Nanjing Special Equipment Safety Supervision Inspection and Research Institute (hereinafter referred to as Nanjing Institute of Special Inspection) was established in 1989. It is authorized by the Nanjing Municipal Editorial Committee and the National Special Equipment Safety Supervision Institution, specialized in special equipment inspection of the legal technical organization. It belongs to Nanjing Administration for Market Regulation. NSEI currently has more than 200 employees, among which professional and technical personnel account for more than 89% of the total number. There are 3 "333" high-level personnel training objects in Jiangsu Province, 5 research-level senior engineers and 57 senior engineers.
In recent years, NSEI has continuously strengthened the construction of testing capabilities and technologies research and development in the field of high-end equipment and robots, relying on the establishment of "National Intelligent Measurement and Control Product Quality Supervision and Inspection Center (Jiangsu)". Since 2016, the research and development of the UAV intelligent vision detection system of metal structure for large crane has been started. The software and hardware platform of inverted UAV for the large cranes intelligent detection is developed successfully.It can shoot the key parts of the large crane in various directions and ignore the dead angle of the field, which solves the problem of detecting the parts that are difficult to be reached by personnel. An image processing algorithm of crane structure defects based on deep neural network is proposed to realize automatic recognition of cracks and corrosions. It has obtained 2 patents, applied for 3 patents, registered a software copyright, published more than 10 papers, and mastered the full set of core technologies.
At present, the UAV intelligent vision inspection system has been applied in the inspection and safety assessment of the port cranes, the large amusement facilities, the towers and other structures. It has assisted the inspection personnel to detect the parts that are not easy to reach, and detected the equipment hidden dangers that the enterprise is not easy to find. It provides a strong basis for the daily maintenance and equipment safety management of enterprises and ensures the production safety of enterprises. The technical achievements can be extended to the surface defect detection of large structures in service in complex outdoor environment, such as the wind power equipments, the bridges, the ships, the storage tanks, the multi-storey frame steel structures, etc., which have a broad application prospect.
NSEI is willing to cooperate extensively with all sectors of industry-college-institute to jointly promote the innovation and application of UAV, machine vision, deep learning and intelligent measurement and control technology!