| 摘要 |
PURPOSE:To eliminate wiring work and prevent mis-operation by operating the remote-controller at a driver's seat to suppress the operation of a marker device with optical signal and return the operation results to the remote- controller with optical signal. CONSTITUTION:A remote-controller 6 is installed detachably on an operator's seat, and an optical transmitter/receiver 7 is installed at the deck of a vehicle 1 to make optical communication freely between the remote-controller 6 and the transmitter/receiver 7 through a window at the rear of the operator's seat. Next the remote-controller 6 is operated at the driver's seat to control the vertical movement of the display boards 3 and 4 and change of sign belt by the transmitter/receiver 7. Then the transmitter/receiver 7 which receives optical signal from the remote-controller 6 confirms the positions of the sign belt and display boards 3 and 4, and then returns the confirmed signal to the remote controller 6 through optical signal to inform the completion of control. In addition, as required, the remote-controller 6 is dismounted from the driver's seat, and controlled from the outside of the vehicle. Thus wiring work can be eliminated to set easily, and also the control condition can be confirmed on the remote- controller side to control it without mis-operation. |
