JPH0512320U - In-vehicle security device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a vehicle-mounted security device that does not enter a security operating state even when an arming command is generated while the vehicle is running. [Arrangement] The arming enable / disable setting unit 23 checks whether or not the door is opened / closed after the security is not activated based on the output signal of the door open / close sensor 31, and outputs the vibration sensor 32 if the door is opened / closed. Check if vibration is occurring based on the signal. When vibration occurs, arming is possible as if the car is running /
The prohibition setting unit 23 sets a high level (=
The signal AMD of “1”) is input to the security control unit 24. When the arming is prohibited, the security control unit 24 does not activate the security even if the arming command is issued from the remote control unit 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle-mounted security device, and more particularly to a vehicle-mounted security device that starts and stops security by a portable transmission unit.

[0002]

[Prior Art]

 An anti-theft device (security device) that prevents a car from being stolen is used by someone else to open the car door, give a proper shock to the car, open the trunk, or open the car in order to steal the car while security is operating. When it gets inside, it sounds a siren or blinks the car's headlights, and also uses a starter cut (to prevent the engine from starting) or fuel cut to prevent the car from running and prevent theft.

As such a vehicle-mounted security device, there is one in which a security operation is started and stopped by a portable transmission unit (remote control unit), and the security operation is started (called arming) and stopped (called disarming) by remote control. It is performed by pressing an arming key, a disarming key or a combined key provided on the control unit.

[0004]

[Problems to be solved by the device]

 By the way, in a vehicle-mounted security device using such a remote control unit, a driver or a passenger may accidentally arm the remote control unit while driving a vehicle to activate the security device.

When the vehicle is in a security activated state while driving, vibration or noise is immediately detected by the vibration sensor or noise sensor because the vehicle is moving, which suddenly sounds a siren or flashes the headlights of the vehicle. The starter cut or fuel cut may cause the vehicle to stop running, which is extremely dangerous.

Therefore, a first object of the present invention is to provide an in-vehicle security device that does not enter a security operating state even when an arming command is issued while the vehicle is traveling.

A second object of the present invention is to achieve the above object by using a sensor provided in an existing security device without requiring a new sensor.

[0008]

[Means for Solving the Problems]

 The first object of the present invention is to provide a portable transmission unit for instructing the in-vehicle security device to start and stop security, an in-vehicle receiving unit for receiving a signal from the transmission unit, and a vehicle for stopping. A door open / close detector that detects whether the vehicle door is open or closed, a theft detection means that detects a change in the vehicle state due to vehicle theft, and a door open / close detection based on the door open / close detection. After the detection, the security control unit that starts the security operation in response to the activation signal sent from the transmission unit, provided that the vehicle is detected to be stopped by the detector. It is achieved by including and.

The second object is achieved by the detector for detecting that the vehicle is stopped and the door opening / closing detector also serving as the theft detecting means.

[0010]

[Action]

 In the non-operation of security, after detecting the opening / closing of the door, when the stop state of the vehicle is not detected, it is assumed that the vehicle is in the running state or the runnable state, and the security control unit is kept in the arming prohibited state. Therefore, even if an arming command is issued from the transmitting unit, the security is not activated. On the other hand, after detecting the opening / closing of the door, when the stop state of the vehicle is detected, the security control unit receives the activation signal from the transmission unit, so that the arming state is set. Therefore, when the activation signal is issued from the transmission unit, the security control unit receives the activation signal and starts the security operation to perform the anti-theft control.

[0011]

【Example】

 FIG. 1 is a block diagram of a vehicle-mounted security device according to the present invention. Reference numeral 1 denotes a portable transmission unit (remote control unit), which can transmit an arming signal or a disarming signal to the in-vehicle security device by pressing a key. 11 is an arming key, 12 is a disarming key, 13 is a microcomputer that generates a code and an ID code corresponding to the key when pressed, 14 is a modulation that amplitude-modulates the input code with a carrier wave of a predetermined frequency. A circuit, 15 is an LC oscillating circuit for power-amplifying the modulated signal and radiating a radio wave from a loop type antenna 16 connected to the output side.

