Infrared and Laser Engineering, Volume. 49, Issue S2, 20200362(2020)
Design of time synchronization device for mobile LiDAR measurement system based on BeiDou navigation timing
The space-time registration technology between the measurement sensors of the mobile LiDAR measurement system is the core technology of the entire system design, and the problem of time synchronization is particularly critical. Aiming at the problem of accurate time synchronization between the inertial navigation system and the LiDAR and panoramic camera, combined with the Beidou navigation grant time system, a method was proposed which designed a time synchronization device to provide space-time registration information for vehicle-mounted measurement platforms that integrate LiDAR, inertial navigation system, panoramic camera and other mapping sensors. The vehicle-based mobile measurement system with full independent intellectual property rights was taken as the research object. Through this measurement system the LiDAR point cloud data was collected. Using the designed time synchronization device, the prepared upper software were combined with Beidou satellite navigation system for accurate time synchronization. Finally, the accuracy of time synchronization reaches 0.1 ?滋s, which verifies the feasibility of the design method of time synchronization device.
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Guo Ming, Zhou Yuquan, Chen Cai, Zhou Zhijie, Guo Kecai. Design of time synchronization device for mobile LiDAR measurement system based on BeiDou navigation timing[J]. Infrared and Laser Engineering, 2020, 49(S2): 20200362
Category: 激光器与激光光学
Received: Sep. 29, 2020
Accepted: Oct. 27, 2020
Published Online: Feb. 5, 2021
The Author Email: Cai Chen (chencai@zust.edu.cn)