AUTO-LENGTH POLE
    31.
    发明申请
    AUTO-LENGTH POLE 审中-公开

    公开(公告)号:US20200018598A1

    公开(公告)日:2020-01-16

    申请号:US16512573

    申请日:2019-07-16

    Abstract: A surveying pole system comprising a surveying pole including two telescopic sections for providing length adjustability. At a first end of the surveying pole, a pointing tip is disposed for positioning on a target point of the environment. At a second end, a length reference point is disposed. The surveying pole also includes a locking mechanism for locking the length adjustability in respective lock-in positions. Each of the lock-in positions provides a corresponding distance between the pointing tip and the length reference point. A plurality of coded identifiers have a predetermined code associated with one of the lock-in positions. The surveying pole also includes a coded-identifier reader for reading the code of a respective coded identifier associated with the respective lock-in position, a communication device configured for transmitting a signal to a surveying instrument, wherein the signal is based at least on the read code.

    Wireless apparatus
    32.
    发明授权

    公开(公告)号:US10536830B2

    公开(公告)日:2020-01-14

    申请号:US16302275

    申请日:2017-05-10

    Abstract: A wireless apparatus mountable to a vehicle includes a transmission function unit, a detector, an acquirer, and a controller. The detector detects a startup of the vehicle. The acquirer acquires start position information of the vehicle at a start timing at which the detector detects the startup of the vehicle. The controller examines whether a start position indicated by the start position information is within a designated region, and determines whether to activate the transmission function unit based on the examination result. Alternatively, the detector detects an operation end of the vehicle, and a startup subsequent to the operation end. The acquirer acquires position information of the vehicle at timings of detecting the operation end and the startup of the vehicle. The controller discriminates whether the distance between the positions indicated by the two pieces of the position information is greater than a threshold, and determines whether to activate the transmission function unit based on the discrimination result.

    Dead reckoning-augmented GPS for tracked vehicles

    公开(公告)号:US10408946B2

    公开(公告)日:2019-09-10

    申请号:US15031179

    申请日:2014-10-21

    Abstract: The invention relates to an apparatus and method for augmenting the 3 dimensional position information obtained from the NAVSTAR satellite-based global positioning system (“GPS”) system. Such systems can be impacted by physical obstacles that prevent the receipt of the satellite signals or as a result of sun spot activity that introduces noise into the signals thus causing them to become intermittently unavailable and/or making them less accurate in the course of normal operation. Therefore, an improved positioning solution that can operate under such poor GPS operational conditions is needed. The apparatus and method of the invention augments GPS with dead reckoning techniques when GPS signals are unavailable or inaccurate. The apparatus and method of the invention demonstrates highest value when applied to blasthole drill positioning applications in open-pit mines.

    DEAD RECKONING-AUGMENTED GPS FOR TRACKED VEHICLES

    公开(公告)号:US20190271787A1

    公开(公告)日:2019-09-05

    申请号:US16413914

    申请日:2019-05-16

    Abstract: The invention relates to an apparatus and method for augmenting the 3 dimensional position information obtained from the NAVSTAR satellite-based global positioning system (“GPS”) system. Such systems can be impacted by physical obstacles that prevent the receipt of the satellite signals or as a result of sun spot activity that introduces noise into the signals thus causing them to become intermittently unavailable and/or making them less accurate in the course of normal operation. Therefore, an improved positioning solution that can operate under such poor GPS operational conditions is needed. The apparatus and method of the invention augments GPS with dead reckoning techniques when GPS signals are unavailable or inaccurate. The apparatus and method of the invention demonstrates highest value when applied to blasthole drill positioning applications in open-pit mines

    AVIATION TRANSPONDER
    37.
    发明申请

    公开(公告)号:US20190162841A1

    公开(公告)日:2019-05-30

    申请号:US15828310

    申请日:2017-11-30

    Abstract: An improved aviation transponder is discussed herein. The improved aviation transponder demonstrates improved cohabitation and survivability characteristics, allowing the transponder to be placed near other antennas without causing or receiving interference, and reducing potential damage caused by high-energy electromagnetic fields, such as those experienced near an air traffic control (ATC) or military radar installation. Additionally, a small form factor of the transponder results in a smaller, more compact aircraft that consumes less energy, reduces heat dissipation, and maximizes battery life and/or flight time. The transponder may comply with modular interface standards, and may include a radio configured for transmitting 200-watt signals. Based at least in part on the improved performance, the transponder can be implemented in unmanned aerial vehicles (UAVs), for example.

    GNSS AUTHENTICATION METHOD
    39.
    发明申请

    公开(公告)号:US20190120970A1

    公开(公告)日:2019-04-25

    申请号:US16093746

    申请日:2017-04-25

    Applicant: Fugro N.V.

    Abstract: A method for authentication of GNSS messages by an authentication transmitter apparatus (20) comprising a reference receiver (22), an authentication server (24) and an authentication transmitter (26). The method comprises: receiving, by the reference receiver, a plurality of navigation messages (50) from a plurality of GNSS satellites (10); hashing, by the authentication server, the navigation messages to create a plurality of hashed messages; creating, by the authentication server, a table comprising the plurality of hashed messages; signing, by the authentication server, the table to create a signed table (70) comprising the hashed messages and a cryptographic signature, and transmitting, by the authentication transmitter, the signed table to an authentication receiver apparatus (40).

    Geo-location of jamming signals
    40.
    发明授权

    公开(公告)号:US10254411B2

    公开(公告)日:2019-04-09

    申请号:US14916646

    申请日:2014-09-04

    Abstract: A ground-based source of a jamming signal capable of disrupting a GNSS satellite-based navigation system, for example a GPS jammer, is located with a detector carried by a suitable platform, for example an airborne UAV or missile. The detector, when the platform is at a first location, measures a characteristic of the jamming signal. The platform and its detector are then moved to a chosen second location, from which a further measurement of the jamming signal is made. The measurements made by the detector are then used to determine the location of the source of the jamming signal.

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