• Title/Summary/Keyword: Operating Profile

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Integrated Management System of Profile Based on CC/PP for Supporting Content Adaptation Services (콘텐츠 적응화 서비스 지원을 위한 CC/PP기반의 프로파일 통합 관리 시스템)

  • Kim, Kyung-Sik;Lee, Jae-Dong
    • Journal of Korea Multimedia Society
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    • v.10 no.8
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    • pp.1078-1091
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    • 2007
  • This paper proposes the system to manage profiles effectively that are necessary for content adaptation services. The proposed profiles for providing content adaptation services are used in the various services. However, currently, there are lack of the interoperability in profiles due to the different configuration, which is affected by different services. The service providers also spend a lot of operating costs by operating profiles respectively. To solve theses problems, the system which can integrate and manage the various kinds of the profiles is necessary. Based on profile services architecture and the previous profile research to the necessary functions for the proposed integrated management system of profile are derived. The proposed integrated management system of profile supports also the functions such as receiving, processing, saying, managing, providing and supports profiles that are made of RDF form and comply with the CC/PP specification. The metadata constitution technique and dynamic technique for effective content adaptation also are applied. As a result of performance evaluation the proposed techniques improve the performance 4% compared with the previous techniques.

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Small Target Detection Using Cross Product Based on Temporal Profile in Infrared Image Sequences (적외선 영상 시퀀스에서 시간적 프로파일 기반의 외적을 사용한 소형 표적 검출)

  • Kim, Byoung-Ik;Bea, Tea-Wuk;Kim, Young-Choon;Ahn, Sang-Ho;Kim, Duk-Gyoo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.1C
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    • pp.8-16
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    • 2010
  • This paper presents a new small target detection method using the cross product of the temporal pixels based on the temporal profile in infrared (IR) image sequences. The temporal characteristics of small targets and the various backgrounds are different. A new algorithm classifies target pixels and the background pixels through the hypothesis testing using the cross product of pixels on the temporal profile and predicts the temporal backgrounds based on the results. The small targets are detected by subtracting the predicted temporal background profile from the original temporal profile. For the performance comparison between the proposed algorithm and the conventional algorithms, the receiver operating characteristics (ROC) curves is computed in experiment. Experimental results show that the proposed algorithm has better discrimination and a lower false alarm rate than the conventional methods.

The design of high profile H.264 intra frame encoder (H.264 하이프로파일 인트라 프레임 부호화기 설계)

  • Suh, Ki-Bum
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.11
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    • pp.2285-2291
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    • 2011
  • In this paper, H.264 high profile intra frame encoder, which integrates intra prediction, context-based adaptive variable length coding(CAVLC), and DDR2 memory control module, is proposed. The designed encoder can be operated in 440 cycle for one-macroblock. In order to verify the encoder function, we developed the reference C from JM 13.2 and verified the developed hardware using test vector generated by reference C. The designed encoder is verified in the FPGA (field programmable gate array) with operating frequency of 200 MHz for DMA (direct memory access), operating frequency of 50 MHz of Encoder module, and 25 MHz for VIM(video input module). The number of LUT is 43099, which is about 20 % of Virtex 5 XC5VLX330.

A Low-Profile Dipole Array Antenna with Monopole-Like Radiation for On-Body Communications

  • Tak, Jinpil;Choi, Jaehoon
    • Journal of electromagnetic engineering and science
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    • v.15 no.4
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    • pp.245-249
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    • 2015
  • In this paper, a low-profile dipole array antenna with monopole-like radiation for on-body communications is proposed. The proposed antenna, operating in the industrial, scientific, and medical (ISM) band, is designed with consideration of the human body effect. By placing eight planar dipole antenna elements symmetrically around the z-axis, the proposed antenna achieves monopole-like radiation characteristics with a low profile. The antenna has overall dimensions of $0.44{\lambda}_0{\times}0.44{\lambda}_0{\times}0.013{\lambda}_0$ at 2.45 GHz in the ISM 2.45 GHz band (2.4-2.485 GHz) and a 10-dB return loss bandwidth of 4.9% ranging from 2.4 to 2.52 GHz.

An Operation Method of Many UPFC's for Maintaining the Optimal Voltage Profile (계통 최적전압 상태 유지를 위한 다기 UPFC 운용방법)

  • Kim, Tae-Hyun;Moon, Seung-Il;Park, Jong-Keun
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.49 no.11
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    • pp.531-535
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    • 2000
  • A method to compute the reactive powers of the added buses by the decoupled UPFC model for the optimal voltage profile is presented, by which the voltage magnitudes of PQ buses can get closer to the reference value(usually one p.u.). The performance index for assessing how much the voltage magnitude is closer to the reference value is defined as the squared sum of the present voltage minus the reference voltage multiplied by the weighting number associated with the relative importance of the buses. Numerical example in a 10-unit 39-bus power system with 2 UPFC's shows that the performance index can be very much reduced by operating many UPFC's with the reactive powers for the optimal voltage profile proposed in this paper.

