JPH03271042A - Burglary preventing device - Google Patents

Abstract

PURPOSE:To control a burglary alarm device through a remote control device actuated by electromagnetic wave by making a remote control circuit generate a control signal when the remote control circuit detects whether an alarm control circuit is in an armed or disarmed state or an alarmed state, and receives the electromagnetic wave having a fixed cord signal. CONSTITUTION:When a remote control circuit 1 is operated by an electromagnetic wave to generate a control signal, an alarm control circuit 2 is changed over to an armed or disarmed state in the case where it is in the armed or an alarmed state, and changed over to the armed state by the control signal generated in the circuit 1 in the case where it is in the disarmed state. In this case, the timer of the circuit 2 is operated by an armed signal generated in the circuit 1 for a fixed time to change over the circuit 2 from the disarmed state to an armed preparing state. The circuit 2 generates an alarm signal when it receives a trigger signal from a switch means provided in a car in its armed state.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an anti-theft device, particularly to an anti-theft device that combines a remote control device and a theft alarm device.

Theft alarm systems for automobiles are known, for example, as disclosed in U.S. Pat. No. 3,781,854. In this automobile theft alarm device, when all the opening/closing parts of the automobile are closed and locked, the theft alarm device is switched from a disabled state to an armed state. If an opening/closing part such as a door, trunk, or hood is opened/closed illegally in an armed state, an alarm is automatically generated, thereby preventing theft of the automobile.

Further, as disclosed in Japanese Patent Publication No. 11509/1983, a remote control lock control device is known that unlocks a lock device using infrared rays containing a predetermined code number. This remote control lock control device includes a transmitting device including a manually operated switch, and receives infrared rays emitted from the transmitting device when the switch is pressed, and detects a predetermined code number included in the infrared rays. and a receiving device that supplies an unlock signal to the lock device. This remote control lock control device can unlock the lock device by emitting infrared rays from a position approximately 1 m or more in front of the sensor section of the light receiving device. Therefore, there is an advantage that the unlocking operation by suppressing the switch of the transmitting device can be simplified and accelerated.

However, in the past, the electromagnetic wave remote control device and the theft prevention device were provided separately, and it was not possible to switch the state of the theft alarm device using the electromagnetic wave remote control device. Furthermore, because the operating status of the theft alarm system is not displayed on the remote control device using electromagnetic waves, the operator cannot understand when the theft alarm system will issue an alarm. First, there are disadvantages in that the theft alarm system may not operate in the event of theft, or the theft alarm system may operate unnecessarily even though the opening/closing part of the vehicle has been unlocked in the correct manner.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and provide an anti-theft device capable of controlling a theft alarm device using a remote control device using electromagnetic waves.

Means for Solving the Problems The anti-theft device of the present invention includes a switch means, an alarm device, and an armed state that generates an alarm signal for activating the alarm device when receiving the output of the switch means, or a display that does not generate an alarm signal. It has an alarm control circuit that can be switched between an armed state and an alarm state that activates the alarm device.

The remote control circuit generates a control signal when it detects an armed state, a disarmed state, or an alarm state of the alarm control circuit and receives electromagnetic waves containing a predetermined code signal. When the alarm control circuit is in the AR111 state or the alarm state, the alarm control circuit is switched to the armed or disarmed state by a control signal from the remote control circuit. Further, when the alarm control circuit is in the disabled state, the alarm control circuit is switched to the disabled state by a control signal from the remote control circuit.

A display device is connected to the alarm control circuit, and a timer of the alarm control circuit is operated for a certain period of time in response to an armed signal from the alarm control circuit, and the alarm control circuit is switched from the disarm 1 to arm state to the arm preparation state.

The display device is activated during the Arm 1 to Ready state, and after the timer has counted a certain period of time, the alarm control circuit is switched from the Disarmed state to the Armed state.

When an electromagnetic wave containing a predetermined code signal is received, a timer of the alarm control circuit operates for a certain period of time, and the alarm control circuit is switched from an armed state to an armed preparation state. After the timer has expired for a certain period of time, the g1 sub-control path is switched from the disarmed state to the armed state. The display device generates different indications when the vehicle is in the armed ready state and when the opening/closing portion of the vehicle is open.

