Browsing by Author "Jovanov, Emil"
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- ItemBody Area Networks for ubiquitous healthcare applications: opportunities and challenges.(2011-12-14) Jovanov, Emil; Milenkovic, AleksandarBody Area Networks integrated into mHealth systems are becoming a mature technology with unprecedented opportunities for personalized health monitoring and management Potential applications include early detection of abnormal conditions supervised rehabilitation and wellness management Such integrated mHealth systems can provide patients with increased confidence and a better quality of life and promote healthy behavior and health awareness Automatic integration of collected information and user s inputs into research databases can provide medical community with opportunity to search for personalized trends and group patterns allowing insights into disease evolution the rehabilitation process and the effects of drug therapy A new generation of personalized monitoring systems will allow users to customize their systems and user interfaces and to interact with their social networks With emergence of first commercial body area network systems a number of system design issues are still to be resolved such as seamless integration of information and ad hoc interaction with ambient sensors and other networks to enable their wider acceptance In this paper we present state of technology discuss promising new trends opportunities and challenges of body area networks for ubiquitous health monitoring applications
- ItemInteroperability and security in wireless body area network infrastructures.(2007-02-06) Warren, Steve; Lebak, Jeffrey; Yao, Jianchu; Creekmore, Jonathan; Milenkovic, Aleksandar; Jovanov, EmilWireless body area networks WBANs and their supporting information infrastructures offer unprecedented opportunities to monitor state of health without constraining the activities of a wearer These mobile point of care systems are now realizable due to the convergence of technologies such as low power wireless communication standards plug and play device buses off the shelf development kits for low power microcontrollers handheld computers electronic medical records and the Internet To increase acceptance of personal monitoring technology while lowering equipment cost advances must be made in interoperability at both the system and device levels and security This paper presents an overview of WBAN infrastructure work in these areas currently underway in the Medical Component Design Laboratory at Kansas State University KSU and at the University of Alabama in Huntsville UAH KSU efforts include the development of wearable health status monitoring systems that utilize ISO IEEE 11073 Bluetooth Health Level 7 and OpenEMed WBAN efforts at UAH include the development of wearable activity and health monitors that incorporate ZigBee compliant wireless sensor platforms with hardware level encryption and the TinyOS development environment WBAN infrastructures are complex requiring many functional support elements To realize these infrastructures through collaborative efforts organizations such as KSU and UAH must define and utilize standard interfaces nomenclature and security approaches
- ItemIntroduction to the special section on M-Health: beyond seamless mobility and global wireless health-care connectivity.(2004-12-23) Istepanian, Robert; Jovanov, Emil; Zhang, Y T
- ItemA mobile system for assessment of physiological response to posture transitions.(2013-10-10) Jovanov, Emil; Milosevic, Mladen; Milenkovic, AleksandarPosture changes initiate a dynamic physiological response that can be used as an indicator of the overall health status We introduce an inconspicuous mobile wellness monitoring system imWell that continuously assesses the dynamic physiological response to posture transitions during activities of daily living imWell utilizes a Zephyr BioHarness 3 physiological monitor that continually reports heart activity and physical activity via Bluetooth to a personal device e g smartphone The personal device processes the reported activity data in real time to recognize posture transitions from the accelerometer data and to characterize dynamic heart response to posture changes It annotates logs and uploads the heart activity data to our mHealth server In this paper we present algorithms for detection of posture transitions and heart activity characterization during a sit to stand transition The proposed system was tested on seven healthy subjects performing a predefined protocol The total average and standard deviation for sit to stand transition time is 2 7 0 69 s resulting in the change of heart rate of 27 36 9 30 bpm from 63 3 9 02 bpm to 90 66 10 09 bpm
- ItemA wireless body area network of intelligent motion sensors for computer assisted physical rehabilitation.(2005-03-07) Jovanov, Emil; Milenkovic, Aleksandar; Otto, Chris; de Groen, Piet CBACKGROUND Recent technological advances in integrated circuits wireless communications and physiological sensing allow miniature lightweight ultra low power intelligent monitoring devices A number of these devices can be integrated into a Wireless Body Area Network WBAN a new enabling technology for health monitoring METHODS Using off the shelf wireless sensors we designed a prototype WBAN which features a standard ZigBee compliant radio and a common set of physiological kinetic and environmental sensors RESULTS We introduce a multi tier telemedicine system and describe how we optimized our prototype WBAN implementation for computer assisted physical rehabilitation applications and ambulatory monitoring The system performs real time analysis of sensors data provides guidance and feedback to the user and can generate warnings based on the user s state level of activity and environmental conditions In addition all recorded information can be transferred to medical servers via the Internet and seamlessly integrated into the user s electronic medical record and research databases CONCLUSION WBANs promise inexpensive unobtrusive and unsupervised ambulatory monitoring during normal daily activities for prolonged periods of time To make this technology ubiquitous and affordable a number of challenging issues should be resolved such as system design configuration and customization seamless integration standardization further utilization of common off the shelf components security and privacy and social issues
- ItemWireless Technology and System Integration in Body Area Networks for m-Health Applications.(2007-02-06) Jovanov, Emilm Health integrates mobile computing medical sensor and communications technologies for mobile health care applications Wireless body area networks WBANs of intelligent sensors represent an emerging technology for system integration with great potentials for unobtrusive ambulatory health monitoring during extended periods of time However system designers will have to resolve a number of issues such as severe limitations of sensor weight and size necessary to improve user s compliance sensor resource constraints intermittent availability of uplink connectivity reliability of transmission security and interoperability of different platforms We present current and emerging wireless technologies and developments in pervasive and mobile technologies that are vital for implementation of WBAN based monitors and m Health system integration We emphasize the problem of reliable system operation with extremely low power consumption and discontinuous connectivity which are typical for ambulatory monitoring