摘要:
A ground device 6 includes a control unit 15, a storage unit 16, and a ground transmitting and receiving unit 17. A ground antenna 18 is connected to the ground transmitting and receiving unit 17. Train information from an on-board device 11 is received by the ground transmitting and receiving unit 16 via the ground antenna 18, and is then transmitted to the control unit 15. Meanwhile, information from the control unit 15 is transmitted to the on-board device 11 via the ground transmitting and receiving unit 17 and the on-board antenna 18. The control unit 15 accumulates the train information on a train 4 in the storage unit 16, and also transmits, to the on-board device 11, command information for a device installed in the train 4.