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Distribution cable branch box state monitoring system and method

A technology of condition monitoring system and cable branch box, applied in signal transmission system, electrical measurement, short-circuit test, etc., can solve the problem of poor signal penetration performance of short-distance wireless communication technology, short single-hop communication distance, unsuitable for condition monitoring, etc. problem, to solve the problem of power access, low power consumption, and full functions.

Pending Publication Date: 2020-05-05
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Short-distance wireless communication technologies include WLAN, Zigbee, Bluetooth technology, etc., and there are mainly the following problems: 1) The single-hop communication distance of short-distance wireless communication technology is short, and complex networking technologies are required to expand network coverage. In the environment where the monitoring nodes are far away, such as equipment status monitoring, additional relay nodes need to be deployed to expand the network coverage, the communication network is complex, and the reliability is poor; The equipment is usually installed in a metal box, the communication effect is poor, and it is not suitable for condition monitoring in most distribution network environments

Method used

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  • Distribution cable branch box state monitoring system and method
  • Distribution cable branch box state monitoring system and method
  • Distribution cable branch box state monitoring system and method

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Experimental program
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Effect test

Embodiment 1

[0051]The distribution cable branch box status monitoring system provided by the embodiment of the present invention has a unit structure as follows figure 1 shown, including:

[0052] An intelligent monitoring unit, a master station of a distribution network status monitoring system connected to the intelligent monitoring unit through a low-power wide area network; the intelligent monitoring unit is arranged in a cable branch box;

[0053] Among them, the intelligent monitoring unit collects and analyzes the operating status and environmental parameter data of the cable branch box in real time, and reports the alarm information to the main station of the distribution network status monitoring system through the low-power wide area network when an abnormality is found; Alarm information is analyzed and processed.

[0054] Wherein, the intelligent monitoring unit includes: a low power consumption wide area network wireless module; the low power consumption wide area network wi...

Embodiment 2

[0069] The embodiment of the present invention provides a method and system for remote monitoring of the operating status of distribution cable branch boxes based on low-power wide-area network (Low-Power Wide-Area Network, LPWAN) technology in the power 230M frequency band, mainly including three parts: Intelligent monitoring unit, LPWAN network, master station of distribution network status monitoring system.

[0070] figure 1 It is a composition diagram of the intelligent monitoring unit for the status of the cable branch box. The device unit consists of various sensors, signal processing unit, intelligent controller MCU unit, LPWAN wireless module and battery power supply unit.

[0071] The sensor unit mainly includes two types of environment and cable operation status sensing. Environmental sensors such as temperature, humidity, water immersion level sensors, operating status such as power cable joint temperature sensors, current sensors, ground fault sensors, electrica...

Embodiment 3

[0081] Based on the same inventive concept, the present invention also provides a method for monitoring the status of distribution cable branch boxes, the specific implementation process of which is as follows Figure 4 shown, including:

[0082] Step S101: The intelligent monitoring unit acquires the operating status and environmental parameter data of the cable branch box in real time;

[0083] Step S102: The intelligent monitoring unit judges whether the operation state of the cable branch box is abnormal according to the data, and if so, reports an alarm message to the distribution network state monitoring master station through the low power consumption wide area network;

[0084] Step S103: The distribution network state monitoring master station analyzes and processes the alarm information.

[0085] Specifically, in the step S101, the intelligent monitoring unit acquires the operating status and environmental parameter data of the cable branch box in real time, and the...

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Abstract

The invention provides a distribution cable branch box state monitoring system and method. The distribution cable branch box state monitoring system comprises an intelligent monitoring unit arranged in a cable branch box and a distribution network state monitoring system main station connected with the intelligent monitoring unit through a low-power-consumption wide area network. The intelligent monitoring unit collects and analyzes the operation state and the environment parameter data of the cable branch box in real time and reports alarm information to the distribution network state monitoring system main station through the low-power-consumption wide area network when an abnormality is found. The distribution network state monitoring system main station analyzes and processes the alarminformation. According to the technical scheme provided by the invention, the remote monitoring of the operation state of the distribution cable branch box is realized based on the advanced low-power-consumption wide area network technology, and the communication problem restricting the monitoring of the distribution cable branch box in outdoor and basement occasions for a long time is solved.

Description

technical field [0001] The invention relates to the field of state monitoring of electric equipment, in particular to a state monitoring system and method for distribution cable branch boxes. Background technique [0002] The distribution network has the characteristics of wide distribution, many power equipment, and complex operating environment. In order to improve the intelligent monitoring of distribution network equipment and improve the level of automatic operation and maintenance, it is necessary to use advanced Internet of Things technology to realize remote monitoring of equipment operating status. Conventional power optical fiber, wireless, and power carrier communication are limited by communication distance, performance, construction cost, and on-site power supply. At present, only the "three remote" data communication of the secondary automation equipment of the distribution network has been realized, while a large number of power distribution The operating stat...

Claims

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Application Information

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IPC IPC(8): G01D21/02G01R31/52G01R31/12G08C17/02
CPCG01D21/02G01R31/12G01R31/1272G08C17/02
Inventor 李建岐黄毕尧梅林常黄清江张道乾韦磊李明维张传远
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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