在地质构造研究中,有限应变测量衍生出了长短轴法、Fry法和心对心法等,但最为常用的是Fry法.在传统的Fry法有限应变测量中,其手工制作较为麻烦,点的个数呈指数增长.本文设计了一个程序,通过相关算法和编程,运用Objective-C可以快速的在移动平台上实现Fry图解,并取得了良好的效果,提高了工作效率,突破了时空限制.

针对目前微创手术机器人定位系统中,由于电磁定位技术在实际应用中出现定位误差大的问题,提出了一种六自由度电磁定位系统的实用设计。对在设计的空间范围内进行仿真,分析了激励系统中线圈在空间产生的磁场及其几何尺寸的优化,利用四元数的快速迭代特性和计算过程无奇异解的特性实现线圈姿态变换,创建了定位系统设计的操作平台,并进行计算仿真比较,结果表明,改进实用模型可行可靠,定位系统可以达到1 mm的定位精度,可有效地克服线圈的有限长效应引起的偏差大,并能够提高微创手术定位的实用性。

本文针对电磁定位导航系统的应用及其体积的微型化、结构的简单化和定位导航精度存在的问题,从系统设计的角度出发,提出了一种探测探头6D电磁导航的快速数值算法和模型,经仿真实验证明了此方法能实现高速高精度电磁定位导航,从而提高电磁定位导航系统的性能及应用范围.

The characteristics of the QuickBird video and two methods for some information extraction from the image are reported in this paper.The methods are supervised classification and threshold.With ERADS and MATLAB software authors have extracted traffic information from remote sensing image.The QUICKBIRD satellite images of Jiuli campus of Southwest jiaotong university are studied.The information on traffic of this area and estimation of traffic flow are quickly get.Based on the information government can control traffic,arrangement traffic network and build the urban transportation more efficiently.

Considering the adjustment of the training direction,this paper analyzes the present problems in the teaching of landscape surveying,which are improper teaching content,inaccurate teaching localization,backward teaching methods and experimental conditions.The authors propose that old teaching contents be removed,teaching system be modernized and teaching modules be projectized.Some related problems are also discussed

The methods of data acquisition are analyzed for digital elevation model.The problem about automated acquisition of digital elevation model data is discussed and solved based on digital topographic map in AutoCAD.At the same time the specific applications and prospects of digital elevation model in the field of urban planning are discussed in detail.

This paper compared different investigative techniques of rural contracted land,combining with the practical measurement of contracted lands in rural areas in Chongzhou city,put forward preparatory works of the measurement of rural contracted lands and methods to define ownership boundaries by using high-resolution images.Finally,the authors put forward some recommendations on the work and some measures.

通过VB编程对EXCEL表格的控制来实现水准测量记录簿的自动生成。