• Journal of Internet of Things and Convergence
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• v.10 no.5
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• pp.133-138
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• 2024

SSD SSD are rapidly replacing HDD as the storage device of choice for modern computer systems due to their high speed and reliability. Since these SSD are used in large quantities in enterprise environments, the LED blinking method is used to check the status of each SSD. This method controls the blinking rate of the LEDs based on the behavior and status of the SSD. The traditional method of using LED in SSD simply controls the blinking speed and time of the LED to indicate power on, data transfer, error, etc. However, in recent years, various studies have been conducted to transmit data using the color and blinking of LED. In this paper, we propose a new communication method that uses the LED blinking of SSD to transmit signals according to a certain rule. In the proposed method, the signals are classified into numeric and character systems according to the duration of the on LED signal, and various information systems are designed by combining the classified signals. In addition, a protocol is designed to transmit these combined signals, and a method is designed to display the transmitted signals in an intuitively identifiable representation at the receiving end of the enclosure. This approach is expected to free up additional communication channels of existing SSD and increase the performance and efficiency of the system.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.547-552
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• 2008

Human and robot will have closer relation in the future, and we can expect that the interaction between human and robot will be more intense. To take the advantage of people's innate ability of communication, researchers concentrated on the facial expression so far. But for the robot to express emotional intensity, other modalities such as gesture, movement, sound, color are also needed. This paper suggests that the intensity of emotion can be expressed with color and blinking so that it is possible to apply the result to LED. Color and emotion definitely have relation, however, the previous results are difficult to implement due to the lack of quantitative data. In this paper, we determined color and blinking period to express the 6 basic emotions (anger, sadness, disgust, surprise, happiness, fear). It is implemented on avatar and the intensities of emotions are evaluated through survey. We figured out that the color and blinking helped to express the intensity of emotion for sadness, disgust, anger. For fear, happiness, surprise, the color and blinking didn't play an important role; however, we may improve them by adjusting the color or blinking.