JP4259434B2 - Vehicle anti-theft system - Google Patents

Description

  The present invention relates to a vehicle antitheft system that provides a vehicle antitheft service using information communication, and more particularly to a vehicle antitheft system having a plurality of security levels.

  Automobile users suppress the occurrence of damage by self-defense measures such as wearing anti-theft devices to protect their vehicles from theft. In addition, in order to reduce the damage caused by theft, join theft insurance. However, in recent years, the techniques of vehicle theft have become more sophisticated, and it has become impossible to effectively prevent theft simply by attaching the antitheft to the vehicle.

  In addition, since the user cannot know the past theft occurrence situation at the parking place that is arbitrarily selected, when the user sets the security level of the anti-theft device, the security level is compared with the theft occurrence level of the parking place. The setting value may be too low. Furthermore, the user may not activate the anti-theft device with the intention of parking for a short time.

  Therefore, a vehicle theft prevention system that sets a security level based on vehicle theft information at a parking place has been proposed. Specifically, multiple security levels are prepared for the vehicle anti-theft information prevention service provided by the management center, and in places where theft occurrence level is high, the security level is increased to make it easier to detect by raising the abnormality detection level, Conversely, by lowering the detection level in a low place to make it difficult to detect, an optimum security level is set according to the situation. (See Patent Document 1).

JP 2003-085676 A

  In the example of Patent Document 1, the detection level is basically changed, and the degree of difficulty in unlocking the vehicle itself is not changed. In other words, simply changing the detection level of a stolen act does not change the level of difficulty in releasing the security of the vehicle itself, so if you can proceed smoothly, theft before the security guards and police officers come There is a fear. However, the higher the security level in the dark clouds, the more difficult it is to release the security, but the more difficult it is to be stolen, but the more difficult it is for the user and the convenience becomes worse.

  With the above problem as a background, an object of the present invention is to provide a vehicle theft prevention system capable of achieving both user convenience and security.

Means for Solving the Problems and Effects of the Invention

  The present invention provides a vehicle theft prevention system for solving the above-described problems. That is, according to claim 1, a vehicle anti-theft service is provided which is connected to a vehicle-mounted device for detecting theft-related matters related to vehicle theft via a communication line and has a plurality of security levels for the vehicle anti-theft equipped with the vehicle-mounted device. A vehicle theft prevention system including a management center, a schedule acquisition unit that acquires a use schedule of a vehicle, and a time calculation unit that calculates a time from a current date and time to a date and time when a vehicle included in the use schedule is next used And a security level setting means for setting a security level based on the calculated time.

  The present invention prevents unauthorized use / theft of a vehicle by changing the locking conditions, starting restriction conditions, and the like of the vehicle in accordance with the use situation (schedule) of the vehicle. With the above configuration, when the time until the user next uses the vehicle is short, the security level can be lowered to increase convenience, and when the user does not use the vehicle for the time being, the security level is increased. By raising the value, it is possible to make it possible to quickly detect the intrusion into the vehicle (or theft of the vehicle), and to improve the security. Therefore, it is possible to achieve both user convenience and security.

  According to the second aspect of the present invention, the vehicle antitheft system of the present invention can be configured to have a security level changing means for the vehicle user to change the security level. With this configuration, for the convenience of the user, the security level can be increased even if the time until the user next uses the vehicle is short, or the security level can be lowered even if the user does not use the vehicle for the time being. It is possible to set a fine security level according to the user's situation.

  According to the third aspect of the present invention, the vehicle antitheft system according to the present invention includes a release condition setting means for setting a release condition for releasing a state in which the security level is set, and a vehicle state according to the set security level. The condition detection means for determining whether the detected state of the vehicle and the detected vehicle state match the release condition, and the state where the security level is set when the detected vehicle state matches the release condition And a security level releasing means. With this configuration, for example, if a security level that cannot be unlocked with a normal key is set, it cannot be unlocked with an illegally obtained or created key, so that entry into the vehicle and vehicle theft can be prevented.

