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iwildfire® system is an Automatic Fast Forest Fire Detection System that the iintegra group has developed to be used in forest with communications with a Control Centre. The system has a range above 5 km and can cover an area larger than 8.000 hectares in some three minutes, which is an acceptable coverage for small forests where fire protection is needed.

iwildfire® is based on the technology called Optical Pseudo-random Signal Extraction and Noise Elimination (OPSENE), or with the more intuitive name of NeoLIDAR, as it shows similarities with LIDAR. iwildfire® sends out the so-called Pseudo-Random Modulated Beam (PRMB) above the skyline drawn by the trees, mountains, unevenness of the terrain... This PRMB is normally lost to infinity and nothing returns to the system. If a smoke plume appears over the horizon, the PRMB impacts against it and the scattering phenomena takes place. Thus a fraction of PRMB is scattered at 180 degrees (backscattering), and returns to the system where it is detected. The software analysies the tiny fraction of PRMB received, in order to evaluate whether it corresponds to a false alarm. In case of positive identification an alarm warning is sent to the Control Centre, together with a picture of the smoke plume, so that an operator can assess the seriousness of the alarm and decide upon the appropriate course of action.

iwildfire® can be used to detect very fast the smoke coming from just-started forest fires.

lidar neolidar

Different views of the final design of iwildfire®

A graphical representation of the functioning of iwildfire®, can be seen below:

iwildfire® is a system that works 24/7 sending PRMB signals continuously to monitor the area under its influence, with the same performance even if there is no daylight. In fact it works even better at night, because the system only responds to its own emitted PRMB light. 

Main features:

  • iwildfire® has been designed to detect fires at a very early stage, being capable of detecting those fires before the smoke has formed a large, visible, column, and even when there is no open flame, and the temperature of the burn is very low.
  • A single iwildfire® unit can cover up to 8.000 hectares (5 kilometers radius) and further units can be added to extend the coverage. These units are completely autonomous and automatic, and do not require local human intervention.
  • iwildfire® can work 24 hours per day 7 days a week (24/7) and its capacity is improved during nighttime.
  • The detection is done by measuring of the scattering of light by smoke (or some other atmospheric contaminant).
  • iwildfire® sends out the so-called Pseudo-Random Modulanted Beam (PRMB) above the skyline drawn by the trees, mountains, unevenness of the terrain... to be protected, and detects any tiny fraction of the PRMB which returns to the receiver as it gets scattered by a smoke plume hovering over horizon (optionally extra detectors can be used to extend the coverage).
  • iwildfire® system continuously scans the area under its control, and records the signal returned at each point, and can complete a full 360 degree sweep in some than three minutes.
  • iwildfire® is insensitive to other infrared light sources, such as sunlight, artificial lighting, and optical communication system and will only respond to its own emitted PRMB light.
  • Once a iwildfire® unit detects a signal that indicates fire, it captures an image of the point where the signal came from and sends the information to a Control Centre. At the Control Centre it is expected that a final decision on whether there is a true danger will be made by a human operator .
  • A single Control Centre can manage a larger number of units, and can be integrated into other control systems.
  • iwildfire® can be remotely controlled from the Control Centre.
  • iwildfire® software can be remotely upgraded, even its firmware. No need to go to the installation place to upgrade the systems.
  • iwildfire® sends technical warnings related with potential failures (low battery, mains supply cut...) to the Control Centre, in order to facilitate the system's maintenance.

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