基于ARM9一Linux的嵌入式电子鼻系统的实现

研制了一种以ARM9为控制芯片，搭载Linux的电子鼻系统。系统硬件由自动进气装置、密闭气室、传感器阵列、数据采集模块构成。控制软件界面采用QT编写，完成了嵌入式终端软件和上位机软件。该系统能够实现对气体进行自动进气、数据采样、数据保存，采样曲线实时显示监控等功能。并能利用MATLAB编写的电子鼻气味识别分析软件对数据进行分类识别算法分析，达到智能识别不同气味的目的。实验证明，此嵌入式电子鼻系统体积小、携带方便、稳定度高、成本低，能够实现对多种不同的气味进行准确识别。

Implementation of Embedded Electronic Nose System Based on ARM9-Linux

An electronic nose system is developed. The system uses ARM9 for control chip, carrying the Linux operating system. The hardware of the systerm consists of autmatic air intake system module, gas chamber module, sensor array module, data acquisition and data preservation module. The embedded terminal software and PC software use the QT program. The system can realize the functions of auto- matic air intake,gas data sampling and real-time monitor. Use the electronic nose smell recognition analysis software by MATLAB to sort the data recognition algorithm analysis to achieve the purpose of intelligent identification different smell. Experiments show that the em- bedded electronic nose system with small size, easy to carry, high stability, low cost is able to accurately identify a variety of different smell.