  According to claim 4, the vehicle anti-theft system of the present invention sets intrusion detection means for detecting intrusion into the vehicle and conditions for detecting intrusion into the vehicle according to the set security level. A configuration having intrusion detection condition setting means and intrusion determination means for determining that the vehicle has entered when the state of the vehicle matches a condition for detecting entry into the vehicle can be employed. With this configuration, entry into the vehicle can be accurately determined, and security can be improved.

  According to the fifth aspect, when it is determined that the vehicle theft prevention system vehicle of the present invention has entered the vehicle, it is possible to adopt a configuration having notifying means for notifying the user of the vehicle to that effect. With this configuration, the user of the vehicle can quickly know that the vehicle has entered even if the user is far away from the vehicle, and can quickly respond to reports to the police and the like. Furthermore, if conditions for detecting entry into the vehicle are set according to the security level that has been set, there will be no notification of erroneous entry into the vehicle, improving the accuracy of detection of vehicle entry. It becomes possible to do.

  According to the sixth aspect of the present invention, the vehicle antitheft system includes user determination means for determining whether or not the user is a vehicle, and includes a determination that the vehicle condition is determined to be a user of the vehicle. Can be taken. With this configuration, since the security level is not canceled unless the user is a vehicle user, the security can be further improved and the vehicle can be prevented from entering and the vehicle being stolen.

  According to claim 7, the vehicle anti-theft system of the present invention has user determination means for determining whether or not the user is a vehicle user, and is not a vehicle user as a condition for detecting entry into the vehicle. It is possible to take a configuration including being determined. With this configuration, it is possible to accurately determine the intrusion into the vehicle without erroneously detecting it, and it is possible to further improve the security.

  The purpose of providing a vehicle anti-theft system that achieves both user convenience and security is to change the locking conditions and start restrictions of the vehicle according to the usage status (schedule) of the vehicle. Realized by a vehicle anti-theft system that prevents use and theft.

  Hereinafter, a vehicle theft prevention system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of a vehicle anti-theft system, and includes an in-vehicle device 100 mounted on a vehicle and a vehicle anti-theft management center (hereinafter referred to as “theft prevention management center”) that performs management related to anti-theft in a vehicle equipped with the in-vehicle device 100. 200, and a mobile terminal 401 (security level changing means, schedule acquisition means of the present invention) or a personal computer (hereinafter abbreviated as PC) 402 possessed by a vehicle user (user) 400. (Security level change means, schedule acquisition means of the present invention).

  The in-vehicle device 100 and the management center 200 are connected to each other via a communication device 116 and a communication device 202 so that they can communicate with each other. The in-vehicle device 100 can transmit data such as various sensor signals and image data to the management center 200. Further, the management center 200 is capable of network communication with the mobile terminal 401 or the PC 402 via the communication device 202, and can transmit a message from the management center 200 to the mobile terminal 401 or the PC 402. Further, the vehicle-mounted device 100 can be remotely operated from the portable terminal 401 or the PC 402 via the management center 200. The connectable network is not particularly limited, such as a public network or the Internet.

  As shown in FIG. 1, the in-vehicle device 100 has, as a monitoring function for preventing theft, a peripheral monitoring sensor 101 that detects an object approaching the periphery of the vehicle with ultrasonic waves, radio waves, or the like (the state detection unit, the intrusion detection unit of the present invention). ), A camera 102 (state detection means and intrusion detection means of the present invention) for photographing the vehicle interior and the periphery of the vehicle, a microphone 103 (state detection means and intrusion detection means of the present invention) for detecting sounds in the vehicle interior and the vicinity of the vehicle, A recognition sensor 104 that can recognize the vehicle owner is provided. Further, the in-vehicle device 100 includes a memory 105 that can store various data, and an alarm 106 (notification unit of the present invention) that generates an alarm in a situation where the possibility of theft is high. As alarms by the alarm 106, buzzer sounding by the alarm device 124, blinking of the hazard (hazard lamp) 125, blinking of the interior light, and sounding of the horn can be performed.

