Railways – Selective delivery
Patent
1986-02-20
1988-02-23
Reeves, Robert B.
Railways
Selective delivery
104295, B61J 300
Patent
active
047262990
ABSTRACT:
A method and apparatus for controlling movement of a vehicle through a network is disclosed. The network has a plurality of stations interconnected by a plurality of path segments. A plurality of branch points connect the path segments and require a vehicle approaching a branch point to be directed in either a first or second direction. Line-defining parameters are provided for each of the branch points and define a network-dividing line which divides the plurality of stations into a first set which are attainable by a vehicle being directed in a first direction and a second set attainable by a vehicle being directed in a second direction. Coordinates of a destination station are associated with a vehicle. As the vehicle approaches a branch point, the coordinates of the destination station are compared to the line-defining parameters of the approaching branch point and the destination station is determined to be in either the first set or the second set. The vehicle is directed in a first direction if the destination station is determined to be in the first set and in a second direction if the station is determined to be in a second set.
REFERENCES:
patent: 3893397 (1975-07-01), Gayot
patent: 3895584 (1975-07-01), Peddison
patent: 3933099 (1976-01-01), Sieb
Jack H. Irving, Fundamentals of Personal Rapid Transit, Subchapter of Chapter 4 entitled "Centralization Versus Decentralization", p. 110.
Jack H. Irving, Fundamentals of Personal Rapid Transit, Subchapter of Chapter 4 entitled "Control of Switching", p. 121.
Jack H. Irving, Fundamentals of Personal Rapid Transmit, Chapter 5 entitled "Routing and Empty Vehicle Management", p. 134.
Personal Rapid Transit III, University of Minn., (1976), paper entitled "Vehicle Management on Large PRT Networks" authored by Jack H. Irving, et al., p. 345.
Personal Rapid Transit III, University of Minn. (1976), paper entitled "Systems Management Analysis of Large AGT Networks" authored by Martin S. Ross, et al., p. 369.
Foster Glenn B.
Reeves Robert B.
Regents of the University of Minnesota
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