<p>A data monitoring system includes a display unit for communicating with an operation that has characteristics which are to be monitored, a recording unit located remotely from the environment of the monitored operation, and a local area network interconnect circuit for connecting the display and recording units. The local area network circuit allows multiple display units to be connected to a single pair of electrical conductors. Each display unit has at least one dual microcomputer configuration interconnected by a shared dual port random access memory. A third microcomputer is located in the recording unit for communicating over the local area network circuit with one of the microcomputers in the display unit.</p>
申请公布号
NO871323(A)
申请公布日期
1987.10.01
申请号
NO19870001323
申请日期
1987.03.30
申请人
HALLIBURTON CO
发明人
SEARS, LESLIE RAY;PITTS, ALAN JOE;CRAIN, STEPHEN FRANKLIN;WOODALL, EDWARD LEWIS;GREEN, MICHAEL LAWRENCE;DAUNIS, EUGENE JOSEPH;CLARK, MARK ALLEN;ROBERTS, DON MICHAEL