JPH023563A - Theft preventing system for automobile - Google Patents

Abstract

PURPOSE:To prevent the unlocking of a door with an unlawful means by installing a sensor in a door locking mechanism, which detects the insertion of a plate, etc. therein for unlawful unlocking, and actuating an alarm with its output and the output from an alarm driving means. CONSTITUTION:A door of an automobile is equipped with a door locking mechanism 40 at a lower position inside the door body and a door cylinder lock 100 at a position thereabove. In such a case, a sensor 41 comprising a photoelectric element, etc. for detecting the insertion of a strip of plate 59 is installed at an appropriate place along the route through which the strip of plate 59 is passed by a thief in an attempt to release the door locking mechanism 40 which locked a door with a door key. In addition, an alarm driving means 12 consisting of a remote controlled transmitter 10 and a receiver 11 is installed, for an example. When an output signal is emitted form the sensor 41 while an output signal is being emitted from the driving means 12, an alarm 14 is operated by a controlling means 9 to prevent the theft.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an automobile theft prevention system, and more particularly to an automobile theft prevention system capable of dealing with cases where a car door is unlocked and stolen.

(b) Prior Art Conventionally, in order to prevent theft, a car owner (driver) closes the windows and locks the car door with a door key when leaving the car.

(e) Problems to be Solved by the Invention However, while the vehicle is parked, a thief inserts a wire or a fake key into the door lock and unlocks the door. By inserting a strip-shaped plate through the gap between the door and the door body and directly operating the door lock mechanism, the door lock can be unlocked and the car stereo or air conditioner inside the automatic LL can be stolen.

In view of the above problems in conventional car theft prevention, the present invention has been devised to provide a car theft prevention system in which an alarm is issued before the door is opened when a thief performs the above-mentioned acts, thereby making it possible to more reliably prevent the car from being stolen. The purpose is to provide a system.

(d) Means for Solving the Problem The automobile anti-theft system of the invention of claim 1 is attached to a door lock mechanism, and detects insertion of a foreign object such as a plate or a rod into the door lock mechanism. A sensor that
'An alarm device that issues an R alarm, an alarm drive means that outputs a signal to drive the alarm device, and an output 4 frame τ of the above sensor.
The above-mentioned object is achieved by providing a control means for inputting a signal and an output signal of the alarm ffl operation means and causing the alarm to generate an alarm based on these output signals.

The invention of claim 2 of the present application provides a first sensor that is attached to a door lock mechanism and detects that a foreign object such as a plate or a rod is inserted into the door lock mechanism; The tpJ2 sensor detects when a door key or other object is inserted into the Schilling lock, the tItIl device that issues an alarm, and the Wtl device are activated! An alarm driving means for outputting a signal to cause the alarm to be activated; an output signal of at least one of the first sensor or the second sensor; and an output signal of the alarm driving means; The above object is achieved by comprising a control means for causing the alarm device to issue an alarm based on the above.

(e) Effect The invention of claim 1 has the above configuration, and the car owner (
When the driver (driver) leaves 41, the alarm driving means sets the alarm to be activated. When a thief inserts a strip through the gap between the car window and the door body, the sensor detects this and turns on the strip. As a result, the alarm went off! The control means for generating l is based on the output signal from the alarm driving means and the sensor,
It has the effect of causing the alarm device to issue an alarm.

On the other hand, if the owner of the own IM 11 or a person authorized by the owner disables the alarm in advance by turning off the alarm drive means and/or sensor, the owner of the IM 11 can prevent the door key from being in his possession. In the event of an emergency such as neglect, the alarm will not sound even if you insert a band plate into the gap between the military window glass and the door body and unlock the door.

The invention of claim 2 of this M is that when a car driver leaves the car,
The alarm driving means sets the alarm to an off state so as to drive it. Therefore, when a thief inserts a foreign object such as a counterfeit key into the military door lock, or inserts a strip plate through the gap between the window glass of 111 and the door body, the first or second sensor is turned on. As a result, the control means for causing the alarm to issue an alarm has the function of causing the alarm to issue an alarm based on the output signals from the alarm driving means and the sensor.

On the other hand, if the vehicle owner or a person authorized by the vehicle owner deactivates the alarm in advance by turning off the alarm drive means and/or the sensor, the vehicle owner or a person authorized by the vehicle owner can automatically activate the door lock by turning off the alarm drive means and/or sensor. Even if the door key is inserted, the alarm will not sound.

