| 摘要 |
<p>PURPOSE:To improve the traveling ground point detecting accuracy by disposing a light emitting unit and a photoreceptor at the prescribed distance interval. CONSTITUTION:When a train 3 passes a ground point on which a traveling reflector 2 is mounted on rails 1, a light from a light emitting unit 4 is reflected on a reflecting plate 2, and received by a photoreceptor 5. Thus, a ground point train detector 7 obtains ground point information through the plate 2. The unit 4 and the photoreceptor 5 are so disposed at the prescribed interval at the prescribed angle to that the unit 4 emits a light at the prescribed angle toward the plate 2 and the light reflected by the plate 2 at the prescribed angle is received by the photoreceptor 5. Thus, only the light reflected on the plate 2 for reflecting the light emitted from the unit 4 is detected by the photoreceptor 5 as ground point information.</p> |
