CN201965206U - State signal storage circuit of electric switch - Google Patents
State signal storage circuit of electric switch Download PDFInfo
- Publication number
- CN201965206U CN201965206U CN2010206991664U CN201020699166U CN201965206U CN 201965206 U CN201965206 U CN 201965206U CN 2010206991664 U CN2010206991664 U CN 2010206991664U CN 201020699166 U CN201020699166 U CN 201020699166U CN 201965206 U CN201965206 U CN 201965206U
- Authority
- CN
- China
- Prior art keywords
- electric switch
- unit
- circuit
- electric
- output terminal
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Alarm Systems (AREA)
Abstract
The utility model relates to the field of the safety monitoring of an electric power system, in particular to a state signal storage circuit of an electric switch, which has the technical scheme that the state signal storage circuit of the electric switch is formed by respectively connecting an electric switch state signal detection unit, a time information storage unit, a loudspeaker warning unit, an RS485 communication unit and an electric power wire carrier wave generation unit with a singlechip control unit. Through the adoption of the technical scheme, when the electric switch to be tested is disconnected and switched off because of the fault of the electric power system, the state signal storage circuit of the electric switch can immediately form warning information through the disconnecting and switching-off action of the electric switch, in addition, the warning information is uploaded to a host personnel computer (PC) to be stored, a clue storage effect is realized for the accident reason survey after electric fire hazards, warning signals can be sent to a far-end monitoring center through electric wire carrier waves, and the safety prevention and control capability of the electric system is improved.
Description
Technical field
The utility model relates to power system security monitoring field, relates in particular to a kind of status signal memory circuit of electric switch.
Background technology
Low-voltage circuit breaker (once claiming automatic switch) is a kind of not only can the connection and disjunction normal load electric current and overload electric current; can also connect device for switching with the disjunction short-circuit current; its in electrical system except that playing control action; also has defencive function; as overload, short circuit, under-voltage and earth leakage protection; therefore, low-voltage circuit breaker has been widely used in the outgoings at different levels of low-voltage distribution system.Along with the power supply of electric system in recent years and the continuous increase of electricity consumption scale, its design proposal is also complicated day by day, more there is power consumer usually to transform old power supply facilities for saving cost, for Electrical Safety has been buried hidden danger, and in case electrical fire takes place, the electric components of low-voltage circuit breaker is very likely burnt, and makes the accident investigation work progress difficulty of fire department.
The utility model content
At the deficiencies in the prior art, the utility model proposes a kind of on off state that can detect electric switch in real time, the switch state signal that photoelectric coupled circuit is gathered is exported via Single-chip Controlling, be sent to the status signal memory circuit of the electric switch of preserving at the fire-fighting center by power line carrier.
The technical solution adopted in the utility model is as follows:
A kind of status signal memory circuit of electric switch is characterized in that, comprises at least:
Several electric switch state detecting signal units of multichannel, the output terminal of a termination one road tested electric switch is imported on its each road, and output terminal is connected to the signal input part of Single-chip Controlling unit;
One time information memory cell, its data bus one are terminated at a universal serial bus end of Single-chip Controlling unit;
One loudspeaker alarm unit, its input end connect the audio alarming signal output terminal of single-chip microcomputer control module;
One RS485 communication unit connects the data transmission interface of single-chip microcomputer control module, and output terminal connects a PC by the communications cable;
One power line carrier generating unit, the switch controlling signal input end of its power supply connects a control output end of single-chip microcomputer control module, and output is coupled on the electric power cable;
One Single-chip Controlling unit is connected to above-mentioned electric switch state detecting signal unit, temporal information storage unit, loudspeaker alarm unit, RS485 communication unit and power line carrier generating unit;
Further, described electric switch state detecting signal unit comprises: power sense circuit, optical coupling isolation circuit, described power sense circuit is a voltage stabilizing diode voltage-stabilized power supply circuit, its input end is connected to the zero line of tested electric switch and the output terminal of live wire, the described optical coupling isolation circuit of output termination, the output terminal of described optical coupling isolation circuit connects the single-chip microcomputer control module.
