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介绍了一种应用MPEG算法的新型列车音频、语音监控记录设备的系统架构、特点和硬软件的实现方法。运用DSP技术对音频、语音信号进行处理、压缩和记录,从而实现了列车当前状态信息的记录和机车语音联控,进而协同监控装置分析行车故障并规范乘务员的工作用语。
This paper introduces the system architecture, features and hardware and software implementation of a new audio and voice recording and monitoring system for trains applying MPEG. The DSP technology is used to process, compress and record the audio and voice signals, so as to realize the recording of the current state information of the train and the locomotive voice control. The monitor device is then used to analyze the driving fault and regulate the flight attendant’s working language.