CN2160579Y

CN2160579Y - Calling apparatus

Info

Publication number: CN2160579Y
Application number: CN93205556U
Authority: CN
Inventors: 李荣恭
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-05
Filing date: 1993-03-05
Publication date: 1994-04-06
Anticipated expiration: 2003-03-05

Abstract

The utility model discloses a long distance calling apparatus for theft prevention and alarming, which mainly comprises a transmitter, a receiver, an electrical source and a buzzer, wherein, the transmitter is composed of a time sequence oscillation circuit, an encoder, a primary radio frequency amplifying circuit, and a secondary radio frequency amplifying circuit; the receiver (2) is mainly composed of an ultra-audion circuit (9), a secondary triode amplifying circuit, a waveform shaping circuit, a decoder (12), a low frequency oscillation circuit, a high frequency oscillating circuit, a not gate and a triode. When a motorcycle is vibrated abnormally, the signal can be transmitted by the transmitter to the receiver carried by a motorcycle owner. As a result, the motorcycle owner can take theft prevention measures.

Description

Calling apparatus

The utility model belongs to a kind of Anti-theft calling device device.

Existing Car Burglar Alarm only on self-propelled vehicle a certain recesses one switch be installed cut off engine, self-propelled vehicle can't be started and reach antitheft purpose, but this anti-joyride device and method, the time loses antitheft effect once long being found easily.

The purpose of this utility model provides a kind of remote anti-theft alarm calling set.

The purpose of this utility model is achieved in that the calling set that includes projector 1, receptor 2, power supply 3 and buzzer phone 4, wherein

1) projector 1 is made up of sequential oscillating circuit 5, coder 6, elementary radio frequency amplifying circuit 7 and secondary radio frequency amplifying circuit 8, when contact 310 input high potentials, trigger sequential oscillating circuit 5 and produce impulse singla, encoded device 4 output password signals, after amplifying by menophania radio frequency amplifying circuit 7 and secondary radio frequency amplifying circuit 8, code signal is modulated into emission after the radiofrequency signal and goes out;

2) receptor 2 is mainly by ultra-audio circuit 9, diode ﹠ transistor amplifying circuit 10, waveform shaping circuit 11, demoder 12, low-frequency oscillatory network 13 and high-frequency oscillating circuits 14 and not gate and aerotron are formed, the radiofrequency signal that ultra-audio circuit 9 receives projector 1 modulation is demodulated to code signal, the amplifying circuit of being made up of diode ﹠ transistor 411 and 412 10 is done the signal amplification again, through not gate 413,414 and 415 and the waveform shaping circuit 11 formed of peripheral element carry out the third stage and amplify and wave shaping, input decoder 12 is decoded then, demoder 12 output control signals make aerotron 416 circuit triggers low-frequency oscillatory networks 13 and high-frequency oscillating circuits 14 send the double frequency type oscillator signal, promote two

aerotrons

420 and 421 actions through not gate 419, make buzzer phone 4 send the sound of double frequency type, and glittering through the indicator lamp of aerotron 422 triggering light-emitting diodes 423, reach theft-proof purpose.

Whether the utility model has been owing to adopted projector and receptor, thereby can detect self-propelled vehicle at a distance whether not clear vibration is arranged, have the robber to steal the attempt of car.

Followingly in conjunction with the accompanying drawings and embodiments the utility model is described in detail:

Fig. 1 is the transmitter circuit figure of calling set.

Fig. 2 is the acceptor circuit figure of calling set.

As Fig. 1, when contact 310 input high potentials, can trigger sequential oscillating circuit 5 and produce impulse singla, encoded device 4 output password signals, after elementary radio frequency amplifying circuit 7 and 8 amplifications of secondary radio frequency amplifying circuit, code signal is modulated into emission after the radiofrequency signal and goes out, in the receptor 2 of Fig. 2, the radiofrequency signal that ultra-audio circuit 9 receives projector 1 modulation is demodulated to code signal, do the signal amplification by the amplifying circuit 10 that diode ﹠ transistor 411 and 412 is formed, through not gate 413,414 and 415 and the waveform shaping circuit 11 formed of peripheral element carry out the third stage and amplify and wave shaping, going into demoder 12 then decodes, demoder 12 output control signals make aerotron 416 circuit triggers low-frequency oscillatory networks 13 and high-frequency oscillating circuits 14 send the double frequency type oscillator signal, promote two

aerotrons

420 and 421 actions through not gate 419, make buzzer phone 4 send the sound of double frequency type, and it is glittering to trigger the indicator lamp of light-emitting diodes 423 through aerotron 422, reaches theft-proof purpose.

Claims

1, a kind of calling set, it includes projector (1), receptor (2), power supply (3) and buzzer phone (4), it is characterized in that

1) projector (1) is made up of sequential oscillating circuit (5), coder (6), elementary radio frequency amplifying circuit (7) and secondary radio frequency amplifying circuit (8), when contact (310) input high potential, trigger sequential oscillating circuit (5) and produce impulse singla, encoded device (4) output password signal, after amplifying by elementary radio frequency amplifying circuit (7) and secondary radio frequency amplifying circuit (8), code signal is modulated into emission after the radiofrequency signal and goes out;

2) receptor (2) is mainly by ultra-audio circuit (9), diode ﹠ transistor amplifying circuit (10), waveform shaping circuit (11), demoder (12), low-frequency oscillatory network (13) and high-frequency oscillating circuits (14) and not gate and aerotron are formed, the radiofrequency signal that ultra-audio circuit (9) receives projector (1) modulation is demodulated to code signal, the amplifying circuit of being made up of diode ﹠ transistor (411) and (412) (10) is done the signal amplification again, through not gate (413), (414) and the waveform shaping circuit (11) formed of (415) and peripheral element carry out the 3rd utmost point and amplify and wave shaping, input decoder (12) is decoded then, demoder (12) output control signal makes aerotron (416) circuit triggers low-frequency oscillatory network (13) and high-frequency oscillating circuits (14) send the double frequency type oscillator signal, promote two triodes (420) and (421) action through not gate (419), make buzzer phone (4) send the sound of double frequency type, and glittering through the indicator lamp of aerotron (422) triggering light-emitting diode (423), reach theft-proof purpose.