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机构地区:[1]阿坝师范高等专科学校电子信息工程系,四川汶川623002
出 处:《贵州师范大学学报(自然科学版)》2013年第2期87-91,共5页Journal of Guizhou Normal University:Natural Sciences
基 金:教育部春晖计划合作科研项目(编号:Z2010100)
摘 要:针对以往土壤数据采集和监控系统中节点通信能力有限和功耗高等问题,提出了一种基于3G模块和无线传感器网络的土壤实时监控系统设计方案。首先,提出了系统的总体结构模型,然后对传感器和网关节点进行了硬件设计,以ATmega128L作为微处理器,nRF905射频收发芯片及外围电路作为无线通信模块,EM560作为3G通信模块,并采用L2610281和BD-2分别作为土壤温湿度和水分传感器,以节点为硬件基础编写了网络协议和客户端应用程序。通过远程客户端测试表明文中系统可以正确、实时地采集土壤的温湿度和含水量等信息,在参数超过阀值时,能启动电磁阀进行灌溉,具有很强的可行性。Aiming at the existing monitoring system for soil has the difficulty of short communication capability and high power consumption, a program based on 3 G technology and wireless sensor network was designed. Firstly, the main structure of system was given, then the hardware of sensor and the gateway was designed, using ATmega128L as the MCU, nRF905 RF transceiver chip and the addition- al peripheral circuits as the wireless communication module, EM560 as the 3G communication module, L2610281 and BD-2 were used as the soil temperature and humidity sensor and water sensor respectively, then the software of network protocol and client application were coded. The test of client shows the system in this paper can collect the temperature, humidity and water information, and when the value of parameter is beyond the threshold, the solenoid valve will be started. It is proved to be feasible.
分 类 号:TP391[自动化与计算机技术—计算机应用技术]
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