New methodologies in precision irrigation, aimed at monitoring and controlling the irrigation based on the crop water demand, allow to improve the water use efficiency in the agricultural production process. Measuring the soil water content to determine how much and when to irrigate is one way to control the crop irrigation. This work presents the development and setup of a wireless monitoring network of measurement stations based on embedded systems, that concentrate measurement of soil moisture, pressure in the irrigation lines, and water flow. A base station coordinates the communication with the measurement stations, saves the data in a local database and then upstream the data to a web server so the information can be remotely accessed. The design of the measurement stations is based on a microcontroller, MC9S08QE32 from NXP, while the base station is based on a Raspberry Pi3. The communication between the nodes is performed at 470MHz in a mesh mode configuration. In order to show the performance and reliability of the proposed system, results obtained from three irrigation treatments monitoring in a tomato crop are presented.

中文翻译：

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基于嵌入式系统的滴灌系统监测和故障检测传感器网络

精准灌溉的新方法，旨在根据作物需水量监测和控制灌溉，可以提高农业生产过程中的用水效率。测量土壤含水量以确定灌溉量和灌溉时间是控制作物灌溉的一种方法。这项工作介绍了基于嵌入式系统的测量站无线监测网络的开发和设置，该网络集中测量土壤湿度、灌溉管道中的压力和水流。基站协调与测量站的通信，将数据保存在本地数据库中，然后将数据上传到网络服务器，以便远程访问信息。测量站的设计基于 NXP 的微控制器 MC9S08QE32，而基站基于树莓派3。节点之间的通信在网状模式配置中以 470MHz 频率执行。为了展示所提出系统的性能和可靠性，展示了从番茄作物中的三种灌溉处理监测中获得的结果。