期刊名称：International Journal of Computer Technology and Applications
电子版ISSN：2229-6093
出版年度：2012
卷号：3
期号：3
页码：916-924
出版社：Technopark Publications
摘要：Because the Internet is becoming more widespread, there was the possibility of communication with automation systems for configuration, reprogramming or control in real time. For this, the automation system needs a physical communication port with the network. This paper presents the design and implementation of such Ethernet interface for automation system with microcontroller, mainly analysing web page by making use of Protocols on AVR microcontroller and it focuses on the adoption of Agent Technology to analyse and evaluate the Web Content Traditional Web traffic analysis metrics such as page views, unique browser, visitor loyalty, etc have been used to analyse the Web traffic behaviour for a long time since the birth of World Wide Web, but the emersion of software robots and Web crawlers trigger a huge impact on the integrity and correctness of these traditional Web statistics. The connection between the automation system and the interface is made via an SPI (Serial Peripheral Interface) port. The main element of the interface is a chip named ENC28J60 manufactured by Microchip. It is designed to serve as an Ethernet network interface for any controller equipped with SPI. ENC28J60 meets all specifications of IEEE 802.3 having incorporated MAC and PHY modules. It also provides an internal mode DMA for fast data transfer and hardware for TCP/IP. With ENC28J60, an RJ45 connector and a few passive components we can connect a microcontroller to a 10 Mbps network. The access of ENC28J60 controller is done through configuration registers and memory. The interpretation of data to extract useful information is done by software routines. These interfaces have multiple applications: Remote monitoring of a system or industrial process, can be accessed on mobiledevices with Internet connection, domestic applications.
