Accurate drug delivery control method of plant protection machine through combination of pressure stable state and state feedback
A state feedback and control method technology, applied in computer control, program control, general control system, etc., can solve problems such as shortage, insufficient effective use of pesticides, and backward plant protection machinery capabilities
Active Publication Date: 2018-05-11
SHENYANG POLYTECHNIC UNIV
View PDF7 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Today, the annual output of pesticides in my country is nearly one million tons, but the effective use rate of pesticides is less than 40%. The reason is precisely because of the backwardness and insufficiency of plant protection machinery capabilities. The development and development of plant protection machinery suitable for modern agriculture has become the development of scientific agriculture today. top priority
So far, there is no control method that combines the complete plant protection machine application pressure system model with advanced intelligent control to make the plant protection machine spray pressure quickly and accurately overcome the disturbance of complex working conditions and track the expected pressure
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0074] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited by the embodiments.
[0075] A plant protection machine precision spraying control method combining pressure steady state and state feedback, characterized in that:
[0076] 1) Based on the pressure model between the liquid pump of the plant protection machine and the spraying pipeline, and the nonlinear factors of the spraying pressure system, the state equation of the pressure system between the liquid pump of the plant protection machine and the spraying pipeline is established;
[0077] 2) Design a spray pressure controller based on the combination of pressure steady state and state feedback control based on the pressure system state equation, so that the spray pressure can overcome the disturbance of complex working conditions and track the reference pressure;
[0078] 3) Based on the STM32 series micr...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
An accurate drug delivery control method of a plant protection machine through combination of a pressure stable state and state feedback comprises the steps of: taking the consideration of non-linearfactors of a drug delivery pressure system and a pressure model between a liquid medicine pump and a drug delivery pipeline of the plant protection machine to establish a state equation of a pressuresystem between the liquid medicine pump and the drug delivery pipeline of the plant protection machine; designing a drug delivery pressure controller controlled by combination of the pressure stable state and the state feedback to allow the drug delivery pressure to overcome complex condition disturbance to track a reference pressure based on the state equation of the pressure system. The state equation of the pressure system between the liquid medicine pump and the drug delivery pipeline of the plant protection machine is established, the accurate drug delivery control of the plant protectionmachine with combination of the pressure stable state and the state feedback is designed, and the method provided by the invention is easy to allow the drug delivery pressure of the plant protectionmachine to overcome complex condition disturbance to track an expected pressure, can accurately control the drug delivery pressure of the plant protection machine so as to improve the spray efficiencyof the plant protection machine and reduce the pesticide waste.
Description
Technical field: [0001] The invention relates to the field of agricultural intelligent machinery automation, in particular to an intelligent control method for operating state parameters of plant protection machines. Background technique: [0002] With the rapid development of scientific agriculture and the development needs of mechanical agriculture, planting agriculture has higher and higher requirements for plant protection machinery. Today, the annual output of pesticides in my country is nearly one million tons, but the effective use rate of pesticides is less than 40%. The reason is precisely because of the backwardness and insufficiency of plant protection machinery capabilities. The development and development of plant protection machinery suitable for modern agriculture has become the development of scientific agriculture today. urgent task. [0003] The spraying effect is an effective indicator to measure the quality of plant protection machinery. A good spraying e...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/24215
Inventor 李树江王琳王向东李雪
Owner SHENYANG POLYTECHNIC UNIV