(') EXAMPLES The present invention will be explained in detail based on Examples below, but the present invention is not limited thereto.

FIG. 1 is a perspective view of a door sill lock of an embodiment of the automobile theft prevention system according to the present invention, and FIG. 2 is a schematic cross-sectional view of the door sill lock.

fjS1 and FIG. 2, the door sill lock 100 consists of a cylindrical outer sill 1 and an inner sill 2 mounted inside the outer sill 1, and the inner sill 2 is rotatably installed inside. It also has a flat key insertion hole 3 in the center, and the door key 2 is inserted into the key insertion hole 3.
00 is inserted.

Further, holes 4, 4 are bored in the outer sill 1, and holes 5, 5 are bored in the inner sill 2, respectively. These holes 4, 4, 5, 5 are provided with a door key 20 in the inner cylinder 2.
0 is not inserted, they are bored so as to communicate with each other to form a through hole X.

That is, unless the door key 200 is inserted and turned, the inner sill 2 is always positioned at a predetermined position on the outer sill 1 by the biasing force of the spring S.
With the silling portion 2 located at the predetermined location, the holes 4, 4, 5, 5 are aligned with each other to form a through hole 61.

Further, a sensor 6 is attached to the holes 4, 4 of the outer cylinder 1 to detect whether a door key 200 or other object is inserted into the door lock 100. Details of this sensor 6 will be described below. Explain.

The sensor 6 is, for example, an optical sensor having a light emitting element and a light receiving element, or a proximity switch such as a limit switch that operates upon contact with the door key 200 or other foreign matter.

To explain in detail the optical sensor among the sensors 6, the optical sensor includes a light emitting diode 61 and a transducer 62.

That is, in the outer cylinder 1, one of the TL 4
A light emitting diode 61 is fitted into the hole 4, and a 7-to-trannostar 62 is fitted into the other hole 4. Therefore, in a state where the through hole X is formed, the light emitted from the light emitting diode 61 is configured to pass through the through hole X and enter the seven second transistor 62.

Further, when a limit switch is used as the sensor 6, the switch 63 is installed in the hole 4 of the outer sill 1, and the contactor 63 is attached as shown in FIG.
A is installed so that it slightly faces into the hole 5 of the inner sill 2. Then, insert the door key 2 from the key insertion slot 3 above.
By inserting 00*, it may be configured so that it contacts the contactor 63a, turns the sensor 6 on, and issues an output signal.

FIG. 4 is a front view showing an embodiment of the present invention in which another sensor is attached to the door lock 1flb!. t and each device around them.

In FIG. 4, 42 is a door body, and 43 is a window lath. The door lock mechanism 40 has a door body 42
installed in a lower position inside the The door lock 1oo is attached above the door lock R structure 40 and exposed to the outside. 44 is a knob for opening the inside door, 45 is a knob for opening and closing the outside door, and 46 is a knob for opening and closing the outside door. There is a lock knob provided.

FIG. 5 is a perspective view showing the detailed structure of the door lock fitting groove 40.

The sensor 41 is connected to the door lock mechanism 40 or the door lock 8! It is disposed at a suitable location in the space between the structure 40 and the door glass 43.

In other words, the proper place is the door lock structure 40 where the door is locked by the door key 200, when the thief holds the strip plate 5.
For example, the link portion 5 connected to the door lock 100 in FIG.
The light emitting diode 411 of the optical sensor 41 is placed around the lower end of 0.
．． 7 Ototransistors 4 second are arranged.

That is, in FIG. 5, 51 is the inner door opening/closing 7.
A link portion 52 is connected to the knob 44, and a link portion 52 is connected to the outer door closing knob 45.

FIG. 6 is a block diagram of an embodiment of the automobile theft prevention system according to the present invention.

The seventh transistor 62 of the sensor 6 is connected to the base of another transistor 7. The output of this transistor 7 is connected to a CPU of a computer as an example of control means 9 via an I10 interface 8. In addition, the 7-channel transistor 422 of the sensor 41
has a similar structure, and is connected to the CPU 9 via I10 ink 7 ace 8.

On the other hand, the second alarm driving means is a means for transmitting a signal No. 43 for driving the alarm 14, which will be described later, and for example, as shown in FIG. has. The remote control transmitter 10 is a means for transmitting radio waves with an h-wave number specific to each vehicle. As long as there is no risk of interference with the frequencies of other cars (for example, interference is prevented by methods such as area allocation), the frequency can be shared to some extent with the frequencies of other vehicles. 101 is an antenna section, 102 is a transmitting section, and 103 is a control section that controls each of these sections.

