• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.9
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• pp.1923-1930
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• 2012

'No-Automobile driving Day' is one of Special option of Automobile Insurance in Republic of Korea. It option is used a system for collect to automobile driving information. However, Its system gives discomfort to users of this system. A Discomfort of this system to users is the OBD device's(Personal Car Driving Check Device) installation. A frequent installation of this device provides this OBD device's breakage to the users of this system. In this paper, for a solve this problem, studied new system design to supplement the existing system using Smartphone and WPAN(Wireless Personal Area Network).

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2005.07a
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• pp.183-184
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• 2005

In this paper. a new small size Lateral Trench Electrode Power IGBT is proposed. The entire electrode of proposed LIGBT is placed in trench oxide. The forward blocking voltage of the proposed LIGBT is improved by 1.6 times with that of the conventional LIGBT. The forward blocking voltage of proposed LIGBT is 500V. At the same size. a increase of the forward blocking voltage of about 1.6 times relative to the conventional LIGBT is observed by using TMA-MEDICI which is used for analyzing device characteristics. Because the electrodes of the proposed device are formed in trench oxide. the electric field in the device are crowded to trench oxide. We observed that the characteristics of i the proposed device was improved by using TMA-MEDICI and that the fabrication of the proposed device is possible by using TMA-TSUPREM4.

• The Transactions of the Korea Information Processing Society
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• v.2 no.6
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• pp.815-822
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• 1995

In the conventional UNIX system, the all device driver realized in the kern el. Hence, whenever we want to add a new device driver or change the existin g device driver, the modification of kernel is unavoidable. Generally, it is very difficult to modify the kernel codes.As a method of overcoming this difficulty, a TTY device driver model of user-level is presented in this paper. The basic concept of this model is providing a dynamic reconfiguration of TTY device driver by realizing a user-level server process for TTY device driver. In order to verify the proper y of this model, a prototype of TTY device driver has been realized in the SunOS and Linux environment and evaluated its performance.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.170-171
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• 2015

At the present time it continues to be the smart device released has also been commercialization device accessories accordingly. Such accessories are getting great response to consumers in the form of an external device to a character commercialization design. However, these products are not useful in the functional aspects of using the external form of the device is concentrated only. This study documents the management app to give the game character acts on the application category grouping the ability to efficiently manage the smart device. Research method is to study the existing product released to find out how it works come from the smart device management side, The device app management features added to the game play will be produced based on them.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.7 no.7
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• pp.1483-1490
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• 2003

In existent industry spot, device administrators should be ever-ready for monitor and control of devices. Thus, it is inefficient because there are much human strength waste and time loss. To solve these problem, we develop a real time device management system based on wire and wireless internet. If any device brutes down, this system senses breakdown automatically and notify it to device administrators via mobile phones. Then the administrator does emergency measures for breakdown device though wire and wireless internet. For the purpose, we develop each local device control system. device management system, mobile system, and web system.

• Journal of the Korea Society of Computer and Information
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• v.23 no.9
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• pp.113-122
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• 2018

In this paper, IoT(Internet of things) technology, which is the core of the 4th industrial revolution, was applied to the study of reduction of consumption current. The IoT is a sensor that collects data, a sensor communication, a gateway that processes and stores the collected data. Data application of IoT technology is applied to smart home, smart city, healthcare, smart factory, etc. and it needs to be applied to various industrial fields. By sensing the location of the sensor device, the specific functions of the gateway and the platform are turned ON and OFF to reduce the consumption current of the equipment during the OFF period. When the sensor device accesses the gateway, the specific function of the gateway is turned ON and When the device is separated from the gateway, it senses the sensitivity of the wireless signal and automatically turns off the certain functions. As a resurt, it has reduced the consumption of current. In this paper, we propose a novel system for detecting the location of sensor devices by applying IoT technology. The system implementation is realized by software based, and defines the requirements for the implementation of the sensor device gateway. The gateway automatically detects the location, movement of the device and performs necessary functions. Finally verifies the automatic detection performance of the gateway according to the location of the device. It will contribute greatly to the development of the smart city and office.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.10a
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• pp.789-792
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• 2007

이 연구는 Sentaurus Device를 이용하여 여러 가지 캐리어 전송 모델에 대한 반도체의 구조적, 전기적, 열적 작용의 변화를 조절함으로써 공정과 설계를 보다 쉽게 개발하는데 도움이 되리라 본다. 즉, 여러 가지 캐리어 전송 모델들은 밀도구배 모델을 기반으로 확산작용과 유체역학, Monto Carlo 전송 모델로 각기 분류할 수 있다. 각각의 모델들은 필수적인 요소에 의존하여 서로 다른 형태로 나타내어 질 수 있다. 이 연구에서는 Sentaurus Device simulation을 통하여 여러 가지 형태의 캐리어 전송 모델의 변화를 시각적으로 관찰할 것이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.10a
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• pp.196-199
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• 2007

In this paper, we studied a ZnO-based film bulk acoustic wave resonator (FBAR) device fabricated on top of a novel multi-layered Bragg reflector with chromium adhesion layers $(0.03{\mu}m-thick)$ inserted. The performance of FBAR device could be significantly improved using proper thermal treatments. At ${\sim}2.75$ GHz, we could achieve good return loss and quality factor (Q). This device fabrication technique will be useful for the future mobile WiMAX applications.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.24 no.12
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• pp.1654-1661
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• 2020

Internet of Things(IoT) technology can remotely collect and control a sensing information of device by attaching a small communication device to equipment that does not support communication. Low-Power Wide-Area Network (LPWAN), a low-power, long-distance communication technology, was proposed to support IoT technology, and Long Range(LoRa) is representative. Various systems, including network device, can collect and control the status information of device in real time through remote access. However, when a network failure occurs, remote access and status monitoring are impossible unless there is a separate additional network. To overcome this problem, in this paper, we propose an independent remote device management system that can be easily attached to device, which monitors and controls equipment remotely using an independent network. We will design and implement the proposed system, via which we will show its practicality and expandability.

• Journal of the Korea Society of Computer and Information
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• v.14 no.12
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• pp.25-32
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• 2009

This paper proposes the construction of intelligent home network system using Power Line Communication(PLC) technique, which allows for UPnP bridge remote control and monitoring based on TCP/IP. Also, the communication for control module inside intelligent home network systems is designed with Simple Control Protocol (SCP) in which each device is connected to be controlled independently. When new UPnP device is additionally installed in intelligent home network systems, it is monitored through UPnP bridges based on its registered UPnP device information. The device control based on PLC and implementation of each UPnP device are effectively managed by using TCP/IP remote control and it's provided fundamental functions to monitor various device information in the home network.