Technology Focus: Auto-Sensitivity

Auto-Sensitivity allows the Pyronix detectors to self-adapt to changing environmental conditions, in order to maintain stability and intruder catch performance.

How do we do this? Well, inside all Pyronix detectors is a microprocessor which holds all of the intelligence that makes them stand out from the competition.

Within the Pyronix microprocessor there is a software temperature compensation algorithm. This algorithm controls the alarm trip thresholds; when the temperature is low, the alarm thresholds are wide; when the temperature starts to increase, the algorithm moves the trip thresholds inwards. This method enables the Pyronix detectors to maintain optimum stability, as well as optimum detection performance.

An additional piece of software within the microprocessor is Auto-Sensitivity. When the temperature is low or in the mid 20°C area, two zones need to be activated to generate an alarm.

When the temperature increases towards 30°C, the Auto-Sensitivity software will change state so that a person only has to cross one detection zone to generate an alarm. This piece of software within the Pyronix microprocessor will again enable the detectors to maintain stability and optimum detection performance.

While it is the microprocessor that holds all of the intelligence, it uses another important component as a sensor. This component is called a thermistor, which changes its resistive state in relation to temperature. So, when the thermistor is at a certain resistive value then the microprocessor temperature compensation algorithm will move to its respective temperature state.

So, in simple terms the microprocessor is receiving its temperature state from the thermistor within the electronic circuit, which enables the temperature compensation algorithm and Auto-Sensitivity software to maintain superior detection performance in changing environmental conditions.