After sensors are calibrated, sensors continuously monitor the microclimate near the sensors. When one or more sensors in a Silvanet system detects a fire, fire notifications (alerts) are sent immediately to users who are registered with the Site associated with the detecting sensor(s). The alerts are sent as an email and as an alert in the Site Management app.
Phase 1: Air Quality deterioration detected
After the sensors have been calibrated and ready to detect fires, a gas sensor built in to the Silvanet sensor “smells” the air on a regular basis and generates an Air Quality value (an IAQ)(1). If the gas sensor detects a significant variation in the Air Quality value within a short period of time, a Phase 1 alert (yellow) is triggered, which is not seen by end users.
- Air quality is quantified as an Index of Air Quality (IAQ) which has a range of values the indicates the quality of air within range of the sensor. It is used by the Silvanet sensor to trigger a Phase 1 alert, if it passes a defined threshold.
Phase 2: Gas scans determine if deterioration is a smoldering fire
After the Phase 1 alert is triggered, the Silvanet sensor's internal gas sensor performs a series of gas scans. The results of the gas scans are compared to a Machine Learning (ML) model to determine the probability if the Air Quality deterioration originated from a smoldering fire or from some other source.
If the probability exceeds a defined threshold, then the sensor predicts that a smoldering fire has occurred within the range of the sensor. This triggers a Phase 2 alert (red)
Fire alert: Users can immediately respond to the smoldering fire
When a registered user receives a Fire alert, immediate action can be taken to extinguish the fire. The fire notification includes the location of the detected fire and phone numbers of a local fire department to alert them of the fire.