CN202938905U - Vibration detection circuit of security alarm device - Google Patents
Vibration detection circuit of security alarm device Download PDFInfo
- Publication number
- CN202938905U CN202938905U CN 201220558417 CN201220558417U CN202938905U CN 202938905 U CN202938905 U CN 202938905U CN 201220558417 CN201220558417 CN 201220558417 CN 201220558417 U CN201220558417 U CN 201220558417U CN 202938905 U CN202938905 U CN 202938905U
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- flip flop
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Abstract
The utility model relates to the security technology field and provides a vibration detection circuit of a security alarm device. The vibration detection circuit of the security alarm device comprises a power source VCC, resistors R14-R22, capacitors C10-C13, a triode Q3, a triode Q4, a piezoelectric ceramic buzzing sheet Y1 and diodes D4-5, wherein one end of the piezoelectric ceramic buzzing sheet Y1 is connected with a base electrode of the triode Q3, the other end of the piezoelectric ceramic buzzing sheet Y1 is in grounding connection, the resistors R14 is connected with the power source VCC and the base electrode of the triode Q3 and provides power for the power source VCC and the base electrode of the triode Q3, a collector electrode of the triode Q3 is connected with the power source VCC, an emitter electrode of the triode Q3 is in grounding connection through the resistor R17, the emitter electrode of the triode Q3 is connected with a D trigger and provides a CLK clock for the D trigger, the power source VCC is in grounding connection through the filter capacitor C10, and a collector electrode of the triode Q4 is connected with the power source VCC through the resistor R22.
Description
Technical field
The utility model relates to technical field of security and protection, and a kind of vibration detection circuit of protection alarm device is provided.
Background technology
Along with the progress of science and technology and the raising of people's material and cultural life, the demand of people's safety is also more and more higher, thereby various security devices arise at the historic moment, security device need to carry out Real-time Collection to various environmental informations in security protection, judge whether environmental information exists extremely, and the collection of the vibration information in environmental information is one of important information of safety-protection system.
Summary of the invention
The purpose of this utility model is to provide a kind of vibration detection circuit of protection alarm device.
The utility model is by the following technical solutions to achieve these goals:
a kind of vibration detection circuit of protection alarm device, it is characterized in that: comprise power supply VCC, resistance R 14-R22, capacitor C 10-C13, triode Q3, triode Q4, piezoelectric ceramics buzzing sheet Y1, diode D4-D5, the base stage of described piezoelectric ceramics buzzing sheet Y1 one end connecting triode Q3, one end ground connection, described resistance R 14 connects the base stage of power supply VCC and triode Q3, for it provides base current, the collector of triode Q3 connects power supply VCC, the emitter of triode Q3 is by R16 ground connection, the emitter of described triode Q3 connects d type flip flop, for d type flip flop provides the CLK clock, described power supply VCC is by filter capacitor C10 ground connection, the collector of described triode Q4 meets power supply VCC by resistance R 22, the base stage of triode Q4 connects the Q pin of d type flip flop by resistance R 18 and R17, the grounded emitter of triode Q4, the collector of triode Q4 is as signal output part, described capacitor C 13 1 end group ground, the other end is by resistance R 21, R17 is connected with the Q pin of d type flip flop, described capacitor C 13 is connected with the RST pin of d type flip flop by diode D5.
Because the utility model has adopted above technical scheme, with low cost so the utility model is simple in structure, easily integrated, and reliability is high.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
a kind of vibration detection circuit of protection alarm device, it is characterized in that: comprise power supply VCC, resistance R 14-R22, capacitor C 10-C13, triode Q3, triode Q4, piezoelectric ceramics buzzing sheet Y1, diode D4-D5, the base stage of described piezoelectric ceramics buzzing sheet Y1 one end connecting triode Q3, one end ground connection, described resistance R 14 connects the base stage of power supply VCC and triode Q3, for it provides base current, the collector of triode Q3 connects power supply VCC, the emitter of triode Q3 is by R16 ground connection, the emitter of described triode Q3 connects d type flip flop, for d type flip flop provides the CLK clock, described power supply VCC is by filter capacitor C10 ground connection, the collector of described triode Q4 meets power supply VCC by resistance R 22, the base stage of triode Q4 connects the Q pin of d type flip flop by resistance R 18 and R17, the grounded emitter of triode Q4, the collector of triode Q4 is as signal output part, described capacitor C 13 1 end group ground, the other end is by resistance R 21, R17 is connected with the Q pin of d type flip flop, described capacitor C 13 is connected with the RST pin of d type flip flop by diode D5.
