Overview
JR Central has developed a new technology that allows efficient inspection of tracks, overhead lines, and other equipment on the Tokaido Shinkansen using regular service trains, without relying on the dedicated inspection train “Doctor Yellow.” This innovation aims to increase inspection frequency, reduce costs, and further enhance safety.
Planned Start of Operation: January 2027
Key Points of the New Technology
Track Inspection System
Previously, laser-based inspections required raising the train floor, which lowered the ceiling height in passenger cars, making installation in service trains impossible.
The new system does not use lasers and can measure tracks using only a single bogie, enabling inspections with regular trains (patent pending).
current situation
from now on
Overhead Line Inspection Device
Doctor Yellow traditionally inspected overhead lines using sensors mounted on a dedicated measurement pantograph.
The new technology uses three cameras installed near the current-collecting pantograph to photograph and analyze the overhead lines, automatically detecting abnormalities. A dedicated pantograph is no longer required.
current situation
from now on
Front Car Imaging Device
Cameras installed in the driver’s cabin of service trains automatically detect obstacles such as power lines and poles at high speed.
This is the first domestic system to utilize image processing and AI for this purpose.
current situation
from now on
Expected Benefits
-
Enables track, overhead line, and equipment inspections using only service trains, without relying on Doctor Yellow.
-
Some inspections that previously required visual checks by staff can now be automated, reducing labor and train costs.
-
Increased inspection frequency allows for further enhancement of the Tokaido Shinkansen’s safety.
