Communications: electrical – Continuously variable indicating – With meter reading
Patent
1994-10-11
1996-10-15
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
34031002, 34082569, 34082522, 36446401, G05B 2302, G08C 1900
Patent
active
055658555
ABSTRACT:
A building management system improves the regulation and controls the functioning of appliances (41, 42, 51), such as luminaires, window blinds and heating equipment in a building. The appliances are connected via a communication bus (20) to a control system (10), which performs the automatic regulation and control. To avoid rewiring the bus (20) every time that changes are made to the arrangement of the appliances and/or the lay-out of the building, transponders (40, 50) are mounted at regular fixed places in the building, which transponders transmit bus signals wirelessly to the appliances (41, 42, 51). Additionally the transponders may be provided with a receiver (50a) for two-way communication between appliances and system and for communication between the user and the system using a remote control unit (59).
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F. William Gutzwiller, Control Networks for the Home, Oct. 20, 1983 pp. 109-112, Machine Design Magazine, Industry Standards Staff, General Electric Company, Fairfield CT 06431.
IBM Technical Disclosure Bulletin, vol. 33 No. 10 B Mar. 1991 pp. 270-272.
Gathman Laurie E.
Horabik Michael
Merz Edward
U.S. Philips Corporation
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