The utility model utilizes the work of piezoelectric effect principle, when it receives vibration, piezoelectric ceramics buzzing sheet Y1 will produce faint voltage signal, this signal is given d type flip flop as its CLK clock signal after passing through the transistor amplifier that Q3 is core, 1 pin Q end output high level, thereby make the Q4 conducting, the T0 output low level, the voltage of 1 pin Q end charges to capacitor C 12 through R17, R21 simultaneously, when the voltage on C13 rises to certain value, d type flip flop resets, and 1 pin Q end becomes low level, and warning stops.Warning circuit start time-delay is by capacitor C 11 and resistance R 20 decisions, and driving the time-delay of reporting to the police is to be determined by capacitor C 13 and resistance R 21.
Claims (1)
1. the vibration detection circuit of a protection alarm device, it is characterized in that: comprise power supply VCC, resistance R 14-R22, capacitor C 10-C13, triode Q3, triode Q4, piezoelectric ceramics buzzing sheet Y1, diode D4-D5, the base stage of described piezoelectric ceramics buzzing sheet Y1 one end connecting triode Q3, one end ground connection, described resistance R 14 connects the base stage of power supply VCC and triode Q3, for it provides base current, the collector of triode Q3 connects power supply VCC, the emitter of triode Q3 is by R16 ground connection, the emitter of described triode Q3 connects d type flip flop, for d type flip flop provides the CLK clock, described power supply VCC is by filter capacitor C10 ground connection, the collector of described triode Q4 meets power supply VCC by resistance R 22, the base stage of triode Q4 connects the Q pin of d type flip flop by resistance R 18 and R17, the grounded emitter of triode Q4, the collector of triode Q4 is as signal output part, described capacitor C 13 1 end group ground, the other end is by resistance R 21, R17 is connected with the Q pin of d type flip flop, described capacitor C 13 is connected with the RST pin of d type flip flop by diode D5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558417 CN202938905U (en) | 2012-10-29 | 2012-10-29 | Vibration detection circuit of security alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558417 CN202938905U (en) | 2012-10-29 | 2012-10-29 | Vibration detection circuit of security alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202938905U true CN202938905U (en) | 2013-05-15 |
Family
ID=48323139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220558417 Expired - Fee Related CN202938905U (en) | 2012-10-29 | 2012-10-29 | Vibration detection circuit of security alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202938905U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697627A (en) * | 2013-12-09 | 2015-06-10 | 深圳市海洋王照明工程有限公司 | Voice and vibration detection circuit and voice and vibration detection device |
| CN104950342A (en) * | 2015-06-29 | 2015-09-30 | 孙敏 | Mouse and fly bioinstrumentation circuit in health quarantine IoT (Internet of Things) |
| CN106404157A (en) * | 2016-11-02 | 2017-02-15 | 成都前锋电子仪器有限责任公司 | Low power consumption vibration detection circuit |
| WO2017152363A1 (en) * | 2016-03-08 | 2017-09-14 | 马翼 | Internet of things-based alarm device for use in vibration detection |
-
2012
- 2012-10-29 CN CN 201220558417 patent/CN202938905U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697627A (en) * | 2013-12-09 | 2015-06-10 | 深圳市海洋王照明工程有限公司 | Voice and vibration detection circuit and voice and vibration detection device |
| CN104950342A (en) * | 2015-06-29 | 2015-09-30 | 孙敏 | Mouse and fly bioinstrumentation circuit in health quarantine IoT (Internet of Things) |
| WO2017152363A1 (en) * | 2016-03-08 | 2017-09-14 | 马翼 | Internet of things-based alarm device for use in vibration detection |
| CN106404157A (en) * | 2016-11-02 | 2017-02-15 | 成都前锋电子仪器有限责任公司 | Low power consumption vibration detection circuit |
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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: 20130515 Termination date: 20131029 |