CN2425446Y - Burglar alarm for power installation - Google Patents
Burglar alarm for power installation Download PDFInfo
- Publication number
- CN2425446Y CN2425446Y CN 00237519 CN00237519U CN2425446Y CN 2425446 Y CN2425446 Y CN 2425446Y CN 00237519 CN00237519 CN 00237519 CN 00237519 U CN00237519 U CN 00237519U CN 2425446 Y CN2425446 Y CN 2425446Y
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- CN
- China
- Prior art keywords
- triode
- unit
- resistance
- diode
- signal generating
- 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.)
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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a burglar alarm for a power installation. A sampling unit, a controlling unit, a signal generating unit, an output magnifying unit and a loudspeaker are connected with each other, which forms the burglar alarm for a power installation. The sampling unit is a DC power supply circuit which is used for reducing and stabilizing voltage. The sampling unit provides operating voltage and action instructions for the controlling unit. The controlling unit is a time-delaying rectangular square wave circuit which is generated when the operating voltage gains electricity and loses electricity. The output of the controlling unit controls the electricity gains and the electricity losses of the signal generating unit IC through elements of the controlling switch V3. The alarm signals of the signal generating unit IC are amplified through a power amplifier V4 to control the work of the loudspeaker R.
Description
The utility model relates to a kind of anti-theft alarm for power installation.
Along with social progress, vast rural area comprises that remote districts have generally used electricity, has greatly promoted the development of urban and rural economies.But the stolen and destroyed phenomenon of electric power facility is also serious day by day, and this has hindered the development of local economy again to a great extent.For this reason, people have developed various anti-theft alarm for power installation, and these alarms have all descended the very big time on alarm signal sends, have by wireless transmission, have by the wire radio transmission, function is all more complete, common shortcoming is the cost height, is not easy to promote the use of.
The purpose of this utility model is to provide a kind of anti-theft alarm for power installation, and this warning should it have better simply circuit and lower cost, so that promote the use of.
The technical solution of the utility model is to have adopted a kind of anti-theft alarm for power installation, this alarm is formed by connecting by sampling unit, control unit, signal generating unit, amplification output unit and loud speaker, sampling unit is the lowering and stabilizing blood pressure DC power supply circuit, sampling unit provides operating voltage and action command to control unit, control unit is that an operating voltage gets the circuit that electric and dead electricity all produce a time-delay rectangle square wave, and the output of control unit is by control switch element V
3Control signal generating unit IC electric and dead electricity, the alarm signal of signal generating unit IC is through amplifirer V
4Amplification control loudspeaker R work.
Described sampling unit is by diode D
1, resistance R
1And voltage-stabiliser tube D
4Be connected on the alternating current 220V power supply and constitute, in diode and resistance R
1Serial connection point and ground wire between and be connected to a clutter and absorb capacitor C
1, at voltage-stabiliser tube D
4On be parallel with electric capacity of voltage regulation C
2
Described control unit can be following constituted mode: resistance R
2, resistance R
3Be connected in parallel on the positive pole and ground wire of sampling unit output resistance after the series connection
4And capacitor C
4Also be connected in parallel on above-mentioned positive pole and the ground wire diode D behind the middle connection
5Be connected on the intermediate contact of above-mentioned two series circuits, with resistance R
3Constitute capacitor C together
4Discharge circuit, capacitor C
4Positive pole by diode D
6With NPN type triode V
1Base stage link to each other triode V
1Grounded emitter, its collector electrode passes through resistance R
5With diode D
3Link to each other triode V with sampling unit is anodal
1Collector electrode also pass through resistance R
7With NPN type triode V
2Base stage links to each other, triode V
2Grounded emitter, collector electrode and output control switch element NPN type triode V
3Base stage link to each other diode D
3Negative pole pass through capacitor C
3And resistance R
6Parallel circuits ground connection.
Signal generating unit IC is one " CE9561 " type integrated chip, its anodal and be connected to triode V
3Emitter and on the ground, the output of integrated chip and power discharging transistor V
4Base stage link to each other triode V
4Grounded emitter, the end of loud speaker R is connected triode V
3Emitter on, the other end and triode V
4Collector electrode link to each other.
From the circuit as can be seen, the sampled signal of sampling unit of the present utility model can directly be taken from the terminal of circuit, also be that electric power facility is at one's side gerentocratic, when improper outage appears in circuit, can in time report to the police, administrative staff are investigated electric power facility, prevent the stolen and destruction of electric power facility,, reduced manufacturing cost because circuit of the present utility model has saved wireless transmission and received the complicated circuit of class, make remote poverty-stricken area user be easy to accept, large tracts of land is promoted the use of easily.In addition, also can sound the alarm when circuit of the present utility model is powered electric power facility again, be convenient to administrative staff and take the circumstances into consideration operation.
Below in conjunction with accompanying drawing the utility model is made further explanation:
Fig. 1 is circuit theory diagrams of the present utility model.
Among Fig. 1, anti-theft alarm for power installation of the present utility model, be formed by connecting by sampling unit, control unit, signal generating unit, amplification output unit and loud speaker, sampling unit is the lowering and stabilizing blood pressure DC power supply circuit, sampling unit provides operating voltage and action command to control unit, control unit is that an operating voltage gets the circuit that electric and dead electricity all produce a time-delay rectangle square wave, and the output of control unit is by control switch element V
3Control signal generating unit IC electric and dead electricity, the alarm signal of signal generating unit IC is through amplifirer V
4Amplification control loudspeaker R work.
