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AutoCAD平台下的矿图符号库设计与开发 总被引:1,自引:0,他引:1
分析矿图图形的基本特征,将矿图图形分为3类,即点状、线状和而状符号。从这3种类型的图例符号特征出发,论述矿图符号库的建立和调用方法。以AutoCAD为平台,以CAD面向对象的开发工具为手段,研究制定出一套矿图符号库,将矿图要素统一考虑、按类分层、一次绘制,以实现各种矿图快速、高效、准确的绘制。 相似文献
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在分析我国矿图普遍采用自由分幅的优点与难点的基础上,提出了一种基于图案填充的直、斜格同绘制与图廓自动生成的新算法,该方法既考虑到格网方向,也解决了注记位置、方向、均匀性、合理性等的计算机自动识别问题,并且可针对不同比例尺图形,绘出相应格网和自动进行图廓注记。 相似文献
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本文以AutoCAD为数字化成图平台,对数字化地形测图与地理信息系统的数据方法进行了探讨,得出了适合它们之间数据格式传输的合理方法。 相似文献
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“数字矿山”建设已成为许多矿业单位努力的目标。而现有的地质、测量矿图仍是目前矿业单位空间地理信息的重要数据源。如何将这些矿图进行数字化,充分发挥它们利用价值,是矿业单位快速建立矿图数据库和建设“数字矿山”的重要条件。目前,对模拟地图进行数字化有多种软件可以实现,如MapGIS、Mapinfo以及其它专业矢量化软件。笔利用CASS5.0地形地籍数字测绘软件对某煤矿进行了地形图和地质图件的数字化工作,在使用中进行了较细致的分析研究,从中总结了一些经验和技巧。 相似文献
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在矿图绘制过程中,AUTOCAD和数据库系统(DBMS)之间的来回切换而引发的种种问题一直难以解决。本文以ASE为基础,介绍一种新型的矿图属性数据数据管理方法,为CAD与DBMS的合理集成提供了一种新途径。 相似文献
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为解决当前矿政管理面临的核心数据掌控不足、信息获取手段不强、数据共享困难等问题,全面提升矿产资源开发监管水平,本文以矿业权数据库为核心,以矿政管理专业数据库为基础,集成接入矿山视频、产量数据和地下矿山三维模型数据,实现对矿山开采活动的一张图监管。 相似文献
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首次应用具有我国自主知识产权的中巴资源卫星影像数据对煤矿矿区采煤地面塌陷进行遥感调查研究。煤矿采空区地面塌陷随着时间日趋严重,面积不断扩大,兼有渐变和突变的特点,用常规方法定点观测难以适应其发展,确定其边界分布非常困难。文章应用中巴资源卫星HR高分辨率影像数据,以六道湾—铁厂沟煤矿矿区为例,通过已知塌陷区的基本特点,建立塌陷区的遥感影像地物解译标志体系,通过人机交互遥感影像解译,圈定地面塌陷的边界并获得塌陷区的有关数据,为该地区环境地质灾害治理提供依据。 相似文献
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矿井巷道三维自动建模方法研究 总被引:21,自引:0,他引:21
基于地理信息系统和虚拟现实技术,提出了由二维巷道到三维巷道的自动建模方法,研究了二维巷道表达、数据提取与组织和三维巷道生成等问题,开发了一个原型系统,完成了二雏巷道数据导入、模型转换、渲染与驱动,并结合河南平煤集团大庄矿实际,实现了巷道模型的自动建立,取得了令人满意的效果。 相似文献
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Radiant temperature images from thermal remote sensing sensors are used to delineate surface coal fires, by deriving a cut-off temperature to separate coal-fire from non-fire pixels. Temperature contrast of coal fire and background elements (rocks and vegetation etc.) controls this cut-off temperature. This contrast varies across the coal field, as it is influenced by variability of associated rock types, proportion of vegetation cover and intensity of coal fires etc. We have delineated coal fires from background, based on separation in data clusters in maximum v/s mean radiant temperature (13th band of ASTER and 10th band of Landsat-8) scatter-plot, derived using randomly distributed homogeneous pixel-blocks (9 × 9 pixels for ASTER and 27 × 27 pixels for Landsat-8), covering the entire coal bearing geological formation. It is seen that, for both the datasets, overall temperature variability of background and fires can be addressed using this regional cut-off. However, the summer time ASTER data could not delineate fire pixels for one specific mine (Bhulanbararee) as opposed to the winter time Landsat-8 data. The contrast of radiant temperature of fire and background terrain elements, specific to this mine, is different from the regional contrast of fire and background, during summer. This is due to the higher solar heating of background rocky outcrops, thus, reducing their temperature contrast with fire. The specific cut-off temperature determined for this mine, to extract this fire, differs from the regional cut-off. This is derived by reducing the pixel-block size of the temperature data. It is seen that, summer-time ASTER image is useful for fire detection but required additional processing to determine a local threshold, along with the regional threshold to capture all the fires. However, the winter Landsat-8 data was better for fire detection with a regional threshold. 相似文献
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传统的矿区地表变形监测获取数据量少、监测周期长、效率不高;结合LiDAR及RTK技术应用到煤矿区地表沉陷监测工作中,进行外业数据采集与内业数据处理,对得到的点云数据和生成的DEM进行煤矿区沉降变形分析,并以贵州某煤矿区为例进行了地表沉陷监测试验,满足精度要求,验证了该方法的可行性。 相似文献
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Determination of spatial distribution of coal quality parameters can ease management of the operations in coal mines. In this study, in order to provide guidance for the excavations, Can coal mine production map showing regions having suitable coal parameters as feed coals for a power plant and also for public sale was prepared using adaptive neuro-fuzzy inference system tool. Statistical relationships among calorific value, ash content and sulphur content were evaluated using the data obtained from boreholes opened in the mine between 2006 and 2009. According to the obtained production map, coals of Can mine are not suitable for public sale because of their high sulphur content and hence they should be blended with low sulphur coals to meet the requirements, before sale. 相似文献
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首先介绍了边角网在煤矿地面控制系统恢复中的应用,再利用恢复后的控制成果对井筒十字中线基点精确放样,然后再次利用边角网对放样的基点进行检测。以吴桂桥煤矿为例,阐述边角网在煤矿井筒十字中线恢复中的应用。 相似文献
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On 3D Geo-visualization of a Mine Surface Plant and Mine Roadway 总被引:1,自引:0,他引:1
WANG Yunjia FU Yongming FU Erjiang 《地球空间信息科学学报》2007,10(4):287-292
Constructing the 3D virtual scene of a coal mine is the objective requirement for modernizing and processing information on coal mining production. It is also the key technology to establish a "digital... 相似文献