JP2573052Y2 - In-vehicle security device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an anti-theft device for a vehicle such as an automobile, so-called car security, that is, locking of a door of a vehicle such as an automobile without using keys by remote control operation using a security code (ID code). Alternatively, it relates to a device that performs unlocking and the like.

[0002]

2. Description of the Related Art Conventionally, when a door of an automobile or the like is locked or unlocked, it is general to use a key. However, since this method can be unlocked relatively easily using another key or the like, the occurrence of theft accident has not always been small.

Therefore, a certain code (a password) is stored in a control device mounted on a vehicle, and a command relating to locking or unlocking of the door is transmitted from outside the vehicle using a remote control device. An automatic lock mechanism for unlocking or locking a door has been developed and put to practical use.

[0004] Such a conventional device further improves the convenience of the user, for example, by stopping the vehicle, turning off the ignition switch to turn off the engine, and allowing the occupant to get out of the vehicle. When you open and close the
From that point, the automatic lock timer is activated, and the door is automatically locked after a predetermined time, for example, 20 seconds.

[0005]

In the above-described conventional apparatus, there is no problem if the vehicle is entered or exited by a fixed means, and it is very convenient. There was a problem when it became irregular. For example, when the vehicle is stopped, the ignition switch is turned off, the engine is turned off, and the occupant opens and closes the door to get out of the vehicle, the auto-lock timer is activated from that point on, and a predetermined time, for example, 20 seconds. Is configured to lock the door automatically after
It is sufficient that there is a person who gets off inside or near the vehicle for seconds, but if the vehicle leaves the vehicle immediately for some reason, there is a good chance that the vehicle will be stolen even for 20 seconds.

[0006] Further, if the door of the vehicle is locked, the vehicle is temporarily separated, and then comes back and the door is unlocked, then, for some reason, the person may leave the vehicle without getting on. Even so, the doors remain unlocked, which is also likely to be stolen. The present invention seeks to provide a car security auto-lock function having an effective anti-theft device in such cases.

[0007]

Means for Solving the Problems The invention according to claim 1 is:
In a vehicle-mounted security device having a control unit that receives a remote control signal from a remote control device by a receiving unit, locks / unlocks a door according to the received signal, and sets a vehicle in an arming state / disarming state, A radar sensor unit that detects a movement of a person in the vehicle and outputs a detection signal, wherein the control unit receives a disarming signal from the remote control device when the vehicle is in an arming state and the door is in a locked state, and When the vehicle is disarmed and the door is unlocked, the radar sensor is operated for a predetermined time to detect the movement of a person in the monitoring area, and if not detected, the door is locked again and the vehicle is locked. It is characterized in that it is in an arming state. According to a second aspect of the present invention, there is provided a vehicle having a control unit that receives a remote control signal from a remote control device by a receiving unit, locks / unlocks a door according to the received signal, and sets a vehicle in an arming state / disarming state. A security device for detecting a movement of a person in a monitoring area and outputting a detection signal, wherein the control unit is configured such that when an ignition switch is turned off and a door is closed, the radar sensor unit is provided. Is operated for a predetermined time to detect the movement of a person in the monitoring area, and when the movement is not detected, the door is locked and the vehicle is armed.

[0008] The invention according to claim 2 is based on a remote control device.
Receiving the remote control signal of the
Lock / unlock the door and
The control unit that switches to the arming / disarming state
In the surveillance area
To detect the movement of people in
With a timer function that regulates its own operating time
And a control unit, the ignition unit
When the switch is turned off and the door is closed,
Activate the sensor unit for a predetermined time and enter the monitoring area.
The movement of the person in the room.
And arming the vehicle
It is characterized by.

[0009]

[Function] A detection result of a radar sensor that detects the presence of a person inside or near a vehicle is input to a control unit configured by a microcomputer, and this is correlated with input of door opening / closing information by a door sensor unit. On
Since the door lock is controlled, arming is performed for safety when irregular getting on and off the vehicle. As a result, the effect of preventing theft is markedly improved. To improve.

