结合主客观权重的交通检测器选取方法

将检测精度、可测信息的维度、环境适应性、对外界的干扰度和相对经济性作为评价检测器优劣的指标,定义了各个指标的具体计算公式,运用AHP和熵权法来分别确定指标的主观权重和客观权重,在综合主客观权重的情况下运用模糊综合评价方法对检测器进行打分,最终实现检测器的定量选取。并运用所提出的方法进行了实例分析。分析结果表明,所提出的方法能根据主体的不同需要较好地实现检测器的最优选择,选择结果与实际情况吻合。

A method combining subj ective weight and obj ective weight for choosing traffic detector

The maj or factors affecting traffic detector selection were analyzed by choosing detection precision,detection dimensions,environmental suitability,interference degree and economical efficiency as the evaluation indices.These indices can reflect the merits of the detector and are measured by the proposed formulae.Two methods-AHP and entropy weight method are proposed to measure subj ective weight and obj ective weight respectively.The traffic detectors are evaluated by using the fuzzy comprehensive evaluation combined subj ec-tive weight and obj ective weight,achieving the quantitative choice amonst the traffic detec-tors.Using the proposed method,a case is finally anaylsed.The analysis result shows that the proposed method can choose the optimum detector according to the different needs of the subj ect and the section result agrees with the actual situation.