CN2257263Y - Multifunctional theft-proof remote control alarm - Google Patents

Abstract

The utility model relates to a multifunctional theft-proof remote control alarm which belongs to the technical field of theft-proof devices of vehicles. The utility model is mainly composed of a transmitter and a receiver, wherein, the transmitter is mainly composed of the switching circuit of a relay, a signal triggering circuit, an amplifying circuit for alarm signals, and a transmitting circuit for signals; the triggering signals picked up by the signal triggering circuit through a relay causes the power supply of a vehicle to cut off; simultaneously, alarm signals are transmitted; the receiver which is installed on a driver can obtain the alarm signals simultaneously. The utility model has the advantages of reliable theft-proof performance, far distance of remote control and smart structure.

Description

The multifunctional burglary-resistant remote annunciator

The utility model relates to a kind of multifunctional burglary-resistant remote annunciator that belongs to Theft-proof for vehicle device technique field.

At present, this class vehicle anti-theft annunciator is many.Yet ubiquity is the shortcoming of poor reliability in actual applications, though promptly the annunciator of installing on the vehicle is reported to the police, the thief still can drive away car.In addition, driver's receiver on one's body is near excessively apart from the emitter command range on the vehicle, and the user feels to use inconvenient.Just there are the problems referred to above in utility model patent communique (No. 10, volume in 94 years 10) disclosed " automobile burglar, anti-misfortune, remote annunciator " patent (patent No. ZL93213067.4).

The purpose of this utility model is exactly to provide a kind of anti-theft alarm multifunctional burglary-resistant remote annunciator reliable, easy to use for solving disadvantages of background technology.

The purpose of this utility model is achieved in that it mainly forms by being installed in the receiver that emitter on the vehicle and driver carry, and emitter mainly is made up of relay switching circuit, signal triggering circuit, alerting signal amplifying circuit and signal transmission circuit.Receiver mainly is made up of acceptor circuit.The signal triggering circuit is mainly by IC ₁And IC ₂Form bistable trigger-action circuit, IC ₁3 pin succeed the relay J of appliance switch circuit ₁, IC ₂The BG of 3 pin signal amplification circuit taking alarm ₁Base stage, resistance R ₁, R ₂Be connected across power lead and IC respectively ₁, IC ₂Between 6 pin and 7 pin, capacitor C ₂, C ₄Difference cross-over connection IC ₁, IC ₂Between 6 pin and 7 pin and the ground wire, IC ₁And IC ₂2 pin link to each other, be trigger point M in the middle of it, trigger point M cross-over connection capacitor C over the ground ₃BG ₁Emitter-base bandgap grading meet BG ₂Base stage, BG ₂Collecting electrode ic chip taking alarm ₃, IC ₃Output through BG ₂, BG ₄Compound amplification entering signal transmission circuit.Alerting signal process C from the alerting signal amplifying circuit ₁₁, R ₈Produce high-frequency oscillation signal, again through R ₆, C ₁₀The tuned circuit lotus root of forming is bonded to BG ₅Base stage, BG ₅Collecting electrode with alerting signal through modulation circuit L, C ₉Modulation is after C ₈Deliver to antenna.Automobile power source is through the relay J of relay switching circuit ₁Normally closed contact K ₀, K ₁With source switch K ₁, wire fuse BX and regulator block IC ₄Insert signal transmission circuit.The received signal of receiver is through receiving wire with by C ₂₃, C ₂₄, L ₂The modulation circuit of forming enters monolithic frequency modulation ic chip ₅13 pin and 14 pin, IC ₅Output enter BG ₆Base stage, BG ₆Emitter-base bandgap grading is through C ₁₈, R ₁₂Lotus root is bonded to power discharging integrated block IC ₆7 pin, IC ₆1 pin and 3 pin connect loud speaker.At signal transmission circuit BG ₄Collecting electrode and BG ₅The input end cross-over connection has C ₁₂The capacitive feedback amplifying return circuit.

The utility model is compared background technology and is had following advantage: cut off automobile power source when 1, reporting to the police automatically, automobile can not be started; 2, signal transmission circuit is provided with the feedback amplifying return circuit, and making transmits is enhanced, and reception and transmission range is 500 meters.

Fig. 1 is the utility model emitter part electrical schematic diagram.

Fig. 2 is the utility model emitter another part electrical schematic diagram.

Fig. 3 is the utility model receiver electrical schematic diagram.

