基于LoRa的远程自动抄表系统研究与实现

Research and Implementation of Remote Automatic Meter Reading System Based on LoRa

摘要:

针对目前人工抄表繁琐且费时费力的行业痛点,提出了一种基于LoRa的远程自动抄表系统的设计方案。方案以LoRa扩频通信为基础,采用LoRa与以太网通信相结合的方式,网络拓扑上采用扩展的星型组网,引入TDMA机制以保障数据传输的成功率。介绍了系统架构、网络拓扑、系统的软硬件平台、自定义LoRa的MAC子层以及各节点的工作流程,实现了对水、电、燃气及热力表的远程自动抄表管理。最后对系统进行测试,通过分析测试结果表明该系统方案具有覆盖范围广、数据传输成功率高、组网快速、维护简单等特点,具有广泛的应用前景。

Abstract:

Aiming at the pain point of the manual meter reading which is cumbersome and time-consuming, this paper proposes a design scheme of the remote automatic meter reading system based on LoRa. Based on LoRa spread spectrum communication, the scheme adopts a combination of LoRa and Ethernet communication. An expanded star network is adopted in the network topology, and a TDMA mechanism is introduced to ensure the success rate of data transmission. This scheme introduces the system architecture, the network topology, the software and hardware platform of systems, self-defined LoRa MAC sublayer and workflow of each node. It realizes remote automatic meter reading management of water, electricity, gas and thermometers. Finally, the system is tested, and the test results show that the system has the advantages of wide coverage, high success rate of data transmission, fast networking and simple maintenance. It has a wide range of applications.