CN106408811A - Electricity larceny prevention alarming circuit - Google Patents
Electricity larceny prevention alarming circuit Download PDFInfo
- Publication number
- CN106408811A CN106408811A CN201610857926.1A CN201610857926A CN106408811A CN 106408811 A CN106408811 A CN 106408811A CN 201610857926 A CN201610857926 A CN 201610857926A CN 106408811 A CN106408811 A CN 106408811A
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- circuit
- diode
- npn type
- type triode
- electric capacity
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
Abstract
The invention belongs to the technical field of alarming circuits, and particularly relates to an electricity larceny prevention alarming circuit. The technical problem to be solved by the invention is to provide a power line high-voltage danger warning and alarming circuit which can be conveniently installed and is low in manufacturing cost. The electricity larceny prevention alarming circuit is characterized by comprising a contact sensor, a control chip, a relay KJ1 and a control circuit board, wherein a power supply circuit, a voltage stabilizing circuit and a control circuit are arranged on the control circuit board, an output end of the contact sensor is connected with an input end of the control chip, an output end of the control chip is connected with an input end of the power supply circuit through the relay KJ1, an output end of the power supply circuit is connected with an input end of the voltage stabilizing circuit, and an output end of the voltage stabilizing circuit is connected with an input end of the control circuit. The electricity larceny prevention alarming circuit is applicable to the field of electric power.
Description
Technical field
The invention belongs to the technical field of warning circuit is and in particular to thief-proof electric alarm circuit.
Background technology
At present, municipal administration, cell, telecommunications, electric power, rural power grids, factory, enterprise, office, heating power, fire-fighting, etc. public utility ground
Side is accomplished by installing ammeter it is necessary to ammeter box, and electricity box are usually a terminal laying along electric power facility to family, and each household all needs
Want electricity box, that is, need a set of ammeter box shell, therefore consumption is very big.But have a lot of people to make a desperate move, by various modes
Sneaked current, paid number with the electricity charge reducing individual, the phenomenon of wherein transformation electric energy meter is especially prominent, causes to power supply industry
Great economic loss, the also national normal supply order of very disruptive.Effectively electricity theft prevention, to energy saving, protects
The rights and interests of shield power supply department all have very important significance, and the anti-theft electricity technology of constantly improve electric energy meter is also power supply department and masses
Problem of concern.
Content of the invention
The present invention overcomes the shortcomings of that prior art exists, and technical problem to be solved is：There is provided a kind of easy to use, make
The relatively low thief-proof electric alarm circuit of valency.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is：Thief-proof electric alarm circuit, passes including contact
Sensor, control chip, relay KJ1 and control board, described control board is provided with power circuit, mu balanced circuit and control
Circuit processed, the output end of described feeler is connected with the input of control chip, and the output end of described control chip is passed through
Relay KJ1 is connected with the input of power circuit, and the output end of power circuit is connected with the input of mu balanced circuit, described steady
The output end of volt circuit is connected with the input of control circuit；
Described power circuit includes inductance L1 and bridge rectifier T1, and mu balanced circuit includes diode D1, diode D2, diode
D3, diode D4, electric capacity C7 and electric capacity C8, control circuit includes NPN type triode Q1, NPN type triode Q2 and buzzer M1.
One end of normally-closed contact KJ1.1 of described relay KJ1 is connected with power supply positive pole, and relay KJ1's is normally closed
It is connected with one end of inductance L1 after the other end series resistor R1 of contact KJ1.1, one end of the other end of inductance L1 and electric capacity C2,
The input positive terminal of bridge rectifier T1 is connected, and the other end of described electric capacity C2 is electric with the input negative terminal of bridge rectifier T1, power supply
Source negative pole is connected, and described electric capacity C1 is connected in parallel on the two ends of resistance R1；
The output plus terminal of described bridge rectifier T1 is connected with one end of electric capacity C7, and the other end of electric capacity C7 is negative with diode D1's
Pole, the positive pole of diode D2 are connected, the positive pole of the negative pole of diode D2 and diode D3, one end of electric capacity C8, the one of resistance R2
End, one end of resistance R3, the colelctor electrode of NPN type triode Q2 are connected, and the negative pole of diode D3 is connected with the positive pole of diode D4,
The other end of resistance R2 is connected with the base stage of NPN type triode Q1, and the colelctor electrode of NPN type triode Q1 is another with resistance R3's
End, the base stage of NPN type triode Q2 are connected, and the emitter stage of NPN type triode Q2 is connected with one end of buzzer M1, buzzer M1
The emitter stage of the other end and NPN type triode Q1, the other end of electric capacity C8, the negative pole of diode D4, the positive pole of diode D1
It is connected with the output negative terminal of bridge rectifier T1.
