Study On Time-Checking Based Internet

The evolution of Internet extends the living space,and affects the life style of people. Time plays an important role in the network as it in realistic life. In this paper,through the analysis on the Internet network and the present status of network time baseline,presents an application of the time-checking on network. After analyzing network time protocol and other clock synchronization algorithm,come out with an application of standard time on network,and get out the illustration of system design and realization. The application of standard time on networks is:using the standard time as audit of technical intendance .get the veracity and authoritative agreement of the technical intendance office.The clock model of network meter software is based on the clock of user machines' crystal oscillator. Because the crystal oscillator shift of general users is lager,affected by environment easily,the clock results are not exact. Meanwhile,the data is kept in local,the possibility of being modified and being lost is considerable. It is lacking of authoritative when the argument takes place .In order to overcome the shortness above,cooperating with technical intendance office,we present a new design of Clock software based on client sever model,using network time baseline as time-checking,keeping the data in public sever to improve security and veracity of the data's about time-checking.This thesis also introduces the software's makeup and realization. The software is made up of client and server. In the realization part,particularly introduce some details involved in the software realization,such as the network communication,multi-thread synchronization,shared memory's mutually exclusive accessing,and database operation,etc. At last,present the basic usage of the software. Because the basic function of the software is connecting network,the user operation is comparatively simple. We present the source code of the critical realization in the paper,so that code can be applied into other program and be transplanted expediently.