The research group has carried out the research and development of mobile phone software based on Symbian platform since 2003, mobile phone software based on IOS platform since 2008, and mobile phone software based on Android platform since 2009. In the field of mobile computing, the key research directions are: mobile ad hoc network, sensor network, Internet of things, indoor positioning technology, video compression and reliable transmission technology based on wireless network, communication and image processing technology based on compressed sensing, fall detection technology, etc.