CN2284534Y

CN2284534Y - Warning device for travelling bag

Info

Publication number: CN2284534Y
Application number: CN 97204566
Authority: CN
Inventors: 姜天山
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-02-02
Filing date: 1997-02-02
Publication date: 1998-06-24
Anticipated expiration: 2007-02-02

Abstract

The utility model discloses a warning device for a traveling bag, which can prevent the traveling bag from being stolen, or being forgotten and lost. The warning device for a traveling bag is composed of an emitter and a receiver which are two separated parts. The emitter is formed by connecting the three unit circuits of a power supply circuit, an oscillation circuit and an emitting circuit in series, the receiver is formed by connecting a receiving circuit, a frequency selecting and oscillation circuit, a switching circuit, an alarm circuit and a loudspeaker in series, and the power supply circuit supplies power supply. When the utility model works, the emitter can emit radio electric signals with fixed oscillation frequency, and the receiver is controlled by the electric signals, and has the alarm or the non-alarm working states. The product overcomes the defects that the existing products are inconvenient in use and have poor practicality, and has the double functions of theft protection and forgetting alarms.

Description

The traveling bag reminiscences

The utility model relates to a kind of radiotelegraph installation, especially belongs to a kind of reminiscences that has warning function in the traveling bag that is installed in.

In actual life, the article that some tourists carry for example combination lock etc. often because of stolen, forget and lose.In order to solve tourist's trouble and worry, conveniently travel outdoors, a kind of warning device is arranged in the market, its structure mainly is made of power supply, warning circuit and loudspeaker etc.During use, in the travel items such as combination lock with its tourist that packs into, only stay a socket to communicate with the external world; Plugging on this socket is the plug that rope is arranged, and inserts plug and just can cut off the warning device circuit, and rope is then controlled by the tourist, or be held in the hand or be fixed on a certain position of health, when external force made plug separate with socket, warning circuit just can get electric work, sends chimes of doom through loudspeaker.The warning device shortcoming of this structure is: needs to connect the carrier, uses inconvenience with rope, and poor practicability, thereby be difficult to popularize.

The purpose of this utility model is that a kind of improved traveling bag reminiscences will be provided.It neither needs to connect carrier and traveling bag with rope, and the carrier is when forgeing traveling bag, can also warning reminding, have characteristics practical, good anti-theft effect.

The utility model purpose is achieved through the following technical solutions: structural feature of the present utility model is, it is made of transmitter and two discrete parts of receiver, transmitter can when receiver does not receive this signal, just can send chimes of doom with the oscillation frequency transmitted radio signal.During use, transmitter places in the travel items such as traveling bag; Receiver is then carried by owner, and during work, transmitter is with certain oscillation frequency transmitted radio signal, and the receiver that owner carries can receive this radio signal in the coverage of radio signal, and at this moment receiver is not reported to the police; Stolen or forget when traveling bag, when causing receiver not receive this radio signal, receiver just can send alarm sound automatically, reminding owner, thereby has reached the utility model purpose.

The utility model compared with prior art, the utility model constitutes warning device by the technical scheme of transmitter and receiver, having overcome prior art needs connect with rope travel items and carrier's drawback, not only easy to use, good anti-theft effect, and when forgeing travel items, can also remind owner, therefore popularize easily, advantage is obvious.

The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.

Fig. 1 is the utility model embodiment operating circuit block diagram;

Fig. 2 is a kind of operating circuit schematic diagram of the utility model embodiment transmitter;

Fig. 3 is a kind of operating circuit schematic diagram of the utility model embodiment receiver.

Referring to Fig. 1.The utility model is made of transmitter and two discrete parts of receiver, and transmitter is formed by power circuit 1, oscillatory circuit 2 and radiating circuit 3 three parts serial connection; Receiver is formed by receiving circuit 4, select frequency oscillation circuit 5, commutation circuit 6, warning circuit 7 and loudspeaker 8 serial connections, and power circuit 9 is supplied with receiver power supply.

