Abstract: Wearable computing is introduced into the equipment maintenance task of manufacturing，design the wearable task assistant application system.Firstly，combine the wireless sensor network and wearable sensors to simulate the workshop experiment environment，build wearable computer system prototype.Secondly，the context characters of environment information entity are addressed，and then combine the technologies about domain ontology and fuzzy decision tree，present a new application build pattern of wearable task assistant application.Lastly，the application example with analysis is presented.

Key words: wearable computing, context aware, fuzzy decision tree, domain knowledge ontology

摘要： 将可穿戴计算技术引入制造业设备维护应用领域，设计可穿戴作业辅助应用系统。首先结合无线传感、穿戴传感等构建车间模拟实验环境，设计可穿戴计算机系统原型；进而针对环境信息实体的上下文特征，结合领域知识本体、模糊决策树等方法，建立了一种新的上下文驱动的可穿戴作业辅助应用构建模式；最后给出了应用实例及分析。

关键词: 可穿戴计算, 上下文感知, 模糊决策树, 领域知识本体