Offline part provides friendly and simple operation interface , and various fuzzy parameter fields , variable subsets , fuzzy reduction and reverse fuzzy method can be selected easily . look - up table is stored as data module . on - line part is a function block used conveniently 离线部分用户界面友好，操作简单，可以方便地选择各模糊变量论域范围、变量子集类型、模糊推理和去模糊化的方法；用于查询的控制表以plc数据模块的形式存放；在线部分本身是一个调用方便的功能块。
If either of strength and stress is stochastic variable and another is fuzzy variable , the . fuzzy variable can be transformed to section number on the assumption that the probability of fuzzy variable taking some points in that section is proportional to its value of membership function respectively , then the probability of structural fuzzy event is transformed to general probability with stochastic strength and stress variables and can be solved by general probability theory 当强度和应力之一为随机变量，另一个为模糊变量时，提出将模糊变量通过模糊集合截集转换为区间数，并假定模糊变量在此区间取值的可能性与相应的隶属函数值成正比。采用上述处理后，结构模糊事件的概率即转化为相应的普通事件概率，可按应力和强度为随机变量，用常规可靠性理论进行求解。
According to the characterestic of resistance furnace temperature control , temperature rising one - way control , large time delay and time - variation of parameter , using method of fuzzy compositional rule of inference establish fuzzy model and design fuzzy cntroler . in order to increase control system precision , it gives a fuzzy variable k , and sets parameter self - adjusting fuzzy control system . this system can on line self - adjusting controller parameters according to the error and variations of the error . it makes the system steady precision improved 根据电阻炉温控制的特点，即只有升温单向控制、滞后较大且具有参数时变性，利用模糊推理合成法建立模糊模型并进行模糊控制器设计，为提高模糊控制的精度，引入模糊变量k ，构成参数自调整模糊控制系统.该系统可根据误差和误差变化在线自动调整控制器参数，使系统的稳态精度得到改善
