| 摘要 |
PURPOSE:To secure the automatic guidance broadcast regardless of the schedule information given from the CPU by installing the fault detector to detect the fault of the processor and the manual change-over switch to deliver the contact signal by the manual operation. CONSTITUTION:Processor 10 is installed at each station, and the schedule information is transmitted to processor 10 from the CPU via data transmission unit 11. Thus the train information is transmitted to the passangers on the station platform based on the schedule information from processor 10 of each station via sound source unit 12. And fault detector 17 and manual change-over switch 19 are provided to station guidance automatic broadcast device of such constitution. Then change-over relay 18 is operated by the output signal of detector 17 or switch 19, and broadcast sentence designation line 22 led from unit 12 is opened to designate the prescribed broadcast sentence. At the same time, start signal generator circuit 16 is operated by the output signal of approximate relay 13, and the simple guidance information is broadcasted via unit 12 regardless of processor 10. |
