JP2002308053A - Theft prevention device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the wiring. SOLUTION: An abnormality detecting part 22 detects the lighting of a vehicle room lamp and the like by an optical sensor 30, and outputs an abnormality detection signal to turn a transistor 44 on. A detection control part 46 drives a transmitter 32 when the transistor 44 is turned on, and transmits the abnormality detection signal as an electric wave type signal 34. A receiver 36 of an alarm control part 26 sends a receiver signal to a controller 38 when it receives the electric wave-type signal 34. The controller 38 sends an operation signal to an alarm unit 24 to generate the warning sound when it receives the signal from the receiver 36. When a battery 48 of the abnormality detecting part 22 is drained, the detection control part 46 transmits a power source drain signal to the alarm control part 26 through the transmitter 32 by the electric wave-type signal. The control part 38 lights a light-emitting diode 42 and informs the draining of a power source when the alarm control part 26 receives the power source drain signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle anti-theft device for preventing a parked vehicle from being stolen.

[0002]

2. Description of the Related Art A vehicle anti-theft device for protecting a parked vehicle from theft generally comprises a sensor, a control unit and an alarm unit. The sensor detects that an abnormality has occurred in a parked vehicle, and conventionally, an impact sensor, an acoustic sensor, and the like have been widely used. The control unit activates the alarm unit according to the abnormality detection signal of the sensor, and generates an alarm sound or blinks an alarm lamp. One or a plurality of sensors are used as needed, and are attached to a door portion, a trunk portion, or the like in a vehicle interior. On the other hand, in recent vehicle anti-theft devices, the control unit and the alarm unit are generally installed in an engine room so that they cannot be easily removed.

[0003]

As described above, the conventional vehicle antitheft device has a sensor disposed in a vehicle compartment or a trunk, and a control unit and an alarm unit installed in an engine room to control the sensor. Are connected to each other by wiring, and an abnormality detection signal output from the sensor is transmitted to the control unit via the wiring. For this reason, it is necessary to construct the wiring so as not to be damaged by the use of the vehicle or to hinder people from getting on and off, and it is troublesome and requires technology. In particular, wiring for connecting the engine room to the vehicle interior or the trunk is a difficult task because the engine room is separated from the vehicle interior by a dash panel.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and has as its object to provide a vehicular distress prevention apparatus that can reduce the number of wirings. Another object of the present invention is to eliminate wiring connecting between an engine room and a vehicle interior.

[0005]

In order to achieve the above object, a first anti-theft device for a vehicle according to the present invention detects an abnormality occurring in a parked vehicle and outputs an abnormality detection signal by a radio wave type. It is characterized by having an abnormality detection unit that outputs as a signal, and an alarm control unit that receives a radio wave signal output by the abnormality detection unit and activates an alarm unit.

Further, a second vehicle anti-theft device according to the present invention comprises an abnormality detecting section for detecting an abnormality that has occurred in a parked vehicle, and an alarm based on an abnormality detection signal output by the abnormality detecting section. An alarm control unit that outputs a signal for operating the unit as a radio signal, and an alarm operation unit that receives the radio signal output by the alarm control unit and operates the alarm unit. In the second aspect, the abnormality detection unit may include a transmission unit that outputs the abnormality detection signal as a radio signal, and the alarm control unit may include a reception unit that receives the radio signal output by the transmission unit. .

[0007] The abnormality detecting section may be provided with an optical sensor for detecting that a lamp provided on the vehicle is turned on. Further, the abnormality detection unit can be provided with an operation power supply. When an operation power supply such as a battery is provided in the abnormality detection unit,
The abnormality detection unit has a power supply monitoring unit that detects exhaustion of the operation power supply and outputs a battery consumption signal by radio wave to the transmission unit,
The alarm control unit may be provided with a display unit for displaying the operating power consumption based on the battery consumption signal output from the transmission unit.

[0008]

According to the first aspect of the present invention, as described above, an abnormality detection signal of an abnormality detection unit having a sensor such as a vibration sensor or an acoustic sensor is output as a radio wave signal, and the radio wave signal is transmitted to an alarm control unit. Since the alarm unit is activated upon reception, it is not necessary to connect the abnormality detection unit and the alarm control unit with wiring, and the number of wirings can be reduced. And
Even when the abnormality detection unit is arranged in the vehicle compartment and the alarm control unit is arranged in the engine room, the abnormality detection signal is transmitted by radio waves, that is, electromagnetic waves propagating in the air, so the vehicle interior There is no need to provide wiring connecting the vehicle to the engine room, and the antitheft device can be easily installed.

