| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a train radio system configured to be able to easily determine an abnormality occurrence position in which a reduction in the reception electric field level of an induction conductive wire occurs, discriminating from a long-term deterioration. <P>SOLUTION: There are provided in an on-vehicle station device a reception electric level detection part 5 for detecting a reception electric field level; a level observation method processing part 8 for acquiring the reception electric field level, positional information and time information when the reception electric field level detected by the reception electric field level detection part 5 in a prescribed time interval has become equal to or less than a determination threshold; a fixed-point observation method processing part 9 for acquiring a level grade division of the reception electric field level detected by the reception electric field level detection part 5 and the positional information, at a plurality of observation points set in an induction conductive wire; and an observation result storage part 10 for storing results acquired in the level observation method processing part 8 and the fixed-point observation method processing part 9. <P>COPYRIGHT: (C)2013,JPO&INPIT |
