一种新型远程抄表系统的集中抄表器设计及通信协议研究

Study on remote reading meter's protocol of a new kind and design of the concentrated reading meter system

针对目前出现的一种新型户用计量仪表——基于RS485/CAN总线构成的双层网络抄表系统的集中抄表器给出了硬件设计原理图,在TI微处理器MSP430F449硬件平台上,根据远程抄表系统的通信特点设计了集中抄表器和用户信息采集器以及集中抄表器与管理中心计算机之间的通信协议,进行了软件设计,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测试,测试表明所设计的系统运行平稳、成本低廉,能够可靠地完成抄表系统通信需求,达到了设计要求。

Aiming at the problems of existing later in the remote concentrated reading meter, which is double-layer network of remote concentrated reading meter system based on RS-485 and CAN field bus is designed in this paper. 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, low-cost, which has reached the demand of the design.