The Design And Test Of The Integrated System For Water And Fertilizer Based On Zigbee Technology

This project is taken from the Fujian Natural Science Foundation Project number of KJd16075A,the research of the integrated control system for water and fertilizer based on the IOT.The integrated control system of water and fertilizer is the newly technology in agriculture field,which change the model of traditional agricultural production in the 21st century.However,there are great differences between the north and south of China,so the standard intelligent agricultural facilities can not be popularized.The automatic production methods of precision agriculture are not easy to work in the southern hills.The efficiency of water and fertilizer in current agriculture remains to be improved.At the present stage,sustainable development of agricultural must combine agricultural automatic technology,electronic information technology,sensor network technology and other relevant.In this project,the wireless sensor network of Zigbee is used to transmit the information of the growth environments.The parameters include:light intensity,air temperature,air humidity,carbon dioxide concentration,realizing the timing and quantitative control of irrigation.The software of OpenCV is used to evaluate the growth status of crops,match the nitrogen-deficient fertilizer level of plants,and adjust the concentration of fertilizer in time.The remote control interface is developed to realize remote control.This paper concludes that the control factors of temperature（7）_1x（8）,humidity（7）x ₂（8）and light intensity（7）₃x（8）have a significant influence on the length of irrigation.The influence degrees of factors isx₂（29）x₃（29）x₁.The integrated system of water and fertilizer has higher precision of compounding solution,the maximum error of the pH is 0.1,the maximum error of the EC is 12PPM,minimum is 5PPM,maximum variance is 140.Zigbee network has the good functions of self-networking,self-healing and self-healing.The results show that the tomato plants grows differently under different nitrogen levels,and the low concentration of nitrogen would cause the plant to grew slowly.Using the integrated control system of water and fertilizer to control the fertilizer concentration reasonably can promote the growth of plants.