| 电话按键音识别嵌入式系统的设计 |
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| 引用本文： | 陈为召,魏为民.电话按键音识别嵌入式系统的设计[J].上海电力学院学报,2013,29(6):615-619. |
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| 作者姓名： | 陈为召 魏为民 |
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| 作者单位： | 上海电力学院计算机科学与技术学院，上海 200090;上海电力学院计算机科学与技术学院，上海 200090 |
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| 基金项目： | 上海市自然科学基金(11ZR1414300);上海市教育委员会科研创新项目(11YZ194) |
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| 摘 要： | 设计了一种电话按键音识别嵌入式系统，采用基于STC89C52单片机和DTMF信号收发芯片MT8880进行信号采集和处理，给出了系统的硬件电路结构图和系统软件设计方法．系统具有硬件处理信号的功能，由单片机从声音中获得按键信息并显示在LCD1602上，根据测试结果可知，系统具有操作方便、性能稳定和检测准确率高等优点．
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| 关 键 词： | 电话按键音 信号识别 嵌入式系统 |
| 收稿时间： | 9/3/2013 12:00:00 AM |
Telephone Keypad Tone Recognition Embedded System Design |
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| CHEN Weizhao and WEI Weimin.Telephone Keypad Tone Recognition Embedded System Design[J].Journal of Shanghai University of Electric Power,2013,29(6):615-619. |
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| Authors: | CHEN Weizhao and WEI Weimin |
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| Affiliation: | School of Computer Science and Technology, Shanghai University of Electric Power;School of Computer Science and Technology, Shanghai University of Electric Power |
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| Abstract: | Dual tone multiple frequency signal acquisition and processing is studied.A telephone keyboard tone recognition embedded system is designed based on STC89C52CCM and DTMF signal reception and sending chip MT8880.The hardware structure diagram of the system and the design method of software program are given.The system can process signal by hardware,and the message which hides in sound can be displayed on the LCD 1602.Test results show that the sound process system based on the STC89C52CCM and receiving and sending chip MT8880 has many advantages,such as convenient operation,stable running and accurate test results. |
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| Keywords: | telephone keyboard tone signal recognition embeded system |
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