JPH0585387B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an anti-theft device for a vehicle.

(Prior Art) Vehicles are generally equipped with door locks and handle locks, and these locks are used to prevent the vehicle from being stolen. This may result in theft or theft. For this reason, for example, as disclosed in Japanese Utility Model Publication No. 57-32046, unless the key switch is turned on within a specified time after the door is opened, the horn is sounded to alert outsiders to prevent theft. Devices have been developed to prevent this. However, although this conventional device is designed to prevent vehicle theft, it is not effective if the driver leaves the vehicle with the keys in the vehicle, and when he returns later, he is unable to find the place where he parked the vehicle. In the worst case scenario, the stolen vehicle may be used in an incident. On the other hand, in order to recover a stolen vehicle, for example, in the case of a cash transport vehicle, the driver or guard has a wireless switch, and in the event that the cash transport vehicle is robbed, the driver or guard can press this switch. , the vehicle's engine stop device is turned on to prevent the cash transport vehicle from escaping.

(Problem to be solved by the invention) When using such a radio, the distance that the radio waves can reach is very narrow, about 100 meters at most, due to the Radio Law, etc. If you are nearby, it will be stolen right in front of your eyes, so you can take immediate action by pressing the switch, but as with any other vehicle, when you return to the location where you left the vehicle, the vehicle will be stolen. If the vehicle was lost and stolen, even if a switch using such a radio was pressed, radio waves would not reach the vehicle and the vehicle could not be stopped.

In order to solve these problems, we
Publication No. 128153 states that when a vehicle is stolen, when the driver inputs a predetermined theft code from a telephone outside the vehicle to a wireless device inside the vehicle via a wireless communication means, a controller connected to this wireless device activates a horn or A vehicle theft device that outputs a control signal to a theft processing unit that includes a display device, etc., and can take appropriate actions such as issuing an alarm or stopping the engine of a stolen vehicle. A time processing device is disclosed.

However, in the device configured as described above, when a predetermined password code number is input from an external telephone, this password code number is sent directly to the controller from the wireless device inside the vehicle. Therefore, in order to equip a car with a wireless device, it is necessary to modify it to make an electrical connection with the controller, which may cause the wireless device to malfunction due to the modification.
The problem is that the configuration of the entire device becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made based on the above-mentioned problems, and provides a vehicle anti-theft device with a simple configuration that does not require modification of a receiving device that operates by receiving a call signal using a telephone line. It is to be.

[Configuration of the Invention] (Means for Solving the Problems) A first configuration of the present invention includes a receiving unit that is installed in a vehicle and receives a call signal issued when the vehicle is stolen using a telephone line, and this receiving unit. a receiving device comprising a notification means activated by an output signal from the
The engine is equipped with a detection means for detecting the operation of the notification means and outputting a detection signal, a switch means operated by the detection signal, and an engine stop device operated to stop by the switch means.

A second configuration of the present invention is a receiving unit that is equipped on a vehicle and includes a receiving unit that uses a telephone line to receive a call signal issued when the vehicle is stolen, and a notification unit that is activated by an output signal from the receiving unit. a device;
The vehicle is equipped with a detection means for detecting the operation of the notification means and outputting a detection signal, a switch means operated by the detection signal, and an alarm device for causing the vehicle to operate abnormally by the switch means.

(Function) When the vehicle is stolen, when the calling number of the receiving device is dialed using an external telephone, the called receiving device of the vehicle is activated to close the switch means, operate the engine stop device or alarm device, Vehicles can be stopped and alarms can be issued.

Furthermore, when the receiving device of a stolen vehicle is called, an output signal is output from the receiving section of the receiving device to a speaker or indicator lamp serving as an alarming means, and the detecting means detects this operation, and the switch means is activated. Because it operates in a closed circuit, there is no need to modify the receiving device.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. In FIG. 1, 1 is a battery installed in a vehicle. Reference numeral 2 denotes an engine stop device, which stops fuel injection when power is supplied, for example. 3 is a horn equipped on the vehicle, 4 is a flashing circuit for flashing headlights 5, and 6 is a hazard lamp. These engine stop devices 2,
The horn 3, flashing circuit 4, and hazard lamp 6 are normal electrical components that are connected to the battery 1 through the engine key.
It is connected to the battery 1 by a power supply line 7 that is different from the line connected to the battery 1. Reference numeral 8 denotes a relay consisting of a relay coil 9 and a normally open relay contact 10 inserted and connected to the power supply line 7. Reference numeral 11 denotes a receiving device that is installed in the vehicle and can be called using a telephone line, and this receiving device 11 serves as a notification means.
It has a speaker 13 that sounds when a call is made and a display lamp 14 that flashes, and the call signal output from the receiver 12 is transmitted to the built-in speaker 1.
3 and the display lamp 14. Further, this receiving device 11 is called a so-called "pager". A detection circuit 15 for detecting the sound of the speaker 13 is provided in the vehicle close to the receiving device 11. This detection circuit 15 includes a sound pressure sensor 16 such as a microphone that detects the continuous ringing sound of the speaker 13, and an arithmetic circuit 17 that determines whether the detected sound is a ringing sound. Consisting of
The arithmetic circuit 17 makes the determination based on the characteristics of the detected sound, such as the frequency or continuous sound. That is, when the frequency of the detected sound matches the frequency of the ringing tone or when a continuous tone is output for a predetermined period of time, the receiving device 11
is called, the detection circuit 15 outputs a detection signal and drives the transistor Tr for driving the relay 8, thereby operating the engine stop device 2 or the horn 3, the flashing circuit 4, and the hazard lamp 6. Then, the stolen vehicle stops and cannot escape any further, the horn 3 continues to sound, the flashing circuit 4 causes the headlights 5 to repeatedly flash, and the hazard lamps 6 flash, causing the vehicle to operate abnormally. This makes it easier to detect as it is more visible and more likely to be reported. In addition, there are still several receiving devices 11.
Since it can be summoned over a wide area of 10 km, it can be effective even if you return to the parking spot and find that your vehicle has been stolen and is gone.

