Apparatus for controlling distributed electrical loads

Details Apparatus for controlling distributed electrical loads Apparatus for controlling distributed electrical loads

1981-11-30

1984-11-20

Ruggiero, Joseph F.

Boots, shoes, and leggings

34082507, 364492, G06F 1546

Patent

active

044842589

ABSTRACT:
An apparatus for controlling distributed electrical loads including a microprocessor based central controller coupled via a twisted pair bidirectional data line to a plurality of microcomputer based transceiver decoders. Each transceiver decoder is coupled to a plurality of relays, each relay associated with a particular load to be controlled. Override switches and sensors, coupled to transceiver decoders provide override requests and information related to amibient conditions at the site of a load. A user defined data base includes sub-sets of relays called sectors, patterns of relay states, remote switches, a time dependent schedule and condition responses. A communication protocall and arbitration scheme provide for interactive communication between the central controller and each transceiver decoder with interfacing with the operation of any other transceiver decoder. Enhanced data storage capacity is achieved through dynamic allocation of memory space for pattern data. This divisional application is particularly directed to an improvement in the transceiver decoder permitting it to accumulate data from switch actuations and then transmit this accumulated data to the central controller whenever the transceiver decoder can gain access to the twisted pair data line.

REFERENCES:
patent: 3629859 (1971-12-01), Copland et al.
patent: 3845472 (1974-10-01), Buchanan et al.
patent: 3921152 (1975-11-01), Hagar et al.
patent: 4107656 (1978-08-01), Farnsworth
patent: 4138669 (1979-02-01), Edison et al.
patent: 4156866 (1979-05-01), Miller
patent: 4264960 (1981-04-01), Gurr

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