The invention relates to an inertial navigation and Beidou navigation integrated track inspection trolley, and belongs to the technical field of track monitoring. Comprising a main cross beam, two supporting beams, a longitudinal beam, three walking wheels, three gauge wheels, two sets of guide wheels and a push rod. The axial direction of the main cross beam is perpendicular to the longitudinal beam; the two axial ends of the longitudinal beam are respectively connected with the main cross beam through one supporting beam; the bottoms of the two axial ends of the longitudinal beams and the bottoms of the axial outer ends of the main cross beams are each provided with a walking wheel. A gauge wheel is arranged on the inner side wall of each walking wheel; a group of guide wheels are correspondingly arranged at the gauge wheels at the bottom of the main cross beam; one group of guide wheels is correspondingly arranged at one gauge wheel at the bottom of the longitudinal beam; the push rod is arranged in the middle of the upper surface of the main beam; according to the method, the relative geometrical shape and the track irregularity of the track are measured by utilizing the relative measurement capability of inertial navigation, the accumulative error of inertial navigation is inhibited by utilizing the absolute positioning property of Beidou navigation, the position where the track irregularity occurs is accurately positioned, and the centimeter-level absolute precision is realized.
本发明涉及一种惯性导航与北斗导航一体的轨检小车,属于轨道监测技术领域;包括主横梁、2个支撑梁、纵梁、3个行走轮、3个轨距轮、2组导向轮和推杆;主横梁轴向与纵梁垂直安装;纵梁的轴向两端分别通过1个支撑梁与主横梁连接;纵梁的轴向两端底部、主横梁的轴向外端底部分别设置一个行走轮;每个行走轮的内侧壁设置有1个轨距轮;主横梁底部的轨距轮处对应设置1组导向轮;纵梁底部的其中1个轨距轮处对应设置1组导向轮;推杆设置在主横梁上表面的中部;本发明利用惯性导航的相对测量能力测量轨道的相对几何形状及轨道不平顺性,利用北斗导航的绝对定位性抑制惯性导航的累积误差,精确定位轨道不平顺发生的位置,实现厘米级的绝对精度。
Track inspection trolley integrating inertial navigation and Beidou navigation
一种惯性导航与北斗导航一体的轨检小车
2023-02-03
Patent
Electronic Resource
Chinese
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