Also, in the second aspect of the present invention, the alarm detection unit outputs an abnormality detection signal to the alarm control unit, and the alarm control unit outputs a drive signal of the alarm unit as a radio signal, and operates the alarm. Since the unit receives the signal and activates the alarm unit, the wiring connecting the alarm control unit and the alarm operation unit is unnecessary, and the number of wirings can be reduced. When the alarm actuating section is arranged in the engine room, there is no need to provide wiring connecting the vehicle interior and the engine room. By providing a transmission unit that outputs an abnormality detection signal as a radio signal in the abnormality detection unit and a reception unit that receives a radio signal in the alarm control unit, the number of wires that run around the vehicle interior can be reduced. Can,
Accidents such as damage to wiring can be reduced.

[0010] Car thefts are common at night. Therefore,
The lamp switch is set so that the lamp in the cabin or trunk is turned on when the vehicle door or trunk is opened, and an optical sensor is used as a sensor for the abnormality detection unit, and the optical sensor is placed in the vehicle interior or trunk. By doing so, when the door or trunk is opened, it can be detected, and it is possible to easily and reliably detect that an abnormality has occurred in the parked vehicle. In addition, by providing an operation power supply such as a battery in the abnormality detection unit, it is possible to avoid providing wiring for supplying power from the vehicle-mounted battery. And
A power supply monitoring unit is provided in the abnormality detection unit to monitor the degree of exhaustion of the operating power supply (battery), and a display unit that displays the operating power supply exhaustion state is provided in the alarm control unit. It is possible to know easily and reliably, and it is possible to prevent a situation in which the anti-theft device becomes inoperable due to a dead battery.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a vehicle antitheft device according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 2 is a schematic configuration diagram of the vehicle anti-theft device according to the first embodiment of the present invention. In FIG. 2, the vehicle 10
Abnormality detectors 22a and 22b constituting the anti-theft device 20 are disposed inside the passenger compartment 12 and the trunk room 14. In the engine room 16 of the vehicle 10, an alarm 24 and an alarm control unit 26 which are alarm units constituting the anti-theft device 20 are attached. The alarm 24 and the alarm control unit 26 are, in the case of this embodiment,
They are integrated and are powered by a vehicle battery.

The abnormality detectors 22a and 22b have the same structure, and as will be described in detail later, an optical sensor 30 (30a, 30b) composed of a solar cell and a transmitter 32 (32a, 32a) serving as a transmitter. 32b) and the optical sensor 30
Is transmitted by the transmitter 32 to the radio signal 34 (34a, 34b) by the electromagnetic wave propagating in the air.
Can be output (transmitted). The abnormality detection unit 22a disposed in the passenger compartment 12 is attached to the ceiling of the vehicle 10 so that the optical sensor 30a faces a room lamp (not shown) provided at the center of the passenger compartment ceiling. The fact that the room lamp has been turned on can be reliably detected. In addition, the abnormality detection unit 22b
An optical sensor 30b is attached so as to receive light from a trunk room lamp (not shown) provided in the trunk room 14.

On the other hand, the alarm control unit 26
A receiver (reception unit) 36 for receiving a radio wave signal 34 transmitted by the transmitter 32, and a controller 38 for receiving a reception signal output from the receiver 36. And the controller 38
Is configured with a CPU, and upon receiving a reception signal from the receiver 36, activates the alarm 24 to generate an alarm. Also, as shown in FIG. 1, the alarm control unit 38 transmits the radio-type operation signal 41 of the remote operation unit 40 via the receiver 36.
In response, the activation and deactivation of the anti-theft device 20 and the alarm 24
, Etc., for volume control. Further, a light emitting diode 42 serving as a display unit is connected to the controller 38. When the battery 48 serving as an operation power supply provided in the abnormality detecting unit 22 is depleted, the light emitting diode is turned on and the battery 48 is turned on. To let them know that they are exhausted.