  The recognition sensor 104 (user determination means of the present invention) is photographed by a fingerprint detected by a fingerprint collator (not shown) attached to a door knob or the like, a voice print detected from voice input from the microphone 103, and a camera 102. Whether the user is a user is determined based on the image of the retina or iris (iris), the shape of the face, the pattern of the blood vessels in the palm, and the like. It may be determined whether the user is a user based on a body fat percentage measured by a body fat percentage measuring device (not shown) attached to a door knob or the like. Data serving as a criterion for determination is stored in the memory 105 in advance.

  In addition, a sheet-like pressure-sensitive surface type contact sensor and a fingerprint collator in which a plurality of pressure-sensitive contacts whose contact resistance (contact capacity may be changed) by pressing is changed and arranged in the sheet are provided on the vehicle. Whether or not the user is a user may be determined based on a pressing state when the button is pressed, a fingerprint, and a palm print. Furthermore, a bone conduction microphone may be provided in addition to the normal microphone (103) in the vehicle, and it may be determined whether the user is a user based on air conduction sound and bone conduction sound which are normal sounds. The bone conduction microphone is used by being applied to the ear or the jawbone under the ear, and the basic configuration thereof is well known, so detailed description thereof is omitted.

  In addition, the above-described recognition sensor 104 is provided in the mobile terminal 401, data from the recognition sensor 104 is transmitted to the in-vehicle device 100 via the management center 200, and data received by the in-vehicle device 100 is stored in the memory 105. You may determine whether it is a user by comparing with reference | standard data.

  The memory 105 (the release condition setting means and the intrusion detection condition setting means of the present invention) stores data necessary for the operation of the vehicle antitheft system and retains the stored contents even when the vehicle is parked (the ignition switch is off). For this purpose, a non-volatile memory such as a flash memory is used. Reference data for determining whether or not the user is a user by the recognition sensor 104 is also stored in the memory 105.

  Further, the in-vehicle device 100 includes a GPS (Global Positioning System) 107 (a parking location detection unit of the present invention) that detects the current position of the vehicle. In addition to the GPS 107, a known geomagnetic sensor, gyroscope, distance sensor, steering rotation sensor, wheel sensor of each rolling wheel, and the like may be used. Since these sensors have errors of different properties, they may be configured to be used while being complemented by a plurality of sensors.

  The in-vehicle device 100 also includes an immobilizer 108 that permits engine start by collating an ID code, and an intrusion sensor 109 that detects presence or absence of an intruder in the vehicle interior by radio waves, ultrasonic waves, vehicle body vibration, window glass cracks, and the like. (State detection means, intrusion detection means of the present invention), electronic keys 110 such as wireless keys and smart keys, door opening / closing, door locking / unlocking, trunk / bonnet opening / closing, window opening / closing, etc. It includes a body ECU 111 that performs control, an engine ECU 112 that performs various controls related to the engine, and the like.

  The security ECU 114 (time calculation means, condition judgment means, intrusion judgment means, security level setting means, security level release means of the present invention) is configured as a normal computer, and is a known CPU, ROM, RAM, and input / output circuit. Certain I / Os and bus lines connecting these components are provided. A processing circuit for exchanging data and signals with external devices, sensors, and the like is also provided. The CPU performs control according to control programs and data stored in the ROM and RAM. The security ECU 114 performs processing such as changing the security level and outputting an alarm based on data and signals input from external devices, sensors, and the like. The security ECU 114 can send an engine stop and engine start permission / prohibition command to the engine ECU 112 that controls the engine. The engine ECU 112 also performs engine control based on the command from the security ECU 114.

