CANopen协议在语音通信系统的应用研究  

Research on Application of CANopen Protocol in Voice Communications System

作　　者：丁恩杰[1] 踪晓志[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《煤矿机电》2010年第3期47-50,共4页Colliery Mechanical & Electrical Technology

摘　　要：CAN只包括物理层和数据链路层两个底层协议,不能满足实时高效语音通讯的要求。设计开发了以CANopen协议为基础,在CAN总线上远程传输语音数据的语音通信系统。详述其设计原理、硬件组成和软件流程,给出部分关键硬件原理图和软件流程图。实践表明,采用CAN-open协议的语音通信系统可以在CAN总线上以极低的语音通信速率(2.4kbit/s)进行语音数据传输,实现语音的广播、组播、点播、MP3播放功能。As the CAN just includes the physical layer and data link layer protocol,it is difficult to meet the needs for real-time and effective voice communication. The voice communication system based on CANopen protocol is developed. The design principle,hardware structure and software blocks are discussed in detail. The key hardware schematics and software flow charts are given. Practice shows that the system is able to transmit voice data at very low rate （2. 4 kbit/s）,and achieve voice broadcast,multicast,play on demand and MP3 functions.

关 键 词：CANOPEN协议 语音 MP3 PIC18F458 AMBE-1000 

分 类 号：TN914[电子电信—通信与信息系统]