The Topcon/Sauer Danfoss joint venture, TSD Integrated Systems, claims AutoPave will provide paving grade-control accuracy equal to a robotic total station at about half the cost. AutoPave represents the application of Millimeter GPS to paver controls. Millimeter GPS achieves accuracy of plus or minus .02 feet (about ¼ inch) by adding a laser reference to GPS positioning.
The Topcon/Sauer Danfoss joint venture, TSD Integrated Systems, claims AutoPave will provide paving grade-control accuracy equal to a robotic total station at about half the cost. AutoPave represents the application of Millimeter GPS to paver controls. Millimeter GPS achieves accuracy of plus or minus .02 feet (about ¼ inch) by adding a laser reference to GPS positioning. Topcon’s PZL 1 transmitter emits a patented ‘fan beam’ signal 33 feet high, sweeping a 2,000-foot diameter. A sensor mounted on a mast attached to the toe arm of the paver controls the paver’s grade. Multiple Topcon rovers can work with millimeter accuracy from the same laser.
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