文章基本信息

标题：Design of HART modem on AVR microcontroller for Smart Transmitter
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作者：Tripti Gupta ; Sharmelee Thangjam
期刊名称：International Journal of Electronics and Computer Science Engineering
电子版ISSN：2277-1956
出版年度：2012
卷号：1
期号：3
页码：1092-1096
出版社：Buldanshahr : IJECSE
摘要：The majority of smart field devices installed worldwide today are HART-enabled. The HART (Highway Addressable Remote Transducer) Protocol is the global standard for sending and receiving digital information across analog wires between smart devices and control or monitoring system. It is a bi-directional communication protocol that provides data access between intelligent field instruments and host systems. HART technology offers a reliable, long-term solution for plant operators who seek the benefits of intelligent devices with digital communication. Most automation networks in operation today are based on traditional 4-20mA analog wiring, HART technology serves a critical role because the digital information is simultaneously communicated with the 4-20mA signal. The HART protocol directly contributes to cost savings in: Commissioning and installation, Plant operations, Maintenance. Transmitter that supports HART protocol is known as Smart Transmitter. Today's smart transmitters go beyond reporting a single variable. They use microprocessors to archive a variety of information, including calibration settings, operating conditions, and other diagnostic data.This paper discusses the design of HART modem on AVR microcontroller without using a dedicated HART modem chip
关键词：AVR; HART protocol