm means is what alerts by sound other than the burglar horn 11, what alerts by light, etc. It may be. Further, for example, two or more types of alarm means may be used in combination, for example, an alarm using sound and an alarm using light.

  Moreover, in the said embodiment, although the terminal device which concerns on this invention is comprised by the owner's portable terminal device 50 of the target vehicle 10, the management server 60 may be sufficient.

  Moreover, in the said embodiment, although the vehicle information which concerns on this invention is comprised by the ID number of the vehicle 10, it is not restricted to this, The information which can identify the vehicle 10, for example, the information of the external feature of the vehicle 10, and IC It may be a tag or the like.

  In the above embodiment, a confirmation signal or the like is transmitted via the telephone antenna 17 to the mobile terminal device 50 of the owner of the target vehicle 10 in step S7. Also good.

  In the above embodiment, the search request signal is transmitted only to those existing in the search area among the other vehicles 10 in step S <b> 14. A search request signal including data such as the ID number of the vehicle and information on the destination of the other vehicle 10 existing in the search area may be transmitted. At this time, only the search means (that is, the imaging camera 27 and the control unit 28 of the anti-theft device 2) of the vehicle 10 corresponding to the destination included in the search request signal can be operated.

  In the above embodiment, the storage unit according to the present invention is configured by the memory 61 of the management server 60, but is not limited thereto, and may be the memory 52 of each mobile terminal device 50. At this time, only various data of the vehicle 10 owned by the owner of the mobile terminal device 50 is registered in the memory 52 of each mobile terminal device 50, for example.

  Further, when the remaining battery level of the surrounding vehicle 10 is equal to or less than the predetermined amount, the Burglar horn 11 of the host vehicle 10 may not be operated even if the alarm request signal is received.

  The present invention is not limited to the embodiments, and can be implemented in various other forms without departing from the spirit or main features thereof.

  As described above, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. The scope of the present invention is indicated by the claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

  As described above, the present invention is useful for a vehicle antitheft system equipped with an antitheft device that is mounted on a vehicle and prevents the vehicle from being stolen.

1 is a configuration diagram of a vehicle antitheft system according to an embodiment of the present invention. It is a block diagram of an antitheft device. It is a block diagram of the antitheft system for vehicles. It is a flowchart which shows the process of a vehicle antitheft system. It is a figure which shows a theft alarm screen. It is a figure which shows a search result screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antitheft system for vehicles 2 Antitheft device 10 Vehicle 11 Burglar horn (alarm means)
12 Inclination sensor 13 Impact sensor 14 Door open sensor 15 Image sensor 16 Battery level sensor 17 Telephone antenna (first transmitting means, reporting means)
18 Mobile phone 19 Wireless antenna 20 Wireless transceiver 24 Microphone 27 Imaging camera (search means, photographing means)
28 Control unit (theft determination means, mode setting means, control means, search means)
50 mobile terminal device 52 memory 55 communication unit (second transmission means)
56 Control unit (disruption detection means, area setting means)
60 Management server 61 Memory (storage means)
70 Token Ring Network

Claims (7)

An alarm means mounted on a vehicle and for alarming the surroundings of the vehicle, a theft determination means for determining whether or not the vehicle is about to be stolen, and a theft based on a predetermined operation to prevent the vehicle from being stolen Anti-theft comprising mode setting means for setting the prevention mode and control means for operating the alarm means when the anti-theft determination means determines that the vehicle is being stolen when the anti-theft mode is set A vehicle anti-theft system comprising a device,
Storage means for storing vehicle information capable of specifying the vehicle;
A first transmission means mounted on the vehicle for transmitting a predetermined radio signal to a predetermined terminal device at predetermined intervals;
Interruption detection means for detecting that reception of a radio signal from the first transmission means is interrupted in the predetermined terminal device;
When it is detected by the interruption detection means that reception of the radio signal from the first transmission means is interrupted at the predetermined terminal device, the storage means stores the vehicle other than the vehicle in the storage means. Second transmitting means for transmitting vehicle information;
Search means mounted on the other vehicle and searching for a vehicle that matches the vehicle information at least during traveling of the host vehicle when the host vehicle receives the vehicle information;
And a reporting means for notifying a predetermined reporting destination of information on the discovery location of the vehicle when a vehicle matching the vehicle information is found by the search means of the host vehicle mounted on the other vehicle. An anti-theft system for vehicles. The vehicle antitheft system according to claim 1,
The searching means has photographing means for photographing the periphery of the own vehicle. When the own vehicle receives the vehicle information, the searching means searches for a vehicle that matches the vehicle information based on an image photographed by the photographing means. An antitheft system for a vehicle characterized by being configured as described above. The vehicle antitheft system according to claim 1,
The above reporting means
When a vehicle matching the vehicle information is found by the search means of the own vehicle, in addition to notifying the predetermined report destination of the information on the discovery location of the vehicle, The notification means of the surrounding vehicle is configured to transmit a notification stop request signal for not reporting the information on the discovery location of the vehicle to the predetermined reporting destination for the surrounding vehicle,
Further, when the own vehicle receives the notification stop request signal, even if a vehicle that matches the vehicle information is found by the search means of the own vehicle, the information on the discovery location of the vehicle is kept until the predetermined condition is satisfied. An anti-theft system for vehicles, characterized in that it is configured not to report to a predetermined reporting destination. The vehicle antitheft system according to claim 1,
In addition to the vehicle information, the storage means stores a parking position of the vehicle,
Based on at least the parking position of the vehicle stored in the storage means when the interruption detection means detects that the reception of the radio signal from the first transmission means is interrupted in the predetermined terminal device. It further comprises area setting means for setting a search area for searching for the vehicle,
The second transmission means transmits the vehicle information to the other vehicle when it is detected by the interruption detection means that reception of the radio signal from the first transmission means is interrupted by the predetermined terminal device. A vehicle that is configured to transmit a search request signal for operating only the search means of the other vehicle that is present in the search area set by the area setting means. Anti-theft system. The vehicle antitheft system according to claim 1,
When a vehicle that matches the vehicle information is found by the search means, the vehicle further comprises an area setting means for setting a search area for searching the vehicle based on at least the discovery location of the vehicle,
The second transmission means is a case where the predetermined terminal device detects that the reception of the radio signal from the first transmission means is interrupted by the interruption detection means, and the search means adds the vehicle information to the vehicle information. When a matching vehicle is found, only the search means of the other vehicle that includes the vehicle information and exists in the search area set by the area setting means among the other vehicles is operated. An anti-theft system for vehicles, characterized in that it is configured to transmit a search request signal. The vehicle antitheft system according to claim 1,
When the vehicle that matches the vehicle information is found by the search means of the own vehicle, the reporting means notifies the predetermined reporting destination of the information on the discovery location of the vehicle, It is configured to send information on the discovery location of the vehicle to nearby vehicles that exist in the vicinity,
The search means is configured to search for a vehicle that matches the vehicle information with higher search accuracy when the own vehicle receives information on the discovery location of the vehicle in addition to the vehicle information. An anti-theft system for vehicles, characterized in that The vehicle antitheft system according to claim 1,
The second transmission means includes
When the interruption detecting means detects that the reception is interrupted, a request operation for requesting transmission of the vehicle information to the other vehicle by the operator of the terminal device is performed at the predetermined terminal device. When the vehicle information is transmitted to the other vehicle,
The vehicle antitheft system, wherein the vehicle information is not transmitted to the other vehicle when the request operation by the operator is not performed at the predetermined terminal device.

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