An optical fiber positioning system and positioning method for hidden dangers of leakage in water conservancy projects

Abstract

The invention discloses a hydraulic engineering leakage hidden danger positioning system and positioning method. The system comprises an energy system and a monitoring system. The energy system comprises a mobile device, a T-type connecting platform and carrier platforms. A solar cell panel is arranged on the carrier platform. The solar cell panel is connected with a storage electric appliance. The storage holding electric appliance is connected with a polygonal interface. The monitoring system comprises a turning-connecting control and regulation device, electronic test platforms and temperature control test platforms. The turning-connecting control and regulation device is connected with a through-tube hard tube and a through-tube soft tube which are located above an area to be tested. Control and regulation valves are respectively arranged on the through-tube hard tube and the through-tube soft tube. The through-tube hard tube is connected with water diversion outlets through hydraulic pressure valves. A tail end of the through-tube soft tube is a multi-degree of freedom port. According to the invention, the solar energy is a heat source and electric power source for detecting the leakage, no special requirements on the sensing optical fiber exist, the arrangement is flexible, the movement is convenient, full-time-domain temperature information collection and leakage hidden danger positioning can be realized, and the hydraulic engineering leakage hidden danger positioning system and positioning method have the outstanding advantages that the monitoring cost is reduced, the monitoring precision is increased, the engineering practicality is improved, etc.

Description

technical field [0001] The invention relates to an optical fiber positioning system and a positioning method for hidden dangers of water conservancy project leakage, belonging to the fields of safety monitoring and hidden danger detection of water conservancy projects. Background technique [0002] Leakage is one of the most common hidden dangers in the service of dams, embankments, sluices and other water conservancy projects. Its causes are complex, random, and difficult to monitor. Leakage and various problems derived from it, if not found in time and corresponding rescue measures are taken, it is very likely to cause serious consequences of project collapse. A large number of engineering practices have shown that strengthening the real-time and accurate location of leakage in water conservancy projects is of great significance to ensure the safe and reliable operation of the project. However, at present, the devices, instruments, and technologies used for leak location ...

AI Technical Summary

Problems solved by technology

However, at present, the devices, instruments, and technologies used for leak location mostly rely on point sensors, and the phenomenon of missed detection occurs from time to time, and most of the traditional seepage sensors have shortcomings such as large volume, many leads, and poor affinity.

Distributed optical fiber seepage measurement technology has obvious advantages in avoiding the above phenomena, but it needs artificial heat and electric power equipment, and has special requirements for the sensing optical fiber itself, and is also subject to the characteristics of water conservancy projects such as harsh monitoring environment and difficult layout conditions. It greatly increases the monitoring cost of this technology, seriously affects its monitoring accuracy, and hinders and restricts its practical application.

Images