CN202473664U - Intelligent air switch condition indicator - Google Patents
Intelligent air switch condition indicator Download PDFInfo
- Publication number
- CN202473664U CN202473664U CN2012200512398U CN201220051239U CN202473664U CN 202473664 U CN202473664 U CN 202473664U CN 2012200512398 U CN2012200512398 U CN 2012200512398U CN 201220051239 U CN201220051239 U CN 201220051239U CN 202473664 U CN202473664 U CN 202473664U
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- circuit
- air switch
- optical coupling
- output
- coupling isolation
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Abstract
The utility model relates to an intelligent air switch condition indicator which comprises a voltage circuit detection circuit, an optical coupling isolation circuit and a microprocessor control circuit. An output signal of the voltage circuit detection circuit is sent to the microprocessor control circuit through the optical coupling isolation circuit. The microprocessor control circuit controls an output to an alarm circuit and a communication circuit. The indicator utilizes the voltage circuit detection circuit to collect working conditions of an air switch. When the air switch trips, as no voltage circuit is generated, high and low level signals of the optical coupling isolation circuit of an I/O end of a microprocessor is detected by the microprocessor, and control signals are converted by an RS485 communication interface and then sent to a PC machine. As a result, a remote monitoring of a closing or releasing state of the air switch is reached, thereby guiding personnel to timely eliminate malfunctions.
Description
Technical field
The utility model relates to a kind of positioning indicator, particularly be a kind of intelligent air switch positioning indicator.
Background technology
Air switch is widely used in distribution system, acts on the protection electrical fire, but traditional air switch is when detecting fault; Can send the instruction of threading off; But can not show trouble location, and the record shortcomings such as operate time of threading off, can not satisfy the electric fireproof requirement of intelligent building.
The utility model content
The purpose of the utility model is to overcome above-mentioned deficiency, and a kind of intelligent air switch positioning indicator is provided.
The utility model solves the technical scheme that its technical problem adopted: a kind of intelligent air switch positioning indicator; Comprise voltage circuit testing circuit, optical coupling isolation circuit and microprocessor control circuit; The output signal of said voltage circuit testing circuit sends to microprocessor control circuit through optical coupling isolation circuit, and microprocessor control circuit control exports warning circuit and telecommunication circuit to.
Said voltage circuit testing circuit is by the input of the output connection air switch of live wire, and the output of air switch is connected to the output of load, and said air switch is parallel with the series circuit of first resistance and light-emitting diode.
Said optical coupling isolation circuit is made up of the diode, second resistance, photoelectrical coupler and the 4th resistance that connect successively, and the output of photoelectrical coupler is connected with the 3rd resistance that connects power supply.
Said telecommunication circuit is held by the COM that 75176 communication interface chips are connected to the RS485 communication interface, and the COM end conversion through the RS485 communication interface is sent to PC again.
Through adopting above-mentioned technical scheme; The beneficial effect of the utility model is: the utility model adopts the voltage circuit testing circuit to gather the operating state of air switch, when air switch is threaded off action, owing to there is not voltage circuit to produce; Microprocessor detects the high-low level signal of the optical coupling isolation circuit of its I/O end; Be sent to PC through the conversion of RS485 communication interface, reach the remote monitoring air switch and be in combined floodgate or trip status, instruct personnel in time to troubleshooting of faults.
Description of drawings
Fig. 1 is the frame assumption diagram of the utility model;
Fig. 2 is the circuit theory diagrams of the utility model.
Embodiment
Like Fig. 1, shown in Figure 2; A kind of intelligent air switch positioning indicator of the utility model; Comprise voltage circuit testing circuit, optical coupling isolation circuit and microprocessor control circuit; The output signal of said voltage circuit testing circuit sends to microprocessor control circuit through optical coupling isolation circuit, and microprocessor control circuit control exports warning circuit and telecommunication circuit to.
Said voltage circuit testing circuit is connected the input of air switch by the output of live wire L; The output of air switch is connected to the output of load; Said air switch is parallel with the series circuit of first resistance R 1,1R1 and LED 1, LED2; Said optical coupling isolation circuit is made up of the diode D1 that connects successively, 1D1, second resistance R 2,1R2, photoelectrical coupler U1, U2 and the 4th resistance R 4,1R4, and the output of photoelectrical coupler U1, U2 is connected with the 3rd resistance R 3, the 1R3 that connects power supply respectively.
