ntp gps

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(date_time * GPS) {//************************************* * ************* // if the second number first goes out, after the time data is output, add the time data + 1 second GPS-> second ++; // Add a second if (GPS-> second> 59) {GPS-> second = 0; GPS-> minute ++; If (

Abstract: In the WiTadowsCE embedded system, the serial port is used to implement GPS and PDA communication. First, introduce the data format of the GPS signal, and describe the system's hardware and software environment and serial communication. Finally, the GPS signal processing module is designed to describe in detail how to use the embedded programming langua

Today there is a small project, completely self-made, originally thought very simple NTP service, I give toss for 2 hours only to support the head (formerly are operations, not too much attention, so this technology, in simple all need to kiss taste AH), here records for the future do not waste time.Target environment, 5 Linux CentOS 6.3, one as NTPD service and external public NTP service synchronization t

Document directory ESX Server 2.0.1 and later ESX sever 2.0.0 Esx3.5 NTP configuration error Solution This article mainly solves the "failed to change host configuration" Error When configuring esx3.5 NTP using GUI. The solution is to manually modify the configuration file. Note: After the manual modification is completed, the time configuration information displayed in the Vic does not match the actu

Tags: Linux ntp time synchronizationFirst, build time synchronization server1. Compile and install NTP serverRpm-qa | grep NTPIf not found, the NTP package is not installed, the NTP packet is found on the CD, and theRPM-UVH ntp***.rpmTo install2. Modify the ntp.conf configur

The NTP server----operation of the Linux real-World Deployment series explains how to deploy a load-balanced and highly available NTP server under a simple architecture. Next, we need to understand the maintenance of the technology, so as to better escort the company's business AH. NTP server maintenance is divided into 2 parts, the first part of day-to-day mana

Preface a time error occurred on a self-managed server, which caused a problem in the display time of mail sending, here we will take the time to record the process of building an NTP server. The Network Time procotol (NTP protocol) aims to deliver a unified and standard time on the Internet. The specific implementation scheme is to specify several clock source websites on the network to provide time servic

NTP server: Network time Protocol (NTP) is a protocol used to synchronize the timing of a computer, which allows the computer to synchronize its servers or clock sources (such as quartz clocks, GPS, etc.) It provides high-precision time correction (less than 1 milliseconds on LAN versus standard, dozens of MS on WAN) and can be referred to as a cryptographic ackn

Create an NTP environment in Centos Recently, an Openstack and Ceph cluster were built. Because multiple nodes exist in the cluster and time synchronization is required between nodes, NTP is required. In addition, in some cases, the network environment is closed, therefore, you need to build an NTP server. Server IP Address Role Description Synchronization mode 1

For details about how to accept the GPS time-Linux general technology-Linux technology and application information, see the following. The problem is that in linux (version is ubuntu10), the ntp server can synchronize the Network Time, but cannot synchronize the gps time. Add the following in make meunconfig: Kernel timer client (Testing client, use for deb

Transfer from: Http://www.cnblogs.com/emouse/archive/2013/05/29/3105745.htmlGPS Module IntroductionThe latest third-generation chip Sirfstar III (GSW 3.0/3.1), released in 2004 by the SIRF chip, has led to a peak in performance for civil GPS chips, with a much higher sensitivity than previous products. This chip improves sensitivity by using a 200,000-time/frequency-dependent device, with a cold boot/warm boot/Hot boot time of 42s/38s/8s, which can tr

First, build time synchronization server1. Compile and install NTP serverRpm-qa | grep NTPIf not found, the NTP package is not installed, the NTP packet is found on the CD, and theRPM-UVH ntp***.rpmTo install2. Modify the ntp.conf configuration fileVi/etc/ntp.conf①, first configuration: Allows clients of any IP to have

Network Time Protocol (NTP) is used to synchronize the system time of different hosts on the network. All hosts you manage can synchronize their time with a specified time server called an NTP server. On the other hand, an NTP server synchronizes its time with any public NTP server, or the server you select. All system

GPS intermediate driver Since the introduction of GPS intermediate driver (GPS intermediate driver) in Windows Mobile 5.0Program(Gpsid), it is much easier to develop a Windows Mobile Application Based on GPS (global positioning system. The reason is that it adds an intermediate layer between the application program c

0 IntroductionThe maturation and development of GPS technology provide a powerful guarantee for the precise and real-time positioning of all kinds of moving vectors. such as the use of GPs to the vehicle or ship navigation and monitoring [2]. At the same time, with the development of information technology, the size of PDA becomes more and more compact, and the function of integration becomes more and more

Network Time Protocol (NTP) is a standard Internet Protocol used for Time synchronization on the Internet. NTP is used to synchronize computer time to certain time standards. The current Time standard is Universal Time Coordinated ). The primary developer of NTP is Professor David L. Mills from the University of Delaware. What is the use of

This paper expounds the method of using serial port to realize GPS and PDA communication in WITADOWSCE embedded system. Firstly, the data format of GPS signal is introduced, and the software and hardware environment of the system and serial communication are described. Finally, the design of GPS signal processing module, detailed description of how to use embedd

Real-time kinematic real-time dynamic difference method. This is a new and commonly used GPS measurement method. Previous static, fast static, and dynamic measurements all need to be calculated afterwards to achieve centimeter-level accuracy, the GPS-based GPS is a measurement method that can obtain centimeter-level positioning accuracy in real time in the field.

Excerpt from NTP website: http://support.ntp.org/bin/view/Support/ConfiguringAutokey6.7. Autokey Configuration for NTP stable releasesThis topic provides a step-by-step guide for setting the NTP Autokey authentication for NTP stable release versions 4.2.6 a nd later. The material contained in this topic is not being ap