住宅燃气表智能化抄表系统的总体设计

摘要

针对人工抄表和IC卡预付费方式在燃气表抄表过程中存在的问题,提出基于复合通信网络的燃气表智能化抄表系统.在该系统设计中,首先建立包含燃气表、采集器、集中器、主站和通信信道的系统结构模块;然后选取RS-485总线通信、Si4432型号的RF芯片和GPRS网络构成复合通信网络作为系统通信信道的底层通信、中间层通信和上层通信;最后对系统的采集器、集中器和主控制器分别进行设计,以实现智能化抄表系统的总体设计.%Through the analyses of problems in gas meter reading by using manual meter reading or gas sale by IC card prepayment model,an intelligent meter reading system based on the composite communication network is presented to achieve a safe and more efficient task of gas meter reading.This system consists of five modules which are intelligent gas meter,data collector,concentrator,master station and communication channel,and the composite communication network includes RS-485 for bottom communication,Si4432 model of RF chip for mid-level communication and GPRS network for upper-layer communication.In the process of gas meter intelligent reading system,data collector,concentrator and master controller are designed respectively.