Application of Oblique Photography with Ground Imitation Flight Based on PPK Differential Technology in Mine Surveying
张盼兴1
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作者信息
1. 中国建筑材料工业地质勘查中心浙江总队,浙江 杭州 310022
折叠
摘要
矿山地形复杂,测量时存在测区高程落差较大和通信数据链差等问题,导致测图困难和测量精度低.本研究结合某矿山地形测量项目,采用基于动态后处理(post processed kinematic,PPK)差分技术的高精度位置与姿态系统(position and orientation system,POS)数据辅助空中三角测量、倾斜摄影测量、仿地飞行等关键技术,实现了矿山测区影像数据的快速采集,有效地解决了测区地形高程落差较大、通信数据链差等问题,测绘成果满足 1∶500 测图精度要求.研究结果可以为矿山提供准确的大比例尺基础地形数据.
Abstract
The terrain of the mine is complex,and there are problems such as large elevation fall in the survey area and poor communication data links during mine surveying,which lead to difficulties in mapping and low measurement accuracy.This study combines a mine terrain survey project and adopts high-precision position and orientation system(POS)data assisted by key technologies such as aerial triangulation,oblique photography,and ground imitation flight based on post processed kinematic(PPK)differential technology.It achieves rapid acquisition of image data in the mine survey area,effectively solving problems such as large elevation fall in the survey area and poor communication data links.The surveying and mapping results meet the 1:500 mapping accuracy requirements.The research results can provide accurate large-scale basic terrain data for the mine.
关键词
PPK/倾斜摄影/精度分析/仿地飞行
Key words
post processed kinematic(PPK)/oblique photography/precision analysis/ground imitation flight
维普
万方数据