| 基于ZigBee的水质pH值在线监测系统 |
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| 引用本文： | 赵小强,冯勋.基于ZigBee的水质pH值在线监测系统[J].西安邮电学院学报,2014,19(6):71-75. |
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| 作者姓名： | 赵小强 冯勋 |
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| 作者单位： | 西安邮电大学通信与信息工程学院,陕西西安,710121 |
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| 基金项目： | 工业和信息化部通信软科学研究计划资助项目，陕西省教育厅服务地方专项基金资助项目，西安邮电大学研究生创新基金资助项目 |
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| 摘 要： | 为了提高在水质pH值监测中的实时性与测量精度,设计一种基于ZigBee的水质pH值在线监测系统。该系统由数据采集节点、数据汇聚节点与监测中心计算机构成,其中数据采集节点采用STM32微处理器进行实时数据采集,并使用CC2530无线射频芯片将采集到的水质数据通过ZigBee网络转发至数据汇聚节点,数据汇聚节点负责将水质数据通过串口实时传输至监测中心计算机。系统采用二维回归方程对水质数据进行融合处理,以减小温度对pH值测量精度的影响。测量数据对比性实验结果显示,系统具有较好的实时性和测量精度,能够满足水质pH值监测需要。
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| 关 键 词： | pH值 ZigBee STM32 温度补偿 |
A pH value online monitoring system based on ZigBee |
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| ZHAO Xiaoqiang,FENG Xun.A pH value online monitoring system based on ZigBee[J].Journal of Xi'an Institute of Posts and Telecommunications,2014,19(6):71-75. |
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| Authors: | ZHAO Xiaoqiang FENG Xun |
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| Affiliation: | (School of Communication and Inforrmtion Engineering, Xi＇an University of Posts and Telecommunications, Xi＇an, 710121, China) |
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| Abstract: | In order to improve the real-time performance and measurement accuracy of water pH value monitoring,apH value online monitoring system based on ZigBee is designed in this paper.The system consists of data collection nodes,a sink node and a monitoring computer.The STM32 microcontroller is used to collect the data in data collection nodes,and TI CC2530 RF chip is used to send the data to sink node by ZigBee wireless network.All network data are sent to monitoring computer by serial port in sink node.In addition,measurement data are fused by two-dimensional regression equation to reduce the temperature effect on the pH measurement accuracy.Measurement data comparative experiments show that the whole system has better real-time performance and higher measurement accuracy,and therefore can meet the requirements of pH monitoring system. |
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| Keywords: | pH ZigBee STM32 temperature compensation |
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