The receiver 11 is a means for receiving radio waves transmitted from the remote control transmitter 10.

This receiver 11 is set in an automobile.

This receiver 11 is connected to the CPU 9 via the ■10 interface 13.

Above I! The second alarm driving means does not necessarily have to be a remote control system that transmits radio waves, or may be a remote control system that transmits light, or instead of these, it may be provided, for example, on the outside of the car body. It may be possible to transmit the drive No. 53 to the computer by directly inserting the second alarm drive means into the connector section.

In this case, the vehicle owner or a person authorized by the vehicle owner may prevent the generation of the drive signal by re-inserting the second alarm drive means into the connector section, or may prevent the generation of the drive signal by inserting the second alarm drive means into the connector part, or may prevent the generation of the drive signal by inserting the alarm drive means 2 into the connector part, or by installing a drive signal provided on the outside of the vehicle body. By directly inserting the second alarm driving means into the connector part, a driving signal is transmitted to the computer, which is stored in the computer. Next, the vehicle owner or a person authorized by the vehicle owner opens the door. 13111 may be configured to be turned off by remote control.

The alarm 14 is an automatic buzzer that generates an abnormal alarm sound.
This means horns, red light lamps emitting red light, or a combination of these. The alarm device 14 is connected to the CPU via an I10 interface 15.

A ROM memory 91 is connected to the CPU. In the ROM memory 91, when the output signal from the receiver 11 and the output signal from the sensor 6 are input to the CPU 9, the CPU 9 sends an alarm signal to the alarm device 14 based on both output signals. A program for outputting and generating an alarm is stored.

Also, the RAM memory 92 is 1. It is a writable and readable memory connected to the CPU 9 and used for the operation of the CPU 9.

FIG. 17 is a block diagram of another embodiment of the present invention.

In FIG. 7, the control means 9 includes an OR circuit 7 of logic elements.
0, an AND circuit 71, etc. The output of the optical sensor 6 and the output of the optical sensor 41 are input to the OR circuit 70, and the AND circuit 71 inputs the output signal from the receiver 11 and the output signal from the OR circuit 70. Based on the output signals of both of them, a drive signal is output to the alarm device 14 to generate an alarm.

FIG. 8 is a block diagram of yet another embodiment of the present invention.

In FIG. 8, the control means 9 includes a first switch 81 connected to the sensor 6 and a second switch 81 connected to the sensor 41.
, and a series circuit including a third switch 83 connected to the receiver 11. In this case as well, the control means 9 inputs the signal from the sensor 6.41 and the signal from the receiver 11, and when at least one of the signals from the sensor 6.41 and the output signal from the receiver 11 is on. Only if, i.e. based on these output signals,
A drive signal is output to the alarm device 14 to generate an alarm.

Next, the operation in the case where an optical sensor is used as the sensor 6 in the above embodiment will be described in detail.

When the driver leaves the car, close the windows and lock the doors, and then use the remote control to send ff1ax.

sends a signal. The output signal is sent to the receiver 11
and input to the CPU (control means) 9.

In such a situation, a thief approaches the car and inserts a fake door key or similar foreign object into the door sill lock on the strip or bar.
00 and try to open the door. Since the sensor 6 is attached to the door sill lock 100 as described above, when the sensor 6 is inserted or rotated, the penetrating state of the through hole X disappears and light is blocked. As a result, the sensor 6 detects the insertion of the foreign object. The ON output of the sensor 6 is input to the CPU 9 through the 10 interface 8.

Also, the thief inserts the strip plate 59 through the gap between the window glass 43 and the door body 42 of the car, and locks 8! attempt to unlock the system 40. However, when the plate 59 is inserted, the light of the sensor 41 in the lock mechanism 40 is blocked by the presence of the plate 59 and outputs an on signal. The ON output of this sensor 6 is input to the CPU 9 through the I10 interface 8.

In these states, the CPU 9 recognizes that an ON signal is input from the receiver 11 and the sensor 6 or 41, and outputs an alarm signal to the alarm device 14. Therefore, even if a thief attempts to open the door with a foreign object, the alarm buzzer will sound before the door is opened, preventing theft. The length of time the buzzer sounds may be set in advance by the CPU 9, or may be set by the CPU (control means) 9.
It may be configured to operate until the switch is turned off.

