CN104319880A - Low-pressure protecting and monitoring device - Google Patents
Low-pressure protecting and monitoring device Download PDFInfo
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- CN104319880A CN104319880A CN201410537096.5A CN201410537096A CN104319880A CN 104319880 A CN104319880 A CN 104319880A CN 201410537096 A CN201410537096 A CN 201410537096A CN 104319880 A CN104319880 A CN 104319880A
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Abstract
The utility model discloses a low-pressure protecting and monitoring device and belongs to the field of monitoring devices. The low-pressure protecting and monitoring device comprises an alternating current analog input module, a digital input module, a digital output module, a key, a display module, a communication module and a microcontroller module. The low-pressure protecting and monitoring device is characterized in that the alternating current analog input module, the digital input module, the digital output module, the key, the display module and the communication module are electrically connected with the microcontroller module; the alternating current analog input module comprises a voltage transformer, a current transformer, a signal processing circuit and an analog to digital converting circuit which are connected with the microcontroller module after mutually connection. The low-pressure protecting and monitoring device effectively reduces the integral power consumption due to reasonable optimization of a hardware structure, improves the interior data exchanging efficiency and the software development flexibility, improves the reliability and the expandability, meanwhile has functions of flexibly protecting function configuration and outlet configuration, simplifies management and utilization of a set value and is convenient to use and maintain.
Description
Technical field
The invention belongs to measure and control device field, particularly relate to a kind of low-voltage variation measure and control device.
Background technology
Along with the development of science and technology; the application of intelligence science and technology in life is increasing; simultaneously with the improving constantly of automaticity of electric power system; measurement and Control Equipment for Relay Protection digitlization, intelligentized trend are day by day obvious, and have the features such as functional diversities, communication interface abundantization, high reliability and high performance index.At present; the hardware platform of conventional low protection supervisory equipment uses the multi-CPU structure of ARM+DSP+FPGA mostly; this structure can ensure the real-time of exchanges data and the reliability of defencive function, but there is the problem of the aspects such as data sharing, equipment interval expansion, clock signal synchronization, power consumption height.
Summary of the invention
The present invention is intended to solve the problem, and provides a kind of reliable and practical low-voltage variation measure and control device.
Low-voltage variation measure and control device of the present invention, comprise ac analog input module, digital quantity input module, digital output module, button and display module, communication module, micro controller module, it is characterized in that described ac analog input module, digital quantity input module, digital output module, button are all electrically connected with micro controller module with communication module mutually with display module; Ac analog input module comprises voltage transformer, current transformer, signal conditioning circuit and A/D change-over circuit, is connected after being connected according to this with micro controller module.
Low-voltage variation measure and control device of the present invention, that it is characterized in that described microcontroller adopts is OMAP5910, is wherein built-in with dsp processor and arm processor.
Low-voltage variation measure and control device of the present invention, that it is characterized in that the A/D conversion chip arranged in described A/D change-over circuit is TLC3578, and operating voltage is the digital power of 3V ~ 5V.
Low-voltage variation measure and control device of the present invention, is characterized in that described current transformer is the linear current instrument transformer of 5A/3.53V.
Low-voltage variation measure and control device of the present invention, is characterized in that described communication module is provided with two-way 10/100Mbit/s fiber optic Ethernet mouth and two-way RS485 interface.
Low-voltage variation measure and control device of the present invention, is characterized in that the Ethernet interface of described communication module adopts the controller of 10Mbit/s.
Low-voltage variation measure and control device of the present invention, by the rationalization optimization to hardware configuration, reduces to effect the overall power of device, improves the efficiency of device internal exchange of data and the flexibility of software development, improve reliability and the extensibility of device.Meanwhile, device has defencive function configuration flexibly and protection exit configuration feature, simplifies the management and of protection set point, easy to use and maintenance.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
Embodiment
Low-voltage variation measure and control device of the present invention, comprise ac analog input module, digital quantity input module, digital output module, button and display module, communication module, micro controller module, described ac analog input module, digital quantity input module, digital output module, button are all electrically connected with micro controller module with communication module mutually with display module; Ac analog input module comprises voltage transformer, current transformer, signal conditioning circuit and A/D change-over circuit, is connected after being connected according to this with micro controller module.
Low-voltage variation measure and control device of the present invention, that described microcontroller adopts is OMAP5910, is wherein built-in with dsp processor and arm processor.The A/D conversion chip arranged in described A/D change-over circuit for TLC3578, operating voltage is the digital power of 3V ~ 5V, can by the digital signal of microcontroller process for being converted to by AC analogue signal; Digital quantity input module, for gathering the regular tap amount signals such as on-load switch position signalling, low-voltage circuit breaker position signalling, fuse blows signal, can also gather the non-electric charge quantity signallings such as grave gas action tripping operation, light gas action alarm; Digital output module is mainly used in the function such as outlet tripping operation, signal alarm of various protective device; Button and display module are mainly used in man-machine interaction; Communication module is used for communicating with Surveillance center with other smart machine.Described current transformer is the linear current instrument transformer of 5A/3.53V.Described communication module is provided with two-way 10/100Mbit/s fiber optic Ethernet mouth and two-way RS485 interface.The Ethernet interface of described communication module adopts the controller of 10Mbit/s.
Claims (6)
1. low-voltage variation measure and control device, comprise ac analog input module, digital quantity input module, digital output module, button and display module, communication module, micro controller module, it is characterized in that described ac analog input module, digital quantity input module, digital output module, button are all electrically connected with micro controller module with communication module mutually with display module; Ac analog input module comprises voltage transformer, current transformer, signal conditioning circuit and A/D change-over circuit, is connected after being connected according to this with micro controller module.
2. low-voltage variation measure and control device as claimed in claim 1, that it is characterized in that described microcontroller adopts is OMAP5910, is wherein built-in with dsp processor and arm processor.
3. low-voltage variation measure and control device as claimed in claim 1, that it is characterized in that the A/D conversion chip arranged in described A/D change-over circuit is TLC3578, and operating voltage is the digital power of 3V ~ 5V.
4. low-voltage variation measure and control device as claimed in claim 1, is characterized in that described current transformer is the linear current instrument transformer of 5A/3.53V.
5. low-voltage variation measure and control device as claimed in claim 1, is characterized in that described communication module is provided with two-way 10/100Mbit/s fiber optic Ethernet mouth and two-way RS485 interface.
6. the low-voltage variation measure and control device as described in claim 1 or 5, is characterized in that the Ethernet interface of described communication module adopts the controller of 10Mbit/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537096.5A CN104319880A (en) | 2014-10-13 | 2014-10-13 | Low-pressure protecting and monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537096.5A CN104319880A (en) | 2014-10-13 | 2014-10-13 | Low-pressure protecting and monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104319880A true CN104319880A (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410537096.5A Pending CN104319880A (en) | 2014-10-13 | 2014-10-13 | Low-pressure protecting and monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104319880A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950891A (en) * | 2017-05-03 | 2017-07-14 | 浙江蒙越电力科技有限公司 | A kind of box type transformer intelligent measuring and control device and its control system |
-
2014
- 2014-10-13 CN CN201410537096.5A patent/CN104319880A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950891A (en) * | 2017-05-03 | 2017-07-14 | 浙江蒙越电力科技有限公司 | A kind of box type transformer intelligent measuring and control device and its control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |
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| WD01 | Invention patent application deemed withdrawn after publication |