Referring to accompanying drawing 1,2.Fig. 2 is a transmitter operating circuit schematic diagram, and transmitter circuit forms (referring to Fig. 1) by power circuit 1,

oscillatory circuit

2 and 3 three element circuit serial connections of radiating circuit.Power circuit is by battery DC ₁, K switch ₁And power supply inditron D ₁Form.Oscillatory circuit 2 is by crystal TSS ₁, resistance R ₂With six anti-phase digital integrated circuit CD ₁Constitute crystal TSS ₁Play the frequency stabilization effect, select 3.57 megahertzes for use; R ₂It is oscillation resistance.Radiating circuit 3 is by inductance L ₁, three utmost point amplifier tube BG ₁, the solid capacitor C ₁, C ₂, C ₃Form, three electric capacity constitute capacitance three-point type emission, capacitor C ₃Link to each other C with the emitting antenna two ends ₃Select tunable capacitor for use.

Referring to accompanying drawing 1,3.Accompanying drawing 3 shows the operating circuit schematic diagram of the utility model receiver.Receiver forms power circuit 9 supply powers by receiving circuit 4, select frequency oscillation circuit 5, commutation circuit 6, warning circuit 7 and loudspeaker 8 serial connections.Receiving circuit 4 receives the amplifying triode BG that holds concurrently by high frequency ₂, the bikini capacitor C ₄, C ₅, C ₆, inductance L ₂Constitute; Select frequency oscillation circuit 5 is by crystal TSS ₂, triode BG ₃, six anti-phase digital integrated circuit CD ₂And resistor-capacitor unit constitutes.Crystal TSS ₂One end and triode BG ₃Base stage is joined, the other end and six anti-phase digital integrated circuit CD ₂The one oscillation resistance R that extremely goes up ₉One end joins, while and CD ₂Two extremely continuous, play the frequency-selecting effect, select 3.57 megahertzes for use, make it and TSS ₁Be complementary.BG ₃Play frequency-selecting and double on-off action; CD ₂With R ₁₀, C ₁₁Work the oscillating impulse effect that produces.Commutation circuit 6 is by switch triode BG ₄, BG ₅And relay J is formed.Warning circuit 7 is by alert sound integrated circuit CD ₃, power amplification promotes triode BG ₆Constitute.Y is a loudspeaker.Power circuit 9 comprises direct supply DC ₂, power switch K ₂, D ₂Be light emitting diode.

The principle of work of the utility model transmitter and receiver is:

Transmitter: adopting 9 volts of laminated cells is power supply, turns on the power switch K ₁, oscillatory circuit and radiating circuit are started working, oscillatory circuit is by BG ₁Emitter circuit provides the loop, produces resonance oscillations, and oscillation frequency is 3.57 megahertzes, then by BG ₁Collector antenna TX ₁Launch.

Receiver: adopt 6 volts of powered battery, open K switch ₂, make select frequency oscillation, commutation circuit start working BG ₂Through antenna TX ₂Receive 3.57 megahertz signals, through BG ₃, reverse digital circuit CD ₂After the vibration, the B point is stably exported 3 volts of left and right sides voltages, BG ₄Conducting, the C point loses voltage, BG ₅End, relay J discharges, and makes the warning circuit outage, and loudspeaker does not have audio frequency output, does not report to the police.In case BG ₄The base stage loss signal, i.e. during B point no-voltage output, the select frequency oscillation circuit keeps quiescent operation, BG ₄End BG ₅Conducting, the relay adhesive, warning circuit is connected, and loudspeaker sends alarm sound.

Claims

1, a kind of traveling bag reminiscences is characterized in that: the utility model is made of transmitter (1,2,3) and two discrete parts of receiver (4,5,6,7,8,9).Transmitter is formed by power circuit (1), oscillatory circuit (2) and (3) three element circuit serial connections of radiating circuit, receiver forms power circuit (9) supply power by receiving circuit (4), select frequency oscillation circuit (5), commutation circuit (6), warning circuit (7) and loudspeaker (8) serial connection.

2, a kind of traveling bag reminiscences according to claim 1 is characterized in that: the crystal TSS in the select frequency oscillation circuit (5) of receiver ₂One end and triode BG ₃Base stage is joined, the other end and six anti-phase digital integrated circuit CD ₂The one oscillatory circuit R that extremely goes up ₉Link to each other while and CD ₂Two extremely continuous.