基于无线传感器网络的水泥厂罗茨风机温度监测装置

发布时间：2018-01-30 04:07

  本文关键词： 罗茨风机 无线传感器网络 温度监测 低功耗 可靠性　出处：《武汉理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：水泥工业的最重要问题是确保回转窑连续正常运转[1]。在水泥企业中大量使用的罗茨风机设备分布在窑两侧,数量可多达十余台,且分散分布在数十米甚至数百米的范围内。在窑头的罗茨风机组担负着提供高压空气,将煤粉吹入回转窑的重要任务[2]。罗茨风机工作时,由于各种等原因,会造成罗茨风机的温度高于正常值而发生故障,需要采取降温手段保证罗茨风机正常工作。因此,需要对罗茨风机温度进行在线监测,防止其意外停机故障发生,为窑正常生产创造保障条件。工业无线传感器网络相对于分散大区域传感器有线布放方式成本更低,更易于安装和维护。因此本文设计了一种基于无线传感器网络的水泥厂罗茨风机温度监测装置预测设备故障。主要工作如下:1.把降低节点功耗作为最为关键的性能要求,尽可能选用功耗低的器件完成无线传感器网络传感器节点、路由器节点和协调器节点的硬件设计和制作;2.无线传感器节点分布在各个监测点,温度数据采集和无线传输程序烧入其微控制器中,采集的温度数据通过微控制器串行口发送至XBee无线模块,通过无线方式根据传输距离的远近传输至路由器节点再转至协调器节点或直接至协调器节点,由上位机对数据进行处理;3.对于长期采样数据可能出现的校验错误,采用重发操作,对于可能出现的尖峰,采用一种改进的数字滤波算法进行处理,取得高可靠性和低能耗两者的平衡。4.根据需要对本系统运行参数进行重配置,包括采样周期,温度报警触发值,传输功率和信道频率等参数。本系统经过连续3天时间的工作,试验数据证明其节点温度数据采集和处理工作可靠。按照其功耗进行计算,本系统能够3个月或更长时间不更换电池,基本满足对罗茨风机温度监测的需求。
[Abstract]:The most important problem in cement industry is to ensure the continuous operation of rotary kiln. [1]. The Roots fan equipment widely used in cement enterprises is distributed on both sides of the kiln, and the quantity can be as many as ten sets. The Roots wind unit at the kiln head is responsible for providing high pressure air and blowing pulverized coal into the rotary kiln. [2]. When the Roots fan is working, the temperature of the Roots fan will break down due to various reasons, so it is necessary to adopt cooling measures to ensure the normal operation of the Roots fan. It is necessary to monitor the temperature of Roots fan on line to prevent its unexpected shutdown. The industrial wireless sensor network has lower cost compared with the distributed large area sensor wired arrangement mode. It is easier to install and maintain. Therefore, this paper designs a temperature monitoring device of Roots fan for cement plant based on wireless sensor network to predict the failure of the equipment. The main work is as follows:. 1. Reducing node power consumption is the most critical performance requirement. The hardware design and fabrication of sensor node, router node and coordinator node of wireless sensor network are accomplished by using devices with low power consumption as far as possible. 2. Wireless sensor nodes are distributed in each monitoring point, temperature data acquisition and wireless transmission program burn into its microcontroller, and the collected temperature data is sent to XBee wireless module through microcontroller serial port. The data is processed by the host computer through wireless transmission to the router node or directly to the coordinator node according to the distance of transmission. 3. Retransmission operation is used for checking errors that may occur in long-term sampling data, and an improved digital filtering algorithm is used to deal with possible peaks. Achieve high reliability and low energy consumption balance. 4. According to the need to reconfigure the system operating parameters, including sampling cycle, temperature alarm trigger value. Transmission power and channel frequency and other parameters. After 3 days of continuous work, the test data show that the node temperature data acquisition and processing is reliable and calculated according to its power consumption. The system can not replace the battery for 3 months or longer, basically meet the needs of the Roots fan temperature monitoring.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ172.8;TN929.5;TP212.9
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本文编号：1475248