We present a mobile platform for body sensor networking based on a smartphone for lightweight signal processing of sensor mote data. The platform allows for local processing of data at both the sensor mote and smartphone levels, reducing the overhead of data transmission to remote services. We discuss how the smartphone platform not only provides the ability for wearable signal processing, but it allows for opportunistic sensing strategies, in which many of the onboard sensors and capabilities of modern smartphones may be collected and fused with body sensor data to provide environmental and social context. We propose that this can help refine data reduction at the local level. We describe three examples related to health and wellness, to which our system has been applied. Categories and Subject Descriptors J.3 [Computer Applications]: Life and Medical Sciences-health, medical information systems. General Terms Design, Experimentation, Human Factors Keywords Wireless sensors, body are...
Edmund Y. W. Seto, Eladio Martin, Allen Y. Yang, P