一种点对多点移动数据通信系统的设计，该系统涉及到单片机电路，防通信冲突，等各种问题，系统可用于智能交通监管，也可用于其他实时性要求较高，数据量不大的应用-A point-to-multipoint mobile data communications system design, the system relates to single-chip circuitry, anti-communication conflicts, and other various problems, the sy