| 摘要 |
PURPOSE: To obtain a vehicle optical communication control system capable of communicating with another terminal control part even when an optical cable for any one of terminal control parts is disconnected or a connector is disangaged. CONSTITUTION: Plural terminal control parts 20, 30 are connected to a center control part 1 through optical cables and a main MPU 3 in the control part 1 transmits 1st transmitting data from plural optical communication interfaces 5, 7 to the control parts 20, 30 through optical cables 41 to 47. The control parts 20, 30 respectively allow transistors(TRs) 52, 54 to supply Vcc to internal optical communication interfaces 22, 32 when communication is not executed, and when received data specifies the other station, the supply of the Vcc from the TR 52 or 54 is stopped after the lapse of fixed time. When its own station is specified, received data are returned from the interface 22 or 32 to the control part 1 through corresponding cables 41 to 47 after the lapse of fixed time and the control part 1 finds out OR operation between outputs from both interfaces 5, 7 and then outputs the OR result to the MPU 3. |
