Temperature-sensing optical fiber testing system based on Internet of Things and use method of temperature-sensing optical fiber testing system

Abstract

The invention relates to a temperature sensing optical fiber test system based on Internet of Things, which comprises at least one detection terminal, a detection lead and an Internet of Things controller. The at least one detection terminal is electrically connected with the Internet of Things controller through the detection lead, and the detection terminals are connected in parallel; the detection terminals are in data connection with the Internet of Things controller through a wireless communication network, and each detection terminal comprises a guide strip, a connecting clamp, a bearing groove, an elastic piece, a temperature sensor, an electric heating wire, a driving circuit and an Internet of Things communication device. A use method comprises the three steps of system prefabrication, detection positioning and temperature measurement operation. According to the invention, on one hand, the requirements of detection operation of temperature measurement optical fibers of different types of power cables can be effectively met, and the environment adaptability is good; and on the other hand, the detection precision is high, the detection operation is flexible and convenient, and the precision and reliability of the power cable temperature measurement operation are greatly improved.

Description

technical field [0001] The invention relates to a temperature-sensing optical fiber testing system based on the Internet of Things and a method for using the same, belonging to the technical field of electric equipment. Background technique [0002] Now the voltage level of power cables is getting higher and higher, and more and more cables are laid. More and more cable tunnels are being built. Urban cable tunnels are laid into various power cables, which are the arteries of urban power supply and the source of urban vitality. The hidden danger of power cable fire is becoming more and more serious due to the increase of power load. In order to avoid fire accidents caused by high temperature of power cable, the fire monitoring of power cable is particularly important. Therefore, the power cables are all equipped with temperature-sensing optical fibers, but whether the temperature-sensing optical fibers work normally, whether the temperature-sensing optical fibers will alarm ...

AI Technical Summary

Problems solved by technology

Therefore, the power cables are all equipped with temperature-sensing optical fibers, but whether the temperature-sensing optical fibers work normally, whether the temperature-sensing optical fibers will alarm when the temperature of the power cable rises to the fire alarm value, in engineering practice, some of the temperature-sensing optical fibers are placed in boiling water for testing. In this way, the hot water cools down quickly, and the water temperature needs to be heated repeatedly. When the alarm value of the temperature-sensing optical fiber is set above 100°C, it is impossible to test, leaving a potential safety hazard.

[0003] In response to this phenomenon, although related equipment and technologies for temperature-sensitive optical fiber detection have also been developed, such as "a portable optical fiber heating test device and method" with the patent application number "2016111740795", and the patent application number "2019207600122 "Portable cable temperature-sensing optical fiber detection device" and so on. Although these devices or technologies can meet the needs of temperature-sensing optical fiber operation fault detection and testing operations to a certain extent, on the one hand, the system structure is complex, and the operation flexibility and practicability are universal. Poor performance, easily affected by factors such as the site of use and the structure of the power cable, and cannot be used; The temperature measurement accuracy and other parameters of the temperature fiber are more accurately detected, so the current detection equipment still cannot effectively meet the needs of actual use.

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