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  1. No Access

    Chapter

    Designing a Method of Data Transfer Using Dual Message Queue Brokers in an IoT Environment

    IoT devices rapidly increases, research is actively conducted to manage data transmitted from a large number of devices. Various services such as monitoring service requesting IoT sensor data and real...

    Hyun-Seong Lee, Seoung-Hyeon Lee… in Big Data, Cloud Computing, Data Science & … (2019)

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    Chapter and Conference Paper

    AMQP-Based Subscription Group Message Delivery System Design for Laboratory Safety System

    Laboratory safety management system is a system that uses the data collected from various sensor devices to detect risk situations and send risk alerts to the required devices. However, since the pre-existing...

    Hyun-seong Lee, Jae-gwang Lee, Jae-pil Lee… in Proceedings of the Sixth International Con… (2019)

  3. No Access

    Chapter and Conference Paper

    Design of Beacon-Based Positioning System Using RF and Sound Wave in Smartphone

    Along with development of IoT (Internet of Things), the importance of indoor location-based services is increases. Therefore, researches on beacon, which is widely used for indoor positioning, have been activ...

    Hyun-Seong Lee, Seoung-Hyeon Lee… in Advances in Computer Science and Ubiquitou… (2018)