CN102394493A - Electrical signal collection monitoring device - Google Patents
Electrical signal collection monitoring device Download PDFInfo
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- CN102394493A CN102394493A CN2011102746709A CN201110274670A CN102394493A CN 102394493 A CN102394493 A CN 102394493A CN 2011102746709 A CN2011102746709 A CN 2011102746709A CN 201110274670 A CN201110274670 A CN 201110274670A CN 102394493 A CN102394493 A CN 102394493A
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Abstract
The invention relates to an electrical signal collection monitoring device, which comprises an over-current and short-circuit signal collecting circuit, a broken-zero-phase voltage collecting circuit, a fire alarming system interlocking control isolation circuit and a single chip control circuit, wherein signals which are collected by the over-current and short-circuit signal collecting circuit and the broken-zero-phase voltage collecting circuit are transmitted to a comparison circuit, signals outputted by the comparison circuit and the fire alarming system interlocking control isolation circuit are controlled by the single chip control circuit to be outputted to a display circuit, an alarming sound driving circuit, a power-failure driving circuit and a carrier signal lock-phase circuit, and an output signal of the carrier signal lock-phase circuit is transmitted to a carrier signal decoding circuit through a frequency selection amplifier circuit. The electric wire is used for transmitting the alarming data, so secondary wire distribution is not required, great convenience is brought to the construction, multiple electric malfunction signals are integrated into a whole so as to be simple to control and to effectively instruct professional personnel to clear the fault, and the power consumption safety can be realized.
Description
Technical field
The present invention relates to a kind of monitoring device, particularly be that a kind of electric signal is gathered monitoring device.
Background technology
Electric supply line mainly causes because of faults such as overload, short circuit, electric leakage, disconnected zero, thunderbolts, and omnibearing protection need design a plurality of protection components and could satisfy above-mentioned defencive function if desired.But will cause the element coupling difficult because of system element is many, data can not centralized control etc. problem.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of electric signal to gather monitoring device.
The technical solution adopted for the present invention to solve the technical problems is: electric signal is gathered monitoring device; Comprise overcurrent and short-circuit signal Acquisition Circuit, disconnected zero phase voltage Acquisition Circuit, fire alarm system interlock control buffer circuit, single chip machine controlling circuit; The signal of said electric current and short-circuit signal Acquisition Circuit, disconnected zero phase voltage Acquisition Circuit collection sends to comparison circuit; The output signal of comparison circuit, fire alarm system interlock control buffer circuit exports display circuit, alert sound-driving circuit, outage drive circuit, carrier signal phase lock circuitry to through single chip machine controlling circuit control, and the output signal of said carrier signal phase lock circuitry sends to the carrier signal decoding circuit through the frequency selective amplifier circuit.
Said single chip machine controlling circuit and memory circuit bidirectional data transfers.
Said electric current and short-circuit signal Acquisition Circuit adopt current transformer as signal collecting element, and its output signal sends to rectification adjustment, filter integral circuit.
Said disconnected zero phase voltage Acquisition Circuit adopts voltage transformer as signal collecting element, and its output signal sends to rectification, filtering, current limliting bleeder circuit.
Said fire alarm system interlock control buffer circuit by voltage signal output end connect resistance successively, the photoelectricity coupling circuit constitutes.
Said display circuit adopts the LCD LCD.
The sound-driving circuit of said police adopts the LM386 audio-frequency power amplifier.
Through adopting above-mentioned technical scheme, the invention has the beneficial effects as follows: this device adopts three-phase voltage Acquisition Circuit, overload, short circuit Acquisition Circuit, interlock control circuit acquired signal, realizes utilizing electric wire to send alert data through single chip machine controlling circuit; Do not need the secondary wiring; Bring very big facility to construction, have multiple electric fault signal and be integrated in one, it is simple to reach control; Thereby instruct the professional that fault is got rid of effectively, reach aim of safe power utilization.
Description of drawings
Fig. 1 is a frame assumption diagram of the present invention;
Fig. 2 is circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1; Electric signal of the present invention is gathered monitoring device; Comprise overcurrent and short-circuit signal Acquisition Circuit 1, disconnected zero phase voltage Acquisition Circuit 2, fire alarm system interlock control buffer circuit 3, single chip machine controlling circuit 4; The signal that said electric current and short-circuit signal Acquisition Circuit 1, disconnected zero phase voltage Acquisition Circuit 2 are gathered sends to comparison circuit 11; The output signal of comparison circuit 11, fire alarm system interlock control buffer circuit 3 exports display circuit 41, alert sound-driving circuit 42, outage drive circuit 43, carrier signal phase lock circuitry 45 to through single chip machine controlling circuit 4 controls; The output signal of said carrier signal phase lock circuitry 45 sends to carrier signal decoding circuit 47 through frequency selective amplifier circuit 46, said single chip machine controlling circuit 4 and memory circuit 48 bidirectional data transfers.
