Design And Development Of Automatic Drawing System Of Frozen Soil Development Process Line In Seasonally Frozen Area

China’s permafrost area accounts for 22.3% of the total land area,and seasonal frozen soil covers most of the land.The reasonable development and resource utilization of permafrost regions are the problems that the typical permafrost regions need to face,which are closely related to people’s life and economic development.Permafrost exists in the northeast,northwest of China and most area of the Qinghai Tibet Plateau.In the relevant scientific research,due to the large amount and complexity of frozen soil research data collection,the processing and analysis of frozen soil monitoring data still need a lot of manpower and material resources.Therefore,automatic processing and mass storage of frozen soil monitoring data in typical seasonal frozen soil area is of great significance to the development and promotion of frozen soil research in seasonal frozen soil area.Therefore,a system based on Microsoft Visual Basic 6.0 was developed,which can automatically process data and generate frozen soil development process line,and store the data in Microsoft Access for later query.After design and analysis,it is pointed out that:1.Through this design,a simple and efficient frozen soil data processing and storage system was provided,which could be widely used in other seasonal frozen soil areas.The program includes: data processing,database storage,data query and curve generation module,which have the characteristics of high efficiency and accuracy in the above operation.This program can greatly reduce the time required in the process of data processing and increase of efficiency.The system bases on Microsoft Visual Basic 6.0language and runs on all windows operating systems with good practicability.2.During the programming,a mathematical model was established to solve the problem by combining the mean value and linear interpolation method and call this model for data processing.When the data was saved,the original data,calculation results,critical results and the final curve data query function were realized and linked to the access database.3.The study area of this paper is the monitoring point of Heilongjiang University in Harbin city of Heilongjiang Province and the monitoring point of Songling District in Daxinganling region,which are the typical seasonal frozen soil areas.Based on the comparison between the manual processing results and the automatic processing results of the frozen soil monitoring data during the freeze-thaw cycle in the four research areas,this paper concludes that the system runs smoothly and efficiently,which can ensure the accuracy of the data processing in the research of frozen soil development process and achieve the expected goal.