Browsing by Author "Yang, Chih-Chyau"

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MorSocket: An Expandable IoT-Based Smart Socket System
(2018-01-01)
Lin, Yi-Bing
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Huang, Chun-Ming
;
Chen, Li-Kuan
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Sung, Gang-Neng
;
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.
Multi-layer planar micro-coils chip as actuators and heaters for biological applications
(2012)
Chen, Chen-Chia
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Hsu, Shih-Hsun
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Sang, Chen-Hsiang
;
Yang, Chih-Chyau
;
Wu, Chien-Ming
In this paper, a multi-functional of multi-layer planar micro-coils chip is demonstrated to play as actuators and heaters. For playing as actuators, the micro-coil generate local magnetic field with applied current of 15 mA to quickly manipulated magnetic beads to center of micro-coil within one minute. For functioning as heaters, the micro-coil heater can be quickly heated up to denatured temperature of 95 degrees C with input power of 50.5 mW, and its heating and cooling rate are 19.7 and 11.8 degrees C/s, respectively. For the typical 25 polymerase chain reaction (PCR) cycles, it took only 770 seconds. To further shrink and optimize the multi-layer planar micro-coils chip can be possibly used to manipulate single cell with magnetic beads to specific region and analyze its gene sequence by using single cell PCR technique.