Surveillance control apparatus for security system
US4658243A · kind A · utility
36Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1984 |
| Grant date | Apr 14, 1987 |
| Priority date | — |
| Expiry date | Nov 5, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B26/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a polling type surveillance control apparatus for a security system, inherent addresses are assigned to respective terminal devices such as smoke detectors, temperature sensors, gas leakage detectors, fire partitions and smoke dampers. When a self address detector in the terminal device detects a coincidence between the address signal from a central station and a preset self address, the terminal device indicates it has been accessed or energized and power control thereof may also be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.