• 한국정보통신학회:학술대회논문집
• /
• 한국해양정보통신학회 2002년도 추계종합학술대회
• /
• pp.110-114
• /
• 2002

정보통신 국가표준에 있어서는 무엇보다 공공성이 중요하며, 국가표준의 주요목적은 국내의 정보통신서비스를 비롯한 각종 정보기술 관련 산업체 및 연구원들의 사기를 앙양시키고 효율적으로 정책을 수립하고 이를 공지하여 관련 산업체와 연구원 및 특허권자들의 권익을 보호해야만 한다. 따라서 본 연구에서는 현행 정보통신 표준화를 활성화시키기 위한 국내외의 연구소 및 정책을 비교분석하고 정책을 제안하고자 한다.

• ETRI Journal
• /
• 제36권6호
• /
• pp.968-978
• /
• 2014

Autonomous vehicle technology based on information technology and software will lead the automotive industry in the near future. Vehicle localization technology is a core expertise geared toward developing autonomous vehicles and will provide location information for control and decision. This paper proposes an effective vision-based localization technology to be applied to autonomous vehicles. In particular, the proposed technology makes use of numerical maps that are widely used in the field of geographic information systems and that have already been built in advance. Optimum vehicle ego-motion estimation and road marking feature extraction techniques are adopted and then combined by an extended Kalman filter and particle filter to make up the localization technology. The implementation results of this paper show remarkable results; namely, an 18 ms mean processing time and 10 cm location error. In addition, autonomous driving and parking are successfully completed with an unmanned vehicle within a $300m{\times}500m$ space.

• 대한안전경영과학회지
• /
• 제9권4호
• /
• pp.57-62
• /
• 2007

Aerial working platform is recently used broadly in heavy industry and construction field and also the utilization of it is growing. However, the raise of critical incident caused by unskilled operator is increased gradually. To reduce and prevent such incident, the training for operating is essential. It's not easy to cover the requirements for the training with real platform because of the high price of it, safety and weather condition. This paper proposes a simulator for the training based on virtual reality to give the training safely regardless to the weather condition and the simulator is deliverable in lower price than real one. The simulator proposed in this paper is available to be set according to the level of trainee's skill managing and be also applied for the design of general heavy equipment training simulator.

• 정보보호뉴스
• /
• 통권128호
• /
• pp.14-20
• /
• 2008

지난 4월 23-25일 3일간 태국 정부의 주최로 제7차 APEC 정보통신장관회의(The 7th APEC Ministerial Meeting on Telecommunications and Information Industry:TELMIN 7)가 방콕에서 개최됐다. 지난 1994년 APEC 정상회의 당시 우리나라의 제안으로 설립된 APEC 정보통신장관회의는 1995년 서울에서 1차 회의를 개최한 이후, 2-3년 주기로 총 6차례 회의를 진행, 아.태지역 통신분야 논의의 최고 구심점으로 자리매김했다. 특히 이번 제7차 APEC 장관회의는 '디지털 번영:도전을 성취로(Digital Prosperity:Turning Challenges into Achievement)'라는 주제로 ICT(Information Communication Technology) 기술 발전 및 안전한 이용환경 구축을 통해 경제성장을 달성하고자 하는 APEC 회원국의 정책방향을 담고 있다는 점에서 주목을 끌었다. 이번 제7차 APEC 정보통신장관회의의 세션별 주요 발표내용을 간략하게 정리하고, 특히 정보보호 분야 세션에서 발표된 내용들을 중점 소개하고자 한다.

• 기술혁신학회지
• /
• 제7권1호
• /
• pp.111-129
• /
• 2004

The issues on the interconnection of telecommunications network are recently prevailed in the IT industry. In this study, we classify the network interconnection system into two categories: two way-same price model and two way-different price model. The purpose of this paper is to analyze economic characteristics of optimal settlement system according to each model. One of the most important policy implications we derive through this study is that symmetry between enterprises is required for policy maker or regulatory agency to set an efficient settlement system under two way-same price model, but that symmetry is not necessarily required under two way-same price model.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2003년도 학술회의 논문집 정보 및 제어부문 B
• /
• pp.959-961
• /
• 2003

In this paper, we describe implemented DMAC (Direct Memory Access Controller) architecture on Altera's $Excalibur^{TM}$ that includes industry-standard $ARM922T^{TM}$ 32-bit RISC processor core operating at 200 MHz. We implemented DMAC based on AMBA (Advanced Micro-controller Bus Architecture) AHB (Advanced Micro-performance Bus) interface. Implemented DMAC has 8-channel and can extend supportable channel count according to user application. We used round-robin method for priority selection. Implemented DMAC supports data transfer between Memory-to-Memory, Memory-to-Peripheral and Peripheral-to-Memory. The max transfer count is 1024 per a time and it can support byte, half-word and word transfer according to AHB protocol (HSIZE signals). We implemented with VHDL and functional verification using $ModelSim^{TM}$. Then, we synthesized using $LeonardoSpectrum^{TM}$ with Altera $Excalibur^{TM}$ library. We did FPGA P&R and targeting using $Quartus^{TM}$. We can use implemented DMAC module at any system that needs high speed and broad bandwidth data transfers.

