Miao Xianglin,Chen Kai,Wang Junmin,Miao Yalin,Sun Chao
(School of Electronics and Information Engineering,Xi'an Jiaotong University,Xi'an 710049,China)
Abstract:Aiming at the common info-island problems existing in heterogeneous computer networks in some enterprises and after analyzing the ASN1 standard and some key techniques when accessing database,a data share scheme of unidirectional data broadcasting was put forward based on the ASN1.Moreover,the scheme consisted of the server end and the client end.The responsibility of the server end is to access the database,receive the data timing according to XML configuration files,and meanwhile providing one advanced interface to access database.The communication between the server and the client adopts ASN1 coding standard and the UDP £¨user datagram protocal£© transmission protocol.And the UDP protocol only responds to data transmission through the network from the reply end.The data originating from the request end is done manually.This novel method solves the data accessing problems in heterogeneous computer networks and has the advantages of simple,safe,easy-to-use and low-cost.So it would have a promising prospect for future applications£®
Keywords:isomer;information island;basic encoding rule;unidirection broadcast