多处理器结构的Lon Works网络智能控制器设计与实现

Design and Implementation of Intelligent Multiprocessor Controller Based on LonWorks Network

基于LON总线的LonWorks控制网络中 ,Neuron芯片是控制节点的核心 .但是 ,其处理能力不足以胜任复杂的外部事件 .为了增强节点的控制能力 ,本文提出了一种非对称结构、模块化的多处理器控制网络节点设计方案 ,并将几种通用多处理器间通信的方法进行了分析和比较 .Neuron芯片和两片MCU(89C5 2 )根据不同事件处理任务以并行和串行方式连接 ,分别完成了相应的通讯和控制功能 .在具体实现中 ,运用了模块化、非对称结构、流量控制以及外部事件处理优化等技术手段 .

Traditional design of LonWorks node is based on single processor architecture. To enhance node performance and process more external events, a kind of LonWorks node with asymmetric architecture design is introduced in this paper, which consists of three heterogeneous multiprocessors and two kinds of communication mode, i.e. serial and parallel ways. The design is primarily based on function modules. Implementation of data flow control and optimized external events are also proposed. In addition, it Compares and analyzes this architecture with common communication modes of multiprocessors.