CN2058891U

CN2058891U - Vehicle theft-proof alarming device with timing digital coding

Info

Publication number: CN2058891U
Application number: CN89220028U
Authority: CN
Inventors: 李庆昌; 李忠
Original assignee: HUA'AN ELECTRONIC EQUIPMENT FACTORY HAIDIAN DIST BEIJING
Current assignee: HUA'AN ELECTRONIC EQUIPMENT FACTORY HAIDIAN DIST BEIJING
Priority date: 1989-11-28
Filing date: 1989-11-28
Publication date: 1990-07-04

Abstract

The utility model discloses a device which sends out alarm signals when the vehicle is stolen to inform people that the vehicle is stolen. In the utility model, a theft-proof alarming device is connected in the original circuit system and the operation mechanism (such as a battery main switch and a steering lamp) of a vehicle, wherein, the theft-proof alarming device is composed of a timing circuit, a counter, an encoding driver, an alarm circuit, a moving sensor, and an electric relay. The owner of the vehicle can conveniently use a code by an operation switch to make the theft-proof alarming device under the state of disarming, or alerting, or alarming. The utility model has the advantages of simple structure, small size, low cost, and strong confidentiality, so the owner of the vehicle can use the utility model conveniently and reliably.

Description

Vehicle theft-proof alarming device with timing digital coding

The utility model belongs to instrument class.

The utility model is to be used in vehicle to send a kind of device that alerting signal indication vehicle is stolen or plundered when stolen.

The various vehicles of producing in the market and selling, the overwhelming majority does not have anti-theft measure.Even have few vehicle that anti-theft measure is arranged, but need add operating mechanism, as keyboard etc.And confidentiality is poor, also is difficult for solving the rain and sun problem.

The utility model is just at the problem of above existence, and is developed into the theft-proof timer counter anti-theft coding alarming of a kind of energy device.

Below in conjunction with accompanying drawing the utility model is elaborated:

Fig. 1. be the frame principle figure of this burglar alarm;

Fig. 2. be the circuit diagram of this burglar alarm;

Among Fig. 1,1 is timing circuit, and 2 is counting machine, and 3 are the coding actuator, and 4 is warning circuit, and 5 is movable sensor, and 6 is relay, and 7 is loudspeaker, K ₁Be battery isolator control, K ₂Be turn signal swich.

Of the present utility model being characterised in that: in original circuit of vehicle, insert timing circuit 1, counter 2, coding driver 3, warning circuit 4, movable sensor 5, relay 6, loudspeaker 7.

This anti-theft warning circuit passes through K₁、K ₂Closed and disconnected, use IC₁C_PTermination is subjected to the number of times of password pulse to control this anti-theft warning circuit to be in disarm state, the state of alert or alarm condition.

Principle of the present utility model is: utilize the original operating mechanism of vehicle (battery isolator control, turn signal swich, power supply, steering indicating light etc.), in the specific time, must open turn signal swich after opening main supply switch.Send the very brief sound from loudspeaker and count, behind the guide number of regulation, close turn signal swich immediately, annunciator just is in disarm state, can start vehicle.Otherwise annunciator is on the alert, any key fail to start vehicle.And behind specific time, report to the police.Whenever move vehicle No. one time, warning n second (n can decide as required).

Disarm state can be held always, and no matter battery isolator control or turn signal swich switch how many times as long as no longer be set to the state of alert, then are in disarm state always.Therefore the car owner is easy to use, does not need every switch once, will remove once, and comfort level is the same with being unkitted burglar alarm.And might be stolen the time, then a/s method be on the alert annunciator.

Be that embodiment further specifies below with the motor bike: its schematic diagram as shown in Figure 2.Timing circuit has two parts: a part is by C ₂, R ₇, R ₄, R ₅, BG ₁, form; Another part is R ₁, R ₂, R ₁₁, C ₄, C ₅, IC ₂, IC ₃, R ₁₃, form IC ₁Be counting machine R ₈, BG ₃, BG ₄Form the coding actuator, J ₁, J ₂Be relay, T ₁, T ₂Be movable sensor, BG ₈, BG ₉, R ₁₃, R ₁₄Form warning circuit, L connects loudspeaker, and DH connects the firing circuit of vehicle.

Open the battery isolator control K on the car ₁, the starting timing circuit, this hour counter is in count status, opens turn signal swich K ₂, the flashing signal of steering indicating light is sent into counting machine and is counted, and gives when deciding number of times when counting, and closes turn signal swich, and counting stops.Timer is until 30 seconds hour counters are closed, and it is all invalid that send into signal this moment again.Counting machine adopts cmos circuit (also can adopt other circuit), and the output of 4017 counting machines makes the relay switching on the ignition circuit through driving circuit, and vehicle just can normally start, and warning circuit can not be reported to the police because of short of electricity.When need change alarm condition over to the state of alert, close general supply after 15 seconds timer output should be low level, connect total power switch again, in 10 seconds, connect turn signal swich flash of light twice (also can decide as required) and close turn signal swich, the output of this hour counter does not meet gives fixed sign indicating number, can not cutin relay, promptly be on the alert.Warning circuit has electricity, and as moving vehicle, then movable sensor makes warning circuit produce impulse singla, and loudspeaker send interrupted chimes of doom, and driving engine also can not start owing to the firing circuit access failure.

Circuit of the present utility model and simple in structure, volume is little, cost is low, confidentiality is high, anti-theft is strong, need not install the operating mechanism that exposes additional, therefore installs hidden. Do not see from appearance whether alarm is housed, destroy to prevent the bad person, can separate preferably again rainproof, the sun-proof problem of rhymed formula. The electronic device of this circuit also electronic device of available other model replaces.

Claims

1, a kind of vehicle anti-theft annunciator of timer counter coding is by battery isolator control K ₁, turn signal swich K ₂, devices such as steering indicating light, power supply form, it is characterized in that: in primary circuit, insert timing circuit 1, counting machine 2, coding actuator 3, warning circuit 4, movable sensor 5, relay 6, loudspeaker 7, main supply switch K ₁Connect timing circuit, the output of timing circuit meets the C of counting machine _PEnd, K ₂Connect counting machine, by control K ₁, K ₂The switch number of times make the output after the counter works connect the coding actuator.When this device was in disarm state, the firing circuit of vehicle was connected in the output of coding actuator through relay; When the output of counting machine does not meet the output circuit taking alarm of coding actuator when giving fixed sign indicating number, the output of movable sensor circuit taking alarm.