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Today’ s security surveillance requirements ask for easy to use, quickly installed detectors for perimeter protection and volumetric area coverage.

Passive Infrared (PIR)

  • Passive infrared is detecting the slightest changes of thermal radiation emitted by any object or body having a surface temperature above the absolute zero (-273°C). The intensity of the radiation depends on the surface temperature, the size and structure of a target but not its colour or lighting conditions.
  • Computer designed optical systems provide excellent uniformity in coverage over the full range of up to 100 m (330 ft) and more for human intruders while sophisticated signal processing reduces nuisance alarms caused by small animals or moving vegetation.
  • Passive operation enables single ended configuration, providing cheaper and simpler installation and alignment compared to systems requiring transmitter and receiver. This makes PIR detectors an ideal complement to CCTV systems including video motion detection.
  • The small size and unobtrusive design let the detectors blend very well into the background even in aesthetically sensitive environments. As the PIR detector does not emit anything, it is virtually impossible for a potential intruder to know how and where exactly the area is protected.
  • PIR detectors in outdoor applications are usually combined with alarm verification by video or a video motion detection (VMD) system.



Outdoor (PIR) Detection
Reference list of Applications

The most common applications for outdoor PIR detectors are for perimeter protection around a sensitive building or site or for area protection.  The following list is a selection of successful applications where ASIM’s PIR detectors are in use as a detection device, usually in conjunction with at least CCTV verification. High-risk object are normally protected by detectors of different technologies or other auxiliary system such as a video motion detection (VMD) systems.
    
  •     Airports
  •     Animal farms
  •     Banks
  •     Borders
  •     Business centres
  •     Electric power plants
  •     Factory buildings
  •     Government buildings
  •     Hospitals
  •     Historic buildings and sites
  •     Industrial premises
  •     Water purifying plants
  •     Military installations
  •     Nuclear power plants
  •     Oil refineries and storage plants
  •     Palaces
  •     Pipelines
  •     Ports and harbours
  •     Prisons
  •     Public transport depots
  •     R & D companies
  •     Space centers
  •     Telecommunications installations
  •     Warehouses
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