• Title/Summary/Keyword: Digital Architecture

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A Study on the 'Level of Information' in BIM-based Design Process (BIM 기반 설계프로세스의 단계별 정보 수준에 관한 연구)

  • Koh, In-Lyong;Kim, Myoung-Keun;Min, Young-Gi;Chung, Tae-Seung
    • Journal of The Korean Digital Architecture Interior Association
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    • v.12 no.3
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    • pp.111-117
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    • 2012
  • The study presents the way to maximize the functionality and the effectiveness of the BIM model, and the type of information used in the overall process of construction projects. If the designing process is the generator of architecture information, then the step-by-step BIM model created in the process is the container for formation and property information. BIM written rules and methods are proposed in order for the architectural BIM model structured in the early stages of designing to go through a process of review and collaboration, and to be seamlessly linked to the basic designing steps. Accordingly, the BIM model construction and operation strategy suggested will substantially reduce the work of designing, structuring, and collaborating, that will be shared and linked.

A VLSI architecture for the multi-dimensional digital filter (다차원 디지탈 필터의 VLSI 구조)

  • Jeong, Jae-Gil;Kim, Yong-Hoh
    • The Journal of Natural Sciences
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    • v.8 no.2
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    • pp.69-75
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    • 1996
  • This paper presents a VLSI architecture for the efficient implementation of the real time multi-dimensional digital filter. The computational primitive for the filter is obtained from the state space representation of the multi-dimensional general order filter. The computational primitive is used for the data path of the processor.

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A GTS-based Sensor Data Gathering under a Powerful Beam Structure (파워 빔 구조에서 GTS 기반 센서 데이터 수집 방안)

  • Lee, Kil Hung
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.10 no.1
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    • pp.39-45
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    • 2014
  • This paper proposes an architecture of a sensor network for gathering data under a powerful beam cluster tree architecture. This architecture is used when there is a need to gather data from sensor node where there is no sink node connected to an existing network, or it is required to get a series of data specific to an event or time. The transmit distance of the beam signal is longer than that of the usual sensor node. The nodes of the network make a tree network when receiving a beam message transmitting from the powerful root node. All sensor nodes in a sink tree network synchronize to the superframe and know exactly the sequence value of the current superframe. When there is data to send to the sink node, the sensor node sends data at the corresponding allocated channel. Data sending schemes under the guaranteed time slot are tested and the delay and jitter performance is explained.

Design of a Smart TV Service System for Daily Life Notification (스마트 TV 생활 알리미 서비스 시스템 설계)

  • Choi, Jong Myung;Im, Do Yeon;Park, Kyung Woo;Oh, Soo Lyul
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.8 no.3
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    • pp.23-31
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    • 2012
  • With the advance of Smart TV technologies, TV watchers can enjoy the Internet and games while watching TV programs. Besides retrieving with some keywords in the Internet, people may want to access local information such as notifications from town, messages from children's schools, shopping information from local marts, and even reminder messages for visiting from hospitals while watching TV without using web-browser. In this paper, we introduce the daily life notification service scenarios and its functional and non-functional requirements. Furthermore, we also propose a system that provides the notification services, consists of smart TV apps and server systems. We also introduce the system architecture and the component design of the system. Our work will help smart TV service developers because this paper will give them some service scenarios, requirements, and system architecture and its component design.

Applying the Graphic Processing Unit Based Cloud Computing in Cellular Network (그래픽 처리장치 기반 클라우드 컴퓨팅의 셀룰러 네트워크 응용)

  • Kim, June;Choi, Seung Won
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.8 no.3
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    • pp.75-85
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    • 2012
  • In general, cellular network is deployed as distributed network architecture, so network equipment is spread out all over the coverage area. This case causes high cost. Recently, centralized network architecture has been deployable at cellular network since base station was able to be virtualized due to advance in computing power. The centralized network architecture in cellular network adjusts its cell radius dynamically and minimizes power consumption of the network. This paper introduces a new centralized deployment way of cellular network using SDR and cloud computing technology. Then, advantage and feasibility of the new network will be reviewed by implementing this novel network.

