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    • 5. 发明授权
    • Locomotive location system and method
    • 机车定位系统及方法
    • US07209810B2
    • 2007-04-24
    • US10980191
    • 2004-11-04
    • Thomas J. MeyerThomas R. Metzger
    • Thomas J. MeyerThomas R. Metzger
    • G01C21/26
    • B61L25/021B61L25/023B61L25/025B61L25/026B61L25/028B61L2205/04
    • A locomotive location system and method utilizes inertial measurement inputs, including orthogonal acceleration inputs and turn rate information, in combination with wheel-mounted tachometer information and GPS/DGPS position fixes to provide processed outputs indicative of track occupancy, position, direction of travel, velocity, etc. Various navigation solutions are combined together to provide the desired information outputs using an optimal estimator designed specifically for rail applications and subjected to motion constraints reflecting the physical motion limitations of a locomotive. The system utilizes geo-reconciliation to minimize errors and solutions that identify track occupancy when traveling through a turnout.
    • 机车定位系统和方法利用惯性测量输入,包括正交加速度输入和转向速率信息,结合车轮转速计信息和GPS / DGPS位置定位,以提供指示轨道占用,位置,行进方向,速度 等等。各种导航解决方案组合在一起,以使用专门针对轨道应用设计并经受反映机车的物理运动限制的运动约束的最佳估计器来提供期望的信息输出。 该系统利用地理协调来最小化错误和解决方案,以便在旅行途中识别轨道占用。