As shown in Figure 2, when live wire passed current transformer L1, phase line had electric current to pass through, and the phase line current is according to the ac voltage signal that L1 responded to of load electric power, along with size of current changes and changes.During overcurrent, the In1.05 that refers generally to surpass rated current doubly, so as electric current during through current transformer L1, L1 level of current transformer can the generation voltage signal; Resistance R 7 is to capacitor C 7 electric capacity chargings, by diode D2 rectification, and through by capacitor C 6, C8, C9, the ∏ type filter integral circuit that resistance R 9 is formed; Resistance through transformation resistance R11 can change the time of discharging and recharging, and is input to the 6th pin of comparator IC6, forms the 5th pin that setting voltage value sends to comparator IC6 by resistance R 10, R12; When the 6th pin voltage of comparator IC6 during greater than its 5th pin voltage, comparator IC6 internal comparator is overturn, and comparator IC6 pin uprises level by low level; Be directly connected to the input of photoelectric coupled circuit U4, the 7th pin output high level by comparator IC6 makes photoelectric coupled circuit U4 conducting; Its output becomes low level by original high level, is connected to the 1st pin of single-chip microcomputer IC1, counts through single-chip microcomputer IC1 internal delay time device; After 3600 seconds, export high level by the 20th pin of single-chip microcomputer IC1, through single-chip microcomputer IC1 internal delay time through resistance R 28 current limlitings; Make triode VT1 conducting, promote the relay J adhesive, make power cutoff mechanism thread off and move.
The 8th, 9,10 pin of comparator IC6 are formed a threshold higher voltage comparator, and when the 9th pin voltage of comparator IC6 during greater than its 10 pin voltage, comparator IC6 internal comparator is overturn; Its 8th pin uprises level by low level, is directly connected to the 1st pin of photoelectric coupled circuit U5, by the 8th pin output high level of comparator IC6; Make photoelectric coupled circuit U5 conducting, the 3rd pin of photoelectric coupled circuit U5 becomes low level by original high level, is connected to the 2nd pin of single-chip microcomputer IC1;, divides single-chip microcomputer IC1 internal logic routine data four tunnel outputs after judging; The 20th pin output high level of first via IC1 through resistance R 28 current limlitings, makes triode VT1 conducting; Promote the relay J adhesive, make power cutoff mechanism thread off and move.The second tunnel output is without single-chip microcomputer IC1 internal delay time, by the 17th pin output audio signal of single-chip microcomputer IC1, through capacitor C 11 couplings; Be input to the 3rd pin of LM386 audio-frequency power amplifier IC4, after audio frequency amplifies, promote loud speaker Y by its 5th output through capacitor C 12 and send chimes of doom; K1 pushes button; The low level triggering signal that the 35th pin of single-chip microcomputer IC1 is received, the 17th pin absence of audio signal output of single-chip microcomputer IC1, alert sound stops.Third Road output is formed phase lock circuitry by the multivibrator that LM567 tone decoder U1 and peripheral electric capacity 2C1, resistance 2R1, resistance 2R2 thereof constitute; Its frequency of oscillation is by the parameter determining of electric capacity 2C1, resistance 2R1, and carrier frequency is adjusted in the 150-300KHZ scope.Elementary L1, electric capacity 2C2, capacitor 2C3 by triode Q1, audio frequency transformer T constitute the frequency selective amplifier circuit; The 21st pin output high level signal by single-chip microcomputer IC1; Make LM567 tone decoder U1 obtain working power; LM567 tone decoder U1 starts working, and is coupled on local telephone network speaking wire or the AC network AC220V power line and is sent by secondary L2, the electric capacity 1C4 of audio frequency transformer T, sends data-signal to the carrier wave main frame.
