Cable Temperature Sensing Device Using Segmented Modules
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Solution Overview
Problem
Existing cable temperature monitoring methods face challenges such as ease of installation and maintenance issues, damage susceptibility, high costs, and interference from environmental factors, making them inefficient for real-time and accurate temperature detection in power cables.
Innovation Solution
A cable temperature sensing device comprising multiple temperature sensing modules integrated into the cable, each with an identification number, that measure node temperatures and transmit data to a central temperature reading module for processing and communication, enabling efficient and precise temperature monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a temperature sensing cable is used for temperature measurement, then the cable temperature can be monitored, but the temperature sensing cable is unable to be installed and maintained easily and may be damaged easily
Solution Approach 1:
The patent divides the cable into multiple sections with discrete temperature sensing modules at different positions. Each module independently measures temperature at its location, allowing segmented monitoring without requiring a continuous sensing cable running through the entire cable structure, thus improving installability while maintaining monitoring reliability.
Solution Approach 2:
The patent introduces a temperature sensing module as an intermediary component that bridges the gap between the cable and the monitoring system. This module can be installed on the cable surface and provides temperature data without requiring the cable itself to have sensing capabilities, making installation and maintenance easier while ensuring reliable temperature monitoring.
2Measurement precision
If distributed optical fiber temperature measurement is used, then high precision temperature detection is achieved, but the manufacturing cost and maintenance cost are both high
Solution Approach 1:
The patent employs relatively simple and cost-effective temperature sensing modules instead of expensive distributed optical fiber systems. These modules can be manufactured at lower cost and are easier to maintain or replace, providing a economically viable solution for wide-scale cable temperature monitoring while maintaining adequate measurement precision.
Solution Approach 2:
The patent uses multiple discrete temperature sensing modules that replicate the temperature measurement function at different cable positions, rather than using a single complex distributed optical fiber system. This approach achieves comprehensive temperature monitoring through multiple simple copies, reducing overall system cost while maintaining detection precision.
3Reliability
If infrared sensing temperature measurement is used, then noncontact measurement with good safety is achieved, but the measurement is easily influenced by radiative emissivity of adjacent objects and aerial fog
Solution Approach 1:
The patent extracts the temperature sensing function from the cable interior and places it on the cable surface or in immediate proximity. This allows the use of contact or near-contact sensing methods that are less susceptible to environmental interference like fog and radiative emissivity, while maintaining the safety benefits of remote monitoring through the modular design.
Data Source
AI summary
The present invention discloses a cable temperature sensing device, which consists of a plurality of temperature sensing modules disposed on an identical cable. By such arrangement, the temperature sensing modules are configured to measure a plurality of temperature values from different positions on the cable, and then convert the plurality of temperature values to a cable temperature data through a temperature reading module.