A Wire-Free and Fiber-Based Smart T-Shirt for Real-Time Breathing Rate Monitoring

A new wearable smart T-Shirt design for breathing rate monitoring using Received Signal Strength Indicator (RSSI) is proposed. This new design features three principal functions: a wireless sensor to monitor the breathing rate, a wireless power transfer system, and a user interface to analyze the collected breathing data. First, the breathing curves obtained from a breathing sensor incorporated in a smart T-shirt were presented. Then, the data analysis methods are applied for extracting the important parameters for medical diagnosis. To observe multiple breathing profiles, additional results are presented for different tests on male and female subjects using another design of a smart T-shirt system consisting of an array of six sensors.