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Research And Application Of The Method Of Collecting And Updating Geographic National Conditions Monitoring Data Based On Model Builder

Posted on:2020-03-19Degree:MasterType:Thesis
Country:ChinaCandidate:X J DuanFull Text:PDF
GTID:2430330620980091Subject:Surveying and mapping engineering
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Geographical national conditions refer to geographical and human factors related to geography,reflecting a region's humanities,economics,and natural conditions from a geospatial perspective.From the perspective of geography,the use of spatial methods to continuously observe the relevant elements of national conditions,while the process of collecting,processing and statistical analysis of monitoring results is the monitoring of geographical conditions.Since 2016,due to the needs of the transformation and development of the geographic information industry,the provinces have carried out annual normalization monitoring in accordance with the overall arrangements and arrangements of the State Council on the monitoring of geographical conditions.On the basis of the national survey of geographical conditions,the content system is consistent with the first national census of national geography in 2015,ensuring coverage across the country,facing general goals,and taking into account the needs of various industries for annual normal monitoring.,continue to provide professional geographical information support on demand.Continue to go deep into the normal monitoring service,do deep,strong,and fine.This topic is to carry out targeted research in the operation process of the production and implementation stage of the geographical situation monitoring project.On this basis,the corresponding solutions and improvement measures are proposed.At present,the national situation monitoring tasks are mainly: collection and collation of thematic data,change information identification and collection,data monitoring and update,field investigation and verification,internal data editing and collation,monitoring results inspection and acceptance,and pre-inspection of the results data.Related preprocessing,summary of results,etc.The key links are mainly reflected in: multi-source data collection and integration,change regional monitoring data collection,rational use of interpretation samples,and correctness of results data collection.The quality of each link affects whether the monitoring work can be completed on time,and also affects whether the quality of the monitoring results meets the requirements of the specification.Taking the monitoring of geographical conditions in Deqin County as an example,the geographic information platform such as Arc GIS is used to explore the processing methods of each key link,and the method of monitoring and monitoring the geographical conditions of the country is refined to reduce the probability of errors caused by human factors.The specific research contents are as follows:This paper summarizes the current situation of domestic and foreign geographic monitoring,analyses the current situation of China's geographic monitoring development,compares the advantages and disadvantages of domestic and foreign geographic monitoring and the trend of future monitoring development,and introduces in detail the physical and geographical conditions,topography,traffic conditions,climate and natural resources in Deqin County.The main contents of the monitoring work of geographical conditions are studied in detail.The characteristics of monitoring and changing of land cover and geographical elements in each year from 2015 to 2019 in Deqin County are analyzed and summarized.For example,with the development of the country,the rural roads in Deqin County have increased significantly since 2016.Data analysis of geographic national condition monitoring project will find that: the increase of pavement area in surface coverage,the increase of manual dump and abandoned houses;the increase or extension of road central line in geographic national condition factors,the change of space location of unit courtyard,etc.Through the necessary summary,it is conducive to the follow-up of Deqin County's geographic situation monitoring work,grasp the key points,and play a corresponding guiding role.Explain in detail the problems that may be encountered in the corresponding process of monitoring the national conditions of the country,explore the corresponding solutions,improve the work efficiency,reduce the probability of data errors,the errors caused by human factors can be effectively reduced,and the overall quality of the data of the national conditions monitoring project can also be significantly improved.At the same time,it refines and perfects the applicable methods of geographical condition monitoring in Deqin County to guide production practice.In general,in the case that the existing supporting processing software can not be satisfied,based on Arc GIS visual Model Builder principle and technology,combined with Python script programming language to complete the corresponding batch tool function design and the preliminary programming development of the corresponding script,preliminary realization of geographical conditions Monitor batch processing functions at various stages of data distribution,change information identification and collection,data edge selection,data inspection,and interpretation of sample data processing.It can be used in the actual production practice to verify the availability of relevant batch processing tools,which can be used as a supplement to the professional production quality inspection software provided by the state and the provincial level,can provide scientific and technical refinement and optimization reference and guidance for the implementation of the geographical situation monitoring project,and can also be used as a follow-up technology in the production process of the geographical situation monitoring project in Deqin County.
Keywords/Search Tags:geographic condition monitoring, surface coverage, geographic condition elements, ArcGIS, Python
PDF Full Text Request
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