CN2919400Y

CN2919400Y - Electronic lovers' purses

Info

Publication number: CN2919400Y
Application number: CN 200520078797
Authority: CN
Inventors: 刘功成
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-20
Filing date: 2005-05-20
Publication date: 2007-07-04
Anticipated expiration: 2015-05-20

Abstract

The utility model relates to an annunciator device, in particular to an electronic mandarin duck purse applicable to alarm for carrying with the article being lost. The utility model comprises a radio electropult, a radio receiving device, and is characterized in that the radio electropult is used for timely transmitting radio signal with code; the radio receiving device includes a radio receiving circuit, a control circuit, an alarm circuit, and a control circuit used for timing open radio receiving circuit work. When open the radio receiving circuit works, testing code transmit by the radio electropult. When not receiving the code information or the code information is not matching the code, the annunciator sends the alarm single. This mutual style alarm device is not affecting other persons when giving an alarm. The radio electropult and radio receiving device is through one to one code, not producing misinformation, on the other hand, the utility model can work with a plurality of circuits at the same time, and does not affect each other.

Description

Electronics mandarin duck wallet

Affiliated technical field

The utility model relates to a kind of warning device, particularly is adapted to the electronics mandarin duck wallet that the portable type article lost is reported to the police.

Background technology

Article such as personal effects such as handbag, mobile phone are easy to lose owing to do not note.This has brought inconvenience to life.Though a kind of alarm that uses in travelling was once arranged, it is by a transmitter and a receiver, transmitter constantly sends signal, receiver constantly receives the signal of transmitter, when surpassing communication distance owing to variable in distance, receiver does not receive signal can send alerting signal immediately, reaches the purpose of keeping an eye on article.Because this alarm aims at the travelling design, not high on power consumption requires, as long as can work continuously 1 to 2 day, just can reach the properties of product requirement, but powered battery is adopted in long-term work, the consumer just can't accept.Its two, the said goods does not reach one by one corresponding, when a plurality of people use simultaneously, as long as an operate as normal even handbag exceeds distance, can not produce warning yet.Its three, audible alarm can influence its people, especially when wrong report, the noise pollution environment.

Summary of the invention

The purpose of this utility model provides a kind of electronics mandarin duck wallet, and it also can use for a long time using small-capacity cells particularly during button cell.

The electronics mandarin duck wallet that second purpose of the present utility model provides, its supporting a pair of reception, the use between the dispensing device can not influence third-party use.

The 3rd purpose of the present utility model is the influence that reduces when the electronics mandarin duck wallet that provides is reported to the police environment.

The purpose of this utility model is to realize like this, design a kind of electronics mandarin duck wallet, it comprises a wireless launcher, one radio receiver, it is characterized in that: wireless launcher is made up of a high-frequency tube Q5, a switching tube Q4 and single-chip microcomputer, and high-frequency tube constitutes 315Mhz high frequency power radiating circuit with the surperficial device of sound, and the emitter of high-frequency tube is electrically connected with the collector of switching tube Q4, the emitter of switching tube be electrically connected, base stage with control end be electrically connected; Radio receiver comprises antenna circuit 1, low noise pre-amplification circuit 2, mixing inspection frequency circuit 3, amplifies comparator circuit 4 and timing control circuit 5, antenna circuit 1 is made up of capacitor C 1 and inductance L 1 and antenna, capacitor C 1 and inductance L 1 in parallel the electrical connection, one end ground connection, the other end is electrically connected with antenna, and the contact place enters low noise pre-amplification circuit 2 input ends after by capacitor C 2; Low noise pre-amplification circuit 2 is made of triode Q1, biasing resistor R1 and collector load resistor R2 and R3; The base stage of biasing resistor R1 one termination triode Q1, the tie point of another termination collector load resistor R2 and R3, the collector of another termination triode of R2 Q1, another termination power of R3; Mixing inspection frequency circuit 3 is made up of triode Q2 capacitor C 7, C6, C5, C10, inductance L 2, L0; Connect capacitor C 10 between the collector of triode Q2 and the emitter, emitter connects the output of low noise pre-amplification circuit 2 by inductance L 2, collector is connected with inductance L 0 one ends with the capacitor C 7 that is electrically connected in parallel, the capacitor C 7 that is electrically connected in parallel and inductance L 0 other end are electrically connected with reference power source by capacitor C 6, and capacitor C 5 is arranged between C6 and L2; Amplify comparator circuit 4 and is made up of two operational amplifier LM358, wherein IC2 forms in-phase amplifier, exports with mixing inspection frequency circuit behind the stopping direct current filtering circuit that in-phase input end constitutes by R7, R10, C8, C9 to be electrically connected; The ratio that connects between end of oppisite phase and the output terminal is amplified resistance R 14, R15; Ratio is amplified the comparator input terminal that output constitutes by another road IC2 that is input to LM358 behind the partiting dc capacitor C12; The negativing ending grounding of mixing inspection frequency circuit 3, antenna circuit 1, low noise pre-amplification circuit 2, the negative terminal of two operational amplifier LM358 is electrically connected with the I/O mouth of timing control circuit 5; Timing control circuit 5 is electrically connected with alarm by triode Q3.

