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Schedule-based service choreographies for real-time control loops

机译:基于时间表的服务编排,用于实时控制循环

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Today's manufacturing industries are undertaking efforts to further increase the flexibility of their facilities. One way to achieve this goal is the development of distributed, service-oriented architectures (SOA). A challenge for SOAs is the continued support of the real-time requirements imposed by industrial control tasks. This paper presents an approach for executing service choreographies with strong real-time guarantees without a central point of control. Engineers can design the automation workflow as a graph of communicating tasks which are then assigned to devices in the network. Our method generates a cyclic, non-preemptive schedule for each device to achieve global cooperation between them. Using an approach that combines several heuristics, a valid solution for over 99% of the 1.2 million test cases was found. On average, this method was over two orders of magnitude faster than an approach based on MIP-solvers.
机译:今天的制造业正在努力进一步提高其设施的灵活性。实现这一目标的一种方法是开发分布式服务导向的架构(SOA)。 SOA的挑战是继续支持工业控制任务所施加的实时要求。本文提出了一种在没有中央控制点的实时担保的情况下执行服务编舞的方法。工程师可以将自动化工作流设计为通信任务的图表,然后将其分配给网络中的设备。我们的方法为每个设备生成循环,非抢占时间表,以实现它们之间的全球合作。使用结合多种启发式的方法,发现了有效的99%以上的120万个测试用例的解决方案。平均而言,该方法比基于MIP溶剂的方法更快地超过两个数量级。

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