JP2007118897A - Vehicular antitheft alarm device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular antitheft alarm device capable of setting various kinds of security modes even when any setting switch or the like is provided on a portable machine or a vehicular antitheft alarm device. <P>SOLUTION: The vehicular antitheft alarm device 10 has an abnormality determination unit 14b which determines presence/absence of any abnormality based on the sensor signal input from a sensor, and generates the alarm output when an abnormality is determined. In this case, the vehicular antitheft alarm device comprises a detection means which is connected to a lock driving motor 4 to lock and unlock a door provided on a vehicle to determine whether or not the door is locked from a state of the connected lock driving motor, and a plurality of security mode setting units 14a capable of setting the security mode in which the abnormality determination means is in a security mode. A security mode control unit determines the security mode according to the history of the change of the state of an ACC power supply of the vehicle before the detection means determines that the door is locked. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a burglar alarm device for a vehicle.

  There are various types of vehicle burglar alarm devices (security devices). When a new vehicle is built and a burglar alarm device prepared for the vehicle type is built and delivered, as referred to as a manufacturer option, etc. In some cases, a user of a vehicle in which no burglar alarm device is installed purchases various burglar alarm devices and attaches them later, and in fact, there are many cases of the latter retrofit. The security state (arm) and the non-security state (disarm) of the vehicle theft alarm device are usually performed using a dedicated remote controller (mobile device). In other words, the user carrying the remote control notifies the command for setting the security / non-security state to the in-vehicle device mounted on the vehicle by pressing an operation button provided on the remote control, and the notification is made. The in-vehicle device that has been received performs switching setting between a security state in which a vehicle theft alarm (monitoring) is performed and a non-security state in which monitoring is not performed. For this reason, a portable device that is a transmitter for issuing such a command and an in-vehicle device that receives a signal from the portable device are required, which is an impediment to cost reduction of the product. In addition, the in-vehicle device must always be in a receiving state, and there is a problem that the battery is consumed when the vehicle is not used for a long time.

  On the other hand, recent general vehicles employ a keyless entry system (keyless entry). This keyless entry system unlocks / locks the door lock of a vehicle when it is operated / removed with a remote control or with a portable device. Therefore, it is necessary to carry both the portable device for the burglar alarm device and the portable device for the keyless entry system, which not only impairs portability, but also the burglar alarm device for the vehicle and the keyless entry system operate independently. (Basically, when a vehicle burglar alarm device is installed later, each device operates independently), it is necessary to operate two portable devices when getting on and off, which is cumbersome.

  If an operation is mistaken (only one portable device is operated, the order of operations is wrong, etc.), a malfunction may be caused. That is, for example, when unlocking by keyless entry is performed when the vehicle burglar alarm device is in a guard state, it is detected that various sensors and door opening sensors of the vehicle are abnormal and an alarm is issued. Occurs.

  That is, when a vehicle burglar alarm device is installed as a manufacturer option, and the keyless entry system is also installed as a standard or manufacturer option, the control information can be used mutually. When the door lock is automatically operated or when the door is locked, the security state is triggered by this, and when the door lock is unlocked by the function of the keyless entry system, the burglar alarm device can be controlled to be switched to the non-security state.

  However, when a burglar alarm device for a vehicle is retrofitted, the burglar alarm device needs to be configured to detect unlocking by keyless entry in combination with various vehicles. In order to realize this, it is necessary to prepare a receiver for keyless entry suitable for each vehicle, which is not realistic as a method adopted by a retrofit vehicle burglar alarm device.

In such a situation, the portable device of the burglar alarm device is abolished, and the driving state of the door drive device by the keyless entry system is input to the burglar alarm device, so that the burglar alarm device is also set when the vehicle door is locked. It can be considered that when the door is unlocked, the burglar alarm device is reset to a non-monitoring state when the door is unlocked. Such an idea has already been disclosed in Patent Document 1.
JP-A-6-144158

  However, when the portable device for the burglar alarm device is abolished as described above, the following new problem occurs. When setting the security conditions of the burglar alarm device, etc., it will usually be done by setting a setting switch etc. on the portable device or the burglar alarm device, but since there is no portable device, there is no portable device for the burglar alarm device, Inevitably, a setting switch or the like is provided in the burglar alarm device (on-vehicle device).