Further, described voltage stabilizing diode voltage-stabilized power supply circuit is a condenser type isolated buck mu balanced circuit, described optical coupling isolation circuit is a non-linear optocoupler device, its output terminal one end ground connection, and the other end connects the single-chip microcomputer control module, meets reference voltage V CC by resistance R 4 by resistance R 3.
Further, the status signal memory circuit of described electric switch also comprises a perpetual calendar circuit unit, its control interface connects the control output end of described Single-chip Controlling unit, and its data-interface is connected with the data transmission port of Single-chip Controlling unit, temporal information storage unit respectively.
Further, described power line carrier generating unit comprises: the oscillatory circuit cascade of two different frequencies that are made of 2 time base circuits and be connected to a coupling transformer and form the high frequency modulated pulse signal generation circuit.
The utility model is by adopting technique scheme, the beneficial effect that has is: 1. when tested electric switch breaks off relations tripping operation because of electric power system fault after, the action formation warning message that the status signal memory circuit of electric switch can break off relations it immediately and trip, and warning message is uploaded to upper PC by the RS485 communication unit preserves, played the effect that clue is preserved for accident causal investigation after the electrical fire calamity; And its can implement local to report to the police, alerting signal can be sent to the remote monitoring center by power line carrier again, improved the safe prevention and control ability of electrical system.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is originally to be circuit theory diagrams with novel.
Embodiment
Now with embodiment the utility model is further specified in conjunction with the accompanying drawings.
A kind of status signal memory circuit of electric switch has following unit module:
Several electric switch state detecting signal units 101 of multichannel ..., 10n, the output terminal of a termination one road tested electric switch is imported on its each road, output terminal is connected to the signal input part of Single-chip Controlling unit;
One time information memory cell 2, its data bus one are terminated at a universal serial bus end of Single-chip Controlling unit;
One loudspeaker alarm unit 3, its input end connect the audio alarming signal output terminal of single-chip microcomputer control module;
One RS485 communication unit 4 connects the data transmission interface of single-chip microcomputer control module, and output terminal connects a PC by the communications cable;
One power line carrier generating unit 5, the switch controlling signal input end of its power supply connects a control output end of single-chip microcomputer control module, and output is coupled on the electric power cable;
One Single-chip Controlling unit 6, be connected to above-mentioned electric switch state detecting signal unit 101 ..., 10n, temporal information storage unit 2, loudspeaker alarm unit 3, RS485 communication unit and power line carrier generating unit 5;
As one preferred embodiment, described electric switch state detecting signal unit 101 is to be connected and composed by power sense circuit and optical coupling isolation circuit two parts, described power sense circuit is a voltage stabilizing diode voltage-stabilized power supply circuit, its input end is connected to the zero line of tested electric switch and the output terminal of live wire, the described optical coupling isolation circuit of output termination, the output terminal of described optical coupling isolation circuit connects single-chip microcomputer control module 6, at this, electric switch state detecting signal unit 102,103, ..., the structure of 10n is same as electric switch state detecting signal unit 101, repeats no more.
Further, described voltage stabilizing diode voltage-stabilized power supply circuit is a condenser type isolated buck mu balanced circuit, described optical coupling isolation circuit is a non-linear optocoupler device, its output terminal one end ground connection, and the other end connects single-chip microcomputer control module 6, meets reference voltage V CC by resistance R 4 by resistance R 3.Concrete, described condenser type isolated buck mu balanced circuit is by isolated buck capacitor C 1, bleeder resistance R1, half-wave rectification diode D1, electrolytic capacitor filter C2, voltage stabilizing diode DW1, pull-up resistor R2, high-frequency filter capacitor C3 constitutes, and its live wire is imported an end and connect the positive pole of half-wave rectification diode D1, the negative pole of the negative pole one termination voltage stabilizing diode DW1 of half-wave rectification diode D1 by isolated buck capacitor C 1, the positive pole one of voltage stabilizing diode DW1 is terminated at zero line, electrolytic capacitor filter C2, pull-up resistor R2, high-frequency filter capacitor C3 is parallel to the two ends of described voltage stabilizing diode DW1, and preferred, the output voltage of described condenser type isolated buck mu balanced circuit is 3V.
