An integrated observation system for rice water demand

Abstract

The invention provides an integrated observation system for the rice water requirement. The system comprises a water level observation well, a seepage measuring cylinder, a data acquisition device, amulti-path selection switch, an analog-digital converter, an F / V converter, a microprocessor, a data transmission module, a power supply module and a human-computer interaction unit. The water level observation well and the seepage measuring cylinder are all built in the paddy field. The data acquisition device comprises a water level sensor, a rainfall sensor and a liquid flowmeter. The water level sensor, the rainfall sensor and the liquid flowmeter are used for respectively collecting the depth of a field water layer and the depth of the water layer of the seepage measuring cylinder, the rainfall and the field water irrigation and drainage amount. The microprocessor packages all digital signals and then sends the digital signals to the human-computer interaction unit through the data transmission module. The human-computer interaction unit receives the digital signals, completes data storage, calculates the rice water requirement and displays a result. The power supply module supplies power to all electricity utilization modules. According to the invention, the water layer depth of the paddy field, the water layer depth of the seepage measuring cylinder, the rainfall and the field irrigation amount are continuously and accurately acquired in real time, and then the rice water requirement is calculated. The manual calculation is not needed, and the accuracy of the rice irrigation test result is guaranteed.

Description

technical field [0001] The invention relates to the technical field of agricultural water conservancy, in particular to an integrated observation system for rice water demand. Background technique [0002] Rice is the most widely planted food crop in my country. Affected by the shortage of water resources and uneven spatial distribution, many areas have problems such as insufficient water resources. Therefore, it is of great significance to promote rice water-saving irrigation technology in rice planting areas to promote agricultural production. [0003] Irrigation testing is a comprehensive science that focuses on how water resources can be used most efficiently by plants for maximum benefit. Therefore, carrying out rice irrigation experiments and accurately observing the water demand of rice in the experiments can provide an important basis for rice water-saving irrigation. The water demand of rice is affected by water balance factors such as crop evapotranspiration, rai...

AI Technical Summary

Problems solved by technology

However, in the current irrigation experiment, the method of observing the water demand of rice still adopts manual daily observation of the water level, resulting in problems such as less data collection, discontinuous, untimely, and large subjective observation errors of observers; especially for large areas In the irrigation area where rice is grown, a lot of labor is required to increase the cost, and the collected data cannot be processed in a timely and accurate manner, which affects the accuracy of the rice irrigation test results

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