【正文】
1 家用紅外報(bào)警器設(shè)計(jì) 設(shè)計(jì)人:何寧 摘要 : 本產(chǎn)品以單片機(jī)為核心,運(yùn)用模擬電路進(jìn)行采樣,信號(hào)放大、對(duì)單片機(jī)電源控制與遙控開關(guān)機(jī),工作時(shí)第一次延時(shí) 1 分鐘保證了安裝人員安全離開,然后進(jìn)入單片機(jī)不工作的低耗能狀態(tài)。該探頭的有效范圍是 7 米,在探測(cè)到人員之后立即開啟單片機(jī),利用單片機(jī)控制蜂鳴器周期性報(bào)警。 關(guān)鍵詞 : 單片機(jī)、延時(shí)、周期性報(bào)警、靜態(tài)低功耗 Summary: This product MCU, using analog circuit for signal sampling, signal amplification, onchip power control and remote on/off control, delays 1 minutes when works for the first time for people who installs it to go away safely, and then goes to leave the MCU awaiting on a low energy State. The probe of the valid range is 7 meters, and the MCU opens when immediately detected people, microputer buzze