CN2269615Y - Anti-lost anti-theft device on body - Google Patents

Abstract

The utility model relates to an anti-lost and anti-theft portable device, which is designed for preventing portable valuable things such as cases, bags, mobiles, etc. or children from losing or stealing and is composed of a transmitter and a receiver. The transmitter is provided with a casing, a power supply switch, an electronic circuit of the transmitter and a circuit board; the receiver is provided with a casing, a switch, a receiving split wire, a buzzer or/and a vibrator, an electronic circuit of the receiver and a circuit board. The utility model is characterized in that the electronic circuit of the transmitter is compose of an intermittent electronic switching circuit, a storage or encode circuit IC 2 and a radio frequency emission circuit IC3, wherein, the intermittent electronic switching circuit is arranged on a loop of a working power supply. The electronic circuit of the receiver is composed of a radio frequency receiving amplification circuit, a storage or decoding circuit IC 5 and an alarm drive circuit IC7, wherein, an RC delay circuit which is corresponding to the intermittent electronic switching circuit of the transmitter is arranged in the front of the alarm drive circuit IC7.

Description

The anti-with oneself antitheft device that loses

For preventing the important objects carried, for example case and bag, mobile phone etc. or child lose (wandering away), the stolen and anti-mistake antitheft device of design to the utility model about a kind of.

In the actual life, usually have on a business trip or tourism when waiting outside, the important objects loss phenomenon of carrying because of a variety of causes occurs repeatedly, for this reason, Granted publication number proposes a solution for the CN.2156544Y name is called " losing-proof reminder ", be characterized in that this " losing-proof reminder " be made up of signal transmitter and receiver two parts, has shell, Multi-position switch, burst at the seams, hummer, electronic circuit board, the transmitter electronic circuit is by the encoding and decoding integrated package, Multi-position switch, inductance, transistor, resistance, electric capacity constitutes, the receiver electronic circuit is by frequency selection network, high-frequency signal amplifies, the superregeneration demodulation, shaping pulse and decoding and audio frequency trigger circuit constitute, its principle utilizes transmitter and receiver when certain distance is above, can not transmit coded signal and makes warning system send alerting signal.But the technique scheme electronic circuit exists formation not satisfactory, and power consumption is big, and the product bodily form does not very conform with deficiencies such as practicality.

The purpose of the utility model is will overcome the deficiency that prior art exists and provide that a kind of formations is reasonable, practical, the anti-with oneself reliably mistake antitheft device of circuit.

Should anti-ly with oneself lose antitheft device still is made of transmitter and receiver two parts, transmitter has shell, power switch, transmitter electronic circuit and circuit board, receiver has shell, switch, reception is burst at the seams, hummer or/with Vib., receiver electronic circuit and circuit board, be characterized in that the transmitter electronic circuit is by the batch (-type) electronic switching circuit, storage/coding circuit IC2, radio-frequency transmissions IC circuit 3 is formed, wherein, the batch (-type) electronic switching circuit places on the working power loop, the receiver electronic circuit receives amplifying circuit by radio frequency, storage/decoding circuit IC5, warning driving circuit IC7 forms, wherein, it is corresponding with batch (-type) electronic switching circuit in the transmitter to be provided with the RC delay circuit before the warning driving circuit IC7, also be provided with phase inverter F1 between warning driving circuit IC7 and storage/decoding circuit IC5, the RC delay circuit places between the phase inverter F1 and forms with it and postpones negative circuit.

Its emitter design of the utility model of said structure characteristics is for reading in storage/coded signal modulated carriers generator, by antenna towards periphery the space width of cloth penetrate, contain much information, the encoding amount height can be above 400 ten thousand groups, also reduced cost, other is provided with vibration batch (-type) electronic switching circuit and has reduced power consumption effectively, has increased substantially the service time of button cell, also adopts integrated circuit block to make the volume of transmitter be arranged to very little in addition.The supporting use of receiver and transmitter, when receiver was received the signal of transmitter, the warning driving circuit carried and ended (for example be divided into 2 meters of second gears, 5 meters) in the distance of setting, no signal output, in case surmount scope of design, the warning driving circuit moves at once, sounds or vibration alarming.In the receiver electronic circuit, be provided with phase inverter, will improve the circuit working reliability.

Further illustrate the utility model below in conjunction with description of drawings, provide embodiment simultaneously.

Fig. 1 is the utility model embodiment transmitter outside drawing.

Fig. 2 implements side receiver and transmitter combinations state reference map for the utility model.

Fig. 3 is the utility model embodiment transmitter circuit functional-block diagram.

Fig. 4 is the utility model embodiment transmitter electronic circuit figure.

Fig. 5 is the utility model embodiment acceptor circuit functional-block diagram.

Fig. 6 implements side receiver electronic circuitry for the utility model.

Fig. 7 is the pin annexation reference diagram of two integrated packages of IC2.

Fig. 8 is the pin annexation reference diagram of IC5 or two integrated packages of IC6.

