Abstract: Described herein is a visual indication system implemented on a mobile machine. The visual indication system at least partially surrounds the mobile machine and includes a plurality of displayable regions. Objects surrounding the mobile machine are detected using an object detection sensor. A direction with respect to the mobile machine is detected for each of the objects. A current state of the mobile machine is determined. An object-directed indicator for each of the objects is generated based on the current state of the mobile machine. The object-directed indicator for each of the objects is displayed on the visual indication system at a particular displayable region based on the direction of the particular object.

Abstract: A method of forming a stochastic structure, the method comprising the steps: selecting a parent structure, the parent structure defining an array of unit cells, initially the array of unit cells is uniform, defining each unit cell of the array of unit cells a size, a geometry, a relative density and at least one node, placing an implicit function of an object or part of an object at each node, wherein the object having parameters to define its position xcn, ycn, zcn, and extent rxn, ryn, and rzn or a shape defined by an equation having at least the parameters x, y and z, randomising any one or more of the parameters by applying a statistical distribution, the statistical distribution having a standard deviation ?, the standard deviation ? controls at least one of the three dimensions where random values of each parameter are created and selecting a value greater than zero of the standard deviation ? to define the degree of randomisation for any one or more of the parameters, thereby creating a randomised arra

Abstract: Described herein is a visual indication system implemented on a mobile machine. The visual indication system at least partially surrounds the mobile machine and includes a plurality of displayable regions. Objects surrounding the mobile machine are detected using an object detection sensor. A direction with respect to the mobile machine is detected for each of the objects. A current state of the mobile machine is determined. An object-directed indicator for each of the objects is generated based on the current state of the mobile machine. The object-directed indicator for each of the objects is displayed on the visual indication system at a particular displayable region based on the direction of the particular object.

Abstract: A receiver system for determining coordinates of a location can include two GNSS receiver antennas positioned in fixed relation to each other and separated by a short baseline. Signals received from the two receiver antennas can be processed to define a “virtual” antenna located at the midpoint between the two receiver antennas. For instance, a location can be determined for each receiver antenna using GNSS-based techniques, and the locations of the two antennas can be used to determine a location of the virtual antenna. As another example, GNSS observables from the two antennas can be combined to provide a set of “virtual” observables for the virtual antenna, and GNSS-based techniques can be applied to the virtual observables to determine a location of the virtual antenna.

Abstract: A device for determining coordinates of a location can include two GNSS receiver antennas positioned in fixed relation to each other and separated by a short baseline. Signals received from the two receiver antennas can be processed to estimate a degree to a multipath effect may be impairing reliability of observables extracted from the received signals. Where both antennas observe signals at the same carrier frequency from the same satellite, each antenna can determine a carrier phase, and a single-difference carrier phase (SDCP) can be computed and used to estimate multipath effects. Where both antennas observe signals at two (or more) carrier frequencies from the same satellite, a “geometry-free” SDCP can be computed and used to estimate multipath effects. Observations of different satellites can be weighted based on the estimated multipath effects.

Abstract: Disclosed are a method and apparatus are provided for determining the amount of obstruction of a view of a satellite. An estimated satellite location from a satellite signal is mapped to a matrix of obstructions. A window is determined around the satellite location and all the obstructions within the window are considered in determining whether the satellite is obstructed, with the window considering the degree of possible error within the various measurements. In embodiments, the window size if varied based on the estimated amount of error and location of the satellite within the matrix.

Abstract: A method for the removal of debris (75) from an aperture (60), the aperture comprising a first aperture diameter (64) and extending along a first axis (62) over a first distance (63), the method comprising the steps of aligning a beam of energy (80) with the first axis such that the beam of energy is coaxially aligned with the aperture, the beam of energy comprising both an energy sufficient to remove the debris, and a first beam diameter (82) which is less than the first aperture diameter; and, exposing the debris to the beam of energy in order to remove the debris from the aperture.

Abstract: Construction vehicles using a teach and repeat system can ascertain boundaries of a task area while working, without knowing a perimeter of the task area before starting the task. The system maps a first path of the vehicle by recording a position of a vehicle moving from a first start position to a first end position. A second path is predicted, based on a shape of the first path, the second path having a second start position and a second end position. A third path is mapped from a third start position to a third end position. Boundaries of the task area are ascertained based on the first path, the first start position, the second start position, the third start position, the third path, the first end position, the second end position, and the third end position.

