CN203117403U - Remote equipment power supply monitoring system - Google Patents
Remote equipment power supply monitoring system Download PDFInfo
- Publication number
- CN203117403U CN203117403U CN 201320045680 CN201320045680U CN203117403U CN 203117403 U CN203117403 U CN 203117403U CN 201320045680 CN201320045680 CN 201320045680 CN 201320045680 U CN201320045680 U CN 201320045680U CN 203117403 U CN203117403 U CN 203117403U
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- China
- Prior art keywords
- circuit
- power supply
- monitoring system
- supply monitoring
- remote equipment
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- 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
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Power Sources (AREA)
Abstract
The utility model relates to a remote equipment power supply monitoring system. The remote equipment power supply monitoring system comprises a voltage detecting circuit and a single chip microcomputer control circuit. An output end of the voltage detecting circuit is connected with an input end of the single chip microcomputer control circuit through a trigger circuit; and an output end of the single chip microcomputer control circuit is connected with an RS485 communication interface circuit. When a power grid is powered off, instructions are transmitted to the RS485 communication interface circuit through the single chip microcomputer control circuit, and the instructions are transmitted to a duty room, and then, alarm information is emitted; and therefore, personnel can be guided to handle the power failure.
Description
Technical field
The utility model relates to a kind of supervisory system, particularly be a kind of remote equipment power supply monitoring system.
Background technology
In some important occasions, behind grid power blackout, equipment just can't operate as normal, will cause immeasurable economic loss.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of remote equipment power supply monitoring system is provided.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of remote equipment power supply monitoring system, comprise voltage detecting circuit and single chip machine controlling circuit, the output terminal of described voltage detecting circuit is connected to the input end of single chip machine controlling circuit through trigger circuit, and the output terminal of described single chip machine controlling circuit is connected with the RS485 communication interface circuit.
Preferably, the output signal of the AC220V ac voltage circuit that is made of live wire L, zero line N of described voltage detecting circuit sends to rectification, filtering, mu balanced circuit and constitutes.
Preferably, described trigger circuit adopt photoelectrical coupler U1.
Preferably, described single chip machine controlling circuit adopts 89S52 single-chip microcomputer IC1.
Preferably, described RS485 communication interface circuit is connected to the background terminal host computer by SN75176 communication interface chip IC2.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: when grid power blackout, the utility model sends instruction by single chip machine controlling circuit to the RS485 communication interface circuit, reach duty room through system bus, send warning message, thereby instruct personnel to the processing of power failure fault.
Description of drawings
Fig. 1 is frame assumption diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of remote equipment power supply monitoring system of the present utility model, comprise voltage detecting circuit 1 and single chip machine controlling circuit 2, the output terminal of described voltage detecting circuit 1 is connected to the input end of single chip machine controlling circuit 2 through trigger circuit 11, and the output terminal of described single chip machine controlling circuit 2 is connected with RS485 communication interface circuit 21.
Described voltage detecting circuit 1 is by live wire L, the output signal of the AC220V ac voltage circuit that zero line N constitutes sends to rectification, filtering, mu balanced circuit constitutes, live wire L holds the C1 step-down through point, resistance R 1 shunting, diode D1 rectification, capacitor C 2 filtering, voltage stabilizing diode DW voltage stabilizing, this voltage signal is transferred to photoelectrical coupler U1, make photoelectrical coupler U1 conducting, it is output as low level signal, this signal is through resistance R 4 current limlitings, be input to the 34th pin I/O end of 89S52 single-chip microcomputer IC1, after the identification of 89S52 single-chip microcomputer IC1 internal processes, do not send control signal, illustrate that this moment, voltage was in normal condition.
As live wire L, when zero line N does not constitute ac voltage circuit, diode D1 does not have voltage output, photoelectrical coupler U1 does not have the power supply input yet, photoelectrical coupler U1 is ended, it is output as high level signal, this signal is through resistance R 4 current limlitings, be input to the 34th pin I/O end of 89S52 single-chip microcomputer IC1, after the identification of 89S52 single-chip microcomputer IC1 internal processes, send control signal, connect to form RS485 communication interface circuit 21 by 89S52 single-chip microcomputer IC1 and SN75176 communication interface chip IC2, send the driving command signal by 89S52 single-chip microcomputer IC1 to SN75176 communication interface chip IC2, after SN75176 communication interface chip IC2 decoding, reach the background terminal host computer by system bus, system software shows current power failure failure message, thereby instructs personnel to the processing of power failure fault.
Above-described only is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.
Claims (5)
1. remote equipment power supply monitoring system, it is characterized in that: comprise voltage detecting circuit (1) and single chip machine controlling circuit (2), the output terminal of described voltage detecting circuit (1) is connected to the input end of single chip machine controlling circuit (2) through trigger circuit (11), and the output terminal of described single chip machine controlling circuit (2) is connected with RS485 communication interface circuit (21).
2. remote equipment power supply monitoring system according to claim 1 is characterized in that: the output signal of the AC220V ac voltage circuit that described voltage detecting circuit (1) is made of live wire L, zero line N sends to rectification, filtering, mu balanced circuit and constitutes.
3. remote equipment power supply monitoring system according to claim 1 is characterized in that: described trigger circuit (11) employing photoelectrical coupler U1.
4. remote equipment power supply monitoring system according to claim 1 is characterized in that: described single chip machine controlling circuit (2) employing 89S52 single-chip microcomputer IC1.
5. remote equipment power supply monitoring system according to claim 1, it is characterized in that: described RS485 communication interface circuit (21) is connected to the background terminal host computer by SN75176 communication interface chip IC2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320045680 CN203117403U (en) | 2013-01-22 | 2013-01-22 | Remote equipment power supply monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320045680 CN203117403U (en) | 2013-01-22 | 2013-01-22 | Remote equipment power supply monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203117403U true CN203117403U (en) | 2013-08-07 |
Family
ID=48897738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320045680 Expired - Fee Related CN203117403U (en) | 2013-01-22 | 2013-01-22 | Remote equipment power supply monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203117403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093805A (en) * | 2016-08-30 | 2016-11-09 | 李纳 | Novel power supply supervising device |
-
2013
- 2013-01-22 CN CN 201320045680 patent/CN203117403U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093805A (en) * | 2016-08-30 | 2016-11-09 | 李纳 | Novel power supply supervising device |
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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: 20130807 Termination date: 20140122 |