| 摘要 |
PURPOSE: To predict the passing time of a train without mistaking a judgment from a train diagram by installing a train passing predictive data display means which displays a passing predictive time being nearest to the present time out of passing predictive times of respective trains of train discriminating data together with this passing predictive data. CONSTITUTION: An IC card 1 is connected to a connection means 17, whereby a central processing unit 11 reads the contents of this IC card 1. A communication interface 18 performs an input-output control over serial data with the outside part. The CPU 11 outputs a signal for alarm sound generation to an alarm sound output adapter 4 via this communication interface 18. This alarm sound output adaptor 4 amplifies the inputted serial signal, emitting an alarm sound from an earphone 5. A communication adapter 9 has a built-in modem (modulator-demodulator), performing sending/receiving control over the data via a communication line. The CPU 11 sends and receives the data with a host unit to be connected to the communication line via this communication adapter. |
