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@article{193311,
        author = {Aswani Gireesh and Anand s and Anijith S and Devika sajeev and Vishnu V and Akhil A G},
        title = {Contactless Sensing and IoT Integration in Geriatric Healthcare: A Literature Review},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {10},
        pages = {69-74},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=193311},
        abstract = {Continuous and non-invasive health monitoring has gained significant attention in recent years, particularly for elderly care and clinical environments where patient comfort and hygiene are critical. This literature review presents a comprehensive analysis of existing contactless health monitoring systems, focusing on radar-based sensing, infrared thermography, ambient assisted living frameworks, and IoT-enabled healthcare architectures. Previous studies demonstrate that radar-based techniques, including FMCW and Doppler radar, offer high accuracy in monitoring vital signs such as heart rate and respiration without physical contact. Infrared thermography has proven effective for non-contact body temperature measurement, especially in clinical screening and remote healthcare applications. Additionally, IoT-based healthcare systems enhance real- time monitoring, data accessibility, and remote medical supervision. However, the literature also highlights key limitations such as high system cost, complex hardware requirements, sensitivity to environmental factors, and challenges related to data security and system scalability. This review synthesizes the strengths and limitations of existing approaches and identifies the need for cost- effective, scalable, and reliable contactless health monitoring solutions suitable for continuous elderly care and home-based healthcare environments.},
        keywords = {Contactless health monitoring, elderly care, IoT, ESP32, vital signs, wireless healthcare.},
        month = {March},
        }