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第2期 李 震等：农田土壤含水率监测的无线传感器网络系统设计 217 [13] 刘卉，汪懋华，王跃宣，等．基于无线传感器网络的土壤 温湿度监测系统的设计与开发[J]． 吉林大学学报： 工学版， 2008，38(3：604－608． Liu Hui, Wang Maohua, Wang Yuexuan, et al. Development of farmland soil moisture and temperature monitoring system based on wireless sensor network[J]. Journal of Jilin
University :Engineering and Technology Edition, 2008, 38(3: 604－608. (in Chinese with English Abstract [14] 乔晓军，张馨，王成，等．无线传感器网络在农业中的应 用[J]．农业工程学报，2005，21(增刊 2：232－234． Qiao Xiaojun, Zhang Xin, Wang Cheng, et al. Application of the wireless sensor networks in agriculture[J]. Transactions of the CSAE, 2005, 21(Supp2: 232－234. (In Chinese with English Abstract [15] Li Z. Development of Wireless sensor net work technology in soil property monitoring[D]. Stillwater, USA: Oklahoma State University, 2009. [16] Decagon Device Inc. ECH2O Probe Operator’ s Manual, Version 5[EB/OL]. http://www.decagon.com/ ag_research/ soil/ec5.php, 2006. Design of wireless sensor network system based on in-field soil water content monitoring Li Zhen1,2, Wang Ning2, Hong Tiansheng1※, Wen
Tao1, Liu Zhizhuang1 (1. Key Laboratory of Key Technology on Agricultural Machinery and Equipment of South China Agricultural University, Ministry of Education, Guangzhou 510642, China; 2. Department of Biosystems and Agricultural Engineering, Oklahoma State University, 111 Ag Hall, Stillwater, 74078, USA Abstract: For finding a way to retrieve, transmit and store data in large-scale, full-coverage soil water content monitoring, a wireless sensor network system was developed and tested. The system was composed of ten sensor nodes, one central node to collect data from the sensor nodes and one base node connected to a PC to retrieve, store, and present the data. Soil water contents at four depths, i.e., 5.00, 15.24, 30.48 and 60.96cm below soil surface, were continuously monitored. TinyOS and ZigBee were applied as operation system and communication protocol, respectively. EC-5 low-power and low-cost soil moisture sensor was applied. Solar powering module met the energy requirements of both sensor and central nodes. Packet delivery rate (PDR experiment results indicated that, overall, a stable data transmission was achieved since 7 out of 10 sensor nodes’PDR were higher than 90% and another one was 89.2%. Due to manufacturing imperfection, two sensor nodes’PDR was lower than 70%. This problem was fixed by replacing powering circuits of the two nodes. Key words: precision agriculture, wireless sensor network, soil water content, TinyOS
农田土壤含水率监测的无线传感器网络系统设计 作者： 作者单位： 李震， Wang Ning， 洪添胜， 文韬， 刘志壮 李震(华南农业大学南方农业机械与装备关键技术省部共建教育部重点实验室,广州,510642;华南农业大学南 方农业机械与装备关键技术省部共建教育部重点实验室,广州,510642， Wang Ning,洪添胜,文韬,刘志壮(华 南农业大学南方农业机械与装备关键技术省部共建教育部重点实验室,广州,510642 农业工程学报 TRANSACTIONS OF THE CHINESE SOCIETY OF AGRICULTURAL ENGINEERING 2010，26(2 0次 刊名： 英文刊名： 年，卷(期： 引用次数： 参考文献(16条 1.高峰,俞力,张文安,等.基于作物水分胁迫声发射技术的无线传感器网络精量灌溉系统的初步研究[J].农业工程学报,2008,24(1:6063.Gao Feng,Yu Li,Zhang Wenan,et al.Preliminary study on precision irrigation system based on