Zhujidong Coal Mine GNSS Network Data Processing And Quality Assessment

Currently,Subsidence monitoring large surface area for the problems caused by miningunderground coal mining,The use of GNSS precise positioning technology, Take advantage of its real-time data collection, all-weather, high precision,speed,etc. Monitoring ground subsidence in the mine,Much of the content is static GNSS measure obtained using data for processing,Analysis of precision GNSS network,After the plane coordinate system for the transformation, elevation systems provide the basis for fitting,Application of GNSS precise positioning technology Mining Engineering Control Network Layout can improve network reliability and data accuracy and greatly improved work efficiency.This paper focuses on global satellite navigation and positioning technology on the basis of measurement applications on mining, It focuses on the use of GNSS technology to establish control of the control network Its main contents include control network program design and Introduction GNSS field data collection and data processing, the plane coordinate system conversion and quality evaluation, elevation system conversion.Combined with the actual situation in the above East Zhujidong Mine Huainan City of Anhui Province observatory link measurements, comprehensive and systematic introduction to the process and method of GNSS network data processing, analysis of the measurement measure and precautions network.Mainly introduce how to establish measurement control network by using GNSS Technology. The contents include introduction of design and scheme of the observation scheme、he field data collection and baseline solution、the space adjustment quality evaluation、 plane coordinate system conversion and quality evaluation and elevation coordinate system conversion and quality evaluation.