摘要
本文介绍远程无人值守的机房供电和通讯状态的远程检测原理和实现方法,重点介绍该系统的硬件构成和软件流程,电话接口电路、双音多频(DTMF)信号接收芯片和ISD4003系列单片语音录放电路在系统中的具体应用。
The paper introduced the remote detection theory and implementation of the power supply and communication state in the remote Computer Room which can automatic work with unmanned duty, It focuses on the hardware and software of the system, including the application of telephone interface circle, DTMF signal receiver and ISD4003 series single-chip voice record/playback devices.
出处
《仪器仪表用户》
2007年第6期41-42,共2页
Instrumentation
关键词
电话远程检测
DTMF
PIC单片机
语音录放
telephone remote detection
DTMF
PIC microcontroller
Voic e record and playback
