隧道检测车并联车载稳定平台系统研究

Research of Parallel Vehicle Stability Platform System of Tunnel Detection Vehicle

隧道检测车在应用过程中还有众多技术升级工作需要开展。公路隧道内部光照强度有限,视觉采集系统对外界环境的适应性降低,不同设计时速下的隧道断面尺寸不同、检测车行驶过程中不可避免地左右摇摆、路面颠簸等外界多维扰动等原因,这些都会导致衬砌表面与视觉采集系统之间的距离发生变化,从而降低成像分辨率。在视觉采集系统和检测车之间添加一套车载稳定平台系统,实时检测光学系统与被测隧道衬砌之间的距离,通过控制系统实时补偿运动量,间接调整光学系统参数,从而达到快速调焦、高质量获取图像的目标。

There are still lots of technical upgrading works to be carried out in the tunnel detection vehicle application process.Problems,such as the limitation of the light intensity inside the highway tunnel,the low adaptability of the visual acquisition system to the external environment,the different tunnel section size under different design speed,the inevitable left-right swing of the test car during the driving process,road turbulence and other external multidimensional disturbances,would cause distance between the lining surface and the visual acquisition system to change,thus to reduce the image resolution.This paper applied a set of vehicle stability platform system between the visual acquisition and the detection vehicle to detect the distance between optical system and the target tunnel lining in real time.By controlling the system,the momentum can be compensated in real time,and the optical system parameters can be adjusted indirectly,in order to achieve the goal of fast focusing and high quality image acquisition.