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“每個人都處在互聯(lián)網(wǎng)的浪潮中”之后，現(xiàn)在很明顯隨之而來的是“每件事都處在互聯(lián)網(wǎng)的浪潮中”。大多數(shù)售賣咖啡的機器仍然不能提供全世界的聯(lián)網(wǎng)。然而嵌入式遠程維護和診斷的網(wǎng)絡(luò)集成就像所謂的M2M通信一樣以一種相當快的速度增長。



對很多發(fā)展工程來說，僅僅是通過網(wǎng)絡(luò)瀏覽器經(jīng)Internet，或是經(jīng)過局域網(wǎng)進行組成和系統(tǒng)的遠程維護和診斷，負擔非常之重。在許多部門中，人們對于嵌入式系統(tǒng)配置和服務(wù)的工作完全地基于網(wǎng)絡(luò)。剩余的時間用前面的面板和一些功能鍵組成一個小的LC顯示結(jié)束經(jīng)典用戶界面的制作。隨著移動互聯(lián)網(wǎng)領(lǐng)域?qū)淼陌l(fā)展，可以預(yù)期，基于藍牙技術(shù)的個人區(qū)域網(wǎng)和快速發(fā)展的M2M通信會出現(xiàn)長足的進步。

經(jīng)過網(wǎng)絡(luò)瀏覽器獲得進入一個嵌入式系統(tǒng)最主要的功能單元是網(wǎng)絡(luò)服務(wù)器。這種網(wǎng)絡(luò)服務(wù)器給網(wǎng)絡(luò)瀏覽器帶來全球互聯(lián)網(wǎng)或局域網(wǎng)上理想的HTML頁（HTML —Hypertext Markup Language, 超文本鏈接標示語言）和圖片。這樣發(fā)生了基于HTTP（HTTP —Hypertext Transfer Protocol, WWW服務(wù)程序所用的協(xié)議）。一個TCP/IP協(xié)議層，意味著基于這個已制定的標準，來管理整個通信。網(wǎng)絡(luò)服務(wù)器（HTTP服務(wù)器端）和瀏覽器（HTTP客戶端）構(gòu)建了TCP/IP的應(yīng)用軟件。HTTP在去年達到了一個顯著的區(qū)分。其間全世界數(shù)以百萬計的用戶在廣域網(wǎng)中使用基于HTTP進行沖浪。今天幾乎每一臺個人電腦都對這個協(xié)議提供了必要的支持。這種狀況在嵌入式系統(tǒng)中也越來越多。HTTP在以極快的速度伸展。