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昆明冶金高等专科学校学报 ›› 2022, Vol. 38 ›› Issue (4): 50-.DOI: 10.3969/j.issn.1009-0479.2022.04.008

• 机械设计制造与自动化技术 • 上一篇    下一篇

基于单片机的 M-BUS 协议适配器电路设计

李自红
  

  1. (云南工商学院智能科学与工程学院,云南 昆明651701)
  • 收稿日期:2022-02-10 出版日期:2022-08-30 发布日期:2023-11-29
  • 作者简介:李自红 (1971-),男 (彝族),云南昆明人,仪表工程师,工学学士,主要从事电气工程研究。

Circuit Design of M-BUS Protocol Adapter Based on MCU

LI Zihong   

  1. ( College of Intelligent Science and Enginering, Yunnan Technology and Business University, Kunming 651701 , China)
  • Received:2022-02-10 Online:2022-08-30 Published:2023-11-29

摘要:  针对智能低功耗直读水表为主的集中抄表系统,设计一种基于 STC12C1052 单片机控制的分立元件 MBUS 适配器,完成对连接到 M-BUS 总线上智能表数据的收发并通过集中器上传到监控计算机,从而实现远程抄表。介绍 M-BUS 总线及适配器的工作原理,详细阐述在单片机控制下的 M-BUS 总线信号收发电路,过流及短路保护,故障检测及故障信号发送,远程唤醒及其在远程抄表中的应用。由于采用分立元件设计,不受知识产权限制,大大增加了M-BUS 接收电路的运用。

关键词: M-BUS 仪表总线, 协议适配器, 绿色化

Abstract:  Aiming at the centralized meter reading system based on intelligent low-power direct reading water meter, a discrete component M-BUS adapter based on STC12C1052 microcontroller is designed to com:plete the data sending and receiving of the intelligent meter connected to M-BUS and upload the data to themonitoring computer through the concentrator, so as to realize remote meter reading. This paper introducesthe working principle of the M-BUS and the adaptor, and expounds in detail the M-BUS signal transceivercircuit, over current and short circuit protection, fault detection and fault signal transmission, remote wakeup and its application in remote meter reading. As the discrete components design is not limited by intellectual property rights, the circuit designed greatly increased the use of M-BUS receiving circuit.

Key words: M-BUS instrument bus: protocol adapter, greenization

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