  Then, considering the operability of such setting switches, etc., the burglar alarm device will be installed in a relatively conspicuous place in the car, and when the bandits enter the car, the burglar alarm device is operated to stop the operation There is a high security risk. On the other hand, when the burglar alarm device is installed in a deep place in the vehicle, the above problem is solved, but the setting switch and the like cannot be easily operated once installed.

  In addition, when the burglar alarm device and the setting switch are separated and connected with a cable, etc., and the burglar alarm device is installed in a deep place in the vehicle, the setting can be changed relatively easily even after the burglar alarm device is set once. Is possible. However, when such a configuration is adopted, it becomes easier for the bandits to find the burglar alarm device installed in the vehicle by following the cable, and the problem described first remains.

  The present invention solves the above-described problems, and its purpose is to enable various security modes to be set even if a setting switch or the like is not provided in the theft alarm device (on-vehicle device). To provide a burglar alarm device for a vehicle capable of improving safety and further reducing costs even if it is a burglar alarm device retrofitted to a car that is in a guarded state or a non-guarded state depending on the state of a keyless entry system. It is in.

  In order to achieve the above-described object, the vehicle burglar alarm device according to the present invention includes an abnormality determination unit that determines whether or not there is an abnormality based on the input sensor signal and outputs an alarm output when the abnormality is determined. It is a vehicle burglar alarm device connected to a drive unit or drive control unit for locking / unlocking a door provided in the vehicle, and whether or not it is locked at least from the state of the connected drive unit or drive control unit Detecting means for performing the determination, and a security mode setting means capable of setting a plurality of security modes when the abnormality determination unit is in a security state, and the security mode control unit is configured such that the detection unit is locked. The security mode is determined based on the history of the state change of the ACC power supply of the vehicle until the determination.

  According to the present invention, the setting of the burglar alarm device determines the security mode based on the history of changes in the state of the ACC power supply of the vehicle, so that it is not necessary to provide a setting switch or the like in the burglar alarm device. Since the car engine key is used by a legitimate user, the voltage change pattern (combination of changes in the power supply state) of the key output (ACC) a predetermined time before the lock detection is detected, and accordingly Various settings can be made. As an example, it is assumed that there is a history such as “ACC is ON → ACC is OFF → locked”. In this case, if the ACC is turned off, the engine is turned off. After that, when the locking operation is performed, the security setting (security mode) is set to the basic setting state, for example, all inputs from connected sensors such as vibration sensor, Doppler sensor, door open sensor, etc. Set the sensitivity to maximum.

  Further, it is assumed that there is a history such as “ACC is ON → ACC is OFF → ACC is ON → ACC is OFF → locked”. In this case, the security setting (security mode) is set to another security mode different from the basic setting by performing an intentional operation as described above within a predetermined time from when the engine is turned off until locking. As another security mode, when a plurality of sensors are connected, input from only some sensors may be validated or sensitivity may be changed. For example, if you park temporarily in a busy place such as a convenience store, people may pass around the vehicle or the vehicle may vibrate even if it is not related to theft. By enabling only a sensor that detects that a person has entered the vehicle, such as a door open sensor, an alarm can be issued in an abnormal state while suppressing the occurrence of a false alarm. It should be noted that the sensor input is not validated when the operation of the sensor itself is turned off, or when the sensor is operating and the signal from the sensor is input to the burglar alarm device, but the input signal is ignored ( (Not used for judgment).

