Guangdong Huadian Yangjiang Qingzhou III 500 MW underwater multi-pile offshore wind power project

　　As a high-precision underwater construction positioning measurement project with the deepest water depth, the most complex environment and the largest total installed capacity of fans among the domestic offshore wind power installation projects in the same period, the project successfully realized the installation of high-precision large-scale pile foundation with full underwater precision control and multi-sensor combination for the first time. As the first elevation control and measurement project completed by multi-mode collaborative work such as hydroacoustics and optics, it also adopted the joint control and coordination mechanism of positioning, orientation, attitude, height, wireless transmission, above water, underwater and other devices to ensure the accurate installation of multiple underwater piles, and finally completed successfully. And this project won a national excellent surveying and mapping engineering award, a national utility model patent, a software copyright certificate.