The present invention compared with prior art has the advantages that：
The thief-proof electric alarm circuit of the present invention, including feeler, control chip, relay KJ1 and control board, controls electricity
Road plate is provided with power circuit, mu balanced circuit and control circuit；Feeler senses outer signals in real time, when there being personnel close
When, feeler monitors signal, and sends a signal to control chip, and the normally closed of control chip control relay KJ1 is touched
Point KJ1.1 disconnects, and NPN type triode Q1 is changed into ending from conducting, and NPN type triode Q2 is changed into turning on from cut-off, buzzer M1
Send chimes of doom, the present invention can play warning function, point out to withdraw in time near personnel.
Brief description
The present invention will be further described in detail below in conjunction with the accompanying drawings；
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the circuit structure diagram of control board of the present invention；
In figure：1 is feeler, and 2 is control chip, and 3 is control board, and 4 is power circuit, and 5 is mu balanced circuit, and 6 are
Control circuit.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below will be in the embodiment of the present invention
Technical scheme be not clearly and completely described it is clear that described embodiment is a part of embodiment of the present invention, and not
It is whole embodiments；Based on the embodiment in the present invention, those of ordinary skill in the art are not before making creative work
Put the every other embodiment being obtained, broadly fall into the scope of protection of the invention.
As shown in Figure 1 and Figure 2, thief-proof electric alarm circuit, including feeler 1, control chip 2, relay KJ1 and control
Circuit board 3 processed, described control board 3 is provided with power circuit 4, mu balanced circuit 5 and control circuit 6, described feeler 1
Output end be connected with the input of control chip 2, the output end of described control chip 5 passes through relay KJ1 and power circuit 1
Input be connected, the output end of power circuit 4 is connected with the input of mu balanced circuit 5, the output end of described mu balanced circuit 5 and
The input of control circuit 6 is connected；
Described power circuit 4 includes inductance L1 and bridge rectifier T1, and mu balanced circuit 5 includes diode D1, diode D2, two poles
Pipe D3, diode D4, electric capacity C7 and electric capacity C8, control circuit 6 includes NPN type triode Q1, NPN type triode Q2 and buzzer
M1.
One end of normally-closed contact KJ1.1 of described relay KJ1 is connected with power supply positive pole, and relay KJ1's is normally closed
It is connected with one end of inductance L1 after the other end series resistor R1 of contact KJ1.1, one end of the other end of inductance L1 and electric capacity C2,
The input positive terminal of bridge rectifier T1 is connected, and the other end of described electric capacity C2 is electric with the input negative terminal of bridge rectifier T1, power supply
Source negative pole is connected, and described electric capacity C1 is connected in parallel on the two ends of resistance R1；
The output plus terminal of described bridge rectifier T1 is connected with one end of electric capacity C7, and the other end of electric capacity C7 is negative with diode D1's
Pole, the positive pole of diode D2 are connected, the positive pole of the negative pole of diode D2 and diode D3, one end of electric capacity C8, the one of resistance R2
End, one end of resistance R3, the colelctor electrode of NPN type triode Q2 are connected, and the negative pole of diode D3 is connected with the positive pole of diode D4,
The other end of resistance R2 is connected with the base stage of NPN type triode Q1, and the colelctor electrode of NPN type triode Q1 is another with resistance R3's
End, the base stage of NPN type triode Q2 are connected, and the emitter stage of NPN type triode Q2 is connected with one end of buzzer M1, buzzer M1
The emitter stage of the other end and NPN type triode Q1, the other end of electric capacity C8, the negative pole of diode D4, the positive pole of diode D1
It is connected with the output negative terminal of bridge rectifier T1.
Thief-proof electric alarm circuit of the present invention, this circuit is arranged on electric pole top, when normally using, power supply
Voltage is added in the base stage of NPN type triode Q1 by the normally-closed contact KJ1.1 through relay KJ1, so that NPN type triode Q1 is turned on,
Then the base potential of NPN type triode Q2 is pulled low, and NPN type triode Q2 is ended, and buzzer M1 does not work；
Thief-proof electric alarm circuit of the present invention, when normally using, the normally-closed contact KJ1.1 through relay KJ1 for the power supply
Voltage is added in the base stage of NPN type triode Q1, so that NPN type triode Q1 is turned on, the then base potential of NPN type triode Q2
It is pulled low, NPN type triode Q2 is ended, buzzer M1 does not work；
When there being human contact's ammeter box, feeler 1 monitors signal, and sends a signal to control chip 2, controls core
The normally-closed contact KJ1.1 of piece 2 control relay KJ1 disconnects, and power supply cuts off, and NPN type triode Q1 is changed into ending from conducting,
NPN type triode Q2 is changed into turning on from cut-off, and buzzer M1 sends chimes of doom.
