随着我国工程建设的发展,对地球投影变换精度提出了更高的要求,尤其是高铁工程建设,其投影变换精度要求B表达的高斯变换式,本文给出了同一表达格式的基于等角纬度φ表达的高斯投影变换式。从实用角度出发,利用Excel VBA计算平台,以实数...随着我国工程建设的发展,对地球投影变换精度提出了更高的要求,尤其是高铁工程建设,其投影变换精度要求B表达的高斯变换式,本文给出了同一表达格式的基于等角纬度φ表达的高斯投影变换式。从实用角度出发,利用Excel VBA计算平台,以实数等角纬度为变换参数,采用大地坐标增量法及空间直角坐标法作为膨胀变换方法,开发了异面高斯投影变换宏,一键实现坐标的批量变换。椭球膨胀坐标偏位(Dx,Dy)主要由椭球长半轴增量da所贡献,且与da呈线性增长。With the development of engineering construction in our country, higher requirements have been put forward for the accuracy of earth projection transformation, especially for high-speed railway engineering construction, which requires a projection transformation accuracy of B, this article presents a Gaussian projection transform expression based on equiangular latitude φ expression using the same expression format. From a practical perspective, using the Excel VBA computing platform, taking real isometric latitude as the transformation parameter, and adopting the geodetic coordinate increment method and spatial Cartesian coordinate method as the expansion transformation method, different surface Gaussian projection transformation macros were developed to achieve batch transformation of coordinates with one click. The offset (Dx,Dy)of ellipsoidal expansion coordinates is mainly contributed by the increment daof the ellipsoidal semi axis, and it increases linearly with da.展开更多
在当前物联网技术迅猛发展的背景下,数据采集与处理成为关键环节,但现有系统多存在复杂度高、灵活性不足及与常用办公软件兼容性差等问题。本研究旨在通过设计基于Excel VBA(visual basic for applications)的物联网数据采集与处理系统...在当前物联网技术迅猛发展的背景下,数据采集与处理成为关键环节,但现有系统多存在复杂度高、灵活性不足及与常用办公软件兼容性差等问题。本研究旨在通过设计基于Excel VBA(visual basic for applications)的物联网数据采集与处理系统,解决上述问题。研究结果表明:该系统能高效采集、传输、存储及处理物联网数据,且兼容Excel环境,便于用户进行数据分析与决策。此研究对于提升物联网数据处理的便捷性和效率具有重要意义,为物联网技术与办公软件的融合应用提供了新思路。展开更多
文摘随着我国工程建设的发展,对地球投影变换精度提出了更高的要求,尤其是高铁工程建设,其投影变换精度要求B表达的高斯变换式,本文给出了同一表达格式的基于等角纬度φ表达的高斯投影变换式。从实用角度出发,利用Excel VBA计算平台,以实数等角纬度为变换参数,采用大地坐标增量法及空间直角坐标法作为膨胀变换方法,开发了异面高斯投影变换宏,一键实现坐标的批量变换。椭球膨胀坐标偏位(Dx,Dy)主要由椭球长半轴增量da所贡献,且与da呈线性增长。With the development of engineering construction in our country, higher requirements have been put forward for the accuracy of earth projection transformation, especially for high-speed railway engineering construction, which requires a projection transformation accuracy of B, this article presents a Gaussian projection transform expression based on equiangular latitude φ expression using the same expression format. From a practical perspective, using the Excel VBA computing platform, taking real isometric latitude as the transformation parameter, and adopting the geodetic coordinate increment method and spatial Cartesian coordinate method as the expansion transformation method, different surface Gaussian projection transformation macros were developed to achieve batch transformation of coordinates with one click. The offset (Dx,Dy)of ellipsoidal expansion coordinates is mainly contributed by the increment daof the ellipsoidal semi axis, and it increases linearly with da.
文摘在当前物联网技术迅猛发展的背景下,数据采集与处理成为关键环节,但现有系统多存在复杂度高、灵活性不足及与常用办公软件兼容性差等问题。本研究旨在通过设计基于Excel VBA(visual basic for applications)的物联网数据采集与处理系统,解决上述问题。研究结果表明:该系统能高效采集、传输、存储及处理物联网数据,且兼容Excel环境,便于用户进行数据分析与决策。此研究对于提升物联网数据处理的便捷性和效率具有重要意义,为物联网技术与办公软件的融合应用提供了新思路。