As one preferred embodiment, the status signal memory circuit of described electric switch also comprises a perpetual calendar circuit unit, its control interface connects the control output end of described Single-chip Controlling unit, its data-interface respectively with the Single-chip Controlling unit, the data transmission port of temporal information storage unit connects, concrete, described perpetual calendar circuit unit is to be made of perpetual calendar integrated circuit 1302 external oscillation circuits and power circuit, its data I/O holds by iic bus and Single-chip Controlling unit 6, temporal information storage unit 2 connects, be used for sending when asking in Single-chip Controlling unit 6, output time information is controlled write time information memory cells 2 to Single-chip Controlling unit 6 and with temporal information by Single-chip Controlling unit 6.
As one preferred embodiment, described power line carrier generating unit 5 comprises: the oscillatory circuit cascade of two different frequencies that are made of 2 time base circuits and be connected to a coupling transformer and form the high frequency modulated pulse signal generation circuit, concrete, described power line carrier generation circuit is by 555 chip U5,555 chip U6, resistance R 21-R25, coupling transformer BT1, capacitor C 8-C13 connects to form, when the single-chip microcomputer I of Single-chip Controlling unit 6 C1 the 32nd pin output electronegative potential makes triode Q1 conducting through resistance R 19 current limlitings, for 555 chip U5 and 555 chip U6 provide power supply, chip U5, U6 is respectively the oscillatory circuit of two different frequencies of 555 time base circuits composition.First 555 chip U5 constitutes low-frequency oscillatory network, and mainly by capacitor C 13, resistance R 22 decisions, 3 pin output frequencies are the low frequency signal of F1 to frequency F1.When 3 pin of 555 chip U5 are exported high level, the high-frequency oscillating circuits work of second 555 chip U6 formation, its oscillation frequency F2 is mainly by C15, the R24 decision, and second oscillation frequency F2 is much larger than first oscillation frequency F1,3 pin output oscillation frequency at second 555 chip U6 is the pulse-modulated signal of F2 like this, this modulation signal is by the triode Q2 by high frequency, coupling transformer BT1, capacitor C 17, the driving circuit that capacitor C 18 is formed produces the high frequency modulated pulse on line of electric force, the high frequency modulated pulse signal through power line transmission to fire protection control center, by fire protection control center carrier wave main frame reception carrier alerting signal.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection domain of the present utility model.
Claims (5)
1. the status signal memory circuit of an electric switch is characterized in that, comprises at least:
Several electric switch state detecting signal units of multichannel, the output terminal of a termination one road tested electric switch is imported on its each road, and output terminal is connected to the signal input part of Single-chip Controlling unit;
One time information memory cell, its data bus one are terminated at a universal serial bus end of Single-chip Controlling unit;
One loudspeaker alarm unit, its input end connect the audio alarming signal output terminal of single-chip microcomputer control module;
One RS485 communication unit connects the data transmission interface of single-chip microcomputer control module, and output terminal connects a PC by the communications cable;
One power line carrier generating unit, the switch controlling signal input end of its power supply connects a control output end of single-chip microcomputer control module, and output is coupled on the electric power cable;
One Single-chip Controlling unit is connected to above-mentioned electric switch state detecting signal unit, temporal information storage unit, loudspeaker alarm unit, RS485 communication unit and power line carrier generating unit.
2. the status signal memory circuit of a kind of electric switch as claimed in claim 1, it is characterized in that: described electric switch state detecting signal unit comprises: power sense circuit, optical coupling isolation circuit, described power sense circuit is a voltage stabilizing diode voltage-stabilized power supply circuit, its input end is connected to the zero line of tested electric switch and the output terminal of live wire, the described optical coupling isolation circuit of output termination, the output terminal of described optical coupling isolation circuit connects the single-chip microcomputer control module.
