Nowadays, with the development of science and technology, smart homes are used more and more widely in our daily lives. Radar technology plays a crucial role in the development of smart homes. The main research object is radar technology that is used in smart homes. This paper aims to study the current development trend of radar technology in smart homes, the future development trend of radar technology in smart homes and the role of products. This paper explores the current status, development direction and role of radar technology in smart homes. In this paper, data search, picture rendering and other methods are used. This paper mainly research in three types of radar technology: millimeter wave radars, infrared radars and laser radars. This paper mainly introduce the principle, preponderance and applications of these radars. According to the study, the potential of radar technology in smart homes is considerable.This paper is optimistic about the development of radar technology in smart homes.
