Abstract: With the aggravating trend of aging population,the proportion of the population who are suffering sub-health and chronic disease increases.This situation seriously restricts the improvement of the harmonious society and the quality of peoples' life.However,the traditional medical resource shows some problems,such as uneven distribution and quality difference between urban and rural areas,this cannot meet people’s growing demand.In order to obtain health data,for example,pulse,temperature,blood oxygen,one multi-parameter health detection system is designed based on the android audio interface.This system adopts low power consu-mption Msp430 single clip microcomputer to collect the data of pulse,temperature,blood oxygen,etc.Then it codes the data follows a special amplitude communication protocol and transfers them to the mobile terminal through the android audio interface.Lastly,after the decoding,the data of pulse,temperature and blood oxygen could display on the mobile screen and achieves multi-parameter data detection,this design makes operation simple and fast,and it thus has practical value.

Key words: multiple parametera, mobilephone audio communication, Android, amplitude modulation