• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2008년도 학술대회 2부
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• pp.456-459
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• 2008

현재는 CE 와 PC 를 중심으로 한 디지털 컨버전스의 시대이지만, 그에 반대급부로 많은 제품군의 다양화가 동시에 이루어지고 있다. 각 제품들은 독립적으로 기능을 수행하고 있지만, 유비쿼터스, 홈 네트워크의 개념이 부각되며 모든 제품들은 추후 네트워크상에 연결되게 될 것이며, 기기와 기기간의 연결을 통한 사용에 대한 시장의 요구가 지배적으로 부각될 것이다. 이러한 추세로 볼 때, 제품의 다양화는 결국 수 많은 경우의 수를 가지는 연결형태를 낳을 수 밖에 없으며 제품의 다양화에 따른 수 많은 연결형태에 대한 정의와 제어구조가 필요하다. 이에 더불어 다양한 제품들을 네트워크 상에서 유기적으로 연결하여 사용할 수 있는 다양한 디자인 방법론이 제시되어 왔지만, 실제 사용자의 사용행태 및 각 기기가 가지고 있는 기능적인 특정을 반영하는 기준이 정립되어 있지 않은 경우가 많다. 본 논문에서는 이러한 많은 경우의 수의 연결형태를 구분하고, 제어구조를 확립하기 위한 기기간 연결성디자인방법론을 제시하고 있다. 연결성디자인 가이드라인은 폭 넓은 기기간 연결을 제공하여야 하며, 여러 기기간의 동시제어(3-box 모델)에 대한 고려도 있어야 한다. 연결성디자인의 가이드라인을 제시하기 위해 우리는 사용자의 제품경험단계를 연결, 설정, 사용, 해제의 4 단계로 나눔으로써 수 많은 경우의 수의 연결형태의 구분에 대한 초기적인 정의를 하였다. 이러한 초기적인 정의를 바탕으로, 세부적인 연결형태의 구분을 위해 본 논문에서는 각 사용자 경험단계별 연결형태의 기준을 제시한다.

• Asia pacific journal of information systems
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• 제33권3호
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• pp.831-862
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• 2023

The rapid adoption of smartphones and tablets among employees has recently forced organizations to proactively embrace bring your own device (BYOD). The situation of COVID-19 makes the concept of BYOD even paramount. Allowing employees to bring their own mobile devices to the workplace has helped companies realize productivity gains and cost benefits. However, BYOD has also blurred the boundaries between work and personal life, thereby creating a stressful environment for employees (Doargajudbur and Hosanoo, 2023). This study explores the relationships between several BYOD attributes and investigates the effects of these attributes on work-to-life conflict. It contributes by introducing workplace connectivity after hours as a new dimension of BYOD attribute to influence work-to-life conflict. Based on boundary theory, a theoretical model is developed and tested with an online survey. The results reveal that flexibility and workplace connectivity after hours positively influence productivity, and flexibility helps to relieve instead of increase work overload. Meanwhile, a higher level of flexibility and productivity can help reduce work-to-life conflict, and a higher level of work overload induces a higher level of work-to-life conflict.

• International Journal of Internet, Broadcasting and Communication
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• 제14권1호
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• pp.25-30
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• 2022

Since Tim Berners-Lee introduced the idea of the web to the world in the late 1980s, the way information is produced, accessed and used has been constantly changing. This was once again an era of upheaval after Apple's Steve Jobs introduced the smartphone to the world in the mid-2000s. Before the advent of smart devices, web browsing was mainly done using desktops. After the advent of this device, the era of solving almost all human needs with a small PC in the palm of your hand has arrived. The necessity of seamless connectivity between devices, which are constantly emerging and evolving, asks our attention more than ever. In this study, we will discuss a case of design and development of a national open access website, which is optimized for dynamic online user behaviors with diverse devices. Our goal is to provide one true web for people to use in their environment. Device makers need to provide products identical to the desktop environment as much as possible. Service providers should also provide services optimized for each device in hyper-connected environments. Providing a web, optimized for user's online context, will eventually result in a sustainable user experience.

• 한국정밀공학회지
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• 제18권5호
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• pp.29-33
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• 2001

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권3호
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• pp.991-1013
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• 2020

E-health services have provided interoperability between personal health devices in personal area network, based the ISO/IEEE 11073 standard. In the healthcare system, the manager handles most agents concurrently through wireless communication. However, due to the distance limitation and the increased number of agents, it may be difficult to provide continuous connectivity. Recently, body area devices have been equipped with various applicable agents, which can even handle agents on behalf of the manager. A BAD may act as an intermediary device to increase system efficiency and performance. In this study, a device called "proxy", which can be installed as software on BAD devices, is proposed. The data measured by an agent can be sent to the proxy first, and subsequently be sent to the manager again. Agents and the manager are not aware of the proxy existence and work normally without the proxy. Furthermore, a new smart proxy and modified manager are proposed. The smart proxy acts as one agent handling measurement data from several agents, which can transmit a significant amount of data at once. The proxy and smart proxy maintain compatibility with existing devices that conform to the 20601 standard. The proposed schemes are verified and the complexities of devices are analyzed. The analysis shows no significant difference among the proxy, smart proxy, and manager. Simulations exhibit that the proposed schemes can improve the system performance.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 춘계학술대회
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• pp.127-130
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• 2017

최근 발전되고 있는 정보통신 IT기술은 자동차 시장에도 큰 영향을 미치며 발전하고 있다. 근래에는 운전자의 안전성과 편의성을 위해 IT 기술이 접목된 장치들이 장착 되고 있고 Smartphone의 확산과 더불어 더욱 발전하고 있다. 이러한 변화에 맞춰 Smartphone과 차량이 연동 가능한 System 개발이 필요하다. 본 논문에서는 자동차 회사가 제공하는 자동차 연결 service를 분석하고 사용자의 요구에 따라 차량 내 대부분의 Smart Device 응용 Program을 지원하고 제어 할 수 있는 향상 된 System을 구현했다. 또한 운전 규정을 만족시키지 못하는 응용 Program을 제한 할 수 있는 Program을 구현하고 향후 회사의 연결 System에 적용 할 수 있는 Scenario를 제안하고자 한다.

• 한국정밀공학회지
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• 제28권4호
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• pp.436-445
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• 2011

As automation systems become intelligent and autonomous for productibility, industrial networks (fieldbuses) and network-based devices are essential components of intelligent manufacturing systems. However, there are obstacles for the wide acceptance of the network-based devices such as smart sensor and network-based actuator. First, there exist numerous fieldbus protocols that a network-based device should be able to support. Second, the whole network-based device has to be replaced when only the sensor of the module fails. In order to overcome these obstacles, a smart sensor/actuator is implemented as two units; one responsible for network communication and the other for sensor/actuator operations using IEEE 1451.0 standard. This paper presents a structure of the 1451.0-based smart sensor with multiple connectivity function designed by CANopen.

• 정보처리학회논문지A
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• 제17A권3호
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• pp.137-144
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• 2010

최근 모바일 장치 시장이 급격히 성장하면서 모바일 장치의 기능성 또한 빠르게 발전하고 있다. 소비자는 모든 환경에서 이기종 모바일 장치간 데이터 전송 또는 무선 인터넷을 통한 멀티미디어 데이터 전송이 가능하기를 원한다. 이와 더불어, 단일 모바일 장치가 블루투스, 와이파이(Wi-Fi), W-USB, NFC와 같은 다양한 connectivity 기술을 채용하는 경향도 보인다. 이와 같은 시장의 흐름에 따라 이기종간 association 기술의 중요성이 점차 부각되고 있다. 본 논문은 기존 NFC handover 프로토콜을 확장하여 W-USB 기술의 NFC association을 지원하는 방법을 다룬다. 또, W-USB 기술의 NFC association 표준과 NFC handover 프로토콜 간의 차이점을 설명하고 기존 NFC handover 프로토콜을 확장하여 이를 해결할 수 있는 방법을 제시한다. 마지막으로 본 논문은 W-USB handover 프로토콜 지원을 위한 NFC 시스템 구현에 대해 기술한다.

• ETRI Journal
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• 제37권2호
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• pp.348-358
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• 2015

Mobile devices have been widespread and become very popular with connectivity to the Internet, and a lot of desktop PC applications are now aggressively ported to them. Unfortunately, mobile devices are often vulnerable to malicious attacks due to their common usage and connectivity to the Internet. Therefore, the demands on the development of mobile security systems increase in accordance with advances in mobile computing. However, it is very hard to run a security program on a mobile device all of the time due the device's limited computational power and battery life. To overcome these problems, we propose a novel mobile security scheme that migrates heavy computations on mobile devices to cloud servers. An efficient data transmission scheme for reducing data traffic between devices and servers over networks is introduced. We have evaluated the proposed scheme with a mobile device in a cloud environment, whereby it achieved a maximum speedup of 13.4 compared to a traditional algorithm.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2235-2239
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• 2003

The aim of this research is to study and develop enabling technologies for home healthcare device with ubiquitous network. The motivation of this paper is to enable healthcare in home, to development the device for smart home health care. To achieve the aim, we must develop the prototype platform based on home gateways, distributed context user interface based on UPnP and support for information sharing with high speed power line communication and mobile infra-structures. And IPv6 is the base technology of this platform. In this paper, we concern that physical health, mental health and medical emergencies is all of home healthcare. With the smart device, we evaluate the connectivity, automatic information extraction and private data exchange and event driven message. The result of this paper is demonstration of smart device for ubiquitous communication in a healthcare application such as patient monitoring device and several information services. In conclusion, home healthcare will support more healthy and easy living for a human.