Trimble Navigation Patent Grants

Method and system for measuring angles based on 360 degree images

Granted: October 9, 2012
Patent Number: 8285512
A surveying apparatus includes a support structure and a reflective surface mechanically coupled to the support structure. The reflective surface is configured to receive panoramic data over a 360° field of view. The surveying apparatus also includes an optical system mechanically coupled to the support structure and optically coupled to the reflective surface. The surveying apparatus further includes an imaging system mechanically coupled to the support structure and optically coupled…

Two dimension layout and point transfer system

Granted: October 9, 2012
Patent Number: 8281495
A two-dimension layout system identifies points and their coordinates, and transfers identified points on a solid surface to other surfaces in a vertical direction. Two leveling laser light transmitters are used with a remote unit to control certain functions. The laser transmitters rotate about the azimuth, and emit vertical (plumb) laser planes. After being set up using benchmark points, the projected lines of the laser planes will intersect on the floor of a jobsite at any point of…

Methods and apparatuses for RFID tag range determination

Granted: October 2, 2012
Patent Number: 8279112
Apparatus and methods are described which are useful for determining a distance between an RFID tag and an RFID tag reader. In various embodiments, signals backscattered from a singulated tag over a range of frequencies are evaluated for in-phase I and in-quadrature Q signal components. The I-Q data is processed to determine phase delay angles associated with each signal frequency. The phase delay data can be processed by a sum of squared errors method or Fourier transform method to…

Method and system for configuring wireless communication of survey sensors and controllers

Granted: September 25, 2012
Patent Number: 8274913
A method and system for configuring wireless communication of survey sensors and controllers is recited. In one embodiment, a survey device controller is configured to receive a first wireless communication comprising a sequence indicating that a survey device is configured to participate in an automatic configuration process with the survey device controller. The system further comprises the survey device which is configured to generate a second wireless communication indicating the…

Agricultural vehicle autopilot rollover risk assessment system

Granted: September 25, 2012
Patent Number: 8275516
A rollover risk assessment system includes sensors and a processor for estimating rollover risk associated with maneuvering on varying terrain.

Planter assembly with selectively actuated output

Granted: September 25, 2012
Patent Number: 8275526
An actuating system for a planting device. The actuating system has an electric motor that provides an actuating force for a seed shaft. A pneumatic acting member is connected to a source of compressed air through a valve and positioned to engage the electric motor to actuate the electric motor. The source of compressed air and electric motor can thus be connected to a controller that operates the source of compressed air and the electric motor in order to provide selective actuation to…

Method and apparatus for configuring a survey controller

Granted: September 11, 2012
Patent Number: 8261969
Method and apparatus for configuring a controller for surveying equipment. In one embodiment, an identification tag associated with a surveying tool may be detected by a controller. An indicator related to the identification tag may be presented to a user of the controller. According to another embodiment, operation of the controller may be configured based, at least in part, on the identification tag.

Double-nudged broadcast orbit drift correction

Granted: September 11, 2012
Patent Number: 8264404
A method in a Global Navigation Satellite System (GNSS) receiver for double-nudged broadcast orbit drift correction. A first broadcast orbit message is utilized to nudge a broadcast orbit in use at the GNSS receiver to create a first nudged broadcast orbit for a GNSS satellite, the first nudged broadcast orbit being more precise than the broadcast orbit. A second broadcast orbit message is utilized to nudge the first nudged broadcast orbit in use at the GNSS receiver to create a…

Method for locating coverage gaps in wireless communication services

Granted: September 4, 2012
Patent Number: 8260322
A method for determining coverage gaps within a geographical area served by a wireless communication network includes: (a) receiving a location report from each of a plurality of mobile units; (b) storing all location reports received from the mobile units in a database; and (c) searching the database for a position within the geographical area at which an acceptable quality wireless signal has not been received. The location report may include a measured signal quality metric of the…

System and method for refining a position estimate of a low earth orbiting satellite

