Research On The Application Of GPS In The Long Span Bridge Deflection Monitoring

"3S" technology brings a revolutionary change to the mapping technology. GPS technology will be used to monitor deformation of large bridges, using advanced data processing methods, and building a real-time, automated, high-precision deformation monitoring system that will be the future trend of development.The paper focuses bridge deformity of the GPS network theory Single Epoch algorithm based on GPS data processing program. It was also discussed the deformation monitoring information system in the bridge design. First, in accordance with the characteristics of high-precision deformation monitoring, that Solution deformation information to establish direct model and the data-processing algorithms, and model the error sources of quantitative and qualitative analysis; Bridges deformation characteristics of a bridge GPS deformation monitoring program design principles and procedures; Then, prepared a paper on the theory of data processing procedure, relying on the actual project, to design and implement of a stable, reliable, GPS bridge rapid deformation monitoring system; Finally, according to the general principles of deformation monitoring information system design, the procedure is designed to achieve some menu functions.