[1]王宣明,田泽,魏美荣,等. 一种有效监控及过滤1394总线消息的设计实现[J].计算机技术与发展,2015,25(07):155-157.
　WANG Xuan-ming,TIAN Ze,WEI Mei-rong,et al. Design and Implementation of an Effective Monitor and Filter 1394 Bus Message[J].,2015,25(07):155-157.
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 一种有效监控及过滤1394总线消息的设计实现()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年07期
页码:
155-157
栏目:
应用开发研究
出版日期:
2015-07-10

文章信息/Info

Title:
 Design and Implementation of an Effective Monitor and Filter 1394 Bus Message
文章编号:
1673-629X（2015)07-0155-03
作者:
 王宣明; 田泽; 魏美荣; 牛少平; 徐文进
 中国航空计算技术研究所
Author(s):
 WANG Xuan-ming; TIAN Ze; WEI Mei-rong; NIU Shao-ping; XU Wen-jin
关键词:
 ; 总线监控; 过滤监控; CAM; 分组轮询
Keywords:
 ; bus monitor; filtering and monitoring; CAM; multi-team search
分类号:
TP39
文献标志码:
A
摘要:
 IEEE 1394总线已成功应用于航空领域，机载1394总线监控( BM)节点需从监控到的所有总线消息中提取关系到飞行安全的关键数据，提交给上层应用软件进行实时处理。实现该需求的核心是从监控到的消息中提取标识其类型的ID信息，并检查与期望值是否匹配。但期望监控的消息种类多达数千种，如采用传统方法使用CAM表的方法来检查匹配，需耗费极大的硬件资源。文中提出一种分组轮询的方法，可用更少的硬件开销来获取匹配结果。实验结果表明，该方法可有效降低硬件资源开销，实现监控过滤1394总线消息。
Abstract:
 With the IEEE-1394b successfully applied in aviation field,bus monitor node need to extract the key data related to flight safe-ty from all the bus information,and then submit to the upper layer software for real-time processing. To meet the requirements,the key point is to check if the message ID which is extracted from monitor message matches the expected value. But expected monitoring infor-mation is thousands of varieties,for example,the traditional method checks the matching using CAM table,which takes a great deal of hardware resources. In this paper,put forward a method of multi-team search for specific messages. Experimental results show that the method can filter and monitor specific 1394 message in the cost of less hardware resources.

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更新日期/Last Update: 2015-09-07