  As described above, it has been shown that an arbitrary security state is set by a change in the power supply state from when the ACC is switched from ON to OFF from a predetermined time before the locking is performed. The case where the time is not set is also included in the present invention. In the above example, the ACC is turned ON → OFF up to the second repetition. However, it is possible to select a security state in which a predetermined setting is performed by an arbitrary number of repetitions of ACC ON → OFF. it can.

  Furthermore, since the security mode of the burglar alarm device can be determined based on the history of changes in ACC, no operation unit is provided in the burglar alarm device main body or alarm unit, and even when no dedicated portable device exists. A mode can be set.

  The detection means is connected to a drive detection means for determining locking / unlocking from the state of the connected drive section or drive control section, and to a hazard lamp or hazard control section provided in the vehicle, and the hazard lamp is turned on. A lighting detection means for detecting a state; and a locking state detection means for determining whether the unlocking / locking is normal or not based on the output of the driving detection means and the output of the lighting detection means. When the determination result of the means is a regular unlocking, the abnormality determination means is shifted to a non-guard state, and when the determination result is a regular lock, the abnormality determination means is shifted to a security state. You may do it.

  In addition, the history of the state change of the ACC power supply may use the number of ON / OFF changes, or may use the number of times that the ACC power supply is ON or less than the set time. It can ask for.

  As described above, in the present invention, since the security mode of the burglar alarm device can be determined based on the history of ACC change, a dedicated mobile phone can be used without providing an operation unit such as a setting switch in the burglar alarm device main body or alarm unit. Even when no aircraft is present, the security mode can be set. As a result, even in the case of a vehicle burglar alarm device retrofitted to a car that is in a guarded state or a non-guarded state depending on the state of a genuine keyless entry system, it is possible to improve security and further reduce costs.

  1 and 2 show a preferred embodiment of the present invention. The vehicle burglar alarm device 10 according to the present embodiment includes a drive detection unit 11, a lighting detection unit 12, a locked state detection unit 13, and a theft alarm unit 14. The vehicle burglar alarm device 10 is mounted on a vehicle. And the presence or absence of abnormality is judged based on the information provided from the equipment with which the vehicle is equipped, the other apparatus mounted in the vehicle, etc., and when abnormality is detected, the alarm unit 17 is warned. Output. Further, the security state and the non-security state of the vehicle burglar alarm device 10 are switched based on the input information.

  Before describing the internal processing unit of the vehicle burglar alarm device 10, external equipment and the like will be described. The keyless entry system includes a keyless portable device 1 possessed by a user and a receiver 2 that receives a control signal mounted on a vehicle. The receiver 2 determines whether the door lock is to be locked or unlocked based on the control signal received from the portable device 1, and gives a lock / unlock signal to the motor control unit 3 based on the determination result. The motor control unit 3 performs locking and unlocking by driving the lock control motor 4 acquired from the receiver 2 forward and reverse. In addition, the motor control unit 3 receives an unlocking / locking control signal based on a key operation by a mechanical key, and drives the lock control motor 4 to rotate forward or backward according to the content of the control signal to lock the door. It is designed to be unlocked / locked.

  The keyless portable device 1 is provided with a locking switch and an unlocking switch independently, and the lock / unlock control signal sent from the keyless portable device 1 includes a locking command and an unlocking command. When there is a distinction, there is one unlocking / locking switch, one type of control signal is sent from the keyless portable device 1, and the receiver 2 switches the current state when receiving such a control signal There is a case to control. In other words, an unlocking command is issued when it is currently locked, and a locking command is issued when it is unlocked.

  Further, the unlocking / locking signal sent from the keyless portable device 1 is not limited to the signal transmitted based on the switch operation as described above, and the control signal is periodically transmitted to the receiver 2. Determines whether the user who has the keyless portable device 1 has approached or separated from the vehicle based on the received intensity of the received control signal, etc., and unlocks when the vehicle approaches and separates from the vehicle. Some devices automatically control opening and closing to lock them.