On the other hand, if the vehicle owner or a person authorized by the vehicle owner wishes to access the vehicle using the vehicle door key, the alarm driving signal is canceled by the remote control transmitter 10 that the vehicle owner has. As a result, move the door key to key cylinder 1.
00, an ON signal is output from the sensor 6, but an output signal from the receiver 11 is not input, so there is no fear that an alarm will be issued.

Further, in the embodiment of FIG. 7, the OR circuit 70 and the AND circuit 9 are also the series circuits 81, 82, 8 of the embodiment of FIG.
Similarly to the CPU 9, the receiver 11 and the sensor 6 or the sensor 41 (C) are turned on (recognizes that the number i is being input), and outputs an alarm signal to the alarm device 14.

That is, in the present invention, the sensor 6 detects the presence of the door key 200 or a foreign object and sounds an alarm before the thief breaks into the car door, while the car owner or a person authorized by the car owner sounds the alarm. If the drive of the alarm is canceled in advance by turning off the drive means and/or sensor, the alarm will not sound even if the door key is inserted into the door slot 3 and the door lock is unlocked. .

(g) Effect of the invention As is clear from the above description, the invention of claim 1 is installed in a door lock Rv4, and a foreign object such as a plate or rod is inserted into the door lock Rv4. The alarm is equipped with a sensor that detects this, and an alarm driving means that outputs a signal to drive the alarm, and when the output signals of both the sensor and the alarm driving means are detected, the alarm is activated based on those output signals. Since the alarm is generated when a thief tries to open the car door using a strip or the like, the alarm will sound, thereby preventing theft of the car and the car air conditioner inside the car.

The invention of claim 2 of ar1 of this application is door lock 8! A first sensor is attached to the door lock mechanism and detects when a foreign object such as a plate or a rod is inserted into the door lock mechanism, and a first sensor is attached to the door lock mechanism to detect when a door key or other foreign object is inserted into the door lock. When the sensor of ttS2 and the alarm drive means that outputs the signal to drive the alarm are in the on state,
Since the alarm will generate an alarm, it can be used not only when a thief tries to open the door by inserting a strip into the window, but also when a thief tries to open the car door by inserting a door key etc. into the door lock. This also has the effect of sounding an alarm and preventing theft of the automatic 1 and the car inside. On the other hand, the owner of the vehicle or a person who has received permission to do so deactivates the alarm by turning off the alarm drive means and/or sensor in advance, so the owner of the vehicle or the person who has received permission to do so deactivates the alarm by turning off the alarm drive means and/or sensor, so he/she automatically attaches the door key to the door lock. Even if I insert it, the alarm does not sound.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a door sill lock showing one embodiment of the automobile theft prevention system according to the present invention, Fig. 2 is a sectional view of the door sill lock, and Fig. 3 is a door sill lock showing another embodiment. FIG. 4 is a front view showing a car door lock mechanism of the automobile anti-theft system, FIG. 5 is a perspective view of the door lock mechanism, FIG. 6 is a block diagram showing an embodiment thereof, and FIG. This figure is a block diagram showing another embodiment of the above-mentioned automobile theft prevention system, and FIG. 8 is a block diagram showing still another embodiment of the automobile theft prevention system. 1...Outer cylinder, 2...Inner cylinder, 6,41・
...Sensor, 9...Control means, 10...Alarm drive means, 14...Alarm, 50...Link section, 100
...Door shilling lock, 200...Door key

Claims (2)

[Claims] (1) A sensor attached to the door lock mechanism that detects when a foreign object such as a plate or rod is inserted into the door lock mechanism, an alarm that issues an alarm, and a signal that outputs a signal that drives the alarm. An automobile characterized in that it is equipped with an alarm drive means, and a control means that inputs the output signal of the sensor and the output signal of the alarm drive means and causes the alarm to generate an alarm based on these output signals. Anti-theft system. (2) A first sensor that is attached to the door lock mechanism and detects the insertion of a foreign object such as a plate or rod into the door lock mechanism, and a first sensor that is attached to the door sill lock and a door key that is attached to the door sill lock. or a second sensor that detects the insertion of another object, an alarm that issues an alarm, an alarm driving means that outputs a signal to drive the alarm, and the first sensor or the second sensor that outputs a signal that drives the alarm. A car theft characterized by comprising: a control means that inputs an output signal of at least one of the sensors and an output signal of the alarm driving means, and causes the alarm to generate an alarm based on these output signals. prevention system.