When the remote control circuit is operated by the first electromagnetic wave to generate a control signal, the alarm control circuit is switched from the armed state or the alarm state to the armed state or the day-to-day state.

Also, when the alarm control circuit is in a disabled state,
It is switched to the armed state by a control signal from the remote control circuit.

In this case, the timer of the alarm control circuit is activated for a certain period of time by the armed signal from the remote control device, and the alarm control circuit is switched from the disarmed state to the armed preparation state. The alarm control circuit generates an alarm signal when it receives a trigger signal from a switch means provided in the vehicle in the armed state.

This alarm signal stops when the alarm state is switched from the alarm state to the disarmed state or the armed state by the control signal of the remote control device.

The timer of the alarm control circuit is activated for a certain period of time by the armed signal from the remote control device, and the alarm control circuit is switched from the disabled state to the armed preparation state. The display device is activated during the armed ready state, and after the timer has counted a certain period of time, the alarm control circuit is switched from the disarmed state to the armed state. The display device generates different indications when the vehicle is in the armed ready state and when the opening/closing portion of the vehicle is open.

Fruit-1 Rainbow-Rainbow An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 shows a circuit diagram of a remote control circuit 1. As shown in FIG. The remote control circuit 1 includes a sensor circuit 40 , a state detection circuit 41 that receives a signal from the sensor circuit 40 , and a control signal generation circuit 42 that is activated by the output of the state detection circuit 41 . The sensor circuit 40 includes a one-chip infrared light receiving circuit 50 and an amplifier circuit 51 that amplifies a signal received by the infrared light receiving circuit 50 and supplies the amplified signal to the state detection circuit 41. Amplification circuit 51
has two transistors 52 and 53. The positive line 54 of the sensor circuit 40 is connected to the output port O0 of the state detection circuit 41, and the negative line 55 of the sensor circuit 40 is grounded. Smoothing capacitors 56 and 57 are connected in parallel to the positive line 54 and the negative line 55. Also,
The positive line 54 is a display light emitting diode 58 and a resistor 5.
9 to the output port 02 of the state detection circuit 41.

The emitter of the transistor 52 is connected to the positive line 54 , the base is connected to the light receiving circuit 50 , and the collector is connected to the base of the transistor 53 . The emitter of the transistor 53 is connected to the negative side line and the collector is connected to the input port (2) of the state detection circuit 41 via the diode 0, and is connected to the base of the transistor 62 via the diode 61.

The emitter of the transistor 62 is connected to the power supply, and the collector is connected to the input port I of the state detection circuit 41 via the reset circuit 63. The reset circuit 'JPJ63 is connected between a resistor 64 connected between the collector of the transistor 62 and the ground, a capacitor 65 connected between the collector of the transistor 62 and the input port I7, and between the input port I7 and the ground. It has a resistor 66 and a diode 67 connected in parallel.

The state detection circuit 41 is a CPU composed of a one-chip microcomputer. The input ports I2 to I of the state detection circuit 41 are connected to the ROM 68. ROM68
A reference code is stored in . Status detection circuit 4
1 output ports O1 and 04 have l as a driver circuit.
- Langisthus 0 and 71 are connected via resistors 72 and 73, respectively; The collector of transistor 70 is connected to the inverting input terminal of AND gate 94 of alarm control N2 shown in FIG. 2, and the emitter is grounded. Further, the collector of the transistor 71 is connected to the OR game 1 of the alarm control circuit 2.
-130 and the emitter is grounded. Further, the input capo-1 I5 of the state detection circuit 41 is connected to the output terminal of the RS flip-flop 97 of the alarm control circuit 2 in order to detect the armed state of the alarm control circuit 2. The input port ■ of the state detection circuit 41 is the alarm 1 as a warning N device.
10 is connected to the output of the AND gate 108 of the alarm control circuit 2.

In the above configuration, when a switch of a transmitting device (not shown) is activated, an infrared ray including a predetermined code is generated from an infrared ray emitting diode.

This infrared light is received by the infrared light receiving circuit 50.

