Abstract:
Self-contained, remotely operated, mobile measurement and inspection systems for stand-off inspection of large target objects located at sites distant from an operations center. The systems comprise a mobile platform with on-board instrumentation capable of making dimensional measurements in the local coordinate system of the target object. The systems comprise multiple hardware and software components networked to a control interface that enables the operator at the operations center to teleoperate the equipment. Various embodiments include rough-terrain and floatable mobile measurement and inspection systems.
Abstract:
Methods for identifying parts of a target object (e.g., an airplane) using geotagged photographs captured on site by a hand-held imaging device. The geotagged photographs contain GPS location data and camera setting information. The embedded image metadata from two or more photographs is used to estimate the location (i.e., position and orientation) of the imaging device relative to the target object, which location is defined in the coordinate system of the target object. Once the coordinates of the area of interest on the target object are known, the part number and other information associated with the part can be determined when the imaging device viewpoint information is provided to a three-dimensional visualization environment that has access to three-dimensional models of the target object.
Abstract:
Systems and methods that enable the synchronized display of both “as-built” and “as-designed” representations and automated data updates of a target object of interest (e.g., specific line number aircraft). More specifically, the process allows users to display a panoramic image captured for a reference environment, and then display a visualization of the corresponding 3-D model at the same viewpoint. Interprocess communication between a panoramic image viewer application and a 3-D model visualization application provides the ability to synchronize viewpoints, fields-of-view and other display features.
Abstract:
A method for electronically pairing a plurality of control units with a plurality of objects in an aircraft is provided. The method includes identifying a selected control unit from the plurality of control units that will control a selected object from the plurality of objects, placing a hand-held scanner in close proximity to a first machine-readable tag on the selected control unit to acquire a first unique ID for only the selected control unit, placing the hand-held scanner in close proximity to a second machine-readable tag on the selected object to acquire a second unique ID for only the selected object, and associating the first unique ID with the second unique ID to pair the selected control unit with the selected object.
Abstract:
An improved mechanism for calibrating a local positioning system through the use of passive or retro-reflective markers is described herein. A plurality of imaging targets with the passive or retro-reflective markers may be attached or affixed on a surface of an object. The local positioning system may then capture a first image of the imaging targets in a non-illuminated state and further capture a second image of the imaging targets in an illuminated state. A difference image between the first and second captured images may be computed and then segmented. The local positioning system may then identify the plurality of imaging targets based on the segmented difference image and position itself to extract information. The extracted information may then be used to help calibrate the local positioning system.
Abstract:
A system comprising a multi-functional boom subsystem integrated with a holonomic-motion boom base platform. The boom base platform may comprise: Mecanum wheels with independently controlled motors; a pair of sub-platforms coupled by a roll-axis pivot to maintain four-wheel contact with the ground surface; and twist reduction mechanisms to minimize any yaw-axis twisting torque exerted on the roll-axis pivot. A computer with motion control software may be embedded on the boom base platform. The motion control function can be integrated with a real-time tracking system. The motion control computer may have multiple platform motion control modes: (1) a path following mode in which the boom base platform matches the motion path of the surface crawler (i.e., integration with crawler control); (2) a reactive mode in which the boom base platform moves based on the pan and tilt angles of the boom arm; and (3) a collision avoidance mode using sensors distributed around the perimeter of the boom base platform to detect obstacles.
Abstract:
Method and apparatus for enabling ultrasonic inspection of a changing, insufficiently defined or unknown shape (e.g., a variable radius or a noncircular radius caused by the use of soft tooling) at a rate that meets production requirements. The apparatus comprises a linear ultrasonic array (i.e., sensor) incorporated in a toppler, which in turn is slidably supported by an oscillating sensor mechanism carried by a traveling trailer vehicle. As a result of this arrangement, the sensor can undergo a back-and-forth sweeping motion coupled with motion along the spar radius. The sensor is further able to displace radially relative to a sweep pivot axis and rotate (hereinafter “topple”) about a topple pivot axis. In this manner, the orientation of the sensor can adjust to the contour of the inspected surface as the sensor scans.
Abstract:
An apparatus and method for attaching a crawler vehicle to the surface of an object. The crawler vehicle may comprise a frame, a number of moveable surface-engaging components attached to the frame, a number of actuators, and an electro-permanent magnet. The number of actuators is operable to move the frame with respect to the object when the number of moveable surface-engaging components is in contact with the surface of the object. The electro-permanent magnet is operable to hold the number of moveable surface-engaging components in contact with the surface of the object by a magnetic force between the electro-permanent magnet and the object when the electro-permanent magnet is activated and to remove the magnetic force when the electro-permanent magnet is deactivated to release the number of moveable surface-engaging components from the surface of the object.
Abstract:
A method and apparatus comprising an energy source, a position system, and a movement system. The energy source is configured to generate a beam of energy directed at an area on a target for a vehicle. The position system is configured to identify a first position of the area on the target at which the beam of energy is directed. The movement system is configured to move the vehicle in a manner that reduces a difference between the first position of the area on the target at which the beam of energy is directed and a reference position on the target.
Abstract:
A system is disclosed comprising a tractor vehicle, at least one trailer vehicle and a skin between and in contact with the tractor and trailer vehicles. One of the tractor and trailer vehicles is disposed in a non-inverted position above the skin and the other is disposed in an inverted position below the skin. The trailer vehicle comprises one or more magnets, while the tractor vehicle comprises one or more magnets magnetically coupled to each opposing magnet on the trailer vehicle. For example, the tractor and trailer vehicles may have mutually opposing permanent magnets in one-to-one relationship. Alternatively, each permanent magnet on the trailer vehicle could be opposed by one or more electro-permanent magnets on the tractor vehicle. The magnetic coupling between the magnets on the tractor and trailer vehicles produces an attraction force. The system further comprises means for maintaining the attraction force within a range as the tractor and trailer vehicles move along a portion of the skin having a varying thickness.