| In order to meet the needs of the modern logistics industry,many universities and research institutions have set up logistics related majors to train logistics talents in the new situation,so the experimental teaching equipment is more and more concerned.In lots of logistics equipment,stacker has the characteristics of interdisciplinary learning because of its complex system and various functions.As the core handling equipment in automated warehouse,stacker learning is the most important part of logistics equipment learning and logistics process learning.However,the traditional teaching stacker is easy to be damaged and missing,and the students’ sense of substitution is not strong in the teaching process,even causes personal and equipment safety accidents due to improper operation of students.In view of the above problems,this thesis designed a stacker system for teaching conditions,aiming to provide a better education environment for college students and improve the level of theoretical teaching.The overall scheme is proposed,considering the functional requirements of the actual stacker and the design ideas and principles.The stacker designed highlights the teaching functions in the design,including the teaching command used by teachers and rendering the virtual reality and enhanced perception of the stacker operation process.The intelligent manufacturing digital design and simulation platform is used as the basis of online teaching,and offline teaching uses the ground physical control cabinet to operate,so as to help students achieve individual development.This thesis introduces the key problem of speed control in the theoretical study of stacker in detail,establishes the simulation model of speed control of stacker with Matlab / Simulink software,and obtains the optimization result of speed control of stacker system.From the perspective of education,this thesis analyzes the stacker system designed,builds an open experimental platform,and judges the impact of stacker system on students’ learning through small sample test.Siemens SIMATIC S7-1200 is used as the offline link of stacker operation control,and Mitsubishi FX1 N is used as the online link as the electrical controller.They use ethernet communication and serial communication correspondingly as the control modes to help students learn more about the connection mode of the commonly used programmable logic units.To judge the acceleration and deceleration operation mode according to the distance of target position,increasing the content of theoretical teaching to optimize the speed control of stacker is needed,which is based on the fuzzy PID control on concrete design.The results show that the fuzzy PID method has the characteristics of timely response and good robustness,can achieve the expected control performance better.In the analysis of education angle,seven aspects of evaluation feedback are set up.The results show that using thisexperimental teaching stacker system has significant effect on improving students’ learning motivation.The original intention of the stacker designed in this thesis is to promote the cultivation of innovative talents in Colleges and universities.It is hoped that by strengthening the function of teaching auxiliary equipment,prove the college students a people-oriented,individualized and competency-based development in the practical teaching in college.The designed stacker can meet the requirements of various performance indexes in the process of operation and conform to the availability of practical teaching application. |
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