Four innovative achievements, including "Multi-objective flexible composite noise reduction technology and application of air conditioner outdoor unit", "Multi-objective dynamic optimization AI energy-saving control algorithm for household variable frequency air conditioner under all working conditions", "Key technology of intelligent diagnosis of air flow and refrigerant dual circulation system of household air conditioner", and "Key technology of intelligent commodity inspection and active maintenance of refrigerator based on cloud platform", led by Xiaomi Smart Home Appliances (Wuhan) Co., Ltd., have completed the scientific and technological achievement appraisal. The appraisal meeting was organized by the China Light Industry Federation, and the appraisal committee was composed of Academician He Yaling of Xi'an Jiaotong University and experts and scholars from Shanghai University of Technology, China Household Electrical Appliance Research Institute, Shanghai Jiaotong University, Xi'an Jiaotong University, Institute of Physical and Chemical Technology of the Chinese Academy of Sciences, Zhejiang University, and Huazhong University of Science and Technology. Shan Lianyu, general manager of Xiaomi Home Appliances, said on Weibo: "We have made great efforts to make products, studied technology steadily, and invested heavily in core technologies. Congratulations to the air conditioner and refrigerator teams." Lu Weibing, partner and president of Xiaomi Group, said: "We will use the technical density of mobile phones to empower home appliances and fully conquer all core technologies."