FlexRay总线在模块化通信导航识别系统中的应用

针对新型模块化通信导航识别( MCNI)系统对高质量数据通信的实际需求,从总线速率、实时性、可靠性、可扩展性等方面分析了现有几型总线存在的适配性问题,提出将新一代FlexRay总线技术应用到MCNI系统中,构建了基于双通道冗余拓扑构型的全新的MCNI系统总线架构,并给出了总线时隙分配和硬件框图。实验结果表明FlexRay总线传输速率可达10 Mb/s,能在重负荷情况下为MCNI系统提供实时可靠的信息交互,可为其他模块化传感器系统总线设计提供借鉴。

Application of FlexRay bus in modular communication navigation and identification system

According to the requirement of high data communication quality for novel modular communica-tion navigation and identification ( MCNI) system,the suitability problem existing in several kinds of bus is analyzed from the aspect of bus speed,real-time characteristic,reliability and expansibility. New generation of FlexRay bus technology is applied in MCNI system, a novel MCNI system bus architecture based on double channel is constructed,and the bus time distribution and hardware diagram is given in this paper. Experiment result shows the transmission speed of the FlexRay bus is up to 10 Mb/s. This strongpoint can support real-time and reliability information communication for MCNI under heavy traffic load. The tech-nology proposed in this paper can be used in modular sensor system bus design for reference.