基于无线传感器和视频融合的室内定位技术研究  

Research of indoor location technology based on wireless sensors and video

作　　者：杜海涛[1] 全春来[1] 周翔[1] 

机构地区：[1]中国航天科工集团第二研究院长峰科技工业集团公司,北京100854

出　　处：《计算机工程与设计》2011年第1期347-350,共4页Computer Engineering and Design

摘　　要：为了提高室内定位跟踪精度和扩大定位跟踪范围,建立了一种无线传感器和视频融合定位跟踪模型。该模型通过分析无线传感器和视频传感器定位特点,确定了基于粒子滤波的融合定位策略,提高视频目标检测能力,补偿无线传感器的定位精度和盲区。提出了基于无线传感器和视频观测模型的粒子权重评估方法,提高了粒子更新效率。结合实例对模型和算法进行了仿真分析,结果表明了模型的可行性和算法的有效性。To increase the indoor location tracking accuracy and extend the location area,the fusion model for location tracking based on wireless sensors and video is constructed.By analyzing the location characteristic of wireless sensors and video,fusion location strategy based on particle filer is defined,which improve the capacity of video detection targets and compensate the location accuracy and blind area of wireless sensors.Methods of evaluating importance weights of particles based on wireless sensors and video observation model is put forward,which improve the efficiency of particle updating.Simulation analysis demonstrated the feasibility of the model and the effectiveness of the algorithm.

关 键 词：室内定位 无线传感器定位 视频定位 数据融合 粒子滤波 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]