| 摘要 |
PROBLEM TO BE SOLVED: To expand a time division multiple access communication method (TDMA) to be applied even to a series of ground devices without inconvenience by meeting the management times of the ground devices without adding a communication line.SOLUTION: In a wireless railway control system 30+40 including an on-train device 30 mounted on a train 12 traveling on a track 11 to transmit train information wirelessly, and a plurality of ground devices 40, 40, ... installed scatteredly along the track 11 to acquire the train information from the on-train device 30 by wireless transmission of a time division multiple access communication method, the ground devices 40 includes a GPS receiver (44), and a time information extraction calibration part (45) for acquiring time information from the reception signal to calibrate transmission timing of wireless transmission, and time-divides to perform wireless transmission with near ground devices 40, 40, ... including an adjacent ground device 40 with time division.SELECTED DRAWING: Figure 1 |
