05103391 is referenced by 160 patents and cites 10 patents.

A highly distributed direct digital process control system for use in controlling a fully distributed process includes at least one device controller independently monitoring and controlling a plurality of external devices for performing a complete process. One or more data concentrator units are connected to the controllers for collecting information from each controller as well as directing updated control information to specific controllers. A central information processing means is connected to the data concentrator for displaying information received from the data concentrator. The central information processing means is capable of updating control information used by specific controllers.

Title
Control system for controlling environmental conditions in a closed building or other conditions
Application Number
105804
Publication Number
5103391
Application Date
May 31, 1989
Publication Date
April 7, 1992
Inventor
Michael R Barrett
Barrington
IL, US
Assignee
M T McBrian
IL, US
IPC
G06F 13/12
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