• Asia Marketing Journal
• /
• 제24권4호
• /
• pp.178-189
• /
• 2023

As the necessity of customer relationship management (CRM) increases, measuring the performance of CRM have been actively discussed. Customer equity (CE) is regarded as an appropriate indicator for evaluating the outcomes of marketing activities. There are three drivers of CE: brand, value, and relationship equity. This study aims to investigate the impact of three drivers on customer satisfaction. Market competition is an environmental factor that affects the effectiveness of CRM. This study divides target firms into leaders and followers. This study found that the differential impact of CE drivers on customer satisfaction depends on the firm's status (leader or follower). Specifically, the brand equity driver significantly impacts the leader firm. However, the impacts of value and relationship equity drivers are bigger for follower firms. The above results suggest that firms need to build CRM strategies that consider the competitive situation of the market and their position.

• ETRI Journal
• /
• 제45권4호
• /
• pp.594-602
• /
• 2023

Internet of things (IoT) is commonly employed to detect different kinds of diseases in the health sector. Systemic lupus erythematosus (SLE) is an autoimmune illness that occurs when the body's immune system attacks its own connective tissues and organs. Because of the complicated interconnections between illness trigger exposure levels across time, humans have trouble predicting SLE symptom severity levels. An effective automated machine learning model that intakes IoT data was created to forecast SLE symptoms to solve this issue. IoT has several advantages in the healthcare industry, including interoperability, information exchange, machine-to-machine networking, and data transmission. An SLE symptom-predicting machine learning model was designed by integrating the hybrid marine predator algorithm and atom search optimization with an artificial neural network. The network is trained by the Gene Expression Omnibus dataset as input, and the patients' data are used as input to predict symptoms. The experimental results demonstrate that the proposed model's accuracy is higher than state-of-the-art prediction models at approximately 99.70%.

• 디지털콘텐츠학회 논문지
• /
• 제19권7호
• /
• pp.1271-1279
• /
• 2018

전통적으로 독자 시장을 형성해 왔던 통신 업계에도 컴퓨터 통신으로 촉발된 디지털화의 바람이 몰아 닥쳤다. 통신업계에서 디지털화 또는 디지털 서비스라 함은 곧, 소프트웨어 정의 망의 지원을 받는 망 기능 가상화를 일컫는다. 통신업계의 디지털화는 기존 장비공급자와 서비스공급자라는 2원적 형태에서 전사회 구성원의 다원적 참여로 급변하고 있는 양상이다. 이 새로운 변화를 이해함에 있어서 전통적으로 그 변화 중심의 핵심에서 중추역할을 하여온 전통적 통신 장비 공급업자가 계속 그 역할을 할 것인가, 디지털화의 목표인 종단 간 디지털 서비스에 대해 얼마나 진행되고 있는 가를 살펴봄으로서 현재 진행 중인 디지털화를 파악하고자 한다.

• ETRI Journal
• /
• 제38권5호
• /
• pp.1019-1029
• /
• 2016

The probability hypothesis density (PHD) filter is an effective means to track multiple targets in that it avoids explicit data associations between the measurements and targets. However, the target birth intensity as a prior is assumed to be known before tracking in a traditional target-tracking algorithm; otherwise, the performance of a conventional PHD filter will decline sharply. Aiming at this problem, a novel target birth intensity scheme and an improved measurement-driven scheme are incorporated into the PHD filter. The target birth intensity estimation scheme, composed of both PHD pre-filter technology and a target velocity extent method, is introduced to recursively estimate the target birth intensity by using the latest measurements at each time step. Second, based on the improved measurement-driven scheme, the measurement set at each time step is divided into the survival target measurement set, birth target measurement set, and clutter set, and meanwhile, the survival and birth target measurement sets are used to update the survival and birth targets, respectively. Lastly, a Gaussian mixture implementation of the PHD filter is presented under a linear Gaussian model assumption. The results of numerical experiments demonstrate that the proposed approach can achieve a better performance in tracking systems with an unknown newborn target intensity.