嵌入式系统的网络服务器-----外文翻译(原文+译文).rar

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嵌入式系统的网络服务器-----外文翻译(原文+译文),after the “everybody-in-the-internet-wave” now obviously follows the“everything-in-the-internet-wave”. the most coffee, vending and washing machines are still n...
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原文档由会员 wanli1988go 发布

After the “everybody-in-the-Internet-wave” now obviously follows the
“everything-in-the-Internet-wave”. The most coffee, vending and washing machines are still not available about the worldwide net. However the embedded Internet integration for remote maintenance and diagnostic as well as the so-called M2M communication is growing with a considerable speed rate.



Just the remote maintenance and diagnostic of components and systems by Web browsers via the Internet, or a local Intranet has a very high weight for many development projects. In numerous development departments people work on completely Web based configurations and services for embedded systems. The remaining days of the classic user interface made by a small LC-display with front panel and a few function keys are over. Through future evolutions in the field of the mobile Internet, Bluetooth-based PANs (Personal Area Network's) and the rapidly growing M2M communication (M2M=Machine-to-Machine) a further innovating advance is to be expected.

The central function unit to get access on an embedded system via Web browser is the Web server. Such Web servers bring the desired HTML pages (HTML=Hyper Text Markup Language) and pictures over the worldwide Internet or a local network to the Web browser. This happens HTTP-based (Hyper Text Transfer Protocol). A TCP/IP protocol stack –that means it is based on sophisticated and established standards– manages the entire communication. Web server (HTTP server) and browser (HTTP client) build TCP/IP-applications. HTTP achieved a phenomenal distribution in the last years. Meanwhile millions of user around the world surf HTTP-based in the World Wide Web. Today almost every personal computer offers the necessary assistance for this protocol. This status is valid more and more for embedded systems also. The HTTP spreads up with a fast rate too.

在“每个人都处在互联网的浪潮中”之后,现在很明显随之而来的是“每件事都处在互联网的浪潮中”。大多数售卖咖啡的机器仍然不能提供全世界的联网。然而嵌入式远程维护和诊断的网络集成就像所谓的M2M通信一样以一种相当快的速度增长。



对很多发展工程来说,仅仅是通过网络浏览器经Internet,或是经过局域网进行组成和系统的远程维护和诊断,负担非常之重。在许多部门中,人们对于嵌入式系统配置和服务的工作完全地基于网络。剩余的时间用前面的面板和一些功能键组成一个小的LC显示结束经典用户界面的制作。随着移动互联网领域将来的发展,可以预期,基于蓝牙技术的个人区域网和快速发展的M2M通信会出现长足的进步。

经过网络浏览器获得进入一个嵌入式系统最主要的功能单元是网络服务器。这种网络服务器给网络浏览器带来全球互联网或局域网上理想的HTML页(HTML —Hypertext Markup Language, 超文本链接标示语言)和图片。这样发生了基于HTTP(HTTP —Hypertext Transfer Protocol, WWW服务程序所用的协议)。一个TCP/IP协议层,意味着基于这个已制定的标准,来管理整个通信。网络服务器(HTTP服务器端)和浏览器(HTTP客户端)构建了TCP/IP的应用软件。HTTP在去年达到了一个显著的区分。其间全世界数以百万计的用户在广域网中使用基于HTTP进行冲浪。今天几乎每一台个人电脑都对这个协议提供了必要的支持。这种状况在嵌入式系统中也越来越多。HTTP在以极快的速度伸展。