Described timed sending and time of reception were selected in 1 to 10 second.

Described certain distance is selected at 0.1-10m.

Because wireless launcher of the present utility model and radio receiver adopt timed sending and reception, regularly dutycycle can reach more than 500, its electric current is about 4ma when radiating circuit is worked, electric current has only several UA when not working, so average working current has only about 10UA, and the button cell of 100ma also can be worked more than 1 year.And receiving circuit adopts timing working equally.Receiving circuit is reported to the police and is adopted voice or vibration, can not influence its people's life when reporting to the police like this.By encoding one to one, can not report by mistake so on the one hand, but multichannel is worked simultaneously on the other hand, can not influence each other between wireless launcher and the radio receiver.

Description of drawings

The utility model is described in further detail below in conjunction with the embodiment accompanying drawing:

Fig. 1 is embodiment wireless launcher circuit theory diagrams;

Fig. 2 is the radio receiver circuit theory diagrams;

Among the figure, 1, antenna circuit; 2, the low noise pre-amplification circuit 2; 3, mixing inspection frequency circuit; 4, amplify comparator circuit; 5, timing control circuit; 6, alarm; 7, timing controller.

Embodiment

Embodiment as shown in Figure 1, wireless launcher is made up of a high-frequency tube Q5, a switching tube Q4 and single-chip microcomputer, high-frequency tube constitutes 315Mhz high frequency power radiating circuit with the surperficial device of sound, the emitter of high-frequency tube is electrically connected with the collector of switching tube Q4, the emitter of switching tube be electrically connected, base stage with control end be electrically connected.

The radio receiver circuit theory as shown in Figure 2, radio receiver comprises antenna circuit 1, low noise pre-amplification circuit 2, mixing inspection frequency circuit 3, amplifies comparator circuit 4 and timing control circuit 5, antenna circuit 1 is made up of capacitor C 1 and inductance L 1 and antenna, capacitor C 1 and inductance L 1 in parallel the electrical connection, one end ground connection, the other end is electrically connected with antenna, and the contact place enters low noise pre-amplification circuit 2 input ends after by capacitor C 2.Low noise pre-amplification circuit 2 is made of triode Q1, biasing resistor R1 and collector load resistor R2 and R3; The base stage of biasing resistor R1 one termination triode Q1, the tie point of another termination collector load resistor R2 and R3, the collector of another termination triode of R2 Q1, another termination power of R3.

Mixing inspection frequency circuit 3 is made up of triode Q2 capacitor C 7, C6, C5, C10, inductance L 2, L0; Connect capacitor C 10 between the collector of triode Q2 and the emitter, emitter connects the output of low noise pre-amplification circuit 2 by inductance L 2, collector is connected with inductance L 0 one ends with the capacitor C 7 that is electrically connected in parallel, the capacitor C 7 that is electrically connected in parallel and inductance L 0 other end are electrically connected with reference power source by capacitor C 6, and capacitor C 5 is arranged between C6 and L2.

Described reference power source electricity is provided by the dividing potential drop of two resistance R 4, R5.

