摘要:
A guidance system is provided for a vehicle or aircraft. The system comprises optical emitting means for emitting at least one optical beam therefrom in use. The optical emitting means are provided on or associated with one of a first vehicle/aircraft or at a first locality. The first locality is different, separate, independent and/or remote to the first vehicle /aircraft. Optical receiving means are provided for receiving said at least one optical beam in use. The optical receiving means are provided on or associated with the other of the first vehicle/ aircraft or first locality. Processing means are provided on or associated with the optical receiving means for sensing and/or calculating an intensity of said at least one received optical beam and/or an incident angle of said at least one received optical beam to allow positional and/or orientation information of the vehicle/ aircraft with respect to the first locality to be calculated.
摘要:
Disclosed are various approaches for determining positions of a navigation unit and correcting for errors. The navigation unit can receive a guided surface wave using a guided surface wave receive structure. The navigation unit can then determine a potential location of the guided surface wave receive structure. Finally, the navigation unit can determine an accuracy of the potential location based at least in part on a secondary data source.
摘要:
Optical positional tracking systems that may be used in virtual reality (VR) / augmented reality (AR) applications are described. Exemplary implementations comprise one or more receivers and one or more transmitters. Exemplary transmitters contains two orthogonal rotors that each emit a fan- shaped laser beam. Each beam is swept as the rotors are spun at constant speed. Exemplary optical receivers can be relatively small, and mounted at convenient locations on the VR display. These receivers consist of small optical detectors that may be mounted on head-mounted VR displays. Exemplary systems determine position by measuring the time at which each swept beam crosses each receiver/detector.
摘要:
The invention relates to an apparatus (2) for processing floor areas (1), in particular for processing riding arenas, having at least one processing tool (4) that can be raised and lowered by power lifters, such as a grader blade, and having a control unit (14) comprising at least two transmitter units (8) to be supported on the floor area for generating laser beams (9), and a receiver unit (6) supported on the apparatus (2) and receiving the laser beams (9) from the transmitter units (8) as measured values, via which control unit (14) the power lifters and the processing tool (4) can be raised and lowered under control on the basis of the measured values from the receiver unit (6). In order to be able to establish vertical levels reproducibly and in an automated manner, in particular on riding arenas (1) and riding tracks, the receiver unit (6) according to the invention has, on the circumference thereof, at least two CCD or LED strip elements (7) arranged at a distance from one another and oriented vertically and having a multiplicity of light detectors (7.1) arranged one above another and, on the circumference thereof, at least two CCD or LED strip elements (10) arranged at a distance from one another and oriented horizontally and having a multiplicity of light detectors arranged beside one another.
摘要:
Ein Trackingverfahren bestimmt die Position 55 einer mobilen Messstation 6 relativ zu einer Basisstation 5 in einem Innenraum. Das Trackingsystem 1 hat eine Basisstation 5 und eine mobile Messstation 6. Die Position der Messstation 6 wird relativ zu der Basisstation 5 bestimmt. Die Basisstation 5 schwenkt oder dreht ein Bündel mit wenigstens einem Lichtstrahl 40 um wenigstens eine Achse 29 der Basisstation 5 in sich gemäß einem vorgegebenen Ablauf ändernde Emissionsrichtungen 41 zum Erzeugen eines wandernden Musters aus Lichtpunkten 8 auf einer Wand 3 des Innenraums. Eine Kamera 17 der mobilen Messstation 6 zeichnet eine Serie von Bildern 9 der Wand 3 des Innenraums unter gleichbleibender Blickrichtung 18 auf, wobei in der Serie auf wenigstens drei unterschiedlichen Bildpunkten P1, P2, P3 einer der wandernden Lichtpunkte 8 abgebildet ist. Die Bildkoordinaten x1,y1; x2,y2; x3,y3 der wenigstens drei unterschiedlichen Bildpunkte P1, P2, P3 werden bestimmt. Die wenigstens drei Emissionsrichtungen 41 der Lichtstrahlen 40, deren Lichtpunkte 8 zu einem Zeitpunkt in einem der Bilder 9 auf einen