| 摘要 |
<p>PROBLEM TO BE SOLVED: To automatically switch a system in a transmitter of a door closing signal operation device by arranging at least two kinds of identification code transmitters for up and down lines of a platform. SOLUTION: If a station staff moves to a platform 21 on a down/B line track 23 side while holding an up/A line transmitter 26 when an operation mode of the up/A line transmitter 26 is switched to an automatic operation mode by means of a mode selector switch, an identification code transmitted from a down/B line identification code transmitter 29 is received by means of a light receiving element in the up/A line transmitter 26' carried by the staff so as to be analyzed in an infrared receiving unit and a controlling unit, and consequently, movement to the platform 21 on the down/B line track 23 side is recognized. Then, an address and a protocol for the up/A line transmitter 26' are changed so as to match a down/B line receiver 25, so that a signal can be transmitted to the down/B line receiver 25.</p> |
