The Design And Realization Of Highway Maintenance Data Collection System Based On PDA

Now:with the development of information technology,network technology,the hardware and software of PDA equipment.it has become the new media of highway maintenance data acquisition. In the past,due to hardware limitations most of the data acquisition modules which run on the PDA only provide the function of inputting basic data and the investigators can not understand the overview of data. Since the advent of Windows Mobile 5.0 operating system,the function which ever only be realized on desktops can also be implemented on the PDA.Therefore,these changes open up new prospects for the traditional highway maintenance data acquisition, and it will greatly promote the data collection and related processing technology.The thesis combines with the wireless network technology and global positioning technology,and describes the specific design and implementation process of the remote data collection system in detail.First of all.the thesis introduces the research background and purpose of this system.describes the urgency and necessity to realize the remote data collection of the highway maintenance.and introduces the domestic and overseas data collection research status and developments in brief.Secondly.the operating system platforms and key technologies which are involved in the system design and implemention are also described in brief.Again,the thesis analyzes and designs the each function module's requirements through analyzing the actual situation of this system,then describes the system security and database design.Finally, the thesis describes the system realization process in detail,including mobile database implementon,GPRS connecting to network,GPS data processing and the functional interface implementon.The thesis also does a summary and outlook of writer's work.The design proposal that the thesis puts forward based on PDA highway repairing and maintaining data collecting system.can solve the problems which exist in labour collecting inspection data.Through practical proof,the inspection data not only can be promptly transmitted.but also the accuracy is high.