Chang Liu was born in Liu'an, Anhui Province, China (1995). He was a graduate student in the School of Mechanical Engineering, Guizhou University in 2018 and a first year PhD student in the School of Mechanical Engineering, Guizhou University in 2020. During this period, he participated in the China Digital Expo Unmanned Driving Competition and obtained the second prize (2019), and published the paper "Improved Lidar Obstacle Detection Method Based on Euclidean Clustering "(2019). Address: School of Mechanical Engineering, Guizhou University, Guiyang, Guizhou Province, China Major: Mechanical Engineering Research Interests: UAV/UGV cooperative localization and map fusion; SLAM; self-driving.