  The in-vehicle device 100 is configured to transmit data indicating that the state of the vehicle is normal to the management center 200 every predetermined time (for example, every 10 minutes) stored in advance in the memory 105. Thereby, in the management center 200, when normal data is no longer transmitted from the vehicle-mounted device 100, it can be determined that some abnormality has occurred in the parked vehicle. Alternatively, the management center 200 may inquire about the vehicle status to the in-vehicle device 100 every predetermined time (for example, every 10 minutes), and the in-vehicle device 100 may transmit data related to the vehicle status to the management center 200.

  The management center 200 includes a server 201 composed of known computers, workstations, and the like, a communication device 202, a monitoring control panel 203, and the like. In the management center 200, the parked vehicle is monitored by the monitoring control panel 203 based on various data transmitted from the in-vehicle device 100 by a program operating on the server 201. In addition, the management center 200 is configured so that the in-vehicle device 100 can be remotely operated.

  The management center 200 includes three databases A to C. The database A stores data on the user who uses the vehicle anti-theft system and the vehicle, and data on the operating status of the in-vehicle device 100. The database B stores data such as information on parking locations of vehicles and vehicle theft information regarding vehicle theft in the past. Examples of past theft information include the location of the theft, time, vehicle type, details of the occurrence of the anomaly, details of the crime (mischief, vandalism, vehicle theft, etc.), distinction between attempted or attempted. The database C stores data necessary for determining the occurrence of an abnormality in the vehicle based on the transmission data from the in-vehicle device 100 and analyzing the content of the abnormality.

  FIG. 6 shows an example in which a key strength level corresponding to a security level, a release method, an abnormality detection method, a threshold value thereof, an alarm when an abnormality is detected, and a security level update time are combined. There are five security levels from level 0 to level 4, and the higher the level value, the higher the security level (less likely to be stolen). Details of each security level are described below.

  At security level 0, the door is unlocked, there is no means for unlocking the door, and there is no method for releasing the security level. Further, since no abnormality detection is performed, a threshold value for vibration detection is not set. Therefore, no alarm is given when an abnormality is detected. Since level 0 is the most dangerous state, the security level update interval is set to 30 sec.

  Security level 1 is when the door is locked, and the door is unlocked with an electronic key 110 such as a mechanical key or wireless key that is inserted into a normal key cylinder and locked / unlocked, and opened with the mechanical key or electronic key 110. When locked, the security level is canceled (becomes level 0). As an abnormality detection method, a vibration sensor included in the intrusion sensor 109 works. When the vehicle vibration exceeds a predetermined threshold without normal unlocking, an abnormality is detected and the hazard lamp 125 blinks. Let me know the abnormality. The threshold for vibration detection is set to the maximum (the sensitivity is the worst). The security level update interval is set to 5 minutes.

  The security level 2 is fixed to the door locked state by an electric door lock latch (E latch) 121 in a state where the door is locked. Only the electronic key 110 such as a well-known wireless key can be unlocked (release of the E latch), and cannot be unlocked with a mechanical key. When unlocked by the electronic key 110, the security level is released (becomes level 0). In addition, as a method of detecting abnormality, the door lock position switch included in the vibration sensor and intrusion sensor 109 works, and vibration is generated without normal unlocking, or the door lock position is in an open state (abnormal unlock). When an error occurs, an abnormality is detected, and when an abnormality occurs, the abnormality is notified by blinking of the hazard lamp 125 and a buzzer included in the alarm device 124. Although the threshold value for detecting an abnormality is large, the sensitivity is better than that in the case of security level 1. The security level update interval is set to one hour.

