1、 - 1 - 水水泵遥泵遥控控电电路路设计与研设计与研制制 摘摘 要要 介绍了以手机模块、双音多频解码集成电路 HY9170HY9170 为核心，通过现有的电 信网络终端来进行远程遥控的远程控制系统的设计思路， 并给出了其系统原理和 电路图。 远程控制系统遥控技术是通过一定的手段对被控物体实施一定距离控制 的一种技术。同时，由于电信线路各地联网，因此，可以充分利用现有的网络资 源跨省市，甚至跨越国家无限长度地进行遥控。该方法采用手机铃声控制，并利 用不同的多音双频铃声来达到对开关的控制，最终实现远程遥控。 DTMF（Dual Tone Multi-frequency）即双音多频，最先应用于拨号
2、系统。双 音多频的拨号键盘是 44 的矩阵，每一行代表一个低频，每一列代表一个高频。 每按一个键就发送一个高频和低频的正弦信号组合。 本次课程设计是基于专用解 码芯片 HT9170 的 DTMF 遥控器的设计和制作。 关键词关键词：手机遥控，DTMF，HT9170,4028 - 2 - Pump remotecontrol circuit Design and Development Abstract Introduced the mobile phone module, DTMF decoder IC HT9170 as the core, through existing telecomm
3、unications networks to carry out remote control terminal remote control system design ideas, and gives its systems for basic circuit. Remote Control Remote control system technology by means of the charged object must implement a certain distance from the control of a technology. Also, because parts
4、 of the telecommunications network lines, so you can make full use of existing network resources, provinces and cities, and even across the country carried out an infinite length of the remote control. The method uses cell phone ring tones control and the use of different polyphonic ring tones to achieve dual control of the switch. Ultimately remote controlDTMF (Dual Tone Multi-frequency) first was applied to dial-up system. Dual tone multi-frequency dial-up keyboard is 4 4 matrix. Each row
