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ith the downgrading of COVID-19, the public affairs we contact in our daily life still cause potential indirect transmission risks, so we should pay more Gesture recognition is used to safely and quickly control these objects, so as to avoid them becoming the "hotbed" of virus transmission, reduce the chance of virus infection, and ensure the safety of public health. Gesture recognition is used to safely and quickly control these objects, so as to avoid them becoming the "hotbed " of virus transmission, reduce the chance of virus infection, and ensure the safety of users. Based on this, we propose to develop a contactless switching system using low cost and high reliability infrared gesture recognition.