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机构地区:[1]江苏常州轻工职业技术学院,江苏常州213164 [2]江苏大学电气信息工程学院,江苏镇江212013
出 处:《东北师大学报(自然科学版)》2013年第4期71-76,共6页Journal of Northeast Normal University(Natural Science Edition)
基 金:江苏省工业科技攻关项目(BE2006090);江苏省常州市科技支撑项目(CE20112016);江苏大学科技创新基金资助项目(1293000492)
摘 要:根据电导率法测量盐度和电桥法测量温度的原理,设计了一种具有无线收发和自动温度补偿功能的盐度和温度检测仪.该仪表将测量的盐度和温度值通过无线射频芯片nRF2401发送到上位机,nRF2401在C8051F310单片机的控制下,工作于ShockBurst TM收发模式,可实现半双工通信,上位机监控系统软件在Visual Basic6.0环境下编写,根据现场环境和应用的要求,构建了兼具星型和网状结构的混合型无线传感器网络,采用查询/回复工作模式,使用了简单成熟的TDMA通信协议.结果表明:该仪表工作稳定、测量精度高、操作简单;最大通信距离在300m左右,且通信可靠.According to the elements of salinity measurement by conductance and temperature measurement by bridge resistance, an instrument with the function of wireless transceiver and automatic temperature compensation was designed to measure salinity and temperature. The metrical data was sent to the host PC through nRF2401, a single chip 2.4GHz transceiver. By the control of C8051F310 MCU, nRF2401 worked in ShockBurstTM pattern and could realize full-duplex communication. The monitoring system of the host PC was designed in Visual Basic 6.0. According to the field environment and application request, the mixed wireless sensor network was constructed with both the star and reticular structure, using query/reply working mode and simple mature TDMA communication protocol. The actual application indicates that this instrument has a relatively fine precision and simple manual operation. The longest distance of the wireless communication is about 300 meters. And the communication is credibility.
关 键 词:盐度 温度 C8051F310单片机 NRF2401 无线通信
分 类 号:TP393.7[自动化与计算机技术—计算机应用技术]
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