Identification of key factors in health service adoption based on Internet of things and empirical test

With China's increasingly serious problem of aging, and chronic diseases and other diseasesincreasingly extending toward younger people, health problems have become the focus of social concern. The application and development of the Internet of things in health services has been paid more and more attention by the country and the society. Whether the Internet of things technology and its derivative products can be adopted by consumers has become an important scientific problem to be solved urgently. This article constructs the index system of adoption of key influencing factors from the aspect of IoT and the concept of health services. This article analyses the relationship between the various factors using DANP method, and builds the improved PROMETHEE method by introducing the concept of expectation level into the preference function. And it makes an empirical analysis taking the similar service of three companies as the research object, and finds out the gap between the three companies' services and expectation levels, and suggestions are given.