在keil环境下实现stc12c5404单片机控制停车场道闸程序，包含有起杆，落赶，中停。防撞，防爬，防碰功能，具有红外压力波保护-Environment to achieve stc12c5404 in keil Parking Barrier SCM program, contains from pole, down in time, in the stop. Crash, anti-climb, anti-collision function, the pressure wave with