Method and apparatus for checking electrical drive mechanisms

Details Method and apparatus for checking electrical drive mechanisms Method and apparatus for checking electrical drive mechanisms

1998-06-01

2000-02-08

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340635, 340661, G08B 2100

Patent

active

060232285

ABSTRACT:
A method and an apparatus are provided for checking a plurality of electrical drive mechanisms which may, in particular, be drive mechanisms for railroad switches. Measured values are picked up at the same time at the plurality of electrical drive mechanisms, and the signals describing them are provided with a drive mechanism-specific identifier. These thus-identified signals are then carried without interruption, on-line, to a data processing system, where they are compared with desired values that are available there. If a signal deviates from a desired value, an error is indicated for the particular drive mechanism at which the signal originated.

REFERENCES:
patent: 2173123 (1939-09-01), McDonald
patent: 4149160 (1979-04-01), Bozarth et al.
patent: 4366474 (1982-12-01), Loewenstein
patent: 4977390 (1990-12-01), Saylor et al.
patent: 5050823 (1991-09-01), Parker
patent: 5315256 (1994-05-01), Schuyler
patent: 5506572 (1996-04-01), Hills et al.
patent: 5623254 (1997-04-01), Brambilla et al.
"Mikroelektronik in der Energietechnik" (microeletronics in the energy technology), VDE-Verlag GmbH, D. Oeding, Darmstadt, pp. 22-41.
Published International Patent Application No. 93/08482 (Kutzer), dated Apr. 29, 1993.
Published International Patent Application No. 93/23760 (Swindler), dated Nov. 25, 1993.

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