Multi-zone microprocessor fire control apparatus
US5008840A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 1988 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | May 27, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/145
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
There is disclosed a multi-zone microprocessor fire control apparatus. The control apparatus employs a microprocessor which monitors a plurality of zones. Each zone may be associated with a smoke detector and which smoke detector will provide a predetermined condition when smoke is present in a zone. The microprocessor is controlled to monitor each zone by scanning the zones in a predetermined sequence. The microprocessor is associated with the key pad. According to the present invention, the key pad is accessed by a serviceman who inserts a given code into the key pad indicative of a one man test mode. The microprocessor recognizes the selection of this mode and therefore anticipates receiving an alarm condition due to the fact that the serviceman, after accessing the key pad, will enter a selected zone to provide an intentional alarm at that zone. Based on the fact that the microprocessor recognizes the selection of this one man test mode, the microprocessor will expect an alarm from the selected zone and will notify the serviceman by providing an audible alarm after the serviceman has intentionally caused the alarm. In this manner the serviceman can access each of the zones sele…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.