A temperature monitoring system for monitoring cable joints

CN115435926BActive Publication Date: 2026-03-13HUANENG (ZHEJIANG) ENERGY DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-18
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing technologies cannot achieve real-time and accurate temperature monitoring of cable joints, especially in situations where cables are distributed haphazardly and space is limited, making it difficult to effectively prevent fires caused by high temperatures.

Method used

By using a temperature detection device combined with a cable joint location relationship table and temperature effect reduction rules, the temperature value of the adjacent cable joint is obtained for correction. Combined with current detection and a current-temperature comparison table, accurate temperature judgment of the cable joint is achieved.

Benefits of technology

It enables real-time and accurate temperature monitoring of cable joints, allowing for timely detection of loose connections and oxidation issues, thus improving fire prevention capabilities.

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Abstract

A temperature monitoring system for monitoring cable joints includes a temperature detection device for detecting the temperature of the cable joints. The system has a preset cable joint location relationship table and a temperature impact reduction rule. The cable joint location relationship table determines the location of the cable joints and their relative positions. The system acquires a first temperature value of the cable joint under test and, based on the cable joint location relationship table, identifies adjacent cable joints near the cable joint under test. It then acquires a second temperature value of the adjacent cable joint and, according to the temperature impact reduction rule, subtracts the first temperature value to obtain a third temperature value. If the third temperature value is higher than a preset threshold, the temperature of the cable joint under test is determined to be abnormal. This system has the advantages of high detection accuracy and real-time monitoring capabilities.
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Citation Information

Patent Citations

  • Temperature measurement correction using multiple temperature sensors

    CN103261862A

  • Cable joint monitoring method

    CN113341276A