PDA-Based Data Processing System For Construction Site

With the development of computer technology, the degree of civil engineering information is becoming higher a higher, while fewer systems used for data processing of project site. Based on PDA, this system is designed to develop an intelligent instrument equipped with the function of engineering, data processing, which produces great significance for the efficiency of project management.Starting with the status of applications of embedded systems in the construction projects, this dissertation analyzes the demand for the construction field data processing and the application of system to develop a suitable, more efficient and practical support system for PDA. With the advantage of rapid data input, edit and update, faster data processing, large storage capacity and easy carrying, great convenience will be brought in the mobile office, data collection in the field and so on. Further more, work efficiency will be improved greatly.The system uses the S3C2410 as the hardware platform and linux as operating system to design the system software and hardware solutions. Based on the embedded database, the dissertation also researches and analysis the characteristics of SQLite embedded database, develops the Qt graphical user interface and the user can interaction with PDA through the touch screen.To achieve the calculation of the project site small-scale earth volume, the system analyses the advantages and disadvantages of common earth volume calculation algorithm, and designs a grid optimization algorithm as the module of the earthwork volume calculation algorithm. And also, other issues in the traditional earthwork volume algorithm are resolved such as large type of error occurs when the type of excavation and filling of the adjacent transaction is inconsistent, the irregular transect division, computation, and the problem not conducive to the realize on the PDA.On account of the requirements for construction site, the system designs the measurement modules, data query module, fieldwork survey module, material management module, and extends the system's function of application.Figure 29 table 15 reference 38...