金立艳 齐永宏 赵明辉 韦学勇

摘要：为满足气密空间内环境信息实时监测与存储的需求，该文设计一款基于 STM32的多环境参数监测系统。该系统具有实时数据采集、数据存储、历史数据查询及报警阈值等功能。其中报警阈值功能可有效保证系统及时提供报警信息，方便监测气密空间内环境。系统由参数采集模块与人机交互模块构成，模块之间通过 RS232接口实现参数设定、实时数据显示及历史数据查询显示功能。试验结果表明该环境监测仪在12 h 内与标准传感器对气密空间内环境信息的采集数据呈现良好的一致性，其数值波动皆处于设置的阈值以内。该文设计的环境监测系统对气密空间内环境监测具有良好的实用性和可靠性，具有广阔的应用前景。

关键词： STM32控制器;气密空间;环境监测;人机交互

中图分类号： TP274文献标志码： A文章编号：1674–5124（2021）12–0131–05

Multi-environmental information intelligent monitoring system for airtight space

JIN Liyan1，QI Yonghong2，ZHAO Minghui2，WEI Xueyong2

（1. Nanjing Vocational Institute of Transport Technology， Nanjing 211188， China;2. School of MechanicalEngineering， Xian Jiaotong University， Xian 710049， China）

Abstract： To meet the requirements of real-time collection and storage of environmental information in airtight spaces， this paper designs a multi-environment parameter monitoring system based on the STM32 controller. The system has the functions of real-time collection and storage of information， historical information query， and alarm threshold. The alarm threshold function can effectively ensure that the system provides timely alarm information to facilitate the monitor of the environment in the airtight space. The system is composed of an acquisition module and a human-computer interaction module. The modules communicate through the RS232 interfacetoachieveparametersetting，real-timedatadisplay，andhistoricalquerydisplayfunctions. The experiment suggests that the environmental monitoring instrument has a good consistency with the standard sensor in thecollectionof environmental information in theairtightspace within 12 h，and its numerical fluctuationsarewithinthesetthreshold. Theenvironmentalmonitordesignedinthispaperhasgood practicability and reliability for environmental monitoring in airtight spaces and has a wide range of application prospects.

Keywords： STM32 controller; airtight space; environmental monitoring; human-computer interaction

0引言

稳定的密闭环境是保障众多产品测试顺利进行的重要实验基础。实验过程中，内部环境往往会受外部环境和仪器自身气密性的影响，从而使内部环境与预期实验条件不符。当环境误差超过预定阈值时就会对试验产品的性能及实验结果产生不容忽视的影响。

通常，温湿度、颗粒物浓度、大气压强、氧气浓度等是气密实验空间内的重要环境信息，对以上信息进行精准、实时监测对稳定实验环境，确保测试结果的准确性具有重要意义[1-3]。鉴于环境质量监测的重要性，研究者设计了多种类型的环境检测仪对空间环境信息进行监测。……