  Further, the keyless entry system transmits identification information for identifying matters such as an ID code from the keyless portable device 1, and the receiver 2 receives the corresponding regular identification information. In some cases, control is performed such that the current locking / unlocking state is switched when a switch installed in the area is pressed.

  The hazard lamp 7 is installed in the vehicle, but the hazard control unit 6 controls the lighting state of the hazard lamp 7. That is, when the hazard switch 5 installed in the vehicle is pressed, the hazard control unit 6 causes the hazard lamp 7 to blink at regular intervals. This informs the surroundings that the vehicle is parked / stopped. This device is mounted on a normal vehicle.

  Recently, in order to notify that the door lock has been locked / unlocked in the keyless entry system, the user has locked / unlocked by flashing the hazard lamp 7 one or more times. Some have a function to notify this. In order to deal with such a system, the hazard control unit 3 causes the hazard lamp 7 to blink a set number of times in accordance with a notification (control signal) from the receiver (on-vehicle device) 2 or the like.

  On the other hand, the vehicle theft alarm device 10 includes an ACC (accessory) power switch 15 of the vehicle, various sensors 16 for detecting the presence or absence of an abnormality as an external device, and an alarm unit 17 for notifying the outside in the event of an abnormality. It is connected. Further, it is connected to a battery 18 of the vehicle, and is configured to be driven by receiving power supply from the battery 18.

  This sensor 16 is a sensor for detecting a theft or other abnormality, and for example, a vibration sensor, an acceleration sensor, a sound pressure sensor, a Doppler sensor, and other various sensors can be used. The vibration sensor and the acceleration sensor can detect a vibration / impact on the vehicle. The sound pressure sensor can detect a change in pressure in the vehicle as the door is opened and closed, and can estimate the intrusion of a person. The Doppler sensor detects the approach / separation of a person, and when a third party is wandering around the vehicle, it can be estimated that the act is abnormal (eg, the inside of the vehicle is colored outside). 1 and 2, two sensors 16 are shown, but it is needless to say that one sensor or three or more sensors 16 may be installed. Further, the sensors are not limited to those exemplified above, and various sensors can be used.

  Next, the internal structure of the vehicle burglar alarm device 10 will be described. The drive detection unit 11 is wired at both ends of the lock control motor 4 that drives the door lock of the vehicle, detects the rotation direction of the motor from the change in voltage between the both ends, determines the presence / absence of locking / unlocking, and the determination The result is passed to the lock state detection unit 13. Which of the two ends of the lock control motor 4 is locked or unlocked is determined by, for example, providing a switch in the drive detection unit 11 and instructing the keyless entry system to unlock or lock while pressing the switch. The voltage generation state at that time may be used for determination. In the present embodiment, drive detection units are wired at both ends of the motor, but may be wired to a motor control unit or the like that can grasp the operation status of other motors.

  The lighting detection unit 12 is connected to the hazard lamp 7 and monitors its voltage to detect the lighting state of the hazard lamp (whether it is lit or not), and passes the detection result to the lock state detection unit 13.

  The locking state detection unit 13 determines whether the locking / unlocking is based on the keyless entry system or the like, or the other locking / unlocking is based on the outputs of the drive detection unit 11 and the lighting detection unit 12. That is, when door control is performed by a genuine keyless entry system that is equipped as standard in recent vehicles, the result of door control is notified by the number of blinks of the hazard lamp 7. For example, it lights twice when locked, and lights once when unlocked. And the timing which the hazard lamp 7 lights is also prescribed | regulated. Therefore, the lock state detection unit 13 detects the door control state by the genuine keyless entry system from the operation of the door control members (the lock control motor 4 and the motor control unit 3) and the lighting (flashing) of the hazard.

  That is, for example, as shown in FIG. 3, when the lighting of the hazard lamp 7 is detected within a predetermined time (T1) from when it is determined that the drive detection unit 11 is locked or unlocked, the lock state detection unit 13 is genuine. Judge as locking / unlocking by keyless entry system.

