CN2176936Y - Intelligent anti-theft alarm - Google Patents

Abstract

The utility model provides an intelligent anti-theft alarm which belongs to the technical field of the automatic remote control code language. The utility model is composed of a compression code sender and an alarm controller. The utility model has the functions of intelligent judgment, language alarm, safe alarm release, pushing prevention, lifting prevention, disassembly prevention, theft prevention and hijacking prevention. The utility model has the advantages of convenient installation, convenient use and strong applicability.

Description

Intelligent anti-theft alarm

The utility model belongs to automatic remote control language alarm technical field.

The annunciator series products is used more extensive.CN89103041 has put down in writing a kind of car alarm.This detectors is more complete, but complexity is installed, and confidentiality is poor, and suitable crypto control unit lead-in wire can find annunciator and be dismantled, and with car loudspeaker warning DeGrain, if percussion promptly can be reported to the police unintentionally, does not have judgement easily to produce wrong report once.In addition, when the people robs car, before getting off, the driver must remove password earlier, if no chance is removed the function that password has just been lost anti-abduction.The driver gets on the bus and must remove warning earlier, not so can cause wrong report.

In order to overcome the above-mentioned many disadvantages that prior art exists, develop a kind of later-model intelligent burglar alarm with judgement.

Therefore, it is a kind of for motor bike that the purpose of this utility model is to provide, the intelligent burglar alarm that automobile is used.

This anti-theft alarm is made up of compression code sender and alarm controller two parts.

One, it is made up of compression control circuit, encode circuit and radio frequency part to compress code sender, and it is that a kind of manual continuously emission with conventional remote controller is modified into the interruption automatic launcher.Adopted present advanced person's coding special IC VD5026 in this compression code sender.This ic pin is arranged and is seen Fig. 6.Pin 18 power connection positive poles wherein, pin 9 ground connection (negative pole), pin 2-8,10-13 are coding side, and pin 14 is a control end, and active potential triggers once, pin 17 outputs one string data.During pin 14 ground connection, the continuous output data of pin 17 meetings, pin 15-16 is an oscillation resistance.Coding side has four kinds of wiring states, promptly connects positive and negative, pin 1, sky.So have 4 Repeated code not.

The circuit diagram of compression code sender as shown in Figure 3.Radio frequency part adopts single tube inductance of three-point oscillating circuit, the simple working stability of circuit.R2 is an isolation resistance among Fig. 3, and C3 is a positive feed back electric capacity, and C4 and L resonance for spark in reduced volume and the minimizing car disturbs, are selected superhigh frequency for use.Make C4, L resonance at 250-450MHZ, BG is the HF oscillation pipe, and GZL is a high frequency choke, and C1 is a decoupling capacitance, and the base stage that data-signal is given BG by R2 is the base stage modulation.Compression controller is seen Fig. 5 with TC4069() six not gates in two not gates form the ulf pulse oscillators, its cycle was about about 6.6 seconds, launched about 0.5 second.D is a charging diode among Fig. 3, and R1 is a discharging resistance.C2 is a time constant electric capacity, and TC4069 pin 6 output negative-going pulses trigger IC2(VD5026) control end.Be to shorten the signaling time, getting encoding and decoding oscillation resistance R3 is about 330K, take above-mentioned means after, make mutual co-channel interference in efficient range, reduce to sixth.Power consumption reduces to 1/12nd.

Two, alarm controller, it is made up of receiver, amplifier, filter, shaper, demoder, time delay circuit, vibration sensor, LISP program LISP, acoustics circuit and executive circuit, sees Fig. 1 and Fig. 2.Fig. 1 is the circuit diagram of motor bike alarm controller.Fig. 2 is the circuit diagram of auto alarm controller.Introduce the effect of each several part circuit original paper below respectively.

