Temporary train speed restriction management method and system
US12172687B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Sep 18, 2021 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | May 7, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L27/70
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A temporary train speed restriction management method and system. Temporary speed restriction instructions are managed by adopting a uniform session management framework. The temporary speed restriction instructions in a session are uniformly processed in a session closing stage. The availability of a communication link is detected. The method and system performs life cycle management on the temporary speed restriction instructions by adding a timeliness mechanism for the message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.