  On the other hand, since the hazard lamp does not light in the case of unlocking due to an unauthorized operation (operation such as picking or concentrating door switch inside the car), the drive detection unit 11 detects unlocking as shown in FIG. Even if a predetermined time (T1) elapses, the lighting detection unit 12 does not detect the lighting of the hazard lamp 7. In such a case, the locking state detection unit 13 determines that unlocking has occurred without using the genuine keyless entry system.

  Since the predetermined time T1 varies depending on the vehicle type, an appropriate window T2 is appropriately provided in the locking state determination unit 13, and if the hazard lamp 7 does not light within the range of T2, it is an unauthorized unlocking by picking or the like. It may be determined. Of course, the method for detecting locking / unlocking based on the genuine keyless entry system is not limited to the above-described embodiment.

  With the above configuration, it is possible to distinguish between unlocking based on a genuine keyless entry system and unauthorized unlocking by picking or the like. Therefore, in the case of regular unlocking, it can be automatically set to a non-security state (reset: disarm) to prevent unnecessary alarms. Conversely, when locking based on a genuine keyless entry system is performed, the security state (set: arm) is automatically set. Note that the retrofit keyless entry system can cope with the same mechanism if it is equipped with an optional function. Such a function is realized by a theft alarm unit 14 described later.

  This eliminates the need for a portable device dedicated to the burglar alarm device and allows the user to carry only the portable device for the keyless entry system. That is, there is no need to hold a plurality of portable devices, which is convenient.

  As shown in FIG. 2, the theft alarm unit 14 includes a security state control unit 14 c that places the abnormality determination unit 14 b in a guarded / unguarded state in synchronization with locking / unlocking using a genuine keyless entry system, and an ACC power source. A security state control unit 14a for determining a security mode of the abnormality determination unit 14b (selecting an input sensor that is effectively used for abnormality determination) and a security state control unit 14c from the voltage state change history; An abnormality determination unit 14b that performs abnormality determination from the output and the output of the security mode control unit 14a and causes the alarm unit 17 to generate an alarm is provided.

  When locking / unlocking information by the genuine keyless entry system is output from the locking state detection unit 11, the security state control unit 14c controls the abnormality determination unit 14b in synchronization with the output, and performs an abnormality determination to detect an abnormality. Set to the guarded state that issues an alarm or the non-guarded state that does not judge abnormality.

  The abnormality determination unit 14b determines whether or not there is an abnormality based on a signal from the sensor 16 in the guard state, and when it is determined as abnormal, operates the alarm unit 17 to give a predetermined alarm. Here, in the present embodiment, a plurality (two types) of alarm modes are provided as abnormality determination rules. As a plurality of alarm modes, the sensor to be used can be changed or the sensitivity of the sensor can be changed. For example, when the sensor 1 is a Doppler sensor, the sensor 2 is a vibration sensor, and there are the first mode and the second mode as the types of security mode, the following security status is obtained. There is something to show.

First Embodiment The sensitivity of the microwave sensor and the sensitivity of the vibration sensor are maximized. For example, this is a mode suitable for reliably detecting an abnormality when the vehicle is parked in a parking lot at home where there is little vibration and traffic.

Second Mode The sensitivity of the microwave sensor is lowered to such an extent that only the inside of the vehicle is detected, and the sensitivity of the vibration sensor is set to 0 (the vibration sensor is disabled). This is a mode suitable for parking in a place where there is a lot of traffic of a large vehicle and where there is a lot of traffic around the vehicle (for example, a convenience store along a national road). In other words, when parked at such a place, the vibration applied to the vehicle in a steady state becomes relatively large, and if it is set to the first mode described above, the output of the vibration sensor becomes a large value and may be erroneously determined to be abnormal. There is. Further, since there is a traffic of people around the vehicle in a natural state, the Doppler sensor may detect such a person (such as a person who simply enters or exits a convenience store) and may generate a false alarm. Therefore, by adopting the second mode, it is possible to suppress the occurrence of the false alarm described above and to reliably detect a bandit entering the vehicle and issue a correct alarm.

