B-Pack: a Bluetooth-based wearable sensing device for nursing activity recognition

This paper presents a wearable sensing device called "B-Pack", which is designed to capture nursing activities in real hospitals. To provide usability and flexibility, B-Pack features wireless connectivity using Bluetooth and a rechargeable battery with on-board charging circuitry. Furthermore, to acquire synchronized data on distributed parts of wearer's body, B-Pack features a time synchronization protocol. Through experiments and interviews, we confirmed that the data from each body part was appropriately collected for nursing activity recognition and that the design is suitable for a real nursing environment.