Water, fertilizer and pesticide integrated self-diagnosis irrigation expert system control device

Abstract

The invention provides a water, fertilizer and pesticide integrated self-diagnosis irrigation expert system control device which comprises a sensor input circuit, an electromagnetic valve fault detection circuit, a proportional valve driving circuit, an MCU1, an SD memory circuit, an MCU2, an MCU3, a GPRS DTU module, an interface chip 8255 and a memory 6116, wherein a control port of the sensor input circuit is connected with a P3 port of the MCU1, and a D/A port of the sensor input circuit is connected with the proportional valve driving circuit; and the MCU1 is a master controller, a serial port A of the MCU1 is connected with a serial port A of the MCU2, a serial port B of the MCU1 is connected with a serial port B of the MCU3, the MCU1 is also connected with the SD memory circuit, a serial port B of the MCU2 is connected with the GPRS DTU module so as to carry out wireless data communication, and a serial port A of the MCU3 is connected with the serial port B of the MCU2 so as to be used as a communication backup interface. The device provided by the invention realizes spray of fertilizers and pesticides and realizes automation of agricultural management; the three MCU systems are adopted to realize control accuracy and are matched with the shared memory to realize information exchange; and the system performs self-diagnosis and localization of faults, and data communication adopts a key data header so as to guarantee the confidentiality and safety of the data communication.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a control device for an integrated self-diagnosis irrigation expert system of water, fertilizer and medicine. Background technique [0002] Water is an irreplaceable basic element in all life processes, and water resources are an important basic resource for national economic and social development. my country is one of the 13 water-poor countries in the world, with a per capita water resource of 2,300 cubic meters, only a quarter of the world's per capita level, ranking 109th in the world. Moreover, the temporal and spatial distribution is very uneven, with more in the south than in the north, more in the east and less in the west, more in summer and autumn than in winter and spring, and the water resources in North China, Northwest and Northeast China, which account for more than 50% of the country's land area, only account for about 20% of the country's total. In recent years...

AI Technical Summary

Problems solved by technology

At present, the commonly used automatic irrigation realizes water and fertilizer irrigation, but it is powerless to spray pesticides, and cannot truly realize the modernization of agricultural management

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