When the air switch in each loop was in "on" position, A1, A2 point no-voltage were poor, made LED 1, the equal no-voltage of LED2 and not luminous.When in case wherein a branch road air switch is in the dropout gate-dividing state, as: A, C point then form potential difference, make this potential difference through the first resistance 1R1 current limliting; Make that LED 2 is luminous, simultaneously, through diode 1D1 rectification, the second resistance 1R2 current limliting; Make photoelectrical coupler U2 get into conducting state, be output as low level signal, be input to microprocessor IC1 the 33rd pin I/O port through the 4th resistance 1R4 and also be low level state; The expression air switch is threaded off; After microprocessor IC1 inter-process, send control signal, form the RS485 datel circuit, change being sent to PC through the COM end of RS485 communication interface by the 1st, 2,3,4 ends of 75176 communication interface chip IC2 and the 10th, 11,25 ends of microprocessor IC1; Send the current information data through 75176 communication interface chip IC2 to PC; Show the preservation data message by PC, reach the remote monitoring air switch and be in combined floodgate or trip status, instruct personnel in time to troubleshooting of faults.
An above-described preferred embodiment that is merely the utility model can not limit the scope that the utility model is implemented, and every equalization of being done according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.
Claims (4)
1. intelligent air switch positioning indicator; It is characterized in that: comprise voltage circuit testing circuit, optical coupling isolation circuit and microprocessor control circuit; The output signal of said voltage circuit testing circuit sends to microprocessor control circuit through optical coupling isolation circuit, and microprocessor control circuit control exports warning circuit and telecommunication circuit to.
2. intelligent air switch positioning indicator according to claim 1; It is characterized in that: said voltage circuit testing circuit is connected the input of air switch by the output of live wire; The output of air switch is connected to the output of load, and said air switch is parallel with the series circuit of first resistance and light-emitting diode.
3. intelligent air switch positioning indicator according to claim 1 and 2; It is characterized in that: said optical coupling isolation circuit is made up of the diode, second resistance, photoelectrical coupler and the 4th resistance that connect successively, and the output of photoelectrical coupler is connected with the 3rd resistance that connects power supply.
4. intelligent air switch positioning indicator according to claim 1 and 2; It is characterized in that: said telecommunication circuit is held by the COM that 75176 communication interface chips are connected to the RS485 communication interface, and the COM end conversion through the RS485 communication interface is sent to PC again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200512398U CN202473664U (en) | 2012-02-17 | 2012-02-17 | Intelligent air switch condition indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200512398U CN202473664U (en) | 2012-02-17 | 2012-02-17 | Intelligent air switch condition indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473664U true CN202473664U (en) | 2012-10-03 |
Family
ID=46921807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200512398U Expired - Fee Related CN202473664U (en) | 2012-02-17 | 2012-02-17 | Intelligent air switch condition indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473664U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445593A (en) * | 2016-01-22 | 2016-03-30 | 成都纵横智控科技有限公司 | A fault detection apparatus and method for electrical equipment |
| CN106338685A (en) * | 2015-07-13 | 2017-01-18 | 珠海优特电力科技股份有限公司 | Air switch state detection device, air switch and air switch state detection system |
| CN110133566A (en) * | 2019-04-04 | 2019-08-16 | 国网山东省电力公司济宁供电公司 | A kind of intelligent electric energy meter RS485 communication interface automatic fault selftesting isolating device |
| CN113922499A (en) * | 2021-09-15 | 2022-01-11 | 国网重庆市电力公司营销服务中心 | Power plant current transformer transformation ratio self-adaptive switching method and system |
| CN113985263A (en) * | 2021-04-27 | 2022-01-28 | 国网河南省电力公司南阳供电公司 | Device for remotely monitoring on-off state of air switch |
-
2012
- 2012-02-17 CN CN2012200512398U patent/CN202473664U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338685A (en) * | 2015-07-13 | 2017-01-18 | 珠海优特电力科技股份有限公司 | Air switch state detection device, air switch and air switch state detection system |
| CN105445593A (en) * | 2016-01-22 | 2016-03-30 | 成都纵横智控科技有限公司 | A fault detection apparatus and method for electrical equipment |
| CN110133566A (en) * | 2019-04-04 | 2019-08-16 | 国网山东省电力公司济宁供电公司 | A kind of intelligent electric energy meter RS485 communication interface automatic fault selftesting isolating device |
| CN110133566B (en) * | 2019-04-04 | 2021-03-30 | 国网山东省电力公司济宁供电公司 | Intelligent electric energy meter RS485 communication interface fault self-detection isolating device |
| CN113985263A (en) * | 2021-04-27 | 2022-01-28 | 国网河南省电力公司南阳供电公司 | Device for remotely monitoring on-off state of air switch |
| CN113922499A (en) * | 2021-09-15 | 2022-01-11 | 国网重庆市电力公司营销服务中心 | Power plant current transformer transformation ratio self-adaptive switching method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20130217 |