红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2015年
8期
2358-2363
,共6页
费凯%张璐%朱飞虎%张旭%屠大维
費凱%張璐%硃飛虎%張旭%屠大維
비개%장로%주비호%장욱%도대유
光学设计%LIDAR系统%三角测量%同步扫描
光學設計%LIDAR繫統%三角測量%同步掃描
광학설계%LIDAR계통%삼각측량%동보소묘
optical design%LIDAR system%triangulation%synchronized scanners
为了实现对远近距离的物体进行三维测量,扩大系统的测量范围,建立了融合LIDAR的激光同步扫描三角测量系统。对该系统的原理、系统设计及器件选型进行研究。首先,根据同步扫描机制,在普通三角测量的基础上融合LIDAR技术,并推导出三维点的计算公式。接着,根据系统设计要求,介绍了激光器、接收透镜、反射镜、二向色镜、扫描伺服电机、LIDAR接收器以及相机的选型等。然后,根据选型的结果,设计机械结构。最后,通过Zemax对搭建的光学系统进行光路仿真,验证原理的可行性;并在现实环境中,对APD的回光量进行测试以及对实际物体进行扫描并获得三维点云。实验结果表明,该系统的设计是可行的。
為瞭實現對遠近距離的物體進行三維測量,擴大繫統的測量範圍,建立瞭融閤LIDAR的激光同步掃描三角測量繫統。對該繫統的原理、繫統設計及器件選型進行研究。首先,根據同步掃描機製,在普通三角測量的基礎上融閤LIDAR技術,併推導齣三維點的計算公式。接著,根據繫統設計要求,介紹瞭激光器、接收透鏡、反射鏡、二嚮色鏡、掃描伺服電機、LIDAR接收器以及相機的選型等。然後,根據選型的結果,設計機械結構。最後,通過Zemax對搭建的光學繫統進行光路倣真,驗證原理的可行性;併在現實環境中,對APD的迴光量進行測試以及對實際物體進行掃描併穫得三維點雲。實驗結果錶明,該繫統的設計是可行的。
위료실현대원근거리적물체진행삼유측량,확대계통적측량범위,건립료융합LIDAR적격광동보소묘삼각측량계통。대해계통적원리、계통설계급기건선형진행연구。수선,근거동보소묘궤제,재보통삼각측량적기출상융합LIDAR기술,병추도출삼유점적계산공식。접착,근거계통설계요구,개소료격광기、접수투경、반사경、이향색경、소묘사복전궤、LIDAR접수기이급상궤적선형등。연후,근거선형적결과,설계궤계결구。최후,통과Zemax대탑건적광학계통진행광로방진,험증원리적가행성;병재현실배경중,대APD적회광량진행측시이급대실제물체진행소묘병획득삼유점운。실험결과표명,해계통적설계시가행적。
In order to realize the three-dimensional measurement of the objects regardless of far or near and expand the measurement range, a laser triangulation system based on synchronized scanners with LIDAR was established. Its principle, design and device selection were investigated. First, according to the synchronous scanning mechanism, the LIDAR technology was fused based on traditional three-dimensional measurement and the computational formula of the 3-D points was deduced. The selections of laser device, lens, and dichroscope, scanning servo motor, LIDAR acceptor and camera were analyzed based on system design requirement. After that the mechanical structure was designed and the light path of optical system was simulated by Zemax to prove the feasibility of principle. Finally, the back of light of APD was tested and the actual object was scanned to acquire 3-D point clouds. The experimental results show that the system is feasible.