用于管道检测机器人的微型化成像系统(特邀)

Miniaturized Imaging System Designed for Pipeline Detection Robots(Invited)

管道机器人是对复杂系统中管道损伤进行检测和评估的主要工具之一,通过沿行进方向搭载成像系统,实现了在管道中的运动导航和内环境观察。然而,这会导致管壁信息存在于图像传感器边缘,不可避免地会受到镜头畸变的影响而降低对损伤的检测精度,提高对损伤的定量难度。而搭载额外的成像系统观察管壁会大大增加机器人的承载负荷和整体体积,尤其在小尺寸管道机器人中。设计一款适用于管道机器人的微型化管壁成像系统。经过元件选型、光学系统优化和3D打印集成后,整个系统的体积为25 mm×30 mm×12 mm,最优横向分辨率为15.63μm。最后利用该系统制作了一款微型管道机器人,验证了其成像效果和定量能力。此系统有望搭载到其他管道机器人上作为扩展载荷,提升对管壁细节信息的捕捉能力。

Pipeline robots are vital tools for detecting and assessing pipeline damage in complex systems.Incorporating imaging systems into their forward trajectory enables these robots to navigate and observe the internal environment of pipelines.However,this positioning often results in pipeline walls information appearing at the edges of the image sensor,where lens distortions substantially impact the image quality.This distortion reduces the precision of damage detection and complicates the quantification of damage.Additionally,integrating additional imaging systems to observe the walls would substantially increase the robot's payload and volume,which is a critical issue for small-scale pipeline robots.To address these challenges,we developed a miniaturized wall imaging system specifically for pipeline robots.Our approach involves careful component selection,optimization of the optical system,and integration using 3D printing,resulting in a compact system measuring 25 mm×30 mm×12 mm and offering an optimal lateral resolution of 15.63μm.Furthermore,we constructed a miniaturized pipeline robot using this system,demonstrating its effectiveness in imaging and quantification.This innovative system can be integrated into various pipeline robots,thereby enhancing their capabilities in capturing detailed information about pipeline walls.