Design of a PLC based automatic control system for disinfection and sterilization of nursing ventilators
With the development of medical and health care,disinfection and sterilization based on nursing ventilator has attrac-ted attention.However,the application crowd of this equipment is too large,and the method of manpower control is obviously back-ward.In order to solve this problem,this research adds an amplification device to the programmable controller and integrates the pro-portional integral differential automatic control algorithm with it.In order to reduce the probability of impurity peak generation,the bi-nary tree rule is added to the programmable controller.At the same time,the limit gradient lifting process is introduced in the propor-tional integral differential to enhance the robustness of disinfection and sterilization information.Finally,the hybrid system is tested on Nurven data set and compared with other three systems,such as artificial fish school.In the same environment,the final bacterial concentrations of the four systems were 0.2,0.8,1.0 and 1.5*103/ml,respectively.According to different environments,50 ex-periments have been carried out,and the experimental results of hybrid system are better than those of generalized predictive control system.The experimental results show that the hybrid system proposed in this study has the best disinfection and sterilization effect on nursing ventilators,and is suitable for maintaining the hygiene of medical equipment.
programmable controllernursing ventilatordisinfection and sterilizationPID automatic controlincreasing equip-mentbifurcation tree rulelimit gradient lifting process
万方数据
维普