1, receiver is adjusted for simplifying circuit and being convenient to, and adopts superregenerative receiver, R1 is a biasing resistor among Fig. 1 and Fig. 2, and R2 is an emitter resistance, and R3, R4 are load resistor, C1 is for extinguishing control capacitance, and the resonant frequency of C2 and L is corresponding with the signaling frequency, and GZL is a high frequency choke, C3 is a positive feed back electric capacity, DZL is a filter inductance, and C4 is a filter capacitor, and C5 is a coupling capacitance, adopt direct current inverse feedback bias circuit, make work more stable.

2, amplifier and filter, amplifier is served as by F4 among the IC1 and F5.IC1 is TC4069, and the arrangement of its pin is referring to Fig. 5.R7 is a biased electrical, and the two poles of the earth directly are coupled.C6 and R5 form filter.

3, shaper, it is formed bistable circuit by the F3 among the IC1, F6, R8 and R6 and carries out integer.

4, demoder is by IC2(VD5028) to serve as, pin is arranged and is seen Fig. 7, and the coding side wiring is corresponding with VD4026, and as long as transport to IC2, the signal data of the 14th pin is correct, and the 17th pin just has high level output.

5, time delay circuit, by IC1(TC4069) F1, F2 and Fig. 1 and Fig. 2 in C7, C8, C9, R9, D1 form, D1 is a charging diode, C7, C8 are time constant electric capacity, R9 is a discharging resistance, the delay time of C7, C8 is that 30-60 is adjustable second, and its effect has: executive circuit stable operation when at first guaranteeing the compression signaling, next is robbed Che Shike and guarantees the out of danger and timely warning of driver.

6, vibration sensor, it is made up of piezoelectric ceramic piece and placed on it the helping device (steel ball) that shakes.Because vehicle is subjected to making the steel ball vibration behind the extraneous vibration, thereby piezoelectric ceramic piece is vibrated.And produce electric signal IC3(TC4069) (Fig. 1,2) have the function that signal amplifies, the time is judged with peripheral original paper combination.Wherein C16 is a coupling capacitance, and F1, F2 are that straight coupling amplifies among the IC3, and C15, D5, D4 form voltage multiplying rectifier.F3, the F4 composition first order was delayed time about 1 second in R14, C10 and the IC3, and F5, the F6 in R11, C12 and the IC3 forms the second stage and delayed time about 3 seconds.When being not intended to striking once during vehicle, vibration signal amplifies through F1, the F2 of IC3, D5, F4, C15 voltage multiplying rectifier charge to C10, make its monostable circuit upset 1 second, the F4 mouth becomes high level (about 1 second) among the IC3, charge to C12 by R11, because time constant is 3 seconds, so the F5 of IC3, F6 can not overturn, also promptly can not trigger warning, when having a mind to striking (time was greater than 3 seconds), the F4 high level of IC3 charges to C12 by R11, make F5, the F6 upset of IC3, the C11 both end voltage is by the high level vanishing.This signal removes to trigger language IC 4 the 3rd pin through D2, D3 AND circuit after judging again, and sound gives a warning.Be composed of the time determining program in the language IC4, according to pitch time, vibration number is sent the different sounds, can be referring to Fig. 4.

7, LISP program LISP, LISP program LISP circuit layout be 1 pin, power connection negative pole (); 2 pin high level trigger ends (female voice is said: " having a pleasant trip "); 3 pin low level trigger ends (trigger for the first time and say: " not motor-car ", trigger snap for the second time in ten seconds: " moving again the warning! ", trigger for the third time in ten seconds, lift up one's voice: " catch a thief, stolen car! ", do not trigger and stop crying out.Surpass after ten seconds and trigger again, say since first.Continuous trigger is not stopped, and says one every three seconds, and last sentence iterates; 4 pin low level trigger ends.(the each triggering lifts up one's voice: " catch a thief, stolen car ... " iterates.Do not trigger and stop words); 5 pin signal output parts; 6 pin power connection positive poles.(voltage 3-6V, oscillation resistance are enclosed in inside),