The signal generated by the infrared light receiving circuit 50 is transmitted to the amplifier circuit 51.
The signal is supplied to the input port I□ of the state detection circuit 41 via. At the same time, when the amplifier circuit 51 is turned on, the transistor 62 is turned on. Therefore, the reset circuit 6
3, a trigger signal is applied to the input port I7 of the state detection circuit 41, and the state detection circuit 41 is activated. Therefore, the state detection circuit 41 stores the input ports ■,
Stores the light reception signal supplied to the At the same time or after this, the state detection circuit 41 reads the reference code stored in the ROM 68 into RAM (Random Access
Memory) or the like.

Here, the comparison means provided in the state detection circuit 41 compares the received code included in the signal from the transmitting device 1 supplied with 4J (4J) through the light receiving circuit 50 and the reference code stored in the ROM 68. When the received reception code code and the read reference code code do not match, the state detection circuit 41 is not activated.On the other hand, when the reference code code and the reception code code match, the input port ■,
Determine whether the signal is high level or not. When the alarm control circuit 2 is in an armed state or a disarmed state, R
Since the S flip-flop 97 generates a high output or a low output, the alarm control circuit 2 can detect the armed state from the output of the RS flip-flop 97. Also,
When the alarm control circuit 2 is in an alarm state or a non-alarm state, the AND gate 108 generates a high output or a low output, so the alarm control circuit 2 input port 6 can detect the alarm state by the output of the AND gate 108. can. When the alarm control circuit 2 is in a disabled state, that is, when the input port (■) and I6 of the state detection circuit 41 are both receiving low output, the state detection circuit 41 transmits the control signal from the output port (○) to the transistor. 70 for a certain period of time (e.g. 0.5
seconds) send. Therefore, transistor 70 is turned on and a signal is applied to AND gate 94.

The state control circuit 41 detects when the alarm control circuit 2 is in the armed state or the alarm state, that is, when either the input port (2) or I6 of the state detection circuit 41 is receiving a high output,
The state detection circuit 41 sends a control signal from the output port 04 to the transistor 71 for a certain period of time (for example, 0.5 seconds).

Therefore, transistor 71 is turned on and a signal is applied to OR gate 130.

The alarm control circuit 2 includes a key unlock switch 80 that is turned on when the lock # device is unlocked with the key, and a trunk key unlock switch 81 that is turned on when the trunk is unlocked with the key. Further, a key lock switch 82 is provided which is turned on when the lock device is locked with a key. Similar to conventional vehicles, there is a door switch 83 that is turned on when the door is opened, a tamper switch 84 that is turned on when the locking device is illegally broken, and a tamper switch 84 that is turned on when the trunk is opened. A trunk switch 85 and a foot switch 86 that is turned on when the hood is opened are provided. switch 83
86 constitutes a switch means.

In addition, a mechanical keyless lock that does not require a key is used to close the vehicle door. Mechanical keyless locks have a mechanism that automatically locks the door by moving the lock knob on the door to the lock position and then closing the door while pulling the outdoor handle. In order to interlock this mechanism and to detect the locked position of the lock knob, state switches 90 and 91 are provided in the left and right doors of the vehicle, respectively, as state detecting means for detecting the locked position of the lock knob.

The switches 83 to 85 are connected to the input terminal of each one of the ant gate 92 and the OR gate 93, and the foot switch 8
6 is connected to the other input terminal of the AND gate 92 and the OR gate 93. The output terminals of the Android game 1 and 92 and the key lock switch 82 are connected to an AND gate 94, respectively.

Ant gate 94 is connected to timer circuit 96 via OR gate 95. Timer circuit 96 provides an output for, for example, 30 seconds. The output terminal of the timer circuit 96 is connected to a set terminal of an R/S flip-flop 97 and a one-shot multivibrator 99. The Q output terminal of R/S flip-flop 97 is connected to one input terminal of AND gate 98. The other input terminal of AND gate 98 is connected to the output terminal of pulse shaping circuit 100 which is connected to OR gate 93 .

