基于嵌入式系统Flash存储的无损数据压缩

Flash Memory Lossless Data Compression Based on Embedded System

如今嵌入式系统应用为各种行业提供了更先进的解决方案,这也使行业之间的数据交换复杂性提高,相应地也增加了系统对数据存储容量的需求。如何在不增加系统硬件存储器成本的前提下,提高系统的数据存储容量是目前嵌入式系统的设计与开发者急待探索与解决的问题。简要阐述了Flash存储结构和压缩原理,详细介绍了LZW压缩算法原理,并用实例说明了LZW压缩算法的压缩过程,通过代码调试验证了LZW无损数据压缩在Flash存储中的优势。

With increase in sophistication,there is a corresponding increase in the amount of data being collected and stored.This rise in data volume is placing even more emphasis on design solutions that need to meet stringent performance requirements while staying within cost targets.This paper describes the structure of Flash memory and compression principle,described in detail the principle of LZW compression algorithm,and examples of the LZW compression algorithm for compression and decompression process of debugging code to verify the LZW data compression in any of the advantages of Flash storage.