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This paper investigates the application of a multi-loop PID controller in an automated treadmill exercise machine. The approach is to design a computer-controlled treadmill control system for the regulation of heart rate (HR) during treadmill exercise. A single-input and multiple-output (SIMO) controller was implemented to fast track a given heart rate profile in treadmill exercise. Two separate single-input...
Changes in the behavioral activity of elderly people living alone at home may be an indicator of their functional health status. In this paper, we evaluate the characteristics of a pyro-electric infrared detector (PIRD) and demonstrate that the sensitivity of the detector can be increased if four sensors, one at each corner of the room, is installed (instead of one). The experimental results suggest...
With an ageing world population and a corresponding demand for aged care, interest in the development of home telemonitoring systems has increased greatly in recent years. Automated sound analysis systems have been considered as an alternative for video monitoring in the interests of privacy. This paper investigates the use of frequency domain features, namely the Mel frequency cepstral coefficients...
This paper discusses the innovative use of the Tablet PC for lectures and the electronic whiteboard for tutorial discussions and laboratories. The paper also presents the new evaluation results on the use of the electronic whiteboard for prerecorded lectures that combine a synchronized lecturer video with dynamic annotation. The results clearly show that signal processing students feel they can review...
In this study we aimed to establish the usefulness of the time constant of heart rate recovery (Tr) in the evaluation of cardiovascular fitness. 15 male subjects exercised on recumbent bicycle at three different workloads (75 W, 100 W 125 W) where R-R intervals were monitored to determine Tr. In order to find the maximal oxygen uptake (VdotO2max) of each subject, oxygen consumption rate (VdotO2max...
The ability to revisit live lecture material confers a range of benefits to students, particularly if it can closely replicate the rich environment of the live classroom. This paper proposes a new mode of lecture delivery based on digital capture and student-controlled playback of synchronized lecturer dynamic annotation and video. This approach was tested in a large undergraduate course during which...
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