The thief-proof electric alarm circuit of the present invention, power circuit 4, mu balanced circuit 5 and control circuit 6 are integrated in control board
On 3, structure is simple, and cost is relatively low, and can play warning function, points out to want the personnel of stealing to withdraw in time, it is to avoid cause
Unnecessary loss.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (2)
1. thief-proof electric alarm circuit it is characterised in that：Including feeler（1）, control chip（2）, relay KJ1 and control
Circuit board（3）, described control board（3）It is provided with power circuit（4）, mu balanced circuit（5）And control circuit（6）, described connect
Tactile sensor（1）Output end and control chip（2）Input be connected, described control chip（2）Output end pass through relay
Device KJ1 and power circuit（4）Input be connected, power circuit（4）Output end and mu balanced circuit（5）Input be connected,
Described mu balanced circuit（5）Output end and control circuit（6）Input be connected；
Described power circuit（4）Including inductance L1 and bridge rectifier T1, mu balanced circuit（5）Including diode D1, diode D2,
Diode D3, diode D4, electric capacity C7 and electric capacity C8, control circuit（6）Including NPN type triode Q1, NPN type triode Q2 and
Buzzer M1.
2. thief-proof electric alarm circuit according to claim 1 it is characterised in that：The normally-closed contact of described relay KJ1
One end of KJ1.1 is connected with power supply positive pole, after the other end series resistor R1 of the normally-closed contact KJ1.1 of relay KJ1 with
One end of inductance L1 is connected, and the other end of inductance L1 is connected with one end of electric capacity C2, the input positive terminal of bridge rectifier T1, described
The other end of electric capacity C2 is connected with the input negative terminal of bridge rectifier T1, power supply negative pole, and described electric capacity C1 is connected in parallel on resistance
The two ends of R1；
The output plus terminal of described bridge rectifier T1 is connected with one end of electric capacity C7, and the other end of electric capacity C7 is negative with diode D1's
Pole, the positive pole of diode D2 are connected, the positive pole of the negative pole of diode D2 and diode D3, one end of electric capacity C8, the one of resistance R2
End, one end of resistance R3, the colelctor electrode of NPN type triode Q2 are connected, and the negative pole of diode D3 is connected with the positive pole of diode D4,
The other end of resistance R2 is connected with the base stage of NPN type triode Q1, and the colelctor electrode of NPN type triode Q1 is another with resistance R3's
End, the base stage of NPN type triode Q2 are connected, and the emitter stage of NPN type triode Q2 is connected with one end of buzzer M1, buzzer M1
The emitter stage of the other end and NPN type triode Q1, the other end of electric capacity C8, the negative pole of diode D4, the positive pole of diode D1
It is connected with the output negative terminal of bridge rectifier T1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610857926.1A CN106408811B (en) | 2016-09-28 | 2016-09-28 | Thief-proof electric alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610857926.1A CN106408811B (en) | 2016-09-28 | 2016-09-28 | Thief-proof electric alarm circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106408811A true CN106408811A (en) | 2017-02-15 |
| CN106408811B CN106408811B (en) | 2018-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610857926.1A Active CN106408811B (en) | 2016-09-28 | 2016-09-28 | Thief-proof electric alarm circuit |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186967Y (en) * | 1994-04-20 | 1995-01-04 | 金寿银 | Device for preventing sneaking current |
| CN2399732Y (en) * | 1997-07-16 | 2000-10-04 | 谭尚毅 | High sensitive self-breaking memory single-phase watt-hour meter anti-fradulence device |
| CN200959157Y (en) * | 2006-06-12 | 2007-10-10 | 周殿凤 | Safety alarming circuit |
| US20080186172A1 (en) * | 2007-02-01 | 2008-08-07 | Paul Thompson | Intrusion detection system for electric fences |
| CN102436703A (en) * | 2010-09-29 | 2012-05-02 | 陈家斌 | Anti-theft intelligent warner of distribution transformer |
| CN205405797U (en) * | 2016-01-04 | 2016-07-27 | 武汉大学 | Electric infrared inductive switch alarm device is released to high pressure shaft tower heat |
| CN206075453U (en) * | 2016-09-28 | 2017-04-05 | 国网山西省电力公司运城供电公司 | A kind of thief-proof electric alarm circuit |
-
2016
- 2016-09-28 CN CN201610857926.1A patent/CN106408811B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186967Y (en) * | 1994-04-20 | 1995-01-04 | 金寿银 | Device for preventing sneaking current |
| CN2399732Y (en) * | 1997-07-16 | 2000-10-04 | 谭尚毅 | High sensitive self-breaking memory single-phase watt-hour meter anti-fradulence device |
| CN200959157Y (en) * | 2006-06-12 | 2007-10-10 | 周殿凤 | Safety alarming circuit |
| US20080186172A1 (en) * | 2007-02-01 | 2008-08-07 | Paul Thompson | Intrusion detection system for electric fences |
| CN102436703A (en) * | 2010-09-29 | 2012-05-02 | 陈家斌 | Anti-theft intelligent warner of distribution transformer |
| CN205405797U (en) * | 2016-01-04 | 2016-07-27 | 武汉大学 | Electric infrared inductive switch alarm device is released to high pressure shaft tower heat |
| CN206075453U (en) * | 2016-09-28 | 2017-04-05 | 国网山西省电力公司运城供电公司 | A kind of thief-proof electric alarm circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106408811B (en) | 2018-07-20 |
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