A Wearable System That Detects Posture and Heart Rate: Designing an Integrated Device With Multiparameter Measurements for Better Health Care

We present an integrated wearable system that combines real-time posture detection, heart rate (HR) monitoring, and quantitative activity monitoring into a robust wearable device. The system includes a wearable device, a smartphone application, and a server. MSP430, an ultralow-power microprocessor, is used in the wearable device to calculate HR, count walking and running steps, tabulate push-ups and sit-ups, and detect posture. Data transmissions are conducted from the wearable device to a smartphone to display the information to the user, record all received data, and upload data to a server. A total of 10 healthy subjects volunteered for our experiments, with an age range of 22 to 29 years. The results are 100% accurate in various postures.