| 基于CAN总线的嵌入式矿用广播对讲系统设计 |
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| 引用本文： | 王玉林,欧青立.基于CAN总线的嵌入式矿用广播对讲系统设计[J].应用科技,2013(5):29-34. |
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| 作者姓名： | 王玉林 欧青立 |
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| 作者单位： | 湖南科技大学信息与电气工程学院,湖南湘潭411201 |
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| 基金项目： | 国家自然科学基金资助项目（11272119）;湖南省工业科技支撑基金资助项目（2011GK3160）;湖南科技大学研究生创新基金资助项目（S110115）（S120020）. |
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| 摘 要： | 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．
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| 关 键 词： | 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 |
Design of embedded mine broadcasting intercom system based on CAN bus |
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| WANG Yulin,OU Qingli.Design of embedded mine broadcasting intercom system based on CAN bus[J].Applied Science and Technology,2013(5):29-34. |
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| Authors: | WANG Yulin OU Qingli |
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| Institution: | ( Institute of Information and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China) |
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| Abstract: | 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. |
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| Keywords: | CAN bus embedded system coal mine voice communication broadcasting master/sub-station broadcasting intercom system |
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