CN103680000A - Antitheft device - Google Patents
Antitheft device Download PDFInfo
- Publication number
- CN103680000A CN103680000A CN201310603686.9A CN201310603686A CN103680000A CN 103680000 A CN103680000 A CN 103680000A CN 201310603686 A CN201310603686 A CN 201310603686A CN 103680000 A CN103680000 A CN 103680000A
- Authority
- CN
- China
- Prior art keywords
- triode
- chip
- position switch
- loudspeaker
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The invention relates to the field of security technologies and provides an antitheft device comprising a housing (1). The housing (1) is provided with a light hole (3), an operation indicator light mounting hole (2), a speaker mounting hole (5) and a sucker (6). An alarm circuit is disposed inside the housing (1) and comprises a 4.5V power source, a position switch, a resistor R1, a photosensitive diode VD, a triode VT1, a triode VT2, an IC chip KD9561, a speaker, and a resistor R2. Two ends of the position switch K are a first end and a second end respectively. The first end is connected to an anode of the power source. A base of the triode VT1 is connected to the second end of the positioning switch K through the resistor R1. A base of the triode VT2 is connected to a cathode of the power source through the photosensitive diode VD. A collector of the triode VT1 is connected to the second end of the position switch K, and an emitter of the triode VT1 is connected to a pin 2 of the IC chip KD9561.
Description
Technical field
The invention belongs to technical field of security and protection, a kind of burglary-resisting installation is provided.
Background technology
Along with the raising of scientific and technical progress and people's material and cultural life, the develop rapidly of electronic apparatus, the people's living standard has had large increase.Various high-grade household appliances and valuables are had by many families.Yet some lawless persons are also more and more.This point is exactly to have seen that the antitheft consciousness of most people is strong not enough, causes steal phenomenon of common occurrence.Therefore, more and more resident family extremely worries property safety problem.Alarm is at this moment just for people have solved many problems. but the alarm major part on market is all for some fiscal institutions of major company.Price is high, and general people are difficult to accept.If design again and produce a kind of inexpensive, reliable burglar alarm of performance sensitive, will be in more effectively effect of performance aspect antitheft and assurance property safety.
Summary of the invention
The object of the present invention is to provide a kind of burglary-resisting installation.
For solid above-mentioned purpose the present invention by the following technical solutions:
A kind of burglary-resisting installation, it is characterized in that: comprise shell (1), on shell (1), be provided with light hole (3), relay indicating light mounting hole (2), loudspeaker installing port (5) and sucker (6), described housing is provided with warning circuit in (1), warning circuit comprises 4.5V power supply, position position switch K, resistance R 1, photodiode VD, triode VT1, triode VT2, IC chip KD9561, loudspeaker, resistance R 2, the two ends of position position switch K are divided into first end and the second end, and first end is connected to the positive pole of power supply;
The base stage of triode VT1 is connected to the second end of position, position position switch K by resistance R 1, the base stage of triode VT1 is connected to the negative pole of power supply by photodiode VD, the collector of triode VT1 is connected to the second end of position switch K, the emitter of triode VT1 is connected to 2 pins of IC chip KD9561
IC chip KD9561 4 pins be connected by resistance R 2 with 5 pins, 1 is connected the negative pole of power supply with 8 pins, the out pin of IC chip KD9561 connects the base stage of triode VT2, the collector of triode VT2 connects one end of loudspeaker YD, the second end of the other end link position K switch of loudspeaker YD, the emitter of triode VT2 connects power cathode.
During work, the present invention is adsorbed on to drawer inside by sucker, while opening drawer by day, position switch K is switched on, but VD is subject to illumination because of photodiode, its resistance diminishes, and transistor VT1 is in cut-off state, warning circuit is not worked, and loudspeaker YD does not have sound.When opening drawer night, photodiode VD does not irradiate compared with high light line, it is large that resistance becomes, shocking pipe VT1 obtains suitable bias current and conducting, ic chip obtains operating voltage, and warning circuit works, the sound signal of its output simulation police car electric whistle, and after transistor VT2 amplifies, promote loudspeaker YD and send loud police whistle sound.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present invention;
Fig. 2 is internal circuit diagram of the present invention.
Embodiment
A kind of burglary-resisting installation, it comprises shell (1), on shell (1), be provided with light hole (3), relay indicating light mounting hole (2), loudspeaker installing port (5) and sucker (6), described housing is provided with warning circuit in (1), warning circuit comprises 4.5V power supply, position position switch K, resistance R 1, photodiode VD, triode VT1, triode VT2, IC chip KD9561, loudspeaker, resistance R 2, the two ends of position position switch K are divided into first end and the second end, and first end is connected to the positive pole of power supply;
The base stage of triode VT1 is connected to the second end of position, position position switch K by resistance R 1, the base stage of triode VT1 is connected to the negative pole of power supply by photodiode VD, the collector of triode VT1 is connected to the second end of position switch K, the emitter of triode VT1 is connected to 2 pins of IC chip KD9561
IC chip KD9561 4 pins be connected by resistance R 2 with 5 pins, 1 is connected the negative pole of power supply with 8 pins, the out pin of IC chip KD9561 connects the base stage of triode VT2, the collector of triode VT2 connects one end of loudspeaker YD, the second end of the other end link position K switch of loudspeaker YD, the emitter of triode VT2 connects power cathode.
