基于MT8880的对讲机语音监控系统  

Interphone voice monitoring system based on MT8880

作　　者：马辉[1] 朱绣鑫[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《电子测量技术》2006年第6期177-179,共3页Electronic Measurement Technology

摘　　要：为便于无线调度通信的管理,通过分析对讲机和车载电台的工作原理,利用DTMF信号,设计了一种对讲机语音监控系统。该系统利用车载电台接收对讲机发出的DTMF身份码信号和语音信号,通过监控电路解码出数字身份码,然后将数字身份码和语音信号送入计算机,建立相关的数据库,实现语音数据的查询、统计和删除等,从而达到监控的目的。In order to manage the wireless communication for scheduling conveniently, with the analysis of the work principle of radio transceiver and interphone, an interphone voice monitoring system was designed with Dual-Tone Multiple Frequencies （DTMF） signal. In the system, a radio transceiver was used to receive the DTMF ANI code and the voice signal transmitted by the interphone- The monitoring circuit decodes the DTMF ANI code into the numerical ANI code. Then the numerical ANI code and the voice are transmitted to a computer, the computer establishes some databases so that the voice data can be queried, or deleted. The design principle and structure of the system are introduced, including the hardware design and the software design.

关 键 词：双音多频 单片机 对讲机 监控 

分 类 号：TN912.3[电子电信—通信与信息系统]