METHOD FOR CONTROLLING MOVING ROUTE OF PURIFICATION SYSTEM USING GPS

PROBLEM TO BE SOLVED: To adapt the moving route of a purification system for a lake of complicated shape. SOLUTION: A position calculation means calculates the position of a purification system in a lake from signals of a position transmitter 6 and a GPS receiver 2, and a propulsion device driving condition calculation means 5 calculates a controlled variable of a control device 7 disposed in the purification system to control the direction of propulsion, from a calculation in a moving direction calculation means 4, and drives the control device, so as to move along a preset moving route. The propulsion direction of the purification system is measured with a magnet and signal is transmitted as magnet information 14 to the moving direction calculation means to smooth the propulsion direction control of the purification system. The shape of the lake and the moving route of the purification system are input from an information input device 10. The input information can be output in a display screen on a display device 9 and stored in an information storage device 8. COPYRIGHT: (C)2007,JPO&INPIT