JP5018534B2 - Vehicle security system - Google Patents

Description

  The present invention relates to a vehicle security system in which a plurality of vehicles monitor each other by communication between the plurality of vehicles that have joined a network.

  2. Description of the Related Art Conventionally, along with an increase in vehicle theft, devices and systems for monitoring a parked vehicle by some method have been put into practical use. As one type, there is a type in which a vibration sensor or the like is installed in a vehicle, the theft is detected by vibration generated when the theft occurs, and a security company (security company) is notified by a wireless device. Research is also being conducted on a system in which a plurality of vehicles monitor each other by inter-vehicle communication.

As an example of the latter, a short-range wireless LAN that has a unique registration number, constructs a communication network among a plurality of unspecified vehicles, and transmits and receives the registration number, and a communication network received from the short-range wireless LAN are configured. An invention relating to a vehicle theft monitoring system comprising: a registration number storage means for storing registration numbers of a plurality of vehicles; and transmitting and receiving the registration numbers to mutually monitor a plurality of unspecified vehicles. It is disclosed (for example, see Patent Document 1). In this system, an abnormality of a vehicle is detected by mutually monitoring connection information, disconnection information, and time information of each of a plurality of unspecified vehicles according to the corresponding registration numbers via a communication network. It is said.
JP 2004-94435 A

  However, in the conventional system described above, consideration is not given to providing the user with information on the security level that varies depending on the vehicle subscription status and communication capability. For this reason, when a user joins a network, it may not be possible to determine whether sufficient security can be ensured.

  The present invention has been made to solve the above-described problems, and has as its main object to provide information related to a security level that fluctuates according to the vehicle subscription status and communication capability.

In order to achieve the above object, one embodiment of the present invention provides:
A vehicle security system in which a plurality of vehicles monitor each other by communication between a plurality of vehicles participating in a network,
Security level calculation means for calculating the security level corresponding to the position by counting the capability count of each vehicle that has joined the network,
Providing the user with a security level corresponding to the position calculated by the security level calculation means,
It is a vehicle security system.

  According to this aspect of the present invention, in order to calculate the security level corresponding to the position based on the capacity count of each vehicle, the user is provided with information regarding the security level that varies depending on the vehicle's subscription status and communication capability. be able to.

In one embodiment of the present invention,
The security level calculation means includes
Outside facilities,
An in-vehicle device mounted on a vehicle communicable with the facility outside the vehicle among a plurality of vehicles subscribed to the network.

In one embodiment of the present invention,
The security level calculation means may be an out-of-vehicle facility capable of communicating with any of a plurality of vehicles that have joined the network.

In one embodiment of the present invention,
The security level calculation unit may be a unit that calculates a security level corresponding to the position in consideration of a security count set in advance in association with a region.

In one embodiment of the present invention,
The security level calculation means may be means capable of calculating a security level corresponding to a future position when it is assumed that a vehicle that has not joined the network has joined the network.

In one embodiment of the present invention,
The security level calculation means acquires a destination set in the navigation device of each vehicle that is subscribed to the network, replaces the acquired destination with the current position of each vehicle, and sets the future position. It may be a means capable of calculating the corresponding security level.

In one embodiment of the present invention,
The means for providing the user with a security level corresponding to the position calculated by the security level calculation means is, for example, an in-vehicle display device or a user-owned terminal.

  ADVANTAGE OF THE INVENTION According to this invention, the information regarding the security level which fluctuates according to the subscription status and communication capability of a vehicle can be provided to a user.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings.

  Hereinafter, a vehicle security system 1 according to an embodiment of the present invention will be described.

[Configuration]
FIG. 1 is a block diagram illustrating a system configuration example of the vehicle security system 1. The vehicle security system 1 includes, for example, a plurality of probe vehicles 10, a plurality of non-probe vehicles 20, a roadside device 50, and an information center 100. The information center 100 may also be a network in which a plurality of facilities are connected.

  The probe vehicle 10 includes a short-range wireless communication device 11, an anti-center communication device 12, a control device 13, an information collecting sensor 14, a security device 15, and a navigation device 16. Further, the non-probe vehicle 20 includes a short-range wireless communication device 21, a control device 23, an information collecting sensor 24, a crime prevention device 25, and a navigation device 26.

