Remote farmland irrigation monitoring system based on wireless sensor networks
YU Xiao-Qing, WU Pu-Te, HAN Wen-Ting, ZHANG Zeng-Lin
(1.College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; 2. Institute of Soil and Water Conservation, CAS & MWR, Yangling, Shaanxi 712100, China; 3. College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China)
Abstract:A remote irrigation monitoring system, in which soil moisture monitoring, pump and electromagnetic valve control and data remote management are integrated, was designed to realizes automatic control on irrigation for saving water. In the system, the wireless sensor network nodes were developed with the 433 MHz core frequency to accomplish a real-time monitoring for soil temperature and moisture in farmland. Base stations were built based on ARM9 microprocessor S3C2410, where the operation of pumps and electromagnetic valves was controlled by comparing with the stored thresholds in the database. The remote realtime monitoring of irrigation system was conducted through GPRS wireless transmission, and the Citect configuration software was used in the remote monitoring center for the data and HMI (humanmachine interface) management. In the application, four groups of wireless sensor nodes were chosen. The soil temperatures and moistures in 25 cm depth were acquired by the system in the 30 min data sampling interval. The operation of the pumps and valves in the base stations was controlled according to the soil information just obtained. This information was also transmitted to the remote monitoring center through the GPRS wireless network. It was showed that the system is flexible in use, low power consumption and with a friendly HMI. It can better meet the demand on application of farmland irrigation remote monitoring.
[1]李楠,刘成良,李彦明,等.基于3S技术联合的农田墒情远程监测系统开发[J].农业工程学报,2010,26(4):169-174.Li Nan, Liu Chengliang, Li Yanming, et al. Development of remote monitoring system for soil moisture based on 3S technology alliance[J]. Transactions of the CSAE, 2010,26(4): 169-174. (in Chinese)[2] 张增林,郁晓庆,拓延生. 基于混合WSN的智能灌溉远程SCADA系统[J].节水灌溉,2012 (1):57-60.Zhang Zenglin, Yu Xiaoqing, Tuo Yansheng. Remote SCADA system for intelligent irrigation based on hybrid WSN[J]. Water Saving Irrigation,2012 (1):57-60.(in Chinese)[3] 韩安太,何勇,陈志强,等. 基于无线传感器网络的茶园分布式灌溉控制系统[J]. 农业机械学报,2011,42(9):173-180.Han Antai, He Yong, Chen Zhiqiang, et al. Design of distributed precision irrigation control system based on wireless sensor network for tea plantation[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(9):173-180. (in Chinese)[4] Khichar R, Upadhyay S S. Wireless sensor networks and their applications in geomatics: Case study on developments in developing countries [J]. Applied Geomatics, 2012,2(2): 43-48.[5]Ole Green, Esmaeil S Nadimi, Victoria Blanes Vidal, et al. Monitoring and modeling temperature variations inside silage stacks using novel wireless sensor networks [J]. Computers and Electronics in Agriculture, 2009, 69(2):149-157.[6] 郁晓庆,张增林. 基于STC89C52和GSM的灌溉远程监控系统 [J]. 节水灌溉,2011(4):55-57.Yu Xiaoqing, Zhang Zenglin. Remote monitoring system for irrigation based on STC89C52 and GSM [J]. Water Saving Irrigation, 2011 (4): 55-57. (in Chinese)[7] Li Li, Mehmet C Vuran, Ian F Akyildiz. Characteristics of underground channel for wireless underground sensor networks[C]∥Proceedings of the Sixth Annual Mediterranean Ad Hoc Networking Workshop. Corfu,Greece:[s.n.],2007:12-15.[8] Ian F Akyildiz, Erich P Stuntebeck. Wireless underground sensor networks: Research challenges[J]. Ad Hoc Networks,2006,4 (6):669-686.[9] A R Silva, Mehmet C Vuran. Communication with above devices in wireless underground sensor networks: An empirical study[C]∥Proceedings of the Communications (ICC), 2010 IEEE International Conference. Cape Town:[s.n.], 2010:23-27.[10] Mehmet C Vuran, Ian F Akyildiz. Channel model and analysis for wireless underground sensor networks in soil medium [J].Physical Communication, 2010, 3(4):245-254.[11] Ritsema C J, Henk K, Leon K. A new wireless underground network system for continuous monitoring of soil water contents[J]. Water Resources Research, 2009, 46(4):1-9.[12] 张西良,张卫华,李萍萍,等. 基于GSM的室内无线传感器网络簇头节点[J]. 江苏大学学报:自然科学版,2010,31(2):196-200.Zhang Xiliang, Zhang Weihua, Li Pingping, et al. Head node of indoor wireless sensor network based on GSM [J].Journal of Jiangsu University:Natural Science Edition,2010,31(2):196-200. (in Chinese)[13]Lpez Riquelme J A , Soto F, Suardiaz J, et a1. Wireless sensor networks for precision horticulture in Southern Spain[J]. Computers and Electronics in Agriculture, 2009, 68(1):25-35.