State switches 90 and 91 are connected to one input terminal of AND gate 101, and the output terminal of OR gate 93 is connected to the other input terminal of AND gate 101. The output terminal of OR gate 93 is connected to one input terminal of delay circuit 103 and AND gate 104. and gate 1
The output terminal of AND gate 102 is connected to the first input terminal of AND gate 102, and the second and third input terminals of AND gate 102 are connected to state switches 90 and 91 and a delay circuit 103, respectively. A pulse generating circuit 105 is connected to the other input terminal of the AND gate 104, and an output terminal of the AND gate 104 is connected to an OR gate 121. The display device 120 is a light emitting element such as a light emitting diode or a sounding element such as a buzzer. Display device 120 is connected to the collector of transistor 122, and the emitter of transistor 122 is grounded. The base of transistor 122 is connected to OR gate 121.

An output terminal of the ant gate 98 is connected to a set terminal of the R/S flip-flop 106 and a timer circuit 107. The Q output terminal of R/S flip-flop 106 is connected to starter circuit 112 .

The timer circuit 107 provides an output for, for example, three minutes to one input terminal of the AND gate 108. Ant game-1-1
A pulse generating circuit 114 is connected to the other input terminal of 08. The output terminal of the ant gate 108 is connected to the base of a transistor 109, the collector of the transistor 109 is connected to the alarm device 110, and the emitter is grounded. As the warning bag [110], the horn or lamp of the vehicle can be used as is.

The output terminal of timer circuit 107 is connected to the reset terminal of R/S flip-flop 106 through one-shot multivibrator 111 and OR gate 113, and is also connected to the clear terminal of timer circuit 96 through OR gate 120.

Further, the state switches 90 and 91 are connected to a clear terminal of a timer circuit 96 via an inverter 21 and an OR gate 120.

The key unlock switch 80 and the trunk key unlock switch 81 are connected to the pulse forming circuit 131 via the or game 1-130. The output terminal of the pulse forming circuit 131 is connected to the OR gate 120 and the OR gate 113. The output terminal of the one-shot multivibrator 99 is connected to the reset terminal of the R/S flip-flop 132, and the output terminal of the OR gate 95 is connected to the set terminal of the R/S flip-flop 132. The Q output terminal of the R/S flip-flop 132 is connected to one input terminal of the ant gate 133. A pulse generating circuit 139 is connected to the other input terminal of the ant gate 133.

The output terminal of AND gate 133 is connected to OR gate 121.

In the alarm control circuit 2, the AND gate 92 generates an output when all opening/closing parts of the vehicle are closed and the door switch 83, tamper switch 84, trunk switch 85, and foot switch 86 are all off. Further, when the lock device is locked with the key or when an output is generated from the output port ○ of the state detection circuit 41 of the remote control circuit 1 using electromagnetic waves, the ant gate 94 generates an output,
Timer circuit 96 is activated. The timer circuit 96 has approximately 30
The time in seconds is counted, and during this counting, the AMT is in the ready state. When 30 seconds have passed, an output is generated from the timer circuit 96, the R/S flip-flop 97 is switched to the set state, and an output is generated from the Q output terminal. This state is an armed state. This armed state also applies when a mechanical keyless lock operation is performed.

In addition, a mechanical keyless lock that does not require a key is used to close the vehicle door. A mechanical keyless lock has a mechanism that automatically locks the door when the lock knob of the door is moved to the lock position and the door is closed while the out-handle is pulled. In order to interlock this mechanism and to detect the locked position of the lock knob, status switches 90 and 91 are installed in the left and right doors of the vehicle as status detection means for detecting the locked position of the lock knob, respectively.
is provided.

In the alarm control circuit 2, all opening/closing parts of the vehicle are closed, and the door switch 83. When tamper switch 84, trunk switch 85, and foot switch 86 are all off, OR gate 93 generates a low level output. Therefore, the other input terminal of AND gate 101 is at a high level. In this state, when the door on the passenger side is locked and closed, the status switch 9↓ is turned off. Further, when the driver's seat side door lock knob is pressed and the door is closed by pulling the door handle from the outside of the vehicle, the driver's seat door is also locked and the status switch 90 is also turned off. When both state switches 90 and 91 are turned off, AND gate 101 is turned on. Therefore, the anime game 1.102 is also turned on. This is because the delay circuit 103 switches to the armed state only when the driver's side door is finally locked. The output generated from AND gate 102 causes pulse shaping circuit 138 to generate an output to activate timer circuit 96 via OR gate 95 . Therefore, as mentioned above, the R/S flip-flop 9
7 can be set to switch to armed state.

