Design of wireless sensor network system based on in-field soil water content monitoring

被引：0

作者：

Li Z. ^{[1
,2
]}

Wang N. ^{[2
]}

Hong T. ^{[1
]}

Wen T. ^{[1
]}

Liu Z. ^{[1
]}

机构：

[1] Key Laboratory of Key Technology on Agricultural Machinery and Equipment, Ministry of Education, South China Agricultural University

[2] Department of Biosystems and Agricultural Engineering, Oklahoma State University, Stillwater, 74078

来源：

Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | 2010年 / 26卷 / 02期

关键词：

Precision agriculture; Soil water content; TinyOS; Wireless sensor network;

D O I：

10.3969/j.issn.1002-6819.2010.02.037

中图分类号：

学科分类号：

摘要：

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 60.96 cm 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.

引用

页码：212 / 217

页数：5

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