  The short-range wireless communication device 11 is a device for transmitting and receiving information to and from vehicles around the host vehicle by a communication method such as DSRC (Dedicated Short Range Communication). The vehicle-to-vehicle communication method is not limited to this, and Bluetooth (registered trademark) may be used as a communication method, or communication using a wireless local area network (LAN) or a beacon may be performed. The short-range wireless communication device 11 can also perform wireless communication with the roadside device 50 connected to the information center 100 via the network 80. The network 80 is, for example, a wired network such as a public switched telephone network (PSTN), a digital communication network (ISDN), or an optical fiber. The short-range wireless communication device 21 has a similar function and configuration.

  The center communication device 12 communicates with the information center 100 via the radio base station 70, for example. Between the center communication unit 12 and the wireless base station 70, wireless communication using a cellular phone network, PHS (Personal Handy-phone System) network, wireless LAN, WiMAX (Worldwide Interoperability for Microwave Access), satellite phone, beacon, etc. Communication takes place. The radio base station 70 is connected to the information center 100 via the network 80.

  The control device 13 is, for example, a computer unit in which a ROM, a RAM, and the like are connected to each other through a bus with a CPU at the center. In addition, an HDD (Hard Disc Drive), a DVD (Digital Versatile Disk) drive, a CD-ROM A storage device 13A such as a drive and a flash memory, an I / O port, a timer, a counter, and the like are provided. The ROM stores programs and data executed by the CPU. The control device 23 has the same function and configuration.

  The information collection sensor 14 includes, for example, a camera that captures a scene outside the vehicle, an infrared sensor, a sonar, a radar device, a temperature sensor, and the like. The same applies to the information collecting sensor 24.

  The security device 15 is, for example, a known immobilizer system or vibration sensing device, and detects an abnormal state of the vehicle and outputs it to the control device 13. The security device 25 has the same function and configuration.

  The navigation device 16 has a function of specifying the current position of the host vehicle by GPS (Global Positioning System), INS (Inertial Navigation System), or the like. Further, a route to the destination input to the touch panel or the voice input device is generated, and navigation display and voice guidance for guiding the host vehicle to the destination are performed. When the destination is set, the navigation device 16 calculates an estimated required time to reach the destination. Then, the coordinates of the destination and the estimated required time are output to the control device 13. The navigation device 26 has a similar function and configuration.

  The probe vehicle 10 and the non-probe vehicle 20 having such a configuration generate a security network in a communicable range and monitor each other mainly for prevention of vehicle theft. In the application of the present invention, there is no particular limitation on the monitoring method for theft prevention, and any method may be used. For example, when the security device 15 (or 25) outputs a theft signal, the control device 13 (or 23) instructs the short-range wireless communication device 11 (or 21) to transmit a theft state signal, and a nearby vehicle receives this to recognize the position of the stolen vehicle. The position of the vehicle may be received by a vehicle in the stolen state specified by GPS or the like, or may be estimated by the receiving vehicle based on the intensity of the received radio wave (measured by a plurality of vehicles). It can be estimated from the received signal strength).

  Further, in this security network, not only monitoring between vehicles but also processing for collecting information for calculating the security level in the security network and uploading it to the information center 100 is performed. The probe vehicle 10 and the non-probe vehicle 20 transmit information related to the own vehicle to vehicles in the security network, for example, when parked and when the destination is set in the navigation devices 16 and 26 (illustratively, The transmission timing may be arbitrarily determined).

  Information on the own vehicle includes the performance of the short-range wireless communication device 11 (or 21) and the security device 15 (or 25), information acquired by the information collecting sensor 14 (or 24), and the navigation device 16 (or 26). The destination and the estimated required time set in, the scheduled parking end time (scheduled start time) when having a scheduling function, the current position of the host vehicle, the vehicle ID (user ID), and the like.

  The probe vehicle 10 or the roadside device 50 aggregates information exchanged within the security network and uploads the information to the information center 100. FIG. 2 is a diagram conceptually showing how the probe vehicle 10 aggregates information and uploads it to the information center 100. FIG. 3 is a diagram conceptually showing how the roadside device 50 aggregates information and uploads it to the information center 100 when the probe vehicle 10 does not exist in the security network.

