Print this pageASIM Triple Technology Model TT292
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Product Information |
Non-Intrusive Combination Detector for Lane Selective Traffic Data
ASIM tri-tech detectors use a combination of Doppler Radar, Ultrasound and Passive Infrared in a single unit. Individual vehicle speed, class, time gap and occupancy time are available via RS 485 – in all traffic situations and all weathers, day and night.
How do ASIM Tri-Tech Detectors Work?
ASIM combination detectors measure the speed of each vehicle by means of the Doppler shift of the refl ected microwave frequency. The ultrasonic part scans the vehicle’s height profi le as it passes under the detector. The PIR channels provide lane selective information and trigger the ultrasonic measurement. In power save mode, the PIR activates the radar too.
The ASIM combination detector Model TT 292 is easily mounted on gantries or other overhead structures above the lane to be observed, or alternatively on a pole on the side of the lane.
Superior performance and reliability are standard thanks to:
- Three independent detection technologies in a single unit
- Redundant digital signal processing (DSP) with adaptive parameters
- Full temperature compensation
Applications
ASIM combination detectors are ideal for a variety of traffic data acquisition and traffic control applications where inductive loops have been used in the past:
- Vehicle classifi cation
- Counting of all kinds of vehicles
- Individual vehicle speed
- True presence and queue detection
- Occupancy and headway / time gap measurement
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