| 摘要 |
PURPOSE:To attain an assured and highly efficient drive of a truck by changing the drive state of the truck in response to the relative positional relation between the truck and an obstacle. CONSTITUTION:A self-traveling type truck 1 is provided with the 1st level sensor 4 which always monitors the area within a prescribed range shown by a dotted line and produces the voltage proportional to an area ratio occupied by an obstacle within said range, the 2nd level sensor 5 which produces the voltage proportional to a square of the pressure produced by the contacts between four corners of the truck 1 and the both sides of an arm, and the 3rd level sensor 6 which produces the stepped voltage by a fixed level of pressure generated at the side face of the truck 1. The characteristics of both sensors 4 and 5 are put together and standardized with a decision standard parameter. Then a microcomputer put on the truck 1 decides a reset method for the right/left shunt to the traveling direction of the truck, the move-back the stop, etc. from the outputs of sensors 4 and 5 when the truck 1 has a contact with the obstacle. Thus the drive state of the truck 1 is changed and also this change is informed to an operator by means of the light and a sound. |
