CAJ | 학술논문

为了准备教育部举办的大学生电子设计竞赛,针对越野车比赛计时的问题,设计制作了一款双赛道计时器;采用对射式光电开关作为传感器,利用 MAX232完成 TTL 电平和 RS232电平的转换、用锁存器控制数码管、7805芯片稳压,光电耦合电路来传递和转换信号;经过实际测试该计时器性能稳定、成本低廉,可以广泛用于赛车比赛计时.
위료준비교육부거판적대학생전자설계경새,침대월야차비새계시적문제,설계제작료일관쌍새도계시기;채용대사식광전개관작위전감기,이용 MAX232완성 TTL 전평화 RS232전평적전환、용쇄존기공제수마관、7805심편은압,광전우합전로래전체화전환신호;경과실제측시해계시기성능은정、성본저렴,가이엄범용우새차비새계시.
Preparing for the National Undergraduate Electronic Design Contest.Aiming at the cross-country car game timing problems,a double track timer designed ;using the photoelectric switch as a sensor,use of MAX232 conversion to complete the TTL level and RS232 level,With the latch to control digital tube,the 7805 chip power,a photoelectric coupling circuit using subtle to transfer and conversion signal ;after the actual test the timer,stable performance,low cost,can be widely used for racing.