基于无线传感器/执行器网络的产品驱动的混流生产线自治控制

项目名称： 基于无线传感器/执行器网络的产品驱动的混流生产线自治控制

项目编号： No.50805058

项目类型： 青年科学基金项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 石柯

作者单位： 华中科技大学

项目金额： 20万元

中文摘要： 多品种混流生产使制造系统的复杂性和动态性大大增加，需要其控制系统的任务调度层和设备控制层都具有足够的柔性、自适应性和健壮性，适应变化和扰动频繁的生产环境。本项目针对上述需求，构造了面向混流生产线自治控制的无线传感器/执行器网络平台，赋予混流生产线中产品、设备及各种资源信息收集、处理、通信、决策和执行能力。基于该平台，产品节点不仅能够通过无线通信获取局部制造环境信息，还能够根据这些信息做出决策，确定后续的加工过程和路径，实现基于信息素的自治任务分配与调度；然后基于复杂事件处理技术与设备节点、资源节点进行协同，实现对应的控制逻辑，完成生产准备，进行加工。生产线的整个加工过程由多个产品驱动的局部自治控制过程构成的，具有自组织和容扰能力，能够充分发挥混流生产的优势和效率。

中文关键词： 混流生产；自治控制；无线传感器/执行器网络；基于信息素的调度；复杂事件处理

英文摘要： With the prevalence of wide-variety/mixed-production, manufacturing system becomes more and more complex and dynamic, which demands the corresponding control system should be flexible, adaptive and robust enough in both task scheduling level and device control level to adapt to outside environment changes and inside disturbances. To achieve this, a product-driven autonomous control approach based on wireless sensor/actuator network is proposed. By integrating with tiny sensor/actutor nodes, the physical items (e.g. parts, machines) in the mixed proction line is transferred to the smart items that possess the capacities of sensing, computing, communicating and making decisions. The part integrated with tiny snesor node not only can collect the information of local manufacturing environment through sensing and wireless communicating but also can make decisions based on those infromations. By utilizing pheromone-based method, the part can decide its producing process and select the according route itself. This eliminates the necessities of centralized plan and schedule and implements the autonomy in task scheduling level. In devcie control level, based on complex event processing, the nodes integrated into the parts cooperates with the nodes integrated with the machines and other resources to accomplish the assigned task. The whole producing process is devided into many local autonomous producing process driven by parts, which make the system disturbance-tolerant and self-organized. The cost of mixed production can be minimized and the benefit of mixed production can be maximized.

英文关键词： Mixed production; Autonoumous Control; Wireless Sensor/Actuator Network; Pheromone-based Scheduling; Complex Event Processing