CAJ | 학술논문

随着物质生活水平的不断提高，人们对个人安全、家庭财产安全和公共场所安全越来越重视，安全已成为一种市场需求。基于电话通信网覆盖范围广泛的特点，本文设计了一款简洁、经济的电话报警器。本设计以AT89S52单片机为控制核心。烟雾传感器MQ-2检测是否发生可燃气体（如：煤气、天然气、氢气、甲烷、丙烷和丁烷）泄漏。DTMF收发芯片MT8880编码产生和解码双音频信号。语音芯片ISD1820完成语音录制、提示及播放功能。矩阵键盘及LCD 1602用作人机接口，同时采用时钟日历芯片DS12C887获取当前时间、星期及日期。
수착물질생활수평적불단제고，인문대개인안전、가정재산안전화공공장소안전월래월중시，안전이성위일충시장수구。기우전화통신망복개범위엄범적특점，본문설계료일관간길、경제적전화보경기。본설계이AT89S52단편궤위공제핵심。연무전감기MQ-2검측시부발생가연기체（여：매기、천연기、경기、갑완、병완화정완）설루。DTMF수발심편MT8880편마산생화해마쌍음빈신호。어음심편ISD1820완성어음록제、제시급파방공능。구진건반급LCD 1602용작인궤접구，동시채용시종일력심편DS12C887획취당전시간、성기급일기。
With the continuous improvement of living standards, people on their own personal safety, safety of family property, and safety of public places increasing emphasis, security has become a market demand. Based on telephone communication network covering the wide range of feature, this paper designed a simple and economical phone alarm. In this design, AT89S52 microcon-troller is adopted as the control core. Smoke sensor MQ-2 detects the occurrence of combustible gas (such as:gas, natural gas, hydro-gen, methane, propane, and butane) leak. DTMF transceiver chip of MT8880 encodes and decodes dual audio signals. Voice chip of ISD1820 completes voice recording, tips and playback. Matrix keyboard and LCD 1602 are used as a man-machine interface, while using the clock calendar chip of DS12C887 to get the current time, week and date.