报税嵌入系统接入互联网方法的研究

Research of Accessing to Internet Embeded -system for Declaration

针对嵌入式系统在接入互联网时需要占用大量的系统资源以及速度慢等问题,依据TCP/IP协议理论模型,采用AT89C51单片机作为微处理器,专用芯片E5112作为TCP/IP协议的执行部件,构建了嵌入式系统接入互联网的快速接入平台.实验证明,该平台不仅性能稳定而且为嵌入式系统接入互联网提供了一条快捷的方式,非常适用于由嵌入式系统构成的通信网络.

According to TCP/IP protocols, the article presents a kind of system which is composed of AT89C51 singlechip as its microprocessor and special chip E5112 as the device which can carry out TCP/IP protocols,in order to solve the problem that the embedded system takes up lots of limited resources of the system and costs much time.when the embedded system accesses to internet. The system not only operates well but well provide a smart method by which the embedded system can easily access to internet, so the method is suitable for communication net which consists of many of embedded systems.