【摘要】 在城市区域交通控制系统中,引入时间服务器、时间中介节点和外部时间基准GPS,设计一种基于网络时间协议(NTP)的系统时钟同步算法。该方法采用主动对时机制,消除了网络竞争机制对系统对时精度的影响,避免了网络“冲突”造成的交通信息传输延时,可方便经济地为交通控制系统各设备提供精确的时间,实现系统时钟的统一。更多还原

【Abstract】 In the city urban traffic signal control system,the introduction time server,the time intermediary pitch point and exterior time datum GPS,designs one kind system time synchronization algorithm based on the network time protocol(NTP).This method uses on own initiative to the time mechanism,eliminated the network competitive system to the system to the time precision influence,has avoided the transportation intelligence transmission time delay which the network "the conflict" creates,may facilitate economically pro-vides the precise time for the transportation control system various equipment,the realization system clock unification.更多还原