[Upload process]
Hereinafter, processing related to the above-described information aggregation and upload will be described. FIG. 4 is a flowchart showing a flow of characteristic processing executed by the probe vehicle 10. This flow is started by the control device 13 using a sleep power source or the like when the probe vehicle 10 is parked (when the vehicle system is stopped), for example.

  First, it is determined whether or not the probe setting is on (S100). The probe setting is a setting that can be changed by a user operation or the like. If the probe setting is off, one routine of this flow is terminated without performing any processing.

  If the probe setting is on, peripheral information is generated and stored in the storage device 13A (S102). Information including information stored in this step is referred to as individual security information. The peripheral information includes ambient brightness, weather, radio communication radio wave intensity, and the like, and is generated based on a state signal input from the short-range wireless communication device 11 or the information collecting sensor 14.

  Subsequently, a partner device capable of wireless communication with a security setting (setting to connect to a security network) is searched (S104), and a security network for collecting information is established (S106).

  When the security network is established, information held in each vehicle is requested, received, aggregated, and stored in the storage device 13A (S108).

  And until information is acquired from all the vehicles in the communicable range, the process of S104-S108 is repeatedly performed (S110).

  When information is acquired from all vehicles within the communicable range, the center communication device 12 connects to the information center 100 (S112), and the individual security information in the security network stored in the storage device 13A is uploaded to the information center 100. (S114).

  In addition, as shown in FIG. 3, when the probe vehicle 10 does not exist in the security network, the roadside device 50 performs each process shown in FIG.

  As already shown in FIG. 1, the information center 100 includes a center side communication device 102, a control device 104, a security map database management device 106, and a security map database 108 stored in a predetermined storage medium.

  In the information center 100, the individual security information uploaded by the probe vehicle 10 or the roadside device 50 is reflected in the security map database 108 by the following processing. FIG. 5 is a flowchart showing a flow of characteristic processing executed by the control device 104 and the security map database management device 106.

  First, the individual security information uploaded by the probe vehicle 10 or the roadside device 50 is collected (S200), and the current security score and the future security score of the area are calculated with reference to the security map database 108 (S202). ). Details of these processes and the concepts of “present” and “future” will be described later.

  Then, current and future security levels are determined (S204), and current information and future information in the security map database 108 are updated (S206).

  FIG. 6 is a diagram conceptually showing information stored in the security map database 108. As illustrated, the security map database 108 includes past information, current information, and future information. The past information is accumulated current information generated in the past, and is used for calculation of statistical information. The current information is generated based on the latest individual security information uploaded by the probe vehicle 10 or the roadside device 50. The future information includes, for example, prediction information after one hour, prediction information after two hours, etc., and the vehicle currently parked leaves from the security network or arrives at the destination and is parked. This is expected information that incorporates security network participation.

[Calculation of security level]
Hereinafter, calculation of the security level will be described. The security level is calculated based on factors in the network and factors outside the network.

  The factors in the network are factors that depend on the presence of security devices (alarm devices, cameras, Internet connection devices, etc.) and roadside devices 50 of each vehicle. The security level of the network fluctuates when the vehicle or the roadside device 50 on which the device is mounted participates in the security network. As a factor in the network, a network security score (N) that is the sum of individual security scores (C) that are individual security performances of vehicles or roadside devices 50 constituting the security network is calculated by the following equation (1). To do.

  N = Σ (C) (sum of individual security scores for the number of units) (1)

  The calculation of the individual security score is performed based on, for example, the correspondence table illustrated in FIG. When each vehicle or the roadside device 50 has the left side device in FIG. 7, the corresponding right side score is added. In the figure, the Internet connection device refers to a device that can be connected to the information center 100 or the like via the wireless base station 70 or the like, such as the center communication device 12. The alarm device refers to a device that can transmit the situation to the surroundings in a situation where theft has occurred or is likely to occur. The fixed short-range communication device refers to a fixed device that can communicate with each vehicle, such as the roadside device 50. The short-range wireless communication device refers to a device such as the short-range wireless communication device 11 (or 21). The score given to the short-range wireless communication device is changed depending on the communication method. For example, Bluetooth generally gives a low score because the communicable area is narrower than that of a wireless LAN. The camera is used for moving object detection, in-vehicle shooting, and the like, and notifies changes in the surrounding conditions. For example, in the case of a vehicle equipped with all devices other than the “fixed short-range communication device”, the individual security score (C) is 10 + 9 + 5 + 3 + 2 + 2 + 2 for a total of 28.

