JPH0634190Y2 - Security device - Google Patents

Description

[Detailed Description of the Invention] <Industrial field of application> The present invention relates to a security device, and in particular, when an abnormality occurs during anti-theft operation (during security operation), security that can identify any abnormality later Regarding the device.

<Prior Art> In an anti-theft device (security device) for preventing an automobile from being stolen, another person (1) opens a door of the automobile or (2) receives a considerable shock to the automobile in order to steal the automobile while security is activated. When given, (3) opening the trunk or hood, (4) breaking glass, or (5) entering the car, the sensor detects them and sounds the siren for a predetermined time, or the headlight of the car Blinking and starter cut (to prevent the engine from starting) or fuel cut to prevent the car from running and prevent theft.

<Problems to be solved by the invention> According to such a conventional antitheft device, when an abnormality is detected during the security operation and the alarm notification for a predetermined time ends, whether or not the abnormality has occurred thereafter is generated. If so, it was not possible to identify what kind of abnormality had occurred.

For this reason, if the user (vehicle owner) does not notice the alarm notification, the fact that the vehicle has been mischievous for the purpose of stealing or the like and the fact that it is being aimed at cannot be known, and therefore the countermeasure cannot be taken. Even if it was found that the vehicle was mischievous, it was impossible to know which sensor was activated (abnormality detected), and there was a problem that early detection of abnormality and elucidation of the method of stealing could not be done easily. .

Furthermore, if the sensitivity of the sensor is too good, the sensor malfunctions due to natural phenomena such as wind and rain. In such a case, it is necessary to adjust the sensitivity of the sensor that has detected the abnormality, but conventionally, there is a problem that the sensor cannot be specified and the sensitivity adjustment is not easy.

In view of the above, an object of the present invention is to provide a security device capable of notifying the user of the fact that an abnormality has occurred and which sensor has been activated even after an alarm is issued if an abnormality occurs during security operation. That is.

Another object of the present invention is to provide a security device capable of identifying a sensor that has occurred and operated abnormally by blinking an LED.

<Means for Solving the Problem> In the present invention, the above-mentioned problem is storage means for storing a sensor for detecting an abnormality that has occurred, blinking signal generating means for generating a blinking signal according to the sensor for detecting an abnormality, and the blinking signal. And a display element that blinks.

<Operation> The sensor that detected the abnormality that occurred during the anti-theft operation is stored in memory, and when the anti-theft operation is canceled (reset), a blinking signal is generated according to the sensor that detected the abnormality, and the blinking signal Make the LED blink. Thereby, the number of blinks per predetermined time can be changed according to the sensor, and the operation sensor can be identified based on the number of blinks.

<Embodiment> FIG. 1 is a block diagram of a security device according to the present invention. Reference numeral 1 denotes a portable transmission unit (remote control unit) that can transmit a security operation start signal (arming signal), stop signal (disarming signal), and other window opening / closing signals to the in-vehicle security device by pressing a key. It has become. 11 is an arming key, 12 is a disarming key, 13 is a window open key, 13 'is a window close key, 14 is a microcomputer which generates a code and an ID code according to the key when pressed, 15 is A modulation circuit that amplitude-modulates the input code with a carrier wave of a predetermined frequency, and 16 is an LC oscillation circuit that power-amplifies the modulation signal and radiates a radio wave from a loop antenna 17 connected to the output side.

Reference numeral 2 denotes a security device main body, which (1) enables reception of an arming signal from the transmission unit 1 only within a predetermined time after the door is closed, and an arming sent from the transmission unit only within the reception available time. The security operation is started in response to the signal, (2) other signals can be always received, the security operation is stopped by receiving the disarming signal, and (3) the vehicle is controlled by receiving the vehicle control signal such as opening and closing the window. Control parts. It is suitable that the predetermined time is about 10 seconds. This is because it is enough to do arming within 10 seconds after closing the door when leaving the car, and there is no problem if arming is not possible at other times, rather there is a problem due to incorrect operation. is there.

In the security device main body 2, 21 is an antenna, 22 is a receiving unit for receiving and demodulating a signal transmitted from the remote control unit 1, 23 is a timer, 24 is the remote control unit only within a predetermined time after the door is closed. 1 is an arming acceptance monitor that enables acceptance of an arming command from 1, and 25 is a security controller that is sent from the remote control unit 1 only during the acceptable time (when the acceptable signal RPS is at a high level). The security operation is started in response to the arming command. Other commands are always accepted, the security operation is stopped based on the disarming command, and each part of the vehicle is controlled based on the vehicle control command such as window opening / closing.

Reference numeral 3 denotes a detection unit that detects door opening / closing, hood / trunk opening / closing, glass breaking sound, vehicle vibration, intrusion of foreign matter into the vehicle, theft of car audio equipment, and the like. The door opening / closing sensor 31, the hood sensor 32. , Glass sensor 33, vibration sensor 3
4, ultrasonic sensor 35 and the like are provided.

