中文摘要：

介绍了军用车辆常用数据总线——CAN总线、1553B总线及MIC总线的体系结构，对其实时性、可靠性、经济性等指标进行了比较，分析了各自的应用场合及发展趋势。结果表明，CAN、1553B和MIC三种总线均具有传输速度快、可靠性高、实时性好等特点；CAN总线因其技术开放性和较高的性价比，获得了比MIC和1553B总线更广泛的应用；1553B和MIC总线则在航空、军事等领域应用较多；MIC总线较1553B结构简单，但在实现功能复杂的系统时没有1553B总线灵活。

英文摘要：

Architectures of data buses often performances such as the real-time, reliability used in vehicle are introduced. We compare and economics of data buses, and analyze the application circumstance and trend in future. Results show there are high transmission rate, high reliability and real-time in 1553B bus, MIC bus and CAN bus. CAN bus is used more widely than 1553B bus and MIC bus because of its opening and low cost. 1553B bus and MIC bus are often used in aviation and military. The structure of MIC bus is simpler than that of the 1553B bus, but MIC bus is less flexible than 1553B bus for complex system.