TV SYSTEM FOR TAXING, TAKING OFF AND LANDING AIRCRAFTS AT COMPLICATED METEOROLOGICAL CONDITIONS Russian patent published in 1994 - IPC

FIELD: aviation. SUBSTANCE: TV system has ground-based equipment and board equipment mounted on board of the aircraft. Ground-based equipment has landing signal lights, which irradiate light in visual wave range, installed on both sides of runway, flashing frequency generator, which has output connected with inputs of flashing beacons, high-voltage power supplies of pairs of flashing beacons, which have transformers provided with windings and high-voltage rectifiers. On-board equipment has TV camera provided with objective and sync generator, data representation unit, selection unit, which has input connected with output of TV camera, and unit for computing parameters of aircraft motion. The computational unit has circuits for calculation of raster coordinates, interpolation, errors in deviation of route of the aircraft from axial line of runway and distance calculation. Outputs of the units are connected to data representation unit. On-board equipment has also timer, which has input connected with one output of TV camera, and its outputs are connected with one input of selection unit, inputs of unit for computing parameters of aircraft motion and data representation unit. TV system has also automatic drive of objective of TV camera and objective drive control circuit; both are disposed in optical system of TV camera. Control console has one output connected with distance measuring circuit, and the other output is connected with objective drive control circuit. One output of selection unit is connected with input of timer of TV camera. Angle/code detector is mounted onto shaft of drive of objective. One output of the detector is connected with one input of distance measuring circuit. One output of distance measuring circuit is connected with input of drive control circuit. Output of the latter is connected to drive of objective. EFFECT: improved reliability: improved precision; improved safety. 2 dwg