基于Android Hrtimer改善红外信号学习准确性方法  

Method Based on Android Hrtimer to Improve Accuracy of Infrared Signal Learning

作　　者：张惠兴[1] 钟文涛[1] 张耿旭[1] 

机构地区：[1]TCL集团股份有限公司,广东惠州516006

出　　处：《电视技术》2014年第10期53-55,共3页Video Engineering

摘　　要：在设计一款数字家庭产品时,由于要控制相关设备,需要对相关设备的红外遥控信号进行学习。针对在进行红外信号学习时,使用Android系统中的μs级定时器出现准确性差的问题,提出一种基于Adroid Hrtimer的改进方法,一方面对定时精度进行改进,另一方面通过跨区域对载波进行采集,加上平均滤波,提高容错性。通过编程实现及测试验证,对于红外信号的学习准确性有明显的改善效果。In the design of a digital home product, because of controlling the related equipment, learning the infrared remote control signal of related equipment is required. During learning infrared signals, for the problem of poor accuracy of using the microsecond＇s level timer of Android system, a method based on Android Hrtimer is proposed. One hand it can improve the timing accuracy, the other hand can improve fault tolerance by the carrier collection across the region with average filtering. Through programming and testing, the results indicate that the improving effect is good.

关 键 词：红外信号学习 方法 

分 类 号：TN919[电子电信—通信与信息系统]