The Key Technology Research Of The Plant Protection Robot Multifunctional Operation

Aim at the question existence in the process of spraying and multi-topping such as low working efficiency of manual work, low accuracy and stability of mechanical work, put forward the intelligent plant protection machine multi-function job control system design. The total system mainly include precision spraying control system and precise multi-topping control system, through the design of the system makes the spraying and multi-topping operation more precise and more stable, and can carry on the work under the bad environment, suitable for promotion.Firstly, this paper introduces the source of the topic, background and research significance, and expounds the main problems existing in the development process of spraying system and multi-topping system. On the basis of literature review, analyzes the research status of precision spraying control system and precise multi-topping control system at home and abroad. Focus on the present stage two key technical issues during development process, made the design scheme.Secondly, according to the farming requirements of the target crop, consider mechanical structure of the plant protection machine spraying arm and the multi-topping mechanical, after that analyzes the reason of the problem and solve it. For the spraying arm of hydraulic system and multi-topping device hydraulic system is analyzed and improved, which was done as the optimization design of mechanical and hydraulic system for control system.Thirdly, in view of shortcomings of the wheat field spraying, such as low accuracy, liquid waste, spraying uneven and land pollution, developed the control system of field of wheat plant protection precision spraying robot. The system according to the sensor detects the plant protection robot walking speed and liquid pressure, dynamic adjusting nozzle spray amount, in order to achieve accurate, efficient and intelligent spraying. And for cotton multi-topping manual operation efficiency is low, small mechanical operation precision is low, is developed the control system of the field of cotton plant protection robotic multi-topping control system. The system according to the sensor detects the plant protection robot walking speed and cotton top position, dynamic adjustment in multi-multi-topping blade height, in order to realize accurate, efficient and intelligent multi-topping.Finally, the designed control system has carried on the field experiment, the data acquisition and analysis result, and analyses the error sources, the design is verified by the precision and stability of the control system.