| Parking has become a common problem in modern China,the establishment of mechanical three-dimensional garage is an effective way to solve this problem.Mechanical three-dimensional garage from the intelligent point of view can be divided into semi-automatic and fully automated two categories.As China’s mechanical three-dimensional garage industry is in its infancy and the technology is relatively backward,the automatic stereo garage’s control system using foreign imports in general.Therefore,the study of automatic three-dimensional garage system has the significance and value to promote the development of the industry.The stereo garage experiment platform system is based on the roadway stacking three-dimensional garage researching and designing,the purpose is to improve the stability of the experimental platform system and optimize the control accuracy.The main contents include:1.The construction of the experimental platform.Firstly,analyzing the working principle of roadway stacking three-dimensional garage system,designing the experimental platform’s parking/pick-up process,and selecting the important components of the experimental platform’s transmission system,complete the mechanical structure of the experimental platform establishing.Secondly,the overall structure of the experimental platform is designed,and the overall planning of the experimental platform is put forward,to complete the experiment platform control system establishing.To provide experimental environment for follow-up study.2.This paper analyzes the Stability of Mechanical Transmission System.Firstly,the system is simplified according to the composition characteristics of the system,with the mathematical model of the motor drive subsystem and the mathematical model of the power transmission subsystem are established according to the simplified model.Then,the simulation model of the traditional exponential acceleration method and the improved exponential acceleration method is established and the corresponding curve of the corresponding speed is output in the SIMULINK environment.According to the simulation results,it is found that the improved velocity of the system is small and has a great stability,which provides a theoretical basis for the subsequent control system research.3.Designing Control System of Lower Computer.Firstly,the control signal is analyzed and the PLC storage address of the acquisition and transmission is allocated reasonably.Then the hardware connection and the external power supply circuit of the control system are designed.And then achieve the various preset functions through the PLC.Finally,through the calculation of the control parameters and the optimization of the control method,the PWM and PTO control are combined to realize the control of the stepper motor.4.The design of PC monitoring system.Firstly,the functional requirements of the upper computer monitoring system are analyzed,and the communication scheme of WINCC and PLC is designed.Then,the configuration and design of the interface is realized by WINCC software,which can realize the data acquisition and running state monitoring of the experimental platform. |
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