计算机与现代化

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基于波形存储型红外学习的数据压缩方法

  

  1. 湖南农业大学信息科学技术学院,湖南长沙410128
  • 收稿日期:2013-12-30 出版日期:2014-04-17 发布日期:2014-04-23
  • 作者简介:作者简介: 曾炼成(1974),男,湖南隆回人,湖南农业大学信息科学技术学院讲师,硕士,研究方向:嵌入式系统,无线传感器网络;周小云(1979),女,湖南邵阳人,讲师,硕士,研究方向:嵌入式系统。
  • 基金资助:
     
    基金项目:湖南省科技厅基金资助项目(2012GK3114, 2013GK3106)

Approach to Data Compression Based on Waveform Storage Infrared Remote Control Transmitter

  1. Information Science and Technology Institute, Hunan Agricultural University, Changsha 410128, China
  • Received:2013-12-30 Online:2014-04-17 Published:2014-04-23

摘要:  

摘要: 波形存储型红外遥控学习不受波形编码格式以及协议类型限制,数据编码压缩是其关键所在。以红外载波频率38 kHz来计量脉冲宽度,将脉冲波形转化为一维有符号数数组并聚类;利用先验知识构建固定长度的静态字典,对短脉冲以2 bit编码,长脉冲以多个编码短脉冲串联构成。实际测试表明,红外遥控学习数据编码压缩率高,编码数据还原红外遥控波形控制准确。

关键词: 数据压缩, 聚类, 静态字典编码, 红外遥控

Abstract:  

Abstract:  Waveform storage infrared control transmitter is unrestricted from coding format and protocol type, and data compression and coding is the key issue. The pulse width is measured with IR carrier frequency 38 kHz. The high / low pulse waveform is turned into a onedimensional array of signed numbers and clustered. A fixedlength static dictionary is built through prior knowledge. The short pulses are encoded as 2bit, and the long pulses are made up of some encoded short pulses in series. Actual tests show that the data compression rate is high, and transformed infrared remote waveform can control accurately.

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