In this way, by providing the detection circuit 15 that detects the sound caused by the operation of the receiving device 11, there is no need to modify the inside of the receiving device 11 as shown in FIG. This can be prevented, and the configuration is also simple, as the receiving device 11 and the detection circuit 15 are simply attached to predetermined positions.

Further, by interlocking the receiving device 11 with the vehicle and generating an alarm that causes the vehicle to stop or take abnormal actions, a stolen vehicle can be easily found.

FIG. 2 shows a second embodiment, in which the receiving device 1
A phototransistor 18 as a light detection means is provided in the vehicle so as to face one indicator lamp 14 . For example, the phototransistor 18 is covered with a light shielding member along with the receiving device 11 so as not to be activated by light other than the display lamp 14. Then, the receiving device 11 is called, the display lamp 14 blinks or lights up, the phototransistor 18 is turned on, and the engine stop device 2, horn 3, etc. are activated. In this case as well, there is an effect that there is no need to modify the receiving device 11 as in the first embodiment.

Although the embodiments of the present invention have been described in detail above, they can be modified as appropriate within the scope of the gist of the present invention. For example, in the embodiment described above, when the receiving device 11 is called, the engine stop device 2, the horn 3, and the flashing circuit 4
and a configuration in which power is supplied to the warning device by the hazard lamp 6, but at least one of these is shown.
Even if the vehicle is powered individually, it is easy to detect a stolen vehicle. Further, the alarm device may be of a type other than the above-mentioned embodiment. Further, although the relay 8 has been shown to close the power supply line 7, it is also possible to use a relay other than the relay. Also, to stop the ringing signal, an on/off switch provided in a normal receiving device can be used, but the on/off switch can be placed in a position where the thief cannot turn it off. Furthermore, the effectiveness of the anti-theft device can be further improved by adding a device that prevents the engine from starting if a robber disconnects the wire from the receiving device in order to prevent the alarm device from operating.

[Effects of the Invention] As described in detail above, according to the present invention, there is a receiving section that is installed in a vehicle and receives a call signal issued when the vehicle is stolen using a telephone line, and a receiving section that is activated by the output signal from the receiving section. a receiving device comprising a notification means for detecting the operation of the notification means; a detection means for detecting the operation of the notification means and outputting a detection signal; a switch means operated by the detection signal; and an engine stop device operated to stop by the switch means. By providing this, it is possible to provide a vehicle anti-theft device with a simple configuration that does not require modification of the receiving device.

Further, there is provided a receiving device equipped in a vehicle, which includes a receiving section that receives a call signal issued when the vehicle is stolen using a telephone line, and a notification means that is activated by an output signal from the receiving section; By providing a detection means that detects the operation and outputs a detection signal, a switch means that operates based on the detection signal, and an alarm device that causes the vehicle to operate abnormally by the switch means, it is easy to use and does not require modification of the receiving device. Therefore, it is possible to provide a vehicle anti-theft device having a configuration that is suitable for vehicles.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing a first embodiment of the present invention, and FIG. 2 is a circuit diagram showing a second embodiment. 2... Engine stop device, 3... Horn (alarm device), 7... Power supply line, 8... Relay (switch means), 11... Receiving device.

Claims (1)

[Scope of Claims] 1. A receiving unit that is installed in a vehicle and receives a call signal issued when the vehicle is stolen using a telephone line;
a receiving device comprising a notification means activated by an output signal from the receiving section; a detection means detecting the operation of the notification means and outputting a detection signal; a switch means activated by the detection signal; An anti-theft device for a vehicle, comprising: an engine stop device which is stopped by the engine stop device. 2. A receiving unit installed in the vehicle and receiving a call signal issued when the vehicle is stolen using a telephone line;
a receiving device comprising a notification means activated by an output signal from the receiving section; a detection means detecting the operation of the notification means and outputting a detection signal; a switch means activated by the detection signal; A vehicle anti-theft device comprising: an alarm device that causes the vehicle to operate abnormally.