Movable Monitoring System For Greenhouse Environment Based On Intertnet Of Things Architecture

Agricultural informatization,as a major strategy for the development of modern agriculture in China,has been highly valued and vigorously promoted by the government in recent years.Greenhouse crops and the environment monitoring is an important component of modern greenhouse system,especially for large-scale greenhouses,where various crops grow in different regions.The current Io T greenhouse environmental monitoring system requires a large number of equipments and sensors,wasting a lot of manpower and resources.In addition,application problems exist,such as inflexible data collection methods,inconvenient maintenance and management,and insecure information transmission,etc.This study aims to solve these problems byutilizing Raspberry Pi and Arduino to design a movable greenhouse environmental monitoring system based on the Internet of Things architecture.This system integrates the perception,transmission,and application layers of the Internet of Things and puts them all on the movable system to achieve automatic acquisition of greenhouse environment information.The strategy to replace multiple sensing nodes with movable system reduces the number of equipment,facilitates management and maintenance,enables accurate monitoring of environmental information and provides more reliable data support for precision planting in greenhous.Using the Raspberry Pi as a data server,and the Arduino as the main control chip of the system decreases the physical distance between the server and the information collection terminal to change the transmission mode.Serial communication is selected for data transmission to improve the reliability of information transmission.Through the deve lopment of dedicated communication protocols,the system optimizes the control of motion and data transfer logic.Furthermore a web management system is developed to facilitate the user to manage greenhouse environment and the whole system.Finally,the data collected by the movable system are analyzed,and the usability and accuracy of the system are statistically evaluated.Through this design,the accuracy of data collection and the reliability of the system are improved,and the environmental monitoring of different crops in different ar eas of a large greenhouse can be successfully achieved.