The abnormality detection section 22 has a detection control section 46 composed of a CPU together with the optical sensor 30 and the transmitter 32. Further, the base of the transistor 44 is connected to the output side of the optical sensor 30 composed of a solar cell. The transistor 44 has an emitter grounded and a collector connected to the detection controller 46. The detection control unit 4
The transmitter 32 is connected to the output side of the transmitter 6. And
When the light sensor 30 drives the transistor 44 by turning on the room lamp or the trunk room lamp, the detection control unit 46 operates the transmitter 32 to output the abnormality detection signal as the radio signal 34. Further, the detection control unit 46
Is connected to a battery 48 serving as an operation power supply of the abnormality detection unit 22. In the case of the embodiment, the battery 48 is in the form of a button (or coin). When the output voltage of the battery 48 decreases to a certain value with respect to the rated voltage, the detection control unit 46 configures a power supply monitoring unit.
2 to transmit the battery consumption signal as a radio signal.

In this embodiment, the same ID number is assigned to the abnormality detection unit 22 and the remote operation unit 40 in advance. However, the alarm control unit 26 is not given a unique ID number. Then, the purchaser of the antitheft device 20 operates the remote control unit 40 to store the ID number given in advance in the controller 38 of the alarm control unit 26. Accordingly, even when a vehicle provided with the same anti-theft device 10 is present nearby, the abnormality detection signal for the target vehicle or the radio wave operation signal 41 output from the remote control unit 40 is transmitted to another vehicle. Can be distinguished from the signal for

In the anti-theft device 20, an integrated alarm 24 and an alarm controller 26 are installed in the engine room 16 of the vehicle 10, and the abnormality detectors 22a and 22b are
And the trunk room 14. When the anti-theft device 20 is activated, the lamp switch of the vehicle 10 is set so that the room lamp is turned on when the vehicle door is opened, and the trunk room lamp is turned on when the trunk is opened. Thereafter, the door is locked and the anti-theft device 20 is activated by the remote control unit 40.

When the anti-theft device 20 is in operation, for example, when someone opens the vehicle door, the room lamp provided on the ceiling of the cabin 12 is turned on. Then, the light of the room lamp is incident on the optical sensor 30a of the abnormality detection unit 22a disposed on the ceiling of the passenger compartment 12. Therefore, the optical sensor 30
, And the voltage is input to the base of the transistor 44 as an abnormality detection signal.
4 is turned on. As a result, the collector of the transistor 44 is grounded via the emitter, and the input terminal of the CPU constituting the detection control unit 46 is grounded via the transistor 44, and the voltage becomes 0V. When the voltage of the input terminal becomes 0 V, the detection control unit 46 generates a predetermined lamp lighting signal as an abnormality detection signal, sends the signal to the transmitter 32, activates the transmitter 32, and activates the radio signal. 34a. The radio signal 34a output from the transmitter 32a is received by the receiver 36 of the alarm control unit 26, and the received signal output from the receiver 36 is transmitted to the controller 38.
To enter. When receiving the reception signal corresponding to the abnormality detection signal from the receiver 36, the controller 38 outputs an operation signal to the alarm 24 to operate, and generates an alarm sound.

As described above, in the first embodiment,
Since the transmitter 32 provided in the abnormality detector 22 outputs the abnormality detection signal as the radio wave transmission 34, the abnormality detector 2
There is no need to connect between the alarm control unit 26 and the alarm control unit 26 by wiring, and wiring can be reduced. When the alarm control unit 26 is disposed in the engine room 16 of the vehicle 10 and the abnormality detection unit 22 is disposed in the vehicle room 12 or the trunk room 14, it is necessary to perform a work such as providing a wiring hole in a dash panel. The anti-theft device 20 is easily
Can be installed in

On the other hand, when the battery 48, which is the operating power supply of the abnormality detection unit 22, is depleted and the output voltage drops below a rated voltage by a predetermined value, the detection control unit 46 detects this, and generates a power consumption signal. The power consumption signal is transmitted as a radio signal from the transmitter 32 in the same manner as described above. Alarm control unit 26
When the controller 38 receives the power consumption signal via the receiver 36, the controller 38 drives the light emitting diode 42 as a display unit to light it. Thus, the user of the anti-theft device 20 can easily and reliably know the time of replacement and charging of the battery 48, and prevent the occurrence of a situation in which the anti-theft device 20 cannot be operated due to a dead battery or the like. it can.

