基于CH317Q的USB长线传输设计及应用
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摘要
传统的USB鼠标、键盘传输线长度不到两米,不能满足远距离人机交互操作的需求.为解决USB信号传输距离短的问题,本文提出了一种基于USB延长器控制芯片的方案.该方案可满足100 m的USB长线传输距离,已经在某型测控计算机中使用,经检验系统运行稳定可靠.
The length of the traditional USB mouse and keyboard transmission lines is less than two meters, which can not meet the needs of long-distance data acquisition and transmission. In order to solve the short distance problem of USB signal transmission, this paper proposes a scheme based on USB extender control chip. The program can meet the 100-meter USB long-distance transmission distance, has been used in a type of measurement and control computer, the test system is stable and reliable.
The length of the traditional USB mouse and keyboard transmission lines is less than two meters, which can not meet the needs of long-distance data acquisition and transmission. In order to solve the short distance problem of USB signal transmission, this paper proposes a scheme based on USB extender control chip. The program can meet the 100-meter USB long-distance transmission distance, has been used in a type of measurement and control computer, the test system is stable and reliable.
引文
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[2] 杨红军,洪三其.基于FPGA的高标清数字光端机的研究[J].制造业自动化,2015 (10) :117-120.
[3] 刘泽西,程晶晶,孔力.基于 USB2.0接口的高速实时数据采集系统[J].测控技术,2007,26(2):34-37.
[4] 马伟.计算机USB系统原理及其主/从机设计[M].北京:北京航空航天大学出版社,2004.1
[5] 刘荣.圈圈教你玩USB. [M].北京:北京航空航天大学出版社(第2版),2013.