Facility for fail-safe data transmission between trackside equip

Details Facility for fail-safe data transmission between trackside equip Facility for fail-safe data transmission between trackside equip

1981-09-14

1984-06-26

Malzahn, David H.

Excavating

246 28F, G06F 1116, H04L 122

Patent

active

044569971

ABSTRACT:
A facility for fail-safe data transmission between trackside equipment of a guideway and vehicles moving therealong is disclosed which transmits two identical data records held in two independent storage arrangements in the trackside equipment to a data receiver in the vehicle according to fail-safe principles. Error protection of the data is provided by means of a cyclic code. To enable monitoring the transmitting equipment for component failures from the receiving equipment, a special bit group is transmitted whose bits are checked for equivalence in the receiving equipment.

REFERENCES:
patent: 3794834 (1974-02-01), Auer, Jr. et al.
patent: 3992698 (1976-11-01), Sahasrabudhe et al.
patent: 4209828 (1980-06-01), Anderson et al.
patent: 4349170 (1982-09-01), Bilet et al.

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