A UAV-based natural gas pipeline leak detection system

Abstract

The invention relates to a natural gas pipeline leak detection system based on an unmanned aerial vehicle. The natural gas pipeline leak detection system based on the unmanned aerial vehicle is mainly characterized in that an inspection tour can be made on a natural gas pipeline, leak points and the leak diffusion range of the pipeline can be found in time, and loss caused by leak is reduced. According to the technical scheme, the unmanned aerial vehicle is provided with a small cargo compartment, and a natural gas laser detection system is installed in the small cargo compartment. Laser beams emitted by a laser device are divided into two paths, wherein one path is emitted through an emitting antenna, passes through leaking gas and then is reflected, the reflected lasers are received by a receiving antenna, and a first detector receives reflected signals; and the other path perpendicularly enters the soil surface nearby the pipeline, and is received by a second detector after being reflected. The natural gas pipeline leak detection system based on the unmanned aerial vehicle can simultaneously detect the natural gas leak concentration and a soil surface temperature anomaly caused by natural gas leak, thereby achieving the purpose of inspecting natural gas pipeline leak.

Description

technical field [0001] The invention relates to an unmanned aerial vehicle-based natural gas pipeline leakage detection system, which belongs to the technical field of unmanned aerial vehicle remote sensing. Background technique [0002] Most of the inspection work of long-distance natural gas pipelines is in places with relatively harsh environments. Such as deserts, swamps, etc. The traditional method is generally geographic information system plus manual inspection of handheld terminals. However, the pipelines in these areas are widely distributed and the inspection volume is large, resulting in scattered inspection data throughout the year. In addition, the pipeline is in good condition in most cases, and the staff is prone to missed inspections during the patrol inspection, and the work efficiency is not high. In addition, the environment is harsh and accidents are prone to occur. In order to improve work efficiency and reduce risks, the use of drones for pipeline i...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a natural gas pipeline leakage detection system based on unmanned aerial vehicles, which can solve the problem that manual inspection of natural gas pipelines is difficult and the effect is not obvious, and can also overcome the complex image data processing in the remote sensing technology of unmanned aerial vehicles , to achieve the purpose of real-time detection of natural gas pipeline leakage

At the same time, it solves the problem of large-area and long-distance pipeline telemetry of the vehicle-mounted natural gas telemetry detection lidar, and the disadvantage of high cost in the natural gas leakage laser telemetry radar of the mid-infrared band laser.

Images