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The design and development of intelligent access control system based on fieldbus technology

Author: ZhangBo
Tutor: WangShiQing
School: Zhengzhou University
Course: Computer Software and Theory
Keywords: Fieldbus control system CAN Intelligent access
CLC: TP273.5
Type: Master's thesis
Year: 2003
Downloads: 238
Quote: 0
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Abstract


The rapid development of information technology , caused by a change of the structure of automation systems , and gradually form a network integrated automation system based enterprise information system . Fieldbus is going with this development of new technologies . Fieldbus is today one of the hot spots of the development of the field of automation technology , known as the field of automation computer LAN . Fieldbus is used in the production site , multi-node bidirectional serial digital communication system between computerized measurement and control equipment , also known as an open , digital, low-level control of multi-point communication network . It has broad application prospects in manufacturing , process industry , transportation , buildings automation system . CAN has been formed with international standards , and has been recognized as some of the most promising one of the fieldbus . It belongs to the bus serial communication network , because of its unique multi-master work , short frame structure , non - destructive bus arbitration and checksum error detection measures , compared with general communication bus , outstanding reliability , real-time and flexibility CAN has been widely used in automobiles, trains, intelligent buildings , robots , fire management , automation instrumentation, and other fields . The topic \the expected target . This paper is divided into five parts , first introduced the development of fieldbus types and characteristics , and then details the characteristics of CAN bus technology , and finally focuses on the key technologies for intelligent access control system using CAN bus technology specific implementation and system should pay attention to the design .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system > Computer control, computer control system
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