8, acoustics circuit, in order to strengthen the warning effect, sound equipment partly adopts TDA2822 double power amplifier integrated circuit to form the BTL circuit, makes alarm sound loud and clear, sees that IC5, C22 are the noise filter capacitor among Fig. 1 and Fig. 2, the input impedance matching of R21, R22 dividing potential drop and IC5.C23 is a coupling capacitance.R23 is an input resistance.C25, C24 are the BTL coupling capacitance, and C27 is anti-vibration electric capacity, and C26 is the power supply decoupling capacitance.Y is loudspeaker.Y with 8 Europe loudspeaker, influences decoding circuit in order not make acoustics circuit, executive circuit with 16 Europe loudspeaker during 6V during power line voltage 12V, adopt electronic regulation filtering, isolate before and after making it, see that BG2, C17 among Fig. 1,2, C18, R16, DW1 form, make its stable decoding.

9, executive circuit, the circuit of Fig. 1 and Fig. 2 is the same substantially, but its executive's interface circuit difference, Fig. 1 motor annunciator is with relay (J) open contact; Fig. 2 automobile annunciator is with (J) normally closed contact.

At present, the magnetic motor for motorcycle ignition type is mostly in the flame-out mode of short circuit.Automobile all adopts the flame-out mode of outage.Select different interface circuits for use, play antitheft effect.Figure 1B point connects the motorcycle ignition power supply, and A connects control lock.A point ground connection when cut-offfing, the BG4b utmost point is clamped to low level, and BG4, BG5 do not have bias current and only carry.The C of BG4 is high level very, and IC4 the 4th pin is a high level through R18, R19 dividing potential drop, does not report to the police.R15, R17, BG3, D7 form OR circuit, when owner not the time, the time-delay mouth is a low level, BG3 carries and ends, the state of BG4, BG5 is by A point direct control.When picking lock, broken string, R17 provides biasing conducting, (J) adhesive for BG4, BG5.B point ground connection, hot wire power supply and stop working.IC4 the 4th pin level step-down is reported to the police.After assert owner, the time-delay mouth is a high level, the BG3 conducting, and BG4, BG5 do not have bias current and only carry, and (J) discharge, and the car circuit is not normally reported to the police.Fig. 2 A point connects the automotive ignition power supply, B point contact fire coil.After assert owner, the BG3 conducting, A point current potential why no matter, BG4, B5 can conductings.When owner not the time, BG3 carries and ends, during the picking lock switch on, A point be a high potential, R17 provides the biasing conducting for B4, BG5, (J) adhesive, A, B disconnection, high-tension coil cuts off the power supply and stops working.IC4 the 4th pin is that low level is reported to the police.

D6, D8 among Fig. 1,2, D11 are the protection diode, and C21, C28 are anti-interference capacitor, and R24 is an anti-creep resistance, take above-mentioned means after, this device produces a desired effect.Have intelligent decision, language alarm, luckiness is separated the police: antitheft, anti-ly pushes away, anti-ly lifts, anti-dismounting, anti-ly kidnaps function, and easy for installation, applicability is strong.

The former device that this device adopts all is that market can be purchased except that vibration sensor, as long as go tissue production according to new design invention, can realize the design, and promptly fruit is adopted conveyor line production, and effect is better.

Claims (1)

1, a kind of intelligent anti-theft alarm, it is made up of compression code sender and alarm controller, it is characterized in that producing negative-going pulse by the compression control circuit triggers the encode circuit control end, encode circuit output is interrupted data signal modulation radio-frequency transmissions part, be interrupted transmitted data signal, alarm controller receives signal by receiver, the mouth of giving demoder, demoder behind amplifier, filter, shaper becomes high level by low level, remove to close closed language circuit and executive circuit by delay timer, remove warning; The vehicle normal operation; When compressing code sender away from alarm controller, receiver can not receive digital signal; Demoder does not have high level output, can not close closed language circuit and executive circuit, vibration sensor produces electric signal through amplifying when vehicle is shaken, the language circuit is triggered in voltage multiplying rectifier, time-delay back, give a warning and chimes of doom, when opening vehicle ignition switch, pad row circuit can be controlled by ignition lock and close the vehicle ignition circuit, triggers the language circuit alarm simultaneously.

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