Tea green-removing machine and fuzzy control method thereof

A technology of fuzzy control and fuzzy controller, applied in the direction of tea processing before extraction, can solve the problems of insufficient combustion of gas, potential safety hazards, affecting the quality of tea leaves, etc., to improve efficiency and quality of tea leaves, fast response time, and safety. Low risk effect

Active Publication Date: 2011-03-30
CENT SOUTH UNIV
View PDF1 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the operation is improper, it is easy to produce scorched leaves, which seriously affects the quality of tea.
In addition, the combustion system of the existing de-greening mach

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tea green-removing machine and fuzzy control method thereof
  • Tea green-removing machine and fuzzy control method thereof
  • Tea green-removing machine and fuzzy control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A complete set of infrared automatic tea greening machine control system includes man-machine interface, non-contact temperature sensor, fuzzy controller, solenoid valve, metal infrared burner, alarm device, frequency converter, motor, electric push rod 9, greening machine Bracket 10 and greening machine drum 11. Among them, the non-contact temperature sensor, fuzzy controller, solenoid valve and metal infrared burner form the heating system of the greening machine. The non-contact temperature sensor adopts Omron ES1 series, its measurement accuracy is 0.5°C, and the response speed is 0.4 seconds, which can feedback the real-time temperature value better; the fuzzy controller adopts Siemens S7-200 series, and the chip is CPU226 PLC for automatic control ;The solenoid valve adopts a flow-adjustable solenoid valve, and its structure is as follows: 1. Valve body; 2. Electromagnetic coil set outside the valve body; 3. Permanent magnet steel in the valve body cavity; 4. Smal...

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

No PUM Login to view more

Abstract

The invention discloses a tea green-removing machine and a fuzzy control method thereof. The method comprises the following steps of: heating a barrel of the tea green-removing machine by using a combustor, wherein T is a given temperature value, a feedback value Tt is the current temperature value of the outer wall of the barrel of the tea green-removing machine, and temperature difference E is equal to Tt-T, and a temperature difference change rate EC is equal to Tt-Tt-1, the first input quantity of a fuzzy controller is Ke*E, and the second input quantity of the fuzzy controller is KC*EC; the output quantity of the fuzzy controller is U, and the input control quantity of the tea green-removing machine is KU*U, and the Ke, KC and KU represent a temperature difference ratio factor, a temperature difference change ratio factor and a control quantity ratio factor respectively; and the input control quantity KU*U is a voltage signal of an electromagnetic valve, namely the voltage signalloaded in an electromagnetic coil in the electromagnetic valve which is used for controlling the flow of the combustible gas in the combustor. The tea green-removing machine and the fuzzy control method thereof have the advantages that: the implementation is easy; the automation degree is high; and the tea green-removing effect is good.

Description

technical field [0001] The invention belongs to the field of automatic control, and relates to a tea degreening machine and a fuzzy control method thereof, which are used for degreening fresh leaves in the primary green tea production stage. Background technique [0002] The greening machine is a machine used to complete the finishing work in the primary processing of tea. Fixing is to take high temperature measures to emit water in the leaves, inactivate the activity of enzymes, prevent enzymatic reactions, and cause certain chemical changes in the contents of fresh leaves, thereby forming the quality characteristics of green tea. Therefore, if the pot temperature is too low and the leaf temperature rises for too long during the greening process, the tea polyphenols will undergo an enzymatic reaction, resulting in "red stalks and red leaves". On the contrary, if the temperature is too high and the chlorophyll is destroyed more, it will cause the leaves to turn yellow, and ...

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
no application Login to view more
IPC IPC(8): A23F3/06
Inventor 汤哲林启军张立
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap