Non-Intrusive Tank-Filling Sensor Based on Sound Resonance

Motor Energy Management based on Non-Intrusive Monitoring Technology and Wireless Sensor Networks 57 Motor Energy Management based on Non-Intrusive Monitoring Technology and Wireless Sensor Networks

Induction motors are widely used in industry as essential driving machines. There are many motor driven systems in plants, such as pumping systems, compressed air systems, and fan systems, etc. These motor driven systems use over 70% of the total electric energy consumed by industry. Because of the oversized installation or under-loaded conditions, motors generally operate at low efficiency whi...

Non-intrusive aggregation in wireless sensor networks

Since energy is scarce in sensor nodes, wireless sensor networks aim to transmit as few packets as possible. To achieve this goal, sensor protocols often aggregate measured data from multiple sensor nodes into a single packet. In this paper, a survey of aggregation techniques and methods is given. Based on this survey, it is concluded that there are currently several dependencies between the ag...

Intrusive and non-intrusive watermarking

“Can we watermark without perturbing an image?” We present the salient results of the investigation carried out to find an answer to this question.

Measuring Emotional Wellbeing with a Non-intrusive Bed Sensor

We examine the possibility of using non-intrusive bed sensor measures to ascertain the emotional wellness of an individual. To this end we did a convergent validation study to determine whether heart rate and respiration measures provided by the bed sensor correlate with self reports through questionnaires. The results show that negative affect and worry tension positively correlate with noctur...

Non-intrusive Occupancy Inferencing using Opportunistically Available Sensor Sources