铝电解槽电流分布低功耗无线采集技术研究

发布时间：2018-03-11 22:33

本文选题：SimpliciTI协议　切入点：铝电解　出处：《北方工业大学》2015年硕士论文　论文类型：学位论文

【摘要】：铝电解行业一直属于高耗能产业,特别是近些年随着电价不断上涨,高昂的电费使得铝电解企业承受的生存压力越来越大。国内外相关科技人员针对如何进一步解决节能降耗这个难点问题进行了大量的研究工作,并且逐步形成了统一认知,即通过阳极导杆电流分布监测技术,准确掌握整台电解槽电流分布的实际情况,并作为判断铝电解槽实际工作状态、降低槽电压和预测阳极效应的重要依据,从而达到降低电能消耗,实现高效生产的目的。然而就目前实际情况来看,国内铝电解企业的电流分布监测技术相比国外先进的铝电解企业还有相当大的差距。因此,设计铝电解槽阳极电流分布在线监测系统意义重大。本课题采用TI公司的超低功耗单片机CC430F5137作为核心芯片,以开源的SimpliciTI作为网络协议框架,提出包含现场采集节点、范围扩展节点和数据处理节点的电流分布数据无线采集系统设计方案,并详细阐述了单片机控制模块设计、数据采集模块设计和无线通信模块设计过程,编制实际的通信协议,完成硬件系统的设计制作和网络测试平台搭建工作。基于搭建的硬件平台,分别进行AP、 RE和ED设备的程序设计,实现了现场采集设备、数据中心处理设备、上位机采集端的软件设计,完成了网络节点的加入退出、节点搜索、通信连接、跳频、节点的休眠与唤醒、ED节点数据上传模式切换等功能,确保数据采集与传输的可靠性。使用Qt进行上位机采集端程序设计,实现了在网节点状态显示、采集节点数据读取、节点配置下发等功能。最后完成了整个系统的点对点通信、点对多点通信以及单个终端节点的通信性能测试,结果表明：各节点的通信性能良好,能够准确采集数据并上传至数据中心,实现了对铝电解槽阳极导杆电流分布情况的实时监测。基于以上研究基础,设计了一套适用于铝电解槽阳极电流分布的在线监测系统,并在某铝厂400kA系列电解槽上完成了系统的性能测试,达到了预期效果。
[Abstract]:Aluminum electrolysis industry has always been a high-energy industry, especially in recent years, with the rising of electricity prices, The high electricity cost makes the survival pressure of aluminum electrolysis enterprises more and more heavy. Domestic and foreign scientists and technicians have done a lot of research on how to further solve the difficult problem of saving energy and reducing consumption, and have gradually formed a unified cognition. That is, through the current distribution monitoring technology of anode guide rod, the actual situation of the current distribution of the whole electrolytic cell is accurately grasped, which is an important basis for judging the actual working state of the aluminum reduction cell, reducing the cell voltage and predicting the anode effect. In order to reduce power consumption and achieve efficient production, however, the current distribution monitoring technology of domestic aluminum electrolysis enterprises is far from that of advanced aluminum electrolysis enterprises in foreign countries, in the light of the actual situation at present, the current distribution monitoring technology of domestic aluminum electrolysis enterprises is still quite different from that of foreign advanced aluminum electrolysis enterprises. It is of great significance to design an on-line monitoring system for anode current distribution in aluminum reduction cells. In this paper, the ultra-low power MCU CC430F5137 of TI Company is used as the core chip, and the open source SimpliciTI is used as the network protocol frame. The design scheme of current distribution data wireless acquisition system for extended node and data processing node is presented. The design of single chip microcomputer control module, data acquisition module and wireless communication module are described in detail, and the actual communication protocol is worked out. Finish the hardware system design and build the network test platform. Based on the hardware platform, the program design of APRE and Ed equipment is carried out, and the software design of field acquisition equipment, data center processing equipment and upper computer acquisition terminal is realized, and the network node is added and withdrawn, and the node search is completed. In order to ensure the reliability of data acquisition and transmission, the functions of communication connection, frequency hopping, node dormancy and wake-up Ed node data upload mode switching are ensured. Collection node data reading, node configuration sent down and other functions. Finally, the point-to-point communication, point-to-multipoint communication and the communication performance test of a single terminal node are completed. The results show that the communication performance of each node is good, and the data can be accurately collected and uploaded to the data center. The current distribution of anode guide rod in aluminum reduction cell is monitored in real time. Based on the above research basis, an on-line monitoring system for anode current distribution in aluminum reduction cell is designed. The performance test of the system has been completed in a 400kA series electrolytic cell of an aluminum factory, and the expected effect has been achieved.
【学位授予单位】：北方工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ151;TP274.2

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