Wherein, 1: launcher shell, 2: power switch, 3: receiver shell, 4: display screen

As shown in the figure, the transmitter electronic circuit is made up of (power supply stabilization circuit with) batch (-type) electronic switching circuit, storage/coding circuit, radio-frequency transmissions circuit, the batch (-type) electronic switching circuit of present embodiment is made of operational amplifier IC1 and triode VT1, wherein, operational amplifier IC1 imports the oscillation frequency that is provided with its parameter decision-making circuit of charge-discharge circuit that R5, R4, C1 form before the end, triode VT1 emitter and collector place on the power work loop, and the base stage of triode VT1 is connected with operational amplifier IC1 output terminal.After the power switch closure, the oscillator starting of oscillation of forming by other peripheral matched elements such as IC1, R4, R5, C1, output terminal at IC1, export a ultralow frequency pulse voltage, trigger VT1 conducting constantly and end by D3, R6, dutycycle generally is set as about 0.75 for good, and batch (-type) electronic switching circuit supply that constitutes thus and control next stage circuit working reach purpose of saving.Certainly, the utility model also comprises the batch (-type) electronic switching circuit of other circuit composition form.Storage/coding circuit IC2 present embodiment is selected the soft encapsulation combination of Y60595 or D2764 and QCH417 for use, radio-frequency transmissions IC circuit 3 is selected CF03 or CF02 integrated package for use, after IC2 obtains electricity that the batch (-type) electronic switching circuit sends here, promptly export one group of digital signal of setting, remove to modulate modulating emission circuit IC3 through the C2 coupling, synthetic radiofrequency signal is at last by antenna spatial emission towards periphery, capacitor C 3 fine-tuning transmission frequencies, make and be operated in suitable frequency range, for example about 250MHZ, be provided with crystal oscillator XTL, when IC3 selects the CF03 integrated package, XTL is connected with IC3 the 6th pin, the setting of XTL crystal oscillator is for stablizing the carrier frequency of radiating circuit, avoid the frequency drift that causes owing to reasons such as the fluctuation of supply voltage or temperature, emitting antenna is pulled out length by change and is controlled emission received field strength and receiving range, and for example the selective reception distance is 2 meters or 5 meters second gears.Power unit is conventional mu balanced circuit in the transmitter circuit.

The receiver electronic circuit receives amplifying circuit by radio frequency, storage/decoding circuit, the warning driving circuit is formed, also additional Multi-Function Display of present embodiment and driven unit, certainly entire circuit also is provided with power supply, radio-frequency (RF) receiving circuit is made up of with triode VT2 and support circuit thereof common special-purpose radio-frequency receiving circuit IC4, its signal is input to the input end of storage/decoding circuit IC5, IC5 also adopts Y60595 or D2764 and QCH417 to combine, IC5 exports a pulse voltage or output voltage signal not according to the coded signal corresponding relation, the output terminal present embodiment of IC5 is connected with phase inverter F1, the F1 output terminal is connected with warning driving circuit IC7 input end again, the R11 that be provided with this moment, the C7 delay circuit places the input end of phase inverter F1.When pulse voltage of storage/decoding circuit IC5 output, send into the shaping circuit of compositions such as D4, F1 and the delay circuit that R11, C7 constitute, wherein the effect of phase inverter F1 is the reliability that improves signal controlling, the characteristic of utilizing F1 before threshold value, can not overturn, even input voltage has the certain limit fluctuation, also can not influence the stability of output, the effect of RC delay circuit is the false triggering that causes back level warning circuit when preventing the signal drop-out of moment or start, simultaneously for cooperating the intermittent transmission signal of transmitter.Pulse voltage signal is after F1 is anti-phase, control voltage is that the warning driving circuit IC4 that low level connects with F1 ends when electronegative potential is imported, warning circuit is not worked, in case transmitter leaves the receiver certain distance, the radiofrequency signal field intensity sharply weakens, the high control level of phase inverter F1 input end descends thereupon, when dropping to the threshold value of F1, circuit overturns, the F1 output HIGH voltage, trigger the warning drive circuit works, sound or vibrate alerting signal.In the present embodiment, between receiving amplifying circuit signal output part and warning driving circuit IC7 input end, radio frequency is parallel with two covers or storage/decoding circuit IC5 (or IC6) and by F1 (or F2) more than two covers, R11, C7 (or R12, C8) the delay negative circuit of Zu Chenging, two and two above transmitters of working simultaneously in order to supporting identification, as long as its codec data is set as more than two groups or two groups, for example be provided with clamp switch K2 between F1 and the F2 input end at the phase inverter of parallel connection in addition, the switching of K switch 2 can be selected list, simultaneously whether two-shipper or many machines duty.In the present embodiment, the IC4 of receiver can select CJ03 for use, IC7 can select the IR2C4N1 integrated package for use, IC6 can select the integrated package the same with IC5 for use, certainly the IC5 or the IC6 of IC2 in the transmitter and receiver are slightly different at the pin mode that is connected with two kinds of integrated packages, and the mode of connection of this routine can be with reference to Fig. 7, Fig. 8.Launcher shell 1 in the utility model is designed to very small size in addition, 3 on receiver shell is provided with draw-in groove, launcher shell 1 is actively set in the draw-in groove, make seasoning at ordinary times convenient, also be provided with apparent driving circuit IC8 of screen and LCDs 4 thereof such as ordinary electronic clock in the receiver electronic circuit, the IC8 circuit directly is connected with power supply.

