Quasi-synchronous master-slave remote education information management system and its implementation method

Abstract

The invention relates to the areas of internet technique and satellite broadcast technique. It is composed of master station, multi passive station, and communication unit used to connect the master station and the passive station. The master station is a computer having an integrated system, background database and firewall. The integrated system provides editing and sending functions of networking school. The passive station consists of multi computers connected each other through local area network. One of the said computer is as a server connected to communication unit. The management information system and database of the passive station, and firewall is installed on the server station. Other passive stations connected to the server of passive stations through local area network of passive stations provides for logging user to use the courseware resources from database of the passive stations. The information resources is transmitted and managed with quasi-synchronous, master-slave style. The invention makes larner living in area where the switch in condition of Internet is poor being able to study through local area network. Thus one side, more students can share the education resources provided through Internet, on the other hand, the provider of the resources realizes effective centralizing management.

Description

technical field [0001] The invention belongs to the field of Internet technology and satellite broadcasting technology, and particularly relates to distance education and various master-slave database system technologies. Background technique [0002] In distance education, Internet technology and satellite broadcasting technology are widely used. [0003] (1) Internet: The educational resource provider 11 maintains local educational resources and provides network services externally, so that users (1, 2...n) who need such resources can browse or download educational resources by establishing a network (internet) connection ,Such as figure 1 shown. [0004] Using the Internet transmission method, the educational resource provider maintains the local educational resources, which has the advantages of simple maintenance and easy updating. For specific users who access directly through the Internet, they can obtain updated information in real time. But for the sender, it mus...

AI Technical Summary

Problems solved by technology

[0009] However, satellite broadcasting has high requirements on the receiving end, and requires the installation of satellite antennas and receiving cards, and the cost of use is relatively expensive, which is not very suitable for most stand-alone users at present.

[0010] As for the situation where the receiving end of the satellite broadcasting is mirrored, since the current satellite broadcasting is mostly one-way broadcasting, information feedback and return cannot be carried out, so the mirroring site at the receiving end of the satellite usually adopts the form of on-site management of information resources, which is not convenient for satellite broadcasting. The resource provider conducts centralized and unified management of the receiver

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