Secondly, in the whole measurement process, the measurer should sit up straight and look straight ahead, so that the human body does not have to shake, so as to ensure that the ultrasound can obtain information more accurately in the whole measurement process. The intelligent height and weight measuring instrument developed by Shanghai Rui products has been widely used in hospitals, residential areas, nursing homes, military hospitals and other hospitals for routine physical examination and human health care because of its solid product quality, accurate measurement and convenient operation, which further improves the measurement efficiency and facilitates the application of residents. "