| 基于CAN 网的模糊优先级配置策略 |
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| 引用本文： | 白 涛,吴智铭,杨根科.基于CAN 网的模糊优先级配置策略[J].控制与决策,2005,20(3):285-289. |
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| 作者姓名： | 白 涛 吴智铭 杨根科 |
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| 作者单位： | 1. 上海交通大学,自动化系,上海,200030;太原重型机械学院,自动化系,山西,太原,030024
2. 上海交通大学,自动化系,上海,200030 |
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| 基金项目： | 国家自然科学基金项目(60074011，60174009). |
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| 摘 要： | 利用CAN网的广播特性,提出一种新的闭环模糊优先级配置策略.各节点数据优先级的设定既与其QoS需求有关,又与其节点标识位及前一个传输数据的优先级有关.该策略尽管使用较少的优先级,但仍能保证实时数据较高的可调度性和非实时数据的服务公平性.较少的优先级只占用较少的bit位,这样不仅扩大了CAN网的服务能力,而且提高了CAN网的带宽利用率.
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| 关 键 词： | CAN网 模糊逻辑 可调度性 公平性 |
| 文章编号： | 1001-0920(2005)03-0285-05 |
CAN-based fuzzy priority allocation scheme |
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| BAI Tao,WU Zhi-ming,YANG Gen-ke.CAN-based fuzzy priority allocation scheme[J].Control and Decision,2005,20(3):285-289. |
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| Authors: | BAI Tao WU Zhi-ming YANG Gen-ke |
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| Abstract: | Using the broadcast nature of CAN, a scheme of closed-loop fuzzy priority scheduling is proposed. Besides the QoS requirement of a message, the message identifier and the broadcast information on the priority of last transmitted message of some other node are used to update its priority. Although fewer priority levels are used, the proposed scheme can not only gain the higher network schedulability for real-time messages, but also ensure the fairness among non-real-time messages. Moreover, it makes the service range wide and improves the bandwidth utility of CAN bus. |
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| Keywords: | CAN bus fuzzy logic control schedulability fairness |
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