刘金成,黄晓东,杨立岩,冯仲科.基于CCD超站仪的森林样地建立与精测方法研究[J].农业机械学报,2016,47(11):316-321.
Liu Jincheng,Huang Xiaodong,Yang Liyan,Feng Zhongke.Establishment and Precise Measurement of Forest Sample Plot Based on CCD Super Station[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(11):316-321.
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基于CCD超站仪的森林样地建立与精测方法研究   [下载全文]
Establishment and Precise Measurement of Forest Sample Plot Based on CCD Super Station   [Download Pdf][in English]
投稿时间:2016-05-19  
DOI:10.6041/j.issn.1000-1298.2016.11.043
中文关键词:  森林固定样地  CCD超站仪  摄影测量  样木坐标  胸径
基金项目:国家自然科学基金面上项目(41371001)和北京市科技专项(Z15110000161596)
作者单位
刘金成 北京林业大学 
黄晓东 北京联合大学应用文理学院 
杨立岩 北京林业大学 
冯仲科 北京林业大学 
中文摘要:为了能够快捷、精准地进行固定样地定位和样木胸径测量,提出一种利用CCD超站仪按测带进行像对观测的方法,在GPS/RTK确定或假定的观测点上架设仪器,借助全站仪坐标测量和角度测量功能精确记录CCD摄影瞬间的外方位元素,并确定出其他观测点坐标,选择合适基线长建立像对进行观测,提取目标位置的相对三维坐标,以“S”形路线按测带进行测量,配合少量的人工补测和相关坐标系的旋转变换,实现森林固定样地精准建立和胸径精测的目的。通过实地测试,表明利用该方法能够以较少的站点实现固定样地的建立,并将图像解算的胸径值与实地调查值进行对比,其平均相对误差为3.9%,解算均方根误差为1.2cm。该方法在森林样地建立中有较好的应用前景。
Liu Jincheng  Huang Xiaodong  Yang Liyan  Feng Zhongke
Beijing Forestry University,College of Arts and Science of Beijing Union University,Beijing Forestry University and Beijing Forestry University
Key Words:forest sample plot  CCD super station instrument  photogrammetry  sample trees coordinates  diameter at breast height
Abstract:The accurate establishment of forest sample plot plays a key role in capturing the parameters characteristics and reveals the regular variation of the forest. To quickly and precisely measure the fixed constructions and trees of sample plots, methods which used CCD super station to carry out image pair observation of measuring tape were proposed. Setting up the instruments in the observation point was determined by the GPS/RTK with the help of total station coordinate measurement and angle measurement function to accurately record the exterior orientation elements of the CCD moment photography. To determine the coordinates of other observation points, the appropriate baseline length to establish the image pair observation was selected in order to extract the relative three dimensional coordinates of the target location. The measuring tape method with the “S” type route, with a small amount of artificial repair and related coordinate system rotation transformation were carried out, to achieve the precise establishment of forest fixed sample and the diameter measurement. The experimental results showed that the proposed method can be used to achieve the establishment of fixed sample plots with fewer sites, and the DBH calculated by the photos were compared with field survey value. The average relative error was 3.9%, and the root mean square error was 1.2cm respectively. The proposed method has good application prospect in forest sample plot establishment.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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