[0010]

FIG. 1 is a block diagram showing an embodiment of the present invention.
Reference numeral 1 denotes a main body of the anti-theft device mounted on a vehicle, and reference numeral 20 denotes a separate remote controller. The anti-theft device main body 1 of the present embodiment includes a high-frequency amplifier circuit 11, a mixer 12, and a local oscillation circuit 13 for receiving a signal input from the antenna 1a, a detector 14 for demodulating a received signal, and a demodulator. A waveform shaping circuit 15 for shaping the signal waveform thus obtained, and further connected to a control unit 16 and a control unit 16 of a microcomputer configuration for controlling a door lock unit and a door unlock unit, which will be described later, by an input from the waveform shaping circuit 15 and the like. The control unit 16 of the antitheft device main body 1 configured as described above is provided with a door sensor unit 2 that detects an open / closed state of a vehicle door and a human sensor in the vicinity of the vehicle or in the vehicle interior. The output of each sensor from the radar sensor unit 3 for detecting the presence and the output of detecting the ON / OFF state of the ignition switch 7 of the vehicle are respectively It is a force. Reference numeral 8 denotes a battery of the vehicle.

Reference numeral 4 denotes a door lock unit for locking the door of the vehicle, 5 a door unlock unit for unlocking the door, and 6 a siren unit for issuing an alarm when a theft occurs. It operates under the control of the unit 16.

The remote control device 20 according to the present embodiment includes an operation unit 21 having various keys and the like, a control unit 22 having a microcomputer configuration.
And a memory 23, a modulation circuit 24, and an oscillation circuit 2 connected thereto.
5 and the output of the oscillation circuit 25 is the antenna 2
0a.

Next, the operation of this embodiment will be described with reference to the flowcharts of FIGS. First, when the vehicle stops and the engine is turned off, the ignition signal is Lo.
Since it is w, the control 16 checks this as the ON / OFF state of the ignition switch 7 (step 10).
1) If it is Low, it is next checked whether a door closing signal has been input from the door sensor unit 2 (step 10).
2). If the door closing signal has been received (step 10
3) Since there should be no more people in the vehicle, the control unit 16 controls the radar sensor unit 3 to turn on only the vehicle interior for a short time (for example, 5 seconds) as a detectable area (step 104). To check the cabin. Then, it is confirmed whether or not a detection signal has been input from the radar sensor unit 3 (step 105). If there is an input, since there is still a person left, the process returns to step 102 and waits for an input of a door closing signal again. If there is no input, the control unit 16 receives the radar sensor detection signal because there is no person in the vehicle interior (step 106), performs arming to lock the door of the vehicle (step 107), and activates the door lock unit 4. Activate and lock the vehicle door to arming state.

Thereafter, a person returns to the vehicle and the remote control device 2
By operating the operation unit 21 of No. 0, a disarming signal for unlocking the door is transmitted. This is performed by the control unit 22 reading the ID code and the disarming command from the memory 23 by operating the operation unit 21, modulating the carrier wave oscillated by the oscillation circuit 25 by the modulation circuit 24, and transmitting the modulated carrier wave from the antenna 20a. Will be

The transmission signal is received by the antenna 1a of the antitheft device main body 1 in which the vehicle is installed, and the radio frequency amplification circuit 11, the local oscillation circuit 13, the mixer 12, the detector 14,
An ID code and a disarming command data signal are input to the control unit 16 via the waveform shaping circuit 15. The above operation is the same as that of a general remote control receiver, and a detailed description thereof will be omitted.

