JP5831215B2 - Vehicle security method and vehicle security system - Google Patents

Description

  The present invention relates to a vehicle crime prevention method and a vehicle crime prevention system.

  Conventionally, as shown in Patent Document 1, for example, there is a car security technique that detects a suspicious person outside a vehicle and issues a warning.

JP 2008-107961 A

  However, these car security technologies are configured to output a predetermined warning when a suspicious person is detected by a predetermined detection method. In these cases, there is a possibility that the suspicious person may be detected by mistake. As a result, a warning / intimidation may be mistakenly output to a normal passerby who is not harmful, and there is a risk of being surprised or uncomfortable. For this reason, if a detection device with high detection accuracy of a suspicious person is to be used, one detection process tends to be heavy, and if a detection process is frequently performed in a situation where people are likely to approach, There is a problem that a large burden is applied and the battery is wasted.

  It is also important to detect suspicious persons and warn and intimidate, but it is also important from the viewpoint of local crime prevention to collect information that can identify suspicious persons when they are detected. It is. However, in the case of such information collection as well as warning output, if there are many false detections, wasteful information collection is performed, which places a heavy burden on the detection device and the information collection device, leading to wasted battery and memory.

  An object of the present invention is to provide a vehicle crime prevention method and a vehicle crime prevention system that can effectively output a warning to a suspicious person and collect information related to the suspicious person, and can increase the crime prevention level of the vehicle as compared with the prior art.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, the vehicle crime prevention method of the present invention includes:
An approaching object detection step in which an approaching object detection means detects an approaching object approaching the vehicle;
A level determination information acquisition step in which the level determination information acquisition means acquires level determination information that is a basis for determination of the danger level for the detected approaching object;
A danger level setting step in which the danger level setting means sets the danger level of the vehicle based on the acquired level determination information;
A warning output step in which a warning control means causes a predetermined warning output means to execute warning output by a warning technique corresponding to a set danger level; and
Evidence acquisition step in which the evidence acquisition control means acquires the evidence information of the type corresponding to the set danger level in a predetermined evidence acquisition means;
Have a, in the security level setting step, and a trigger that risk level by the risk level setting means is set to a new level, whether it is the next higher security level of the current security level is the new level In such a form, the risk level is switched and set step by step, and if it is determined that the current risk level is the next higher risk level than the new level, then Perform the level judgment to be performed at shorter time intervals,
The evidence acquisition step is characterized in that the evidence acquisition means acquires evidence information having a larger data amount as the risk level becomes higher .

  According to the configuration of the present invention, the output content of warning output and the collection content of evidence collection can be changed according to the danger level. Accordingly, it is possible to perform setting so that warning output with a lower device burden on the warning output device is performed as the danger level is lower, and warning output with a higher device burden on the warning output device is performed as the danger level is higher. In other words, when the danger level is low, a warning output with a small equipment load is made, but the output is inevitably weak, so if the approaching person is not a suspicious person, the approaching person will be surprised excessively. You don't have to worry about it. On the other hand, when the danger level is high, a warning output with a heavy equipment load is made, but the output is inevitably strong, so that a warning and intimidation can be reliably performed on an approaching suspicious person. Further, it can be set so that evidence collection with a small equipment burden on the evidence acquisition device is performed as the danger level is low, and evidence collection with a large equipment burden on the evidence collection equipment is performed as the risk level is high. That is, when the risk level is low, evidence collection with a small equipment burden, for example, evidence information with a small amount of data can be collected, so that the burden on the equipment and excessive use of memory can be suppressed. Conversely, when the risk level is high, evidence collection with a large equipment burden, for example, evidence information with a relatively large amount of data, such as video and audio, can be performed. Evidence that identifies the suspicious person can be reliably obtained.

  In the present invention, the risk levels are determined in stages, and level determination information for determining whether or not each level is associated with each level is associated with each level. It can be configured such that the information types of the level determination information are different from each other. As a result, the risk level can be determined not based on a single piece of information but based on a plurality of types of information, so that a more accurate risk level can be determined.

  In the danger level setting step of the present invention, the danger level setting means is triggered by the fact that the danger level is set to a new level, and whether or not the current danger level is the next highest danger level after the new level. In such a manner that the level is determined, the danger level can be switched and set step by step. As a result, since the danger level increases step by step, warning output and information collection with a high equipment burden are not suddenly performed by erroneous danger level determination. That is, since the risk level determination is made in order from the lowest level, the determination accuracy of the risk level is high, and it is difficult to make an incorrect risk level determination.

  In the danger level setting step according to the present invention, when the danger level setting means determines that the danger level is equal to or lower than a predetermined level, is the next risk level executed, whether the danger level is the next highest danger level? It can be configured that the determination of the level of “no” is performed after a predetermined period longer than the level determination of other levels. For example, when it is determined that the danger level is the lowest level, a level determination as to whether or not the next risk level is the next highest danger level after the lowest level is made in advance longer than the other levels. It can be configured to be implemented after a predetermined period. When the danger level is high, it makes sense to continuously judge the danger level and repeat the warning output and evidence collection. However, when the danger level is low, frequent danger level judgment consumes the equipment. Only. According to said structure, consumption of useless equipment can be suppressed.

  In the present invention, the danger levels are determined in stages, and warning techniques for warning outputs output at the respective levels are associated with the respective danger levels, and the warning techniques corresponding to the respective danger levels are mutually associated. Can be configured to be different. As a result, the warning output can be performed with a plurality of types of output contents (warning technique) instead of one output content (warning technique). Therefore, if warning output at a certain danger level is not recognized, In a configuration in which the same warning output is performed even at the next level, it may not be recognized at the next level, but this may be recognized if a warning output in a different form is performed at the next level. As a result, the warning to the approaching person can be performed more reliably. In this case, changing the warning output means (device that performs warning output) for each danger level and changing the warning output to another device will inevitably cause the warning method (warning method) to occur. The certainty of recognition increases.

  In the evidence acquisition step of the present invention, the level determination information acquired by the level determination information acquisition means can be acquired as evidence information. Thereby, the level determination information acquisition means and the evidence acquisition means can be used in common, and the apparatus configuration can be simplified.

  In the present invention, the evidence information acquired in the evidence acquisition step can be configured to include an evidence storage step in which the evidence storage means stores and stores the evidence information in a predetermined evidence storage unit. According to this configuration, it is possible to reliably store and accumulate evidence and contribute to the identification and discovery of suspicious persons.

  In the evidence storage step according to the present invention, when the danger level exceeds a predetermined warning level, the evidence storage means can be configured to store the evidence information corresponding to the danger level. According to this configuration, since the upper part of the evidence is not stored when the danger level is low, the memory is not wasted.

  In the present invention, it has a date information acquisition step of acquiring date information by the date information acquisition means, and in the evidence storage step, when acquiring the evidence information in the evidence acquisition step, the date information acquisition step The acquisition date and time information is acquired, and this can be configured to be stored in the evidence storage unit by the evidence storage means in association with the acquired evidence information. According to this configuration, the date and time when the evidence is acquired can be obtained together with the evidence, which can contribute to the identification, tracking and discovery of the suspicious person.

  In the evidence storage step of the present invention, the evidence storage means may classify and store the evidence information acquired in the evidence acquisition step according to a predetermined date / time condition based on the acquisition date / time information of the evidence information. it can. According to this configuration, the evidence is classified based on the evidence acquisition date and stored in an organized manner, so that the processing for distributing and browsing the requested evidence is facilitated.

  In the present invention, there is a position information acquisition step of acquiring position information indicating the current position of the vehicle by the position information acquisition means, and in the evidence storage step, when acquiring the evidence information in the evidence acquisition step, the position information acquisition step The position information of the vehicle can be acquired at, and the evidence storage means can be configured to store it in the evidence storage unit in a form associated with the acquired evidence information. According to this configuration, it is possible to obtain the position where the evidence is acquired together with the evidence, so that it is possible to contribute to the identification, tracking and discovery of the suspicious person.

  In the evidence storing step, the evidence storing means can classify and store the evidence information acquired by the evidence acquiring means for each predetermined position condition based on the position information corresponding to the evidence information. According to this configuration, the evidence is classified based on the evidence acquisition position, organized and stored, so that the processing for distributing and browsing the requested evidence is facilitated.

  In the present invention, an approaching object detection means, warning output means, evidence acquisition means, level determination information acquisition means, danger level setting means, warning control means, evidence acquisition control means, and evidence storage are provided in the vehicle. A vehicle-side storage unit that forms a part and a vehicle-side evidence storage unit that forms an evidence storage unit. The vehicle-side evidence storage unit stores and accumulates evidence information relating to the vehicle in the vehicle-side storage unit. Can be configured. By providing evidence browsing means on the vehicle, evidence information relating to the vehicle stored and accumulated in the vehicle-side storage unit by the evidence browsing means can be viewed on the vehicle. That is, it becomes possible for the vehicle owner or the like to view the suspicious person's evidence acquired in the own vehicle.

  In the present invention, the vehicle is provided with approaching object detection means, warning output means, evidence acquisition means, level determination information acquisition means, danger level setting means, warning control means, and evidence acquisition control means. Further, there is provided information transmitting means for transmitting the evidence information acquired by the evidence acquiring means to an external device outside the vehicle via the communication means, while the external device has evidence information transmitted from a plurality of different vehicles. Information receiving means, an external storage section forming an evidence storage section, and an external storage means forming an evidence storage section are provided. The external storage means stores the received evidence information of each vehicle in the external storage section. Can be configured to accumulate. According to this configuration, since the evidence information acquired by a large number of vehicles is managed by a single external management device, the suspicious person can be identified and tracked based on the collected large number of evidence information. You can make a discovery. If date / time information and location information are specified, the same suspicious person can be easily identified, tracked and discovered.