In the armed state, when any one of the opening/closing parts is opened, the door switch 83. One of the tamper switch 84, trunk switch 85, and foot switch 86 is turned on. Therefore, R/S flip-flop 106 is set through OR gate 93 and AND gate 98, and driving of starter circuit 112 is blocked. At the same time, the timer circuit 107 is activated and the
An intermittent signal is applied to the base of transistor 109 via 108 . Therefore, the alarm bag @110 is activated for 3 minutes. The key unlock switch 8 is activated when the R/S flip-flop 97 is in the armed state in which it is maintained in the set state, in the alarm state in which the alarm device 110 is activated, or in the armed ready state in which the timer circuit 96 is activated.
When the 0 or trunk key unlock switch 81 is turned on, the timer circuits 96 and 107 are cleared, the R/S flip-flops 97 and 106 are reset, and the state is switched to a disarmed state.

Display device 120 may be driven in various ways. For example, when timer circuit 96 is activated, R/S flip-flop 132 is set. Therefore, and gate 1
33 and the transistor 122 via the OR gate 121
An intermittent signal is supplied to the base of the For this reason, the display bag [
120 is activated intermittently. Further, when the timer circuit 96 is operating even though a part of the switching section is open due to a malfunction, the ant gate 1-104 is turned on and the transistor 122 is operated intermittently via the OR gate 121. In this case, pulse generating circuits 105 and 139 generate outputs of different frequencies.

Therefore, when the AND gate 104 is turned on, the display bag 51120 is driven at a different frequency.

The operator can close the opened opening/closing part and shift to the armed state again.

Further, in the above embodiment, the theft prevention of a vehicle having a plurality of opening/closing parts has been described, but it is clear that the antitheft device according to the present invention can be applied to locking parts or opening/closing parts of motorcycles, buildings, etc.

The anti-theft device of this invention skillfully combines a remote control circuit and an alarm control circuit to control the alarm control circuit via the remote control device and control a specific state of the alarm control circuit. Since it can be displayed, it is possible to achieve great operational convenience and to reliably prevent theft.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of a remote control circuit used in the anti-theft device according to the present invention, and FIG. 2 is a circuit diagram of an alarm control circuit used in combination with the electric circuit of FIG. 1. 1. 4-way operation circuit, 20. Alarm control circuit, 82-86
1. switch (switch means),! J6. . Timer, 110° alarm (alarm device), 120° display device,

Claims (3)

[Claims] (1) Switch means, an alarm device, and an armed state in which an alarm signal that activates the alarm device when the output of the switch means is received, a disarmed state in which it does not occur, and an alarm state in which the alarm device is activated. a remote control circuit that detects an armed state, a disarmed state, or an alarm state of the alarm control circuit and generates a control signal when electromagnetic waves containing a predetermined code signal are received; When the alarm control circuit is in the armed state or alarm state, the alarm control circuit is switched to the armed state or disarmed state by the control signal of the remote control circuit, and when the alarm control circuit is in the disarmed state, the remote control circuit is switched to the armed state or disarmed state. An anti-theft device characterized in that an alarm control circuit is switched to an armed state by a control signal. (2) A display device is connected to the alarm control circuit, and the timer of the alarm control circuit is activated for a certain period of time by the armed signal of the alarm control circuit, and the alarm control circuit is switched from the disarmed state to the armed preparation state. When the display device is activated and after the timer has counted a certain amount of time,
The anti-theft device according to claim 1, wherein the alarm control circuit is switched from a disabled state to an armed state. (3) When receiving electromagnetic waves containing a predetermined code signal,
A timer of the alarm control circuit operates for a certain period of time, the alarm control circuit is switched from a disabled state to an armed preparation state, and after the timer has counted a certain period of time, the alarm control circuit is switched from a disarmed state to an armed state,
The anti-theft device according to claim 1, wherein the display device generates different displays when the vehicle is in the armed preparation state and when the opening/closing portion of the vehicle is open.