便携式温湿度舒适性测试仪研究

Research of portable temperature and humidity comfort tester

为了解列车运行时客室内温湿度的动态变化以及该变化对乘客舒适性的影响,研究设计一种便携式温湿度舒适性实时测试系统。通过在高速列车实测温湿度数据和乘客调查问卷的统计分析基础上,给出适用于我国高速列车的温湿度舒适性评价指标。系统以STM32系列处理器和数字式温湿度传感器SHT21为核心,采用模块化设计,由电源模板、温湿度测量模块、存储模块和LCD显示模块组成。实验表明该系统可满足高速列车客室内温湿度动态变化及乘客温湿度舒适性的测试要求。

In order to know the dynamic change of the temperature and humidity in the passenger compartment when the train running and the impact of the change on passenger comfort, a portable real-time temperature and humidity comfort test system was designed. A comfort evaluation index of temperature and humidity which is suitable for our country＇s high-speed train was given by measuring temperature and humidity data and statistical analysis of passenger questionnaire. The system is designed with STM32 processor and digital temperature and humidity sensor SHT21 as the core. It adopts modularizing design including power supply module, temperature and humidity measurement module, storage module and LCD display module. Experimental results show that the system can satisfy the test requirements both in dynamic change of temperature and humidity, and the comfort test of passengers in the high-speed train compartment.