手机指南针在标准地调查中的应用研究  

Application of Compass of Mobile Phone in Survey of Sample Plots

作　　者：曾文静 鄢前飞[1] ZENG Wenjing;YAN Qianfei(Forestry College,Central South University of Forestry and Technology,Changsha 410004,China)

机构地区：[1]中南林业科技大学林学院,湖南长沙410004

出　　处：《林业调查规划》2020年第4期1-8,共8页Forest Inventory and Planning

摘　　要：针对当今林业标准地调查工具滞后现象,尝试性地将手机指南针运用到标准地调查中,试图探究方位角测量新途径。采用手机重力指南针V3.1.12与哈光DQL-12Z型森林罗盘仪在标准地调查中进行精度、效率对比分析。研究结果表明,手机指南针不受森林环境的影响,在精度上,手机指南针方位角测量与罗盘仪测量误差的标准差仅为1.61°,T检验结果,两者在方位角测量误差上无显著差异。在工作效率上,结合皮尺设置25 m×25 m方形标准地,手机指南针平均完成设置时间为34 min,罗盘仪为38 min,手机指南针提高工效4 min。手机指南针数字化读数快捷,携带与操作简便,采用固定支架并安装瞄准装置可替代罗盘仪成为标准地调查信息化、数字化工具。This paper attempted to explore a new way of azimuth measurement by using the compass of mobile phone in the survey of sample plots in view of the lagged forestry survey tools.The comparison and analysis for the precision and efficiency of gravity compass V3.1.12 and HAGUANG forest compass DQL-12Z showed that the standard deviation of mobile compass which was not affected by the forest environment was only 1.61°with that of forest compass on the azimuth measurement error,and both of them had no significant difference according to the T test.In terms of working efficiency,the mobile compass took 34 min to set a sample plot of 25 m×25 m which improved by 4 min compared with the forest compass that took 38 min.The mobile compass was fast for digital reading and easy to carry and operate,adopted fixed bracket and equipped with aiming device,which could replace forest compass as the information and digital tool for sample plots survey.

关 键 词：手机指南针 标准地调查 森林罗盘仪 方位角测量 精度测试 效率对比 瞄准装置 

分 类 号：S757.21[农业科学—森林经理学] TN929.53[农业科学—林学]