  In the present invention, the vehicle is provided with an approaching object detection means, a warning output means, an evidence acquisition means, and a level determination information acquisition means. Further, an approaching object is connected to an external device provided outside the vehicle. Information transmission means for transmitting detection results of detection means and acquisition information of level determination information acquisition means via communication means, control command receiving means for receiving control commands for warning output means and evidence acquisition means, and received control Based on the instruction, the warning output means and the evidence acquisition means are provided with warning control means and evidence acquisition control means for executing the warning output and evidence information acquisition, while the external device receives the detection result and the acquisition information. An information receiving means, a risk level setting means, an external storage section that forms an evidence storage section, and an external storage section that forms an evidence storage section are provided. Both pieces of evidence information are stored and accumulated in the external storage unit, and the external device further stores the received information according to the danger level set in the danger level setting means based on the information received by the information receiving means. The transmission source vehicle 2 can be configured to be provided with a control command transmission unit that transmits a control command for the warning output unit and the evidence acquisition unit via the communication unit. According to this configuration, since the evidence information acquired by a large number of vehicles is managed by a single external management device, the suspicious person can be identified and tracked based on the collected large number of evidence information. You can make a discovery. If date / time information and location information are specified, the same suspicious person can be easily identified, tracked and discovered. Moreover, since the risk level determination, warning method determination, and evidence content (evidence type) to be collected are determined not on the vehicle side but on the external device side, the equipment burden on the vehicle side can be greatly reduced.

  In the present invention, there can be configured an evidence browsing step of browsing the evidence information stored and accumulated in the evidence storage unit by the evidence browsing means. Specifically, in a terminal device different from the external device, evidence browsing means and evidence requesting means for requesting distribution of evidence information stored / stored in the external storage unit to the external device via the communication means Request evidence receiving means for receiving the evidence information as a reply to the request via the communication means, and the received evidence information can be viewed on the terminal device by the evidence browsing means, while the external device An evidence request receiving means for receiving a request from the terminal device via the communication means, and a request evidence transmitting means for transmitting the evidence information corresponding to the received request to the requesting terminal device via the communication means; , Can be provided. As a result, the collected evidence can be viewed on a terminal different from the device that stores the evidence. Further, evidence browsing means may be provided in the external device, and evidence information stored and stored in the external storage unit by the evidence browsing means may be configured to be browseable on the external device.

  In the present invention, the danger level can be determined in stages. For example, the detection of an approaching object to the vehicle is set as the first danger level, and the approaching object is specified as a predetermined alert target (for example, a person) as the second danger level higher than the first danger level, The case where the predetermined suspicious behavior of the alert target is specified is set as a third danger level higher than the second danger level, and it can be configured to have at least three danger levels.

  The level determination information acquisition means in the present invention has an approaching object distance specifying means for specifying the distance between approaching objects between the approaching object detected by the approaching object detection means and the vehicle, and the specified approaching object distance. Is obtained as level determination information, and the danger level setting means can be configured to increase the danger level by one step when the distance between the approaching objects falls below a predetermined reference distance. Thereby, the first danger level can be set.

  The level determination information acquisition means in the present invention has a photographing means for photographing the periphery of the vehicle, acquires image data of the photographed photographed image as level judgment information, and the danger level setting means is displayed on the photographed image. An approaching object is specified, and further, the type of the approaching object is specified. When the type is a predetermined alert target type (for example, person), the danger level can be increased by one level. Thereby, the second danger level can be set.

  The level determination information acquisition means in the present invention has a moving image shooting means for shooting a moving image around the vehicle, acquires moving image data of the shot moving image as level determination information, and the danger level setting means includes the moving image video When the approaching object displayed on the screen is specified, and the movement of the approaching object is specified, and the movement matches a predetermined suspicious behavior pattern, the danger level can be increased by one step. Thereby, the third danger level can be set.

  The level determination information acquisition means in the present invention has recording means for recording sounds around the vehicle, acquires the recorded voice data as level determination information, and the danger level setting means includes a keyword included in the acquired voice data. If the keyword matches a predetermined suspicious keyword, the risk level can be increased by one level. Thereby, the third danger level can be set. When a suspicious behavior pattern is detected and even a suspicious keyword is detected, this is set to the maximum warning level, and the maximum warning output and evidence collection are performed to ensure that the vehicle is protected against crime. You can easily identify the suspicious person who is detected.

  The vehicle security system of the present invention includes the above-described steps (approaching object detection step, level determination information acquisition step, danger level setting step, warning output step, evidence acquisition step, and evidence storage step, The position information acquisition step and the evidence browsing step can be executed, whereby a system having the effect of the vehicle crime prevention method described above can be constructed.

The block diagram which shows simply the structure of the crime prevention system for vehicles which is one Embodiment of this invention. The block diagram which shows simply the structure of the vehicle in the vehicle crime prevention system of FIG. Explanatory drawing for demonstrating approaching object detection and evidence acquisition with the vehicle in the vehicle crime prevention system of FIG. The block diagram which shows simply the structure of the management apparatus (external device) in the vehicle crime prevention system of FIG. The block diagram which shows simply the structure of the terminal device (viewing terminal device) in the vehicle crime prevention system of FIG. The 1st flowchart explaining the flow of a process of the crime prevention program which a vehicle performs. The 2nd flowchart explaining the flow of a process of the crime prevention program which a vehicle performs. The 3rd flowchart explaining the flow of a process of the crime prevention program which a vehicle performs. The 4th flowchart explaining the flow of a process of the crime prevention program which a vehicle performs. The 5th flowchart explaining the flow of a process of the crime prevention program which a vehicle performs. The flowchart explaining the flow of acquisition / transmission processing of date information and position information. The flowchart explaining the flow of the data transmission / storage process from a vehicle to a management apparatus. The figure which shows the content (warning technique) of the warning output in each danger level. The figure which shows the transmission content transmitted to a management apparatus from a vehicle in each danger level. The flowchart which shows the flow of the data reception process of a management apparatus. The flowchart which shows the flow of the data storage process of a management apparatus. The figure which shows the 1st example of the memory | storage data of a management apparatus. The figure which shows the 2nd example of the memory | storage data of a management apparatus. The flowchart which shows the flow of the data browsing request process of a terminal device. The flowchart which shows the flow of the data browsing request reception process of a management apparatus. The flowchart which shows the flow of the request data delivery process of a management apparatus. The flowchart which shows the flow of the request data browsing process of a terminal device. The flowchart which shows the flow of the browsing process of own memory data in a vehicle. The flowchart which shows the flow of the browsing process of own memory data in a management apparatus. The 1st example of the browsing display of the data which a management apparatus or a vehicle memorizes. The 2nd example of the browsing display of the data which a management apparatus or a vehicle memorizes. The flowchart explaining the 1st danger level determination information transmission process implemented in the crime prevention system for vehicles of this invention different from FIG. The flowchart explaining the 1st risk level determination and evidence collection process in embodiment of FIG. The flowchart explaining the greeting output process in embodiment of FIG. The flowchart explaining the 1st of the warning output process in embodiment of FIG. The flowchart explaining the 2nd of the warning output processing in embodiment of FIG. The flowchart explaining the 2nd danger level determination information transmission process in embodiment of FIG. The flowchart explaining the 2nd risk level determination and evidence collection process in embodiment of FIG. The flowchart explaining the 3rd of the warning output processing in embodiment of FIG. The flowchart explaining the 3rd danger level determination information transmission process in embodiment of FIG. The flowchart explaining the 3rd risk level determination and evidence collection process in embodiment of FIG. The flowchart explaining the 4th of the warning output processing in embodiment of FIG. The flowchart explaining the 4th danger level determination information transmission process in embodiment of FIG. The flowchart explaining the 4th risk level determination and evidence collection process in embodiment of FIG. The flowchart explaining the 5th of the warning output processing in embodiment of FIG.

  Hereinafter, an embodiment of a vehicle crime prevention system of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram schematically showing a vehicle crime prevention system according to an embodiment of the present invention. A vehicle security system 1 shown in FIG. 1 includes a plurality of vehicles 2 corresponding to the system 1 and an external management device (external device) 4 connected via a communication means (external communication network) 5 such as the Internet. Further, the management device 4 and a terminal device (browsing terminal device) 3 for browsing predetermined management information managed by the management device 4 are connected via the communication means 5.

  As shown in FIG. 2, the vehicle 2 includes an approaching object detection device (approaching object detection means) 201, evidence acquisition devices (level determination information acquisition means and evidence acquisition means) 202 and 203, a car navigation device 204, a warning Output devices (warning output means) 205 to 208, key communication system 209, external communication device 210, storage device (vehicle side storage unit) 211, timing device 212, display device 213, operation device 214, and sound The output device 215 has a configuration connected to the main control unit 200.

  The approaching object detection device 201 is an approaching object detection unit that detects the approaching object 9 approaching the vehicle 2 from the outside of the vehicle. In the present embodiment, the approaching object detection device 201 is a plurality of sonars provided on the outer periphery of the vehicle. The main control unit 200 is connected by a controller area network. It has a configuration for receiving a reflected wave with respect to a detection wave (in this case, an ultrasonic wave) transmitted toward the outside of the vehicle, and detects an approaching object 9 around the vehicle based on the presence or absence of the reception. Further, here, the time between sending the detection wave and receiving the reflected wave is counted, and based on the time, the distance between the vehicle 2 and the approaching object 9 (distance between approaching objects) is specified. It also functions as a distance specifying means. As shown in FIG. 3, the sonar 201 of the present embodiment is configured to detect an approaching object 9 approaching each door in addition to a corner sonar provided at the vehicle corner and a back sonar provided at the rear end of the vehicle. And a sonar provided corresponding to the door.

