Study on a User-Defined and Low Cost Fieldbus Technology

摘要

A low cost fieldbus is defined and its protocol and electric code are elaborated in detail upon which a demonstration project is built. These fieldbus own certain market share in international market and have their own advantages and disadvantages. However, one common disadvantage of these products is their high costs which restrict their application in automatic field. With improvement of life quality, quickening tempo of life, and edification of modern communication technology, it is an undisputable fact that modern management is required in agriculture, industry, and civilian field.