FIG. 3 is an explanatory diagram of a second embodiment of the present invention. In the anti-theft device 50 of the second embodiment, as shown in FIG. 3 (2), the abnormality detection unit is formed by sensors 52 (52a, 52b) such as a vibration sensor and an acoustic sensor.
It is attached to an appropriate place in the vehicle compartment 12. The anti-theft device 50 has an alarm control unit 54 and an alarm unit 56. The alarm control unit 54 includes a controller 58 including a CPU to which an abnormality detection signal of each sensor 52 is input, and a controller 58.
And a transmitter 62 that outputs an abnormality detection signal as a radio signal 60 as a main component, and is disposed below a dashboard (not shown) of the vehicle 10.

The alarm unit 56 includes a receiver 64 for receiving the radio signal 60 output from the transmitter 62, and an alarm 66
And The alarm section 56 outputs an operation signal of the alarm 66 when the receiver 64 is an alarm operation section and receives an abnormality detection signal from the alarm control section 54 by the radio signal 60 to output a switch circuit (not shown). Is turned on, and the alarm 66 is connected to a power source such as a vehicle-mounted battery to operate. In the second embodiment, the alarm control unit 54 supplies power from a vehicle-mounted battery via the dashboard of the vehicle 10.

Also in the second embodiment, since the abnormality detection signal is transmitted between the alarm control unit 54 and the alarm unit 56 by radio waves, the number of wirings can be reduced. Further, even when the alarm control unit 54 is mounted in the vehicle compartment 12 and the alarm 56 is mounted in the engine room, there is no need to connect the alarm control unit 54 and the alarm unit 56 with each other by wiring. There is no need to provide holes for passing through.

FIG. 4 is an explanatory diagram of the third embodiment. As shown in FIG. 4B, in the antitheft device 70 of the third embodiment, an alarm control unit 72 includes a controller 74 and a receiver 36 that is a receiver provided on the input side of the controller 74. And a transmitter 62 provided on the output side of the controller 74.
A display unit 76 connected to the controller 74 is provided. The display unit 76 indicates that the battery of the alarm detection unit 22 (22a, 22b) has been exhausted, and may be constituted by the light emitting diode described in the first embodiment. And the alarm control part 72 is installed in the lower part of the dashboard of the vehicle interior 12, for example, and is supplied with power from a vehicle-mounted battery.

On the other hand, the abnormality detecting section 22 is configured similarly to the first embodiment, and has an optical sensor 30 and a transmitter 32 serving as a transmitting section. Furthermore, the abnormality detection unit 22
As shown in the figure, a detection controller 46 including a CPU and a battery 48 are provided. The alarm unit 56 is configured similarly to the second embodiment, and includes a receiver 64 and an alarm 66
And

The anti-theft device 70 according to the third embodiment configured as described above transmits the abnormality to the transmitter 32 when the optical sensor 30 of the abnormality detection unit 22 detects an abnormality by turning on a room lamp or the like and outputs an abnormality detection signal. Is driven by a detection control unit not shown in FIG.
Output as 4. The radio signal 34 is received by the receiver 36 of the alarm controller 72 and input to the controller 74. The controller 74 activates the transmitter 62 based on the received signal from the receiver 36 and causes the abnormality detection signal to be transmitted as the radio signal 60. The receiver 64 of the alarm unit 56 receives the radio signal 60 output from the transmitter 62 and
Activate 6. When the battery of the abnormality detection unit 22 is exhausted, the fact is displayed on the display unit 76 as described in the first embodiment.

The anti-theft device 70 according to the third embodiment
, The abnormality detected by the abnormality detection unit 22 is transmitted to the alarm control unit 74 by the radio signal 34, and the alarm control unit 7
4 transmits the signal to the alarm unit 56 as a radio signal 60, so that the number of wirings can be reduced, and wiring for connecting the vehicle room 12 and the engine room 16 is not required.

The above description has been given by way of example of the embodiment, and the present invention is not limited thereto.

