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Transforming the field of portable noninvasive brain monitoring from cumbersome, inconvenient and obtrusive sensing systems into new ergonomic, user-friendly solutions requires solid evidence from practice. Multi-modal sensing of brain signals digitized at the sensor level, minimization of noise using active sensors and shielding, and flexible and reconfigurable dry electrodes are essential components...
The objective of this project is to create a novel device to monitor and report back with comprehensive physiological status and alerts of hazards encountered by the firefighter. The device is a band-aid like device that would be attached to the firefighter's skin positioned on the upper arm. The device would monitor the firefighter's physiological health including heart rate and blood oxygen level,...
This paper presents a button-like wearable wireless non-contact system (NCMB-Button) for long-term multiple biopotential monitoring. Featured non-contact detection based on ultra-high input impedance of the analog front end, the NCMB-Button is capable of acquiring multiple biopotential signals including ECG, EMG, and EEG, through multiple layers of cloth without directly contacting human skin. The...
In the presented paper we have explained the design and implementation of a system that is capable in monitoring of mental stress in real time. To determine the stress of the person we have tried to estimate the autonomic state of the person, the idea is based on the basic fundamental, and it states emotional arousal is directly linked with the autonomic state of the person. To determine the autonomic...
This paper present a wearable platform, for cardiac signal monitoring, developed by using conductive threads into a cloth article. For reading the human body, impedance variations were used flexible electrodes developed for the wearable ECG platform. The dry ECG electrodes have been developed by knitting technology. The electrodes have been integrated into the textile assembly together with the electronics...
Healthcare is one of important factors for persons to keep their happiness during daily life. In order to maintaining good health conditions, daily continuous health monitoring is effective to find small symptoms before causing severe conditions. In this study, wearable, healthcare sensor sheets are proposed to monitor health conditions and activity, simultaneously, consisted of a skin temperature...
It is important to equip future vehicles with an onboard system capable of tracking and analyzing driver state in real-time in order to mitigate the risk of human error occurrence in manual or semi-autonomous driving. This study aims to provide some supporting evidence for adoption of consumer grade electronic devices in driver state monitoring. The study adopted repeated measure design and was performed...
This paper presents a non-contact measurement method for the evaluation of human blood pressure. A reflection type optical imaging system was developed to interactively capture the human palmar back images with illumination of dual light sources. By a continuous measurement, the variation of oxygen saturation in palmar digital vein could be monitored. The fluctuation frequency of the oxygen saturation...
The growing demands of continuous healthcare and hence physiological monitoring necessitates a system with high reliability and accuracy. Wearable used for continuous cardiological parameter estimation from wrist use reflective photoplethysmography technique that has certain limitations which are imperative. One such constraint is skin pigmentation of the subject. In the present work a sensor module...
Wearable technology has become ubiquitous in recent years due to the miniaturization of circuit electronics and advances in smart materials that can conform to the requirements posed by the human body, behaviour and experience. Sensors of this type are found attached almost to every body segment, capable of delivering signals even in harsh activity scenarios. The reliability and relevance of the physiological...
Insufficient sleep has been found to be associated with a wide range of negative health and social outcomes. The pharmacological approach to this problem often raise issues related to dependence and residual daytime side effects. An alternative approach offering a potential solution to sleep deprivation is a non-pharmacological technique based on applying electrocutaneous stimulation during the slow...
Wearable sensors are useful in the field of robotics, rehabilitation, biomechanics and medicine. In this work, we present a wearable measurement system equipped with a flexible, stretchable and tactile sensors array. The system contains four strain gauges connected to four separate Wheatstone bridges. The strain gauges were embedded into silicone Dragon skin to ensure the necessary properties of a...
In this article we describe the design and construction of a wearable sEMG signal acquisition system for long term monitoring using dry electrodes based on conductive fabrics. It is necessary to have a system capable of conforming to the shape of the forearm in order to acquire more reliable signals during long time sensing. Therefore, we develop a miniaturized sEMG acquisition system that can be...
In this paper, three experiments with coupled dipoles were carried out in order to determine the optimal distance where an efficient communication link can be established. The simulations results showed that when the subcutaneous dipole is installed adjacently to the surface of the skin, the dipole mounted above the skin level should be in the range of 20 mm to 25 mm for efficient communication. Subsequently,...
In this paper, we explore the feasibility of developing a sensor-driven rehabilitation game for people suffering from dysphagia. This study utilizes the skin-like electronics for unobtrusive, comfortable, continuous recording of surface electromyograms (EMG) during swallowing and use them for driving game-based, user-controlled feedback. The experimental study includes the development and evaluation...
Respiratory Rate (RR) is one of the key vital signs that is routinely monitored by medical professionals and health care providers. Remote monitoring of it helps in detecting several clinical conditions and low-cost sensors are needed in telemedicine. Most of the current day measurement systems for RR involve the use of sensors that are in contact with the subject, causing discomfort. In case of neonates,...
A wearable system based on a breathable cloth wristband equipped with stretchable strain gauge sensors were assembled and tested to detect a set of 16 different hand gestures. The sensors embedded on the wristband prototype do not require a direct contact with the skin, thus maximizing comfort. To evaluate the performance of the developed band, different gestures were labelled by using grasping information...
During an examination, the performance of a student not only depends on the preparation but also depends on cognitive and psychological factors. The present study aims at analysing the dynamics of the mental workload or stress and its impact on students' performance during an examination process. The experiment is designed using a set of multiple choice questions (MCQs) in one of the subject area...
Real-time monitoring of mental effort enables the possibility of dynamically adapting the challenge of a task given to an individual, thereby maintaining the skill-challenge balance. In this paper we propose a remote monitoring system for assessing mental effort or cognitive load using low cost Galvanic Skin Response (GSR) sensor. The variations in the skin conductance level measured using the GSR...
Working stress is recognized as one of the major challenges faced by the working community around the world. Working Stress is the response of the people, when presented work demands are not matched to their knowledge and ability and which challenge their ability to cope. Increased stress at work cause depression and anxiety. Working stress cannot be avoided, so mechanism to cope with the stress positively...
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