Outdoor Alzheimer’s Patients Tracking Using an IoT System and a Kalman Filter Estimator

Adardour, Haroun Errachid; Hadjila, Mourad; Irid, Sidi Mohammed Hadj; Baouch, Touhami; Belkhiter, Saad Eddine

doi:10.1007/s11277-020-07713-4

Cited by 20 publications

(8 citation statements)

References 29 publications

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“…These areas include multi-user detection and integration with IoT technology. In the case of tracking Alzheimer's patients outside 32 , the AOA frequency hopping method proves to be valuable. By employing this technique, it becomes possible to determine the direction of the signal emitted from either a wearable device or a GPS tracker.…”

Section: Simulation and Experiments Resultsmentioning

confidence: 99%

The angle of arrival estimation of frequency-hopping cooperative object based on software-defined radio

Rustamaji,

Kliwati,

Widada

2024

Sci Rep

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The primary objective of this research is to propose and examine a technique for accurately determining the azimuth angle of cooperative objects. The proposed methodology aims were to achieve fast processing, increased precision, and enhanced safety. A transmitter emitting a continuous wave with a hopping frequency was utilized in combination with interferometry techniques to measure the angle of arrival (AOA) between two antennas. The efficient method incorporates a coarse-to-fine strategy that improves processing speed and azimuth angle accuracy and to effectively eliminate any signal interference, a Fourier bandpass filter is utilized. The coarse estimation is performed using the fast Fourier transform (FFT) algorithm, while the fine estimation is achieved using the multiple signal classification (MUSIC) algorithm. The fine estimation involves utilizing coarse angle input and a scan limit of 2.5° that is determined from the largest simulated root mean square error (RMSE) value. Modelling and outdoor testing using software defined radio (SDR) have been carried out to assess the proposed methodology. The results from the analysis indicate that the proposed method produces the desired RMSE estimation of less than 1°, thereby validating its accuracy and effectiveness.

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Section: Simulation and Experiments Resultsmentioning

confidence: 99%

The angle of arrival estimation of frequency-hopping cooperative object based on software-defined radio

Rustamaji,

Kliwati,

Widada

2024

Sci Rep

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“…Agitation, which was among the prevalent problems among AD/dementia patients, could lead to secondary risks such as getting lost or going to dangerous places [ 76 ]. These incidents may occur in various environments, for each of which indoor- or outdoor-specific technologies were used ( Table 2 ).…”

Section: Discussionmentioning

confidence: 99%

“…places [76]. These incidents may occur in various environments, for each of which indoor-or outdoor-specific technologies were used (Table 2).…”

Section: Aspects Of Carementioning

confidence: 99%

Applications and Outcomes of Internet of Things for Patients with Alzheimer’s Disease/Dementia: A Scoping Review

Sheikhtaheri

Sabermahani

2022

BioMed Research International

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Objectives. We aimed to identify and classify the Internet of Things (IoT) technologies used for Alzheimer’s disease (AD)/dementia as well as the healthcare aspects addressed by these technologies and the outcomes of the IoT interventions. Methodology. We searched PubMed/MEDLINE, IEEE Explore, Web of Science, OVID, Scopus, Embase, Cochrane, and Google Scholar. In total, 13,005 papers were reviewed, 36 of which were finally selected. All the reviews were independently carried out by two researchers. In the case of any disagreement, the problem was resolved by holding a meeting and exchanging views. Due to the diversity of the reviewed studies, narrative analysis was performed. Results. Among the technologies used for the patients including radio frequency identification (RFID), near field communication (NFC), ZigBee, Bluetooth, global positioning system (GPS), sensors, and cameras, the sensors were employed in 36 studies, most of which were switch and vital sign monitoring sensors. The most common aspects of AD/dementia care monitored using these technologies were activities of daily living (ADLs) in 27 studies, followed by sleep patterns and disease diagnosis in 19 and 14 studies, respectively. Sleeping, medication, vital signs, agitation, memory, social interaction, apathy, movement, tracking, and fall were other aspects monitored by IoT. Then, their outcomes were reported. Conclusion. Using IoT for AD/dementia provides many opportunities for considering various aspects of this disease. Moreover, the ability to use various technologies for gathering patient-related data provides a comprehensive application for almost all aspects of the patients’ care with high accuracy.

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“…It is highly encouraged to employ this filter when the uncertainty on the processed acquisition data can be understood, as a random noise, which's the distribution, is known a priori. However, one of the great advantages of the KF algorithm, are as follows: the estimation error, is considered as an indicator of accuracy; and its algorithm has a recursive nature in time domain, and it disposes an optimal estimator in the least-squares meaning [18,[28][29][30].…”

Section: Definitionmentioning

confidence: 99%

Embedded System Prototype to Fight Covid-19 Pandemic Contamination with Less Cost

Adardour

Hadjila

Irid

et al. 2021

Wireless Pers Commun

Self Cite

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In the shadow of the coronavirus (Covid-19) pandemic, the sterilization has become a major necessity for humans to avoid exponential Infection. In order to avoid touching contaminated surfaces, we develop an embedded system prototype, which allows the bottle or any other medium to pour the sterilization product without touching it. The human hands are detected using two sensors HC-SR04 and LM35. To overcome the stability problem due to the problem of sensor noise and enhance the system performance a Kalman filter algorithm is implemented to ensure stable hands detection. The efficiency of the prototype mounted on an Arduino board is checked. After the completion of the prototype, a comprehensive cost analysis is conducted.

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Outdoor Alzheimer’s Patients Tracking Using an IoT System and a Kalman Filter Estimator

Cited by 20 publications

References 29 publications

The angle of arrival estimation of frequency-hopping cooperative object based on software-defined radio

The angle of arrival estimation of frequency-hopping cooperative object based on software-defined radio

Applications and Outcomes of Internet of Things for Patients with Alzheimer’s Disease/Dementia: A Scoping Review

Embedded System Prototype to Fight Covid-19 Pandemic Contamination with Less Cost

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