摘要
针对传统GIS数据自动更新技术更新的数据字节数量较少的问题,研究一种基于数据自动更新技术的GIS数据自动更新技术。首先利用数据自动更新技术的等线性特征检测算子对GIS数据进行卷积运算,将运算后的GIS数据描述为空间数据,建立一个合理的更新准则,利用更新准则的度量重建GSI数据的空间关系,然后计算一个更新时间范围内更新的GIS数据矢量,并不断变更空间中的区域数据要素,完成对GIS数据的更新。实验结果表明:与传统GIS数据自动更新技术相比,基于数据自动更新技术的GIS数据自动更新技术在更新相同的数据字节数量下,更新的数据字节更多。
Aiming at the problem that the number of bytes of data updated by traditional GIS data automatic updating technology is less,a GIS data automatic updating technology based on data automatic updating technology is studied.Firstly,the convolution operation of GIS data is carried out by using the equal linear feature detection operator of data automatic updating technology.The GIS data after the operation is described as spatial data,a reasonable updating criterion is established,and the spatial relationship of GSI data is reconstructed by using the measurement of updating criterion,then the updated GIS data vector within the updating time range is calculated,and the regional data in the space is constantly changed Elements,complete the update of GIS data.The experimental results show that:compared with the traditional automatic updating technology of GIS data,the automatic updating technology of GIS data based on automatic updating technology updates more data bytes under the same number of data bytes.
作者
宁玉文
朱艳华
张原瑞
李小康
NING Yuwen;ZHU Yanhua;ZHANG Yuanrui;LI Xiaokang(Information technology office of Air Force Military Medical University,Xi’an 710032,China;Public Service Department of Shanxi Youth Vocational College,Xi’an 710068,China;Political Work Office of Air Force Military Medical University,Xi’an 710032,China;Network and data center of Northwest University,Xi’an 710127,China)
出处
《自动化与仪器仪表》
2020年第10期23-26,30,共5页
Automation & Instrumentation
基金
陕西省2018年度教育信息化专项课题《高校师生信息安全素养培养方案与评价体系研究》(No.18JX010)
陕西省教育厅2017年专项科学研究计划《高等学校学业指导中心的信息化教学模式研究》(No.17JK0727)。
