多节点红外长距数据通信模式设计  

Design of multi-node infrared long-range communication pattern

作　　者：宋磊磊[1] 杨晖[1,2,3] 杨海马[1] 于小强[1] 李军[1] 胡恒庆[1] 施豪杰[1] V.Zivkovic 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]上海理工大学上海市现代光学重点实验室,上海200093 [3]阿德雷德大学电气与电子工程学院

出　　处：《电子测量与仪器学报》2014年第1期43-47,共5页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然科学基金(61007002);上海市教委重点学科项目(J50505);研究生教育创新项目

摘　　要：为了解决红外无线数据通信距离短的问题,分析了红外无线数据通信的现状,概述了IrDA通信协议及原理,在此基础上设计了一种实际可行、可多节点级联的红外无线通信模块。以支持IrDA协议的单片机为载体,采用串行数据半双工通信传输方式,引入RS485级联结构,实现单个或级联红外无线数据通信。实验结果表明,单个红外节点模块可以实现在35°、120 cm的范围内无误码的有效传输,级联时可以实现300 m长距离通信,设计具有成本低、抗干扰能力强、可靠性高、可方便集成到各种设备等特点。In order to solve the problem of the short distance of infrared wireless data communication, this paper an-alyses the current situation of infrared wireless data communication, summarizes the IrDA communication protocol and principles. On the basis of it, a practical and flexible infrared wireless communication module, which can be multi-node cascaded, is designed. This design adopts the microcontroller as the carrier, accepts the IrDA protocol. In order to achieve a single or cascade infrared wireless data communication, the string half-duplex communication line data transmission mode is used and the RS485 cascade structure is introduced. The experiment result shows that a single infrared node module can realize the effective transmission without an error code within the theta range of 35 degree and the distance range 120cm. It can realize the long-distance communication within 300m when cas-caded. This design has many features： low cost, anti-interference ability, high reliability, easily to be integrated into a variety of devices and instrumentations.

关 键 词：红外无线数据通信 多节点级联 长距离通信 可集成 

分 类 号：TN923[电子电信—通信与信息系统]