| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ground device that does not require an antenna for transmitting power supply wave and a power supply section, minimizes the device, and reduces the weight. <P>SOLUTION: This ground device includes a ground-side transmitting/receiving antenna 9 that is disposed along rails 3 on which a train 1 runs and transmits/receives a signal by electromagnetically coupling with a pickup coil 5 of the train 1, an information section 10 for outputting a predetermined information wave signal, a modulating/amplifying section 11 for modulating/amplifying the information wave signal output from the information section 10 and transmitting it to the ground-side transmitting/receiving antenna 9, and a piezoelectric element 13 for generating electric power by vibration of the rails 3 and supplying the electric power to the modulating/amplifying section 11. <P>COPYRIGHT: (C)2012,JPO&INPIT |
