Application of Control System Based on S7-300 in the Producting of Pu'er Tea

摘要

Aim to the workshop temperature and humidity fluctuation is bigger influence the stability of the pu-erh tea ripe tea fermentation quality and the production efficiency of the enterprise. Control system is developed based on S7-300, it can automatically adjust the workshop environment temperature and humidity. According to the conditions for pu 'er ripe tea production, the S7-300 PLC control system overall scheme is put forward. The system is divided into data acquisition and workshop control two parts. Data acquisition part can automatically collect workshop environment temperature and humidity, tea reactor temperature; Control part can automatically adjust according to the need of production workshop temperature and humidity and ventilation oxygen. The small artificial fermentation environment is created and it can improve the uniform of the pu-erh tea ripe tea fermentation efficiency, shorten the fermentation period. Finally by analyzing the collected data, the results of the analysis verify the control system is feasible. This study provides the technical support for the late pu'er ripe tea production quality control and automation.