der wenigstens drei unterschiedlichen Bildpunkte P1, P2, P3 abgebildet sind, werden basierend auf den Zeitpunkten, an welchen das jeweilige Bild 9 aufgezeichnet ist, ermittelt. Die wenigstens drei Abstände d1, d2, d3 der Achse 29 der Basisstation 5 zu der Wand 3 in den wenigstens drei Emissionsrichtungen 41 wird basierend auf in einer Referenz-Datenbank 52 hinterlegten Abstandsmessungen zu der Wand 3 in von der Basisstation 5 ausgehenden Messrichtungen 44 ermittelt. Die Position 55 der mobilen Messstation 6 wird basierend auf den Bildkoordinaten x1,y1; x2,y2; x3,y3 der wenigstens drei Bildpunkte P1, P2, P3, der den Bildpunkten P1, P2, P3 zugehörigen Emissionsrichtungen 41 und den jeweiligen Abständen d1, d2, d3 der Basisstation 5 zu der Wand 3 in den zugehörigen Emissionsrichtungen 41 ermittelt.
摘要:
Multiple panel luminaires for light-based communication (LCom) and related techniques of use are disclosed. Each luminaire panel may comprise at least one solid-state light source, where the light sources are configured to output light. The luminaire may include at least one modulator configured to modulate the light output of the light sources to allow for emission of LCom signals. The luminaire may also include a controller configured to synchronize timing of the LCom signals. In some cases, one panel may be configured to emit an LCom signal that is the inverse or duplicate of the LCom signal emitted from another panel. Panel signal inversion may be used to maintain a relatively constant level of light output from the luminaire and/or to create a virtual fiducial to provide orientation information. Using a multiple panel luminaire to transmit data may result in improved data transmission rates and transmission reliability.
摘要:
Techniques are disclosed for determining a light-based communication (LCom) receiver position. The techniques can be used to determine the position of a receiver relative to a specific luminaire within the field of view (FOV) of the receiver camera. The relative position may be calculated by determining the distance and the orientation of the receiver relative to the luminaire. The distance relative to the luminaire may be calculated using the observed size of the luminaire in an image generated by the receiver camera, the image zoom factor, and actual geometry of the luminaire. The orientation relative to the luminaire may be determined using a fiducial associated with the luminaire that can be used as an orientation cue. Once the position of a receiver relative to a luminaire is determined, the absolute position of the receiver may be calculated using the absolute position of the luminaire.
摘要:
A system including a luminaire lens including a surface having a coded positional data pattern, a mobile communication device including a camera and a display screen, a database having data records representing a floor plan of a building or structure, the mobile communication device in communication with the database, and a mobile communication device application, the application configured to decode the coded positional data pattern and to locate the decoded positional data on the floor plan, wherein the decoded positional data is displayed on the display screen. A method includes providing a luminaire lens having a coded positional data pattern, decoding the positional data, locating the decoded positional data on the floor plan, and displaying the decoded positional data on a display screen. A non-transitory medium having executable instructions is also described.
摘要:
The present invention concerns a landing and/or docking system for aerial vehicles, comprising two infrared emitters, respectively a position emitter (10), and an axis emitter (11), located on a landing surface and able to transmit respectively at a first frequency fl and at a second frequency f2; and at least three sensors (12, 13, 14, 15) each positioned in a respective sector of a plan of an aerial vehicle (16), each of said at least three sensors (12, 13, 14, 15) being capable of detecting the signals transmitted by said position emitter (10) and by said axis emitter (11); the system further comprising a module capable of controlling the movement of the aerial vehicle (16) based on the intensity of the infrared signals detected by said at least three sensors (12). The invention additionaly concerns a landing and/or docking method for aerial vehicle, using said system, and a relative landing and/or docking device for aerial vehicles and an aerial vehicle comprising said device.