GPS-RTK、Total Station And CASS7.0in The Flat Field Application Analysis

Along with the development of national economy, surveying and mapping use also more and more widely, and also to the surveying and mapping work put forward higher request. On the one hand, more and more diverse forms of surveying and mapping products, not only the traditional paper document, there are easy to carry, easy to change the electronic results; On the other hand, the theory and methods, equipment, software of surveying and mapping, Also in constant mature development and promote the development of the surveying and mapping to a deeper level. The original rely solely on GPS-RTK or Total station, for terrain measurement, especially large area map measurement, flat field, already can’t meet the needs of production. Modern surveying and mapping, not only have the field data collection, but to the generation of achievements in the industry. In order to cut costs, improve efficiency, make both with the mapping, more and more applied to real production.This article through to the general situation analysis, GPS-RTK, Total station mapping of the basic theory of analysis, GPS-RTK joint Total station r mapping theory analysis, the control points precision analysis, comparison and analysis of the calculating method conditions, Based on6of the flat field as a investigation in Liangjiang new district Shuitu technology industrial development zone,Chongqing.(the following abbreviation:6of the flat field in Shuitu technology industrial development zone), Learned that in the topographic mapping, flat field conditions, GPS-RTK joint Total station mapping is feasible and effective. According to the different conditions, the calculation method of analysis:(1) Section method is applicable to the terrain changes greatly, the court changes in contour rules, and along the longitudinal extension, no obvious lateral changes of the belt region;(2) Contours act applies to larger terrain ups and downs, the accuracy of the area is not high, Often used to estimate of the Volume;(3) Digital Elevation Model applicable to higher accuracy, large area and terrain;(4) Square nets act applies to higher accuracy, the rules change, slope smaller areas. With CASS7.0software, calculated under conditions of various methods that amount, further verified the above conclusions.Combined with in the actual operation of the problems encountered further put forward the measurement methods, surveying and mapping tools should improve place. In order to the surveying and mapping can be better service for the national economy.