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Security Radar:
In security applications, UMRR radars are used for medium (40-50m) and long range (80-120m, detection range for a human person) surveillance. One or more predefined areas can be secured using a single sensor or a set of sensors in a network.
The task is to reliably detect humans (either moving or stationary) inside the field of view. At the same time a very low false alarm rate (caused by rain, snow, animals or other moving objects) is required. As every radar can precisely measure the position of a person, alarm zones can be selected in a simple manner.
Advantages:
- Low installation cost.
- Zero maintenance cost.
- Long lifetime.
- All weather operation.
- Combination with cameras possible (in network).
- Dual surveillance technology.
- Self calibrating radars.
- Self diagnostics on board (i.e. sensor blind etc.).
- Sensors can be mounted invisibly behind plastic or other, nonconductive material.
In the example below, an alarm zone was defined, secured by two radars which are mounted outside the surveillance area.
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Technical Data (in this example):
- Detection range intervals of 40-50m and 80-120m possible.
- Min. Range 1.5m.
- Speed interval +-100km/h (+-27.8m/s).
- Angle interval (narrow beam): +-5° (Azimuth) x +-4.5° (Elevation).
- Angle interval (wide beam): +-35° (Azimuth) x +-6° (Elevation).
- Cycle Time: 120ms
- Size: 10.5 x 9.4 x 3.4 cm (W x H x D).
- Weight: 335g.
Example Video (AVI, 6.2 MB).
In the example, a person is slowly walking through the detections zone.
Any other combinations of sensors is possible. The positioning of the units is mainly a geometrical question. Please see the two additional examples below (#1: surveillance around an industrial site, #2: field of view of one 100m sensor).
Details on radar technology.
Details on frequency approval.
Details on interfaces.
Sensor Network:
Through a proprietary digital interface, the communication between all sensors and the central units is established. Sensor fusion and alarm processing is located in the controller’s room.
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