Design and Execution of Digital Leveling System Applied by PDA Mobile Device

To increase the efficiency of the third-class and fourth-class leveling,decrease error rate,and achieve office and field integrated leveling,VS2005 cross-platform language is applied for PDA mobile device which is supported by Windows Mobile 6.0 operating system,and digital leveling system is finally developed.The design principle and executing method of digital leveling system are introduced in detail,which may be referred to in relevant system development.