面向电力终端设备远程升级的文件切片传输方法

File slicing and transfer method for remote upgrading of power terminal equipment

提出了一种面向电力终端设备远程升级的文件切片传输方法,包括:构建支持HTTP协议服务的文件服务器、支持远程升级文件下载的HTTP客户端程序和基于4G移动传输网络的三种类型实体组成的网络数据传输模型。通过扩展HTTP协议,在服务端实现对文件长度的定量切片和在客户端实现对数据传输的位置记录,通过多线程技术实现数据文件分片传输以及断点续传,在有限的网络带宽和复杂的网络环境中最大化减少数据传输成本,可以有效提高数据传输的效率。

A file slicing transmission method for remote upgrade of power terminal equipment is proposed,including:building a file server supporting HTTP protocol services,an HTTP client program supporting remote upgrade file download and a network data transmission model consisting of three types of entities based on 4G mobile transmission network.By extending the HTTP protocol to achieve quantitative slicing of file length on the server side and location recording of data transmission on the client side,and by realizing data file slicing transmission as well as breakpoint sequential transmission through multi-threading technology,the data transmission cost can be maximized and reduced in a limited network bandwidth and complex network environment,which can effectively improve the efficiency of data.