Reference numeral 4 denotes an anti-theft unit that, when an abnormality is detected by each sensor during security operation, turns off the siren driver 41, which outputs a siren by the siren drive signal SDR output from the security control unit 25, and the flashing drive signal BLD, which turns on the headlight. It has a blinking light driver 42.

Reference numeral 5 denotes an engine control unit, which is used when an abnormality is detected by each sensor during security operation.
The signal ESP output from 25 performs engine start cut or fuel cut to prohibit engine start.

Reference numeral 6 denotes a window driver that opens the window when the security device body 2 receives a window opening / closing command from the remote control unit 1.

Reference numeral 7 denotes an abnormality detection sensor display unit for informing a sensor that has detected an abnormality that has occurred in the vehicle, including an LED (light emitting diode) 71 and a blinking signal generation unit 72 that generates a blinking signal according to the sensor that has detected the abnormality. It has an LED driver 73 for blinking an LED by the blinking signal. Note that the LED 71 is usually installed at a position inside the door, which is remote from the security body 2 and visible from the outside.

FIG. 2 is a block diagram of the blinking signal generator 72, which has first to seventh blinking signal generators 72a to 72g, a gate circuit 72h, and a gate controller 72i.

As shown in FIG. 3, the first blinking signal generating circuit 72a
A blinking signal (a signal having one pulse having a width of 0.125 sec in one second) LNF1 is generated, and the second blinking signal generating circuit 72b outputs a second pulse.
A blinking signal (a signal having two pulses having a width of 0.125 sec in one second) LNF2 is generated, and the third blinking signal generating circuit 72c outputs a third blinking signal (having one pulse in two seconds) according to the door sensor 31. Signal) LNF3 is generated, and the fourth blinking signal generation circuit 72
d is the fourth blinking signal (2 in 2 seconds) according to the hood sensor 32.
LNF4 is generated by the fifth blinking signal generation circuit 72e, and the fifth blinking signal generation circuit 72e generates a fifth blinking signal (a signal having three pulses in 2 seconds) LNF5 corresponding to the glass sensor 33.
The sixth blinking signal generating circuit 72f is the sixth
Blinking signal (a signal having 4 pulses in 2 seconds) LNF6 is generated, and the 7th blinking signal generation circuit 72g responds to the ultrasonic sensor 35 by a 7th blinking signal (a signal having 5 pulses in 2 seconds). Generates LNF7.

The gate control unit 72i outputs (1) a selection signal for selecting the first blinking signal LNF1 to the gate circuit 72h when (1) no abnormality is detected during the security operation, and (2)
When an abnormality is detected during the security operation, the selection signal for selecting the second blinking signal LNF2 is output until the security operation is subsequently released, and (3) When the security operation release signal (disarming signal) is generated. Then, a selection signal for selecting a blinking signal corresponding to the sensor operated during the security operation for one minute is output.

The gate circuit 72h selects a desired blinking signal based on the selection signal from the gate controller 72i and inputs it to the LED driver 73 in the next stage. When a plurality of sensors operate during the security operation, the gate controller 72i outputs a selection signal for selecting a blinking signal corresponding to each of the sensors in a cycle of 2 seconds. FIG. 4 shows a door sensor 31 and a hood sensor 32.
Is an output example of the gate circuit in the case of simultaneous operation, and the third and fourth blinking signals LNF3 and LNF4 are alternately output every 2 seconds.

Hereinafter, the LED blinking control according to the present invention will be described with reference to the flowchart of FIG.

In the initial state, assuming that the arming acceptance monitor 24 is in the disarming state, the acceptability signal RPS is at a low level. Therefore, the security control unit 25 does not activate the security even if the arming command is received from the remote control unit 1.

In this state, the arming reception monitoring unit 24 monitors whether the door is opened or closed (from open to closed) based on the output of the door open / close sensor 31. And a signal when the door is opened and closed
RPS is set to high level to enable arming and start timing.

Next, the arming monitoring unit 24 checks whether a predetermined time, for example, 10 seconds has elapsed from the start of timing, and if not, 10
The time is measured until the second has passed, and when 10 seconds have passed, the accepting signal RPS is set to the low level to disable the arming, and then the next door is opened and closed.

On the other hand, the security control unit 25 refers to the level of the acceptable signal RPS to monitor whether or not the arming is possible. When the signal RPS becomes high level and the arming is possible by opening / closing the door, the arming command is issued from the remote control unit 1. Wait for it to be sent.

