用Firebase实现低成本实时环境监测与远程控制。
Cloud-Enabled IoT System for Real-Time Environmental Monitoring and Remote Device Control Using Firebase
- ESP32连接温湿度与超声传感器，数据实时上传Firebase。
- 99.2%数据传输成功率，远程控制延迟低于1.5秒。
- 无需复杂服务器，适合初学者和资源有限的开发者。
物联网设备的普及为远程监控与控制应用带来了前所未有的机遇。传统系统在实时数据访问、远程可控性和云集成方面存在局限。本文提出一种基于Google Firebase实时数据库的云启物联网系统，利用ESP32微控制器连接DHT22温湿度传感器和HC-SR04超声波距离传感器，并通过云端界面远程控制两个LED指示灯。传感器数据实时上传至Firebase，实现多设备同步访问。实验表明，系统数据传输成功率高达99.2%，远程控制延迟低于1.5秒，支持历史数据分析的持久化存储。该架构具有可扩展性，适用于智能家居自动化到工业监控等多种场景，总部署成本仅32.50美元。Firebase的集成无需复杂后端，使资源有限的开发者和研究人员也能便捷构建高级物联网应用。
原文摘要 · Abstract (English)
The proliferation of Internet of Things (IoT) devices has created unprecedented opportunities for remote monitoring and control applications across various domains. Traditional monitoring systems often suffer from limitations in real-time data accessibility, remote controllability, and cloud integration. This paper presents a cloud-enabled IoT system that leverages Google's Firebase Realtime Database for synchronized environmental monitoring and device control. The system utilizes an ESP32 microcontroller to interface with a DHT22 temperature/humidity sensor and an HC-SR04 ultrasonic distance sensor, while enabling remote control of two LED indicators through a cloud-based interface. Real-time sensor data is transmitted to Firebase, providing a synchronized platform accessible from multiple devices simultaneously. Experimental results demonstrate reliable data transmission with 99.2\% success rate, real-time control latency under 1.5 seconds, and persistent data storage for historical analysis. The system architecture offers a scalable framework for various IoT applications, from smart home automation to industrial monitoring, with a total implementation cost of \$32.50. The integration of Firebase provides robust cloud capabilities without requiring complex server infrastructure, making advanced IoT applications accessible to developers and researchers with limited resources.
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