  The evidence acquisition devices 202 and 203 are evidence acquisition means for acquiring predetermined evidence information that contributes to the identification of the detected approaching object 9, and in this embodiment, the video acquisition and still images around the vehicle are taken. A camera (photographing means) 202 and a sound recording device (recording means) 203 for recording sounds around the vehicle are provided as one device as shown in FIG. 3, and are connected to the main control unit 200 by CAN. The camera 202 and the recording device 203 of the present embodiment are arranged on the front, rear, left and right of the vehicle 2 so as to cover the approaching object detection range of the sonar 2, and each has a shooting range on the outside of the vehicle.

  The warning output devices 205, 206, 207, and 208 are warning output means for executing a predetermined warning output for the detected approaching object 9, and in this embodiment, as a lighting device (lamps). A head lamp 205 (the beam can be switched between high and low), a fog lamp 206 (hazard lamp, tail lamp, cornering lamp, stop lamp, etc. may be used), interior lighting 207, and buzzer 208 are included.

  The external communication device 210 is for connecting to the Internet or the like constituting the communication means (external network) 5 and can exchange information (data) with the external management device 4 via the communication means 5. To.

  The storage device 211 is an external storage device configured by, for example, a hard disk drive (HDD).

  The timing device 212 is date / time information acquisition means for acquiring date / time information indicating the date / time, and here, a calendar clock is used.

  The display device 213 is configured by a known color liquid crystal display, and performs display based on a display command and display data sent from the control unit 200. The audio output device 215 is configured as a known speaker, and converts designated digital audio data into analog audio based on an audio output command sent from the control unit 200 and outputs the analog audio.

  The operation device 214 may be a mechanical switch provided in the vehicle interior, a touch panel provided on the screen of the display device 213, a remote control, or the like.

  The key communication system 209 is a key detection means for detecting the presence of the portable key 90 existing in a predetermined area outside the vehicle 2 by performing bidirectional wireless communication from the transmission / reception units 291 and 292. Connect to the control unit 200. The key communication system 209 here is a so-called smart entry system 209, and includes a control unit 290, a radio wave transmission unit (LF transmission unit) 291 and a radio wave reception unit (UHF reception unit) 292 as shown in FIG. The controller 290 stores a master code (collation data) for collating the corresponding collation code of the key 2.

  The control unit 290 on the vehicle 2 side has the same configuration as that of a normal computer having a CPU, a ROM, and a RAM, and governs overall control related to the smart entry system 209. The radio wave transmission unit 291 wirelessly transmits various signals from each antenna to a predetermined area outside the vehicle based on a command from the control unit 30 at a predetermined frequency in the LF band. On the other hand, the radio wave receiving unit 292 wirelessly receives a signal related to key verification of a predetermined frequency in the UHF band from the key 2.

  On the other hand, the key 2 has a control IC (not shown), a radio wave transmission unit (UHF transmission unit), and a radio wave reception unit (LF reception unit) as main components, and a signal wirelessly output from the vehicle side. It is configured to be able to receive and reply, and includes a storage unit that stores a unique verification code (verification data in the figure) and an operation switch that forms an operation input unit.

  Here, the collation process (smart key control) performed between the vehicle and the key will be briefly described.

  First, on the vehicle 2 side, the control unit 290 causes the radio wave transmission unit 291 to wirelessly transmit an activation signal as a key search radio wave from the antenna at a predetermined cycle, and enters a state of waiting for an activation response signal from the key 2. On the other hand, when this is wirelessly received on the key 2 side, the sleep state of the control IC is canceled and the activated state is entered, and an activation response signal is wirelessly transmitted. Next, when the radio wave reception unit 292 receives the activation response signal, the control unit 290 on the vehicle 2 side causes the radio wave transmission unit 291 to wirelessly transmit a verification code request signal to the key 2 and performs verification as a request response signal from the key 2. It will be in the reception waiting state for the verification signal including the code. On the other hand, when this is wirelessly received on the key 2 side, the key control IC wirelessly transmits a verification signal including its verification code as a request response signal. Then, when the UHF receiving unit 292 receives the verification signal, the control unit 290 on the vehicle 2 side compares the verification code included therein, and if the verification is OK, it corresponds to the door of the vehicle 2 (corresponding to the antenna that received the verification code). Doors or all doors) are set to the unlocking permitted state, and the door unlocking is not permitted when the verification is NG. A door that has been unlocked can be unlocked by operating a door switch.

  Here, the activation signal transmitted from the vehicle 2 side includes a vehicle type verification code (vehicle type identification information) having a smaller amount of information than the key-specific verification code (key identification information) described above, and this is received wirelessly. The key 2 to be driven is driven by the received activation signal power, collates the vehicle type collation code by simple calculation, and enters the activated state when the collation is OK. The vehicle type verification code in the present embodiment is a code determined for each vehicle manufacturer, but may be a code determined for each vehicle type.

  The car navigation device 204 includes a position detector 240 having a GPS receiver, a storage unit (not shown) for storing map data and a navigation program (not shown), various operation units (not shown), voice guidance, etc. For example, a display unit (not shown) composed of an LCD or the like, a navigation control unit (not shown) to which these are connected, and the like. Connect to the main control unit 200.

  The position detector 240 acquires vehicle current position information, and is a known geomagnetic sensor, gyroscope, distance sensor, and a GPS receiver for GPS that detects the position of the vehicle based on radio waves from a satellite. Have Since these sensors 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 sensors described above may be used, and further, a steering rotation sensor, a wheel sensor of each rolling wheel, or the like may be used.

  The navigation control unit has a known microcomputer configuration including a CPU, a ROM, and a RAM. When the navigation program of the storage unit is started, it becomes possible for the user to accept the destination input. When the destination is input, the current position of the vehicle is calculated based on the satellite data obtained from the GPS receiver 240, and the calculation is performed. A process for obtaining an optimum route from the current position to the destination is performed. Then, the guidance route is superimposed and displayed on the screen of the display unit together with the road map, and an appropriate route to the destination is guided to the user. As a method for automatically setting an optimal route, a method such as the Dijkstra method is known.

  The main control unit 200 of the vehicle security system 1 has a known microcomputer configuration including a CPU, a ROM, and a RAM, and executes a program stored in the ROM or the storage device 211. In the present embodiment, Performs processing for executing the danger level determination processing, warning output control, and evidence acquisition control shown in FIGS. 6 to 10, the approaching object detection device 201 detects the approaching object 9 approaching the vehicle 2 (approaching object detection step), and level determination information that serves as a basis for determining the danger level for the detected approaching object 9. Is acquired from the approaching object detection device 201 and the evidence acquisition devices 202 and 203 (level determination information acquisition step), and the main control unit 200 sets the danger level of the vehicle 2 based on the acquired level determination information. (Danger level setting step means) The various warning output devices 205 to 208 execute warning output by a warning method corresponding to the set danger level (warning output step), while the evidence acquisition devices 202 and 203 The type of evidence information corresponding to the set danger level is acquired (evidence acquisition step).

  Here, the processes in FIGS. 6 to 10 will be described in detail.

  In the process of FIG. 6, first, the main control unit 200 causes the approaching object detection unit 9 to start detecting the approaching object 9 approaching the vehicle 2 (S11: approaching object detection step). Here, the main control unit 200 outputs a control signal instructing each sonar 201 to transmit a detection wave, transmits the detection wave to the sonar 201 that has received the control signal, and detects the presence or absence of reception of the reflected wave (level determination). Information) (level determination information acquisition step). If the reflected wave with respect to the transmitted detection wave is not received (S12: No), it is determined that there is no approaching object 9, and the danger level of the vehicle 2 is set to level 0 (S19: danger level setting step).

  On the other hand, when the reflected wave is received (S12: No), it is determined whether or not the approaching object 9 is a suspicious object that is safe with respect to the vehicle 2 (S13: danger level setting step). ). Here, in order to determine whether or not the main control unit 200 is a user of the vehicle 2 from the approaching object 9, the mobile key 90 corresponding to the vehicle 2 is detected from the approaching object 9. Specifically, the main control unit 200 instructs the control unit (key ID verification unit) 290 of the smart entry system 209 to transmit a key search radio wave periodically transmitted from the transmission unit 291, and receives the reception unit 292. Requests the reception result of the response signal (presence / absence of reception: level determination information). When the response signal is received, the main control unit 200 determines that the portable key 90 is present (S14: Yes) and welcomes the key owner (S18). Here, the fog lamp 206 blinks once. Then, the danger level is set to zero (S19: danger level setting step). Then, this process ends.

  On the other hand, when the response signal is not received, the main control unit 200 determines that there is no portable key 90 (S14: No), and raises the danger level by one level to level 1 (S15: danger level setting step). Furthermore, the navigation apparatus 204 is requested for date information and position information. As shown in FIG. 11, when the navigation device 204 receives this request (S101: Yes), it extracts date and time information and position information from the GPS signal acquired by the position detector (GPS receiver) 240, and performs main control. It returns to the unit 200 (S102). The date / time information may be acquired from the timing device 212. When the main control unit 200 receives the date information and position information (S16: date information acquisition step and position information acquisition step), the main control unit 200 uses the identification information of the host vehicle 2 and the risk level information indicating the occurrence of the risk level 1. Association data associated with (approaching object detection information) is created, and is temporarily stored as transmission data (transmission data 1: see FIG. 14) to be transmitted later (S17: external transmission data creation step). On the other hand, the main control unit 200 outputs a control command to cause the corresponding warning output device 206 to output a warning output corresponding to the danger level 1 (see FIG. 13) (S17: warning output step). Then, this process ends.

  Here, the start timing of the process of FIG. 6 is set in S20 so that it periodically arrives at predetermined time intervals as long as the danger level is zero. The start timing of the processing in FIG. 6 when the danger level is zero may be periodically performed so as to coincide with the transmission timing of the key search radio wave of the smart entry system 209. In this case, the process of S13 can be a process of acquiring the key search result in the control unit 290 based on the key search radio wave transmitted with the start of the process of FIG. On the other hand, for other danger levels (risk level 1 or higher), the danger level judgment after the change is made according to the change of the danger level, considering that the danger is not completely cleared. Execute promptly at a time interval shorter than the time interval when zero is zero.

