The new train control system for local lines, JR East, will be introduced ... Using satellites and mobile phone communication networks

JR East announced on September 3 that it will introduce a train control system for local lines that utilize the positioning satellite system and mobile phone radio in FY2024.

This system knows the location of the train using the "GNSS = Global Navigation Satellite System), which is a position positioning system that uses quasi -top satellites such as GPS satellites and" Michibiki ", is grasped.It uses a mobile phone communication network to transmit information between the car and the ground, and controls railroad crossings and speed control.

Conventional railroad crossings use a device that detects the enrollment of a train called a "railroad crossing control" provided on orbit, and when this device detects the passing of the train, a railroad crossing or blocking it through a cable.It is a mechanism that operates the vessel, and the "special signal emitting machine" that notifies the crew to the crew with red flashing.

In this method, a large amount of cables were required, so it was inevitable to enlarge the ground equipment, but the introduction of a new system can be increased by the introduction of the new system, and the braking control in the case of a railroad crossing can be automated.It is said that it will also lead to a cost reduction in terms of cost.

In JR East, this new system test will be conducted between Takasaki and Komagawa on the Takasaki Line and Hachiko Line from September to January 2021.Initially, railroad crossing controls are conducted, and speed control tests are scheduled for 2021.

As a train control system using wireless, the ATACS (ADVANCED TRAIN ADMINISTRATION and COMMUNICATIONS SYSTEM), which uses dedicated wireless lines for JR East, has been introduced on the Saikyo Line and Sengoku Line.This new system using a general -purpose communication network is advantageous for local lines with a small number of trains, but unlike ATACS, the line may be a congestion situation called "congestion".In that case, it is regarded as a problem that the train may stop.