Towards real-time monitoring and detectime monitoring of asthma symptoms on resource-constraint mobile device

In this paper, we present work in progress on application scenario where a smartphone is used to detect and quantitatively index early signs of asthma attack triggered by exercise. Here, the embedded microphone in the mobile phone records the user´s breath sound while motion sensors-accelerometer, gyroscope and digital compass provide measurements on the level or intensity of activity and posture changes. Our design and preliminary result show that using only built-in sensors in smartphones, mobile phones can sufficiently and reliably monitor health status of patients with long-term respiratory conditions such as asthma.