The utility model is further described by embodiment below in conjunction with accompanying drawing: emitter is installed in the vehicle shelter, and is connected with automobile power source.When the driver leaves vehicle, source switch K is connected, as shown in Figure 1 and Figure 2, a, b, c corresponding a ', b ', c '.IC ₁, IC ₂Constitute bistable trigger circuit, after the M pickoff signals of trigger point respectively through IC ₁, IC ₂2 pin input Triggerless, circuit is in initial condition, and its 3 pin is output as low level.1 pin, 7 pin conductings at this moment, capacitor C ₂, C ₄Can not be charged by short circuit.After trigger point M picked up energizing signal, when 2 pin were triggered by negative-going pulse Vin, output was from the low level to the high level, and at this moment 1 pin, 7 pin end capacitor C ₂, C ₄Through R ₁, R ₂Charging, 6 pin are that the threshold value input end is subjected to triggering and makes circuit upset, output V ₀Saltus step is a low level, and 1 pin, 7 pin conducting are once more prepared for triggering next time.IC ₁Output make relay J ₁Action, and make J _1-2Open contact adhesive control relay J ₂Coil main contact K ₀Be switched to K ₂On, automobile power source is opened circuit; IC ₂Mouth through BG ₁, BG ₂Preposition amplification is input to the warning ic chip ₃Input end, again through BG ₃, BG ₄C is passed through in compound amplification then ₁₁, R ₈Produce high-frequency oscillation signal, this oscillator signal is through R ₆, C ₁₀The tuned circuit of forming, lotus root is bonded to BG ₅Amplify, the high-frequency signal after the amplification is through L, C ₉The loop modulation is through C ₈Delivering to antenna launches.This machine transmitting frequency is 88-108MHz, 500 meters of transmitting ranges.

As shown in Figure 3, from the alerting signal of accepting antenna through C ₂₃, C ₂₄The modulation circuit input IC that constitutes ₅13 pin and 14 pin.IC ₅Output through 2 pin to BG ₆Lotus root is closed amplification, delivers to IC ₆Power gain is supplied with the loud speaker sounding.IC ₅Be monolithic frequency modulation integrated package, this integrated package selectivity is decided by the in-to-in active RC filter, so its peripheral circuit does not need intermediate-frequency transformer, can dwindle the volume of receiver.

Trigger point M in the transmitter circuitry can be connected to automobile motor, starting switch, Das Gaspedal, car body or shift rod as triggering operating switch.Suitably regulate R ₁R ₂And C ₂C ₄, can make emitter change induction alarm into by touch mode alarm.

IC ₁, IC ₂Select NE555, IC ₃Be KD9561, IC ₄Be 7812, IC ₅Be TDA7000, IC ₆Be 2822M.BG ₁, BG ₂, BG ₆Be 3DG6, BG ₃, BG ₄Be 3DG30, BG ₅Be 3DG80.

Claims (2)

1, a kind of multifunctional burglary-resistant remote annunciator, it mainly is made up of transmitter and receiver, emitter mainly is made up of relay switching circuit, signal triggering circuit, alerting signal amplifying circuit and signal transmission circuit, and receiver mainly is made up of acceptor circuit, it is characterized in that:

A, signal triggering circuit are mainly by IC ₁And IC ₂Form bistable trigger circuit, IC ₁3 pin succeed the relay J of appliance switch circuit ₁, IC ₂The BG of 3 pin signal amplification circuit taking alarm ₁Base stage, resistance R ₁, R ₂Be connected across power lead respectively IC is arranged ₁, IC ₂Between 6 pin and 7 pin, capacitor C ₂, C ₄Be connected across IC respectively ₁, IC ₂Between 6 pin and 7 pin and the ground wire, IC ₁And IC ₂2 pin link to each other, be trigger point M in the middle of it, trigger point M cross-over connection capacitor C over the ground ₃

B, BG ₁Emitter-base bandgap grading meet BG ₂Base stage, BG ₂Collecting electrode ic chip taking alarm ₃, IC ₃Output through BG ₃, BG ₄Compound amplification entering signal transmission circuit;

C, from the alerting signal of alerting signal amplifying circuit through C ₁₁, R ₈Produce high-frequency oscillation signal, again through R ₆, C ₁₀The tuned circuit lotus root of forming is bonded to BG ₅Base stage, BG ₅Collecting electrode with alerting signal through modulation circuit L, C ₃Modulation is after C ₈Deliver to antenna;

D, automobile power source are through the relay J of relay switching circuit ₂Normally closed contact K ₀,

K ₁With source switch K and regulator block IC ₄Insert signal transmission circuit;

E, received signal are through receiving wire with by C ₂₃, C ₂₄, L ₂The modulation circuit of forming enters monolithic frequency modulation ic chip ₅13 pin and 14 pin, IC ₅Output enter BG ₆Base stage, BG ₆Emitter-base bandgap grading is through C ₁₈, R ₁₂Lotus root is bonded to power discharging integrated block IC ₆7 pin, IC ₆1 pin and 3 pin connect loud speaker.

2, according to the described annunciator of claim 1, it is characterized in that at BG ₄Collecting electrode and BG ₅The input end cross-over connection has C ₁₂The capacitive feedback amplifying return circuit.

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