State Grid Hubei Electric Power develops drone mobile nest

State Grid Hubei Electric Power employees conducted autonomous drone inspections of Jinan Substation. Photo by Zeng Yi

"The drone is ready to take off!" On October 17, Wen Haiyan, an employee of the State Grid Jingzhou Power Supply Company, came to the 220 kV Jinan substation and took out the drone from the "little black box" in his hand. The drone received After receiving the inspection route task remotely issued by the intelligent inspection platform, the automatic inspection started. This "little black box", which is only 40 centimeters long and 24 centimeters wide, is a mobile drone nest developed by State Grid Hubei Electric Power Co., Ltd. to improve equipment operation and maintenance efficiency.

The UAV mobile nest is equivalent to the "supply warehouse" of the UAV, which can provide signals for the UAV and remotely control the flight of the UAV through radio waves.

Wen Haiyan introduced that in the past, the fixed drone nests installed in substations had high environmental requirements and were expensive, with one unit costing more than 200,000 yuan, making it difficult to promote. In order to solve the bottleneck problem in the promotion and application of fixed drone nests, State Grid Jingzhou Power Supply Company started a "brainstorm" to develop new equipment. After more than three months, the drone mobile nest was successfully "born" and was officially put into use in October this year. .

As a new type of intelligent equipment, the drone mobile nest is equipped with a battery module, a communication module, and a small intranet RTK positioning module with centimeter-level accuracy, which effectively improves the accuracy and accuracy of drone inspections. The safety risks of traditional manual inspections are greatly reduced.

As a "customized aircraft carrier" for drone flight, the drone mobile nest is also connected to the equipment monitoring center's "middle platform application" full-process visual intranet management and control platform. You only need to issue instructions remotely, and the platform will be called immediately. The drone inspects the route and starts remote drone operation with one click, realizing automated and intelligent drone operation. After the drone starts the automatic inspection flight, it can take all-round, multi-angle, and close-range high-definition photography of the relevant equipment in the substation. The images can be transmitted back in real time and the substation inspection situation can be intelligently analyzed, and the inspection can be automatically generated online. Report. With the assistance of the mobile drone nest, drone inspections have initially replaced routine inspections and infrared temperature measurement inspections. They can automatically focus and capture visible and infrared light photos, effectively avoiding problems that are easily missed in manual inspections.

Wen Haiyan said: "Now the cost of a mobile drone nest is less than 30,000 yuan, and drones can be shared between different substations, which greatly reduces the cost of hardware investment." Moreover, in the past, substation installations The signal range and endurance of the fixed drone nest can only cover 3-5 kilometers around the substation, and the applicable range is limited. Now the mobile drone nest can realize the sharing of drones between substations, and the drone does not need to be returned after returning. Waiting for charging time, replace the battery and it can fly for 2 hours, which improves the efficiency of drone inspection.

In the next step, State Grid Hubei Electric Power will release technical specifications for professional drone inspections and drone operation specifications for substations, and comprehensively build a new substation operation and maintenance inspection model with "UAVs as the mainstay and high-definition videos as the supplement". Realize the intelligent replacement of routine inspections of substations, promote the construction of intelligent inspection main stations in each unit and the upgrade of drone function modules, accelerate the construction of drone nests in various municipal companies, build an all-round three-dimensional inspection system, and further improve drone patrols. Check the level of differentiation, quantification, intelligence and large-scale application. (Wang Ning)

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