【摘要】 针对基于RS485总线的远程抄表技术通信过程中的数据的可靠性低等问题,提出了一种握手联络式串口通信协议,这种握手联络式通信协议大大提高了通信过程中的数据可靠性,并且根据远程抄表系统的通信特点设计了集中控制器和用户信息采集器之间的通信协议,画出了它们的软件实现框图.最后,在实验条件下对所设计的系统进行了反复测试,测试表明系统运行平稳,这种握手联络式串口通信效果良好,通信的可靠性得到了大大提高,能够可靠地完成抄表系统通信需求,达到了设计要求。更多还原

【Abstract】 Aiming at the problems of low stability in the RS485-based remote concentrated reading meter,a handshaking serial communication protocol is introduced.The handshaking serial communication protocol is more reliable than the old one.According to the character of remote reading meter’s protocol,the remote reading meter system software among the user measure meter,the concentrated reading meter system and the center management computer is designed based on TI micro-processor MSP430F449 hardware platform.The practical test shows that this system has the characters of high stability,which has reached the desire of the design.更多还原