Abstract: An electrical-discharge machining tool comprising a ground electrode, a moveable and activatable assistive electrode and a cutting electrode, a first conduit for supplying a dielectric and a second conduit for flushing dielectric material, wherein when used on a dielectric layer on a substrate the assistive electrode is activated and positioned substantially between the ground electrode and the cutting electrode.

Abstract: A repair system for in-situ repair of a machine. The repair system includes a laser unit configured to emit a laser beam, a galvanometer optically coupled to the laser unit and configured to adjust the laser beam received from the laser unit, a source of a flexible metallic mesh, a delivery unit configured to receive the flexible metallic mesh from the source of the flexible metallic mesh, and a controller communicably coupled to the laser unit, the galvanometer, and the delivery unit. The controller is configured to control the delivery unit to deposit the flexible metallic mesh on a surface of the machine. The controller is further configured to control the laser unit to emit the laser beam and to control the galvanometer to adjust the laser beam in order to weld the flexible metallic mesh to the surface of the machine, thereby forming a repair patch.

Abstract: A method for the removal of debris (75) from an aperture (60), the aperture comprising a first aperture diameter (64) and extending along a first axis (62) over a first distance (63), the method comprising the steps of aligning a beam of energy (80) with the first axis such that the beam of energy is coaxially aligned with the aperture, the beam of energy comprising both an energy sufficient to remove the debris, and a first beam diameter (82) which is less than the first aperture diameter; and, exposing the debris to the beam of energy in order to remove the debris from the aperture.

Abstract: An electro-discharge machining (EDM) device that includes a housing, an erosion electrode, a ground electrode, and a dielectric inlet. The housing is configured to be positioned on a surface of a workpiece and proximal to a fastener to be eroded. The planar erosion electrode is positioned at least partially within the housing, with the erosion electrode being movable relative to the housing in a first axis. The first axis is substantially normal to a longitudinal axis of the fastener. The ground electrode is conductively connected to the fastener. The dielectric inlet is configured to deliver a dielectric fluid to a region between the erosion electrode and the fastener.

Abstract: Described herein is a visual indication system implemented on a mobile machine. The visual indication system at least partially surrounds the mobile machine and includes a plurality of displayable regions. Objects surrounding the mobile machine are detected using an object detection sensor. A direction with respect to the mobile machine is detected for each of the objects. A current state of the mobile machine is determined. An object-directed indicator for each of the objects is generated based on the current state of the mobile machine. The object-directed indicator for each of the objects is displayed on the visual indication system at a particular displayable region based on the direction of the particular object.

Abstract: A dielectric gel for use in electro-discharge machining. Aspects of the dielectric gel include a liquid solvent phase entrapped in a three-dimensionally cross-linked fibre network.

Abstract: Various embodiments provide novel tools and techniques for photogrammetric machine measure-up, including without limitation solutions that can be used for excavation and similar applications. A system includes a machine, a user device may further comprise an image sensor, an accelerometer, a processor, and a computer readable medium in communication with the processor, the computer readable medium having encoded thereon a set of instructions executable by the processor to photogrammetrically measure-up the machine. Photogrammetric measure-up includes capturing, via the image sensor, two or more target images of each of the two or more targets, the two or more target images including a first target image and a second target image, and determining a measurement between two of the two or more reference features of the machine based on a first target image and second target image.

Abstract: A method of additive manufacturing is disclosed, comprising using a powder comprising a first particulate component (1) with a first mean particle diameter, and a second particulate component (2) with a second mean particle diameter. The first mean particle diameter is at least twice the second mean particle diameter. The particles (2) of the second component are bonded to the particles (1) of the first component, and the first and second components comprise different materials. The powder is deposited.

Abstract: An electro-discharge machining (EDM) device comprises a housing, an erosion electrode, a ground electrode, and a dielectric inlet. The housing is configured to be positioned on a surface of a workpiece and proximal to a fastener to be eroded. The planar erosion electrode is positioned at least partially within the housing, with the erosion electrode being movable relative to the housing in a first axis. The first axis is substantially normal to a longitudinal axis of the fastener. The ground electrode is conductively connected to the fastener. The dielectric inlet is configured to deliver a dielectric fluid to a region between the erosion electrode and the fastener.

Abstract: A method of additive manufacturing is disclosed, comprising using a powder comprising a first particulate component (1) with a first mean particle diameter, and a second particulate component (2) with a second mean particle diameter. The first mean particle diameter is at least twice the second mean particle diameter. The particles (2) of the second component are bonded to the particles (1) of the first component, and the first and second components comprise different materials. The powder is deposited.