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引用次数: 0
摘要
本研究通过引入分布式嵌入系统(DES)来应对城市空气质量恶化这一长期挑战。针对传统空气质量测量方法的局限性,DES 系统为实时监测提供了一种具有成本效益的便携式替代方法。这项研究的重点是实施低成本的分布式系统,并开发传感器节点之间的有效通信协议。该系统配备了污染气体金属氧化物半导体(MOS)传感器、颗粒物光学传感器和气象传感器,在城区 4 公里范围内战略性地部署了多个节点。对不同地点的实时空气质量指数和污染严重程度进行了测量。长距离(LoRa)通信技术的应用使传感器节点能够高效地向中央基站传输数据。对接收信号强度和信号质量的观察表明,通信是可靠和有效的。为了验证准确性和可靠性,获取的 DES 系统数据与政府建立的气象站数据进行了对比分析,结果显示两者之间具有很强的相关性。这种创新方法为城市地区广泛、连续和经济高效的实时空气质量监测提供了一种前景广阔的解决方案。DES 系统解决了与空气污染相关的主要挑战,提供了一种便携、易用的工具,可彻底改变城市空气质量管理。
Distributed Embedded System for Air Quality Monitoring based on Long Range (LoRa) Technology
This study addresses the persistent challenge of urban air quality deterioration through the introduction of the Distributed Embedded System (DES). In response to limitations associated with conventional air quality measurement methods, the DES system offers a cost-effective and portable alternative for real-time monitoring. The study focuses on implementing a low-cost distributed system and developing effective communication protocols between sensor nodes. Equipped with Metal Oxide Semiconductor (MOS) sensors for pollutant gases, optical sensors for particulate matter, and meteorological sensors, the system strategically deploys multiple nodes within a 4 km range of urban areas. Real-time AQI and pollution severity have been measured for various locations. Implementation of Long Range (LoRa) communication technology allows the sensor nodes to efficiently transmit data to a central base station. Observations of received signal strength and signal quality indicate reliable and effective communication. To validate accuracy and reliability, acquired DES system data undergoes comparative analysis with data from a government-established meteorological station, revealing a strong correlation. This innovative approach presents a promising solution for widespread, continuous, and cost-effective real-time air quality monitoring in urban areas. The DES system addresses key challenges associated with air pollution, offering a portable and accessible tool that could revolutionize urban air quality management.