西单商圈示范区Wi-Fi指纹数据（2021年）

西单商圈示范区Wi-Fi指纹数据覆盖北京西单大悦城、老佛爷百货、君太百货，室内面积共363200平方米。Wi-Fi指纹数据包括指纹点坐标信息、Wi-Fi列表信息（MAC地址、信号强度）及时间戳。Wi-Fi指纹数据基于定位校正数据进行处 理。处理方法是根据定位校正数据，按Wi-Fi时间戳提取Wi-Fi列表数据，形成Wi-Fi指纹数据。通过采集路线定位校正点坐标数据对Wi-Fi指纹数据中的位置数据进行误差控制，保证Wi-Fi指纹数据精度优于50cm。

The Wi-Fi Fingerprint Dataset of Xidan Business District Demonstration Zone covers Xidan Joy City, Galeries Lafayette and Grand Pacific Mall in Beijing, with a total indoor area of 363,200 square meters. The dataset includes fingerprint point coordinate information, Wi-Fi list data (MAC address and signal strength) and timestamps. The Wi-Fi fingerprint data is processed using positioning calibration data. The specific processing workflow is to extract Wi-Fi list data based on the Wi-Fi timestamps with the assistance of the positioning calibration data to form the complete Wi-Fi fingerprint dataset. Error control is performed on the positional data within the Wi-Fi fingerprint dataset by collecting coordinate data of positioning calibration points along the data collection route, ensuring that the positioning accuracy of the dataset is better than 50 centimeters.