針對(duì)目前汽車追尾事件頻發(fā)問(wèn)題，提出一種防汽車車前和車后追尾的安全裝置設(shè)計(jì)。該設(shè)計(jì)以高性能、低功耗的8位AVR微處理器ATmega8L為核心，結(jié)合霍爾式車速傳感器、激光雷達(dá)測(cè)距裝置和MMA7260QT加速度傳感器，能夠兼顧車前和車后，摒棄以往設(shè)計(jì)中只考慮車前或車后單一性缺點(diǎn)，尤其適用于高速、夜晚或新手行車。
Abstract:
Aiming at the high frequency of vehicle rear-end collision，a safe device design of anti-vehicle rear-end collision is presented.In the design，the high-performance，low-power8-bit AVR microprocessor ATmega8L is utilized as a core combined with Hall-type speed sensor，laser-radar ranging devices and the acceleration sensor MMA7260QT.The design considers both the front and back of a car，and overcomes the drawbacks of former designs in which only the front or the back of the car is considered，so it is especially suitable for high-speed，night or the beginner’s driving.
摘要：介紹了一種使用新型單片機(jī)作為控制單元的焊接防觸電裝置的硬件系統(tǒng)和控制軟件。硬件部分包括Microchip公司的PIC系列單片機(jī)控制部分和由晶閘管組成的強(qiáng)電部分，控制軟件采用PID(Pm-portional Integral Differentia1)控制算法，使得該裝置不僅能夠?qū)崿F(xiàn)焊接的防觸電功能，而且還可以控制焊接電流，使焊接電流滿足焊接工藝要求的恒流特性，獲得較好的焊接效果。關(guān)鍵詞：?jiǎn)纹瑱C(jī)應(yīng)用；焊接電源；防觸電
