论文部分内容阅读
在基于 L ONWORKS网络的现场总线中 ,Neuron芯片是节点的核心 ,但是其处理能力不足以胜任复杂的计算任务 .为增强节点的计算能力 ,提出并实现了一种非对称多处理器 (AMP)结构的控制节点设计方案 ,多个处理器之间采用共享总线相连 ,Neuron芯片为主处理器 ,3个从处理器并行完成信号的高速采样计算 .在具体实现中 ,提出了单缓冲、双通道总线、两级树状网络、通信线程细化等技术手段 .按该设计方案实现的总线计轴器已成功地应用于南京扬子石化铁路连锁系统
In the Fieldbus based on L ONWORKS network, the Neuron chip is the core of the node, but its processing power is not enough for complex computing tasks.In order to enhance the computing power of the node, an asymmetric multiprocessor (AMP) The structure of the control node design, multiple processors connected by a shared bus, Neuron chip as the main processor, the three parallel processors to complete the signal high-speed sampling calculation.In the specific implementation, the proposed single-buffer, dual-channel Bus, two-level tree network, communication thread refinement and other technical means.According to the design of the bus axle counter has been successfully applied to Nanjing Yangzi Petrochemical Railway Chain System