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Traffic Radar

4D/UHD - Ultra-High Definition Technology

UMRR-0C is the highest performance traffic radar available today, it has a wide field of view of up to 100 degree, and at the same time a range of up to 320 m or 450 m (long-range version). It can be used for up to 8 lanes. 

The multi-lane 4D object-tacking sensor provides (X, Y, Z) Cartesian coordinates or polar coordinates range, azimuth, elevation angle, as well as the speed vector simultaneously for up to 256 objects.

4D/UHD capability provides highest resolution capability in scenarios where many vehicles are closely spaced, i.e. in many lanes, dense traffic, traffic jams, stop-and-go situations.

smartmicro is the only company which has this new 4D/UHD technology available in production, it outperforms any other traffic radar.

  •  Measurement in 4 Dimensions
  •  Separation Speed
  •  Separation in Range
  •  Separation in Angle


4D/HD - High Definition Traffic Radar

UMRR-11 features a range of up to 180 m and a coverage of up to 6 lanes.

By default, the sensor provides (X, Y, Z) Cartesian coordinates or polar coordinates range, azimuth, elevation angle, as well as the speed vector of up to 126 objects simultaneously in the field of view.

Most other radar sensors on the market separate objects by one parameter, e.g. range or speed. smartmicro's 4D/HD technology UMRR-11 High Definition sensors separate objects by both speed and range.

This leads to robust performance especially in dense traffic conditions. UMRR-11 is a very cost-efficient sensor.

  •  Measurement in 4 Dimensions
  •  Separation Speed
  •  Separation in Range


Forward Firing - The Better Technology

Unlike older side firing sensors with narrow beams, the modern smartmicro radars use multiple forward firing beams.

This has many advantages. Vehicles remain inside the field of view for a much longer time, their position and speed vectors are measured with much higher quality.

Looking along the road, the mounting-position is much more flexible. Either on the roadside, at the corner of an intersection, at the median of a highway or on a gantry,

whatever sensor position: forward firing provides the best coverage. No setback is required for roadside pole mount, existing infrastructure like traffic light poles or street light poles can be used.

Other than for older side firing radars which usually need a very high mounting position, moderate heights are sufficient.

The wide angle and the long range allow the user to define up to 64 counting or trigger zones inside the field of view.

Since vehicles are tracked over a long period when they drive in the field of view, occlusion rarely happens.

high detection performance at intersections, and an excellent counting accuracy can be achieved.

The driving behaviour of vehicles can be analysed, changes in speed can be monitored, which are often an indication for incidents.

Interference Mitigation

Not only in smart cities do radar sensors play an essential role in controlling and securing the traffic flow at intersections. Typical intersections apply up to four radars.

When operating multiple radar sensors simultaneously in the same area, the problem of interference can occur.

This may lead to a drop of performance in sensitivity and detection range, which finally may lead to inappropriate traffic detection, which can affect the safety of all road users.

Stationary radars at intersections are usually configured to operate interference-free among each other by setting frequency and timing of the sensors appropriately.

Other infrastructure sensors, which may be installed at a later time, can become a source of interference, however.

Even more importantly, automotive radars which typically operate at the same frequency band, and which have become increasingly popular, can strongly interfere temporarily with intersection sensors.

What is Interference?

A radar sensor transmits electromagnetic waves. When those waves hit an object, e.g. a car, they are reflected back to the sensor. The radar sensor then measures, for example, the distance and the speed of the reflecting vehicle.

When the signals of two radar sensors interfere, the measurement of distance and speed can be disturbed, i.e. may be less precise, or may even become impossible.

smartmicro’s solution

For all radar models smartmicro has integrated Interference Mitigation. A special algorithm detects and suppresses the interference adaptively. This reliably filters out any false detections.

The detection rate in scenarios with high interference levels is significantly improved. The interference level is reported as diagnostic information.

Support for Curved Roads

 As many roads are not straight, smartmicro traffic radars support any shape your road may have.

Not by approximating the road shape with many short straight sections, but by elegantly bending the virtual lanes, just as the real road is shaped.  

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