CN202443540U - Multifunctional antitheft control circuit - Google Patents
Multifunctional antitheft control circuit Download PDFInfo
- Publication number
- CN202443540U CN202443540U CN2012200724955U CN201220072495U CN202443540U CN 202443540 U CN202443540 U CN 202443540U CN 2012200724955 U CN2012200724955 U CN 2012200724955U CN 201220072495 U CN201220072495 U CN 201220072495U CN 202443540 U CN202443540 U CN 202443540U
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- touch
- control circuit
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Abstract
The utility model relates to a multifunctional antitheft control circuit. An output end of a touch plate is connected with a shaping amplifier to form a touch circuit, the shaping rectifier consists of NOT gates F1 and F2, an output end of the NOT gate F2 is connected with a light-operated sensor consisting of a phototransistor VT, output signals of the touch circuit and the light-operated sensor are transmitted to an audio oscillator consisting of NOT gates F5 and F6 after passing through a gating circuit consisting of NOT gates F3 and F4 and a diode D1, output signals of the audio oscillator are transmitted to a loudspeaker YD, and a capacitor C3 of a parallel switch AN is connected to an output end of the NOT gate F3 and an output end of the phototransistor VT. A touch light-operated double-function alarm consists of a photosensitive circuit, a touch circuit, a CMOS (complementary metal oxide semiconductor) circuit and the like, the multifunctional antitheft control circuit has the advantages of simple and compact structure, easiness in manufacture and the like, and touch and light-operated antitheft double monitoring protection can be carried out for electric doors and windows, indoor articles and the like in various places.
Description
Technical field
The utility model relates to a kind of anti-theft circuit, particularly be a kind of multifunctional burglary-resistant control circuit.
Background technology
The anti-theft feature of traditional anti-theft warning circuit is single, involves great expense, and poor performance, therefore, develop a kind of inexpensive, multi-functional warning system, it is needed to be still a lot of occasions.
The utility model content
The purpose of the utility model is to provide a kind of employing touch circuit to combine with photosensitive circuit, can realize the multifunctional burglary-resistant control circuit of double monitoring.
The utility model solves the technical scheme that its technical matters adopted: the multifunctional burglary-resistant control circuit; Constitute shaping amplifier by the output terminal connection that touches sheet P by not gate F1, F2 and form the touch circuit; And connect the light control sensor that constitutes by phototriode VT by the output terminal of not gate F2; The output signal that touches circuit and light control sensor behind the gating circuit that diode D1 constitutes, transfers to the audio frequency oscillator that is made up of not gate F5, F6 through not gate F3, F4; The output signal of this audio frequency oscillator sends to loudspeaker YD, and the output terminal of said not gate F3 and phototriode VT is connected with the capacitor C 3 of paralleling switch AN.
Further, the not gate F4 output terminal of said gating circuit is connected to the not gate F5 of audio frequency oscillator through diode D2.
Further, the output terminal resistance in series R4 of said capacitor C 3 constitutes delay circuit.
Further, said loudspeaker YD adopts piezoelectric ceramic piece.
Through adopting above-mentioned technical scheme; The beneficial effect of the utility model is: this device adopts photosensitive circuit, touch circuit and cmos circuit etc. to constitute and touches light-operated difunctional alarm; Have circuit simple, compact, make characteristics such as easy, can realize touching and light-operated and antitheft double monitoring protection to the power window of multiple occasion and indoor article etc.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
As shown in Figure 1; The multifunctional burglary-resistant control circuit of the utility model; Constitute shaping amplifier by the output terminal connection that touches sheet P by not gate F1, F2 and form the touch circuit, and connect the light control sensor that is made up of phototriode VT by the output terminal of not gate F2, the output signal that touches circuit and light control sensor is through not gate F3, F4; Behind the gating circuit that diode D1 constitutes; Transfer to the audio frequency oscillator that is made up of not gate F5, F6, the output signal of this audio frequency oscillator sends to piezoelectric ceramic piece loudspeaker YD, and the not gate F4 output terminal of said gating circuit is connected to the not gate F5 of audio frequency oscillator through diode D2; The output terminal of said not gate F3 and phototriode VT is connected with the capacitor C 3 of paralleling switch AN, and the output terminal resistance in series R4 of said capacitor C 3 constitutes delay circuit.
When not taking place to steal feelings, touch the non-inductive signal of sheet P, then not gate F2 exports high level, and diode D1 ends, and not gate F4 output low level makes the audio frequency oscillator failure of oscillation.At this moment, because of the also unglazed photograph of phototriode VT, its not conducting of c-e utmost point, not gate F3 exports high level, and in like manner, audio frequency oscillator is not worked, and piezoelectric ceramic piece loudspeaker YD does not send chimes of doom.In case when thief attempt occurring and opening,, touch sheet P and just sense human body signal when hand touches when touching sheet P; This signal reduces capacitor C 3 negative terminal current potentials after constituting shaping amplifier amplification shaping through not gate F2, F2, and power supply is just to capacitor C 3 chargings; The high level of not gate F4 output simultaneously; Diode D2 ends, the audio frequency oscillator work that not gate F5, F6 constitute, and the signal that produces about 1kHz promotes piezoelectric ceramic piece loudspeaker YD and sends sound and light alarm.If this protection was lost efficacy, when the thief opened safety cabinet or valuable case and bag, phototriode VT just experienced light; Make its c-e utmost point conducting, not gate F4 input just is high level, and output becomes low level; Not gate F3 exports high level; Diode D2 ends, and audio frequency oscillator is also worked, and piezoelectric ceramic piece loudspeaker YD sends chimes of doom.
An above-described preferred embodiment that is merely the utility model can not limit the scope that the utility model is implemented, and every equalization of being done according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.
Claims (4)
1. multifunctional burglary-resistant control circuit; It is characterized in that: constitute shaping amplifier by the output terminal connection that touches sheet P by not gate F1, F2 and form the touch circuit; And connect the light control sensor that constitutes by phototriode VT by the output terminal of not gate F2; The output signal that touches circuit and light control sensor behind the gating circuit that diode D1 constitutes, transfers to the audio frequency oscillator that is made up of not gate F5, F6 through not gate F3, F4; The output signal of this audio frequency oscillator sends to loudspeaker YD, and the output terminal of said not gate F3 and phototriode VT is connected with the capacitor C 3 of paralleling switch AN.
2. multifunctional burglary-resistant control circuit according to claim 1 is characterized in that: the not gate F4 output terminal of said gating circuit is connected to the not gate F5 of audio frequency oscillator through diode D2.
3. multifunctional burglary-resistant control circuit according to claim 1 is characterized in that: the output terminal resistance in series R4 of said capacitor C 3 constitutes delay circuit.
4. multifunctional burglary-resistant control circuit according to claim 1 is characterized in that: said loudspeaker YD adopts piezoelectric ceramic piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200724955U CN202443540U (en) | 2012-03-01 | 2012-03-01 | Multifunctional antitheft control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200724955U CN202443540U (en) | 2012-03-01 | 2012-03-01 | Multifunctional antitheft control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202443540U true CN202443540U (en) | 2012-09-19 |
Family
ID=46824978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200724955U Expired - Fee Related CN202443540U (en) | 2012-03-01 | 2012-03-01 | Multifunctional antitheft control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202443540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240459A (en) * | 2014-09-29 | 2014-12-24 | 灵山县实验小学 | Photosensitive touch alarm |
-
2012
- 2012-03-01 CN CN2012200724955U patent/CN202443540U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240459A (en) * | 2014-09-29 | 2014-12-24 | 灵山县实验小学 | Photosensitive touch alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20130301 |