基于STC单片机用电故障预警的研究

The Electricity Breakdown Prompt System based on Single-Chip-Micro

该系统利用以电磁感应线圈的输出电压为检测用电发生漏电、过载、短路和超压故障时的取样电压信号,通过AT89C52单片机控制,运用HD44780字符液晶显示模块和由ISD1760语音芯片,对用电故障实行字符提示和语音提示,使当用电发生严重故障时不但能实行自动提前跳闸功能,而且在故障出现的前奏就进行预警,避免重大用电事故的发生,保证用电的安全和可靠,补充了目前市面上的用电故障报警缺乏故障预警性能。

Uses output voltage of the electromagnetic induction coil and transformer as voltage signal of the examination family has the leakage,the overload,the short circuit and presses when the breakdown,through 89S52 MCU controlling,utilizes the HD44780 character LCD module and the ISD2560 speech chip,enables it to prompt the character and the voice,when serious failure can automatic advance trip.To change the unitary function of leakage protector and the overload protector,the breakdown appears when shortcomings and so on any prompt,make the family electricity safelier and reliabler.