摘要
目的:研制一种智能型冷冻干燥机控制系统,实现中型冻干机完成全自动冷冻干燥进程的全部功能需求。方法:以内嵌μC/OS-Ⅱ实时操作系统的EPCM-2940嵌入式主板为核心进行应用程序开发,人机界面采用触模屏。按照应答的实时性需求,设置了7项任务的不同优先级别,保证了系统实时、精确的运行。结果:该控制系统在功能指标上较好地实现了冷冻干燥机的全部控制需求,并在操作的实时性、任务的扩展性、系统的可靠性以及远程监控等方面满足了对冷冻干燥过程进行高端控制的需要。结论:该控制系统经实际应用测试,完全满足冷冻干燥过程的控制需求,已应用于中型冻干机产品。
Objective To develop a smart embedded control system so as to satisfy the requirements of automatic process controlling of freeze drying in medium-sized freeze dryer.Methods The embedded main-board EPCM-2940 preloaded with real-time operating system uc/os-Ⅱwas used as the core of the control system for the development,and touch screen was applied in the human-machine interface.According to the real-time demands,the different priority levels of the 7 tasks were set,which ensured the real-time and precise system operation.Results The control system achieved preferably all the control demand of the functional indicators,and also met the high-end control need of the freeze-drying process from realtime operation,mission expansion,system reliability and remote monitoring.Conclusion By practical testing,the control system fully meet the control requirements of the freeze-drying process,and has been applied to medium-sized freeze dryer product.
出处
《医疗卫生装备》
CAS
2012年第4期41-42,共2页
Chinese Medical Equipment Journal
