Browsing by Author "Chen, Li-Kuan"

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CampusTalk: IoT Devices and Their Interesting Features on Campus Applications
(2018-01-01)
Lin, Yi-Bing
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Chen, Li-Kuan
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Shieh, Min-Zheng
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Lin, Yun-Wei
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Yen, Tai-Hsiang
Internet of Things (IoT) allows interactive learning of students by inspiring their innovation everywhere on the campus. This paper proposes CampusTalk that provides convenient access to cyber and physical devices through the web technology. In this way, the campus applications can be accessed anywhere in the world through any computing device with a display and a browser without installing any mobile app. CampusTalk unifies the concepts of automatic creation of "mirror device features'' (simulated counterpart) and talkPal device features, which are nicely demonstrated through several applications on campus. The core application of CampusTalk is SmartPhoneTalk that allows other applications to be accessed by students through their smartphones without installing any mobile apps. We describe three CampusTalk applications, including MusicTalk, PingPongTalk, and SkeletonTalk, to demonstrate cyber and physical interaction with SmartPhoneTalk. After the IoT devices of these applications have been developed and are accommodated in CampusTalk, the students can use the CampusTalk GUI to connect them with various combinations for innovative applications without extra programming effort.
FrameTalk: Human and Picture Frame Interaction through the IoT Technology
(2019-10-01)
Lai, Wen-Shu
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Lin, Yi-Bing
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Hsiao, Chung-Yun
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Chen, Li-Kuan
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Wu, Chao-Fan
The concept of frame plays a significant role in art design. However, traditional picture frames do not offer human interaction. To create a new dimension of graphic artwork demonstration, we utilize the Internet of Things (IoT) technology to develop human and digital frame interaction. Specifically, this paper uses IoTtalk, an application-layer IoT device management platform, to quickly establish connections and meaningful interactions between IoT devices. The interaction between human and frame is accomplished by implementing an output device of IoTtalk called FrameTalk, which allows the input devices to control the dynamic graphics on a digital frame. The FrameTalk device can be exhibited in specific frame hardware or the screen of any computing device. We illustrate the functional block diagram of the FrameTalk device and its default applications. Then we demonstrate two FrameTalk application examples. The first example is CalligraphyTalk, where an audience can interact with the frame to write Chinese poems. The second example is PortraitGuess that allows an audience to play the historical figures portrait painting guess game by the frame. We measure the delays between the smartphone and the FrameTalk device, and develop both analytic and simulation models to investigate the user experience of the FrameTalk applications. Our study indicates that good user experience can be achieved in FrameTalk.
MorSocket: An Expandable IoT-Based Smart Socket System
(2018-01-01)
Lin, Yi-Bing
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Huang, Chun-Ming
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Chen, Li-Kuan
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Sung, Gang-Neng
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Yang, Chih-Chyau
Due to the flourishing development of the Internet of Things (IoT) technology, many smart home applications have become commercially available. One of the most popular applications is remotely controlled smart sockets. Most commercial smart socket products allow the user to control single-sockets. This paper proposes a smart socket system called MorSocket ("more sockets") that allows the user to control multiple separated sockets within a control webpage. These sockets share the same wireless communication module and therefore the hardware cost of MorSocket is lower than the single-socket solutions. Furthermore, by integrating MorSensor with an IoT management platform called IoTtalk, MorSocket can be automatically controlled by arbitrary sensors for temperature, humidity, UV, CO2, and so on. Such configuration is easily and flexibly set up through the IoTtalk GUI without extra programming efforts. We also develop the MorSensor system that provides multiple configurable sensors tailored to control MorSocket through simple plug-and-play. Then we investigate the user tolerance delay between when the user presses the on/off button and when he/she presses the next time if MorSocket does not respond. The user experience is poor if the MorSocket access delay is longer than the tolerance delay, and the user may keep pressing the button. We conduct measurements, analytic modeling, and simulation experiments to study the impact of the user tolerance delay. Our study observes the quick response of MorSocket, which results in excellent user experience.