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485 conversion carrier wave meter reading device and meter reading method

A technology of carrier wave meter reading and power carrier wave, which is applied in the field of 485 rpm carrier wave meter reading device and meter reading, can solve the problems of huge economic investment, unsatisfactory reliability, and increased maintenance work, so as to achieve reliable communication and reduce operation and maintenance. Workload and the effect of reducing equipment investment

Inactive Publication Date: 2014-06-04
STATE GRID CORP OF CHINA +3
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The above two methods not only have huge economic investment, but also increase a lot of maintenance work, and the reliability often does not meet the requirements

Method used

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  • 485 conversion carrier wave meter reading device and meter reading method
  • 485 conversion carrier wave meter reading device and meter reading method
  • 485 conversion carrier wave meter reading device and meter reading method

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Embodiment Construction

[0024] The present invention will be further described below through specific embodiments.

[0025] refer to figure 1 As shown, a 485-rpm carrier meter reading device is connected between the load management terminal and the data acquisition terminal through a low-voltage carrier line, including RS485 interface 1, PLCI38 chip 2, MUC micro-control unit 3, infrared interface 4 and indicator light 5 , the above-mentioned RS485 interface 1, PLCI38 chip 2, MUC micro-control unit 3, infrared interface 4 and indicator light 5 are fully sealed;

[0026] RS485 interface 1 is used to receive the meter reading instruction data message sent by the load management terminal, and feed back the power data information converted by the MUC micro-control unit 3 to the load management terminal. Voltage resistance, while ESD protection beyond the bus terminal (+30kV contact discharge; +15kV air gap discharge; +15 human body model), can withstand peak overvoltage transients of 400W, and the data t...

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PUM

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Abstract

The invention relates to a 485 conversion carrier wave meter reading device and a meter reading method; the 485 conversion carrier wave meter reading device is connected between a load management terminal and a data acquisition end, and comprises a RS485 interface, a PLCI38 chip, and a MUC micro-control unit; the meter reading method comprises the 485 conversion carrier wave meter reading device, a data acquisition device with carrier wave function, and the load management terminal; the 485 conversion carrier wave meter reading device and the data acquisition device are connected through a low voltage power line; the beneficial effects are that equipment investment is reduced; compared with the investment of arranging the load management terminal, the investment of arranging the 485 conversion carrier wave meter reading device is only one tenth, and GPRS / CDMA wireless channel cost needs not to be paid; mounting mode is simple and fast; operation workload is reduced; the 485 conversion carrier wave meter reading device is simple in hardware, stable in transmission, reliable in communication, thereby reducing mass operation work.

Description

technical field [0001] The invention relates to a 485-transfer carrier meter reading device and a meter reading method. The 485-transfer carrier-wave meter reading device is a protocol converter for RS485-carrier conversion, and is especially suitable for electric power enterprises to distribute and install electric energy sources with RS485 communication interfaces. Acquisition of meter electric energy information. Background technique [0002] At present, power companies are vigorously promoting the construction of power consumption information collection systems, promoting the installation of smart meters, power collectors or concentrators based on power carrier communication in public distribution stations, and realizing automatic meter reading of power metering devices. However, for high-voltage transformer users with sub-meters and power supply meters, at present, the main meters, sub-meters, and power-transfer energy meters mainly use meters without carrier communicat...

Claims

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Application Information

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IPC IPC(8): G08C19/00G08C23/04
Inventor 苏实义傅少荣王成楷杨子钦
Owner STATE GRID CORP OF CHINA
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