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1. 发明专利

JP2007158990A Lan repeater and lan relay system 有权
标题翻译： LAN重拨和LAN继电器系统
公开(公告)号：JP2007158990A
公开(公告)日：2007-06-21
申请号：JP2005354433
申请日：2005-12-08
申请人： Central Japan Railway Co , Kyosan Electric Mfg Co Ltd , Nippon Signal Co Ltd:The , 日本信号株式会社 , 東海旅客鉄道株式会社 , 株式会社京三製作所
发明人： ICHIKAWA NAOYUKI , YOSHIDA SHUJI , HATANO HIDENORI , SETO MICHIO , MIZUNO KEISUKE , ARA NOBUYUKI , KATANO ISAMU
IPC分类号： H04L12/46
摘要： PROBLEM TO BE SOLVED: To provide a LAN repeater capable of avoiding operational abnormality caused by version mismatching between data loaded to equipment on one LAN side and the data loaded to equipment on the other LAN side.
SOLUTION: A first reception means 11 of a LAN repeater 10 receives version information of data loaded to equipment from the equipment on the side of a trunk LAN 20 and a second reception means 13 receives version information of data from equipment on the side of a base LAN 30. A control means 15 compares the received version information to each other and controls the continuation and stop of relay processing in accordance with a result of the comparison. For example, if the version information agrees completely, the data are relayed; and when there is mismatching, relay processing is stopped. Alternatively, if high-order digits are agree, regardless of whether low-order digits of the version information agree, the data are relayed; and if high-order digits do not agree, relay processing is stopped.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够避免由加载到一个LAN侧的设备的数据与加载到另一个LAN侧的设备的数据之间的版本不匹配引起的操作异常的LAN中继器。解决方案：LAN中继器10的第一接收装置11从中继LAN 20侧的设备接收加载到设备的数据的版本信息，第二接收装置13从侧面的设备接收数据的版本信息控制装置15将接收到的版本信息彼此进行比较，并根据比较结果控制中继处理的继续和停止。例如，如果版本信息完全一致，则中继数据; 当不匹配时，中继处理停止。或者，如果高位数字一致，则无论版本信息的低位数字是否一致，数据被中继; 如果高位数字不一致，则中继处理停止。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2005020645A Fault detection device and method for network 审中-公开
标题翻译：故障检测装置和网络方法
公开(公告)号：JP2005020645A
公开(公告)日：2005-01-20
申请号：JP2003186046
申请日：2003-06-30
申请人： Kyosan Electric Mfg Co Ltd , 株式会社京三製作所
发明人： MIZUNO KEISUKE , MURAKAMI YOICHI , SETO MICHIO , NISHIDA SHIGENOBU
IPC分类号： H04L12/42
摘要： PROBLEM TO BE SOLVED: To surely specify the node wherein an abnormality occurs, when it occurs in a reproduction and relay function of any one of a plurality of nodes connected to a network.
SOLUTION: All frame data 10 which are transmitted from a boundary node 4a, and reproduced and repeated by nodes 4b-4n, are captured by an abnormality detection node 11 connected to the most downstream side of a transmission direction, at a position adjacent to the boundary node 4a. An abnormality detecting device 12 applies an examination code inspection to all the data which are captured by the abnormality detection node 11 and when it is detected that abnormal data are caused in the frame data 10, abnormality information is transmitted to data monitors 14a, 14b. When the abnormality information is received, the data monitors 14a, 14b reproduce and store all the data in the frame data 10 under transmission. A decision processing apparatus 15 reads stored two sets of data, applies examination code inspection thereto, decides whether or not abnormal data are caused, and specifies the region wherein the abnormal data are caused.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：当确定指定发生异常的节点时，当发生在连接到网络的多个节点中的任一个的再现和中继功能中时。解决方案：从边界节点4a发送并由节点4b-4n再现和重复的所有帧数据10被连接到传输方向最下游侧的异常检测节点11捕获邻近边界节点4a。异常检测装置12对由异常检测节点11捕获的所有数据进行检查代码检查，当在帧数据10中检测到异常数据时，异常信息被发送到数据监视器14a，14b。当接收到异常信息时，数据监视器14a，14b在发送时再现并存储帧数据10中的所有数据。判定处理装置15读取存储的两组数据，对其进行检查代码检查，判定是否引起异常数据，并指定引起异常数据的区域。版权所有（C）2005，JPO＆NCIPI

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