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电力录波系统的性能受多因素制约,以致系统实时性较难提高,鉴于此,采用改进的基于链路层网络传输方法,通过应用层直接访问网络控制器,避免了系统中对数据帧的封装与解析的冗余操作,提高了系统实时性。通过对系统中各接口数据处理时间的精确测量,可知制约电力录波系统实时性的主要因素为处理器间总线访问速度、录波文件形成效率、故障文件存储与网络传输速度,且网络传输速度为影响系统实时性瓶颈因素。通过后置存储功能,调整并行总线访问模式,优化故障录波文件形成逻辑,以减小对实时性的影响。实际测试验证了系统功能的有效性与实时性。
In view of this, the improved link layer based network transmission method is adopted to directly access the network controller through the application layer, which avoids the problem that the data frame Packaging and analysis of redundant operations, improve system real-time. Accurate measurement of data processing time of each interface in the system shows that the main factors restricting the real-time performance of the power recording system are the bus access speed between processors, the efficiency of recording wave file formation, the storage of fault files and the network transmission speed, and the network transmission speed To affect the real-time system bottlenecks. Through the post-storage function, adjust the parallel bus access mode, optimize the formation of the fault recorder logic to reduce the impact on real-time. The actual test verifies the effectiveness and real-time performance of the system.