| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve a device pertaining to detection of a train position for detecting a stop position of a train at a low cost in each aspect of purchase, installation and operation.SOLUTION: A track antenna beacon 30 is equipped with ground receiving antennae 32a to 32c for receiving a power wave from an on-vehicle device and determining each of a short position, a just position and an over position as a train position. The ground receiving antennae 32a to 32c are connected to input side primary coils of corresponding matching transformers 52a to 52c, respectively. Respective output side secondary coils of the matching transformers 52a to 52c are connected via response characteristics adjusting parts 58a to 58c to a position determination part 60 which determines the train position (shot/just/over) on the basis of a reception level of each of the ground receiving antennae 32a to 32c, and generated electric power of output side third coils is connected to a power source part 90 which generates an operation power source of the track antenna beacon 30.</p> |
