基于Zigbee技术的CO_2浓度在线监测仪设计  

Design of online monitor for CO_2 concentration based on Zigbee technology

作　　者：孙小婷 魏识广[1] 曾敏[1] 

机构地区：[1]桂林电子科技大学生命与环境科学学院,广西桂林541004

出　　处：《实验技术与管理》2018年第1期85-91,共7页Experimental Technology and Management

基　　金：国家自然科学基金项目(31460155)

摘　　要：利用非分光红外(NDIR)原理以及无线传感技术(Zigbee网络)设计了基于NDIR原理的CO_2浓度在线监测系统,实现对CO_2浓度的监测。通过对不同浓度的CO_2气体进行多次重复测量结果表明,相对误差集中在-2.48%~4.10%之间,标准偏差范围为2.416%~4.149%,对相同浓度的CO_2进行测量时得到的结果变化范围大都能控制在4.33%~5.89%的范围内,系统处于稳定状态时平均响应时间在7s内。系统的精度、误差以及稳定性均达到设计要求。By using the NDIR(non-dispersive infrared)principle and wireless sensor technology(Zigbee network),the online monitoring system for the CO_2 concentration based on the NDIR principle is designed,and the monitoring of the CO_2 concentration is realized.The results from the repeated measurements of CO_2 gas with different concentrations show that the relative error is mainly between-2.48% and 4.10%,the standard deviation is from 2.416%to 4.149%,the changing range of results obtained from measuring the same concentration of CO_2 can be controlled within the range from 4.33%to 5.89%,and the average response time is within seven seconds when the system is in steady state.The accuracy,error and stability of the system are all up to the design requirements.

关 键 词：二氧化碳监测仪 非分光红外原理 ZIGBEE网络 CC2530主控芯片 

分 类 号：O659.32[理学—分析化学]