摘要
分析了双绞线CAN(Wire-CAN)总线网络的传送数据的工作波形,对光纤环网数据传送的阻塞问题进行了研究,基于CAN控制器SJA1000提出了星型光纤CAN(Fiber-CAN)总线网络设计方案。基于有源星型耦合器设计的星型光纤CAN总线网络无阻塞,并能实现CAN多主竞争。通过4个节点的组网实验,验证了星型CAN网及有源星型耦合器设计的正确性。
The waveform of Wire-CAN bus is analyzed in detail. In the Fiber-CAN with loop topological construction, the trouble of block is investigated. Based on SJA1000 Stand-alone CAN controller, a fiber-CAN network with star topological construction is put forward. Applying active star coupler, the trouble of block is eliminated. And the competition mechanism is implemented by CAN bus with star structure. After building the fiber-CAN network with four nodes, it is showed that the star CAN bus network and active star coupler are satisfactory.
出处
《计算机测量与控制》
CSCD
2004年第5期498-500,共3页
Computer Measurement &Control
基金
国家863计划资助项目(2001AA501213)
