| 摘要: |
| 介绍一种采用ＤＴＭＦ（Ｄｕａｌ－Ｔｏｎｅ Ｍｕｌｔｉｆｒｅｑｅｎｃｙ）信号方式通信的安全报警系统。分析了区域联用报警系统通信原理，并给出了主要电路和软件的设计方法。 |
| 关键词: 报警系统 DTMF方式 电话网 |
| DOI：10.3969/j.issn.1001-893X. |
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| 基金项目: |
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| Safety Alert System By DTMF Communication mode |
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| Abstract: |
| A safety alert system by DTMF(Dual-tone multifrequency)mode is introduced.The data communication principle for the alert network is analysised and the design method of mahor circuit and software are provided. |
| Key words: Alert System,Dual-tone multifrequency,Monolithic computer |
