Abstract: Sleep accounts for about 1/3 of users' life time, which is an important scene of smart appliances. In order to get sleep, some smart air conditioners will adopt linkage bracelets, smart pillows and other methods, which require users to wear or buy additional linkage products. In order to collect the sleep state with low cost, no feeling and more accuracy, a method of obtaining the user's sleep state through a miniaturized remote controller is introduced. The acceleration sensor is placed on the miniaturized remote controller, which is clamped on the user's pillow to collect acceleration data to realize the recognition of sleep and the judgment of sleep quality. There is no need to wear and the cost is low. The effective acceleration data filtering algorithm and sleep entry/exit recognition method are studied. The sleep quality judgment method is extracted based on Pittsburgh sleep quality index, and the corresponding air-conditioning sleep scene application is designed.

Key words: Acceleration sensor, Sleep recognition, Sleep assessment, Air conditioner