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US 8,328,143 B2Granted
Method for isolation of vital functions in a centralized train control system
AssigneeLockheed Martin Corporation
InventorsRobert B. Groves, Jr., Richard A. Allshouse
Life of this patent
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Abstract
A method and system for reducing, in a centralized train control system, the portion of a centralized server application that is considered vital while not reducing the overall vitality of the system.
Claims12
A centralized train control system comprising:
- a centralized server, wherein the server comprises an adjudicator that is implemented as software that is running on a processor in the server, and wherein the adjudicator is configured to:
- (a) receive a request from a non-vital component of the centralized train control system, wherein the request proposes a directive to be transmitted to at least one of a trackside and a train-borne component of the centralized train control system,
- (b) evaluate the request, based on vital resources, to determine whether to validate or reject the proposed directive, wherein the vital resources comprise a vital copy of vital messages that are received by the server, and
- (c) when the proposed directive is validated, transmit a vital message that comprises the directive.
1 more element
A method for operating, via an adjudicator, a centralized train control system, the method comprising:
- (a) receiving, by the adjudicator, a request from a non-vital component of the centralized train control system, wherein the request proposes a directive to be transmitted to at least one of a trackside and a train-borne component of the centralized train control system;
- (b) evaluating the request by the adjudicator, based on vital resources, to determine whether to validate or reject the proposed directive, wherein the vital resources comprise a vital copy of vital messages that are received by a centralized server that executes the adjudicator;
- and
- (c) when the adjudicator validates the proposed directive, transmitting a vital message comprising the directive;
- wherein the centralized train control system comprises the centralized server.
2 more elements
Dependencies are inferred from the claim text.