Remote supervisory monitoring and control apparatus connected to monitored equipment
US5200987A · kind A · utility
Inventor
Key dates
| Filing date | Jan 18, 1991 |
| Grant date | Apr 6, 1993 |
| Priority date | — |
| Expiry date | Jan 18, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A monitoring and control system has a programmable apparatus connected to equipment to be monitored. The apparatus receives inputs from the monitored equipment, detects alarm conditions when the monitored inputs reach predetermined values, dials automatically over the telephone network to reach an operator when an alarm condition is detected, provides complete status of monitor and control ports by synthesized voice, operates under programs in an operator-controlled mode or in an automatic mode to produce control signals of different form to control the monitored equipment in response to control commands from a first source when in the operator controlled mode and from a second source when in the automatic mode, the progams providing the second source of control commands when in the automatic mode and defining: PA1 (a) the source of control commands according to whether the apparatus is in operator-controlled or automatic mode and PA1 (b) the response to the control commands represented by the form of the control signals at the output ports of the microprocessor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.