分析化学2026，Vol.54Issue(9)：1548-1556,中插12-中插20,18.DOI:10.19756/j.issn.0253-3820.261273
基于多节点传感器阵列的气味溯源监测系统研究
Design and Implementation of An Odor Traceability Monitoring System Based on Multi-Node Sensor Array
摘要
Abstract
Hazardous gas leakage at the boundaries of industrial plants and parks constitutes a critical hazard that triggers safety accidents and environmental pollution.Conventional single-point detection instruments,characterized by limited coverage and insufficient real-time performance,can hardly meet the practical requirements for rapid source tracing of pollution sources.In this study,an odor tracing and monitoring instrument system based on a multi-node sensor array was designed and developed for monitoring oxygen,carbon monoxide,combustible gas and total volatile organic compounds(TVOC).The system adopted a layered hardware architecture of "bottom-layer real-time control+upper-layer data processing":an STM32F103RCT6 microcontroller served as the core processor to complete multi-channel sensor data polling for S4-OXV(oxygen sensor),S4-CO(carbon monoxide sensor),SLP22A(combustible gas sensor),and S4-VOC(total volatile organic compound sensor),as well as temperature and humidity acquisition via a DHT11 sensor,while a Raspberry Pi 4B was responsible for interface display and algorithm processing.The system integrated an incremental PID closed-loop temperature control module to stabilize the temperature of the sensor gas chamber at the target value of 25 ℃,with a steady-state error of less than±0.2℃.A multi-node wireless network was constructed based on Tailscale,with an average round-trip data delay between nodes of approximately 45 ms and a packet loss rate of less than 0.5％over 24 consecutive hours of continuous operation.To address the issue of pollution source localization,a grid-based iterative tracing algorithm based on a distance attenuation model was proposed,achieving a positioning error of only approximately 2.12 m in simulations.With clear structure and complete functions,the proposed system provided a feasible engineering solution for odor monitoring and pollution source tracing in industrial parks and their boundary areas.关键词
电化学传感器/气体传感器阵列/气味溯源/嵌入式系统/环境监测Key words
Electrochemical sensors/Gas sensor array/Odor traceability/Embedded system/Environmental monitoring引用本文复制引用
吕晨菲,胡文博,刘欣彤,马哲,徐琳..基于多节点传感器阵列的气味溯源监测系统研究[J].分析化学,2026,54(9):1548-1556,中插12-中插20,18.基金项目
国家重点研发计划项目(No.2025YFC3510300)、国家自然科学基金项目(Nos.62474078,62501251)、吉林省自然科学基金项目(No.20230203052SF)、中国博士后科学基金项目(No.2024T170324)和山东省自然科学基金项目(No.ZR2024MF026)资助. Supported by the National Key Research and Development Program of China(No.2025YFC3510300),the National Natural Science Foundation of China(Nos.62474078,62501251),the Jilin Province Natural Science Foundation of China(No.20230203052SF),the China Postdoctoral Science Foundation(No.2024T170324)and the Shandong Provincial Natural Science Foundation(No.ZR2024MF026). （No.2025YFC3510300）
