Over Height Vehicle Detection
RAM20 has been developed to detect moving objects passing over the allowed height. RAM20 is also able to measure the distance of the object from the sensor and therefore to give information about the lane in which the object passed (even in roadside installation). This system is generally installed on roads close to a bridge, tunnel or other structure to safeguard.
RAM20 is based on a laser scanner with 4 planes of detection (which helps for a precise detection of small objects and to avoid false alarms) with a beam width of 96 degrees. The emitted light (in the range of the infrared light, not visible) is modulated to be captured on the receiver filtering the ambient light noises.
The laser scanner has an internal heating system to avoid the moisture condensation on the optical lens.
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