The control unit 16 checks the presence or absence of a disarm signal input (step 108). If there is an input, the control unit 16 stores the input ID code in the ID stored in the memory 17
After comparing with the code, if they are the same, the door unlocking unit 5 according to the input disarming command.
To perform disarming (step 10
9). Next, the radar sensor unit 3 is controlled to turn on the vicinity of the outside of the vehicle for a predetermined time (for example, 20 seconds) as a detectable region (step 110), and it is checked whether or not there is a person near the outside of the vehicle (step 111). If there is an input, the first detection signal from the radar sensor unit 3 is received (step 112), and the radar sensor unit 3 is turned on as a detectable region only in the vehicle interior for a predetermined time (for example, again for 20 seconds). (Step 113) It is checked whether there is a person inside the vehicle (Step 1)
14). If there is an input, a second detection signal from the radar sensor unit 3 is received (step 115), and the radar sensor unit 3 is turned off (step 116).

In step 111, if there is no first radar sensor detection signal input, it is determined that there is no person in the external area near the vehicle which can be detected by the radar sensor unit 3 for some reason and there is no person. Returning to 107, arming is performed. Also,
If there is no second radar sensor detection signal input in step 114, the process returns to step 107 assuming that the user did not get on for some reason, arming the vehicle, operating the door lock unit 4, and locking the door. .

[0018]

As described above, according to the first aspect of the present invention, when the vehicle is in the arming state and the door is in the locked state, the disarming signal is received from the remote control device to put the vehicle in the disarming state. When the door is unlocked and the door is unlocked, the radar sensor is activated for a predetermined time to detect the movement of a person in the monitoring area, and if not detected, the door is locked again and the vehicle is armed. Therefore, if you try to get into the car and put the vehicle in a disarming state and for some reason leave without getting into the vehicle,
Or, if the user accidentally operates a button on the remote control device and enters a disarming state, the presence or absence of a person is immediately detected by the radar sensor, and if not detected, the door is automatically locked and the vehicle is armed. Since the state is set, the effect of preventing theft is remarkably improved. In the invention according to claim 2, when the ignition switch is turned off and the door is closed, the radar sensor is operated for a predetermined time to detect the movement of a person in the monitoring area,
When not detected, the door is locked and the vehicle is armed, so the presence or absence of a person is immediately detected using a radar sensor, and if not detected, it is clear that the person has left the vehicle. In addition to automatically locking the door, the vehicle is in the arming state, so that the effect of preventing theft is significantly improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart of the operation of the embodiment of the present invention;

FIG. 3 is a continuation of the flowchart of the operation of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Theft prevention device main body 1a Antenna 11 High frequency amplifier circuit 12 Mixer 13 Local oscillation circuit 14 Detector 15 Waveform shaping circuit 16 Control unit 17 Memory 2 Door sensor unit 3 Radar sensor unit 4 Door lock unit 5 Door unlock unit 6 Siren unit Reference Signs List 7 ignition switch 8 battery 20 remote control device 20a antenna 21 operation unit 22 control unit 23 memory 24 modulation circuit 25 oscillation circuit

Claims (2)

(57) [Scope of request for utility model registration] An in-vehicle security device having a control unit that receives a remote control signal from a remote control device by a receiving unit, locks / unlocks a door according to the received signal, and sets a vehicle in an arming state / disarming state. In the above, it is provided with a radar sensor unit that detects a movement of a person in a monitoring area and outputs a detection signal, wherein the control unit is configured to output a detection signal from the remote control device when the vehicle is in the arming state and the door is in the locking state. When the vehicle is disarmed and the door is unlocked, the radar sensor is operated for a predetermined time to detect the movement of a person in the monitoring area.
An in-vehicle security device that locks a door and sets a vehicle in an arming state. 2. A vehicle-mounted security device having a control unit that receives a remote control signal from a remote control device by a receiving unit, locks / unlocks a door according to the received signal, and sets a vehicle in an arming state / disarming state. In the above, a radar sensor unit that detects a movement of a person in a monitoring area and outputs a detection signal, wherein the control unit turns off the radar sensor unit for a predetermined time when an ignition switch is turned off and a door is closed. An in-vehicle security device that is activated to detect movement of a person in a monitoring area, and when not detected, locks a door and puts a vehicle into an arming state.