水产养殖水质pH值无线监测系统设计.pdf

2014年第33卷第11期
传感器与微系统( Transducer and Microsystem Technologies)
DOI:10.13873/J.1000-9787(2014)11-013-04
水产养殖水质pH值无线监测系统设计
胡月明…“°,黄建清2,王卫星,姜晟3,李亮斌
(1.华南农业大学信息学院,广东广州510642;2.海南大学应用科技学院,海南儋州571737;
3.华南农业大学工程学院,广东广州510642;4.国土资源部建设用地再开发重点实验室,广东广州510642;
5.广东省士地利用与整治重点实验室,广东广州510642
摘要:设计了一-种水产养殖pH值无线监测系统,系统传感器节点以MSP430F149单片机为核心,以
nRS05射频芯片为无线通信模块,采用PHG96FS型传感器采集pH值和水温数据。根据pH电极的测量
原理,建立了pH值测量数学模型,采用最佳分段的二次多项式方法拟合温度系数Km曲线,实现了pH值
测量软件温度补偿,提高了测量的准确性。节点软件以 IAR Embedded Workbench为开发环境,采用单片
机C语言开发,实现节点数据采集与处理、无线传输和串口通信等功能。监测中心软件采用VB6.0开发,
为用户提供形象直观的实时数据监测平台。实验结果表明:系统运行稳定,数据传输正常,能够完成水产
养殖水质参数的监测。
关键词:pH值;水产养殖;无线监测系统;数学模型;监测平台
中图分类号:TP274;S959文献标识码:A文章编号:1000-9787(2014〉11-011304
Design of PH value of water quality wireless monitoring
system for aquaculture
HU Yue-ming, HUANG Jian-qing', WANG Wei-xing, JIANG Sheng, LI Liang-bin
(1. College of Information, South China Agricultural University, Guangzhou 510642, China
2. College of Applied Science and Technology, Hainan University, Danzhou 571737, China
3. College of Engineering, South China Agricultural University, Guangzhou 510642, China
4. Key Laboratory of Construction Land Redevelopmenf, Ministry of Land and Resources, Guangzhou 50642, China
5. Key Laboratory of Land Use and Remediation of Guangdong Province, Guangzhou 510642, China
Abstract esign an aquaculture PH value wireless monitoring system, sensor node of system uses MSP430F149
as core, use NRF905 RF chip as wireless communication module, use PHG-96FS sensor to acquire PH value and
datas of water temperature, Establish mathematical model for ph value measurement according to PH electrode
measurement principle for curve fitting of temperature coefficient Ki mathematical model by piecewise quadratic
polynomial fitting method. The node software is compiled using C Language in IAR Embedded Workbench
completes data acquisition and processing, wireless transmission, and serial communication Monitoring software is
compiled using VB 6.0, which provide users with visual image of real-time data monitoring platform. Test results
demonstrate that the system runs stably and data acquisition is normal, thus the system can meet requirements of
aquaculture water quality monitoring
Key words: PH value; aquaculture wireless monitoring s stem; mathematical model; monitoring platform
0引言
为6.0~7.5,最适宜pH值范围为6.5~7、5,pH值高于8
pH值是养殖水体最重要的水质指标之一),我国渔和低于6.0时,黄鳝体表粘液减少,肛门充血肿胀,严重者
业水质标准CB11607-89规定养殖水体鱼类生长的pH值甚至内脏也充血,部分皮肤腐烂。因此,在养殖生产过
安全范围为6.5~8.51,pH值过高或过低,对鱼类都有直程中要经常测量水体的pH值,以便随时了解水质状况,采
接损害,甚至致死。如黄鳝正常生活适宜的水体pH值取相应的调节措施改善水体环境,保证养殖鱼类正常生长。
收稿日期:2014-08-18
*基金项目:国家自然科学基金资助项目(U1301253);国家级星火计划资助项目(2013GA780046);广东省教育部科技部产学研结合项目
(2012B090600052);广东省教育部产学研结合项目(2012B091100484);广东省科技计划资助项目(2011A060901027)