Design And Implementation Of Precision Irrigation Automatic Control System For Sunken Garden

Precision irrigation in gardens is of great significance for plant growth and development,saving irrigation water and reducing the cost of garden maintenance.At this stage,the backward garden irrigation methods urgently need improvement.By introducing intelligent precision irrigation automatic control technology and using water-saving irrigation equipment,the irrigation efficiency of urban garden landscape can be improved,the analysis of water-saving irrigation technology can be strengthened,and the research and development and application of water-saving irrigation technology for garden landscape can be strengthened.Achieve water supply on demand,improve water use efficiency,alleviate urban water supply conflicts,and improve the growth environnent of garden plants.It is of great significance to develop a modem urban garden landscape irrigation automatic control system.In this paper,the research on garden precision irrigation engineering design is carried out,and a set of precise irrigation automatic control system has been developed.At present,the system has been put into use and stable operation in our school.The contents and main results of this study are as follows:1.Introduced the research background of this subject and the current development status of the urban and rural landscape precision irrigation field at home and abroad,clarified the research purpose of this subject,and designed the precise irrigation hardware equipment according to the actual needs of the sinking garden precise irrigation.The irrigation system drawing design of the sunken garden has realized the installation of irrigation pipe laying and water-saving equipment.2.Completed the design of PLC-based data acquisition system,and realized the collection of micro-environment data such as soil moisture,plant stem water content,air temperature and humidity and carbon dioxide content.Developed a precise irrigation human-computer interaction system based on King view to realize intelligent automatic irrigation control,remote manual irrigation control,irrigation status monitoring and irrigation related data query.3.Perform reliability testing on the system,including hardware testing and software testing.The test results show that the design and construction of the sunken garden fully meets the requirements of the precision irrigation project.The configuration of the human-machine interaction system runs stably without data transmission failure.The collected data provides a powerful way to explore the correlation between plant growth and water environment.Data support.At present,the preeise irrigation automatic control system of the sunken garden runs stably,and the environmental data is uploaded in real time without interruption.The system can adapt to various weather conditions.The system uses GPRS communication mode for data transmission,and the long-distance data transmission has good stability.Preliminary tests show that the system is irrigated by sprinkler irrigation,drip irrigation and root emitter.The time required for soil moisture to increase by 20%is 45-55 min,80-100 min and 35-45 min respectively.The accuracy and rapidity indicators can meet the garden.Landscape irrigation requirements,and the system has low cost and niaintainability,and has good prospects for popularization and application.