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Low-voltage power line carrier communication effect test module

A low-voltage power line and carrier communication technology, which is applied in the direction of line transmission monitoring/testing, line transmission components, etc., can solve the problems of lack of low-voltage power line carrier channel models, etc., and achieve the effect of reasonable structural design

Active Publication Date: 2014-11-19
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problem of lack of low-voltage power line carrier channel model at present, and provides a low-voltage power line carrier communication impact test module

Method used

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  • Low-voltage power line carrier communication effect test module
  • Low-voltage power line carrier communication effect test module
  • Low-voltage power line carrier communication effect test module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The low-voltage power line carrier communication influence test module includes a control computer PC, a control MCU circuit 1 connected to the control computer, a signal drive circuit 2, a relay control circuit 3, a carrier influence load switching circuit), and a load switching indication circuit 5;

[0024] Described MCU circuit 1 comprises STM32F103 chip, and the input terminal of this chip is connected with control computer; Send the instruction of PC test software to STM32F103 chip by control computer, and STM32F103 chip is written with the program that judges the instruction of PC software; When concrete implementation , the STM32F103 chip needs to be configured with corresponding peripheral circuits, and the configuration of the peripheral circuits is well known or easily realized by those skilled in the art;

[0025] The signal driving circuit 2 is formed by connecting the photocoupler EL817, the serial input / parallel high-speed converter 4094 and the driver chi...

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PUM

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Abstract

The invention relates to a test module for a carrier communication network test, specifically to a low-voltage power line carrier communication effect test module. The problem of lacking in low-voltage power line carrier channel models exists at present. The low-voltage power line carrier communication effect test module includes a control computer, a control MCU circuit connected to the control computer, a signal drive circuit connected to the control MCU circuit, a relay control circuit connected to the signal drive circuit, a carrier effect load switching circuit controlled by the relay control circuit, and a load switching indication circuit. According to the invention, the impedance characteristic hardware simulation of a carrier communication line is achieved based on low-voltage power distribution line network characteristics; the length, load impedance, inductive characteristics and capacitive characteristics of the carrier communication line can be separately simulated; and the low-voltage power line carrier communication effect test module is reasonable, novel and unique in structural design, and provides a basis for in-depth study of low-voltage power line carriers and simulation of field communication performance tests.

Description

technical field [0001] The invention relates to a carrier communication network test module, in particular to a low-voltage power line carrier communication impact test module. Background technique [0002] Low-voltage power line carrier communication has become the most widely-covered low-voltage distribution network communication method and an important means of local communication in smart grid construction due to its firm and reliable low-voltage power line communication lines and no need for additional investment in the construction of communication lines. Carrier communication between end devices such as energy meters and concentrators. However, since the low-voltage distribution network is open to all low-voltage users, loads with different impedance characteristics in the line are switched in and out at any time. The lines are generally tree-like radial structures, and the network structure is complex and diverse, which makes it difficult to match the impedance of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/46
Inventor 白志霞吴文丽张建民程昱舒贾颖姚俊峰张鑫刘馨卉郭劲汝曹英
Owner STATE GRID CORP OF CHINA
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