  In addition, the mobile key 90 may be detected without using the smart entry system 209 and may have a configuration in which key ID collation processing by bidirectional wireless communication similar to the smart entry system 209 is separately performed. In this case, it is possible to arbitrarily adjust the communicable distance by changing the transmission / reception frequency band of bidirectional wireless communication. If the communicable distance is extended, the order of the approaching object detection and the key detection is changed by determining that the communication object distance is outside the approaching object detection area. If the key 90 is not detected, the approaching object 9 is not detected. It is good also as a simple structure.

  When the danger level is raised from level zero to level 1 in the process of FIG. 6, the process of FIG.

  In the process of FIG. 7, first, the main control unit 200 outputs a control signal instructing each sonar 201 to transmit a detection wave, causes the sonar 201 that has received this to transmit a detection wave, and receives a reflected wave. Is obtained as a detection result (level determination information) (S21: level determination information acquisition step). What was obtained at the time of detection of S11 of Drawing 6 may be used. Then, based on the obtained detection result, the distance between the vehicle 2 and the approaching object 9 (distance between approaching objects: level determination information) is specified and acquired (S22: level determination information acquisition step). If the identified distance is not less than or equal to the predetermined reference distance (S23: No), the danger level of the vehicle 2 is lowered to level 0 by one step (S27: danger level setting step).

  On the other hand, when the distance between the vehicle 2 and the approaching object 9 is equal to or less than a predetermined reference distance (S23: Yes), the main control unit 200 raises the danger level by one level to level 2 (S24). : Security level setting step). Furthermore, the navigation apparatus 204 is requested for date information and position information. When date / time information and position information are acquired from the navigation device 204 in accordance with the processing of FIG. 11 (S25: date / time information acquisition step and position information acquisition step), the main control unit 200 displays the identification information of the host vehicle 2 and the identification information thereof. 2 is generated and associated data is temporarily stored as transmission data (transmission data 2: see FIG. 14) to be transmitted later (S26: external). Send data creation step). On the other hand, the main control unit 200 outputs a control command to cause the corresponding warning output device 205 to output a warning output corresponding to the danger level 2 (see FIG. 13) (warning output step). Then, this process ends.

  When the danger level is raised from level 1 to level 2 in the process of FIG. 7, the process of FIG. 8 is started using this as a trigger.

  In the process of FIG. 8, first, the main control unit 200 outputs a control signal for instructing the camera 202 to shoot, and a captured image (still image data: level determination information / evidence information) captured by the camera 202 that has received the control signal. (S31: Level determination information acquisition step and evidence acquisition step). Then, the approaching object displayed in the obtained captured image is recognized and specified by a well-known pattern matching technique, and the type of approaching object is specified by the pattern matching, and the type is a predetermined alert target type. Determine whether or not. As a result of the determination, if it is not the alert target type (S32: No), the danger level of the vehicle 2 is lowered to level 1 by one step (S36: danger level setting step). In the present embodiment, a person is determined as the alert target type, and a pattern for recognizing a person is stored in the external storage device 212 in advance.

On the other hand, if it is a warning target type (S32: Yes), the main control unit 200 raises the danger level by one level to level 3 (S33: danger level setting step). Furthermore, the navigation apparatus 204 is requested for date information and position information. When date / time information and position information are acquired from the navigation device 204 in accordance with the processing of FIG. 11 (S34: date / time information acquisition step and position information acquisition step), the main control unit 200 displays the identification information of the host vehicle 2 and the identification information of the host vehicle 2 as a risk level. 3 is created and associated data is created in association with the risk level information indicating the occurrence of 3 and the captured image (still image data: level determination information / evidence information), and the transmission data (transmission data 3: 14)) temporarily stored (S35: external transmission data creation means). On the other hand, the main control unit 200 outputs a control command to cause the corresponding warning output device 205 to output a warning output corresponding to the danger level 3 (see FIG. 13) (S35: warning output step). Then, this process ends.

  When the danger level is raised from level 2 to level 3 in the process of FIG. 8, the process of FIG. 9 is started using this as a trigger.

  In the process of FIG. 9, first, the main control unit 200 outputs a control signal instructing the camera 202 to shoot, and a captured image (moving image data: level determination information / evidence information) captured by the camera 202 that has received the control signal. (S41: Level determination information acquisition step and evidence acquisition step). Then, the approaching object, which is the type of alert object displayed in the captured image, is recognized and identified by well-known pattern matching, the action of the approaching object is identified, and the suspicious behavior pattern (precautionary object) is determined in advance. It is determined whether or not it matches (operation). If there is no matching suspicious behavior pattern as a result of the determination (S42: No), the danger level of the vehicle 2 is lowered to level 2 by one step (S48: danger level setting step), and the photographing is finished (S49). . In the present embodiment, for example, wandering around the vehicle is defined as suspicious behavior, and a case where an approaching object that is a warning target type is continuously photographed for a predetermined time or longer is regarded as suspicious behavior. For this reason, timing is started with the start of shooting, and when suspicious behavior is not detected, both the shooting and timing are terminated.

  On the other hand, if the result of determination is that there is a matching suspicious behavior pattern (S42: Yes), the main control unit 200 raises the danger level by one level to level 4 (S43: danger level setting step). Furthermore, the navigation apparatus 204 is requested for date information and position information. Here, date information and position information are acquired from the navigation device 204 in accordance with the processing of FIG. 11 (S44: date information acquisition step and position information acquisition step). Then, when the shooting time started when the shooting starts is a predetermined shooting end time (S45: Yes), the main control unit 200 ends the shooting and the timing (S46). Furthermore, the acquired date / time information and position information and identification information of the host vehicle 2 correspond to the danger level information indicating the occurrence of the danger level 4 and the photographed image (video data: level determination information / evidence information). The attached linking data is created and temporarily stored as transmission data (transmission data 4: see FIG. 14) to be transmitted later (S47: external transmission data creation means). On the other hand, the main control unit 200 outputs a control command to cause the corresponding warning output device 207 to output a warning output corresponding to the danger level 4 (see FIG. 13). Then, this process ends.

  When the danger level is raised from level 3 to level 4 in the process of FIG. 9, the process of FIG. 10 is started using this as a trigger.

  In the process of FIG. 10, first, the main control unit 200 outputs a control signal for instructing recording to the recording device 203, and the recording data (level determination information / evidence information) recorded by the recording device 203 that has received the control signal is output. Obtain (S51: Level determination information acquisition step and evidence acquisition step). Then, it recognizes and extracts a human voice from the obtained recording data, further extracts a keyword included in the voice, and determines whether or not the keyword matches a predetermined suspicious keyword (warning target word). To do. As a result of the determination, if there is no matching suspicious keyword (S52: No), the danger level of the vehicle 2 is lowered to one level (S58: danger level setting step), and the recording is finished (S59). In the present embodiment, keywords relating to theft and destruction such as “stealing”, “destructing”, “escape” and the like are registered in the external storage device 212 in advance as suspicious keywords. For this reason, timing is started with the start of recording, and when the suspicious keyword is not detected, both the recording and the timing are ended.

  On the other hand, as a result of the determination, if there is a matching suspicious keyword (S52: Yes), the main control unit 200 raises the danger level by one level to level 5 (S53: danger level setting step). Furthermore, the navigation apparatus 204 is requested for date information and position information. Here, date and time information and position information are acquired from the navigation device 204 in accordance with the processing of FIG. 11 (S54: date and time information acquisition step and position information acquisition step). Then, when the recording time that has started timing with the start of recording reaches a predetermined recording end time (S55: Yes), the main control unit 200 ends the recording and timing (S56), Further, the acquired date / time information and position information, and identification information of the host vehicle 2 are associated with danger level information indicating the occurrence of danger level 5 and recorded voice (recorded data: level determination information / evidence information). The association data is created and temporarily stored as transmission data (transmission data 5: see FIG. 14) to be transmitted later (S57: external transmission data creation step). On the other hand, the main control unit 200 outputs a control command to cause the corresponding warning output device 206 to output a warning output corresponding to the danger level 5 (see FIG. 13) (S57: warning output step). Then, this process ends.

  As described above, in the present embodiment, the risk levels are determined in stages, and level determination information for determining whether or not each level is associated with each risk level. And the information type of the level determination information of each risk level differs in each level. More specifically, detection of approaching objects, proximity, alert type recognition, and alert action recognition are sequentially determined based on different level determination information, and the risk level increases step by step accordingly. The warning action includes a warning target action and a warning target utterance (warning target word). Finally, the warning level is maximized by recognizing the warning target utterance.

  Further, in the processing of FIGS. 6 to 10, the risk level is set to one level by determining whether or not the current risk level is a new risk level by using the change of the risk level as a trigger. Change over each time. As a result of performing the risk level determination based on the level determination information corresponding to the next level of risk level, if it is determined that the level is the corresponding risk level, the process proceeds to a level of risk determination that is one level higher than the current level of risk. If it is determined that the danger level is not reached, the process proceeds to a danger level judgment that is one level lower than the current danger level. Each time the danger level is switched, a warning output corresponding to the switched danger level is executed. Further, switching of the danger level is defined as a trigger for starting acquisition of level determination information corresponding to the danger level of the switching destination.

  Further, according to the processing of FIGS. 6 to 10, when the danger level is 1 or more, the user who has the portable key 90 corresponding to the vehicle 2 approaches and the key 90 is detected. However, since an approaching object that may be a suspicious object has been detected, the processing in FIGS. 7 to 10 is continued without changing the current danger level, and warning output and evidence collection processing are performed. .