  Security level 3 is a state where the door is locked and the power supply to the door lock latch (E latch) 121 is cut off by the latch electric dividing circuit 122 and is mechanically and electrically fixed in the locked state. is there. The door can be unlocked only by a special operation such as unlocking by a command signal from the management center 200, and cannot be unlocked by the mechanical key and the electronic key 110. When unlocked by the special operation, the security level is released (becomes level 0). In addition, as an abnormality detection method, vibration detection, abnormality unlocking, and current detection included in the intrusion sensor 109 work, and vibration is generated without normal unlocking, or the door lock position is opened. In addition, an abnormality is detected when the door is open and an electric current is generated due to lighting of an indoor lamp, etc. In the event of an abnormality, in addition to the flashing of the hazard lamp 125 and the buzzer sound included in the alarm device 124, a siren whose volume is larger than that of the buzzer An abnormality is notified by sounding 126. The threshold for detecting anomalies is moderate, but the sensitivity is better than in the case of security level 2. The security level update interval is set to 3 hours.

  Security level 4 is a state where the door is locked, and the door can be unlocked only by the biometric authentication of the user by the camera 102 or the recognition sensor 104. The operation of the electronic verification prohibiting circuit 123 causes the mechanical key, the electronic key 110, and the special key It cannot be unlocked by operation. When it is determined that the user is a user by the biometric authentication, the security level is canceled (becomes level 0). In addition, vibration detection, abnormality unlocking, current detection, and vehicle monitoring work as an abnormality detection method. Vehicle monitoring periodically monitors information taken by the camera 102 while monitoring a person approaching the vehicle with the peripheral monitoring sensor 101. Sent to the management center. That is, at level 4, a method of directly viewing as abnormality detection is added. If it is determined that there is an abnormality by these detection methods, in addition to the flashing of the hazard lamp 125, the buzzer sound included in the alarm device 124, and the siren 126 sounding, the notification device 127 causes an error to the management center 200 via the communication device 116. To report. The threshold for detecting an abnormality is the minimum of the five security levels, and in principle, the security level is not changed. The security level update interval is set to 12 hours.

  The condition for abnormality determination at each security level includes a condition of a level lower than the current level. For example, in the case of security level 3, in addition to the case where the current value exceeds a predetermined threshold, the case where the vibration of the vehicle detected by the vibration sensor included in the intrusion sensor 109 exceeds the predetermined threshold (level 2 abnormality) (Determination condition), it is also determined as abnormal when the door is pry open or when the door is unlocked with something other than the mechanical key / electronic key 110 (level 1 abnormality determination condition).

  In the above example, when the security level is canceled, the level is set to 0. However, the level may be lowered by one level.

  Although the above-described security level, release condition, abnormality determination condition, and the like are stored in the memory 105 in advance, the latest one may be downloaded from the management center 200. Moreover, the user may be able to set in the in-vehicle device 100 by an input device (not shown). Furthermore, the content set in the portable terminal 401 or the PC 402 may be sent to the in-vehicle device 100 via the management center 200. In this case, the information may be sent directly from the portable terminal 401 or the PC 402 to the in-vehicle device 100 without going through the management center 200.

(Security level determination process based on schedule information)
The security level determination process which determines a security level according to the schedule which uses a user's vehicle using FIG. 7 is demonstrated. This process is repeatedly executed together with other processes in a control program executed by a CPU (not shown) included in the security ECU 114.

  When the vehicle is parked (S501: YES), the vehicle user's schedule is confirmed (S502). The confirmation method is as follows.

  First, the vehicle requests the management center 200 to schedule the vehicle user. Next, the management center 200 requests the user's location information and schedule information from the vehicle user (mobile terminal 401 or PC 402) registered in the database A. When the user receives a request from the management center 200, the user confirms his / her schedule with the portable terminal 401 or the PC 402, and next, schedule information including the date and time (only the time is acceptable) for using the vehicle and the destination is displayed. 200. The management center 200 transmits the received user schedule information to the vehicle.

  Note that any schedule stored in the portable terminal 401 or the PC 402 or recorded in the notebook may be used as the schedule. As for the schedule, the vehicle use schedule for a predetermined period may be sent in a batch, such as within the next week.

