CN204989310U - Quick monitoring devices of multichannel voltage electric current - Google Patents
Quick monitoring devices of multichannel voltage electric current Download PDFInfo
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- CN204989310U CN204989310U CN201520819734.2U CN201520819734U CN204989310U CN 204989310 U CN204989310 U CN 204989310U CN 201520819734 U CN201520819734 U CN 201520819734U CN 204989310 U CN204989310 U CN 204989310U
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- detection circuit
- electric current
- circuit
- voltage
- mcu
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Abstract
The utility model relates to an electrical equipment monitoring devices specifically belongs to a quick monitoring devices of multichannel voltage electric current, including voltage detection circuit, current detection circuit, AD acquisition circuit, MCU and display device, voltage detection circuit and current detection circuit parallel connection after with the AD acquisition circuit series connection, MCU connect in AD acquisition circuit's rear end, display device pass through the RS485 interface with MCU be connected. The utility model relates to a quick monitoring devices of multichannel voltage electric current not only can correctly detect out power line's multichannel output voltage and current parameter, and whether can also diagnose by oneself has unusually, can avoid leading to entire system unstability or potential safety hazard unusually because of voltage and current detection circuit, for power line's reliability provides the active factor, has extremely strong practical value, can extensively popularize and apply.
Description
Technical field
The utility model relates to a kind of electrical equipment monitoring device, specifically belongs to a kind of plurality of voltages electric current fast monitored device.
Background technology
Electric current and voltage value many employings taking turn display of current electric power supervisory control each road power supply, the electric current and voltage reacting condition instantaneous for display is comparatively slow, can there is following bad problem like this:
1, the change for the short time is difficult to make a response, and is unfavorable in very first time investigation situation;
2, taking turn display is for the situation real-time condition underaction on each road, is unfavorable for the understanding to line load ability.
Summary of the invention
The utility model is the shortcoming for the above prior art, and a kind of hardware device based on embedded system is provided, by voltage, information transmission between current detection circuit and MCU, the electric current and voltage data of each circuit of Real-Time Monitoring, make corresponding display in time and report to the police, meeting the grasp of staff to line condition.
For solving the problems of the technologies described above, the utility model takes following technical scheme:
A kind of plurality of voltages electric current fast monitored device, comprises voltage detecting circuit, current detection circuit, A/D Acquisition Circuit, MCU and display device; Be connected in series with described A/D Acquisition Circuit after described voltage detecting circuit and current detection circuit are connected in parallel, described MCU is connected to the rear end of A/D Acquisition Circuit, and described display device is connected with described MCU by RS485 interface.
Preferably, described voltage detecting circuit, by the resistance R1 and the resistance R2 that output voltage are carried out to dividing potential drop, carries out the electric capacity C1 of filtering voltage regulation to partial pressure value; Described resistance R1 and resistance R2 connects, ground connection after electric capacity C2 is in parallel with resistance R2.
Preferably, described current detection circuit adopts triode ON to detect electric current with cut-off.
Compared with prior art, beneficial effect of the present invention is:
A kind of plurality of voltages electric current of the utility model fast monitored device, correctly can not only detect multiple-channel output voltage and the current parameters of power circuit, can also diagnose voluntarily and whether have exception, can avoid causing whole system instability or potential safety hazard because voltage and current testing circuit is abnormal, for the reliability of power circuit provides positive factor, there is extremely strong practical value, can wide popularization and application.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Shown in accompanying drawing 1, a kind of plurality of voltages electric current fast monitored device, comprises voltage detecting circuit, current detection circuit, A/D Acquisition Circuit, MCU and display device; Be connected in series with described A/D Acquisition Circuit after described voltage detecting circuit and current detection circuit are connected in parallel, described MCU is connected to the rear end of A/D Acquisition Circuit, and described display device is connected with described MCU by RS485 interface.By in this device access power wiring systems, voltage and the current parameters of real-time monitoring power electric circuit is carried out by voltage detecting circuit and current detection circuit, MCU include trace routine and by A/D Acquisition Circuit receive voltage detecting circuit, current detection circuit data and it is analyzed, analyze judge data show in real time in display device.
Preferably, described voltage detecting circuit, by the resistance R1 and the resistance R2 that output voltage are carried out to dividing potential drop, carries out the electric capacity C1 of filtering voltage regulation to partial pressure value; Described resistance R1 and resistance R2 connects, ground connection after electric capacity C2 is in parallel with resistance R2.
Preferably, described current detection circuit adopts triode ON to detect electric current with cut-off.
A kind of plurality of voltages electric current of the utility model fast monitored device, correctly can not only detect multiple-channel output voltage and the current parameters of power circuit, can also diagnose voluntarily and whether have exception, can avoid causing whole system instability or potential safety hazard because voltage and current testing circuit is abnormal, for the reliability of power circuit provides positive factor, there is extremely strong practical value, can wide popularization and application.
Claims (3)
1. a plurality of voltages electric current fast monitored device, is characterized in that: comprise voltage detecting circuit, current detection circuit, A/D Acquisition Circuit, MCU and display device; Be connected in series with described A/D Acquisition Circuit after described voltage detecting circuit and current detection circuit are connected in parallel, described MCU is connected to the rear end of A/D Acquisition Circuit, and described display device is connected with described MCU by RS485 interface.
2. a kind of plurality of voltages electric current fast monitored device according to claim 1, is characterized in that: described voltage detecting circuit, by the resistance R1 and the resistance R2 that output voltage are carried out to dividing potential drop, carries out the electric capacity C1 of filtering voltage regulation to partial pressure value; Described resistance R1 and resistance R2 connects, ground connection after electric capacity C2 is in parallel with resistance R2.
3. a kind of plurality of voltages electric current fast monitored device according to claim 1, is characterized in that: described current detection circuit adopts triode ON to detect electric current with cut-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520819734.2U CN204989310U (en) | 2015-10-18 | 2015-10-18 | Quick monitoring devices of multichannel voltage electric current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520819734.2U CN204989310U (en) | 2015-10-18 | 2015-10-18 | Quick monitoring devices of multichannel voltage electric current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204989310U true CN204989310U (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520819734.2U Expired - Fee Related CN204989310U (en) | 2015-10-18 | 2015-10-18 | Quick monitoring devices of multichannel voltage electric current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204989310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974186A (en) * | 2016-06-02 | 2016-09-28 | 中国南方电网有限责任公司超高压输电公司昆明局 | Voltage measuring device |
-
2015
- 2015-10-18 CN CN201520819734.2U patent/CN204989310U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974186A (en) * | 2016-06-02 | 2016-09-28 | 中国南方电网有限责任公司超高压输电公司昆明局 | Voltage measuring device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20181018 |