基于VxWorks的网络与串口通信转换

Communication Conversion Between UART and Ethernet Based on VxWorks

当前大部分武器只具备简单的串行通信接口,无法与舰上火控系统通过以太网进行通信,尤其在有些武器设备中,一个以太网接口需要管理多个带串行通信接口的设备,这用一般的转换器无法实现。针对这一问题,基于VxWorks平台,在ARM硬件环境下,设计了一个嵌入式的专用转换设备,可以将多个武器设备中的串行数据和火控系统的一个网络接口进行信息桥接,并针对武器系统的特殊要求,在软件设计上,使用实时任务调度方式保证了信息传递的可靠性和实时性,从而建立了武器同舰上火控系统的连接。试验结果表明,该通信转换设备工作可靠,实时性强,完全能满足武器系统的要求,提高了武器系统的作战能力。

Most of the existing weapons can not communicate with vessel＇s fire control system in naval vessels because of their simple serial communication interfaces. Especially in some weapons, one Ethernet interface needs to communicate with four RS232,which can not be implemented with common converter. Therefore, an embedded conversion system is designed based on VxWorks in the environment of advanced RISC machine（ARM）. The system can transfer between universal asynchronous receiver/transmitter（UART） data of four weapons and user datagram protocol（UDP） package of FCS. Software design using real-time task schedule ensures the reliability and real-time of communication. Test results show that the system can meet the demands of reliability and real-time, and can enhance operational capability of weapon system.