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Received:December 31, 2010 Revised:January 25, 2011
Received:December 31, 2010 Revised:January 25, 2011
中文摘要: 为解决国内称重设备的自动化程度不高,管理难度大等问题,设计了一套称重系统.在这套称重系统中,下位机为AT89S51单片机,运用了RS485总线传输压力信号来实现主从多机串口通信.上位机为PC机,将接收到的数据通过TCP/IP网络协议传输至中央服务器.为保证数据传输的安全性,采用了DES算法对数据进行加密解密.最后以MyEclipse6.5为开发环境,使用Java语言开发了一个C/S模式的称重信息管理系统.
Abstract:In order to solve the problems that the domestic weighing equipment is low in automation and difficult to manage, a set of weighing systems is designed. In this weighing system, the lower machine, being AT89S51, uses the RS485 bus transmission pressure signal to realize primaryslaver multi-computer communication. The upper machine, being PC, uses the TCP/IP Network Protocol to transmit the received data to central server. To guarantee the safety of data transmission, it adopts DES algorithm to encrypt and decrypt the data. Finally, in the development environment of MyEclipse6.5, it develops a weighing information management system with Java language based on C/S mode.
keywords: RS485 bus TCP/IP Network distributed multithread
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李秉荣,刘夫云,鲁倪亚.基于RS485和TCP/IP网络的分布式称重系统.计算机系统应用,2011,20(9):35-38
LI Bing-Rong,LIU Fu-Yun,LU Ni-Ya.Distributed Weighing System Based on RS485 Bus and TCP/IP Network.COMPUTER SYSTEMS APPLICATIONS,2011,20(9):35-38
李秉荣,刘夫云,鲁倪亚.基于RS485和TCP/IP网络的分布式称重系统.计算机系统应用,2011,20(9):35-38
LI Bing-Rong,LIU Fu-Yun,LU Ni-Ya.Distributed Weighing System Based on RS485 Bus and TCP/IP Network.COMPUTER SYSTEMS APPLICATIONS,2011,20(9):35-38
