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首页> 外文会议>IEEE International Conference on Mechatronics and Automation; 20060625-28; Luouang(CN) >A Scheduling Method Based on Deadline for CAN-based Networked Control Systems
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A Scheduling Method Based on Deadline for CAN-based Networked Control Systems

机译：基于CAN的网络控制系统的基于期限的调度方法

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摘要

In order to satisfy timeliness of messages and improve system's flexibility in networked control systems (NCS) based on controller area network (CAN), a distributed dynamic message scheduling method based on deadline of message (DM) was proposed. In this method, provided that a message is successfully transmitted, transmission requirement of the next message immediately occurs in the same node. If only a node obtains a chance of sending message, the message can be success-sfully transmitted to the destination. Identifier of message is dynamically changed in this method, the change does rely on elapsed time (since the preceding message can be transmitted) and the DM. The longer the elapsed time is or the shorter DM is, the higher priority level of message is. When the DM satisfies a certain condition, the method can guarantee that all messages are transmitted within given DM and fairly allocate network bandwidth to message streams. Nodes using this scheduling method also have high flexibility. A necessary condition of full schedule-ability of messages is obtained and the condition is proved, some examples verify its correctness.
机译：为了满足消息的及时性，提高基于控制器局域网（CAN）的网络控制系统（NCS）中系统的灵活性，提出了一种基于消息截止时间（DM）的分布式动态消息调度方法。在这种方法中，只要成功发送了一条消息，下一条消息的发送要求立即在同一节点中发生。如果只有一个节点有机会发送消息，则可以成功地将消息发送到目标。通过这种方法可以动态更改消息的标识符，该更改确实取决于经过的时间（因为可以传输前面的消息）和DM。经过的时间越长或DM越短，则消息的优先级越高。当DM满足特定条件时，该方法可以保证所有消息在给定的DM内传输，并且公平地将网络带宽分配给消息流。使用这种调度方法的节点也具有很高的灵活性。获得了消息具有完全可调度性的必要条件，并证明了该条件，并通过一些实例验证了其正确性。

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