Wireless train control system
JP7881086B2Active Publication Date: 2026-06-26MITSUBISHI ELECTRIC CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- MITSUBISHI ELECTRIC CORP
- Filing Date
- 2024-02-05
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
Existing wireless train control systems face challenges in improving the accuracy of train position detection and correction without ground coils.
Method used
A wireless train control system that detects train positions without ground transponders by using a detection unit to identify boundary crossings, creates boundary crossing data, and corrects train positions by accounting for transmission delay time using a train position correction unit.
Benefits of technology
Enables accurate train position detection and correction by compensating for transmission delays, eliminating the need for ground beacons.
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Smart Images
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Abstract
Provided is a wireless train control system capable of detecting the train position without a ground coil and correcting the train position in consideration of a transmission delay time. This wireless train control system comprises: a ground device comprising a detection unit that detects that a train has crossed a boundary located on a railroad, an identifier that can specify the boundary position when the detection unit detects that the train has crossed the boundary, and a cross-boundary data unit that creates and transmits, to the train, cross-boundary data having stored therein a serial number of data received from the train immediately before the train crosses the boundary; and an on-board device comprising a train position data unit that creates train position data having stored therein the train position and the serial number of the data, and that periodically transmits the train position data to the ground device, and a train position correction unit that, when the cross-boundary data has been received, corrects the train position by using the value obtained by adding the boundary position specified from the identifier in the cross-boundary data to the value obtained by subtracting, from the current train position, the train position immediately before crossing the boundary specified from the serial number in the cross-boundary data.
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