Ultra-Wideband Radar-Based Indoor Activity Monitoring for Elderly Care

Hämäläinen, Matti; Mucchi, Lorenzo; Caputo, Stefano; Biotti, Lorenzo; Ciani, Lorenzo; Marabissi, Dania; Patrizi, Gabriele

doi:10.3390/s21093158

Cited by 29 publications

(18 citation statements)

References 30 publications

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“…In contrast to the previously discussed, the solutions reported in [204], [206], [212] imply no direct contact or interaction to a human user. In [204] the authors introduce a setup composed of multiple RFID tags mounted on a wall and a single reader.…”

Section: ) Body-external Sensor and Actuator Devices And Systemsmentioning

confidence: 86%

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Emerging Technologies for Next Generation Remote Health Care and Assisted Living

Ahmad

Asghar²,

Kumar

et al. 2022

IEEE Access

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Remote health care is currently one of the most promising solutions to ensure a high level of treatment outcome, cost-efficiency and sustainability of the healthcare systems worldwide. Even though research on remote health care can be traced back to the early days of the Internet, the recent COVID-19 has necessitated further improvement in existing health care systems with invigorated research on remote health care technologies. In this article we delve into the state-of-the-art research in latest technologies and technological paradigms that play a vital role in enabling the next generation remote health care and assisted living. First the need of using the latest technological developments in the domain of remote health care is briefly discussed. Then the most important technologies and technological paradigms that are crucial in enabling remote health care and assisted living are emphasised. Henceforth, a detailed survey of existing technologies, potential challenges in those technologies, and possible solutions is conducted. Finally, missing research gaps and important future research directions in each enabling technology are brought forth to motivate further research in remote health care.

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Section: ) Body-external Sensor and Actuator Devices And Systemsmentioning

confidence: 86%

“…Notably, the use of LPWAN-based connectivity allows to deploy the devices even in households not connected to the Internet. Note, that the solutions reported in [204], [206], [209] focus specifically on sensoring and do not address visualization of the data or their delivery to an end-user.…”

Section: ) Body-external Sensor and Actuator Devices And Systemsmentioning

confidence: 99%

Emerging Technologies for Next Generation Remote Health Care and Assisted Living

Ahmad

Asghar²,

Kumar

et al. 2022

IEEE Access

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“…Furthermore, they also analyzed the reliability and fault tolerance of the UWB radar network framework. The experimental results show that the accuracy of the system can reach 99% for the static posture of the human body [24]. Besides, the SVM is also widely used in classification scenarios.…”

Section: Related Workmentioning

confidence: 98%

Wise Information Technology of Med: Human Pose Recognition in Elderly Care

et al. 2021

Sensors

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The growing problem of aging has led to a social concern on how to take care of the elderly living alone. Many traditional methods based on visual cameras have been used in elder monitoring. However, these methods are difficult to be applied in daily life, limited by high storage space with the camera, low-speed information processing, sensitivity to lighting, the blind area in vision, and the possibility of revealing privacy. Therefore, wise information technology of the Med System based on the micro-Doppler effect and Ultra Wide Band (UWB) radar for human pose recognition in the elderly living alone is proposed to effectively identify and classify the human poses in static and moving conditions. In recognition processing, an improved PCA-LSTM approach is proposed by combing with the Principal Component Analysis (PCA) and Long Short Term Memory (LSTM) to integrate the micro-Doppler features and time sequence of the human body to classify and recognize the human postures. Moreover, the classification accuracy with different kernel functions in the Support Vector Machine (SVM) is also studied. In the real experiment, there are two healthy men and one woman (22–26 years old) selected to imitate the movements of the elderly and slowly perform five postures (from sitting to standing, from standing to sitting, walking in place, falling and boxing). The experimental results show that the resolution of the entire system for the five actions reaches 99.1% in the case of using Gaussian kernel function, so the proposed method is effective and the Gaussian kernel function is suitable for human pose recognition.

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“…The authors of [ 25 ] present a conceptual guide to the UWB impulse signal and target interaction phenomenon showing how to use the signal spectrum change to identify and enhance detection and tracking of certain target classes. In [ 26 ], the authors present a method which uses only one UWB radar device for multiple detection purposes. Moreover, reliability and fault tolerance analysis for the radar device were illustrated, too.…”

Section: Uwb Radar Applicationsmentioning

confidence: 99%

Sinuous Antenna for UWB Radar Applications

Mescia

Mevoli

Lamacchia³

et al. 2021

Sensors

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In this paper, the recent progress on sinuous antennas is detailed, focusing the attention on the antenna geometry, dielectric structure, and miniaturization techniques. In the first part, we introduce the basic principles of the frequency-independent antenna, in particular the self-complementary and log-periodic geometries, as well as the antenna geometries, all characterized in terms of angles. The operating principles, main advantages, system design considerations, limits, and challenges of conventional sinuous antennas are illustrated. Second, we describe some technical solutions aimed to ensure the optimal trade-off between antenna size and radiation behavior. To this aim, some special modification of the antenna geometry based on the meandering as well as on the loading with dielectric structures are presented. Moreover, the cavity backing technique is explained in detail as a method to achieve unidirectional radiation. Third, we present a new class of supershaped sinuous antenna based on a suitable merge of the 2D superformula and the sinuous curve. The effect of the free parameters change on the antenna arm geometry as well as the performance improvement in terms of directivity, beam stability, beam angle, gain, and radiating efficiency are highlighted.

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Ultra-Wideband Radar-Based Indoor Activity Monitoring for Elderly Care

Cited by 29 publications

References 30 publications

Emerging Technologies for Next Generation Remote Health Care and Assisted Living

Emerging Technologies for Next Generation Remote Health Care and Assisted Living

Wise Information Technology of Med: Human Pose Recognition in Elderly Care

Sinuous Antenna for UWB Radar Applications

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