摘要:
Systems and methods for producing an advisory if barometric altitude transition setting needs adjusting in an aircraft. In one embodiment, the method determines transition altitude, receives an uncorrected altitude, compares the uncorrected altitude to the transition altitude and to corrected altitude, and outputs a barometric altitude transition setting advisory based on the comparison between the uncorrected altitude and the transition altitude. The comparison determines if the uncorrected altitude is greater than the determined transition altitude and the advisory is output if the uncorrected altitude is determined to be greater than the transition altitude and the uncorrected altitude differs from the corrected altitude by a threshold amount. A delay is provided between the comparison of the uncorrected altitude to the transition altitude and the comparison between the uncorrected altitude and the corrected altitude.
摘要:
A method, system, and computer program product for using airport information based on the flying environment are provided. When a helicopter is determined to be approaching a runway, ground proximity warning envelopes are automatically reduced to prevent unwanted, or nuisance, terrain alerts. On the other hand, when a helicopter is flown near a runway without intent to land or when a helicopter is taking off, ground proximity warning envelopes may remain unchanged. As a result, nuisance alerts are reduced when a helicopter is approaching a runway for landing and ground proximity warnings may remain in effect to maximize protection when a helicopter is flying near a runway without an intent to land or is taking off from a runway.
摘要:
Systems and methods for alerting a flight crew if a taxiing collision condition exists. An exemplary system on a host vehicle determines one or more first protection zones around other vehicles on the ground based on the received information about the other vehicles, determines a second protection zone around the host vehicle based on the stored information about the host vehicle and the sensor information and generates an alert, if any of the first protection zones occupies at least a portion of the same geographic area as the second protection zone. The received information includes position, ground speed, vehicle type information and heading or track information. The protection zones include a width dimension that is based on vehicle size information, a base length dimension that is based on the size information, and a variable component of the length dimension that is based on the ground speed.
摘要:
Systems and methods for alerting a flight crew if a taxiing collision condition exists. An exemplary system on a host vehicle determines one or more first protection zones around other vehicles on the ground based on the received information about the other vehicles, determines a second protection zone around the host vehicle based on the stored information about the host vehicle and the sensor information and generates an alert, if any of the first protection zones occupies at least a portion of the same geographic area as the second protection zone. The received information includes position, ground speed, vehicle type information and heading or track information. The protection zones include a width dimension that is based on vehicle size information, a base length dimension that is based on the size information, and a variable component of the length dimension that is based on the ground speed.
摘要:
The present invention provides several apparatus, methods, and computer program products for determining a corrected distance between an aircraft and selected runway, such that the corrected distance may be used for ground proximity warning calculations. Specifically, the present invention includes a processor that receives data related to the coordinates of the aircraft and a selected runway. Based on these coordinate values, the processor determines a coordinate distance between the aircraft and selected runway. The processor also compares the altitude of the aircraft to a predetermined glideslope constructed about the runway. Specifically, the processor calculates a distance value that corresponds to the altitude of the aircraft above the runway along the predetermined glideslope. The processor compares the coordinate distance and the calculated distance values and selects either the coordinate distance or the calculated distance value as the corrected distance between the aircraft and the selected runway. For instance, in one embodiment, the processor compares the coordinate and calculated distance values and selects the larger of the values as the corrected distance between the aircraft and the selected runway. The present invention also provides a processor for determining a look ahead distance value for ground proximity warning calculations. The processor of this embodiment, initially determines differing look ahead distance values based on the corrected distance to the runway, ground speed of the aircraft, and the actual roll angle of the aircraft. The processor compares the three look ahead distance values and selects the smallest of the look ahead distance values for use in the ground proximity warning system.
摘要:
A taxiway approach advisory system. The system may include a computer-readable memory containing runway information and a processor in data communication with the memory. The processor may include a component for ascertaining the altitude of an aircraft, a component for ascertaining the location of the aircraft, a component for accessing runway information from the memory and determining if the aircraft is within a pre-determined runway envelope based on the altitude and location, and a component for issuing an indication if the aircraft is not within the pre-determined runway envelope.
摘要:
Systems and methods for performing efficient, inexpensive data logging of aircraft sensor data. An example system on board an aircraft includes a plurality of data sources that provide sensor data associated with a plurality of avionic components, a line replaceable processing unit that is in signal communication with the plurality of data sources via one or more databuses, a wireless router connected to the line replaceable processing unit via a data cable and a portable data unit in wireless data communication with the wireless router. The wireless router receives at least a portion of the sensor data from the line replaceable processing unit and sends the received sensor data to the portable data unit.
摘要:
Systems and methods for outputting instructions when a vehicle is not responding to a roll-angle alert. An example system includes one or more altitude sensors that determine one of altitude above ground level or barometric altitude, one or more roll-angle sensors that determine the roll-angle of the vehicle, and a processor. The processor receives the altitude and roll-angle information, determines if an excessive roll-angle condition exists based on the received altitude and roll-angle information, and generates a roll-angle alert signal if a roll-angle alert condition exists. The processor generates a roll-direction signal based upon vehicle position relative to the horizon and outputs the determined roll-direction signal via the one or more output devices, if one of the condition still exists after the time delay, the vehicle roll-angle has deteriorated away from the desired threshold, or the roll-angle rate is greater than a roll-angle rate threshold.
摘要:
The present invention provides several apparatus, methods, and computer program products for determining a look ahead distance value for use in a ground proximity warning system. Specifically, the present invention provides apparatus, methods, and computer program products that generate a candidate look ahead distance value that provides a constant reaction time for varying aircraft speeds. The apparatus of the present invention includes a processor that generates the constant reaction time look ahead distance by multiplying a desired reaction time by the speed of the aircraft. This constant reaction time look ahead distance value is compared by the processor to other candidate look ahead distance values that have variable reaction times for varying aircraft speeds. If the aircraft is traveling at a relatively high speed, the processor of the present invention selects the constant reaction time look ahead distance value for use in the ground proximity warning system. Importantly, because the present invention switches from a variable reaction time look ahead distance value to a constant reaction time look ahead distance value when the aircraft is travelling at higher speeds, the present invention can provide a look ahead distance value that reduces nuisance alarms for lower speeds, while also providing at least a minimum reaction time for higher speeds.
摘要:
An apparatus, method and computer program product for generating and annunciating to a flight crew if they are on or approaching a closed runway. The present invention alerts the pilot to operations on closed runways with appropriate and non-misleading information, thus allowing the pilot to make better decisions.