Environmental detection system useful for fire detection and sup

Details Environmental detection system useful for fire detection and sup Environmental detection system useful for fire detection and sup

1990-08-17

1992-04-14

Lall, Parshotam S.

Boots, shoes, and leggings

340501, G08B 2900

Patent

active

051053705

ABSTRACT:
An environmental detection system particularly useful for fire detection and suppression is provided which ensures high reliability in operation and high reliability in preventing false operation. The preferred system includes a microprocessor-based, software-governed, control panel connected to one or more detector loops. Each loop includes a plurality of parallel-coupled, addressable detectors which send analog signals to the control panel representative of an environmental parameter such as smoke obscuration along with reference and identification signals. The preferred system provides automatic calibration and test of the detectors, automatic testing under load of the backup batteries, flexibility in defining the protective scheme, and storage of history information concerning system alarms and troubles. The preferred system also verifies alarm conditions before actuating an alarm or discharging a fire suppressant.

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