摘 要
随着工业自动化和信息化的快速发展，将可编程逻辑控制器（PLC）与物联网技术相结合成为实现远程监控的有效途径。本研究旨在探索PLC与物联网融合下的远程监控技术，以提高工业生产过程中的管理效率和安全性。通过构建基于PLC与物联网的远程监控系统架构，采用ZigBee无线传感网络采集现场数据，并利用MQTT协议传输至云端服务器，再经由Web端或移动端进行可视化展示与控制操作。该系统不仅实现了对生产设备运行状态的实时监测，还能够根据预设条件自动调整设备参数，确保生产流程稳定可靠。创新之处在于引入边缘计算节点作为中间层，有效减轻了主站负担并提高了响应速度；同时开发了一套适用于PLC与物联网集成环境下的故障诊断算法，可在异常情况发生时迅速定位问题根源并给出解决方案。实验结果表明，此方案在降低维护成本、提升工作效率方面具有显著优势，为现代制造业向智能化转型提供了新的思路和技术支持。此外，通过对实际应用场景的测试验证了系统的可行性与稳定性，证明其能够在复杂多变的工业环境中保持高效运作，为未来进一步拓展应用范围奠定了坚实基础。
关键词：可编程逻辑控制器 物联网 远程监控系统
Abstract
With the rapid development of industrial automation and informatization, integrating Programmable Logic Controllers (PLC) with Internet of Things (IoT) technology has become an effective approach for remote monitoring. This study aims to explore remote monitoring technologies in the context of PLC and IoT integration to enhance management efficiency and safety in industrial production processes. By constructing a remote monitoring system architecture based on PLC and IoT, this research employs a ZigBee wireless sensor network for on-site data collection and utilizes the MQTT protocol to transmit data to cloud servers, followed by visualization and control operations via web or mobile interfaces. The system not only achieves real-time monitoring of equipment operation status but also automatically adjusts equipment parameters according to preset conditions, ensuring stable and reliable production processes. An innovation of this system is the introduction of edge computing nodes as an intermediate layer, which effectively reduces the burden on the main station and improves response speed. Additionally, a fault diagnosis algorithm tailored for the integrated environment of PLC and IoT has been developed, enabling rapid identification of problem origins and provision of solutions during anomalies. Experimental results demonstrate that this solution offers significant advantages in reducing maintenance costs and improving work efficiency, providing new insights and technical support for the intelligent transformation of modern manufacturing. Furthermore, tests in real-world application scenarios have verified the feasibility and stability of the system, proving its capability to maintain efficient operations in complex and dynamic industrial environments, thus laying a solid foundation for future expansion of application scopes.
Keyword:Programmable Logic Controller Internet Of Things Remote Monitoring System
目 录
引言 1
1PLC与物联网结合的背景与意义 1
1.2物联网技术特点分析 1
1.3结合的必要性探讨 2
2PLC与物联网结合的关键技术 2
2.1数据通信协议研究 2
2.2网络架构设计原则 3
2.3安全机制构建方法 3
3远程监控系统的实现方案 4
3.1系统硬件选型依据 4
3.2软件平台搭建思路 5
3.3功能模块划分原则 5
4应用案例及效果评估 6
4.1工业场景应用实例 6
4.2农业领域实施情况 6
4.3经济效益与社会效益 7
结论 7
参考文献 9
致谢 10
