JP2007223555A - Security control device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a security control device for a vehicle capable of obtaining high security for the vehicle. <P>SOLUTION: A security control part 3 is switched between an alarm mode for operating an alarm device 4 and a standby mode for making the alarm device 4 non-active in detecting a suspicious operation for the vehicle 2. When the security control part 3 determines that a user is in a non-riding state based on an operating state of the vehicle 2, the mode is immediately switched accompanying the locking of a door, and switched to the alarm mode through an alarm preparation mode. On the other hand, when it is in an unlocking state of the door, the security control part is switched to the alarm mode through the alarm preparation mode after a predetermined standby time elapsed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicular security control device that issues a warning when a suspicious operation is performed on a vehicle when a user is absent.

  In recent years, for example, in automobiles, improvement of security functions has been demanded in order to improve anti-theft performance as well as improvement of basic performance and safety. For the purpose of improving the security function and convenience, conventionally, wireless communication is automatically performed between the portable device possessed by the user and the in-vehicle device, and the wireless communication is established. A vehicle security control system that secures high security of a vehicle by automatically locking and unlocking a door lock has been proposed (see, for example, Patent Document 1).

  In this vehicle security control system, the in-vehicle device intermittently transmits a response request signal (request signal) including a radio signal to a predetermined area around the vehicle. For this reason, when a user (driver) possessing a portable device having a communication function enters the request signal transmission area, the portable device receives the request signal. Then, when the portable device receives the request signal, it returns an ID code signal including the ID code set to itself in response to the request signal. The in-vehicle device receives this ID code signal and collates the ID code set in itself with the ID code included in the ID code signal. As a result, the vehicle control device determines that communication with the portable device has been established when the ID codes match each other, and automatically unlocks the door lock. That is, mutual communication is automatically performed between the in-vehicle device and the portable device, and the door lock is automatically unlocked or the engine can be started on the condition that the mutual communication is established. To do. This eliminates the need for complicated operations such as using a mechanical key for locking and unlocking the door, and improves the operability of the vehicle. Moreover, since locking / unlocking is controlled based on electrical verification, the security level of the vehicle is also improved.

In addition, an operation unit is provided in the portable device, and when the operation unit is operated, a locking / unlocking operation signal including the ID code and the locking / unlocking code is transmitted from the portable device. Then, when the in-vehicle device receives this locking / unlocking operation signal and collates the ID code, it locks and unlocks the door lock based on the locking / unlocking code. That is, the user can also lock and unlock the door lock by operating an operation unit provided in the portable device.
JP 2002-242503 A

  However, for illegal intrusion into the vehicle by illegally unlocking by breaking the window glass etc. in the absence of the user, even with the door lock locking and unlocking control using such electronic verification, Not necessarily effective. Therefore, it is desirable to ensure high security of the vehicle even in such a case.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicle security control device that can obtain high security of the vehicle.

  In order to solve the above-described problem, the invention according to claim 1 selectively switches between a warning mode in which an alarm device is activated upon detection of a suspicious operation on a vehicle and a normal mode in which the alarm device is inactive. In other words, when the user determines that the user is in the non-boarding state based on the operation state of the vehicle, the door lock immediately becomes the warning mode when the door lock is locked, while the door lock is unlocked. The gist of the invention is that security control means for entering the alert mode after a preset standby time has elapsed is provided.

  According to the above configuration, when the security control unit determines that the user is in the non-boarding state, the security control unit immediately switches to the alert mode when the door lock is locked. That is, in this case, the security control means determines that the user has finished using the vehicle and immediately switches to the alert mode. For this reason, the high security of a vehicle is maintained. Further, the security control means does not immediately switch to the alert mode when the door lock remains unlocked in a state where the user determines that the user is not in the boarding state, and a preset standby time has elapsed. Switch to vigilance mode later. That is, in this case, the security control means determines that there is a possibility that the user has temporarily got off the vehicle and that the user may have forgotten to lock the vehicle even though the use of the vehicle has been terminated. The warning mode is not entered, and the mode is changed to the warning mode after the waiting time has elapsed. For this reason, when a user gets off temporarily, if it is within waiting time, when boarding a vehicle again, a warning device will not be operated contrary to a user's intention. On the other hand, if the user forgets to lock the door and leaves the vehicle, the watch mode is set after the waiting time has elapsed, so the use of the vehicle by the suspicious person is suppressed and the high security of the vehicle is maintained. Is done.