3. the status signal memory circuit of a kind of electric switch as claimed in claim 2, it is characterized in that: described voltage stabilizing diode voltage-stabilized power supply circuit is a condenser type isolated buck mu balanced circuit, described optical coupling isolation circuit is a non-linear optocoupler device, its output terminal one end ground connection, the other end connects the single-chip microcomputer control module, meets reference voltage V CC by resistance R 4 by resistance R 3.
4. the status signal memory circuit of a kind of electric switch as claimed in claim 1, it is characterized in that: also comprise a perpetual calendar circuit unit, its control interface connects the control output end of described Single-chip Controlling unit, and its data-interface is connected with the data transmission port of Single-chip Controlling unit, temporal information storage unit respectively.
5. the status signal memory circuit of a kind of electric switch as claimed in claim 1, it is characterized in that: described power line carrier generating unit comprises: the oscillatory circuit cascade of two different frequencies that are made of 2 time base circuits and be connected to a coupling transformer and form the high frequency modulated pulse signal generation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206991664U CN201965206U (en) | 2010-12-29 | 2010-12-29 | State signal storage circuit of electric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206991664U CN201965206U (en) | 2010-12-29 | 2010-12-29 | State signal storage circuit of electric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201965206U true CN201965206U (en) | 2011-09-07 |
Family
ID=44527752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206991664U Expired - Fee Related CN201965206U (en) | 2010-12-29 | 2010-12-29 | State signal storage circuit of electric switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201965206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007084A (en) * | 2015-08-05 | 2015-10-28 | 成都君禾天成科技有限公司 | Alarm transmitting circuit using power line carrier to transmit and communicate |
| CN106922052A (en) * | 2017-03-22 | 2017-07-04 | 中山品上照明有限公司 | The LED control device that a kind of compatible voltage light modulation is dimmed with PWM |
-
2010
- 2010-12-29 CN CN2010206991664U patent/CN201965206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007084A (en) * | 2015-08-05 | 2015-10-28 | 成都君禾天成科技有限公司 | Alarm transmitting circuit using power line carrier to transmit and communicate |
| CN106922052A (en) * | 2017-03-22 | 2017-07-04 | 中山品上照明有限公司 | The LED control device that a kind of compatible voltage light modulation is dimmed with PWM |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201266829Y (en) | Residual current type electric detector for monitoring fire | |
| CN201270416Y (en) | Reverse connection protection circuit | |
| CN104638768A (en) | Intelligent power distribution security control terminal based on residential electricity consumption | |
| CN203596508U (en) | Multifunctional household safety protection distribution box | |
| CN202818107U (en) | Power supply device based on power provided by ethernet | |
| CN210038027U (en) | Comprehensive fault line selection device for power distribution system | |
| CN201965206U (en) | State signal storage circuit of electric switch | |
| CN202004426U (en) | Low-voltage line protection circuit | |
| CN204597453U (en) | Electric prospection switch | |
| CN201993868U (en) | Circuit for monitoring circuit breaker and alarming | |
| CN201369085Y (en) | Electricity leakage fire disaster detection alarm control integration system | |
| CN105429246A (en) | Circuit and method for automatically disconnecting terminal after full charge | |
| CN201975769U (en) | Low-voltage power-distribution neutral line monitoring device | |
| CN202034767U (en) | Three-phase electrical network over-current monitoring alarm circuit | |
| CN201555915U (en) | High pressure earthed wire monitoring alarm device | |
| CN205610225U (en) | Transformer excess load automatic switching control equipment | |
| CN201993871U (en) | Novel fire detector | |
| CN102570203B (en) | Intelligent time delay socket and use method thereof | |
| CN204615364U (en) | There is control, protection and the motor intelligent terminal of function for monitoring | |
| CN215835197U (en) | Power utilization safety monitoring control box | |
| CN202009226U (en) | Three-phase power distribution carrier monitoring device for low-voltage cabinet | |
| CN213402568U (en) | Novel intelligent low-voltage circuit breaker | |
| CN103018540B (en) | Zero-sequence voltage detection device of 6-10 KV circuit | |
| CN219371998U (en) | Circuit for cloud miniature circuit breaker | |
| CN101419436B (en) | Switch status induction system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |