• Title/Summary/Keyword: Device identification

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Improved Hot data verification considering the continuity and frequency of data update requests (데이터 갱신요청의 연속성과 빈도를 고려한 개선된 핫 데이터 검증기법)

  • Lee, Seungwoo
    • Journal of Internet of Things and Convergence
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    • v.8 no.5
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    • pp.33-39
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    • 2022
  • A storage device used in the mobile computing field should have low power, light weight, durability, etc., and should be able to effectively store and manage large-capacity data generated by users. NAND flash memory is mainly used as a storage device in the field of mobile computing. Due to the structural characteristics of NAND flash memory, it is impossible to overwrite in place when a data update request is made, so it can be solved by accurately separating requests that frequently request data update and requests that do not, and storing and managing them in each block. The classification method for such a data update request is called a hot data identification method, and various studies have been conducted at present. This paper continuously records the occurrence of data update requests using a counting filter for more accurate hot data validation, and also verifies hot data by considering how often the requested update requests occur during a specific time.

A Device-Independent and Cost-Effective Forging Work-in-Process Control System (단말기 독립성과 비용의 효율성 제공을 위한 단조 재공 관리 시스템)

  • Jeong, Dong-Won
    • The KIPS Transactions:PartD
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    • v.19D no.3
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    • pp.221-228
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    • 2012
  • This paper proposes a new forging work-in-process control system that guarantees independency of a specific device and provides cost-effectiveness. Until now, much research has been studied on improving the process productivity through efficient work-in-process or inventory controls. Especially, incorporating various IT technologies such as barcode, RFID, and image recognition has been done. However, those approaches cause many problems due to the characteristics of the forging work-in-process control environment. To overcome the limitations of the existing approaches, this paper proposes a novel forging work-in-process control system. The proposed system in this paper identifies and precisely manages positions of objects by using GPS information of smart mobile devices. Therefore, identification tags as well as specific devices for reading the tags do not been required. It resolves the problems of the previous approaches and enhances the productivity of the overall forging work-in-process control process.

Method of Using Disease in Television Drama (인기 TV 드라마에서 질병을 활용하는 방법)

  • Roh, Dong-Ryul
    • The Journal of the Korea Contents Association
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    • v.17 no.8
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    • pp.351-365
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    • 2017
  • Illness has long been an important plot device in Korean dramas. In earlier years, the device typically was supposed to be in the form of a terminal bodily disease occurring for the female main character toward the end of the story. On the other hand, the latest trend is to situate a mental illness for the male lead character at the earlier part, and use it as a tool to build characters, construct causal relations and set the intense tone for the overall story. The mental illness as a plot device helps to provide a series of reversals, revelations and turnarounds, giving viewers a stronger sense of intensity, empathy and identification. While the illness used to play the role of a deus ex machina to make a big emotional finish, the latest adoption of the mental illness as a main plot device has enhanced the flexibility of the plot and the effect of versimilitude in dramas. These noticeable changes make one suspect that the focus of Korea's drama contents might have already begun to grow out of the conventional soap operas into different genres.

Improving the QoS using the Modulation and Coding Selection scheme by temperature characteristic of LED in the LED-ID system (LED-ID 시스템에서 LED의 온도 특성에 따른 선택적 변조 및 부호화를 통한 QoS 향상 기법 연구)

  • Lee, Kyu-Jin;Seo, Hyo-Duck;Han, Doo-Hee;Lee, Kye-San
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.12 no.1
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    • pp.66-74
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    • 2013
  • This paper introduces the improvement of QoS to compensate the decreasing LED performance by temperature characteristic in the LED-ID communication system. LED does not only use as a lighting device, but also uses as a communication device. The conventional system is transmitted by RGB of LED following the mixture color ratio, which determined the color of lighting, and the BER performance of each RGB signals. However, when the LED used consistently, it has occurred the heat temperature. As a result, LED is degraded the performance by increased temperature each device. To solve this problem, we proposed the adaptive modulation and coding scheme by temperature of device to improve the performance of system and satisfied the QoS in the LED-ID system.

Development of wearable device with smart key function and convergence of personal bio-certification and technology using ECG signal (심전도 신호를 이용한 개인 바이오인증 기술 융합과 smart key 기능이 탑재된 wearable device 개발)

  • Bang, Gul-Won
    • Journal of Digital Convergence
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    • v.20 no.5
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    • pp.637-642
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    • 2022
  • Self-authentication technology using electrocardiogram (ECG) signals is drawing attention as a self-authentication technology that can replace existing bio-authentication. A device that recognizes a digital electronic key can be mounted on a vehicle to wirelessly exchange data with a car, and a function that can lock or unlock a car door or start a car by using a smartphone can be controlled through a smartphone. However, smart keys are vulnerable to security, so smart keys applied with bio-authentication technology were studied to solve this problem and provide driver convenience. A personal authentication algorithm using electrocardiogram was mounted on a watch-type wearable device to authenticate bio, and when personal authentication was completed, it could function as a smart key of a car. The certification rate was 95 per cent achieved. Drivers do not need to have a smart key, and they propose a smart key as an alternative that can safely protect it from loss and hacking. Smart keys using personal authentication technology using electrocardiogram can be applied to various fields through personal authentication and will study methods that can be applied to identification devices using electrocardiogram in the future.

Union and Division using Technique in Fingerprint Recognition Identification System

  • Park, Byung-Jun;Park, Jong-Min;Lee, Jung-Oh
    • Journal of information and communication convergence engineering
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    • v.5 no.2
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    • pp.140-143
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    • 2007
  • Fingerprint Recognition System is made up of Off-line treatment and On-line treatment; the one is registering all the information of there trieving features which are retrieved in the digitalized fingerprint getting out of the analog fingerprint through the fingerprint acquisition device and the other is the treatment making the decision whether the users are approved to be accessed to the system or not with matching them with the fingerprint features which are retrieved and database from the input fingerprint when the users are approaching the system to use. In matching between On-line and Off-line treatment, the most important thing is which features we are going to use as the standard. Therefore, we have been using "Delta" and "Core" as this standard until now, but there might have been some deficits not to exist in every person when we set them up as the standards. In order to handle the users who do not have those features, we are still using the matching method which enables us to make up of the spanning tree or the triangulation with the relations of the spanned feature. However, there are some overheads of the time on these methods and it is not sure whether they make the correct matching or not. In this paper, introduces a new data structure, called Union and Division, representing binary fingerprint image. Minutiae detecting procedure using Union and Division takes, on the average, 32% of the consuming time taken by a minutiae detecting procedure without using Union and Division.

The Research of Security Vulnerabilities of Smartphone (스마트폰 보안 취약 요소에 따른 분석 연구)

  • Choi, Hee Sik;Cho, Yang Hyun;Joo, Heon Sik
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.9 no.3
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    • pp.119-127
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    • 2013
  • The merits of Smartphone are portability, convenience and especially a lot of information can be stored in the device. Especially in Smartphone, users can install programs that cannot install to normal cell phone and users can use many different services through these Smartphone programs. Also Smartphone can connect to Internet through network, so it can access information anytime, anywhere easily. Security of personal information and variety of information which stored in Smartphone are in risk. In Chapter 2 of thesis, it will discuss the definition and features of the Smartphone and market trends. In Chapter 3 of thesis, it will discuss security vulnerabilities of Smartphone and it will analyze and research security vulnerabilities of Smartphone in Chapter 4. In conclusion, it will check users' identification twice in useful application especially application that relate to finance and mobile payment. By checking users' identification several times, it will help to defend from security threats. Users can use Smartphone safely and convenience by know how to prevent from mobile hacking for personal and private information. the quality of APIs matching by the clustering and hierarchical relationships mechanism.

Literature Review of Clinical Studies for the Relationship between Ultrasonographic Examination and Syndrome Differentiation Classification in Chinese Medicine (초음파영상검사와 한의변증분류와의 관계와 관련된 중의학 임상연구에 대한 문헌고찰)

  • Hwang, Ji Hye;Ko, Dongkun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.32 no.4
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    • pp.217-225
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    • 2018
  • This study was to investigate the relationship between ultrasonographic examination and pattern identification classification on cinical studies in chinese medicine. We searched clinical studies related correlation between ultrasonographic examination and pattern identification classification in chinese medicine, that published from 2013 to 2016 in China National Knowledge Infrastructure (CNKI) databases by keywords, 'ultrasound(超?)', 'chinese medicine(中?)', 'syndrome differentiation (辨?)'. Seventeen studies were found. There were 7 studies of gynecological diseases including polycystic ovary syndrome and uterine myoma, 5 studies of fatty liver, 3 studies of arthritis, and 1 studie of thyroid nodule and lymphadenopathy respectively. As a result, ii is thought that there was a certain degree of correlation between the change of the ultrasonographic image and the pathological types according to traditional chinese medicine (TCM) syndrome differentiation and ultrasonographic examination could be used as secondary means for the TCM syndrome differentiation classification. In conclusion, by using ultrasonograph device in a medicinal way of TCM and traditional korean medicine (TKM), it is thought that more detailed and accurate diagnosis and treatment are possible and the evidence for reasonableness of syndrome differentiation in TCM and TKM its validity can be secured.

A Tele-rehabilitation System with an Automated Pegboard Utilizing Radio Frequency Identification

  • Jeong, Da-Young;Ryu, Mun-Ho;Yang, Yoon-Seok;Kim, Nam-Gyun;Kim, Seong-Hyun
    • International Journal of Contents
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    • v.6 no.4
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    • pp.8-13
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    • 2010
  • Due to the expense of health care and the need to contain costs, many stroke patients are discharged from hospitals while still in an impaired condition. Using Tele-rehabilitation, these patients can receive rehabilitation services remotely. A pegboard is a conventional rehabilitation therapeutic device that integrates cognition, sensation and hand motor function. This study proposes a Tele-rehabilitation content with automated pegboard and shows its functional feasibility. The evaluation of the pegboard session was automated with RFID (radio frequency identification), and a 16-hole pegboard was rapid-prototyped. After a pegboard session is completed, the session result is uploaded to a server automatically for viewing on a web browser by a remote therapist. The therapist can also send messages to remote patients to encourage them or to manage the rehabilitation process.

Development of Harmful Contents Detection Tool based on Execution Event Feature Analysis for Android Devices (안드로이드 단말에서의 실행 이벤트 특징 분석 기반 유해 콘텐츠 탐지 도구 개발)

  • Na, Seung Jae;Seo, Chang Wook;Kim, Min Cheol;Lee, Hyung-Woo;Jeong, Chi Yoon;Han, Seungwan
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2015.01a
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    • pp.73-76
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    • 2015
  • 최근 스마트 단말을 통한 유해 콘텐츠의 보급이 확산되면서 스마트 단말에서 유해 콘텐츠를 차단하기 위한 소프트웨어의 필요성이 증가하고 있다. 이에 본 논문에서는 안드로이드 기반 스마트 단말에서 실행 이벤트의 분석을 통하여 유해 콘텐츠를 탐지 할 수 있는 방법을 제안한다. 본 논문에서는 안드로이드기반 스마트 단말에서 스트리밍 서비스가 실행되는 구조 및 관련 실행 이벤트들의 연관성을 분석하였으며, 분석 결과를 토대로 스마트 단말에서 유해 콘텐츠의 실행 여부를 판단할 수 있는 소프트웨어를 개발하였다.

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