Research On Key Technologies Of Automated Production System For Hydroponic Leaf Vegetables

At present,China’s protected vegetable has made great achievements in biotechnology,breeding,high-yield cultivation and so on,and the high-efficiency and energy-saving cultivation technology of greenhouse vegetables has made China’s greenhouse energy-saving technology leap to the leading position in the world,but its supporting automation technology is still in a blank state in China’s leaf vegetable planting industry.In order to make up for this gap,the automatic production system of hydroponic leafy vegetables is studied in this paper.The main research contents are as follows:Firstly,the original production situation is introduced,and the functional requirements of the automatic production system for hydroponic leafy vegetables are analyzed and refined.According to the technological requirements,the technological route of the system is designed,the production line is divided according to the types of materials in the system,the overall layout scheme of the system is planned,and the main devices in the production line are designed.The process priority relationship of the production system is designed according to the efficiency requirements.Production rhythm.Secondly,we design the seedling transplanting robot,which is the core component of the automatic production system of hydroponics leafy vegetable,complete the design of the transmission scheme and the setting of the preliminary parameters of the robot,the calculation and selection of the important parts such as motor and reducer,and calculate the workspace of the robot;complete the functional analysis of the end effector and carry out the matching end execution according to the functional analysis.Design of the device.Thirdly,aiming at the problem of collision between two robots caused by overlapping workspace in seedling transplanting station,the collision avoidance motion of the two robots is studied.The C-space method is used to complete the path planning of the two robots without collision and the simulation experiment is carried out to obtain the desired simulation results.Finally,based on the design of the above production system,the control part of the system is designed.For the seedling transplanting robot,based on the technology of driving and control integration,the hardware selection and electrical wiring design are completed;for the pusher device,the hardware selection,communication mode setting and human-machine interface design are completed;for the production system,according to the operation tasks of each station device in the system,the workflow of the system is planned,and the electrical system design and PLC programming are completed with the help of PLC hardware.