专利名称：Spatial positioning system
发明人：Eric Lundberg,Yvan Beliveau,Timothy Pratt申请号：US07/570268申请日：19900817公开号：US05100229A公开日：19920331
摘要：A spatial positioning apparatus providing three-dimensional positioninformation and methods to utilize the position information for improved surveying,construction layout, equipment operations, manufacturing control and autonomousvehicle control is disclosed. The spatial positioning apparatus includes at least three,preferably four, fixed referent stations. A minimum of two, preferably three, of the fixedstations sweeps a spread laser beam horizontally across the site of interest. Theremaining fixed station sweeps a spread beam vertically across the site of interest. Astrobe signal is emitted from each fixed station when the rotation mechanism actuates arotation datum. The spatial positioning apparatus also includes one or more portableposition sensors. The portable position sensor includes a light sensitive detector, acomputer, and a display. The x, y, z coordinates of the portable position sensor areobtained through a triangulation technique based on time marks received from eachspread laser beam from the fixed stations and the rotation datum received from thestrobe of each fixed station. Multiple portable position sensors for use in attitudeinformation for productivity improvement for equipment and for control of autonomousvehicles are disclosed.
申请人：SPATIAL POSITIONING SYSTEMS, INC.
代理机构：Wegner, Cantor, Mueller & Player
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