Patent · US Active

Message protocol for efficient transmission of vital directives on a guideway

US8090486B2 · kind B2 · utility

3Cited by
3References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 20, 2009
Grant dateJan 3, 2012
Priority date
Expiry dateFeb 26, 2030

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB61L3/12
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A method for delivering and maintaining mandatory directives data from a central office server to an on-board system. Mandatory directives include the enforceable train control data required for a train operating on controlled track. The method enables the on-board system and the central server to exchange data in a vital manner, in part by checking for any inconsistency between i) the on-board system's data as previously transmitted and ii) the required data as represented by both a transmitted set of data identifiers and an associated error correction code.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.