| 摘要: |
| 介绍了一种利用双音多频(DTMF)信号进行数据通信的接口电路,具体阐述了该电路的组成原理以及软硬件的实现方法. |
| 关键词: 自动检测系统 双音多频(DTMF) 电力载波通信 数据通信 单片机 接口电路 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:October 26, 2006Revised:March 20, 2007 |
| 基金项目:河北省自然科学基金 |
|
| Design of the Dual-Tone Multifrequency(DTMF) Data Communication Interface Circuit |
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| Abstract: |
| An interface circuit utilizing DTMF(Dual-Tone Multifrequency)signal to transfer data is introduced.The principle of the circuit and the software and hardware realization method are described. |
| Key words: automatic detection system,dual-tone multifrequency(DTMF),powerline carrier communication,data communication,single-chip computer,interface circuit |
