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Mobile electronic fence (hotspot collection) device: capable of automatically collecting SIM, IMEI, MAC and other mobile card code information of mobile, Unicom, and Telecom phones that support 2G, 3G, 4G, and 5G standards; Supports different frequency points such as 4G Mobile B38 \ B39 \ B40 \ B41, China Unicom B1 \ B3, and China Telecom B1 \ B3. The backend management platform can provide information support for solving cases through big data analysis of card code data collected by front-end devices. The main functions include deployment warning, collision analysis, companion analysis, trajectory analysis, number of passengers on board analysis, resident population analysis, and pedestrian flow analysis; It can be combined with license plate camera data and facial cameras to perform correlation analysis between human code collision and vehicle code collision comparison big data, providing big data support for case investigation. The product is only for use by authorized units such as public security and government.