  Next, the current position information of the vehicle is detected by the GPS 107 (S503).

  The vehicle compares the detected current position information with the user's schedule information, checks whether the current parking position is a destination included in the user's schedule information, and the current parking position is the user's schedule information. If the destination is included in the destination (S504: YES), a time T from the schedule information and the current date to the date when the vehicle is used next is calculated (S505). Note that the current date and time is determined by other methods such as a method in which the security ECU 114 itself has an RTC (Real Time Counter) for directly measuring time, a method using current time information included in a GPS signal received by the GPS 107, a vehicle navigation device, and the like. It can be acquired by a method of acquiring time information by communication with a vehicle-mounted device or a method of acquiring time information from a facility / device outside the vehicle using a communication line. Based on the calculated time T, the security level is determined as follows.

  When T ≦ 1 minute (t1) (S506: YES), the security level SL is set to level 0 (507), and the door lock 120 is opened (S508).

  When 1 minute (t1) <T ≦ 30 minutes (t2) (S509: YES), the security level SL is set to level 1 (S510), and the door lock 120 is set to a locked state (S511).

  When 30 minutes (t2) <T ≦ 1 hour (t3) (S512: YES), the security level SL is set to level 2 (S513), the door lock 120 is locked, and the door lock latch 121 is also locked. (Double lock locking, S514).

  When 1 hour (t3) <T ≦ 24 hours (t4) (S515: YES), the security level SL is set to level 3 (S516), and the power to the door lock latch (E latch) 121 is set by the latch electrical dividing circuit 122. The supply is cut off, and the locked state is established both mechanically and electrically (S517).

  If 24 hours (t4) <T (S515: NO), the security level SL is set to level 4 (S518), and the operation of the electronic verification prohibiting circuit 123 is set to a state where the unlocking cannot be performed by a normal unlocking operation (S519).

  When the vehicle is parked in the parking lot of the user's home and the user is at home, but the vehicle is not used for the time being, the security level is set high. In this case, it is extremely inconvenient for car washing and cleaning the inside of the car. That is, the security level cannot be accurately set only by the user's schedule information. Therefore, an accurate security level can be set by determining by combining the user's schedule information and position information.

(Security level determination process based on the distance between the vehicle and the user)
A security level determination process for determining a security level according to the distance between the vehicle and the user will be described with reference to FIG. This process is repeatedly executed together with other processes in a control program executed by a CPU (not shown) included in the security ECU 114.

  When the vehicle is parked, the current position of the vehicle is detected by the GPS 107 (S100). Next, the current position of the user of the vehicle is acquired (S101, details will be described later). Then, a distance D between the vehicle and the user is calculated (S102).

From the calculated distance D, the security level is determined as follows.
When D ≦ 5 m (L1) (S103: YES), the security level SL is set to level 0 (S104).

  When 5m (L1) <D ≦ 1Km (L2) (S106: YES), the security level SL is set to level 1 (S107).

  When 1 km (L2) <D ≦ 50 km (L3) (S109: YES), the security level SL is set to level 2 (S110).

  When 50 km (L3) <D ≦ 100 km (L4) (S112: YES), the security level SL is set to level 3 (S113).

  If 100 km (L4) <D (S112: NO), the security level SL is set to level 4 (S115).

(User's current position acquisition process)
The user's current position acquisition process will be described with reference to FIG. This process corresponds to step S101 in the flowchart of FIG. In addition, this process is repeatedly executed together with other processes in a control program executed by a CPU (not shown) included in the security ECU 114 in the in-vehicle device 100. In the management center, the program stored in the server 201 is repeatedly executed together with other processes.

  When the current position of the user can be specified without making an inquiry to the management center 200 using the camera 102 or the recognition sensor 104 (the user is in the vicinity of the vehicle) (S200: YES), the current position data of the user is stored in the memory 105. (S219). On the other hand, when the current position of the user cannot be specified (S200: NO), an inquiry request is transmitted to the management center 200 (S210).

