• Title/Summary/Keyword: Implementation Table

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Implementation of Temperature Measuring Sl Control System sing Fuzzy Theory (Fuzzy 이론을 이용한 온도 계측제어 시스템의 구현)

  • 박정훈;강문성;김윤호;유광렬
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 1999.11a
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    • pp.282-286
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    • 1999
  • This paper describes the implementation of a fuzzy temperature measuring & control system to control the water temperature in plant. This system consisted of mainly three parts; sensing part, control part that includes a control algorithms introduced the fuzzy theory, and actuating part. The control algorithms of control part are utilized a look-up table method and firmware technique using one-chip microprocessor(89C52). For evaluating the performance of a fuzzy control system, the experiment results of a fuzzy controller are compared with these of a conventional PID controller which provides an auto-tuning function. The experiment results show that the proposed controller has a good control performance and is robust to external disturbance.

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A Quantitative ERRC Analysis Method via Requirements Cost Estimation (요구사항의 비용산출을 통한 정량적인 ERRC 분석 방법)

  • Eom, Jeong-Yong;Kim, Neung-Hoe;Lee, Dong-Hyun;In, Hoh Peter
    • Journal of Information Technology Services
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    • v.8 no.1
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    • pp.113-124
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    • 2009
  • Value-based requirements engineering process, called The ViRE(Value-Innovative Requirement Engineering) was suggested to create an uncontested market using ERRC(Eliminate, Reduce, Raise, Create) requirements analysis. But ViRE did not provides a quantitative data analysis method for ERRC decision so as to make objective decisions for customers. In this paper, to solve this problem, we suggest a quantitative ERRC analysis method by estimating requirements cost. Our method defines user requirements and decides their weight. Then, it makes quality level table for all the identified requirements and function modules and estimate implementation cost based on their quality levels. Finally, assess each requirement's impact and then evaluate ERRC value. We could get the more objective ERRC values by evaluate the requirement weight. functional module weight, and implementation cost. And we proved the efficiency of our model by a case study, smart student ID system.

Multi-Symbol Binary Arithmetic Coding Algorithm for Improving Throughput in Hardware Implementation

  • Kim, Jin-Sung;Kim, Eung Sup;Lee, Kyujoong
    • Journal of Multimedia Information System
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    • v.5 no.4
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    • pp.273-276
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    • 2018
  • In video compression standards, the entropy coding is essential to the high performance compression because redundancy of data symbols is removed. Binary arithmetic coding is one of high performance entropy coding methods. However, the dependency between consecutive binary symbols prevents improving the throughput. For the throughput enhancement, a new probability model is proposed for encoding multi-symbols at one time. In the proposed method, multi-symbol encoder is implemented with only adders and shifters, and the multiplication table for interval subdivision of binary arithmetic coding is removed. Compared to the compression ratio of CABAC of H.264/AVC, the performance degradation on average is only 1.4% which is negligible.

Implementation Method of Overmodulation Technique With High Linearity in DSP (선형성이 우수한 과변조 기법의 DSP 구현 방법)

  • Kim, Joon-Seok;Kim, Do-Hyen;Lee, June-Hee;Lee, June-Seok
    • The Transactions of the Korean Institute of Power Electronics
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    • v.27 no.2
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    • pp.118-125
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    • 2022
  • With the aim to maximize the use of a given voltage source in the field of railway and electric vehicles, this study applies a technique for controlling the overmodulation region between the linear and the six-step regions. High linearity overmodulation techniques that do not use look-up table (LUT) to digital signal processor (DSP) using carrier based pulse width modulation (PWM) are proposed. Such technique requires the phase of the voltage vector at the point where the circular trajectory of the voltage command vector and hexagonal cross each other. Therefore, a method is proposed to obtain a phase of a voltage vector that is derived through an equation and applied to a carrier-based PWM. Validity of the proposed implementation method is confirmed through simulation and experiment.

A Study on the System Principle of PID Module Implementation (PID Module 구현 원리 시스템에 대한 연구)

  • 위성동;김태성;최창주;권병무
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 1999.05a
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    • pp.183-192
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    • 1999
  • The derivative equation measured of a ${\Delta}MV=Kp*{(EVn-EVn-1)+\frac{1}{Ki/S}* EVn+(Kd/S)*(2PVn-1-PVn-PVn-1)}$ is used on the machine apparatus of industrial field, but this par doesn\`t able to educate now, because we didn\`t have the implementation device of PID module, so the principle implementation system of the PID Module is manufactured and developed. Through this system, the implementation system of PID Module is practiced with that the SV and the set of P, I, D is set on the derivative equation measured of PID. A things to be known of this experiment result is flow. 1)PID module is known that had to be used with the module of A/D and D/A. 2) In process of PV is approached to the SV to follow Kp, Ti and Td to cause a constant of set value on the $MVp=Kp*EV, MV=\frac{1}{Ki}{\int}EVdt, MVd=Td\frac{d}{dt}EV$, the variable rate of E and Kp, Td, Ti in that table 1 is analysed, is same as flow. (1)If Kp is high, PV is near fast to the SV, but Kp is small, PV is near slowly to the SV. (2)If Ki is shot, PV is close fast to the SV, but Ti is high, PV is close slowly to the SV (3)If Td is high, the variable rate of E press hardly when because it doesn\`t increase, but Td is small, the variable rate of E press not hardly, upper with 1), 2), PID module is supposed that be able to do the A/S and an implementation of that apparatus, and getting a success of aim that an engineer want, on control of temperature, tension, velocity, amount of flow, power of wind end so on, to get the principle of automatic implementation in industrial field with cooperation of A/D and D/A module.

