Use terminal controllers and wireless repeaters to remotely control underwater operating machines. It can complete navigation tasks such as automatic depth determination, orientation, hovering, advance and retreat, heave and turn, etc. It can be equipped with high-definition underwater camera equipment and monitor underwater images in real time through the terminal controller. It can be equipped with underwater manipulators or other professional underwater Operation equipment, instruments and tools are used to perform underwater operation tasks such as underwater security monitoring, small sample collection, search and rescue, and auxiliary rescue.