Computer-controlled electronic system monitor
US4823280A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Mar 12, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An electric power monitor system for radio communication (trunking and paging repeater base station) systems includes a plurality of input switches, power sensors, a power monitor having a display, keyboard, and microprocessor, a printer port, and communications port. The input switches facilitate alarm inputs, for example, unauthorized entry, flooding, fire, and temperature of the antenna site. The power sensors include bidirectional and unidirectional sensors connected to a communication system having tunable components for producing analog signals indicative of system component performance. The power monitor measures, determines, and reports locally and/or remotely the power output and standing wave ratio of transmitters and antennas, insertion loss of combiners and power to and SWR of antennas and alarms. Specific measurements and computations are: (1) transmitter input power forward to the combiner; (2) reflected transmitter power on the input side of the combiner; (3) reflected power from the antenna side of the combiner; (4) transmitter voltage standing wave ratio; (5) combiner insertion loss (IL) per channel; (6) time and date of most recent channel measurement; (7) antenna…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.