Design Of Intelligent Garden Sprinkler Irrigation System Based On LoRa AD Hoc Network

Urban landscaping,as an objective carrier of ecological regulation and visual aesthetics,occupies a very important position in urban development and planning.With the rapid development of urban greening construction,China’s urban landscaping industry has continuously increased in scale.How to ensure efficient and energy-saving garden irrigation operations has become an important issue in municipal landscaping construction.Traditional garden irrigation methods have disadvantages such as low water resource utilization rate,poor real-time performance,and difficult automation control,which cannot meet the needs of modern garden construction for large-scale garden irrigation.The emergence of Low Power Wide Area Network(LPWAN)technology solves the problem that has been plaguing wireless communication distance and power consumption of Internet of Things wireless technology.Its characteristics of long communication distance,low device power consumption,and large network capacity are very suitable for outdoor large node capacity and battery-powered Internet of Things terminal devices.Based on this,this paper designs a smart garden irrigation system based on LoRa mesh network.The system focuses on the research of LoRa and precision irrigation technologies,and the main work contents are as follows:Firstly,analyze the current domestic and international research and development status,and combine with the actual requirements of garden irrigation work to construct the overall system design architecture,and conduct in-depth research on the technologies and methods used in the system,including LoRa,fog computing,irrigation decision model establishment,etc.For the characteristics of large node capacity in garden environment,an adaptive rate network optimization algorithm is proposed.The algorithm achieves the effect of improving network capacity and reducing packet loss rate by weakening the collision effect of the MAC layer in the self-organizing network.Secondly,based on theoretical research,the hardware and software design of the system is carried out.The modular design method is used for both hardware and software design,mainly including terminal equipment and gateway concentrator.In addition,a background management platform is designed to manage the system.Finally,the system functions and communication performance are tested and simulated.The experimental results show that the smart garden irrigation system can operate stably,and its communication distance and power consumption meet the needs of garden irrigation scenes.Compared with traditional irrigation methods,the irrigation water volume is reduced by 28%,while reducing the waste of electricity and human resources.