  In addition, when sensitivity is set according to the case where the vehicle is temporarily stopped in the town as in the second mode, when the vehicle is parked at the parking lot at that setting, an alarm is issued only when the bandits enter the vehicle. Therefore, it becomes impossible to detect an action before entering the vehicle such as the approach of a bandit or the vibration of the vehicle, and to issue an alarm. However, as described above, by switching between the two modes, an appropriate alarm can be issued at each location, and an erroneous alarm can be prevented from occurring.

  The security mode control unit 14a performs setting switching of the mode. That is, the security mode control unit 14a monitors the ACC output voltage controlled (ON / OFF) by the ACC power switch 15 of the automobile, and shifts to the security state according to the change history (the lock state detection unit 11 is keyless). When it is determined that the entry system is locked), the security mode corresponds to the history of changes made before that.

  As a specific example, as shown in FIG. 5A, the security mode control unit 14a is locked by a genuine keyless entry system after the ACC (accessory) is turned off from the on state. In this case, the first mode is set, and as shown in FIG. 5 (b), after the ACC (accessory) is turned off from the ON state, the genuine keyless is turned on again after going from ON to OFF again. When there is locking by the entry system, control is performed so as to set the second mode.

  The monitoring of the history of the change in the ACC output voltage is, for example, receiving a signal from the locking state detection unit 13 indicating that the ACC has been locked by a genuine keyless entry system when the ACC is reversed from ON to OFF. And whether or not the ACC output voltage changes (OFF → ON → OFF). And when the signal to the effect that there existed the lock | rock before the ACC output voltage changed was received, it sets to a 1st aspect. In addition, the change of the ACC output voltage and the appearance order of the signal indicating that the lock has been performed are the same as the normal processing at the time of getting off the vehicle after traveling. Accordingly, the first mode is set by performing a process of normally turning off the engine and getting off the vehicle without being particularly conscious of the user.

  On the other hand, after ACC is inverted from ON to OFF, before receiving a signal indicating that the ACC is locked, it is detected that ACC is inverted once and then ACC is inverted again. If accepted, it is set to the second mode.

  Further, for example, temporary storage means such as a ring buffer memory for storing ACC output voltage data (1/0 for ON / OFF) for a predetermined time (T3) or longer is provided, and the security mode control unit 14a Acquires the value of the ACC output voltage (actually ON / OFF) at a predetermined sampling time and stores it in the temporary storage means. Thereby, history data for a predetermined time (T3) is always stored.

  When the lock state detection unit 13 determines that the lock is based on the genuine keyless entry system, the security mode control unit 14 accesses the temporary storage unit, and the predetermined time T3 from the time when the determination is made The history of ACC change is acquired, it is determined whether it corresponds to the first mode or the second mode, and the security mode is set for the abnormality determination unit 14b based on the determination result.

  Contrary to the above, in the unlocked state, the security mode control unit 14a starts the timer when the ACC first reverses from ON to OFF, and monitors whether or not the ACC has changed. Then, when a signal indicating that locking is received before the predetermined time T3 has elapsed, the security mode may be determined from the history of changes in ACC up to that time.

  Furthermore, in the above-described example, the second mode is limited to the case where ACC is ON → OFF → ON → OFF → regular locking, but when there is regular locking after ON → OFF is repeated a plurality of times. It is also good.

  Furthermore, as a simple determination method, counting may be performed only when the time during which ACC is ON in a non-guard state is within a predetermined time. That is, in the case of FIG. 5A by setting the predetermined time to a relatively short time (the time required for performing the act of returning from OFF after being turned ON consciously: for example, 1 second to several seconds). However, the corresponding ON pulse does not exist and becomes 0, but in the case of FIG. 5B, it is counted once. Therefore, when the number of applicable pulses (ON) is 0 and the lock is properly locked, the first mode is set. When the number of applicable pulses (ON) is 1 and the lock is properly locked, The second mode is set. Of course, as described above, the number of times of turning ON is an example, and it may be two times or more, or simply N times or more (N is an integer of 1 or more).