  According to a second aspect of the present invention, in the vehicular security control device according to the first aspect, the security control means sets a shorter time than the standby time when the normal mode is switched to the warning mode. When the door lock is locked, the switch immediately switches to the warning preparation mode where only the transition time is kept, and when the door lock is unlocked, the door lock is unlocked after the waiting time has elapsed. The gist is to switch to the alert preparation mode.

  According to the above configuration, when the security control means switches to the warning preparation mode, for example, when the user gets off and completes the locking of the door lock, and operates the outside door handle or the like to confirm the locking, It is possible to prevent the alarm device from operating.

  As described above in detail, according to the present invention, it is possible to provide a vehicular security control device that can obtain high security of the vehicle.

Hereinafter, an embodiment embodying the present invention will be described in detail with reference to FIGS. 1 and 2.
As shown in FIG. 1, a vehicular security control device 1 includes a security control unit 3 that is mounted in a vehicle 2 and serves as security control means, and an alarm device 4 that is electrically connected to the security control unit 3. I have.

  The alarm device 4 is configured by an acoustic device such as a horn or a buzzer of the vehicle 2, a light emitting device such as a hazard lamp or a headlamp, and the like, and operates based on an operation signal input from the security control unit 3. For this reason, a warning by sound or light is emitted around the vehicle 2 by the operation of the alarm device 4.

  The security control unit 3 is electrically connected to an ignition switch 11, a key remind switch 12, a door courtesy switch 13, a trunk courtesy switch 14, an engine hood switch 15, a glass breakage detection unit 16, and an intrusion detection unit 17. .

  The ignition switch 11 is a switch provided in a key cylinder provided in the vicinity of the driver's seat in the interior of the vehicle 2, and a corresponding key is inserted and rotated into the key cylinder, so that the vehicle 2 Change the functional position of the electrical system. Specifically, the ignition switch 11 selectively switches the functional position to ignition OFF, accessory (ACC), ignition ON, and starter ON according to the key operation position. Then, the ignition switch 11 outputs the operation state to the security control unit 3.

  The key remind switch 12 is a switch for detecting whether or not a key is inserted in the key cylinder. When a key is inserted in the key cylinder, a detection signal indicating that fact is sent. Output to the security control unit 3.

The door courtesy switch 13 is a switch that detects the open / closed state of the door of the vehicle 2, and outputs a detection signal indicating the open / closed state to the security control unit 3.
The trunk courtesy switch 14 is a switch that detects the open / closed state of the trunk of the vehicle 2, and outputs a detection signal indicating the open / closed state to the security control unit 3.

The engine hood switch 15 is a switch that detects the open / closed state of the hood of the vehicle 2, and outputs a detection signal indicating the open / closed state to the security control unit 3.
The glass breakage detection unit 16 detects the glass breakage of the vehicle 2 by detecting a sound generated when the glass of the vehicle 2 is broken, for example. Specifically, the glass breakage detection unit 16 collects the sound pressure level and frequency of sound generated in the vicinity, and the collected sound becomes the sound pressure level and frequency of sound generated when the glass is broken. It is determined whether or not to approximate, and glass breakage is detected based on the result. When the glass breakage detection unit 16 determines that the glass is broken, the glass breakage detection unit 16 outputs a detection signal indicating that to the security control unit 3.

  The intrusion detection unit 17 includes, for example, an infrared sensor provided in the vehicle 2 and detects whether or not a person has entered the room of the vehicle 2. When the intrusion detection unit 17 detects the intrusion of a person into the room, the intrusion detection unit 17 outputs a detection signal indicating the fact to the security control unit 3.

  Furthermore, various control units such as an engine control unit 21 and a communication control unit 22 mounted on the vehicle 2 are network-connected to the security control unit 3 via the bus 5. In addition, a door lock device 23 that electrically locks and unlocks the door lock is electrically connected to the security control unit 3, and a lock / unlock state signal indicating the lock / unlock state of the door lock is input from the door lock device 23. It has come to be.

  The engine control unit 21 is a computer unit that performs fuel injection control, ignition timing control, and the like, and outputs a complete explosion signal via the bus 5 when the engine is driven. For this reason, various control units including the security control unit 3 can recognize the driving state of the engine based on the presence or absence of the input of the complete explosion signal.

