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This paper deals with the Sudden Infant Death Syndrome (SIDS) problem. The main objective is to limit it by controlling the main reasons that may lead to it. Sudden infant death syndrome is the death without specific reason of a healthy newborn, usually during sleep. Although the causes are unknown, SIDS may be related to abnormalities in the infant's brain that controls breathing and arousal from...
This paper presents a novel approach to compare a smoothed first-order Integral Sliding Mode Controller with a second generation CRONE Controller in the frequency domain. Sliding mode control is a nonlinear control technique based on variable structure control offering insensitivity to modeling parameters variations and disturbance rejection. The chattering problem caused by high frequency switching...
This paper aims to present a universal mask that enables all adult patients to use it. This mask has a universal size and head gear. It has many options; from among we list the embedded SpO2 and EEG electrode connections. This mask enables also the input of oxygen, nebulizer, air CPAP and medication. A mechanical switch is used to select between air CPAP and nebulizer.
This paper proposes a method to control temperature over a finite diffusive interface using the CRONE controller. The second generation was chosen to be implemented in this paper as the plant model showed a constant phase margin when changing the metal constituting the diffusive interface media. As a result, an a posteriori synthesis method was established in order to control temperature at certain...
This paper aims to develop a sensor based monitoring and analyzing system for Neuro-Degenerative Disorder patients (NDD); this may consist on SpO2 sensor, Electrophysiological sensors, NIBP, Motion Capture sensors and Eye Monitoring sensor, taking into consideration an acceptable cost for the whole system. Recorded data will be sent to an embedded decision making unit where detection, analysis, classification,...
This paper presents the design of a regulator to control the temperature of a semi-infinite diffusive interface medium by using a unique robust controller for three different materials: aluminum, copper and iron. The second generation CRONE is used to control the temperature at the boundary where the density of flux is applied (i.e., x=0mm) as the parametric uncertainties (due to the copper and the...
This paper presents a system that is able to monitor the patient vital signs (Heart Rate, SPO2, NIBP, ECG, temperature and respiration rate) and send them continuously to the doctor's android phone device. The system enables multiple patients to be connected to the same doctor. Within the system, the health care professional may activate/deactivate any of the vital signs sensors. He can also set a...
Different control analysis and design methods exist using either time domain or frequency domain. This paper explores the robustness of four control techniques, two using the frequency domain (PID and CRONE — French acronym of Commande Robuste d'Ordre Non Entier) and two using the time domain (State-feedback and SMC — Sliding Mode Control). All four techniques are applied on a position control for...
Nowadays, many major efforts and interests are focused on providing better services for some elders and patients who have to live alone, while they are exposed to different dangers during their daily life activities such as falling. The necessity to reduce the negative consequences of falling, whether related to physical or psychological health or to financial encumbrances, by providing an immediate...
This paper presents the design of the temperature control of a diffusive medium by using a unique robust controller for three different materials: aluminum, copper and iron. For the control-system design, the aluminum is selected as the material defining the nominal model. Then, the second generation CRONE control is used because the parametric uncertainty (due to the copper and the iron) leads to...
The time response is one of the main concerns when controlling and analyzing a system. Getting this response for some systems is sometimes difficult especially if the transfer function modelling this system is non-integer or nonlinear. The thermal diffusive interface is an example of such systems. In fact, when considering the semi-infinite homogeneous plane, the time response can be analytically...
This paper presents a comparison between fractional order controllers and integer order controllers. The well-known PID is the integer order controller chosen whereas the generalized PID and the CRONE (“Commande Robuste d'Ordre Non Entier” which stands for fractional order robust controller) are the fractional order controllers studied. Another big difference between these controllers is that the...
In recent years, the technology is playing an increasing role in the health care provided to patients, the proposed prevention to the population and the dedicated services for dependent persons due to an illness or a disability. This technology is derived from multidisciplinary fields, combining the research laboratories in Mathematics, Science and Information, Communication Technologies and so on…...
As in the first part, the main purpose of this work is to derive some models used to the design and the validation of an automatic control system of temperature. After presenting, in the first part, the modelling and the approximation of the diffusive interface in the homogeneous semi-infinite plane medium, this second part deals with homogeneous finite plane medium. From partial differential equations...
The fractional differentiation and integration exist in natural phenomena or can be artificially introduced into other domains. Concerning the thermal diffusive interface, the fractional expression is emphasized when taking the applied flux as input for the system and the measured temperature at any point as an output. However, the main problem when facing such systems is to pass from the frequency...
This paper presents the effects of the temperature variation on the fractional order system of first kind realized in the electrical domain. The temperature variation, which is one of the parametric uncertainties which encounters the system’s behaviour, alters the values of the resistive and capacitive (RC) components used for the realization of this fractional system. The experimental results show...
Nowadays, the major problem in Lebanese hospitals is the absence of accurate database systems that can provide the reception with a list of available beds or rooms in the hospital. Hence, the system we have realized aims to provide a new tool to check the availability of the beds based on hardware and software. Therefore, each bed is equipped of a sensor based network that can test whether this bed...
The recognition of fractional order behavior when identifying physical systems is relatively new. One of these fields where the fractional order integration can show up is the thermal diffusive interfaces. In fact, for some special conditions, an integration of order 0.5 appears when identifying the system. So, the objective of this work, divided into two parts, is to study the presence and the effects...
This second part follows a first part where a background study and the implementation process of fractional order systems were presented. In this part, the results of the test bench are shown. Some uncertainties, related mainly to the parametric effects, as the components tolerance, are also presented in order to study the stability and the robustness of the system toward these variations. The results...
In this first part, we present a background study of the fractional order system and the way to synthesize and implement those systems in the electrical domain by means of resistors and capacitors. The electrical test bench used to implement this fractional order system of the first kind is shown as well as two different arrangements. The first one is based on a fractional order system while the second...
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