Claims (8)

1, a kind of anti-with oneself mistake antitheft device device is made up of transmitter and receiver two parts, transmitter has shell, power switch, emission is burst at the seams, transmitter electronic circuit and circuit board thereof, receiver has shell, switch, reception is burst at the seams, hummer or/with Vib., receiver electronic circuit and circuit board, it is characterized in that the transmitter electronic circuit is by the batch (-type) electronic switching circuit, storage/coding circuit IC2, radio-frequency transmissions IC circuit 3 is formed, wherein the batch (-type) electronic switching circuit places on the working power loop, the receiver electronic circuit receives amplifying circuit by radio frequency, storage/decoding circuit IC5, warning driving circuit IC7 forms, wherein reporting to the police, it is corresponding with batch (-type) electronic switching circuit in the transmitter to be provided with the RC delay circuit before the driving circuit IC7, be provided with phase inverter F1 between warning driving circuit IC7 and storage/decoding circuit IC5, the RC delay circuit is formed the delay negative circuit with it before placing phase inverter F1.

2, according to the described anti-with oneself antitheft device that loses of claim 1, its characteristics are that intermittently the formula on-off circuit is made of operational amplifier IC1 and triode VT1 and support circuit thereof, wherein, operational amplifier IC1 imports and is provided with the charge-discharge circuit decision interrupted oscillation frequency that R5, R4, C1 form before the end, triode VT1 emission places on the power work loop with collector, and the base stage of triode VT1 is connected with operational amplifier IC1 output terminal.

3, according to claim 1 or the 2 described anti-with oneself antitheft devices that lose, it is characterized in that the storage/coding in transmitter and the acceptor circuit, decoding circuit IC2, IC5 adopts Y60595 or D2764 and QCH417 to combine, the IC2 output terminal is coupled to radio-frequency transmissions IC circuit 3 by capacitor C 2, be provided with crystal oscillator XTL, when IC3 selects the CF03 integrated package, XTL is connected with IC3 the 6th pin, in the receiver electronic circuit, radio frequency receives amplifying circuit and is made up of with triode VT2 and support circuit thereof common special-purpose radio-frequency receiving circuit IC4, its signal is input to storage/decoding circuit IC5, IC5 exports a pulse voltage or output voltage signal not according to the coded signal corresponding relation, the output terminal of IC5 is connected with phase inverter F1, and be provided with R11 at the input end of phase inverter F1, the C7 delay circuit, phase inverter F1 output terminal is connected with warning driving circuit IC7 input end.

4, according to claim 1 or the 2 described anti-with oneself antitheft devices that lose, it is characterized in that in the receiver electronic circuit, radio frequency receives two covers and above storage/decoding circuit IC5 (or IC6) delay of two covers negative circuit F1 (or F2), R11, the C7 (or R12, C8) of being provided with in parallel between amplifying circuit signal output part and the warning driving circuit IC7 input end, wherein, be provided with clamp switch K between Bing Lian phase inverter F1 (or F2) input end.

5, according to the described anti-with oneself antitheft device that loses of claim 3, it is characterized in that in the acceptor circuit, radio frequency receives two covers and above storage/decoding circuit IC5 (or IC6) delay of two covers negative circuit F1 (or F2), R11, the C7 (or R12, C8) of being provided with in parallel between amplifying circuit signal output part and the warning driving circuit IC7 input end, wherein, be provided with clamp switch K between Bing Lian phase inverter F1 (or F2) input end.

6, according to claim 1 or the 2 or 5 described anti-with oneself antitheft devices that lose, it is characterized in that receiver shell (3) is provided with draw-in groove, launcher shell (1) is actively set in this draw-in groove, the receiver electronic circuit also is provided with apparent driving circuit IC8 of screen and LCDs (4) thereof such as ordinary electronic clock, and the IC8 circuit directly is connected with power supply.

7, according to the described anti-with oneself antitheft device that loses of claim 3, it is characterized in that receiver shell (3) is provided with draw-in groove, launcher shell (1) is actively set in this draw-in groove, the receiver electronic circuit also is provided with apparent driving circuit IC8 of screen and LCDs (4) thereof such as ordinary electronic clock, and the IC8 circuit directly is connected with power supply.

8, connect the anti-with oneself antitheft device that loses that shines claim 4 art, it is characterized in that receiver shell (3) is provided with draw-in groove, launcher shell (1) is actively set in this draw-in groove, the receiver electronic circuit also is provided with apparent driving circuit IC8 of screen and LCDs (4) thereof such as ordinary electronic clock, and the IC8 circuit directly is connected with power supply.

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