During work, the present invention is adsorbed on to drawer inside by sucker, while opening drawer by day, position switch K is switched on, but VD is subject to illumination because of photodiode, its resistance diminishes, and transistor VT1 is in cut-off state, warning circuit is not worked, and loudspeaker YD does not have sound.When opening drawer night, photodiode VD does not irradiate compared with high light line, it is large that resistance becomes, shocking pipe VT1 obtains suitable bias current and conducting, ic chip obtains operating voltage, and warning circuit works, the sound signal of its output simulation police car electric whistle, and after transistor VT2 amplifies, promote loudspeaker YD and send loud police whistle sound.
Claims (1)
1. a burglary-resisting installation, it is characterized in that: comprise shell (1), on shell (1), be provided with light hole (3), relay indicating light mounting hole (2), loudspeaker installing port (5) and sucker (6), described housing is provided with warning circuit in (1), warning circuit comprises 4.5V power supply, position switch K, resistance R 1, photodiode VD, triode VT1, triode VT2, IC chip KD9561, loudspeaker, resistance R 2, the two ends of position switch K are divided into first end and the second end, and first end is connected to the positive pole of power supply;
The base stage of triode VT1 is connected to the second end of position position switch K by resistance R 1, the base stage of triode VT1 is connected to the negative pole of power supply by photodiode VD, the collector of triode VT1 is connected to the second end of position switch K, the emitter of triode VT1 is connected to 2 pins of IC chip KD9561
IC chip KD9561 4 pins be connected by resistance R 2 with 5 pins, 1 is connected the negative pole of power supply with 8 pins, the out pin of IC chip KD9561 connects the base stage of triode VT2, the collector of triode VT2 connects one end of loudspeaker YD, the second end of the other end link position K switch of loudspeaker YD, the emitter of triode VT2 connects power cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310603686.9A CN103680000A (en) | 2013-11-26 | 2013-11-26 | Antitheft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310603686.9A CN103680000A (en) | 2013-11-26 | 2013-11-26 | Antitheft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103680000A true CN103680000A (en) | 2014-03-26 |
Family
ID=50317416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310603686.9A Pending CN103680000A (en) | 2013-11-26 | 2013-11-26 | Antitheft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103680000A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107818648A (en) * | 2018-01-08 | 2018-03-20 | 刘瑞 | A kind of intelligent domestic burglary-resisting installation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050073423A1 (en) * | 2003-09-22 | 2005-04-07 | Kim Walter Taehwan | Anti-theft and security system for computers |
| CN102930681A (en) * | 2012-10-25 | 2013-02-13 | 成都江法科技有限公司 | Infrared safety protection alarm device |
| CN202838571U (en) * | 2012-10-25 | 2013-03-27 | 成都江法科技有限公司 | Infrared emission circuit of infrared safety protection alarming device |
| CN202838575U (en) * | 2012-10-25 | 2013-03-27 | 成都江法科技有限公司 | Receiving alarming circuit of infrared safety protection alarming device |
-
2013
- 2013-11-26 CN CN201310603686.9A patent/CN103680000A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050073423A1 (en) * | 2003-09-22 | 2005-04-07 | Kim Walter Taehwan | Anti-theft and security system for computers |
| CN102930681A (en) * | 2012-10-25 | 2013-02-13 | 成都江法科技有限公司 | Infrared safety protection alarm device |
| CN202838571U (en) * | 2012-10-25 | 2013-03-27 | 成都江法科技有限公司 | Infrared emission circuit of infrared safety protection alarming device |
| CN202838575U (en) * | 2012-10-25 | 2013-03-27 | 成都江法科技有限公司 | Receiving alarming circuit of infrared safety protection alarming device |
Non-Patent Citations (1)
| Title |
|---|
| 晓月恒星: "防盗报警电路的设计", 《百度文库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107818648A (en) * | 2018-01-08 | 2018-03-20 | 刘瑞 | A kind of intelligent domestic burglary-resisting installation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204926377U (en) | Theftproof camera | |
| CN203519761U (en) | Anti-error-connection detecting circuit for zero line and live line of AC power | |
| CN204315012U (en) | A kind of anti-theft warning circuit | |
| CN201436562U (en) | Water level control and alarm circuit | |
| CN102737461A (en) | Adsorption type multifunctional infrared electronic fence | |
| CN207489210U (en) | A kind of photoelectric smoke detecting alarm | |
| CN103680000A (en) | Antitheft device | |
| CN101122617A (en) | Electrostatic caution module | |
| CN204836705U (en) | Touch doorbell lamp circuit | |
| CN204926376U (en) | Simulation camera with theftproof function | |
| CN202976366U (en) | Adsorption type multifunctional infrared electronic fence | |
| CN103839356A (en) | Anti-theft device | |
| CN103616606A (en) | JP cabinet electric leakage alarm apparatus | |
| CN103559766A (en) | Fire alarm | |
| CN203570030U (en) | Metal-sensor-based unlocking alarming type electronic handcuffs | |
| CN104637250A (en) | Smoke and dust alarm | |
| CN204515960U (en) | A kind of infrared safety protection alarm circuit | |
| CN203111354U (en) | Vibration type motorcycle antitheft alarm | |
| CN203689635U (en) | Novel computer burglar alarm circuit | |
| CN208337136U (en) | A kind of LED power protector | |
| CN106097634A (en) | A kind of multifunctional fire-fighting alarm | |
| CN102129757A (en) | Household infrared photosensitive gas alarming device | |
| CN207302269U (en) | A kind of infrared warning device | |
| CN201993417U (en) | High-sensitivity induction electricity measurer with high gear and low gear | |
| CN203902580U (en) | Radar monitoring and alarming extension module for crossing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |