To provide a position detection system accurately detecting the current position using a simple sensor without being restricted by positional information up to the current position and the traveling direction.
A magnetic area 13 is formed where 24 magnetic substances M are arranged on the floor surface in a predetermined pattern with a binary maximum length linearly recurring sequence corresponding to the number of magnetic sensors 5-8 of a forklift 1 is arranged on a two-dimensional plane. When a machine stand 2 of the forklift 1 is stopped in front of the load mounting position S1 so that a load W is positioned just above the load mounting position S1 and the load W is mounted at the load mounting position S1, the polarizations of magnetic substances M in the magnetic area 13 on the floor surface detected by each of four magnetic sensors 5-8 arranged on the bottom of the machine stand 2 are read, and the position of the sensor arrangement pattern corresponding to the combination of the polarizations is read. Thus, the position of the machine stand 2 of the forklift 1 and the mounting position of the load W are obtained.
COPYRIGHT: (C)2008,JPO&INPIT
| WO2001006905 | ROBOTIC SYSTEM |
| WO/2020/203968 | CONTROL UNIT |
| JP7244526A | ||||
| JP1302408A | ||||
| JP3216709A | ||||
| JP5126529A | ||||
| JP3219308A |
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order