Sampling unit is by diode D
1, resistance R
1And voltage-stabiliser tube D
4Be connected on the alternating current 220V power supply and constitute, in diode and resistance R
1Serial connection point and ground wire between and be connected to a clutter and absorb capacitor C
1, at voltage-stabiliser tube D
4On be parallel with electric capacity of voltage regulation C
2In resistance R
1And voltage-stabiliser tube D
4Between be in series with a light-emitting diode, to show the electric power thus supplied of electric power facility.
Control unit is following constituted mode: resistance R
2, resistance R
3Be connected in parallel on the positive pole and ground wire of sampling unit output resistance after the series connection
4And capacitor C
4Also be connected in parallel on above-mentioned positive pole and the ground wire diode D behind the middle connection
5Be connected on the intermediate contact of above-mentioned two series circuits, with resistance R
3Constitute capacitor C together
4Discharge circuit, capacitor C
4Positive pole by diode D
6With NPN type triode V
1Base stage link to each other triode V
1Grounded emitter, its collector electrode passes through resistance R
5With diode D
3Link to each other triode V with sampling unit is anodal
1Collector electrode also pass through resistance R
7With NPN type triode V
2Base stage links to each other, triode V
2Grounded emitter, collector electrode and output control switch element NPN type triode V
3Base stage link to each other diode D
3Negative pole pass through capacitor C
3And resistance R
6Parallel circuits ground connection.
Signal generating unit IC is one " CE9561 " type integrated chip, its anodal and be connected to triode V
3Emitter and on the ground, the output of integrated chip and power discharging transistor V
4Base stage link to each other triode V
4Grounded emitter, the end of loud speaker R is connected triode V
3Emitter on, the other end and triode V
4Collector electrode link to each other.
When a little dead electricity of electric power facility circuit, capacitor C
3Pass through resistance R
6In the time of discharge, also to the control unit power supply, at this moment, triode V
1End triode V
2And V
3Conducting, loud speaker R is put triode V at signal generating unit and electric work
4Effect report to the police down, loud speaker is worked as capacitor C by storage battery E power supply
3When discharge finished, loud speaker R stopped to report to the police.When the electric power facility circuit is sent a telegram here again, because capacitor C
4Charge and discharge effect, triode V
1The time-delay conducting, triode V
1Be in cut-off state, triode V
2, V
3Conducting, loud speaker R reports to the police, and works as capacitor C
4When charging finishes, triode V
1Conducting, triode V
2, V
3End the loud speaker R end of reporting to the police.
Claims (4)
1, a kind of anti-theft alarm for power installation, it is characterized in that this alarm is formed by connecting by sampling unit, control unit, signal generating unit, amplification output unit and loud speaker, sampling unit is the lowering and stabilizing blood pressure DC power supply circuit, sampling unit provides operating voltage and action command to control unit, control unit is that an operating voltage gets the circuit that electric and dead electricity all produce a time-delay rectangle square wave, and the output of control unit is by control switch element V
3Control signal generating unit IC electric and dead electricity, the alarm signal of signal generating unit IC is through amplifirer V
4Amplification control loudspeaker R work.
2, burglar alarm according to claim 1 is characterized in that described sampling unit is by diode D
1, resistance R
1And voltage-stabiliser tube D
4Be connected on the alternating current 220V power supply and constitute, in diode and resistance R
1Serial connection point and ground wire between and be connected to a clutter and absorb capacitor C
1, at voltage-stabiliser tube D
4On be parallel with electric capacity of voltage regulation C
2
3, burglar alarm according to claim 1 and 2 is characterized in that described control unit can be following constituted mode: resistance R
2, resistance R
3Be connected in parallel on the positive pole and ground wire of sampling unit output resistance after the series connection
4And capacitor C
4Also be connected in parallel on above-mentioned positive pole and the ground wire diode D behind the middle connection
5Be connected on the intermediate contact of above-mentioned two series circuits, with resistance R
3Constitute capacitor C together
4Discharge circuit, capacitor C
4Positive pole by diode D
6With NPN type triode V
1Base stage link to each other triode V
1Grounded emitter, its collector electrode passes through resistance R
5With diode D
3Link to each other triode V with sampling unit is anodal
1Collector electrode also pass through resistance R
7With NPN type triode V
2Base stage links to each other, triode V
2Grounded emitter, collector electrode and output control switch element NPN type triode V
3Base stage link to each other diode D
3Negative pole pass through capacitor C
3And resistance R
6Parallel circuits ground connection.
4, burglar alarm according to claim 3 is characterized in that signal generating unit IC is one " CE9561 " type integrated chip, its anodal and be connected to triode V
3Emitter and on the ground, the output of integrated chip and power discharging transistor V
4Base stage link to each other triode V
4Grounded emitter, the end of loud speaker R is connected triode V
3Emitter on, the other end and triode V
4Collector electrode link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00237519 CN2425446Y (en) | 2000-06-08 | 2000-06-08 | Burglar alarm for power installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00237519 CN2425446Y (en) | 2000-06-08 | 2000-06-08 | Burglar alarm for power installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2425446Y true CN2425446Y (en) | 2001-03-28 |
Family
ID=33598765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00237519 Expired - Fee Related CN2425446Y (en) | 2000-06-08 | 2000-06-08 | Burglar alarm for power installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2425446Y (en) |
-
2000
- 2000-06-08 CN CN 00237519 patent/CN2425446Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |