车载激光测量技术在质检应用中的可行性

测绘成果质量检查与验收是测绘生产项目全过程中非常重要的一环。现有的检验手段主要是利用全站仪和GNSS RTK外业采点,外业工作量大、采点数量少。随着新技术不断涌现,传统手段无法满足数据快速更新、精度不断提高的要求。车载激光扫描测量技术作为现代测绘领域比较前沿的技术之一,具有数据采集速度快、处理自动化程度高、成果直观、精度高、机动性强的特点,非常适用于各类测绘数据成果的质量检查。本文利用SSW车载激光建模测量系统扫描采集了15个样本区的数据,经过特征点全自动提取、筛选,得到用于检查的数据成果,与常规方法获取的数据进行比较,验证了该技术用于质检工作的可行性。

Feasibility of the vehicle laser measurement system in quality inspection

Quality inspection and acceptance of surveying and mapping results is a very important part in the whole process of surveying and mapping production projects.The existing inspection methods mainly use total station and GNSS RTK field purchasing points, which are heavy in workload and small in number.With the continuous emergence of new technologies, traditional methods can not meet the requirements of rapid update of data and continuous improvement of accuracy.Vehicle-mounted laser scanning and measurement technology, as one of the cutting-edge technologies in modern surveying and mapping field, has fast data acquisition speed, high automation degree of data processing, intuitive data results, high-precision and strong mobility, and is very suitable for quality inspection of all kinds of surveying and mapping data results.In this paper, SSW vehicle-mounted laser modeling and measurement system is used to scan and collect data from 15 sample areas. After automatic extraction and screening of feature points, data results for inspection are obtained. Compared with the data obtained by conventional methods, the feasibility of the the technology for quality inspection is verified.