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US 2018/0321386 A1Published application
Light detection and ranging (lidar) ice detection system
AssigneeThe Boeing Company
InventorsCris K. Bosetti, John J. Biel-Goebel, Michael C. Cates, W. Brendan Blanton, Bernard P. Paul, JR., Ken L. Bernier
Life of this patent
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Abstract
A Light Detecting and Ranging (LIDAR) based system detecting and quantifying ice accretions and shedding on an aircraft. This system can be used to detect ice, operate ice protection systems, and satisfy aircraft icing certification requirements. This system can also be used to determine the shape, thickness, type, and location of the ice accretions.
Claims20
A detector, comprising:
- one or more Light Detection and Ranging (LIDAR) devices on an aircraft, each of the LIDAR devices including a transmitter and a receiver, wherein:
- each of the transmitters repetitively scan an aerodynamic surface on the aircraft using laser pulses, forming scattered laser pulses scattered from the aerodynamic surface,
- each of the receivers receive the scattered laser pulses and output data comprising timing of the scattered laser pulses received in the receiver, and
- temporal changes in coordinates of the aerodynamic surface, indicating a presence or absence of ice on the aerodynamic surface, are calculated from the output data.
1 more element
A method for detecting accumulation or shedding of ice from aerodynamic surfaces on an aircraft, comprising:
- providing one or more Light Detection and Ranging (LIDAR) devices on an aircraft, each of the LIDAR devices including a transmitter and a receiver;
- repetitively scanning one or more aerodynamic surfaces on the aircraft using laser pulses transmitted from one or more of the transmitters, forming scattered laser pulses scattered from the aerodynamic surface,
- receiving the scattered laser pulses in one or more of the receivers;
- outputting data from the receivers comprising timing of the scattered laser pulses received in the receivers, and
- calculating, from the data, temporal changes in coordinates of the aerodynamic surface that indicate accumulation of ice on the aerodynamic surfaces and/or shedding of the ice from the aerodynamic surfaces.
2 more elements
Dependencies are inferred from the claim text.