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3.1.4
Building Technologies
Fire Safety
Sensory
The signals captured by the sensory are transmitted to the algorithm. The
algorithms are set by selecting the parameter set.
Algorithms
In comparison to the detection algorithms, the individual parameters of the selected
parameter set can be adapted with ASAtechnology. A real time interpretation of the
situation leads to a dynamic influence on the algorithm. This results in a
broadening of the application range of the parameter set and thus of the detector.
The detector reacts more sensitively in the event of fire, and more robustly in the
event of deceptive phenomena.
Switching over the parameter set
In addition to selecting the parameter set, the detectors enable time- or process-
controlled switching over of the parameter sets (Manned/Unmanned switchover).
Thanks to this function, the detector can be used in places where the situation
changes significantly on a regular basis (e.g., kitchen, production hall).
Sensory
The radio fire detector has optical and thermal sensors. The radio fire detector can
be parameterized as a smoke detector or a heat detector.
Fire detector structure
1 Heat sensors
2 Backward scatterer
The radio fire detector has a sophisticated opto-electronic measuring chamber with
two optical transmitters, an optical receiver, and two thermal sensors.
The transmitters illuminate the smoke particles from different angles. One sensor
acts as forward scatterer, the other as backward scatterer. The scattered light then
hits the receiver (photodiode) and generates a measurable electric signal.
The combination of a forward and backward scatterer facilitates an optimum
detection and the differentiation of light and dark particles, which leads to a
homogenous response behavior and optimizes the differentiation of wanted signals
and deceptive phenomena.
1
4
3 Forward scatterer
4 Labyrinth
Structure and function
Overview
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3
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