A-SMGCS | Supporting Sensor Technology

Many A-SMGCS in use at European airports and worldwide have difficulties to meet the requirements of the European minimum standard EUROCAE ED-87C. This is true, although the standard is not fully adapted to the operational requirements of the new A-SMGCS functions. This shows why airports across Europe and beyond have been actively seeking technological solutions for a number of years in order to increase the detection quality of their sensors (for example, with respect to spatial accuracy, probability of detection, and number of detection gaps). The airports are striving to improve the safety on the aerodrome surface and to use the new A-SMGCS functions. MagSense Air can deliver very exact position information in standardized data format (EUROCONTROL ASTERIX) to an A-SMGCS as a point-acting, highly precise, cost-effective and interference-independent sensor. In addition, MagSense Air is very easy to implement as a Supporting Sensor Technology. This applies irrespective of whether sensor bus systems are to be used, or integrated sensor guidance lights.

Installation in Ducts and Pipes

Based on its configurable sensitivity and long-lasting protection against water and other fluids, such as oils and fuels, MagSense Air can be installed in existing ducts and pipes underneath the taxiway surface and used as Supporting Sensor Technology. In this case, the nature of the pipe or duct is irrelevant. The sensor data are transmitted via a CAN bus to an intelligent GPRS processing and transmission unit. Optionally, position information in standardized format can be generated by the local processing units or on a central server. These can then be delivered flexibly wirelessly or via local area network into the existing system landscape and to a Multisensor Data Fusion according to customer requirements. In general, it is advisable to install appropriate ducts and pipes for the later installation of MagSense Air in the case of building new taxiways, aprons, or runways, or when maintenance work is carried out. This is cost-effective and keeps future updates an easy option.

Installation in Joint Cuts

As an alternative to the use of empty pipes and ducts, MagSense Air can also be inserted very easily, cost-effectively and quickly into joint cuts. This technique is also used in road traffic, for example in order to install induction loops which are technically less powerful than MagSense Air. When installing MagSense Air in a joint, existing joints can be recessed or new joints can be cut. In any case, these have to be about 6 to 8 cm deep and about 2 cm wide. In the next process step of the installation, a 1 to 2 cm thick layer of quartz sand is introduced into the joint and distributed evenly, before the sensor cable is inserted. To protect the sensors and cables, a PE cord is placed over the sensor cable which is 5 mm thicker than the cutting width. Finally the sealing of the joint is done with a suitable sealing compound. This seals the joint completely and permanently and keeps it elastic. With this simple installation technique it is possible to equip whole areas in one single night with Supporting Sensor Technology. The connection from the sensors in the joints to the existing airside system landscape is realized via a CAN-Bus, an intelligent GPRS processing and transmitting unit and flexible, cable-connected or wired interfaces to a multi-sensor data fusion.