A LT Codec Architecture with an Efficient Degree Generator and New Permutation Technique (효율적인 정도 생성기 및 새로운 순열 기법을 가진 LT 코덱 구조)

  • Hasan, Md. Tariq;Choi, Goang Seog
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.10 no.4
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    • pp.117-125
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    • 2014
  • In this paper, a novel hardware architecture of the LT codec is presented where non-BP based decoding algorithm is applied. Novel LT codec architecture is designed with an efficient degree distribution unit using Verilog HDL. To perform permutation operation, different initial valued or time shifted counters have been used to get pretty well permutations and an effect of randomness. The codec will take 128 bits as input and produce 256 encoded output bits. The simulation results show expected performances as the implemented distribution and the original distribution are pretty same. The proposed LT codec takes 257.5 cycle counts and $2.575{\mu}s$ for encoding and decoding instead of 5,204,861 minimum cycle counts and 4.43s of the design mentioned in the previous works where iterative soft BP decoding was used in ASIC and ASIP implementation of the LT codec.

Brief Overview on Design Techniques and Architectures of SAR ADCs

  • Park, Kunwoo;Chang, Dong-Jin;Ryu, Seung-Tak
    • Journal of Semiconductor Engineering
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    • v.2 no.1
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    • pp.99-108
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    • 2021
  • Successive Approximation Register (SAR) Analog-to-Digital Converters (ADC) seem to become the hottest ADC architecture during the past decade in implementing energy-efficient high performance ADCs. In this overview, we will review what kind of circuit techniques and architectural advances have contributed to place the SAR ADC architecture at its current position, beginning from a single SAR ADC and moving to various hybrid architectures. At the end of this overview, a recently reported compact and high-speed SAR-Flash ADC is introduced as one design example of SAR-based hybrid ADC architecture.

A Study on the Design of the Technology Reference Model Based on Technologies of Interoperability in Digital Libraries (디지털 도서관 상호운영성 기술요소에 기반한 기술 참조 모델 설계에 관한 연구)

  • Kim, Seong-Hee;Lee, Jeong-Soo
    • Journal of the Korean Society for information Management
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    • v.24 no.4
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    • pp.239-254
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    • 2007
  • In order to solve the problems of the digital library's Interoperability and integrated management, we analyzed core technologies for interoperability in digital library in terms of information creation, organization, service. And then we proposed information technology reference model that is composed of 7 scopes. The proposed scope included 1)Metadata Management, 2)Library Services, 3)Service Integration 4)Service Management, 5)Open Interface, 6)Network, 7)Architecture. Those results can be used as a framework for developing interoperable digital library system.

Algorithm to Estimate Oil Spill Area Using Digital Properties of Image

  • Jang, Hye-Jin;Nam, Jong-Ho
    • Journal of Ocean Engineering and Technology
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    • v.34 no.1
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    • pp.46-54
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    • 2020
  • Oil spill accidents at sea result in a wide range of damages, including the destruction of ocean environments and ecosystems, as well as human illnesses by the generation of harmful gases caused by phase changes in crude oil. When an oil spill occurs, an immediate initial action should be performed to minimize the potential damage. Existing studies have attempted to identify crude oil spillage by calculating the crude oil spill range using synthetic aperture radar (SAR) satellite images. However, SAR cannot capture rapidly evolving events because of its low acquisition frequency. Herein, an algorithm for estimating an oil spill area from an image obtained using a digital camera is proposed. Noise that may occur in the image when it is captured is first eliminated by preprocessing, and then the image is analyzed. After analyzing the characteristics of the digital image, a strategy to binarize an image using the color, saturation, or lightness contained in it is adopted. It is found that the oil spill area can be readily estimated from a digital image, allowing for a faster analysis than any conventional method. The usefulness of the oil spill area measurement was confirmed by applying the developed algorithm to various oil spill images.