  In the present embodiment, the moving image is shot simultaneously with the recording in FIG. 10, and the shooting is ended at the end of the recording. The recorded moving image data is also transmitted data (transmission data 5) together with the recorded recording data. : Refer to FIG. 14).

  In addition, according to the processes of FIGS. 6 to 10, the level determination information acquired for determining the risk level is transmitted to the management device 4 as evidence information. It is created as transmission data to the management apparatus 4 only when it is above a predetermined reference level (here, level 3 or more), and is transmitted to the management apparatus 4 by a subsequent transmission process (see FIG. 12) and stored in the storage device 44. Memorized and accumulated.

  Further, the still image acquired in FIG. 8 may be an image captured from a moving image captured by the camera 202, and the suspicious behavior detection in FIG. The structure to perform may be sufficient. Furthermore, recording by the recording function 203 provided in the camera 202 may be started simultaneously with shooting, and the suspicious keyword detection in FIG. 10 may be simultaneously performed. In addition, when an approaching object of the alert target type is detected, a captured still image is displayed, and when a suspicious behavior of the approaching object is detected, a captured video is further displayed, and a suspicious object of the approaching object is further displayed. When a keyword is detected, the recorded voice can be used as evidence information.

  Each transmission data created in the processes of FIGS. 6 to 10 is transmitted by the process shown in FIG. That is, when the transmission data in which the date / time information and the position information are associated (linked) is completed in the processing of FIGS. 6 to 10 and the transmission preparation is completed (S111), the main control unit 200 The information is transmitted from the communication device 210 to the management device 4 via the communication means 5 (S112: information transmission means), and also to the storage device (vehicle-side storage unit) 211 of the own vehicle 2 for browsing within the own vehicle 2. Store / accumulate (S113: Evidence storage step (vehicle-side evidence storage means)).

  Transmission data transmitted from the vehicle 2 by the processing of FIG. 11 is received by the management device 4 via the communication means 5. As shown in FIG. 4, the management device 4 has an operation unit 45 such as a mouse or a keyboard, an audio output unit 41 such as a speaker, a display unit 42 such as a display, and the communication means (external). A communication unit (communication interface) 43 for connecting to the Internet or the like forming a network (5) and an external storage device 44 composed of, for example, a hard disk drive (HDD).

  As shown in FIG. 15, when the communication unit 43 receives the transmission data from the vehicle 2 (S401: information reception step), the control unit 40 temporarily stores the transmission data (acquired information) in a buffer (S402). Further, as shown in FIG. 16, the temporarily stored transmission data is classified for each predetermined date and time condition based on the associated date and time information (S403), and the classified transmission data is stored in the storage device (external (S404: acquisition information storage step (evidence storage step if evidence information is included)) Further, the temporarily stored transmission data is stored in advance based on the associated position information. It classifies for each determined position condition (S403), and stores the classified transmission data in the storage device 44 (S404: acquisition information storage step (if evidence information is included) CONFORMING storage step). The control unit 40 by the processing of FIG. 15 functions as an information receiving means and the external storage unit.

  For example, as shown in FIG. 17, transmission data (position information, vehicle identification information, danger level information, and evidence information corresponding to the level when the danger level is 3 or higher) is stored for each date, As shown in FIG. 18, transmission data (date information, vehicle identification information, danger level information, and evidence information corresponding to a level when the danger level is 3 or higher) is stored in a predetermined area unit. Note that the data (S113) stored in the storage device 211 of the vehicle 2 described above is also classified and stored for each predetermined date and time condition and for each predetermined position condition. And

  Data such as evidence information stored in the management device 4 in this way can be browsed from a predetermined browsing terminal device. As shown in FIG. 5, the browsing terminal device 3 has an operation unit 35 such as a mouse and a keyboard, an audio output unit 31 such as a speaker, a display unit 32 such as a display, and the communication unit 5. And a communication unit (communication interface) 33 for connecting to the external storage device 34 and an external storage device 34 composed of, for example, a hard disk drive (HDD).

  As shown in FIG. 19, the control unit 30 of the browsing terminal device 3 determines the browsing content by performing a predetermined browsing content determination operation on the operation unit 35 (S301), and is determined in accordance with the determination. A browsing request signal for requesting the browsing content is transmitted from the communication unit 33 to the management device 4 via the communication unit 5 (302: Evidence requesting step). Specifically, since the transmission information from the vehicle is stored for each date and for each area, the management device 4 requests the date specified by the browsing content determination operation and the evidence information for the area. A browsing request signal is transmitted. On the other hand, as shown in FIG. 20, when receiving the browsing request signal (S411: evidence request receiving step), the control unit 40 of the management device 4 reads information corresponding to the request from the storage device 44 and temporarily stores it in the buffer. Store (S412). Then, as shown in FIG. 21, this information is transmitted to the viewing terminal device 3 that is the request source (S413: request evidence transmission step). As shown in FIG. 22, when receiving this (S303: request evidence receiving step), the control unit 30 of the browsing terminal apparatus 3 displays the received information on the screen so that it can be browsed (evidence browsing step). ). The control unit 30 functions as evidence requesting means, evidence browsing means, and requested evidence receiving means by the processing of FIG. 19, and the control unit 40 functions as evidence request receiving means and requested evidence transmission means by the processing of FIG.

  25 and 26 are examples of the browsing display. FIG. 25 is a screen display example of a list of transmission information from vehicles stored and accumulated for each date in the storage device 44 of the management device 4. Here, the browsing terminal device 3 receives the information transmitted on the date specified by the browsing content determination operation, displays the received history as a list, and uses the operation unit 35 for displaying the evidence information displayed as a list. By performing the selection operation, evidence information corresponding to the evidence information display can be reproduced and output (for example, output of a still image, a moving image, or sound) by the display unit 32 or the audio output unit 31 and viewed. FIG. 26 is a screen display example of a list of transmission information from vehicles stored and accumulated for each area in the storage device 44 of the management device 4. Here, when the browsing terminal device 3 receives the information transmitted from the area designated by the browsing content determination operation, the area is displayed as a map on the screen of the display unit 32, and the transmission point of each received information is displayed. it's shown. Furthermore, here, the display of each of these transmission points is a display form in which the danger level can be recognized, and the evidence information display is performed by performing a selection operation by the operation unit 35 on the display of each of these transmission points. Evidence information corresponding to can be reproduced and output (for example, output of still images, moving images, and sounds) by the display unit 32 and the audio output unit 31 and viewed. Also, the transmission points displayed in FIG. 26 are only the transmission points where the evidence information is collected, and the transmission points at the danger level where the evidence information was not collected are not displayed.

  On the other hand, in the vehicle 2, transmission data such as evidence information transmitted to the management device 4 as transmission data by itself is stored and accumulated in its own storage device 211, and this is stored in the display device 213 of the own vehicle 2. It is possible to browse. As shown in FIG. 23, the main control unit 200 of the vehicle 2 determines the browsing content by performing a predetermined browsing content determination operation on the operation device 214 (S201), and is determined along with the determination. The browsing information indicating the browsing content is read from the storage device 211 (S202), and this is displayed on the display device 213 on the screen (S203) in the same manner as in FIG. 25 and FIG. The main control unit 200 functions as evidence browsing means by the processing of FIG.

  Further, in the management device 4, it is possible to browse information such as evidence information stored and accumulated in the storage device 44 on the display unit 42 (evidence browsing means). As shown in FIG. 24, the control unit 40 of the management device 4 determines the browsing content by performing a predetermined browsing content determination operation on the operation unit 45 (S421), and is determined along with the determination. The browsing information indicating the browsing content is read from the storage device 44 (S422), and this is displayed on the display unit 42 as in the case of FIG. 25 and FIG. 26 (S423) to enable browsing (evidence browsing means). The main control unit 200 functions as evidence browsing means by the processing of FIG.

  Although one embodiment of the present invention has been described above, this is merely an example, and the present invention is not limited to this, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

  In the above embodiment, the risk level is set on the vehicle 2 side. However, in order to reduce the processing load on the vehicle 2 side, the management level may be set on the management device 4 side. In this case, on the vehicle 2 side, the main control unit 200 detects the detection result of the approaching object detection device 201 and the acquisition information of the evidence acquisition devices (level determination information acquisition devices) 202 and 203 via the communication unit 5 by the communication device 214. Is transmitted to the management device 4, while the control commands for the warning output devices 205 to 208 and the evidence acquisition devices 202 and 203 transmitted from the management device 4 are received, and warning output and evidence acquisition are performed based on the received control commands. Are configured as warning output control means and evidence acquisition control means. On the management device 4 side, the control unit 40 receives the detection result of the approaching object detection device 201 of the vehicle 2 and the acquisition information of the evidence acquisition devices 202 and 203 through the communication unit 5 by the communication unit 43, and the danger level. It is configured to make a determination and transmit a control command to the warning output devices 205 to 208 of the vehicle 2 and the evidence acquisition devices 202 and 203 based on the determination result to the vehicle 2.

  Specifically, the processes of FIGS. 27 to 40 are executed on the vehicle 2 side and the management apparatus 4 side.

  FIG. 27 is a process of transmitting the risk level determination information (level determination information) executed on the vehicle 2 side, and is a process performed when the risk level is zero.

