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On July 21, 2021, the "Zhiyuan" intelligent CSD designed by Shanghai Hansail  for the national engineering reserch center dredging was successfully launched in Shanghai Caozhen Shipyard, Hansail General Manager Sun Qingsong and Chief Engineer Shao Min attended the launching ceremony.

The total length of the Zhiyuan is about 29.9m, the width is 7.3m, the diameter of the suction and discharge pipe is 300mm, and the maximum dredging depth is 6m. Its main working mode is unmanned operation in the ship's cab, remote remote dredging operations at the shore end, fully automatic control function of "one-key dredging", and operation in inland river B-level navigation areas.