[0028]

As described above, according to the present invention, an abnormality detection signal of an abnormality detection unit having a sensor such as a vibration sensor or an acoustic sensor is output as a radio signal, and the radio signal is controlled by an alarm. Since the unit receives the signal and activates the alarm unit, there is no need to connect the abnormality detection unit and the alarm control unit with a wire, and the number of wires can be reduced.
Even when the abnormality detection unit is disposed in the vehicle compartment and the alarm control unit is disposed in the engine room, the abnormality detection signal is transmitted by a radio wave using electromagnetic waves propagating in the air. There is no need to provide wiring connecting the vehicle to the engine room, and the antitheft device can be easily installed.

Further, in the present invention, an abnormality detection signal output by the abnormality detection unit is provided to the alarm control unit, and a drive signal of the alarm unit output by the alarm control unit is transmitted as a radio signal.
Since the alarm actuating unit receives the signal and activates the alarm unit, there is no need for wiring between the alarm control unit and the alarm actuating unit. When the alarm operating section is arranged in the engine room in the room, there is no need to provide wiring connecting the vehicle room and the engine room.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of a vehicle anti-theft device according to a first embodiment of the present invention.

FIG. 2 is an explanatory view of the vehicle anti-theft device according to the first embodiment of the present invention, wherein (1) is an abnormality detection unit, an alarm control unit,
FIG. 2 is an explanatory diagram of a state in which an alarm unit is attached to a vehicle, and (2) is a schematic configuration block diagram.

FIG. 3 is an explanatory view of a vehicle anti-theft device according to a second embodiment of the present invention, wherein (1) is an abnormality detection unit, an alarm control unit,
FIG. 2 is an explanatory diagram of a state in which an alarm unit is attached to a vehicle, and FIG.

FIG. 4 is an explanatory view of a vehicle anti-theft device according to a third embodiment of the present invention, wherein (1) is an abnormality detection unit, an alarm control unit,
FIG. 2 is an explanatory diagram of a state in which an alarm unit is attached to a vehicle, and (2) is a schematic configuration block diagram.

[Explanation of symbols]

10 vehicle, 12 vehicle compartment, 14 trunk room, 16 engine room, 20, 50, 70 anti-theft device, 22a, 22b, 52a, 52b ... abnormality detection unit, 26, 54, 72 alarm control unit, 24 alarm unit (alarm device), 30, 30a, 30b optical sensor, 3
2, 32a, 32b transmission unit (transmitter), 36 reception unit (receiver), 38, 58, 74 controller, 42 display unit (light emitting diode), 46 power supply monitoring unit (Detection control unit), 48: Operation power supply (battery), 56: Alarm unit, 62
... Transmitter, 64 receiver, 76 display unit.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C084 AA04 AA09 AA15 BB13 BB25 CC02 DD31 EE06 FF02 GG03 GG07 GG09 HH01

Claims (6)

[Claims] 1. An abnormality detection unit that detects an abnormality that has occurred in a parked vehicle and outputs an abnormality detection signal as a radio signal, and receives a radio signal output by the abnormality detection unit to activate an alarm unit. An anti-theft device for a vehicle, comprising: 2. An abnormality detection unit for detecting an abnormality occurring in a parked vehicle, and an alarm control for outputting a signal for activating an alarm unit as a radio signal based on an abnormality detection signal output from the abnormality detection unit. And an alarm operating unit that receives a radio signal output from the alarm control unit and operates the alarm unit. 3. The abnormality detection unit includes a transmission unit that outputs the abnormality detection signal as a radio signal, and the alarm control unit includes a reception unit that receives the radio signal output by the transmission unit. The anti-theft device for a vehicle according to claim 2, characterized in that: 4. The vehicle according to claim 1, wherein the abnormality detection unit has an optical sensor that detects that a lamp provided on the vehicle is turned on. Anti-theft device. 5. The anti-theft device for a vehicle according to claim 1, wherein the abnormality detecting unit has an operating power supply. 6. The power supply monitoring unit for detecting the exhaustion of the operating power supply and outputting a power consumption signal by a radio wave to the transmission unit, wherein the alarm control unit outputs the power supply consumption signal. The anti-theft device for a vehicle according to claim 5, further comprising: a display unit that displays a power consumption state of the operation power supply based on a battery power consumption signal.