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公开(公告)号:US06686857B2
公开(公告)日:2004-02-03
申请号:US10099209
申请日:2002-03-14
IPC分类号: H03M100
摘要: Waveform information is transmitted from the ends of a protection zone by first compressing the information using a lossy compression technique such as wavelets and then compressing the lossy compressed waveform information using a loss-less compression technique such as the Burrows-Wheeler transform. Status information is transmitted from the ends of the protection zone by compressing that information using the loss-less technique. The time for transmission can be less than, equal to or greater than the time for one cycle of the power line frequency.
摘要翻译: 通过首先使用诸如小波之类的有损压缩技术对信息进行压缩,然后使用诸如Burrows-Wheeler变换的无损压缩技术压缩有损的压缩波形信息,从保护区的端部发送波形信息。 通过使用无损技术压缩该信息,从保护区的端部发送状态信息。 传输时间可以小于,等于或大于电力线频率的一个周期的时间。