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CANopen Protocol Based on Intelligent Distributed Control System Design from the Station

Author: ZhangXiaoYang
Tutor: DingBaoCang
School: Hebei University of Technology
Course: Control Science and Control Engineering
Keywords: temperature acquisition canopen atmega128L microcontroller fieldbus
CLC: TP273
Type: Master's thesis
Year: 2010
Downloads: 105
Quote: 0
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Abstract


Reliable weather data observations to improve disaster prevention and mitigation capabilities, prepared to deal with climate change, improve accuracy of weather forecasts predicted the need to ensure high accuracy of the automatic weather observation station data is imperative. In recent years, along with the rapid development of information technology, mature, stable, and advanced electronic measurement, data transmission and control system technology to ensure the accuracy of meteorological data monitoring. With CAN bus technology and micro-controller core built automatic weather stations, can be achieved on the ground meteorological observations total factor automatically.This paper developed a distributed computer control network for the new type of intelligent multi-channel temperature acquisition from the station, successfully CANopen communication protocol used on-site meteorological monitoring temperature acquisition system design, implementation of the meteorological monitoring system, remote monitoring of temperature signals and acquisition. The temperature acquisition from the station to ATmega128L microcontroller core, which can realize 8-channel thermal resistance or thermocouple temperature measurement function, measurement results will be sent to the CANopen master node. CANopen agreement was signed by the MCP2510 with SPI serial interface chips and software protocol stacks have completed. Experimental results show that the data between the master and slave station communication reliable, accurate, real-time measurement and control system to meet the requirements of high reference value and broad application prospects.At present, field bus application and development research is in the rapid stage of development. Fieldbus standard application layer protocol designed to achieve more at home at the initial early stage of development, while industrial Ethernet and fieldbus application layer standard for industrial control networks inevitable trend of development, therefore, designed to study the subject with a broad prospects for development.

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