Alarm system receiver supervisor
US6054920A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1996 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Oct 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B25/10
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A wireless sensor receiver module for an alarm and/or event reporting system having the capability of monitoring the operational integrity of associated wireless receiver circuitry relative to RF sensor transmissions. A receiver module supervisory timer is reset with the receipt of each sensor transmission, whether an event or supervisory transmission. If sensor transmissions are not received within a supervised receiver time period determined as a function of the number of system sensors, the receiver module communicates a receiver failure condition to the system controller. Noise monitoring circuitry separately monitors the transmissions to enhance the confidence in a receiver failure determination or adjust the period of the receiver module supervisory timer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.