Abstract: Control and servo control intercommunicator apparatus, of the type comprising at least input means to detect data from at least one external apparatus connected thereto, means for memorizing and processing said data and means for transmission of the data processed to a remote central command and/or processing system. The apparatus further comprises integrated therein servo control means for said apparatus/apparatuses to be controlled.

Abstract: An airport surface detector and control system to detect aircraft, vehicles, and other objects moving on concerned pathways of the airport, including at least a Central Processing Unit and Central Surveillance/Control Unit. The system comprises at least a laser-scanning head at the entry of the pathways, and able to cooperate to identify the moving object on its pathway, integrated by a plurality of ground laser-detector units distributed along the pathway and placed one in front of the other. Each ground detector unit contains at least a laser emitter or a laser receiver and one laser ray is emitted from each head against the other head, in a parallel close way, in order to be able to detect interruption of one and/or the other laser-ray.