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Surveying and target tracking by a network of survey devices

  • US 9,518,822 B2
  • Filed: 09/24/2013
  • Issued: 12/13/2016
  • Est. Priority Date: 09/24/2013
  • Status: Active Grant
First Claim
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1. A survey device comprising:

  • a dual-axis position encoder;

    a video camera coupled with the dual-axis position encoder;

    a laser rangefinder coupled with the dual-axis position encoder;

    a processor in data communication with the dual-axis position encoder, the video camera, and the laser rangefinder;

    a wireless transceiver in data communication with the processor; and

    a non-transitory computer readable storage medium in data communication with the processor, wherein the non-transitory computer readable storage medium includes instructions that, when executed by the processor, causes the processor operations including;

    orienting, without input from a user or an external device, the video camera using the dual-axis position encoder to scan a plurality of locations within a line-of-sight and field of view of the video camera;

    identifying, without input from the user or the external device, a first additional survey device present within a line-of-sight and field-of-view of the video camera, wherein identifying the first additional survey device includes detecting an optical signal from the first additional survey device;

    determining a first location of the first additional survey device, wherein determining the first location includes identifying one or more angles of the dual-axis position encoder corresponding to identification of the first additional survey device;

    operating the laser rangefinder to determine a first distance to the first additional survey device;

    determining first coordinates of the first additional survey device, wherein determining the first coordinates includes using the first location and the first distance;

    wirelessly transmitting, using the wireless transceiver, the first coordinates;

    identifying, without input from the user or the external device, a target present with the line-of-sight and field of view of the video camera, wherein identifying the target includes detecting an optical signal from the target;

    determining, a second location of the target, wherein determining the second location includes identifying one or more angles of the dual-axis position encoder corresponding to identification of the target;

    operating the laser rangefinder to determine a second distance to the target;

    determining second coordinates of the target, wherein determining the second coordinates includes using the second location and the second distance; and

    wirelessly transmitting, using the wireless transceiver, the second coordinates.

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