  When the management center 200 receives the inquiry request from the vehicle (S211), the management center 200 requests the user (mobile terminal 401 or PC 402) registered in the database A for the current position data of the user (S212). ). When the user receives a request from the management center 200 (S213), the user calculates the current position of the mobile terminal 401 or the PC 402 (S214), and transmits the calculated current position data to the management center 200 (S215).

  As a method for calculating the current position, a device other than the portable terminal 401 or the PC 402 may be used. When the current position is confirmed by the portable terminal 401 or the PC 402, the current position data displayed on the portable terminal 401 or the PC 402 is automatically converted into a data format that can be used by the management center 200 and then sent to the management center 200. You may make it transmit. Conversely, format conversion may be performed by the management center 200.

  When the management center 200 receives the current position data (S216), the management center 200 transmits the current position data to the vehicle (in-vehicle device 100) (S217). When the vehicle receives the current position data from the management center 200 (S218), the vehicle stores the current position data in the memory 105 (S219).

  Information on the current position of the user may be acquired by communication between the vehicle and the portable terminal 401 or the PC 402. That is, the vehicle transmits a current position inquiry request to the portable terminal 401 or the PC 402, and the portable terminal 401 or PC 402 returns the current position data to the vehicle.

(Security level change notification processing)
A process for notifying the user when the distance between the vehicle and the user changes and the security level is changed accordingly will be described with reference to FIG. The security level change notification process is repeatedly executed in the in-vehicle device 100 together with other processes in a control program executed by a CPU (not shown) included in the security ECU 114. In the management center, the program stored in the server 201 is repeatedly executed together with other processes.

  In the security level determination processing (see FIG. 7), when the distance between the vehicle and the user changes and the security level is changed (S400: YES), the vehicle sends the latest (after change) security level to the management center 200. Transmit (S401). When the management center 200 receives the latest security level (S402), referring to the database A and confirming that the security level of the vehicle has been changed, the database 200 is updated and the portable terminal 401 of the user of the vehicle is updated. Alternatively, the latest security level is transmitted to the PC 402 (S403).

  When the portable terminal 401 or the PC 402 receives the latest security level from the management center 200 (S404), the portable terminal 401 or the PC 402 notifies the fact that the security level has changed by a display / speaker (not shown) (S405).

(Security level remote designation processing)
A process for arbitrarily designating a security level from the user's portable device will be described with reference to FIG. Further, this security level remote designation process is repeatedly executed together with other processes in a control program executed by a CPU (not shown) included in security ECU 114 in the vehicle. In the management center, the program stored in the server 201 is repeatedly executed together with other processes.

  First, the user of the vehicle designates a new security level S and transmits it to the management center 200 at the portable terminal 401 or the PC 402 (S300). When the management center 200 receives a new security level S designated by the user of the vehicle (S301), the management center 200 refers to the database A to confirm the ownership relationship between the user and the vehicle (S302) and is registered by the user. A new security level S designated for the vehicle (in-vehicle device 100) is transmitted (S303).

  The vehicle sets the security level SL of the vehicle based on the new security level S received from the management center 200 (S304) (S306, S309, S312, S315, S318), and performs a locking process according to the security level SL ( S307, S310, S313, S316, S319).

  The state control (S307, S310, S313, S316, S319) of the door lock 120 corresponding to the security level SL is the same as the contents (S508, S511, S514, S517, S519) described with reference to FIG. The detailed explanation is omitted.

  If the new security level S is the same as the vehicle security level SL (S317: NO), the process is terminated without changing the security level SL (S320).

  In the above-described example, the security level is designated via the management center 200. The user designates the security level by directly communicating the portable terminal 401 or the PC 402 with the vehicle without going through the management center 200. A method may be used.