Audio frequency transformer T1, LM567 ATD U2, triode Q2, LED by connecting successively constitute the carrier signal decoding circuit; The time constant of resistance 1R1, electric capacity 1C5 network has determined the voltage controlled oscillator of LM567 ATD U2; When the carrier wave extension set when main frame sends 150-300KHZ carrier wave command signal; Be coupled to the secondary L3 of audio frequency transformer T through electric capacity 1C1, audio frequency transformer T1, its secondary L3, electric capacity 1C2, electric capacity 1C3 form a carrier wave frequency-selective network.Signal after the frequency-selecting is coupled to the 3rd pin signal input part of LM567 ATD U2 through electric capacity 1C4; After LM567 ATD U2 decoding,, make triode Q2 conducting by its 8th pin output output low level; LED is lighted, and has received the carrier data signal of extension set.The four tunnel output is connected with LCD LCD IC5 by the 22nd, 23,24,25,26 of single-chip microcomputer IC1, by LCD LCD IC5 demonstration current state, explains that using power supply always has occurred electric fault, reaches the purpose of real time and on line monitoring.
When voltage transformer B1 primary coil has AC220V voltage, its secondary output AC2.2V, voltage transformer B1 was by linear output in 100: 1; Through diode D1 rectification, capacitor C 1, C2 filtering, be connected to comparator IC6 the 3rd, 2 pin by resistance R 1, R2 current limliting dividing potential drop, when the 3rd pin voltage of comparator IC6 during greater than its 2nd pin voltage; Comparator IC6 internal comparator is overturn, and its 1st pin uprises level by low level, is directly connected to the input of photoelectric coupled circuit U3; The 1st pin output high level by comparator IC6 makes photoelectric coupled circuit U3 conducting, and the 3rd pin of photoelectric coupled circuit U3 becomes low level by original high level; Be connected to the 13rd pin of single-chip microcomputer IC1, when single-chip microcomputer IC1 detects I/O mouth the 13rd pin and is low level, judge the line fault; Through the program control of single-chip microcomputer IC1 internal logic, by the 20th pin output high level of single-chip microcomputer IC1, through resistance R 28 current limlitings; Make triode VT1 conducting, promote the relay J adhesive, make power cutoff mechanism thread off and move.
When fire alarm system has the output of DC24V voltage signal,, be connected to the 1st pin of photoelectricity coupling circuit U6 through resistance R 20 current limlitings; Make photoelectricity coupling circuit U6 conducting, be input to the 3rd pin of single-chip microcomputer IC1, become low level by original high level; When single-chip microcomputer IC1 detects the I/O mouth and is low level, when the inner continuous detecting 0.5s of single-chip microcomputer IC1, by single-chip microcomputer IC1 the 20th pin output high level; Through resistance R 28 current limlitings; Make triode VT1 conducting, promote the relay J adhesive, make power cutoff mechanism thread off and move.
Memory IC 3 is used for the store alarms data, and the 1st, 2,3,4 pin of memory IC 3 transmit reading of data through 7,8,27,28 pin of parallel data and single-chip microcomputer IC1, and single-chip microcomputer IC1 internal data is recovered, and avoid occurring the endless loop state.
Above-describedly be merely a preferred embodiment of the present invention, can not limit the scope that this practicality is implemented, every equalization of doing according to claim of the present invention changes and decorates, and all should still belong to the scope that the present invention is contained.
Claims (7)
1. electric signal is gathered monitoring device; It is characterized in that: comprise overcurrent and short-circuit signal Acquisition Circuit (1), disconnected zero phase voltage Acquisition Circuit (2), fire alarm system interlock control buffer circuit (3), single chip machine controlling circuit (4); The signal that said electric current and short-circuit signal Acquisition Circuit (1), disconnected zero phase voltage Acquisition Circuit (2) are gathered sends to comparison circuit (11); The output signal of comparison circuit (11), fire alarm system interlock control buffer circuit (3) exports display circuit (41), alert sound-driving circuit (42), outage drive circuit (43), carrier signal phase lock circuitry (45) to through single chip machine controlling circuit (4) control, and the output signal of said carrier signal phase lock circuitry (45) sends to carrier signal decoding circuit (47) through frequency selective amplifier circuit (46).
2. electric signal according to claim 1 is gathered monitoring device, it is characterized in that: said single chip machine controlling circuit (4) and memory circuit (48) bidirectional data transfers.
3. electric signal according to claim 1 is gathered monitoring device, it is characterized in that: said electric current and short-circuit signal Acquisition Circuit (1) adopt current transformer as signal collecting element, and its output signal sends to rectification adjustment, filter integral circuit.
4. electric signal according to claim 1 is gathered monitoring device, it is characterized in that: said disconnected zero phase voltage Acquisition Circuit (2) adopts voltage transformer as signal collecting element, and its output signal sends to rectification, filtering, current limliting bleeder circuit.
5. electric signal according to claim 1 is gathered monitoring device, it is characterized in that: said fire alarm system interlock control buffer circuit (3) by voltage signal output end connect resistance successively, the photoelectricity coupling circuit constitutes.