  First, the main control unit 200 causes the approaching object detection unit 9 to start detecting the approaching object 9 approaching the vehicle 2 as in S11 of FIG. 6 (S1011: approaching object detection step). Here, a detection wave is output to each sonar 201, and the presence / absence of reception of the reflected wave and the time from transmission to reception are acquired as detection information (approaching object detection information) of the approaching object 9 (S1012: Level judgment information acquisition step). Next, if there is an approaching object 9 to the vehicle 2, non-suspicious object determination information for determining whether the approaching object 9 is a non-suspicious object that is safe with respect to the vehicle 2 is determined. Acquisition starts (S1013: level determination information acquisition step). Here, the main control unit 200 detects the corresponding portable key 90 around the vehicle 2. Specifically, the main control unit 200 causes the control unit (key ID verification unit) 290 of the smart entry system 209 to transmit a key search radio wave from the transmission unit 291, and the reception unit 292 receives the response signal reception result (reception) And the reception result of the response signal (corresponding portable key detection information) is acquired as non-suspicious object determination information (S1014: level determination information acquisition step). Then, the navigation device 204 and the timing device 212 are requested for date information and position information when the acquired information (approaching object detection information and suspicious object determination information) is acquired (S1015), and the navigation device 204 and the timing device. The requested date / time information and position information are acquired by the processing of FIG. 11 executed by 212 (date / time information acquisition step and position information acquisition step). Then, transmission data is created by associating the acquired date and time information and position information and the identification information of the vehicle 2 with the acquired information (external transmission data creation step). The created transmission data is transmitted to the management apparatus 4 according to the process of FIG. 12 already described (information transmission step), and is temporarily stored in the buffer by the process of FIG. 15 (information reception step).

  As the transmission data is received (information receiving step), as shown in FIG. 28, the main control unit 40 of the management device 4 detects the detection information and non-detection of the approaching object 9 from the transmission data temporarily stored in the buffer. When the suspicious object determination information is acquired (S4011), based on these, it is determined whether or not the approaching object 9 is detected and whether or not the approaching object 9 is a non-suspicious object that is safe with respect to the vehicle 2. (S4012, S4013: danger level determination step). When it is determined that there is no approaching object 9 (S4012: No), the main control unit 40 sets the danger level of the vehicle 2 to level zero (S4024: danger level setting step), and determines that the danger level is level zero. Level notification data for notification to the vehicle is generated, and is transmitted from the communication unit 43 to the vehicle 2 that is the transmission source of the acquisition information via the communication unit 5 (S4025: danger level notification step and warning command transmission step) ), This process is terminated. The level notification data created here includes an output command to the warning output devices 205 to 208, but the output command here is not output.

  Even when it is determined that there is an approaching object 9 (S4012: Yes) and the approaching object 9 is determined to be a suspicious object that is safe with respect to the vehicle 2 (S4013: Yes), the main control unit 40 The danger level of the vehicle 2 is set to level zero (S4014: danger level setting step), level notification data for notifying the vehicle 2 that the danger level is level zero is created, and this is transmitted from the communication unit 43 to the communication means 5. Then, the information is transmitted to the vehicle 2 that is the transmission source of the acquisition information (S4015: danger level notification step and welcome command transmission step), and this process is terminated. However, the output command to the warning output devices 205 to 208 included in the level notification data created here is the output command of the warning output 1 shown in FIG.

  On the other hand, if it is determined that there is an approaching object 9 (S4012: Yes) and it is determined that the approaching object 9 is not a suspicious object that is safe with respect to the vehicle 2 (S4013: No), the main control unit 40 The danger level of the vehicle 2 is set to level 1 (S4016: danger level setting step), level notification data for notifying the vehicle 2 that the danger level is level 1 is created, and this is transmitted from the communication unit 43 to the communication means 5. To the vehicle 2 that is the transmission source of the acquired information (S4017: danger level notification step and warning command transmission step). However, the output command to the warning output devices 205 to 208 included in the level notification data created here is the output command of the warning output 1 shown in FIG.

  Subsequently, the main control unit 40 identifies the distance (distance between approaching objects) between the vehicle 2 and the approaching object 9 based on the acquired detection information of the approaching object 9 (S4018), and the identified distance. Is less than or equal to a predetermined reference distance (risk level determination step). When the distance is equal to or less than the reference distance (S4019: No), the danger level of the vehicle 2 is lowered by one step to the level 0 (S4024: danger level setting step), and the vehicle 2 is notified that the danger level is zero. Level notification data is created (S4025: danger level notification step and warning command transmission step), and the process ends. However, the output command to the warning output devices 205 to 208 included in the level notification data created here is no output.

  On the other hand, when the specified distance is equal to or less than a predetermined reference distance (S4019: Yes), the main control unit 200 raises the danger level by one level to level 2 (S4020: danger level setting step). Then, level notification data for notifying the vehicle 2 that the danger level is level 2 is created, and this is transmitted from the communication unit 43 to the vehicle 2 that is the transmission source of the acquisition information via the communication means 5 ( S4021: danger level notification step and warning command transmission step). However, the output command to the warning output devices 205 to 208 included in the level notification data created here is the output command of the warning output 2 shown in FIG.

  And after transmitting the level notification data of the danger level 2, the date and time information and the position information associated with the acquired information, the identification information of the vehicle 2, and the danger level information indicating the occurrence of the set danger level Is created and stored in the storage device 44 (S4023). However, the storage data is classified for each predetermined date and time condition based on the date and time information (S4022: acquisition information storage step), stored in the storage device 44, and further based on the position information. They are classified for each predetermined position condition (S4022) and stored in the storage device 44 (S4023: acquisition information storage step). Then, this process ends. Note that information when the danger level is less than level 2 may be stored in the management apparatus 4, but is not stored in the management apparatus 4 in this process.

  When receiving the level notification data (S2001, S2011, S2021), the main control unit 200 of the vehicle 2 executes the processes of FIGS.

  That is, when the received level notification data is a danger level 0 notification, as shown in FIG. 29, the main control unit 200 first obtains a greeting output command included in the data, and the command content indicates a greeting output. If it is supposed to be performed (S2002: Yes), the warning output 1 of FIG. 13 is implemented as a greeting output (S2003: greeting output step (also called a warning output step)), and if the greeting output is not performed ( S2002: No), no greeting output is performed. Then, the timing for executing the process of FIG. 27 is set in the same manner as S20 of FIG. 6 (S2004).

  When the received level notification data is a danger level 1 notification, as shown in FIG. 30, the main control unit 200 first acquires a warning output command included in the data, and the content of the command outputs a warning. If it is set (S2012: Yes), the warning output 1 of FIG. 13 is implemented as a warning output (S2013: warning output step), and if warning output is not performed (S2012: No), the warning output is Not performed. Then, the timing for executing the process of FIG. 27 is set in the same manner as S20 of FIG. 6 (S2014).

  When the received level notification data is a danger level 2 notification, as shown in FIG. 31, the main control unit 200 first acquires a warning output command included in the data, and the content of the command outputs a warning. If it is set (S2022: Yes), the warning output 2 of FIG. 13 is implemented as a warning output (S2023: warning output step), and if warning output is not performed (S2022: No), the warning output is Not performed. Then, the timing for executing the processing of FIG. 32 is set (S2024). This timing is set at a timing at which the time interval is shorter than the timing at which the processing of FIG. 27 is executed. Here, the process of FIG. 32 is executed immediately.

  FIG. 32 is a process of transmitting danger level determination information (level determination information) executed on the vehicle 2 side, and is a process performed when the danger level is level 2.

  First, the main control unit 200 instructs the camera 202 to shoot a still image in the same manner as S41 in FIG. 8, and obtains a captured image (still image: level determination information) captured by the camera 202 (S1031; level determination). Information acquisition step). Then, the navigation device 204 and the timing device 212 are requested for date information and position information when the captured image is acquired (S1032), and requested by the processing of FIG. 11 executed by the navigation device 204 and the timing device 212. Date and time information and position information are acquired (date and time information acquisition step and position information acquisition step). Then, transmission data (acquisition information) is created by associating the acquired date / time information and position information and the identification information of the vehicle 2 with the captured image (S1033). The created transmission data is transmitted to the management apparatus 4 according to the processing of FIG. 12 already described (information transmission step), and is temporarily stored in the buffer by the processing of FIG. Further, the created transmission data is stored and accumulated in the storage device 211 of the host vehicle 2 for browsing in the host vehicle 2 (S1034: acquisition information storage step and evidence storage step).

  As the transmission data is received (information reception step), as shown in FIG. 33, the main control unit 40 of the management device 4 extracts the captured image (still image) from the transmission data temporarily stored in the buffer. When acquired (S4031), the type of approaching object displayed in the acquired captured image is specified in the same manner as in the processing of FIG. 8, and whether or not the type is a predetermined alert target type (here, a person). (Risk level determination step). As a result of the determination, if it is not the alert target type (S4032: No), the danger level of the vehicle 2 is lowered to level 1 by one step (S4038: danger level setting step). Then, level notification data for notifying the vehicle 2 that the danger level is level 1 is created, and this is transmitted from the communication unit 43 via the communication means 5 to the vehicle 2 that is the transmission source of the captured image. (S4039 :: danger level notification step and warning command transmission step), the process is terminated. The level notification data created here includes an output command to the warning output devices 205 to 208, but the output command here is not output.

  On the other hand, if it is a warning target type (here, person) (S4032: Yes), the main control unit 200 raises the danger level by one level to level 3 (S4033). Then, the main control unit 200 creates level notification data for notifying the vehicle 2 that the danger level is level 3, and transmits the level notification data from the communication unit 43 via the communication unit 5. (S4034: danger level notification step and warning command transmission step). The output command to the warning output devices 205 to 208 included in the level notification data created here is the output command of the warning output 3 shown in FIG.

  Then, after transmitting the level notification data of the danger level 3, the date and time information and the position information associated with the captured image, the identification information of the vehicle 2, and the danger level information indicating the occurrence of the danger level 3 are associated with each other. The attached storage data is created and stored in the storage device 44 (S4037: acquisition information storage step). However, the photographing information is classified for each predetermined date and time condition based on the date and time information (S4036), stored in the storage device 44, and further, a predetermined position based on the position information. The data is classified for each condition (S4036) and stored in the storage device 44. Then, this process ends. In the present embodiment, evidence information is not stored even at the danger level 3.

