Signaling fire detector

US6696939B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Joachim Schneider · Ehringshausen, DE
• Anton Pfefferseder · Oberhaching, DE
• Andreas Hensel · Egmating, DE
• Ulrich Oppelt · Zorneding, DE

Key dates

• Filing date: Sep 14, 2000
• Grant date: Feb 24, 2004
• Expiry date: Sep 14, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G08B17/10
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A fire detector having a sensor group containing at least one fire detection sensor and having a control and evaluation unit, which is connected to a sensor group that is set up to evaluate signals supplied by the at least one fire detection sensor, and if necessary, that is also set up to output at least one control signal for the at least one fire detection sensor. The sensor group includes one of a chemosensor and a chemosensor array, which is connected to the control and evaluation unit for evaluating a detection signal of the one of the chemosensor and the chemosensor array, and which is set up based on a chemical sensor-operation principle to detect gas emissions and/or smoke emissions associated with a fire. The additional chemosensor may be an optoelectronic gas sensor functioning on an optode basis or an optoelectronic gas sensor array functioning on an optode basis.