Granted: September 4, 2012
Patent Number: 8260551
In a method for refining a position estimate of a low earth orbiting (LEO) satellite a first position estimate of a LEO satellite is obtained with a GNSS receiver on-board the LEO satellite. The first position estimate is communicated to a Virtual Reference Station (VRS) processor. VRS corrections are received at the LEO satellite, the VRS corrections having been calculated for the first position estimate by the VRS processor. The VRS corrections are processed on-board the LEO satellite…

System and method for providing asset management information to a customer

Granted: August 28, 2012
Patent Number: 8255358
A system and method for providing asset management information to a customer is disclosed. The method receives information from a first reporting source about an asset. In addition, information from a second reporting source about an asset is also received. A database is then populated with the information from the first reporting source and the information from the second reporting source such that information from the first reporting source and information from the second reporting…

Outlier detection by cross-comparison of different position solution types

Granted: August 14, 2012
Patent Number: 8242955
Embodiments provided herein recite methods and systems for an accuracy estimator for a position fix. In one embodiment, a solution receiver for receiving a code solution and at least one additional solution from a different solution technique is utilized. In addition, a table of metric values comprising an associated accuracy estimate for at least one characteristic of each of the code solution and the at least one additional solution is also utilized. A comparator compares the code…

GNSS position coasting

Granted: August 7, 2012
Patent Number: 8237609
Methods and apparatus are presented for determining a position of an antenna of a GNSS rover from observations of GNSS signals collected at the antenna over multiple epochs and from correction data for at least one of the epochs. A first-epoch rover position relative to a base location is determined for a first epoch using a single-differencing process based on one of (i) fixed carrier-phase ambiguities and (ii) a weighted average of carrier-phase ambiguity candidates which is converged…

Laser transmitter and method

Granted: August 7, 2012
Patent Number: 8238008
A laser transmitter projects a beam of laser light outward while raising and lowering the beam. The beam may define a conical surface of varying inclination. The transmitter includes a laser source that directs a beam generally vertically, and a beam diverting element. The beam diverting element is positioned in the path of the beam, intercepting the beam and redirecting it. The beam emerges from the transmitter as a non-vertical beam that is raised and lowered. The diverting element may…

Method and system for automatically directing traffic on a site

Granted: August 7, 2012
Patent Number: 8239125
In a method for automatically directing traffic on a site, information is received regarding a plurality of selected entities on the job site. An indication of a first priority assigned to a first of the plurality of selected entities is received. An indication of a second priority assigned to a second of the plurality of selected entities is received. It is then determined that the first of the plurality of selected entities has a right of way over the second of the plurality of…

Hand-held survey data collector

Granted: July 31, 2012
Patent Number: D664543

Tilt compensation for GNSS antenna

Granted: July 31, 2012
Patent Number: 8232916
A method and system of improving Global Navigation Satellite System (GNSS) results by compensating for antenna tilt in determining the location of the GNSS receiver is disclosed. In general, the angle of tilt of the antenna is determined. The actual elevation of a satellite is determined. The effective elevation of the satellite relative to the antenna is then calculated.

Post-mission high accuracy position and orientation system

Granted: July 31, 2012
Patent Number: 8232917
A method of generating post-mission position and orientation data comprises generating position and orientation data representing positions and orientations of a mobile platform, based on global navigation satellite system (GNSS) data and inertial navigation system (INS) data acquired during a data acquisition period by the mobile platform, using a network real-time kinematic (RTK) subsystem to generate correction data associated with the data acquisition period, and correcting the…

Image-based tracking

Granted: July 24, 2012
Patent Number: 8229166
A method of image-tracking by using an image capturing device. The method comprises: performing an image-capture of a scene by using an image capturing device; and tracking movement of the image capturing device by analyzing a set of images by using an image processing algorithm.

Method and system for logging position data

Granted: July 17, 2012
Patent Number: 8223068
According to embodiments, a method of logging position data is provided. An indication of a desired accuracy value for determining a geographic position is received. A geographic position is then received. A predicted post-processed accuracy value for the received geographic position is then calculated. The desired accuracy value is then compared with the predicted post-processed accuracy value for the received geographic position. When the predicted post-processed accuracy value for the…