  Factors outside the network are factors such as the crime rate, time of day, season, and weather in the area. As factors outside the network, for example, a parking lot security score (P), a regional index (L), a time zone index (T), and a security score decrease rate (V) are calculated.

  The parking lot security score (P) is a value indicating the high security performance of the parking lot, whether it is manned or unmanned, whether it is paid or free, whether there is a fence or an outer wall, etc. Calculate so that parking lots with higher security performance have higher values.

  The regional index (L) is a value indicating the likelihood of occurrence of vehicle-related crimes such as vehicle theft and storming in the relevant region in the past. The higher the crime rate, the higher the value. For example, it calculates by following Formula (2). In addition, when the numerator is zero in the formula (2), L = 1 is set.

  L = (Total crimes in the surrounding area) / (National average crimes)… (2)

  The time index (T) is a value for determining whether or not a crime such as vehicle theft is likely to occur. The higher the crime occurrence rate, the higher the value, for example, by the following equation (3) calculate. Note that L = 1 when the numerator is zero in the formula (3).

  T = (Average crime rate for the current time zone in the area) / (All day average crime rate for the area) (3)

  The security score drop rate (V) is a percentage value that indicates the probability that the security level will drop significantly (above the threshold) in the parking time zone expected in the relevant area from information on the same area in the past. is there. For example, after the evening on weekdays, the number of vehicles decreases in the office district due to a decrease in the population, and there is a high probability that this value will decrease. It calculates by following Formula (4).

  V = (the number of days when the security score has fallen more than a threshold value in the same time zone) × 100 / (the accumulated number of days of data) (4)

  Then, the total security score (S) is calculated by the following equation (5) by combining the factors in the network and the factors outside the network. The security level that is finally output is a value that represents the overall security score (S) in, for example, five levels such as A to E.

  S = {(N + P) + 100 × (1−V / 100)} / (L + T) (5)

[Provision of security level information]
The security level calculated as described above is provided to the user so as to be displayed on, for example, a display device of a navigation device or a monitor screen of a user-owned computer.

  FIG. 8A is an image diagram showing how the security level is displayed on the display device of the navigation device. FIG. 8B is an image diagram showing how the security level is displayed on the monitor screen of the user-owned computer. In the latter case, it is preferable to control to display the security level from the past to the future with a slide bar or the like.

  Such a display can be started by connecting to the network 80 at a desired timing. When a significant decrease in security level occurs in a specific area, the information center 100 sends an e-mail to a vehicle existing in the area. May be equal. Specifically, for example, it is preferable that the information is automatically downloaded from the information center 100 and provided to the user by the following processing.

  FIG. 9 is a flowchart showing a flow of processing for automatically acquiring a security level and proposing a recommended parking lot before the vehicle reaches the destination. This flow is based on the premise that the vehicle has an Internet connection means such as the center communication device 12.

  First, it is determined whether or not the vehicle has approached the destination (S300). Specifically, it is determined whether or not the vehicle has entered an area within a predetermined distance centered on the destination, or whether or not the route distance (path distance) is within a predetermined distance. If the destination is not approached, one routine of this flow is terminated without performing any processing.

  If the destination is approached, the information center 100 is connected (S302), and the security level information around the destination is downloaded from the information center 100 (S304).

  Then, as shown in FIG. 8A, the security level information is superimposed on the navigation display (S306).

  Subsequently, referring to the distance between each parking lot and the destination, it is determined whether or not there is a recommended parking lot that has a sufficient security level (S308). Specifically, for example, a determination is made by searching for a parking lot within a predetermined distance from the destination and having a security level of C or higher. If there is no recommended parking lot, one routine of this flow is terminated without performing any processing.

  If there is a parking lot to be recommended, the parking lot is proposed to the user by screen display and voice (S310).

  Then, it is determined whether or not the proposal of S310 has been accepted by voice or touch operation (S312). If the proposal is accepted, the destination is changed to the proposed parking lot (S314), and one routine of this flow is terminated.

  Unlike FIG. 9, FIG. 10 shows a flow of processing for automatically acquiring a security level and proposing a recommended parking lot when the vehicle engine is stopped without a destination being set. It is a flowchart which shows. This flow is repeatedly executed while the destination is not set, for example (the flow may be executed with the destination set).