  In other words, in normal operation, when the engine is started, the ACC remains ON after changing from OFF to ON, and when the engine stops and gets off, the ACC changes from ON to OFF. After that, it remains OFF and the ACC is not turned on for a short time. Therefore, as described above, when the ACC is turned on for a predetermined time, the user consciously turns on the ACC power switch. This is because it can be determined that the operation has been performed and it can be estimated that the security mode setting operation input.

  In each example described above, two modes are alternatively selected. However, three or more modes are prepared, and the number of times of ON → OFF and the number of times of ON in a short time is 3 Any one of two or more modes may be switched.

  When the security mode is determined by the security mode control unit 14a, when there is a warning LED or the like, it is preferable to indicate in which mode it is operating by the number of blinks, or to notify by a buzzer sound or the like.

  In addition, since the ACC that is turned on and off by the key is used as a power source for electrical components such as an audio device, even when the ACC is turned off by the key, the voltage provided by the electrical component may drop sharply. If the operation with the key is performed early, it may not be possible to detect a change in voltage state (1 or 0). Therefore, it is preferable to obtain a change in voltage by providing an appropriate threshold.

  As described above, since the security mode of the burglar alarm device can be determined based on the history of changes in ACC, the security mode of the security mode even if there is no dedicated portable device without providing an operation unit in the burglar alarm device main body or alarm unit, etc. Settings can be made.

It is a figure which shows one suitable embodiment of this invention. It is a figure which shows one suitable embodiment of this invention. It is a figure explaining an effect. It is a figure explaining an effect. It is a figure explaining an effect.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile device 2 Receiver 3 Motor control part 4 Lock control motor 5 Hazard switch 6 Hazard control part 7 Hazard lamp 10 Vehicle burglar alarm device 11 Drive detection part 12 Illumination detection part 13 Locking state detection part 14 Theft alarm part 14a Security mode Control unit 14b Abnormality determination unit 14c Security state control unit 15 ACC power switch 16 Sensor 17 Alarm unit 18 Battery

Claims (4)

In the vehicle burglar alarm device comprising an abnormality determining means for determining whether there is an abnormality based on the input sensor signal, and issuing an alarm output when it is determined as abnormal,
A detecting means connected to a drive unit or drive control unit for locking / unlocking a door provided in the vehicle, and determining whether or not it is locked at least from the state of the connected drive unit or drive control unit;
A security mode setting unit capable of setting a plurality of security modes when the abnormality determination unit is in a security state, and
The vehicle burglar alarm device, wherein the security mode control unit determines a security mode based on a history of a change in the state of the ACC power supply of the vehicle until it is determined that the detection unit is locked. The detection means includes
Drive detection means for determining locking / unlocking from the state of the connected drive unit or drive control unit;
A lighting detection means connected to a hazard lamp or a hazard control unit provided in the vehicle and detecting a lighting state of the hazard lamp;
A lock state detection means for determining whether or not it is a regular unlocking / locking from the output of the drive detection means and the output of the lighting detection means,
When the determination result of the locking state detection means is a regular unlocking, the abnormality determination means is shifted to a non-guard state, and when the determination result is a normal locking state, the abnormality determination means is shifted to a security state. The vehicle burglar alarm device according to claim 1, further comprising a control unit. The vehicle burglar alarm device according to claim 1 or 2, wherein the history of the state change of the ACC power supply uses the number of ON / OFF changes of the ACC power supply. The vehicle burglar alarm device according to claim 1 or 2, wherein the history of the state change of the ACC power supply uses the number of times that the time when the ACC power supply is ON is equal to or less than a set time.

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