  Of the security levels obtained from the security level determination process based on the schedule information and the security level determination process based on the position information, the higher one is used as the security level with priority given to safety.

  Also, the security level may be set giving priority to the convenience of the user. For example, even if the security level is level 1 and the vehicle usage time is still 15 minutes on the schedule, it may be changed to level 0 when the user is near the vehicle. Similarly, even if there is still one hour until the vehicle usage time on the schedule, it may be changed to level 1 if the user is at a distance that can reach the vehicle within 30 minutes. .

  Although the embodiments of the present invention have been described above, these are merely examples, and the present invention is not limited to these embodiments, 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.

The block diagram which shows the whole structure of a vehicle antitheft system. The flowchart for demonstrating a security level determination process from a user's positional information. The flowchart for demonstrating the detail of the process which acquires a user's positional information. The flowchart for demonstrating the process which tells a user the change of a security level. The flowchart for demonstrating the process in which a user changes a security level. The figure which shows the relationship between a security level, the cancellation | release method, abnormality determination conditions, etc. The flowchart for demonstrating a security level determination process from a user's schedule information.

Explanation of symbols

100 On-vehicle equipment 101 Perimeter monitoring sensor (state detection means, intrusion detection means)
102 Camera (state detection means, intrusion detection means)
103 Microphone (state detection means, intrusion detection means)
104 Recognition sensor (user judgment means)
105 memory (release condition setting means, intrusion detection condition setting means)
106 Alarm (notification means)
107 GPS (Parking location detection means)
109 Intrusion sensor (state detection means, intrusion detection means)
110 electronic key 114 security ECU (time calculation means, condition judgment means, intrusion judgment means, security level setting means, security level release means)
124 Alarm (notification means)
125 hazard (informing means)
126 Siren (notification means)
127 Notification device (notification means)
200 management center 201 server 400 user (user)
401 Mobile terminal (security level change means, schedule acquisition means)
402 PC (personal computer) (security level change means, schedule acquisition means)
A, B, C database

Claims (7)

A vehicle anti-theft system comprising a management center that provides a vehicle anti-theft service connected to a vehicle-mounted device for detecting theft-related matters related to vehicle theft via a communication line and having a plurality of security levels for the anti-theft of a vehicle equipped with the vehicle-mounted device. Because
Schedule acquisition means for acquiring a use schedule of the vehicle;
A time calculation means for calculating a time from a current date and time to a date and time when the vehicle included in the use schedule is next used;
Security level setting means for setting the security level based on the calculated time;
A vehicle antitheft system characterized by comprising:   The vehicle theft prevention system according to claim 1, further comprising security level changing means for a user of the vehicle to change the security level. Release condition setting means for setting a release condition for releasing the state in which the security level is set according to the set security level;
State detecting means for detecting the state of the vehicle, condition determining means for determining whether the detected vehicle state matches the release condition,
Security level release means for releasing the state in which the security level is set when the state of the detected vehicle matches the release condition;
The vehicle antitheft system according to claim 1, wherein the vehicle antitheft system is provided. Intrusion detection means for detecting intrusion into the vehicle;
Intrusion detection condition setting means for setting a condition for detecting intrusion into the vehicle according to the set security level;
The intrusion determination means for determining that the vehicle has entered the vehicle when the vehicle state matches a condition for detecting entry into the vehicle. Vehicle anti-theft system.   5. The vehicle antitheft system according to claim 4, further comprising notification means for notifying a user of the vehicle when it is determined that the vehicle has been invaded.   The vehicle theft prevention system according to claim 3, further comprising: a user determination unit that determines whether or not the vehicle is a user, wherein the release condition includes a determination that the vehicle is a user. 5. The apparatus according to claim 4, further comprising: a user determination unit that determines whether or not the user is a user of the vehicle, wherein the condition for detecting intrusion into the vehicle includes a determination that the user is not a user of the vehicle. Vehicle anti-theft system.

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