Natural gas pipeline leak detection system based on unmanned aerial vehicle

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 involves a natural gas pipeline leak detection system based on drones, which belongs to the field of drone remote sensing technology. Background technique [0002] Most of the inspections of natural gas long -distance pipelines are in a relatively harsh environment.Such as desert, swamps, etc.The traditional method is generally a geographical information system plus hand -held artificial inspection.However, the scope of pipelines in these areas and large inspections have led to scattered inspection data throughout the year.In addition, in most cases, the pipeline is in a good state, and the inspection of staff is prone to missed inspection, and the work efficiency is not high.There are also harsh environment and prone to accidents.In order to improve work efficiency and reduce risks, the use of drones for pipeline inspections can achieve more effort. [0003] In the field of drone remote sensing technology, the most commonly used is drone remo...

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.

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