6. electric signal according to claim 1 is gathered monitoring device, it is characterized in that: said display circuit (41) adopts the LCD LCD.
7. electric signal according to claim 1 is gathered monitoring device, it is characterized in that: the sound-driving circuit of said police (42) adopts the LM386 audio-frequency power amplifier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102746709A CN102394493A (en) | 2011-09-16 | 2011-09-16 | Electrical signal collection monitoring device |
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| CN2011102746709A CN102394493A (en) | 2011-09-16 | 2011-09-16 | Electrical signal collection monitoring device |
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| CN102394493A true CN102394493A (en) | 2012-03-28 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456129A (en) * | 2013-08-29 | 2013-12-18 | 江门市海星游艇制造有限公司 | Comprehensive failure warning system |
| CN103558502A (en) * | 2013-11-21 | 2014-02-05 | 国家电网公司 | Single-phase earth fault detection circuit, method and system |
| CN106168637A (en) * | 2016-08-30 | 2016-11-30 | 刘建华 | Voltage on-line measuring device |
| CN106990353A (en) * | 2017-05-09 | 2017-07-28 | 浙江英洛华新能源科技有限公司 | A kind of relay fault detecting circuit and the relay with the circuit |
| CN107408809A (en) * | 2015-01-13 | 2017-11-28 | 特灵国际有限公司 | Improved wireless hvac components |
| CN107967783A (en) * | 2017-12-26 | 2018-04-27 | 杭州佳和电气股份有限公司 | A kind of intelligent electric fire hazard monitoring early warning system and method |
| CN110603452A (en) * | 2017-05-08 | 2019-12-20 | 伊利诺斯工具制品有限公司 | Method and apparatus for detecting leakage current |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211682Y (en) * | 1994-11-10 | 1995-11-01 | 赵伟庭 | Power wire switch with lighted digit display |
| CN201402962Y (en) * | 2009-03-11 | 2010-02-10 | 福建俊豪电子有限公司 | Electric fire detection control integrated system |
| CN201965720U (en) * | 2010-12-29 | 2011-09-07 | 福建俊豪电子有限公司 | Temperature monitoring and alarm circuit for electric control cabinets |
| CN202230589U (en) * | 2011-09-16 | 2012-05-23 | 福建俊豪电子有限公司 | Electrical signal acquisition monitoring device |
-
2011
- 2011-09-16 CN CN2011102746709A patent/CN102394493A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211682Y (en) * | 1994-11-10 | 1995-11-01 | 赵伟庭 | Power wire switch with lighted digit display |
| CN201402962Y (en) * | 2009-03-11 | 2010-02-10 | 福建俊豪电子有限公司 | Electric fire detection control integrated system |
| CN201965720U (en) * | 2010-12-29 | 2011-09-07 | 福建俊豪电子有限公司 | Temperature monitoring and alarm circuit for electric control cabinets |
| CN202230589U (en) * | 2011-09-16 | 2012-05-23 | 福建俊豪电子有限公司 | Electrical signal acquisition monitoring device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456129A (en) * | 2013-08-29 | 2013-12-18 | 江门市海星游艇制造有限公司 | Comprehensive failure warning system |
| CN103558502A (en) * | 2013-11-21 | 2014-02-05 | 国家电网公司 | Single-phase earth fault detection circuit, method and system |
| CN107408809A (en) * | 2015-01-13 | 2017-11-28 | 特灵国际有限公司 | Improved wireless hvac components |
| CN107408809B (en) * | 2015-01-13 | 2019-12-10 | 特灵国际有限公司 | Improved wireless HVAC module |
| CN106168637A (en) * | 2016-08-30 | 2016-11-30 | 刘建华 | Voltage on-line measuring device |
| CN110603452A (en) * | 2017-05-08 | 2019-12-20 | 伊利诺斯工具制品有限公司 | Method and apparatus for detecting leakage current |
| CN110603452B (en) * | 2017-05-08 | 2023-03-24 | 伊利诺斯工具制品有限公司 | Method and apparatus for detecting leakage current |
| CN106990353A (en) * | 2017-05-09 | 2017-07-28 | 浙江英洛华新能源科技有限公司 | A kind of relay fault detecting circuit and the relay with the circuit |
| CN106990353B (en) * | 2017-05-09 | 2023-06-16 | 浙江英洛华新能源科技有限公司 | Relay fault detection circuit and relay with same |
| CN107967783A (en) * | 2017-12-26 | 2018-04-27 | 杭州佳和电气股份有限公司 | A kind of intelligent electric fire hazard monitoring early warning system and method |
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Application publication date: 20120328 |