  The communication control unit 22 is a computer unit configured to be able to receive a radio signal (locking / unlocking operation signal) transmitted from the portable device 31. When receiving the locking / unlocking operation signal, the communication control unit 22 corresponds to the locking / unlocking operation signal. An electronic verification process is performed to determine whether or not the data is transmitted from the portable device 31. Then, when the electronic verification is established, the communication control unit 22 outputs a verification establishment signal indicating that fact to the security control unit 3 and also opens the door based on the locking code or the unlocking code included in the locking / unlocking operation signal. A lock signal or an unlock signal is output to the lock device 23 to lock and unlock the door lock. For this reason, the security control unit 3 can recognize the lock / unlock state of the door lock based on the lock / unlock state signal from the door lock device 23 and communicate with the portable device 31 based on the presence / absence of the input of the verification establishment signal. It becomes possible to recognize whether or not the door lock has been locked or unlocked by communication with the control unit 22.

  The security control unit 3 is configured by a computer unit including a CPU, a ROM, a RAM, and the like (not shown). As shown in FIG. 2, the security control unit 3 is selectively switched to “standby mode”, “alert preparation mode”, “alert mode”, “entry delay mode”, and “alarm mode”. Yes. Specifically, the security control unit 3 recognizes whether or not an occupant is boarding the vehicle 2 based on detection signals from the switches 11 to 15, and based on detection signals from the glass breakage detection unit 16 and the intrusion detection unit 17. It recognizes whether or not a person has entered the vehicle 2. The security control unit 3 detects the detection signals from these switches 11 to 15, the detection signals from both detection units 16 and 17, the input signals from various control units via the bus 5, and the input from the door lock device 23. Based on the signal, the transition operation of each mode is performed. Therefore, the mode transition operation performed by the security control unit 3 will be described with reference to the state transition diagram shown in FIG.

<Mode transition operation>
As shown in FIG. 2, the security control unit 3 is normally set to a standby mode (normal mode). When a preset transition condition is established in this standby mode, the security control unit 3 switches to the alert preparation mode as indicated by an arrow A in FIG. In the present embodiment, that the key is not inserted into the key cylinder, the door and the trunk are closed, and the bonnet is closed, the key remind switch 12, the door courtesy switch 13, the trunk Transition conditions are determined by the security control unit 3 based on detection signals from the courtesy switch 14 and the engine hood switch 15. The security control unit 3 immediately switches to the warning preparation mode when a lock / unlock state signal indicating that the door lock is locked is input from the door lock device 23 in a state in which such a transition condition is satisfied. .

  Further, the security control unit 3 does not receive the unlocking / unlocking state signal indicating that the door lock is in the locked state from the door lock device 23 in a state where the transition condition is satisfied, that is, the door lock remains in the unlocked state. In this case, after a waiting time set in advance after the transition condition is satisfied, the mode is switched to the warning preparation mode. In this embodiment, the standby time is set to about 5 minutes. If the door is locked during this waiting time, the security control unit 3 switches to the alert preparation mode at that time. Incidentally, this waiting time is not limited to 5 minutes, and may be freely set by the user, for example.

That is, after the transition condition is established, the security control unit 3 switches from the standby mode to the alert preparation mode in a different manner depending on whether the door lock is locked or not.
In the alert preparation mode, the security control unit 3 determines that the door has been opened, the trunk has been opened, the hood has been opened, and the key has been turned on based on various detection signals. When it is determined that at least one of the insertion has been made, the standby mode is again switched as indicated by an arrow B in FIG. On the other hand, when the preset transition time (for example, 30 seconds) elapses without making these determinations after switching to the alert preparation mode, the security control unit 3 displays the alert mode as indicated by an arrow C in FIG. Switch to. That is, this warning preparation mode plays a role like an intermediate mode that shifts from the standby mode to the warning mode, and when the transition condition is not satisfied in this warning preparation mode, it switches to the standby mode, When the transition time elapses while the transition condition is satisfied, the mode is switched to the alert mode.