Reference numeral 2 is a main body of the security device, 21 is an antenna, 22 is a receiving unit for receiving and demodulating a signal transmitted from the remote control unit 1, and 23 is a security non-operation ( ^* SEC = “1”), After the door is opened and closed, arming is disabled (AMD = "1") when vibration of the vehicle is detected, and arming is enabled (AMD = "0") when it is not detected. The arming enable / disable setting section 24 is a security control section, and only in the arming enable state, the anti-theft operation is started while the security is operating in response to the arming command sent from the remote control unit 1. Let

Reference numeral 3 denotes a theft detection unit that detects changes in the vehicle state due to vehicle theft, such as door opening / closing, vibration, riding in the driver's seat, noise inside the vehicle, and opening / closing of the trunk. A vibration sensor 32, a boarding sensor 33, ... A trunk opening / closing sensor 34, etc. are provided. Here, the vibration sensor 32 can serve both as an engine stop sensor that detects a stopped state of the vehicle and as an anti-theft sensor that detects vibration caused by the destruction of the window glass of the car by a thief. is there.

Reference numeral 4 denotes an anti-theft unit, which uses a siren driver 41 that sounds a siren by the siren drive signal SDR output from the security control unit 24 and a blinking drive signal BLD when an abnormality is detected by each sensor during security operation. It has a light driver 42 for blinking the headlight.

Reference numeral 5 denotes an engine control unit, which performs an engine start cut or a fuel cut by a signal ESP output from the security control unit 24 when an abnormality is detected by each sensor during the security operation, thereby starting the engine. Prohibit

FIG. 2 is a flow chart of the arming control of the present invention, and the overall operation of FIG. 1 will be described below with reference to this flow chart. It is assumed that the initial security operation state ( ^* SEC = “0”) is set.

When a disarming command is generated by a key operation of the remote control unit 1, the security control unit 24 puts the security device main body 2 in the security non-operation state ( ^* SEC = “1”). (Step 101).

The arming enable / disable setting unit 23 checks whether or not the door has been opened / closed after the security is not activated based on the output signal of the door opening / closing sensor 31 (step 102). For example, it is checked based on the output signal of the vibration sensor 32 whether vibration is occurring (step 103).

When vibration occurs, the arming enable / prohibition setting unit 23 determines that the vehicle is running, and the high level (= “1”) signal AMD indicating prohibition of arming is sent to the security control unit 24. Input (step 104). When the arming is prohibited, the security control unit 24 does not activate the security even if the remote control unit 1 issues an arming command.

On the other hand, in step 103, if the vibration is not generated, the arming enable / prohibit setting unit 23 determines that the vehicle is not running, and the arming enable / prohibit setting unit 23 indicates the arming possible low level (= “0”). The signal AMD of is input to the security control unit 24 (step 105).

In such a state, the security control unit 24 checks whether an arming command is issued from the remote control unit 1 (step 106), and if it is issued, the security is activated ( ^* SEC = “0”), Start anti-theft surveillance. (Step 107).

Although the vibration sensor is used for detecting whether the vehicle is running / stopped in the above embodiment, a boarding sensor for detecting the intrusion of a thief may be used. Alternatively, a vehicle speed sensor may be used.

As described above, according to the present invention, the in-vehicle security unit has a portable transmission unit for instructing start and stop of security, an in-vehicle reception unit for receiving a signal from the transmission unit, and the vehicle is stopped. Of the vehicle, a door open / close detector that detects the opening and closing of the vehicle door, a theft detection means that detects changes in the vehicle state due to vehicle theft, and the door open / close detector Security that starts the security operation in response to the activation signal sent from the transmission unit on condition that the detector detects that the vehicle is stopped after the opening and closing of the door is detected. Since it is equipped with a control unit, it is possible to eliminate the danger that the security is activated while driving.

According to the second aspect of the invention, it is sufficient to use the sensor provided in the existing security device, and a new sensor is not required, which is advantageous in cost.

[Brief description of drawings]

FIG. 1 is a block diagram of an in-vehicle security device according to the present invention.

FIG. 2 is a flowchart illustrating an arming operation of the present invention.

[Explanation of symbols]

 1 Transmitting Unit (Remote Control Unit) 2 Security Device Main Body 23 Arming Possible / Prohibition Setting Section 24 Security Control Section 31 Door Open / Close Sensor 32 Vibration Sensor

Claims (2)

[Scope of utility model registration request] 1. A portable transmission unit for instructing start and stop of security, a vehicle-mounted receiving unit for receiving a signal from the transmission unit, a detector for detecting that the vehicle is stopped, and a vehicle A door opening / closing detector for detecting opening / closing of the door, a theft detecting means for detecting a state change of the vehicle due to vehicle theft, and a detector after the door opening / closing detector detects opening / closing of the vehicle door. An in-vehicle security device, comprising: a security control unit that starts a security operation in response to an activation signal sent from a transmission unit on condition that the vehicle is detected to be stopped. 2. The in-vehicle security device according to claim 1, wherein a detector for detecting that the vehicle is stopped and the door open / close detector also serve as the theft detection means.