Intelligent Greenhouse Data Acquisition System Based On OpenHarmonyO

The greenhouse environmental monitoring system is an important part of modern agricultural production.In this information age,the greenhouse environmental monitoring system is not only an inevitable trend of modern agricultural development,but also an important means to promote agricultural modernization,improve agricultural production efficiency and ensure national food security.The monitoring system of greenhouse in foreign countries started very early compared with that in China.At present,the degree of automation is high,but the equipment system is huge,which is not suitable for the current development environment of greenhouse planting in China.In recent years,many solutions have been proposed in China,but problems such as low accuracy of environmental perception,insufficient communication distance,high power consumption,and lack of intelligent control restrict the popularity of greenhouse.In addition,in the field of operating systems,there has always been a phenomenon of being "stuck in the neck" in China,and OpenHarmonyOS(Open Source Hongmeng Operating System)is an emerging domestic operating system for the era of full scene,full connection,and full intelligence,which has attracted great attention due to its huge potential.Based on the development and background of the above Internet of Things technology,and aiming at various problems existing in the current agricultural greenhouse environmental monitoring system,this project has targeted optimization,designed and proposed a greenhouse data acquisition system based on OpenHarmonyOS,and abandoned the wired network connection in the traditional greenhouse environmental monitoring system and the design that requires manual deployment and debugging,This paper proposes an ad hoc wireless sensor network based on 2.4GHz,and also designs a local control center with OpenHarmonyOS and supporting cloud servers and clients.The main research content of this article is as follows:(1)Ad hoc wireless sensor network based on 2.4GHz.This paper proposes a set of intelligent ad hoc wireless sensor networks,which combines the wireless communication technology based on 2.4GHz communication frequency band with traditional wireless sensor networks.Compared with the traditional greenhouse environment monitoring system,the network has the characteristics of high stability,high autonomy,low power consumption and easy deployment.(2)A local control center with OpenHarmonyOS Lits OS-m kernel operating system is designed to control the wireless sensor network and interact with the cloud server.Compared to other real-time operating systems,this operating system has the characteristics of lightweight,efficiency,high security,easy development,and portability.(3)According to the requirements of this system,a set of cloud servers and clients are designed.Users can view the data collected by the greenhouse environment monitoring system in real time.The system intelligently adopts feedback control to adjust the environment of the greenhouse after monitoring the abnormal data.We also developed a mobile client based onHarmonyOS,which is easy to develop and deploys multiple terminals at once compared to traditional Android development.After the system design is completed,the test results of the prototype system prove the reliability of the intelligent greenhouse data acquisition system based on OpenHarmonyOS,which provides an application basis for the establishment of data acquisition and remote communication of agricultural big data.