上海国土资源
上海國土資源
상해국토자원
SHANGHAI LAND&RESOURCES
2014年
2期
74-78,85
,共6页
地籍调查%地下空间%数据采集%数字化配准%精度评价
地籍調查%地下空間%數據採集%數字化配準%精度評價
지적조사%지하공간%수거채집%수자화배준%정도평개
cadastral survey%underground space%data col ection%digitalization registration%accuracy evaluation
在上海市地下空间调查项目中，为获取存量地下工程的空间位置信息，设计并实施了两套不同目标精度的调查方案。第一套方案通过外业测量获取地下空间要素方位，经矢量化制图等后处理生成最终成果。第二套方案将地下工程竣工图件作为原始资料进行矢量化，经图形配准或基于控制点的坐标转换完成地理空间校正。通过开展地下空间测量实验，评定不同技术途径获取的平面、高程数据精度。实验结果证明了两套方案的有效性与适用性。
在上海市地下空間調查項目中，為穫取存量地下工程的空間位置信息，設計併實施瞭兩套不同目標精度的調查方案。第一套方案通過外業測量穫取地下空間要素方位，經矢量化製圖等後處理生成最終成果。第二套方案將地下工程竣工圖件作為原始資料進行矢量化，經圖形配準或基于控製點的坐標轉換完成地理空間校正。通過開展地下空間測量實驗，評定不同技術途徑穫取的平麵、高程數據精度。實驗結果證明瞭兩套方案的有效性與適用性。
재상해시지하공간조사항목중，위획취존량지하공정적공간위치신식，설계병실시료량투불동목표정도적조사방안。제일투방안통과외업측량획취지하공간요소방위，경시양화제도등후처리생성최종성과。제이투방안장지하공정준공도건작위원시자료진행시양화，경도형배준혹기우공제점적좌표전환완성지리공간교정。통과개전지하공간측량실험，평정불동기술도경획취적평면、고정수거정도。실험결과증명료량투방안적유효성여괄용성。
To obtain information about the location of underground engineering stock in an underground spatial survey project in Shanghai, two sets of different target accuracy surveys schemes were designed and implemented. The first scheme obtains underground spatial location factors using ifeld measurements and produces the ifnal results by vector mapping and other post-processing procedures. The second scheme treats the completed maps of underground construction as original data to vectorize, and then completes geographical spatial correction by graphical matching or coordinate transformation based on control points. Through these experiments of measuring underground location, the horizontal and vertical accuracies of the data were evaluated using various techniques. The experimental results show the effectiveness and applicability of both schemes.
