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| A design of an IOT irrigation management system with large-scale nodes |
| WANG Zhiqiang1, NIU Dandan1, WANG Jiaxing1, GAO Xin1, WU Hao2, XIA Qian1, JIANG Yongnian3, GUO Ya1* |
| 1. Key Laboratory of Advanced Process Control for Light Industry(Ministry of Education), School of Internet of Things Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China; 2. Jiangsu Internet Agricultural Development Center, Nanjing, Jiangsu 210017, China; 3. Jiangsu Zhongnong Internet of Things Technology Co., Ltd., Yixing, Jiangsu 214200, China |
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Abstract Currently, most of existing agricultural Internet-of-Things(IOT)systems for intelligent irrigation are difficult to meet the needs of practical irrigation monitoring and management with a large range of multiple distribution points. Aiming at the demand of monitoring and management of mass water node for large-scale agricultural irrigation at the present stage, a system was designed to query the data of measurement points and manage the detection sites based on the commonly used MODBUUS-RTU protocol and TCP protocol in industry. The sensor of measurement points can use any flow sensor that meets the requirements of the protocol. Two service processes were designed: IOT server and WEB server. The IOT server is responsible for querying and obtaining data from the electromagnetic flowmeter and uploading it to the database, solving the problems of protocol identification and analysis and high concurrency, and improving the system′s ability to handle a large number of monitoring nodes. The Web server queries the corresponding data information from the database and carries on the permission management to facilitate the expansion of the system scale. In order to facilitate the system management, the WeChat small program with the functions of data query and equipment management was designed and developed. The irrigation IOT system designed in this paper, on the basis of basic irrigation monitoring, takes into account practical problems such as large-scale node deployment, massive data concurrency, system authority control, and provides a feasible solution for water-saving irrigation.
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Received: 22 February 2020
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