【作者】 李力； 张婧； 方立新；

【Author】 Li Li;Zhang Jing;Fang Lixin;School of Architecture,Southeast University;AICO (Shanghai) Architectural Design Co.,Ltd;

【机构】 东南大学建筑学院； 爱坤(上海)建筑设计有限公司；

【摘要】 城市及室内尺度的环境行为研究已有基于手机信令及超宽带技术的,满足其精度及规模要求的数字化数据采集手段。而街区研究的尺度介于城市和室内之间,相比城市研究需要更高的精度,相比室内需要更复杂的观测范围及监测对象。前两种观测方式很难同时满足精度和规模要求。目前较为可行的途径是通过嗅探移动设备的WiFi信号获取大量数据来进行定位研究。但由于噪声及隐私保护机制,探针信号需要进行复杂的处理转移以后才能提供有效信息。针对上述问题,本研究开发了一种集成WiFi嗅探、移动网络、云端服务器的WiFi定位及分析系统。该系统的设备独立性高,侵入性低,大大降低了系统布设及维护的限制和难度。同时,针对WiFi探针的数据精度问题,根据不同的应用场景及目标需求,提出相应的采集策略及数据清洗和分析方法,从而获帮助研究人员获取有参考意义的环境行为数据分析结果。该系统在商业街区及乡村环境都进行了应用实验,取得了初步的成果。更多还原

【Abstract】 There are digital data acquisition methods based on cell phone signaling and ultra-wideband technology to meet the requirements of accuracy and scale for environmental behavior research at urban and indoor scales.The scale of block research is between block and indoor research.Compared with urban research,block research needs higher accuracy;compared with indoor research,it needs larger and more complex observation range and monitoring objects.The first two observation methods are difficult to meet the requirements of accuracy and scale at the same time.At present,a more feasible way is to sniff the WiFi signal of mobile devices to obtain a large amount of data for positioning research.However,due to noise and privacy protection mechanisms,the probe signal needs to be processed in a complex way before it can provide effective information.In view of the above problems,this study developed a WiFi location and analysis system integrates WiFi sniffing,mobile network and cloud server.The system has high equipment independence and low invasiveness.Therefore,the limitation and difficulty of system layout and maintenance are greatly reduced.At the same time,aiming at the data accuracy of WiFi probe,according to different application scenarios and target requirements,the corresponding acquisition strategy and data cleaning and analysis methods are proposed to help researchers obtain meaningful environmental behavior data analysis results.The system has been applied in commercial districts and rural environments,and preliminary results have been achieved.更多还原