| 一种基于CAN总线的煤矿数字化扩音电话系统的设计 |
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| 引用本文： | 丁恩杰,苗曙光,朱微维,赵正芳,李彦玮.一种基于CAN总线的煤矿数字化扩音电话系统的设计[J].工矿自动化,2010,36(1):66-69. |
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| 作者姓名： | 丁恩杰 苗曙光 朱微维 赵正芳 李彦玮 |
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| 作者单位： | 中国矿业大学信电学院,江苏,徐州,221008 |
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| 基金项目： | 国家自然科学基金项目(60972059) |
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| 摘 要： | 文章分析了现有的煤矿调度电话系统的弊端,介绍了一种基于凌阳SPCE061A单片机和CAN总线的矿用扩音电话系统的设计方案。该系统利用凌阳音频压缩编码算法库(SACM-LIB)实现对语音数据在10~24 kbit/s范围内的压缩编码,从而得到适合在CAN总线中传输的中低速率的语音数据;对于接收到的语音数据,利用语音解码算法,实时解码后送入功放模块,驱动扬声器播放。测试结果表明,该系统稳定可靠,传输距离远,语音质量高,为解决现有煤矿语音通信系统实时性不足的问题提供了一种新的解决方案。
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| 关 键 词： | 煤矿 扩音电话 数字化 CAN总线 SPCE061A |
Design of Digital Broadcast Telephone System of Coal Mine Based on CAN Bus |
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| DING En-jie,MIAO Shu-guang,ZHU Wei-wei,ZHAO Zheng-fang,LI Yan-wei.Design of Digital Broadcast Telephone System of Coal Mine Based on CAN Bus[J].Industry and Automation,2010,36(1):66-69. |
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| Authors: | DING En-jie MIAO Shu-guang ZHU Wei-wei ZHAO Zheng-fang LI Yan-wei |
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| Affiliation: | School of Information and Electrical Engineering of CUMT./a>;Xuzhou 221008/a>;China |
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| Abstract: | The paper analyzed disadvantages of existing dispatching telephone system in coal mine,introduced a design scheme of broadcast telephone system based on Sunplus SPCE061A single-chip microcomputer and CAN bus.The system uses Sunplus audio compression coding algorithm library to realize a voice compression coding in 10~24 kbit/s,so as to get voice data with middle and low rate which fits transmission in CAN bus.For received voice data,the system uses relevant voice decoding algorithm to decode real-timely and... |
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| Keywords: | coal mine broadcast telephone digitalization CAN bus SPCE061A |
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