A few days ago, the State Grid’s first set of power line inspection system based on 5g + Beidou UAV has completed research and development, joint commissioning and flight test in Qingdao power supply company, marking another important application of 5g, Beidou and other new technologies in the power grid.

Since August 2019, State Grid Qingdao power supply company, together with China Telecom and Huawei, has carried out close cooperation in transmission, distribution and transformation, established 5g application joint innovation laboratory, jointly promoted the commercial application of 5g power innovation, and successfully built the first large-scale 5g + smart grid experimental network in China, covering Laoshan, Shinan, west coast and other regions in Qingdao, It has successively made a series of achievements in 5g distribution network intelligent distributed FA commercial pilot, 5g + precise load control and other innovative applications, and the relevant achievements have won many awards at home and abroad. As the only industrial energy case, it has been selected into the 5g independent networking driver application case set of the global Mobile Communication Association. In June 2020, State Grid Qingdao power supply company took the lead in signing the world’s first 5g + smart grid business contract with China Telecom. In addition, in August 2019, Qingdao company took the lead in building the first power Beidou foundation enhancement station in China in the 110kV gujia substation, and led the province to complete the construction of 39 base stations in Qingdao mode, becoming the first province in the State Grid system to complete the full coverage of Beidou foundation enhancement station.

In recent years, in order to reduce the work intensity of transmission line inspection, UAV line inspection mode began to be popularized on a large scale. With the gradual implementation of this mode, some problems have gradually emerged: first, the flight is “difficult to operate”. If inspectors want to take a clear picture of the details, they need to take a close shot of the tower and the line. Improper operation is easy to cause a crash or touch the line, which will affect the safety and quality of flight inspection; Second, it is difficult to return data. The images captured by UAV inspection are stored on the memory card by default. After completing the flight mission, the memory card is taken out and imported into the computer for analysis and processing. The image can not be returned in real time, which seriously restricts the timeliness of defect detection. If there is the risk of power information leakage through the public network transmission, the channel of data security transmission needs to be solved; Image analysis is difficult. The inspection pictures taken by UAV need to be manually classified, and then enlarged one by one to check the defects, label and name. This series of image analysis and processing process takes up a lot of time, which restricts the improvement of UAV inspection comprehensive efficiency.

To solve the above problems, State Grid Qingdao power supply company integrates 5g slicing network and power Beidou foundation enhancement system to tap the potential of image defect intelligent analysis, expand the application of “5g +” and “Beidou +” industrial Internet, and form a complete set of intelligent inspection scheme, such as UAV independent inspection, image real-time 5g transmission, defect intelligent identification and data automatic analysis, Greatly improve the efficiency and intelligent level of line inspection, and promote the application of Beidou, 5g and other grid technologies.

Aiming at the problem of “difficult flight operation”, State Grid Qingdao power supply company proposed an autonomous inspection scheme of UAV Based on Beidou system. Through Beidou intelligent space-time service with centimeter level accuracy and 3D laser point cloud data, the UAV inspection line can be planned independently, started with one key, and the inspection task can be automatically completed and returned. The intermediate process does not need manual intervention; In order to solve the problem of “difficult data transmission”, 5g power slicing network is used for real-time transmission. A UAV intelligent inspection terminal – “green Falcon”, which supports 5gsa network, is developed. It is mounted on the UAV, reads the fuselage pictures and high-definition video in real time, and remotely transmits them to the UAV inspection control platform through 5g slicing network. It can monitor the UAV inspection status, the first view video, the first view video, and the second view video in real time Inspection photos and other information; Aiming at the problem of “difficult image analysis”, the industry-leading image recognition algorithm is used to build an artificial intelligence recognition platform to realize the automatic diagnosis and analysis of images after inspection, and generate inspection report to be sent to the transmission inspection personnel to provide auxiliary decision-making for UAV inspection.

5g + Beidou UAV power line inspection system of State Grid Qingdao power supply company innovatively applies 5g technology and self-developed domestic chips, Beidou and artificial intelligence technology to the UAV power line inspection, solves the problems of “difficult operation”, “difficult return”, “difficult analysis” of UAV power line inspection, and realizes the real-time supervision and control from the early line planning and operation process After the operation, the picture recognition and defect summary are reported, and the whole process of line inspection is digitalized and networked. Make the process and result of line inspection controllable, searchable and traceable. It can reduce the workload of in-house and field personnel, and improve the work efficiency and quality. Massive inspection data also provides a strong basic data support for future data mining and image comparison.

China Telecom and Huawei jointly plan 5g private network related product technology and actively explore innovation. Through joint in-depth analysis of typical industry needs and application scenarios including electric power, China Telecom launched three modes of 5g public network dedicated services, namely “Ruyi, Bilin and Zhiyuan”, and continuously pilot, verify and optimize based on Innovative Project practice. In the State Grid Qingdao 5g + smart grid experimental network project, the three parties adopted the “wing like mode” 5g private network, providing end-to-end 5gsa sliced network at the network level, and combining 5gmec’s ubiquitous connectivity and ultra performance heterogeneous computing capabilities at the edge level, providing the differentiated and deterministic extreme network experience required by the strict safety production of the power industry.

Next, the State Grid Qingdao power supply company will continue to optimize the 5g + Beidou UAV power line inspection system, continue to strengthen cross professional and cross departmental cooperation and special tackling, promote the deep integration of industry and research, explore more pilot 5g application scenarios on the premise of ensuring equipment safety, personal safety and data safety, and form a number of application solutions that can be implemented and promoted, Promote the commercialization process of 5g + smart grid.

Editor in charge: GT

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