中文摘要：

为了提高CO浓度检测精度，提出一种反向学习机制粒子群算法（OBLPSO）优化最小二乘支持向量机（LSSVM）的CO浓度检测模型（OBLPSO-LSSVM）。构建CO浓度检测的学习样本，输入到LSSVM中训练，通过引入反向学习机制的粒子群算法找到LSSVM的最优参数建立CO浓度检测模型，在Matlab2012平台对模型性能进行仿真测试。结果表明，OBLPSO．LSSVM可以精确描述CO检测系统的输入与输出间的非线性变化关系，提高了CO浓度检测精度，具有一定的实际应用价值。

英文摘要：

In order to improve the detection accuracy of CO concentration, this paper proposes a CO concentration cletectaon model based OppositionBased Learning Particle Swarm Optimization algorithm and Least Squares Support Vector Machine （OBLPSOLSSVM）. The samples of CO concentration detection are composed, and then the samples are input to LSSVM to train, and the optimal parameters of LSSVM are obtained by Particle Swarm Optimization algorithm in which oppositionbased learning mechanism is introduced and the CO concentration detection model is established. The simulation experiment is carried out to test the performance of model in MATLAB 2012. The results show that the proposed model can describe the nonlinear rela tionship between the input and output of CO detection system and has improved the detection accuracy of CO concentration, and it has good practical application value.