• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.469-471
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• 2005

임베디드 Java 플랫폼은 다양한 하드웨어 및 운영체제에 적용되어야 하므로, 하드웨어에 종속적인 부분과 운영체제에 종속적인 부분이 적용되는 기기마다 가변적이다. Java 라이브러리의 경우 가상머신(VM: Virtual Machine)에 종속적으로 구현되며 네이티브 코드들로 상당부분 구현되기 때문에 다양한 VM과 결합하여 임베디드 Java 플랫폼을 구성할 경우 VM에 종속적인 부분을 가변 코드로 관리할 필요가 있다. 본 논문은 임베디드 Java플랫폼의 적용 속성을 고려하여 가변 코드를 관리하는 방법을 제안하고 이를 구현해 본다.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.05a
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• pp.187-189
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• 2007

늘어나는 사용자의 요구를 충족시키고, 차별화된 서비스를 제공하기 위해 산업 전반에 걸쳐 정보기술의 적용이 확대됨에 따라 임베디드 소프트웨어 제품의 활용이 급격히 증가되고 있다. 이에 따라 각 기업에서는 기존 자사 제품의 생산에서 시장 적시성과 고품질을 달성하기 위한 체계적인 임베디드 소프트웨어 개발에 대한 요구가 점차 증가하고 있으나 그에 따른 기술 및 인력의 부족으로 많은 어려움을 겪고 있는 실정이다. 본 논문에서는 이러한 문제 해결에 일조하기 위해 한국전자통신연구원에서 최근에 개발한 제품계열기반의 임베디드 시스템 개발 방법론의 개념, 프로세스 등을 제시하고자 한다.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06b
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• pp.129-133
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• 2007

임베디드SW에 대한 개발이 활발히 수행되고 다양한 플랫폼에서 다른 임베디드SW와 통합되고 제어하는 다양한 요구사항이 발생하고 있으나 HW와의 밀접한 관계 및 재사용성의 요구를 반영하고 있지 못하므로 제품계열 개념을 적용한 접근이 필요하다. 따라서 임베디드 시스템 수명주기 및 시스템, HW, SW간의 관계를 통해 임베디드SW 개발절차를 도출하며, 제품계열 개발방법론 중에서 마르미-EM, FORM, FAST 및 KobrA를 선정하고 도출된 임베디드SW 개발절차와 비교하여 각 개발방법론의 절차상의 차이점, 강점 및 보완 사항을 분석하고 방법론별 특징을 종합한다.

• Electronics and Telecommunications Trends
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• v.34 no.4
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• pp.23-31
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• 2019

Deep learning is a hot topic in both academic and industrial fields. Deep learning applications can be categorized into two areas. The first category involves applications such as Google Alpha Go using interfaces with human operators to run complicated inference engines in high-performance servers. The second category includes embedded applications for mobile Internet-of-Things devices, automotive vehicles, etc. Owing to the characteristics of the deployment environment, applications in the second category should be bounded by certain H/W and S/W restrictions depending on their running environment. For example, image recognition in an autonomous vehicle requires low latency, while that on a mobile device requires low power consumption. In this paper, we describe issues faced by embedded applications and review popular inference engines. We also introduce a project that is being development to satisfy the H/W and S/W requirements.

• Journal of Information Technology Services
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• v.8 no.3
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• pp.51-65
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• 2009

National qualification system for SW engineering is intended to be mechanisms to assure the competence of SW professionals. Qualification system for SW engineering can be categorized as national qualification, nationally certified private qualification, and private qualifications. In this paper, we present a summary report of needs analysis for new national qualification systems, based on the survey from human resource department managers of IT companies in IT service, package SW and embedded SW industry. The survey results show that SW qualification system is appropriate for evaluation and career management, but does not provide up-to-date information concerning the technology assessment and change. Based on the result form needs analysis, we suggest the SW specialist and embedded SW specialist as new licenses in national qualification system. In addition, we also propose SW quality management engineer, systems management engineer, IT Protect management engineer, network management engineer and SW architect engineer, as new nationally certified private qualifications.

• Proceedings of the KIPE Conference
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• 2010.07a
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• pp.77-78
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• 2010

As the maximum power operating point(MPOP) of photovoltaic(PV) power systems alters with changing atmospheric conditions, the efficiency of maximum power point tracking(MPPT) is important in PV power systems. Moreover, grid-connected PV system occurs some problems such as voltage inequality and harmonics. Therefore, this paper presents the results of a grid-connected PV system modeling by PSIM simulator and investigates the influence on the grid-connected PV system from aspect of power quality, i.e. voltage drop. This paper includes four MPPT algorithms; Perturbation & Observation(P&O), Improved P&O, Increment Conductance(Incond), Hysterisis simulated with irradiation changing.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.43 no.7 s.349
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• pp.38-49
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• 2006

In this paper, a novel concept based on embedded processor and reconfigurable logic is proposed for efficient manufacturing test and design verification. Unlike traditional gap between design verification and manufacturing test, proposed concept is to combine both design verification and manufacturing test. The semiconductor chip which is using the proposed concept is named "SwToC" and SwToC stands for System with Test On a Chip. SwToC has two main features. First, it has functional verification function on a chip and this function could be made by using embedded processor, reconfigurable logic and memory. Second, it has internal ATE on a chip and this feature also could be made by the same architecture. To evaluate the proposed SwToC, we have implemented SwToC using commercial FPGA device with embedded processor. Experimental results showed that the proposed chip is possible for real application and could have faster verification time than traditional simulation method. Moreover, test could be done using low cost ATE.

• Electronics and Telecommunications Trends
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• v.36 no.2
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• pp.56-64
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• 2021

Many computer vision algorithms are computationally expensive and require a lot of computing resources. Recently, owing to machine learning technology and high-performance embedded systems, vision processing applications, such as object detection, face recognition, and visual inspection, are widely used. However, on-devices need to use their resources to handle powerful vision works with low power consumption in heterogeneous environments. Consequently, global manufacturers are trying to lock many developers into their ecosystem, providing integrated low-power chips and dedicated vision libraries. Khronos Group-an international standard organization-has released the OpenVX standard for high-performance/low-power vision processing in heterogeneous on-device systems. This paper describes vision libraries for the embedded systems and presents the OpenVX standard along with related trends for on-device vision system.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.641-642
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• 2011

This paper presents method of constructing the embedded systems based on hardware-software codesign which is the important fields of $21^{st}$ information technology. First, we describe the classification and necessity of embedded systems, and we discuss the consideration and classification for constructing the embedded systems. Also, we discuss the embedded systems modeling. The proposed embedded systems based on hardware-software co-design is important gradually, we expect that it involve the many IT fields in the future.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.880-881
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• 2013

This paper present a method of constructing embedded system based on the hardware and software which is a center of 21th information technology. For the purpose of that, we discuss the embedded system classification and necessity also the main points which is the key when we constructing the embedded system. We discuss the embedded system modelling. The proposed hardware and software embedded system be able to contribute future advanced information technology upcoming.