  When the main control unit 200 of the vehicle 2 receives the level notification data (S2031), it executes the process of FIG. That is, when the received level notification data is a notification of danger level 3, as shown in FIG. 34, the main control unit 200 first acquires a warning output command included in the data, and the content of the command is a warning output. 13 is executed (S2032: Yes), the warning output 3 of FIG. 13 is executed as a warning output (S2033: warning output step). If the warning output is not performed (S2032: No), the warning is output. Does not output. Then, the timing for executing the process of FIG. 35 is set (S2034). This timing is set at a timing at which the time interval is shorter than the timing at which the processing of FIG. 27 is executed. Here, the process of FIG. 35 is immediately executed.

  FIG. 35 is a process of transmitting danger level determination information (level determination information) executed on the vehicle 2 side, and is a process performed when the danger level is level 3.

  First, the main control unit 200 instructs the camera 202 to shoot a moving image, similarly to S51 of FIG. 9, and obtains a captured image (moving image: level determination information and evidence information) captured by the camera 202 (S1041). Then, the navigation device 204 and the timing device 212 are requested for date information and position information when the captured image is acquired (S1032), and requested by the processing of FIG. 11 executed by the navigation device 204 and the timing device 212. Date and time information and position information are acquired (date and time information acquisition step and position information acquisition step). The main control unit 200 ends the shooting and time measurement (S1044) when the shooting time started when the shooting has started reaches a predetermined shooting end time (S1043: Yes), and further acquired. Transmission data (acquisition information) in which date / time information and position information and identification information of the host vehicle 2 are associated with captured image data (moving image: level determination information / evidence information) is created (S1045). The created transmission data is transmitted to the management apparatus 4 according to the processing of FIG. 12 already described (information transmission step), and is temporarily stored in the buffer by the processing of FIG. Further, the created transmission data is stored and stored in the storage device 211 of the host vehicle 2 for browsing within the host vehicle 2 (S1046: acquisition information storage step and evidence storage step).

  As the transmission data is received (information receiving step), as shown in FIG. 36, the main control unit 40 of the management device 4 uses the captured image (moving image: evidence information) from the transmission data temporarily stored in the buffer. ) (S4041: level determination information acquisition step / evidence storage step), an approaching object that is a type of a warning object displayed in the captured image is recognized and specified by known pattern matching, and the operation of the approaching object is specified. Then, it is determined whether or not the operation matches a predetermined suspicious behavior pattern (warning target operation) (risk level determination step). As a result of the determination, if there is no matching suspicious behavior pattern (S4042: No), the danger level of the vehicle 2 is lowered to level 2 (S4048: danger level setting step), and the danger level is level 2. Level notification data for notifying the vehicle 2 is generated, and this is transmitted from the communication unit 43 to the vehicle 2 that is the transmission source of the captured image via the communication unit 5 (S4049: danger level notification step and Warning command transmission step), this process is terminated. The level notification data created here includes an output command to the warning output devices 205 to 208, but the output command here is not output.

  On the other hand, if there is a matching suspicious behavior pattern as a result of the determination (S4042: Yes), the main control unit 200 raises the danger level by one level to level 4 (S4043: danger level setting step). Then, the main control unit 200 creates level notification data for notifying the vehicle 2 that the danger level is level 4, and transmits the level notification data from the communication unit 43 via the communication unit 5 to the transmission source of the captured image. (S4044: danger level notification step and warning command transmission step). The output command to the warning output devices 205 to 208 included in the level notification data created here is the output command of the warning output 4 shown in FIG.

  Then, after transmitting the level notification data of the danger level 4, the above-mentioned photographed image (evidence information), date and time information and position information associated therewith, identification information of the vehicle 2, and occurrence of the danger level 4 are generated. Data for storage in association with the danger level information to be shown is created and stored / stored in the storage device 44 (S4047: acquisition information storage means and evidence information storage means). However, the data for storage is classified for each predetermined date / time condition based on the date / time information (S4046), stored in the storage device 44, and further predetermined based on the position information. They are classified for each position condition (S4046) and stored in the storage device 44. Then, this process ends.

  When the main control unit 200 of the vehicle 2 receives the level notification data (S2041), it executes the process of FIG. That is, when the received level notification data is a notification of danger level 4, as shown in FIG. 37, the main control unit 200 first acquires a warning output command included in the data, and the content of the command is a warning output. (S2042: Yes), the warning output 4 of FIG. 13 is executed as a warning output (S2043: warning output step). If the warning output is not performed (S2042: No), the warning is output. Does not output. Then, the timing for executing the process of FIG. 38 is set (S2044). This timing is set at a timing at which the time interval is shorter than the timing at which the processing of FIG. 27 is executed. Here, the processing of FIG. 38 is immediately executed.

  FIG. 38 is a process of transmitting danger level determination information (level determination information) executed on the vehicle 2 side, and is a process performed when the danger level is level 4 or 5.

  First, the main control unit 200 instructs the recording device 203 to record in the same manner as S61 in FIG. 10, and obtains recording data (level determination information and evidence information) recorded by the recording device 203 (S1051: level determination). Information acquisition step and evidence acquisition step). Then, the navigation device 204 and the timing device 212 are requested for date information and position information when the captured image is acquired (S1052), and requested by the processing of FIG. 11 executed by the navigation device 204 and the timing device 212. Date and time information and position information are acquired (date and time information acquisition step and position information acquisition step). Then, the main control unit 200 ends the recording and time counting (S1054) when the recording time started when the recording starts becomes a predetermined recording end time (S1053: Yes), and further acquired. Transmission data in which the date / time information and the position information and the identification information of the host vehicle 2 are associated with the recorded recording data (level determination information and evidence information) is created (S1055). The created transmission data is transmitted to the management apparatus 4 according to the processing of FIG. 12 already described (information transmission step), and is temporarily stored in the buffer by the processing of FIG. Further, the created transmission data is stored and accumulated in the storage device 211 of the own vehicle 2 for browsing in the own vehicle 2 (S1056: acquisition information storage step and evidence storage step).

  As the transmission data is received (information reception step), the main control unit 40 of the management apparatus 4 acquires the recording data from the transmission data temporarily stored in the buffer as shown in FIG. 39 (S4051). ), Recognizes and extracts a human voice from the recorded data, further extracts a keyword included in the voice, and determines whether or not the keyword matches a predetermined suspicious keyword (warning target word) ( Security level judgment step). As a result of the determination, if there is no matching suspicious keyword (S4052: No), the danger level of the vehicle 2 is lowered to level 3 (S4058: danger level setting step), and the danger level is level 3. Is generated from the communication unit 43 via the communication means 5 to the vehicle 2 that is the transmission source of the recording data (S4059), and the process is terminated. . The level notification data created here includes an output command to the warning output devices 205 to 208, but the output command here is not output.

  On the other hand, as a result of the determination, if there is a matching suspicious keyword (S4052: Yes), the main control unit 200 raises the danger level by one level to level 5 (S4053: danger level setting step). Then, the main control unit 200 creates level notification data for notifying the vehicle 2 that the danger level is level 5, and transmits the level notification data from the communication unit 43 via the communication unit 5 to the transmission source of the recording data. To the vehicle 2 (S4054). The output command to the warning output devices 205 to 208 included in the level notification data created here is the output command of the warning output 5 shown in FIG.

  And after transmitting the level notification data of the danger level 5, the recording data (evidence information), date and time information and position information associated therewith, the identification information of the vehicle 2, and the occurrence of the danger level 5 are generated. Data for storage in association with the danger level information shown is created and stored in the storage device 44 (S4057). However, the storage data is classified for each predetermined date and time condition based on the date and time information (S4056), stored in the storage device 44, and further determined in advance based on the position information. They are classified for each position condition (S4056) and stored in the storage device 44. Then, this process ends.

  When receiving the level notification data (S2041), the main control unit 200 of the vehicle 2 executes the process of FIG. That is, if the received level notification data is a notification of danger level 5, as shown in FIG. 40, the main control unit 200 causes the warning output 5 of FIG. 13 to be executed as a warning output (S2042), and then FIG. The timing for executing the process is set (S2043). This timing is set at a timing at which the time interval is shorter than the timing at which the processing of FIG. 27 is executed. Here, the processing of FIG. 38 is immediately executed.

  In this embodiment, the vehicle 2 is provided with an approaching object detection device 201, warning output devices 205 to 208, and evidence acquisition device / level determination information acquisition devices 202 and 203, and the main control unit 200 communicates with the vehicle 2. The device 210 transmits the detection result of the approaching object detection device 201 and the acquisition information of the evidence acquisition device / level determination information acquisition devices 202 and 203 to the management device 4 provided outside the vehicle 2 via the communication means 5. On the other hand (information transmission means), control commands for the warning output devices 205 to 208 and the evidence acquisition device / level determination information acquisition devices 202 and 203 are received from the management device 4 (control command reception means). Based on the received control command, the main control unit 200 causes the warning output devices 205 to 208 and the evidence acquisition device / level determination information acquisition devices 202 and 203 to execute warning output and acquisition of evidence information (warning control means). And evidence acquisition control means). On the other hand, in the external management device 4, the control unit 40 receives the detection result and the acquired information by the communication unit 43 via the communication unit 5 (information receiving unit), and sets the risk level based on the received information. Set (danger level setting means) and control commands (warning command and evidence acquisition command) to the warning output devices 205 to 208 and the evidence acquisition device / level determination information acquisition devices 202 and 203 of the vehicle 2 according to the set level. Then, the communication unit 43 causes the vehicle 2 to transmit via the communication unit 5 (control command transmission unit). On the other hand, the management device 4 has a storage device (external storage unit) 44, and the control unit 40 stores information (such as received evidence information of each vehicle 2) transmitted from the vehicle 2 side. accumulate. Further, as in the other embodiments already described, the storage contents (evidence information, etc.) of the storage device (external storage unit) 44 can be browsed in the management device 4 and the terminal device 3, and the own storage device 211 of the vehicle 2 can be viewed. The stored contents (evidence information, etc.) can be browsed.

