中文摘要：

针对CO2质量浓度在气候变化、社会经济等方面的重要影响，本文采用非发散性红外传感器，结合无线数据传输技术和现场采样技术，设计了一种在线式CO2质量浓度现场监测系统，并采用该系统对不同环境及不同时间段空气中的CO2质量浓度进行现场连续监测。监测结果表明，一天当中，CO2质量浓度的波动很明显，最高值746mg／m^3，最低值671．68mg／m^3。该系统测量数据准确，稳定可靠，达到了各项技术要求，可以广泛应用于大气及室内环境的CO2质量浓度监测，具有较高的实用价值。

英文摘要：

Since the concentration of CO2 produces a very important effect on the climate change and the economic development, a wireless monitoring module for CO2 is designed. The module combining the nondispersive infrared sensor with the wireless transmission and on-site monitoring techniques, is composed of a central processing unit, a CO2 sensor, a data storage unit, an air renewal system and a wireless transmission unit. The experimental results show that the concentration of CO2 varied obviously during the day, from the maximum value 746 mg/ma to the minimum value 671.68 mg/m3. The designed module has been proven to be reliable and accurate. It meets all of the technical requirements to be an environmental monitoring nod in the wireless network.