Group 1: Fish Face Recognition System - The "Fish Face Recognition" system has been developed to monitor fish populations in Beijing's water bodies using 5G and AI technology, providing real-time data on species and quantities [1][2][5] - This system addresses challenges in underwater monitoring, which previously relied on inefficient manual netting methods, by enabling continuous and non-invasive observation [2][4] - The system has been implemented in various rivers including Yongding River, North Canal, Chaobai River, and Daqing River, and has reached version 2.0, enhancing its monitoring capabilities [5] Group 2: Dust Control Innovations - The Beijing Environmental Protection Science Research Institute has also developed a multi-directional dust sampling device to aid in dust pollution control, which is crucial for improving urban air quality [6][7] - This device collects dust data from four wind directions and static conditions, allowing for the identification of pollution sources and guiding targeted dust management efforts [6][7] - The multi-directional dust sampler has received patents and awards, and has been successfully applied in various districts of Beijing and extended to regions like Hengshui City in Hebei Province [7]