应用科技
應用科技
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YING YONG KE JI
2013年
5期
29-34
,共6页
CAN总线%嵌入式系统%矿用%语音通信%广播主/分站%广播对讲系统
CAN總線%嵌入式繫統%礦用%語音通信%廣播主/分站%廣播對講繫統
CAN총선%감입식계통%광용%어음통신%엄파주/분참%엄파대강계통
CAN bus%embedded system%coal mine%voice communication%broadcasting master/sub-station%broadcasting intercom system
分析了当前矿用广播对讲系统的实现方式和存在的问题，介绍了CAN总线的特点，提出了一种基于CAN总线的嵌入式矿用广播对讲系统的设计方案。系统采用ARM9芯片作为主控制器，以CAN总线作为传输方式，用AMBE算法来对语音信号进行压缩编码，从而降低语音信号对通信带宽的要求，以实现低速率语音信号在CAN总线上的远距离传输。实验测试结果表明，采用CAN总线实现煤矿井下语音通信，传输距离远，语音质量高。
分析瞭噹前礦用廣播對講繫統的實現方式和存在的問題，介紹瞭CAN總線的特點，提齣瞭一種基于CAN總線的嵌入式礦用廣播對講繫統的設計方案。繫統採用ARM9芯片作為主控製器，以CAN總線作為傳輸方式，用AMBE算法來對語音信號進行壓縮編碼，從而降低語音信號對通信帶寬的要求，以實現低速率語音信號在CAN總線上的遠距離傳輸。實驗測試結果錶明，採用CAN總線實現煤礦井下語音通信，傳輸距離遠，語音質量高。
분석료당전광용엄파대강계통적실현방식화존재적문제，개소료CAN총선적특점，제출료일충기우CAN총선적감입식광용엄파대강계통적설계방안。계통채용ARM9심편작위주공제기，이CAN총선작위전수방식，용AMBE산법래대어음신호진행압축편마，종이강저어음신호대통신대관적요구，이실현저속솔어음신호재CAN총선상적원거리전수。실험측시결과표명，채용CAN총선실현매광정하어음통신，전수거리원，어음질량고。
This paper analyzes the problems of current mine broadcasting intercom system, introduces the characteristics of the CAN bus, and proposes a design scheme of embedded mine broadcasting intercom system based on CAN bus. This system uses ARM9 chip as the main controller, CAN bus as transmission mode, AMBE algorithm to achieve voice signal compression encoding, thereby reducing the requirements of voice signal on the communication bandwidth. This system achieves the long-distance transmission of low-rate voice signal on CAN bus. The experimental results show that voice communication in an underground coal mine using CAN bus is realized for mine long-distance and high reliability.
