基于角度传感器的树木胸径测量装置研制  

Development and Testing of a Tree Breast Diameter Measuring Device Based on Angle Sensors

作　　者：郑似青 方陆明 郑辛煜 袁方星 楼雄伟 ZHENG Siqing;FANG Luming;ZHENG Xinyu;YUAN Fangxing;LOU Xiongwei(College of Information Engineering,Zhejiang A&F University,Hangzhou Zhejiang 311300,China;Zhejiang Provincial Key Laboratory of Forestry Intelligent Monitoring and Information Technology,Hangzhou Zhejiang 311300,China;Key Laboratory of State Forestry and Grassland Administration on Forestry Sensing Technology and Intelligent Equipment Hangzhou Zhejiang 311300,China)

机构地区：[1]浙江农林大学信息工程学院,浙江杭州311300 [2]浙江省林业智能监测与信息技术研究重点实验室,浙江杭州311300 [3]国家林业与草原局林业感知技术与智能装备重点实验室,浙江杭州311300

出　　处：《传感技术学报》2020年第10期1399-1405,共7页Chinese Journal of Sensors and Actuators

基　　金：浙江省科技重点研发计划项目(2018C02013);浙江省自然科学基金青年基金项目(LQ19D010011)。

摘　　要：为了实现树木胸径高精度数字化测量,在分析角度传感器原理的基础上,研制了一款基于角度传感器的树木胸径测量装置,结合安卓端上位机实现了数据存储、编辑和上传等功能。野外试验表明:与围尺、卡尺测量结果比较,偏差(BIAS)分别为-0.17 cm(-0.89%)、0.09 cm(0.52%),均方根误差(RMSE)分别为0.39 cm(2.07%)、0.42 cm(2.25%);8个树种间胸径测量精度达98%。与传统测量方法相比较,无需人工读取、录入数据,在森林资源调查上有广阔的应用前景。In order to achieve high-precision digital measurement of tree diameter at breast height(DBH),we developed a DBH measurement device based on angle sensors,which paired with the android software application via bluetooth for storage,editing and uploading DBH data automatically.This new device is portable and which was used to measure eight species of trees to assess its accuracy here,and the field tests show that:compared with diameter tapes,the DBH measurements have a-0.17 cm(-0.89%)bias and 0.39 cm(2.07%)root mean square error(RMSE);compared with calipers,the DBH measurements have a 0.09 cm(0.52%)bias and 0.42 cm(2.25%)root mean square error(RMSE).The mean accuracy of DBH reaches 98%between eight tree species.Moreover,there is no need to manually read and input data,and it has broad application prospects in forestry resource inventory.

关 键 词：森林资源调查 角度传感器 胸径测量 安卓上位机 

分 类 号：S758.7[农业科学—森林经理学] TP23[农业科学—林学]