Information Transmission Machine with Increased Information Volume for Train Control to Overcome Limitations of Frequency-Shift Type Transmission Equipment

Abstract

The frequency-shift type automatic train stop (ATS) equipment is a low-cost train control system and is used widely in domestic local railway. The frequency-shift type transmission equipment possesses special characteristics that are suitable for the location detection function by the onboard equipment, but the volume of information that can be transmitted is limited. Therefore, when developing a new train control system, the lack of volume of information has been often a problem. Here, we developed a new information transmission system that is compatible with existing equipment and increases the volume of information. This equipment achieves more than 10 times of volume of information compared to existing equipment by using the new information transmission method and new type of ground beacon. By using this onboard equipment as a means of location correction, the location of the train can be detected at a low cost. This report describes realization procedure of this equipment and the results of a production test.