When the arming command is received from the remote control unit 1 in the arming enabled state (within 10 seconds after opening and closing the door), the security control unit 25 enters the security operating state (arming mode). .. Step 101 Further, the security control unit 25 inputs the data "the security is currently in operation and no abnormality is detected yet" to the blinking signal generation unit 72. This makes the flashing signal generator
72 selectively outputs the first blinking signal LNF1 to blink the LED 71 once per second (step 102).

Next, the security control section 25 monitors whether or not an abnormality is detected based on the sensor output, in other words, monitors whether at least one sensor has operated (step 103).

If the sensor is not working, check if the disarming command has been received (step 104). If the disarming command has not been received (if the security is not released), the LED after step 102 blinks once / second. Is continued.

However, if the disarming command is received in step 104 and the security is released, the security control unit 25 sends a blinking stop signal to the blinking signal generation unit 72 (step 105), turns off the blinking of the LED 71 and blinks. The process ends.

On the other hand, if an abnormality is detected by the sensor in step 103, the security control unit 25 determines that the siren drive signal SD
R, flashing drive signal BLD and engine start prohibition signal ESP are output to prevent theft (step 10
6).

Further, the security control unit 25 stores the identification code of the sensor that has detected the abnormality or the type of the abnormality in the built-in memory 25a (step 107), and the data that "the security is currently being operated and the abnormality has been detected". Is input to the blinking signal generator 72. As a result, the blinking signal generator 72 outputs the second blinking signal LNF2 until the security operation is released, and the LED 71 blinks rapidly at a rate of 2 times / second (step 108).

Next, it is checked whether a disarming command has been received (step 109), and if not received, the LED continues to blink twice / second. However, if the disarming command is received and the security is released, the sensor after-check function works and the subsequent blink control is performed. That is, the security control unit 25 checks the stored contents of the memory 25a, identifies the sensor that has detected an abnormality during the security operation, and changes the sensor name to the blinking signal generation unit 72.
(Step 110).

When the sensor name is received, the blinking signal generator 72 selectively outputs the blinking signal corresponding to the input sensor name, and the blinking signal
Blink the LED (step 111). For example, if the glass sensor 33 operates and an abnormality is detected, the blinking signal generator 72 outputs the fifth blinking signal LNF5 to blink the LED 71 3 times / 2 seconds.

Next, the security control unit 25 checks whether or not a predetermined time, for example, one minute has elapsed after performing the blinking control according to the sensor (step 112), and if it has not elapsed, continues the blinking control, and passes it. For example, a blinking stop signal is sent to the blinking signal generator 72 (step 105), the blinking of the LED 71 is turned off, and the blinking process ends.

If a non-volatile memory is used as the memory 25a built in the security control unit 25, even if the anti-theft device is removed from the set and sent to the dealer, which sensor has malfunctioned can be known later.

<Advantage of Device> According to the present invention, the sensor that detects an abnormality that occurs during the anti-theft operation is stored in memory, and when the anti-theft operation is released (reset), the light flashes according to the sensor that detects the anomaly. Since the signal is generated and the LED is made to blink by the blinking signal, it is possible to inform the user of the fact that the abnormality has occurred and which sensor has been activated even after the alarm notification of the abnormality has occurred. .

Further, according to the present invention, even if the user (vehicle owner) does not notice the alarm notification, the fact that the vehicle has been mischieved for the purpose of stealing or the like and the fact that the vehicle is targeted are promptly known. It is possible to know which sensor has actuated from the number of times the LED flashes per predetermined time, and it is possible to quickly take countermeasures against stealing and mischief, and it is possible to easily understand the method of stealing and effectively steal the car It can be prevented.

Further, according to the present invention, when the sensor malfunctions due to wind and rain due to the sensitivity of the sensor being too good, or when the sensor malfunctions for other reasons, the malfunctioning sensor can be identified, so that the sensitivity can be easily adjusted or adjusted. The cause of malfunction can be investigated.

[Brief description of drawings]

 FIG. 1 is a block diagram of a security device according to the present invention, FIG. 2 is a block diagram of a blinking signal generator, FIGS. 3 and 4 are explanatory diagrams of various blinking signals, and FIG. 5 is a blinking relating to the present invention. It is a flow chart of control. 25 …… Security control unit 25a …… Memory 31 to 35 …… Sensors 71 …… LED, 72 …… Blinking signal generator

Claims (1)

[Scope of utility model registration request] 1. A security device for reporting an alarm for a predetermined time when an abnormality is detected by a sensor mounted on a vehicle during the anti-theft operation, a storage means for storing the sensor for detecting the abnormality during the anti-theft operation, When the prevention operation is canceled, the stored contents of the storage means are automatically checked, and a means for identifying the sensor that has detected an abnormality during the theft prevention operation, and a blinking signal corresponding to the identified abnormality detection sensor is generated. A security device, comprising: a blinking signal generating means, and a display element that blinks by the blinking signal to specify an abnormality detection sensor. A security device comprising a display element that blinks according to the blinking signal.