Aircraft identification and docking guidance systems
DCFirst Claim
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1. A system for verifying the shape of a detected object comprising:
- means for projecting light pulses in angular coordinates onto an object;
means for collecting light pulses reflected off said object and for determining the detected shape of said object;
means for comparing said detected shape with a profile corresponding to the shape of a known object and for determining whether said detected shape corresponds to said known shape;
means for directing said projected light pulses onto a calibration element positioned in a known angular direction and at a known distance from saidmeans for directing said projected light for purposes of calibration of said system; and
wherein the means for directing said projected light comprises a second mirror system.
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Abstract
A system for detecting, identifying and docking aircraft using laser pulses to obtain a profile of an object in the distance. The system initially scans the area in front of the gate until it locates and identifies an object. Once the identity of the object is known, the system tracks the object. By using the information from the profile, the system can in real time display the type of airplane, the distance from the stopping point and the lateral position of the airplane.
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Citations
23 Claims
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1. A system for verifying the shape of a detected object comprising:
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means for projecting light pulses in angular coordinates onto an object; means for collecting light pulses reflected off said object and for determining the detected shape of said object; means for comparing said detected shape with a profile corresponding to the shape of a known object and for determining whether said detected shape corresponds to said known shape; means for directing said projected light pulses onto a calibration element positioned in a known angular direction and at a known distance from said means for directing said projected light for purposes of calibration of said system; and wherein the means for directing said projected light comprises a second mirror system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for tracking an incoming object comprising:
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means for generating light pulses; means for projecting said pulses outwardly onto an incoming object and for reflecting said light pulses off said object; means for collecting the light pulses reflected off of said object; means for detecting the position relative to an imaginary axial line projecting from a predetermined point and for detecting the distance between said object and said predetermined point whereby tracking of the location of said object is enabled;
whereina comparison table is generated reflecting information about the laser scan and is compared with a profile table indicating the shape of known objects; a distance distribution table is generated recording the distribution of distances from the nose of the object to the measuring device for each reflected pulse; and an average distance to a desired stopping position is calculated. - View Dependent Claims (15, 16, 17)
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18. An aircraft identification and docking guidance system for verifying the shape of a detected aircraft comprising:
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an adjustable, non-rotary mirror assembly including a first mirror for continuously projecting laser light pulses outwardly in horizontal planar angular coordinates onto an aircraft and a second mirror for continuously projecting laser light pulses outwardly in vertical planar angular coordinates onto said aircraft; means for collecting light pulses reflected off said aircraft and for determining the detected shape of said aircraft; and means for comparing said detected shape with a profile corresponding to the shape of a known aircraft and for determining whether said detected shape corresponds to said known shape. - View Dependent Claims (19, 20)
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21. A method for verifying the shape of a detected object comprising:
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projecting light pulses in angular coordinates onto an object; reflecting said pulses back to a detector and determining the detected shape of the object based on said reflected pulses; comparing said detected shape with a profile corresponding to the shape of a known object; determining whether said detected shape corresponds to said known shape; comparing said detected shape with a profile corresponding to the shape of a known object and for determining whether said detected shape corresponds to said known shape; directing said projected light pulses onto a calibration element positioned in a known angular direction and at a known distance from said means for directing said projected light for purposes of calibration of said system; and wherein means for directing said projected light comprises a second mirror system. - View Dependent Claims (22, 23)
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Specification