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Effects of Geometry and Operating Fluid on the Expansion Behavior of Liquid-Solid Fluidized Beds

  • Mohsen Mozafari-Shamsi;Alireza Malooze;Mohammad Sefid;Mostafa Soroor;Ehsan Mehrabi Gohari
    • Korean Chemical Engineering Research
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    • v.61 no.2
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    • pp.312-321
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    • 2023
  • Fluidized beds have been widely used in industrial applications, which in most of them, the operating fluid is non-Newtonian. In this study, the combination of the lattice Boltzmann method (LBM) and the smoothed profile method has been developed for non-Newtonian power-law fluids. The validation of the obtained model were investigated by experimental correlations. This model has been used for numerical studying of changing the operating fluid and geometrical parameters on the expansion behavior in liquid-solid beds with both Newtonian and non-Newtonian fluids. Investigations were performed for seven different geometries, one Newtonian, and two non-Newtonian fluids. The power-law index was in the range of 0.8 to 1, and the results for the Newtonian fluidized beds show more porosity than the non-Newtonian ones. Furthermore, increasing the power-law index resulted in enhancing the bed porosity. On the other hand, bed porosity was decreased by increasing the initial bed height and the density of the solid particles. Finally, the porosity ratio in the bed was decreased by increasing the solid particle diameter.

Multiple Drones Collision Avoidance in Path Segment Using Speed Profile Optimization (다수 드론의 충돌 회피를 위한 경로점 구간 속도 프로파일 최적화)

  • Kim, Tae-Hyoung;Kang, Tae Young;Lee, Jin-Gyu;Kim, Jong-Han;Ryoo, Chang-Kyung
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.50 no.11
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    • pp.763-770
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    • 2022
  • In an environment where multiple drones are operated, collisions can occur when path points overlap, and collision avoidance in preparation for this is essential. When multiple drones perform multiple tasks, it is not appropriate to use a method to generate a collision-avoiding path in the path planning phase because the path of the drone is complex and there are too many collision prediction points. In this paper, we generate a path through a commonly used path generation algorithm and propose a collision avoidance method using speed profile optimization from that path segment. The safe distance between drones was considered at the expected point of collision between paths of drones, and it was designed to assign a speed profile to the path segment. The optimization problem was defined by setting the distance between drones as variables in the flight time equation. We constructed the constraints through linearize and convexification, and compared the computation time of SQP and convex optimization method in multiple drone operating environments. Finally, we confirmed whether the results of performing convex optimization in the 20 drone operating environments were suitable for the multiple drone operating system proposed in this study.

Development of Typical On-Machine Measurement S/W based 3D modeler (3D 모델러 기반의 기상측정 소프트웨어 개발)

  • 김찬우;신장순;윤길상;조명우;박균명;유택인
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1581-1584
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    • 2003
  • This paper proposed efficient manufacturing system using OMM(on-machine measurement) system and OMM operating S/W based 3D modeler. A Developed program connected tool machine with RS232C. It is composed two operating system that touch probe operating and laser displacement sensor operating system. A program for touch probe possible measure considered inspection feature and CAD data. The laser operating program is used inspection for profile. very small hole using installed feature data. This system is applied manufacturing line of mold(cavity, core) also verification of efficiency manufacturing process that production, reduction machining error of each process

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The Development of 3D based On-Machine Measurement Operating System (3D 기반의 기상측정 운영시스템 개발)

  • 윤길상;최진화;조명우;김찬우
    • Journal of the Korean Society for Precision Engineering
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    • v.21 no.7
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    • pp.145-152
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    • 2004
  • This paper proposed efficient manufacturing system using the OMM (on-machine measurement) system. The OMM system is software based 3D modeler for inspection on machine and it is interfaced tool machine with RS232C. The software is composed of two inspection modules that one is touch probe operating module and the other is laser displacement sensor operating module. The module for touch probe has need of inspection feature that extracted it from CAD data. Touch probe moves to workpiece by three operating modes as follows: manual, general and automatic mode. The operating module of laser displacement sensor is used inspection for profile and very small hole. An Advantage of this inspection method is to be able to execute on-line inspection during machining or after it. The efficiency of proposed system which can predict and definite the machining errors of each process is verified, so the developed system is applied to inspect the mold-base(cavity, core).

SRM modeling and simulation of senserless speed control method using PI controller (PI 제어기를 이용한 센서리스 속도제어 방식의 SRM 모델링 및 시뮬레이션)

  • 최재동
    • Proceedings of the KIPE Conference
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    • 2000.07a
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    • pp.525-528
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    • 2000
  • This paper presents a circuit analysis and cotnrol example of favored configuration 6/4 SRM. SRM modeling and analysis are necessary for experiment. Thus this paper proposes a SRM modeling with PI controller (of driving converter) input voltage chopping and inductance profile when rotor position transformed. Through this simulation the designer can predict operating states of systems over a broad range of operating conditions.

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