中文摘要：

为实现茶叶加工机械智能化控制,在分析茶叶加工工艺的基础上,提出基于模糊控制的茶叶杀青机控制方案。通过检测杀青滚筒内的鲜叶投叶量和鲜叶等级,应用模糊控制规则决策,实时调整杀青时间和杀青温度的设定值,并在杀青温度中嵌入模糊PID控制,实现杀青温度的精确控制。利用NI USB-6215数据采集卡、西门子PLC等构建数据采集与控制硬件系统,并用LabVIEW虚拟仪器测试双模糊控制系统的输出效果。试验分析了该控制系统输出量对茶叶杀青效果的影响,试验结果表明：该控制系统输出的茶叶加工工艺参数杀青效果理想,杀青温度偏差低于1℃,杀青时间偏差小于5 s。该控制策略减少了制茶过程中人为因素的干扰,提高了茶叶加工机械的智能化水平。

英文摘要：

On the basis of analysis on processing technology of tea,the fuzzy algorithm was applied to realize the intelligent control of traditional tea cylinder water-removing machine. By detecting the weight and grade of fresh tea leaves in the tea cylinder water-removing machine,the fuzzy control rule of decision-making was used to adjust time and temperature of tea water-removing real-timely; at the same time,fuzzy proportion-integration-differentiation（ PID） controller was used to adjust temperature of tea water-removing to realize the accurate control. Data acquisition and double fuzzy control system hardware were made up with NI USB-6215 data acquisition card and Siemens programmable logic controller（ PLC）,etc. In addition,output effect of double fuzzy control system model was tested by laboratory virtual instrument engineering workbench（ Lab VIEW）. Finally,the possibility of the double fuzzy control system was proved by the substantial evidence and the result of tea water-removing was tested.Experiment result show that this control system output parameters are ideal for the water-removing of tea,the temperature departure of water-removing is less than 1℃ and the time deviation of water-removing of tea is less than 5 s. This control system can reduce the human factors in the process of tea-making.What＇s more,it will improve the intelligent level of the machine for tea-making.