Amplify comparator circuit 4 and is made up of two operational amplifier LM358, wherein IC2 forms in-phase amplifier, exports with mixing inspection frequency circuit behind the stopping direct current filtering circuit that in-phase input end constitutes by R7, R10, C8, C9 to be electrically connected; The ratio that connects between end of oppisite phase and the output terminal is amplified resistance R 14, R15.Ratio is amplified the comparator input terminal that output constitutes by another road IC2 that is input to LM358 behind the partiting dc capacitor C12.The comparer that is made of amplifier IC1 is that a universal circuit is not done to state at this more.Straight one carry be, the output terminal of LM358 negative terminal and comparer is electrically connected with two I/O mouths of timing control circuit 5, an I/O mouth is used to control the work of LM358, another is used to detect the outupt coded signal that frequency circuit 3 is examined in mixing.Timing controller 7 can be a single-chip microcomputer, and the alarm 6 of its control is an eccentric motor, and Micro Controller Unit (MCU) driving triode Q3 drives eccentric motor work.When single-chip microcomputer detects the coded signal that sends less than wireless launcher, and after repeatedly confirming, drive eccentric motor work.

Alarm 6 can be a voice sound, and as " article of running you well are seen in attention ", " band is your article well " voice sound has many groups, and output can be selected.

Claims

1, electronics mandarin duck wallet, it comprises a wireless launcher, one radio receiver, it is characterized in that: wireless launcher is made up of a high-frequency tube Q5, a switching tube Q4 and single-chip microcomputer, high-frequency tube constitutes 315Mhz high frequency power radiating circuit with the surperficial device of sound, the emitter of high-frequency tube is electrically connected with the collector of switching tube Q4, the emitter of switching tube be electrically connected, base stage with control end be electrically connected; Radio receiver comprises antenna circuit (1), low noise pre-amplification circuit (2) mixing inspection frequency circuit (3), amplifies comparator circuit (4) and timing control circuit (5), antenna circuit (1) is made up of capacitor C 1 and inductance L 1 and antenna, capacitor C 1 and inductance L 1 in parallel the electrical connection, one end ground connection, the other end is electrically connected with antenna, and the contact place enters low noise pre-amplification circuit (2) input end after by capacitor C 2; Low noise pre-amplification circuit (2) is made of triode Q1, biasing resistor R1 and collector load resistor R2 and R3; The base stage of biasing resistor R1 one termination triode Q1, the tie point of another termination collector load resistor R2 and R3, the collector of another termination triode of R2 Q1, another termination power of R3; Mixing inspection frequency circuit (3) is made up of triode Q2 capacitor C 7, C6, C5, C10, inductance L 2, L0; Connect capacitor C 10 between the collector of triode Q2 and the emitter, emitter connects the output of low noise pre-amplification circuit (2) by inductance L 2, collector is connected with inductance L 0 one ends with the capacitor C 7 that is electrically connected in parallel, the capacitor C 7 that is electrically connected in parallel and inductance L 0 other end are electrically connected with reference power source by capacitor C 6, and capacitor C 5 is arranged between C6 and L2; Amplify comparator circuit (4) and is made up of two operational amplifier LM358, wherein IC2 forms in-phase amplifier, exports with mixing inspection frequency circuit behind the stopping direct current filtering circuit that in-phase input end constitutes by R7, R10, C8, C9 to be electrically connected; The ratio that connects between end of oppisite phase and the output terminal is amplified resistance R 14, R15; Ratio is amplified the comparator input terminal that output constitutes by another road IC2 that is input to LM358 behind the partiting dc capacitor C12; The negativing ending grounding of mixing inspection frequency circuit (3), antenna circuit (1), low noise pre-amplification circuit (2), the negative terminal of two operational amplifier LM358 is electrically connected with the I/O mouth of timing control circuit (5); Timing control circuit (5) is electrically connected with alarm by triode Q3.

2, electronics mandarin duck wallet according to claim 1 is characterized in that: described timed sending and time of reception were 1 to 10 seconds.

3, electronics mandarin duck wallet according to claim 1, it is characterized in that: described certain distance is at 0.1-10m.