基于Wi-Fi的NTP无线授时服务器的设计与实现

摘要

为满足需求，给出了一种基于Wi-Fi的NTP无线授时服务器的设计方案。该服务器用GPS作为时间源，将GPS接收机输出的时间信息传送给ARM控制器，进行时码信息的采集与处理，通过Wi-Fi无线收发模块将服务器连接到网络层，并采用NTP协议实现授时。授时精度在局域网内可达到1 ms。%This paper presents a design of NTP wireless time server based on Wi-Fi for meeting the needs. In this time server, the GPS is adopted as time source, the data acquired by the GPS receiver is sent to the ARM controller, the time code information is acquired and processed by the ARM controller, and the time server is linked to the network layer via the Wi-Fi wireless transceiver module. The time server completes the time service with the NTP protocol, and the time service precision can reach 1 ms within the local network.