DESCRIPTION OF SYMBOLS 1 Vehicle crime prevention system 2 Vehicle 200 Main control part 201 Approaching object detection apparatus (sonar)
202 Evidence acquisition device (camera)
203 Evidence acquisition device (recorder)
204 Car navigation device 240 Position detector 205-208 Warning output device (head lamp, fog lamp, indoor lighting, buzzer)
209 Key communication system (key detection means)
210 Communication device 211 Storage device (vehicle-side storage unit)
00 Vehicle operation device 3 Browsing terminal device (terminal device)
30 control unit 34 storage device (external storage unit)
4 External management device (external device)
40 control unit 44 storage device (external storage unit)
5 Internet (communication means)

Claims (24)

An approaching object detection step in which an approaching object detection means detects an approaching object approaching the vehicle;
A level determination information acquisition step in which a level determination information acquisition unit acquires level determination information that is a basis for determining a danger level for the detected approaching object;
A danger level setting step in which the danger level setting means sets the danger level of the vehicle based on the acquired level determination information;
A warning output step in which a warning control means causes a predetermined warning output means to execute warning output by a warning technique corresponding to a set danger level; and
Evidence acquisition step in which the evidence acquisition control means acquires the evidence information of the type corresponding to the set danger level in a predetermined evidence acquisition means;
Have a, in the risk level setting step, said to trigger said security level is set to a new level by the risk level setting means, the current security level at that new level following the high risk level In the form of determining whether or not there is a risk level, the risk level is switched and set step by step, and if the current risk level is determined to be the next higher risk level than the new level, Then, the next level determination is performed at shorter time intervals,
In the evidence acquisition step, the vehicle crime prevention method is characterized in that the evidence acquisition means acquires the evidence information having a larger data amount as the danger level becomes higher . In the danger level setting step, when the danger level setting means determines that the danger level is equal to or higher than a predetermined reference level, the danger level is set to the next highest danger level after the danger level. The vehicle crime prevention method according to claim 1, wherein the level determination of whether or not there is is performed after a predetermined period shorter than the level determination of other levels . In the danger level setting step, when the danger level setting means determines that the danger level is equal to or lower than a predetermined reference level, the danger level is the next highest danger level after the danger level. The vehicle crime prevention method according to claim 1 or 2 , wherein the level determination as to whether or not there is is performed after a predetermined period longer than the level determination of other levels. The risk levels are determined in stages, and level determination information for determining whether or not each level is associated with each risk level is associated with the level determination information corresponding to each risk level. The vehicle crime prevention method according to any one of claims 1 to 3, wherein information types are different from each other.   The danger levels are determined in stages, and warning methods of warning outputs output at the respective levels are associated with the respective danger levels, and the warning methods corresponding to the respective danger levels are different from each other. The vehicle crime prevention method according to any one of claims 1 to 4. The vehicle crime prevention method according to any one of claims 1 to 5 , wherein in the evidence acquisition step, the level determination information acquired by the level determination information acquisition means is acquired as the evidence information.   The vehicle crime prevention according to any one of claims 1 to 6, further comprising an evidence storage step in which evidence storage means stores and stores the evidence information acquired in the evidence acquisition step in a predetermined evidence storage unit. Method.   8. The vehicle crime prevention method according to claim 7, wherein, in the evidence storage step, the evidence storage means stores evidence information corresponding to the danger level when the danger level exceeds a predetermined warning level. A date and time information acquisition step of acquiring date and time information by the date and time information acquisition means;
In the evidence storage step, when acquiring the evidence information in the evidence acquisition step, the acquisition date and time information of the evidence information is acquired in the date and time information acquisition step, and this is associated with the acquired evidence information. The vehicle crime prevention method according to claim 7 or 8, wherein the evidence storage means stores the evidence in the evidence storage unit.   In the evidence storage step, the evidence storage means classifies and stores the evidence information acquired in the evidence acquisition step according to a predetermined date / time condition based on acquisition date / time information of the evidence information. Item 10. A vehicle crime prevention method according to Item 9. A position information acquisition step of acquiring position information indicating the current position of the vehicle by position information acquisition means;
In the evidence storage step, when acquiring the evidence information in the evidence acquisition step, acquire the position information of the vehicle in the position information acquisition step, and in correspondence with the acquired evidence information, The vehicle crime prevention method according to any one of claims 7 to 10, wherein the evidence storage means stores the evidence storage unit.   In the evidence storage step, the evidence storage means classifies and stores the evidence information acquired by the evidence acquisition means for each predetermined position condition based on position information corresponding to the evidence information. Item 12. The vehicle crime prevention method according to Item 11.   In the vehicle, the approaching object detection means, the warning output means, the evidence acquisition means, the level determination information acquisition means, the danger level setting means, the warning control means, and the evidence acquisition control means, A vehicle-side storage unit that forms the evidence storage unit, and a vehicle-side evidence storage unit that forms the evidence storage unit. The vehicle-side evidence storage unit stores the evidence information about the vehicle on the vehicle side. The vehicle crime prevention method according to any one of claims 7 to 12, wherein the vehicle crime prevention method is stored and accumulated in a storage unit. The vehicle has the approaching object detection means, the warning output means, the evidence acquisition means, the level determination information acquisition means, the danger level setting means, the warning control means, and the evidence acquisition control means. And further provided with an information transmission means for transmitting the evidence information acquired by the evidence acquisition means to an external device outside the vehicle via a communication means,
The external device includes an information receiving unit that receives the evidence information transmitted from a plurality of different vehicles, an external storage unit that forms the evidence storage unit, and an external storage unit that forms the evidence storage unit. 14. The vehicle crime prevention method according to claim 7, wherein the external storage means stores and stores the received evidence information of each vehicle in the external storage unit. The vehicle is provided with the approaching object detection means, the warning output means, the evidence acquisition means, and the level determination information acquisition means, and further, an external device provided outside the vehicle includes the Information transmission means for transmitting the detection result of the approaching object detection means and the acquisition information of the level determination information acquisition means via the communication means, and the control command reception means for receiving control commands for the warning output means and the evidence acquisition means And, based on the received control command, the warning output means and the evidence acquisition means are provided with the warning control means and the evidence acquisition control means that execute the acquisition of the warning output and the evidence information,
In the external device, information receiving means for receiving the detection result and the acquired information, the risk level setting means, an external storage part forming the evidence storage part, an external storage means forming the evidence storage means, The external storage means stores and stores the received evidence information of each vehicle in the external storage unit, and further, the external device is based on information received by the information receiving means. Control command transmission means for transmitting a control command for the warning output means and the evidence acquisition means to the vehicle that is the transmission source of the received information via the communication means according to the danger level set in the danger level setting means. The vehicle crime prevention method according to any one of claims 7 to 13, wherein the vehicle crime prevention method is provided.   The vehicle crime prevention method according to any one of claims 7 to 15, further comprising an evidence browsing step of browsing the evidence information stored and accumulated in the evidence storage unit by evidence browsing means. Comprising the requirements of claim 14 or claim 15,
The terminal device different from the external device includes the evidence browsing means, and evidence request means for requesting the external device to distribute the evidence information stored and stored in the external storage unit via the communication means. A request evidence receiving means for receiving the evidence information as a reply to the request via a communication means, and the received evidence information can be viewed on the terminal device by the evidence browsing means,
The external device includes an evidence request receiving unit that receives the request from the terminal device via a communication unit, and the evidence information corresponding to the received request is transmitted to the requesting terminal device via the communication unit. The vehicle crime prevention method according to claim 16, further comprising request evidence transmission means for transmitting.   16. The requirements according to claim 14 or claim 15, wherein the external device is provided with the evidence browsing means, and the evidence information stored and accumulated in the external storage unit by the evidence browsing means is stored in the external device. The vehicle crime prevention method according to claim 16 or 17, wherein browsing is possible.   14. The vehicle according to claim 13, wherein the evidence browsing means is provided in the vehicle, and the evidence information relating to the vehicle stored and accumulated in the vehicle-side storage unit by the evidence browsing means is browsed by the vehicle. The vehicle crime prevention method according to any one of claims 16 to 18, which is enabled. The level determination information acquisition means includes an approaching object distance specifying means for specifying an approaching object distance between the approaching object detected by the approaching object detection means and the vehicle, and the specified approaching object distance Is acquired as the level determination information,
The vehicle crime prevention method according to any one of claims 1 to 19, wherein the danger level setting means increases the danger level by one step when the distance between the approaching objects falls below a predetermined reference distance. The level determination information acquisition means has a photographing means for photographing the periphery of the vehicle, acquires image data of a photographed photographed image as the level determination information,
The danger level setting means specifies an approaching object displayed in the captured image, further specifies a type of the approaching object, and if the type is a predetermined alert target type, sets the danger level. The vehicle crime prevention method according to any one of claims 1 to 20, wherein the vehicle crime prevention method is increased by one step. The level determination information acquisition unit includes a moving image capturing unit that captures a moving image around the vehicle, acquires moving image data of the captured moving image as the level determination information,
The danger level setting means identifies an approaching object displayed in the video image, further identifies a movement of the approaching object, and sets the danger level when the movement matches a predetermined suspicious behavior pattern. The vehicle crime prevention method according to any one of claims 1 to 21, wherein the vehicle crime prevention method is increased by one step. The level determination information acquisition means has a recording means for recording the sound around the vehicle, acquires the recorded voice data as the level determination information,
23. The risk level setting unit extracts a keyword included in the acquired voice data and raises the risk level by one step when the keyword matches a predetermined suspicious keyword. The vehicle crime prevention method according to any one of the preceding claims. A vehicle security system in which each step according to any one of claims 1 to 23 is executed.

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