Automatic irrigation system based on farmland moisture monitoring

Abstract

The invention provides an automatic irrigation system based on farmland moisture monitoring which comprises a wireless sensor network for monitoring the moisture condition of the crop in the farmland,the wireless sensor network comprises a convergent node and sensor nodes randomly deployed throughout the farmland, the sensor nodes acquire the crop moisture condition data of the monitored positions and send the crop moisture condition data to the convergent node; the system also comprises a data analysis device for performing irrigation demand analysis according to crop moisture condition datasent by the convergent node; the sensor nodes are connected with a direct current electromagnetic valve used for controlling an irrigation device and receives the signal of the data analysis device in real time; the data analysis device sends a control signal to a corresponding sensor node when the irrigation is needed for the crop, so that the sensor node controls the corresponding direct current electromagnetic valve according to the control signal, opens the irrigation device and carries out precise irrigation.

Description

technical field [0001] The invention relates to the field of agricultural monitoring devices, in particular to an automatic irrigation system based on farmland water monitoring. Background technique [0002] The existing crop moisture status real-time monitoring system also has the following obvious deficiencies: [0003] (1) The communication technology mainly adopts wired communication technologies such as serial bus technology and field bus technology. Although it has the advantages of good equipment interoperability and strong anti-interference ability, the actual application environment has long-term high temperature, humidity, soil and The air has the characteristics of high acidity and alkalinity, which can easily lead to the aging of communication cables, thereby reducing the reliability of the system; [0004] (2) The sensor works in a wired mode. In actual agricultural production applications, sensor nodes need to be densely distributed to achieve effective covera...

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Problems solved by technology

[0003] (1) The communication technology mainly adopts wired communication technologies such as serial bus technology and field bus technology. Although it has the advantages of good equipment interoperability and strong anti-interference ability, the actual application environment has long-term high temperature, humidity, soil and The air has the characteristics of high acidity and alkalinity, which can easily lead to the aging of communication cables, thereby reducing the reliability of the system;

[0004] (2) The sensor works in a wired mode. In actual agricultural production applications, sensor nodes need to be densely distributed to achieve effective coverage of the monitoring area. This will lead to criss-crossing cables inside agricultural facilities, and the cost of system installation and maintenance will increase sharply.

These factors greatly limit the promotion and application of research results in actual production.

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