  The security mode is a mode for monitoring the presence or absence of a suspicious operation on the vehicle 2. In this security mode, the security control unit 3 receives a verification establishment signal from the communication control unit 22 via the bus 5, and the door lock device 23. When a lock / unlock state signal indicating that the door lock has been unlocked is input, the warning mode is canceled and the standby mode is restored as indicated by an arrow D in FIG. That is, when the unlocking operation of the door lock based on communication between the portable device 31 and the communication control unit 22 is performed in the alert mode, the security control unit 3 cancels the alert mode and returns to the standby mode. In addition, the security control unit 3 returns from the warning mode to the standby mode even when the key is inserted into the key cylinder and the ignition switch is switched to the ACC state or the ignition ON state. That is, the security control unit 3 considers the case where the vehicle 2 is in a warning mode when an occupant is present and the key is inserted into the key cylinder regardless of whether the door lock is unlocked or not. Even when the state is switched to the ACC state or the ignition ON state, the standby mode is restored.

  On the other hand, in the alert mode, the security control unit 3 receives a detection signal indicating that the trunk is in the open state, the hood is in the open state, or that the window glass is broken from the glass breakage detection unit 16. And at least one of the detection signal indicating that a person has entered the room from the intrusion detection unit 17 is determined, as shown by an arrow E in FIG. Switch from mode to alarm mode. And if it transfers to this alarm mode, the security control part 3 will output the operation signal with respect to the alarm device 4, operate this alarm device 4, and will emit a warning sound and warning light to the circumference | surroundings to vehicle 2 Announces that an abnormality has occurred.

  In such an alarm mode, the security control unit 3 receives a verification establishment signal from the communication control unit 22 via the bus 5, and also receives an unlocking / unlocking state signal indicating that the door lock has been unlocked from the door lock device 23. If the key is inserted or the key is inserted into the key cylinder and the ignition switch is switched to the ACC state or the ignition ON state, the mode is switched to the standby mode as indicated by an arrow F in FIG. In the alarm mode, when a preset alarm time (for example, 27.5 seconds) elapses, the security control unit 3 switches to the alarm mode as indicated by an arrow G in FIG.

  By the way, in the alert mode, the security control unit 3 receives a lock / unlock state signal indicating that the door lock has been unlocked from the door lock device 23 in a state where the verification establishment signal is not input from the communication control unit 22. That is, when the door lock is unlocked by a method other than the communication between the portable device 31 and the communication control unit 22, the door is unlocked by a suspicious person by a picking operation or the like when the door lock is unlocked by an authorized user. The case where the lock is unlocked is considered. For this reason, in this embodiment, in such a case, the security control unit 3 switches from the alert mode to the entry delay mode as indicated by an arrow H in FIG. In this entry delay mode, the security control unit 3 receives a verification establishment signal from the communication control unit 22 via the bus 5 within a preset delay time (for example, 6 seconds), and the door lock device 23. When an unlocking / unlocking state signal indicating that the door lock has been unlocked is input, or when the key is inserted into the key cylinder and the ignition switch is switched to the ACC state or the ignition ON state, As shown by the arrow I in FIG. On the other hand, in this entry delay mode, when the delay time elapses without satisfying the condition, the security control unit 3 switches to the alarm mode as indicated by an arrow J in FIG. That is, when the operation of the vehicle 2 using the authorized portable device 31 or the authorized key is performed within the delay time, the security control unit 3 determines that the operation is performed by the authorized user. Then, the warning mode is canceled without operating the warning device 4. For this reason, when the vehicle 2 is operated by the authorized user, the alarm device 4 is suppressed from being activated.

  The security control unit 3 can be set to a mode fixed state in which the above-described standby mode does not transit to another mode by setting with a setting switch (not shown). That is, when the authorized user feels that the operation of the alarm device 4 is unnecessary, the security control unit 3 can always be set to the standby mode by the setting switch.

