Boots – shoes – and leggings
Patent
1978-01-16
1980-04-15
Gruber, Felix D.
Boots, shoes, and leggings
364101, 371 68, G06F 1550, B61L 2704
Patent
active
041986784
ABSTRACT:
A vehicle control unit for a short-distance traffic system is disclosed wherein a plurality of vehicles are controlled from a center. Each vehicle carries at least two on-board computers each of which process the control commands coming from the center to provide commands to on-board units and compiles telegrams to the center concerning the condition, location and speed of the vehicle in response to information from the on-board units. Both computers perform the necessary processing independently of each other. A comparator ensures that commands to the on-board units and the compiled telegrams are not sent until this information is received in identical form from both computers. Each computer delivers life signals at regular intervals to an associated emergency brake circuit, which initiate emergency braking if life signals from the associated one of the computers are not received within a given period of time. In the event of a malfunction in a computer, a standby computer or a pair of standby computers is put in action.
REFERENCES:
patent: 3517174 (1970-06-01), Ossfeldt
patent: 3810119 (1974-05-01), Zieve et al.
patent: 3978327 (1976-08-01), Huber
patent: 4012717 (1977-03-01), Censier et al.
patent: 4015804 (1977-04-01), Dobler et al.
patent: 4030074 (1977-06-01), Giorcelli
patent: 4032757 (1977-06-01), Eccles
Costa et al.: Sao-Paulo Metro E-W Line Innovations, IEEE Industry Applications Society Annual Meeting, Oct. 2-6, 1977, p. 1106, last paragraph in the first column of interest, pp. 1105-1109.
Maatje Henri
Spannagel Richard
Gruber Felix D.
Hill Alfred C.
International Standard Electric Corporation
O'Halloran John T.
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