| 16路电话计费控制板的技术实现 |
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| 引用本文： | 贾书洪,杨洁.16路电话计费控制板的技术实现[J].数字社区&智能家居,2010,6(10):2504-2505. |
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| 作者姓名： | 贾书洪 杨洁 |
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| 作者单位： | 空军航空大学实验中心; |
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| 摘 要： | 该文主要应用AT89C52CPU、MT8860DTMF双音频解码器等,较好的实现了16路电话线路的计费和控制功能,并能以多板堆叠方式进行扩展,最多可以扩展到1024线。从而为企事业、宾馆酒店提供了一种能实现实时电话计费和控制的设备,为科学合理通信管理提供必要的技术手段。文中简要介绍了AT89C52CPU、MT8870电路的特点,给出了系统组成结构、成熟的电话线路接口电路和软件实现框图。
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| 关 键 词： | 电话计费控制 485通信 单片机 |
The System Preparation for 16 Channel Telephone Cost Automatic Charging |
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| JIA Shu-hong,YANG Jie.The System Preparation for 16 Channel Telephone Cost Automatic Charging[J].Digital Community & Smart Home,2010,6(10):2504-2505. |
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| Authors: | JIA Shu-hong YANG Jie |
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| Affiliation: | Experimental Center;Aviation University of Airforce;Changchun 130022;China |
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| Abstract: | By using AT89C52CPU microprocessor and MT8860DTMF,the 16 system is established for 16 channel telephone cost automatic charging.By stack this kind of system one by one,the controlled channel number can be enhanced to 1024,which is suitable for big hotel or large company to realized the telephone system organization and automatic charging.The characters of AT89C52CPU microprocessor and MT8870 circuit,the system structure,the interface circuit,and the software construction routine are also provided in this pa... |
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| Keywords: | telephone cost charging system 485 communication SCM |
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