Fraport AG | Detection and Tracking of Aircraft

100% detection of aircraft

On almost every airport detecting and tracking aircraft is not fully complete; there are so-called gaps. Ground radar, for example,  has gaps due to shadows and reflections, a problem which has not yet been solved. Such gaps may now be closed by the MagSense® magnetic field sensor.

MagSense® of MobiliSis® excels in its absolutely accurate detection. No environmental influences like visibility, precipitation, intensity, temperature, etc. affects detection. Therefore, due to its optimum performance and data quality MagSense® is ideal for aircraft detection and monitoring, closing any remaining vulnerabilities which may exist.

Aircraft detection, guidance and tracking

The test-installation of MagSense® at Frankfurt Airport (FRA), commissioned by the Fraport AG, shows the enormous potential MagSense® has.

To begin with, it can be asserted that all aircrafts are clearly detected. And, as the example on the left shows, besides the general aircraft detection further identifiable details like nose wheel, main gear and engines can equally be acquired. As regards the engines, MagSense® can even distinguish whether they are operated under full load or zero load.

Such a detailed detection is the basis for an allocation to the different types of aircraft. The classification allows the accurate localization of the aircraft at a stop bar or at its parking position.

Cutting the runway surface

Cut over the entire width of the taxiway

Work steps of the sensor installation process

At Frankfurt Airport (FRA) the sensors were installed in a cut, like inductive loops, for example. As far as the installation of MagSense® is concerned, only a straight cut is required, not a rectangular one as for inductive loops. This makes work much easier.

Alternatively it is possible to lay conduits for the sensor installation under the taxiway. This would be particularly appropriate if new taxiways were built.

Once the cut was made, a 1 to 2-cm-thick layer of quartz sand was introduced and spread evenly. Then the sensor cable could be laid. To protect sensors and cable a PE cord, which is 5 mm wider than the cutting width, covers the sensor cable. Finally the cut was sealed. Here, a cold sealing compound was selected, but a hot compound would also have been possible.

Laying the sensor cable (picture shows the centre line)

Middle sensor positioned exactly on the centre line

Unreeled PE cord (here 35mm)

PE cord pressed into the cut

Sealing the cut with cold sealing compound

Section with hardened casting compound