• Necessity of MYUAV DRONE laser methane inspection

The MYUAV DRONE laser methane detector plays an important role in the inspection of natural gas long-distance pipelines. It can measure parameters such as methane gas concentration online, perform leak detection, and ensure the safe operation of pipelines. By using the MYUAV DRONE equipped with a laser methane detector for inspection, it is possible to quickly and accurately detect pipeline leaks, improve inspection efficiency, and save manpower and resources. Meanwhile, MYUAV DRONE inspections can also achieve medium to long-distance pipeline inspections, covering areas that are difficult to reach on the ground and improving inspection coverage.

In addition, the MYUAV DRONE laser methane detector has advantages such as portability, speed, efficiency, and low cost, making it an ideal choice for long-distance pipeline inspection.

• System Overview

By using ground station software for route planning, it is easy to achieve medium and long-distance pipeline inspection operations. During the inspection process, the current inspection status and methane measurement data can be viewed in real time. In case of pipeline leakage, the terminal equipment will automatically alarm and record data (time, coordinates, leakage concentration, on-site photos) for automatic generation of inspection reports in the later stage.

Laser methane telemetry instrument

The LC30 PRO [5G version] product is the 5G version of the LC30 PRO. At present, it can be mounted on DJI M300RTK and M350RTKMYUAV DRONE for use. The methane concentration data collected by sensors can be transmitted to remote control apps or web pages for display through various transmission methods such as 5G module DJI SDK. APP control: Open the Android desktop icon and enter the login interface of the Laser Methane APP. During the inspection process, the MYUAV DRONE status and methane measurement data can be viewed in real time. In case of pipeline leakage, the terminal equipment will automatically alarm and record data (time, coordinates, leakage concentration, on-site photos) for automatic generation of inspection reports in the later stage. Web control: Unified monitoring and management of methane data. Capable of calling maps, switching between 3D/2D/planar views, displaying 3D flight trajectories, displaying color block values, displaying real-time data, marking points and measurements, statistics of abnormal areas, quick positioning, querying historical records, and exporting reports.

Monitoring methods

Detection gas: methane

Detection principle: Laser absorption spectroscopy technology TDLAS

Detection mode: Pan tilt scanning type, with adjustable scanning radius and scanning speed

Swinging angle: 1 °, 2 °, 3 °, 4 °, 5 ° optional

Swinging speed: 1 lap/second, 1.5 lap/second, 2 lap/second

Flying above the pipeline, the three-axis stabilized gimbal maintains the laser irradiation direction perpendicular to the ground. The scanning controller controls the rotation of the gimbal, and the projection of the laser irradiation on the ground is in a spiral shape, sweeping over a certain width (about 3-10m). As a result, the MYUAV DRONE can cover the pipeline range that needs to be inspected in one flight, compensate for flight position errors, and capture leaking air masses that deviate from the pipeline.

•  Inspection process

1. Preparatory work

Before pipeline inspection, MYUAV DRONE needs to prepare for takeoff. The operator controls the takeoff of the MYUAV DRONE through a remote control to ensure stable takeoff.

2. Inspection route planning

The route editing interface allows for the editing and modification of routes. After uploading the route, MYUAV DRONE can perform automatic flight inspections to be updated. For pipeline inspection areas, operators can plan inspection routes in advance to ensure that MYUAV DRONE can fully cover the pipeline area and avoid obstacles and dangerous areas.

3. Testing homework

After the aircraft enters the flight route, laser scanning is performed on the air around the pipeline during the inspection process. A status information box can be displayed at the bottom of the screen, which includes aircraft information, route information, and methane detection information.

Once abnormal data is detected during flight, the location can be marked in color on the map.

4. Data analysis and reporting

During flight, once methane gas leakage exceeding the threshold is detected, MYUAV DRONE will automatically take photos and record relevant information such as current concentration values, number of abnormal data, longitude and latitude coordinates. MYUAV DRONE transmits the collected methane detection data to the ground end, where professionals analyze the data and generate inspection PDF reports, providing important reference for pipeline operation and maintenance.

 Monitoring report cases

Methane data details

Starting time: November 7, 2023 23:00:24

End time: November 7, 2023 23:02:43

Equipment number: Test - Methane

Detection grid size: 30 meters * 30 meters (900 square meters)

Number of detection areas: 140

Detection area size: 126000 square meters

Maximum value of methane data point: 3000.00 ppm, longitude and latitude: xxx, xxx

[Methane] Minimum data point value: 0.00ppm, longitude and latitude: xxx, xxx

Light intensity data details

Starting time: November 7, 2023 23:00:24

End time: November 7, 2023 23:02:43

Equipment number: Test - Methane

Detection grid size: 30 meters * 30 meters (900 square meters)

Number of detection areas: 140

Detection area size: 126000 square meters

[Light intensity] Maximum data point value: 20.00lx, longitude and latitude: xxx, xxx

[Light intensity] Minimum value of data points: 0.00lx, longitude and latitude: xxx, xxx

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MYUAV® TECHNOLOGIES CO.,LTD.

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