The paper presents the evolution of activity monitoring utilising wearable sensors through several sequential projects running in the last decade. It covers the change and improvement towards sensor technology that is more afordable and comfortable for the users and development of additional functionalities to achieve accurate activity monitoring in terms of activity recognition. All presented systems are developed to perform on-line activity recognition.
Activity monitoring, activity recognition, wearable sensors, smart-phone, real-time location system, inertial sensors, optical motion capture