Therefore, according to the present embodiment, the following effects can be obtained.
(1) When the security control unit 3 determines that the user is not in the boarding state with respect to the vehicle 2, the security control unit 3 immediately switches to the alert preparation mode when the door lock is locked. That is, in this case, the security control unit 3 determines that the user has finished using the vehicle 2 and immediately switches to the alert preparation mode. For this reason, the high security of the vehicle 2 is maintained. In addition, when the door lock remains unlocked in a state where the user determines that the user is not in the boarding state, the security control unit 3 does not immediately switch to the alert preparation mode, but sets the standby time set in advance. After a lapse, it switches to the alert preparation mode. That is, in this case, the security control unit 3 determines that there is a possibility that the user has temporarily got off the vehicle and that the user may have forgotten to lock the vehicle 2 even after the use of the vehicle 2 has ended. The inside is not in a warning preparation mode, and switches to the warning preparation mode after the waiting time has elapsed. Therefore, when the user gets off the vehicle temporarily, the alarm device 4 is activated even if the condition for shifting to the alarm mode is satisfied by the user getting on the vehicle 2 again within the standby time. There is no end. That is, the alarm device 4 is not activated against the user's intention. On the other hand, if the user forgets to lock the door and leaves the vehicle 2, the use of the vehicle 2 by a suspicious person is suppressed because the warning mode is entered after the standby time has elapsed. And high security of the vehicle 2 can be ensured.

  (2) The security control unit 3 is configured to switch from the standby mode to the warning mode through the warning preparation mode regardless of whether the door lock is locked or the door lock remains unlocked. . For this reason, for example, when the user gets off the door and completes the locking of the door lock, the alarm device is activated when the outside door handle or the like is operated to confirm the locking or when the user gets on the first board after getting off the vehicle. Can be prevented.

In addition, you may change embodiment of this invention as follows.
In the embodiment, when the door lock is locked after the transition condition for switching from the standby mode to the alert preparation mode is established, the security control unit 3 performs the locking operation with the portable device 31 and the communication control unit. When the communication is performed based on the communication with the device 22, in any case where the communication is performed using a machine key or the like instead of the communication, the operation is switched to the alert mode through the alert preparation mode. . However, the security control unit 3 switches to a warning preparation mode when the door lock is locked based on communication between the portable device 31 and the communication control unit 22, but the door lock is locked by a mechanical key or the like. When it is performed, it may be configured to switch to the warning mode without switching to the warning preparation mode. Not limited to this, the security control unit 3 switches to a warning mode when the door lock is locked based on the communication between the portable device 31 and the communication control unit 22, and the door lock is activated by a mechanical key or the like. When locking is performed, the mode may be switched to the alert mode through the alert preparation mode. That is, the security control unit 3 may perform different mode transitions depending on how the door lock is locked.

  In addition, when the door lock remains in the unlocked state after the transition condition is satisfied, the security control unit 3 is switched to the alert mode after being temporarily switched to the alert preparation mode. However, in such a case, the security control unit 3 may directly switch to the alert mode without switching to the alert preparation mode.

-The alert preparation mode and the entry delay mode are not necessarily set, and one or both of them may be omitted.
Next, in addition to the technical ideas described in the claims, the technical ideas grasped by the embodiment described above are listed below.

  (1) In the vehicular security control device according to claim 1, the security control unit is set with a warning preparation mode for staying for the waiting time when the normal mode is switched to the warning mode. When the control unit determines that the user is in the non-boarding state, the control unit immediately enters the warning mode when the door lock is locked, while the control unit sets the warning preparation mode when the door lock is unlocked. After that, be in alert mode.

  (2) In the vehicle security control device according to any one of claims 1 and 2 and (1), the security control means, when the door lock based on electronic verification is performed, Immediately switch to alert mode or alert preparation mode.

The block diagram which shows roughly the structure of the security control apparatus for vehicles of one Embodiment of this invention. The figure which shows typically the mode transition of the security control means of the embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vehicle security control apparatus, 2 ... Vehicle, 3 ... Security control part as security control means, 4 ... Alarm apparatus.

Claims (2)

  It selectively switches between a warning mode that activates an alarm device when a suspicious operation on the vehicle is detected and a normal mode that deactivates the alarm device, and determines that the user is in a non-boarding state based on the operation state of the vehicle In this case, when the door lock is locked, the security control means immediately enters the alert mode, while in the unlocked state of the door lock, the security control means enters the alert mode after a preset waiting time has elapsed. A vehicle security control apparatus comprising:   When the security control means switches from the normal mode to the warning mode, the security control means switches to a warning preparation mode in which the transition time set for a shorter time than the waiting time is set, and when the door lock is locked. 2. The vehicle security control according to claim 1, wherein the vehicle security control mode is immediately switched to the warning preparation mode, and when the door lock is unlocked, the security preparation mode is switched to after the waiting time has elapsed. apparatus.

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