為了解決用電安全隱患。該系統(tǒng)以電磁感應(yīng)線圈和變壓器的輸出電壓為檢測用電發(fā)
生漏電、過載、短路和超壓故障時的取樣電壓信號,通過8051 單片機(jī)控制，運(yùn)用HD44780
字符液晶顯示模塊和由ISD2650 語音芯片，使其具有字符提示和語音提示，在嚴(yán)重故障時又能自動提前跳閘。改變了目前的漏電保護(hù)器和過載保護(hù)器功能單一，故障出現(xiàn)時沒有任何提示等缺點(diǎn)。 經(jīng)大量實(shí)驗(yàn)證明單片機(jī)多功能用電故障控制器具有性能穩(wěn)定、安全、可靠是理想的用電保護(hù)提示器。
關(guān)鍵詞；磁感線圈；8051 單片機(jī)芯片；HD44780 字符液晶顯示模塊；ISD2650 語音芯片

Abstract: 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 8051 MCU controlling, utilizes the HD44780 character LCD module and the ISD2650 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.
Key words: Magnetic induction coil; 8051 MCU controlling; the HD44780 character LCD
module ;ISD2650 speech chip