Bài viết Xây dựng qui trình thành lập bản đồ địa hình tỷ lệ lớn mỏ lộ thiên bằng thiết bị bay không người lái cất cánh thẳng đứng giới thiệu kết quả xây dựng qui trình kỹ thuậtthành lập bản đồ địa hình tỷ lệ lớn cho các mỏ lộ thiên ở Việt Nam bằng thiết bị UAV cất cánh thẳng đứng. | Journal of Mining and Earth Sciences Vol. 63 Issue 5 2022 11 - 24 11 Developing a procedure to produce large-scale topographic maps of open-pit mines using rotary wing unmanned aerial vehicles Long Quoc Nguyen 1 Tam Thanh Thi Le 1 Canh Van Le 1 Cuong Xuan Cao 1 Minh Tuyet Dang 2 Dung Ba Nguyen 3 1 Hanoi University of Mining and Geology Hanoi Vietnam 2 Thuyloi University Hanoi Vietnam 3 Hanoi University of Natural Resources and Environment Hanoi Vietnam ARTICLE INFO ABSTRACT Article history Recently the rapid development of unmanned aerial vehicle UAV has led Received 26th Sept. 2021 to increasingly popular applications of this technology in the field of Revised 03rd Dec. 2021 surveying and mapping. This article presents the result of developing a Accepted 31st Oct. 2022 procedure to produce large-scale topographic maps for open-pit mines in Keywords Vietnam in which unmanned aerial vehicles UAV are used to collect data. Dong Da Mai coal mine With the goal of creating a procedure that ensures accuracy safety and Large-scale topographic maps efficiency for the production of topographic maps the theories and official regulations for measuring and editing topographic maps in general and in Long son quarry mines in particular as well as using drones in Vietnam have been applied. Open-pit mines The procedure is specifically developed for the vertical takeoff and landing Rotary wing UAV. rotary UAVs. Experiments consisting of the flight altitude calculation determining the appropriate take-off position and image acquisition were conducted at two open-pit mines namely Dong Da Mai coal mine and Long Son quarry to verify the procedure. The digital surface models DSM and orthophotos are generated from the acquired photos georeferenced to the VN-2000 coordinate system using ground control points GCP and evaluated with checkpoints. In addition the experiment included the investigation of the various combination of GCP networks to determine the optimal GCP number for each case.
