摘要:
This disclosure relates to a system for preventing collisions with a terrain. The system includes a detecting means for detecting risks of collision with the terrain after a predetermined forecasting delay. The system further includes a determining means for determining, based on a trajectory followed by the aircraft, a possible limit point for success of the vertical terrain avoidance maneuver. The system further includes indication means for giving indications on azimuth clearance sections, around the direction in which the aircraft is moving, suitable for success of the vertical terrain avoidance maneuver. The system further includes means for estimating a free-travel distance in each azimuth clearance sector on a straight distancing trajectory with constant gradient and over a distance correspond to more than one minute of flight, the free-travel distance being free of potential conflicts with the terrain. The system further includes means for signaling azimuth clearance sections and free-travel distances.
摘要:
This system accompanies the alarms of TAWS type and in particular the alarms of “Avoid terrain” type indicating to the pilot that he has passed the limit point of success of a standard vertical avoidance maneuver, indications (32, 33) of free-travel distances in azimuth sectors suited to a clearance maneuver and one or more recommended relief avoidance maneuvers (A, B), both lateral and vertical. For the determination of the limit point, it monitors the penetration of a model of the terrain being flown over into a first protection volume (1) linked to the aircraft and configured in such a way as to model a standard vertical avoidance maneuver trajectory executed without notable delay. For the determination of the azimuth sectors open to a clearance maneuver, it analyzes the penetrations of the model of terrain being flown over in a second protection volume with large azimuth aperture, linked to the aircraft and configured in such a way as to contain the limit point protection volume (1). To evaluate the free-travel distances, it searches for limit points of effectiveness of a standard vertical avoidance maneuver, on arbitrary distancing trajectories in the azimuth sectors open to the clearance maneuvers. Based on the determination of these free-travel distances, the system determines the limit instant of manual initiation by the pilot or automatic initiation of an avoidance trajectory and determines the optimum route alteration to be initiated prior to the avoidance maneuver.
摘要:
Described is a method of protecting an aircraft in approach by signalling against risks of collision with a terrain in steep-sided environments in order to avoid unwanted warnings emanating from clearance sensors of the on-board TAWS (Terrain Awareness and Warning System) while protecting the aircraft when the aircraft fails to observe a published procedure which includes a landing procedure and a take-off procedure. The method, in some embodiments, includes modifying characteristics of at least one of the clearance sensors according to the position deviation of the aircraft relative to a published RNP (Required Navigation Performance) trajectory.
摘要:
The invention relates to a method and a device for monitoring risky atmospheric areas.The invention relates to an onboard device connected to meteorological measurement systems making it possible to calculate danger detection areas in front of the aircraft in order to detect potential areas of penetration of the aircraft into risky atmospheric areas.The areas of intersection between the detection areas and the risky meteorological areas are calculated according to the trajectory of the aircraft stored in the navigation system.The method makes it possible to generate alerts and force the display of the meteorological situation in front of the aircraft in case of danger.
摘要:
The present invention relates to a method of protecting an aircraft in approach by signalling against the risks of collision with the terrain in steep-sided environments, in order to avoid unwanted warnings emanating from the clearance sensors of the onboard TAWS system while protecting the aircraft when it fails to observe the published procedure, and this equally in a landing procedure and in a take-off procedure. The method includes conferring an additional function on the conventional TAWS functions, specific to the detection of the potential risks of collision of the aircraft with the terrain when following procedures of reduced protection corridor type, and this without modifying either the logics or the characteristics of the clearance sensor or sensors as currently defined in the TAWSs of the state of the art.
摘要:
A method for evaluating the licitness of the situation of a craft on the surface of an airport including the steps of: modelling of a first licitness cost surface covering a surface of the airport where the craft is deploying, termed the deployment surface, related to this deployment surface and defined by quantities assigned to its points, which quantities are representative of their memberships in flow constraint zones and of the severity in relation to the craft, of the flow constraints, modelling of a second licitness cost surface covering the deployment surface, related to the craft and defined by quantities assigned to its points, which quantities are representative of their memberships in a girth zone covering a neighbourhood of the current position of the craft, and calculation of a score evaluating the significance of the risk of violation of a flow constraint incurred by the craft on the basis of a cross-correlation function of the two licitness cost surfaces referred to one and the same benchmark.
摘要:
A method for evaluating the licitness of the situation of a craft on the surface of an airport including the steps of: modelling of a first licitness cost surface covering a surface of the airport where the craft is deploying, termed the deployment surface, related to this deployment surface and defined by quantities assigned to its points, which quantities are representative of their memberships in flow constraint zones and of the severity in relation to the craft, of the flow constraints, modelling of a second licitness cost surface covering the deployment surface, related to the craft and defined by quantities assigned to its points, which quantities are representative of their memberships in a girth zone covering a neighborhood of the current position of the craft, and calculation of a score evaluating the significance of the risk of violation of a flow constraint incurred by the craft on the basis of a cross-correlation function of the two licitness cost surfaces referred to one and the same benchmark.
摘要:
The invention relates to aiding airport navigation by emission of an alert reminding the pilot of a craft moving on the surface of an airport of the circulation constraints encountered locally over his route. The method comprises the following steps: partitioning of the circulation surfaces of the airport into elementary circulation constraint zones each enclosing a set of adjoining points subject to the same local circulation constraints, identifications of the elementary zones and of their specific circulation constraints, detection of the encroachment of the craft into the elementary zones, and upon each encroachment of the craft into an elementary zone, reminder by alert generation, to the commander of the craft, of one at least of the circulation constraints specific to the elementary zone concerned.
摘要:
A system indicating to a pilot that an aircraft has passed the limit-point of success of a standard vertical avoidance maneuver is disclosed. To determine the limit-point, the system monitors a penetration of a model of the terrain being flown over into a first protection volume linked to the aircraft and configured so as to model a standard vertical avoidance maneuver path executed without delay. To determine disengagement azimuth sectors, the system monitors the penetrations of the model of the terrain being flown over into a second protection volume with large azimuth aperture, linked to the aircraft and configured so as to contain the limit-point protection volume and, for the various azimuths covered, paths of a composite maneuver beginning with change-of-heading maneuvers with which to reach the azimuth concerned and continuing with the standard terrain vertical avoidance maneuver.
摘要:
The invention relates to a monitoring device and method allowing surveillance of an aircraft in relation to aircraft and/or craft on an airport displacement zone. The invention is a system comprising a dedicated transmitter and receiver to receive the information regarding the location and displacement of the cooperative aircraft and to monitor the location of the said aircraft in relation to the cooperative aircraft. The monitoring application is based on the detection of conflict zones by inter-correlation of constraint surfaces of the airport zone. The invention applies to aircraft carrying communication moans for ADS-B networks for an airport zone monitoring application.