  First, it is determined whether or not the engine is stopped (S400). If the engine is in continuous operation, no routine is performed and one routine of this flow is terminated.

  When the engine is stopped, peripheral information is acquired (S402), and individual security information is uploaded to the information center 100 (S404). Note that this process overlaps the process described with reference to FIG.

  And the security level information in the area around the own vehicle is acquired from the information center 100 (S406), and it is determined whether the security level is less than the threshold value (S408). If the security level is equal to or higher than the threshold value, one routine of this flow is terminated without performing any processing.

  On the other hand, if the security level is less than the threshold, the user is notified of this by screen display or sound (S410). Thus, the user can take measures such as giving up parking for a long time or searching for another parking lot.

  According to the vehicle security system 1 of the present embodiment described above, since the security level is calculated based on the security capability of a plurality of vehicles and roadside devices, the security level varies depending on the vehicle's subscription status and communication capability. Information can be provided to the user.

  In addition, since the security level is calculated in consideration of factors outside the network, it is possible to provide the user with information on the security level according to the local security situation.

  Further, since it is possible to provide information on the future security level, the user can check the security level around the destination to be parked. In particular, when a destination is set in the navigation device, each vehicle can automatically check the current or future security level around the destination and perform control that is provided to the user. In addition, the user can input a desired future time and manually display the security level of the invitation.

  The best mode for carrying out the present invention has been described above with reference to the embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention. And substitutions can be added.

  For example, the information center 100 may calculate only the current security score and provide information to the user without calculating the future security score.

  The present invention can be used in the automobile manufacturing industry, the automobile parts manufacturing industry, and the like.

1 is a block diagram illustrating a system configuration example of a vehicle security system 1. FIG. It is a figure which shows notionally that a probe vehicle 10 aggregates information and uploads it to the information center 100. It is a figure which shows notionally a mode that the roadside apparatus 50 aggregates information and uploads to the information center 100, when the probe vehicle 10 does not exist in a security network. 4 is a flowchart showing a flow of characteristic processing executed by the probe vehicle 10. It is a flowchart which shows the flow of the characteristic process performed by the control apparatus 104 and the security map database management apparatus 106. It is a figure which shows notionally the information memorize | stored in the security map database. It is an example of the correspondence table for calculating an individual security score. It is an image figure which shows a mode that a security level is displayed on the display apparatus of a navigation apparatus, or the monitor screen of a user-owned computer. It is a flowchart which shows the flow of the process for acquiring a security level automatically before a vehicle arrives at the destination, and proposing a recommended parking lot. It is a flowchart which shows the flow of the process for acquiring a security level automatically and proposing a recommended parking lot, when the engine of a vehicle is stopped in the state where the destination is not set.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle security system 10 Probe vehicle 11, 21 Short-range wireless communication device 12 Center communication device 13, 23 Control device 14, 24 Information collecting sensor 15, 25 Security device 16, 26 Navigation device 20 Non-probe vehicle 50 Roadside device 70 Wireless base station 80 Network 100 Information center 102 Center side communication device 104 Control device 106 Security map database management device 108 Security map database

Claims (6)

Information acquisition means;
From each vehicle communicable with the information acquisition means, information on the position of the vehicle and whether or not a communication device or security device is installed is acquired , and the information acquisition means can be aggregated to communicate with the information acquisition means Security level calculation means for calculating a security level corresponding to the area including the position of each vehicle ,
Providing the user with information on the security level corresponding to the area calculated by the security level calculation means;
Vehicle security system. The information acquisition means includes an in-vehicle device mounted on a vehicle,
The vehicle security system according to claim 1. The information acquisition means is an out-of- vehicle facility capable of communicating with a vehicle.
The vehicle security system according to claim 1. The security level calculation means is a means for calculating a security level corresponding to the area in consideration of a security count set in advance in association with the area .
The vehicle security system according to any one of claims 1 to 3. It said security level calculation unit acquires a destination set in the navigation system of the vehicle via the information acquisition means, to replace the current position of each vehicle with the acquired destination of future regional Is a means that can calculate the security level corresponding to
The vehicle security system according to any one of claims 1 to 4. The means for providing the user with a security level corresponding to the area calculated by the security level calculation means is an in-vehicle display device or a user-owned terminal.
The vehicle security system according to any one of claims 1 to 5.

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