Browsing by Author "Chih, Chang-Yen"

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EasyConnect: A Management System for IoT Devices and Its Applications for Interactive Design and Art
(2015-12)
Lin, Yi-Bing
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Lin, Yun-Wei
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Chih, Chang-Yen
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Li, Tzu-Yi
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Tai, Chia-Chun
Many Internet of Things (IoT) technologies have been used in applications for money flow, logistics flow, people flow, interactive art design, and so on. To manage these increasing disparate devices and connectivity options, ETSI has specified end-to-end machine-to-machine (M2M) system architecture for IoT applications. Based on this architecture, we develop an IoT EasyConnect system to manage IoT devices. In our approach, an IoT device is characterized by its "features" (e.g., temperature, vibration, and display) that are manipulated by the network applications. If a network application handles the individual device features independently, then we can write a software module for each device feature, and the network application can be simply constructed by including these brick-like device feature modules. Based on the concept of device feature, brick-like software modules can provide simple and efficient mechanism to develop IoT device applications and interactions.
IoTtalk: A Management Platform for Reconfigurable Sensor Devices
(2017-10-01)
Lin, Yi-Bing
;
Lin, Yun-Wei
;
Huang, Chun-Ming
;
Chih, Chang-Yen
;
Lin, Phone
IoTtalk is a platform for Internet of Things (IoT) device interaction, which nicely integrates a reconfigurable multi-sensor device called MorSensor with the proposed IoT management platform in the network domain. The sensors can be dynamically plugged in/out of a MorSensor device without being turned off, and IoTtalk automatically generates/reuses the application software for these sensors. We propose a dynamic ranging concept that automatically specifies the value range of a sensor so that it can send "meaningful" data to any connected output IoT device. Therefore, a MorSensor device can "talk" to other IoT devices, such as a light bulb or an electric fan. We also show that IoTtalk is a simple yet almost free solution for automatic sensor calibration. Finally, we illustrate that IoTtalk is a powerful tool for developing interactive science experiments.