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发明公开
CN1798114A 一种CAN总线－以太网网桥 无效 - 撤回

一种CAN总线－以太网网桥
摘要：
本发明提供一种CAN总线－以太网网桥，其包含通过内部总线互连在一起的以太网通信单元、至少两个CAN总线通信单元、数据缓冲器和微控制器，所述以太网通信单元连接至以太网，所述CAN总线通信单元连接至同一设备层CAN总线，在所述微控制器的控制下，所述CAN总线通信单元和以太网通信单元负责数据在以太网和CAN总线上的转发，所述微控制器实时监测所述其中一个CAN总线通信单元的状态并在出现故障时采用另外一个CAN总线通信单元实现数据转发操作。在本发明中，通过在CAN总线侧采用主从式结构提供冗余功能，大大提高了系统的可靠性。
摘要（英）：

The invention consists of: multi Ethernet communication units connected together with the internal bus; at least two CAN bus communication units; a data buffer; and a micro controller. The Ethernet communication unit is connected to Ethernet. The CAN bus communication units are connected to the CAN bus in same device layer. Under the control of micro controller, the CAN bus communication units and the Ethernet communication units takes charge of data forwarding on Ethernet and CAN bus. The micro controller monitors in real time the state of one of the CAN bus communication units, and if there is failure, uses another CAN communication unit to make data forwarding.

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