基于MBUS的智能集中器设计

The design of intelligent concentrator based on MBUS

针对以智能水表和热量表为主的集中抄表系统,设计了一种MBUS集中器,它完成对连接到MBUS总线上的智能表数据的抄收并通过GPRS上传到监控计算机。介绍了集中器的工作原理及MBUS总线,详细阐述了MBUS总线信号的收发电路。由于采用单片机控制,不断调整比较器基准电压,大大增加了MBUS接收电路的适应性。测试结果表明,该设计实现的集中器产品可靠性高、带负载能力强、抄表效率高,在实际应用中取得了很好的效果。

Aimming at centralized meter reading system focused around the intelligent water meter and heat meter,a kind of MBUS concentrator is designed.The MBUS concentrator can complete the collecting of the intelligent meter data that connects to the MBUS bus and the uploading to the monitoring computer via GPRS.In the paper the working principle of the concentrator and MBUS bus are introduced,and the transceiver circuits of the MBUS bus signals are described in detail.Because of the use of the single-chip control,the bus voltage can be detected real-time,the reference voltage of the comparator can be adjusted constantly,so the adaptability of the MBUS receiving circuit increases greatly.The test results show that the concentrator that has been realized has high reliability,strong load ability and high reading efficiency.And it has achieved very good effects in the practical application.