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A Multi-Level Accumulation-Based Rectification Method and Its Circuit Implementation

  • Son, Hyeon-Sik;Moon, Byungin
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.11 no.6
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    • pp.3208-3229
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    • 2017
  • Rectification is an essential procedure for simplifying the disparity extraction of stereo matching algorithms by removing vertical mismatches between left and right images. To support real-time stereo matching, studies have introduced several look-up table (LUT)- and computational logic (CL)-based rectification approaches. However, to support high-resolution images, the LUT-based approach requires considerable memory resources, and the CL-based approach requires numerous hardware resources for its circuit implementation. Thus, this paper proposes a multi-level accumulation-based rectification method as a simple CL-based method and its circuit implementation. The proposed method, which includes distortion correction, reduces addition operations by 29%, and removes multiplication operations by replacing the complex matrix computations and high-degree polynomial calculations of the conventional rectification with simple multi-level accumulations. The proposed rectification circuit can rectify $1,280{\times}720$ stereo images at a frame rate of 135 fps at a clock frequency of 125 MHz. Because the circuit is fully pipelined, it continuously generates a pair of left and right rectified pixels every cycle after 13-cycle latency plus initial image buffering time. Experimental results show that the proposed method requires significantly fewer hardware resources than the conventional method while the differences between the results of the proposed and conventional full rectifications are negligible.

Risk and Opportunity of Interest Conflict Settlement : Introduction of Consumer Collective Lawsuit (Verbandsklage) (이해관계 갈등조정의 위기와 기회 - 소비자단체소송제도의 도입 -)

  • Min, Hyeon-Seon;Jang, Ju-Seong
    • 한국디지털정책학회:학술대회논문집
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    • 2006.06a
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    • pp.39-44
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    • 2006
  • The purport of this paper is to deduce political implication and significance of the proposed redress scheme of 'Consumer Collective Lawsuit (hereinunder "CCL")' under way to be introduced by the Korean government via various assessments per each phase of policy implementation process. To this end, the paper classifies the subject policy (referring to CCL) implementation process into 4 phases: policy origination, policy enactment, policy advertisement, and policy execution. Based on the said classification, assessments per each phase together with pros and cons analysis have been conducted. Through the aforementioned analysis, the paper concludes the following political implication and significance of CCL under way of introduction: - 1. In the case of policy origination led by external parties, a social consensus by and from involved parties with various interests is the most critical; 2. Prior feasibility and/or suitability study is also crucial in the policy implementation procedure; 3. To mitigate inter-ministerial conflicts that might arise from the due policy making procedure, democratization of conflict settlement mechanism, and institutionalization of participation in and disclosure of policy making process are cal led upon; and 4. Prior planning wi th respect to the public relation and advertisements of the subject policy on the table poses substantial significance.

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Design and Implementation of Virtual Aquarium

  • Bak, Seon-Hui;Lee, Heeman
    • Journal of the Korea Society of Computer and Information
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    • v.21 no.12
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    • pp.43-49
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    • 2016
  • This paper presents the design and implementation of virtual aquarium by generating 3D models of fishes that are colored by viewers in an aim to create interaction among viewers and aquarium. The virtual aquarium system is composed of multiple texture extraction modules, a single interface module and a single display module. The texture extraction module recognize the QR code on the canvas to get information of the predefined mapping table and then extract the texture data for the corresponding 3D model. The scanned image is segmented and warp transformed onto the texture image by using the mapping information. The extracted texture is transferred to the interface module to save on the server computer and the interface module sends the fish code and texture information to the display module. The display module generates a fish on the virtual aquarium by using predefined 3D model with the transmitted texture. The fishes on the virtual aquarium have three different swimming methods: self-swimming, autonomous swimming, and leader-following swimming. The three different swimming methods are discussed in this paper. The future study will be the implementation of virtual aquarium based on storytelling to further increase interactions with the viewer.

Implementation of a MAC protocol in ATM-PON

  • Kim, Tea-Min;Shin, Gun-Soon
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.8 no.3
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    • pp.586-597
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    • 2004
  • MAC (Medium Access Control) protocol is necessary for a OLT (Optical Line Termination) to allocate bandwidth to ONUs (Optical Network Units) dynamically in ATM PON (Passive Optical Network) operated in a kind of optical subscriber network having tree topology. The OLT collect information about ONUs and provide all permission with each ONU effectively by means of MAC protocol. Major functions of MAC protocol are composed of the algorism for distributing permission demanded by a ONU dynamically and allocation all permission used in APON properly. Sometimes MAC get to be a element of limiting the whole operation speed and occupy a most frequent operation part of the TC (Transmission Convergence) function module so it have to be designed to guarantee the best quality for each traffic. This paper introduce the way of implementation of a algorism which satisfy all of the upper renditions. This MAC algorism allocate bandwidth according to a number of working ONU and the information of the queue length dynamically and distribute permission for same interval to minimize delay variation of each ONU cell. MAC scheduler for the dynamic bandwidth allocation which is introduced in this paper has look-up table structure that makes programming possible. This structure is very suitable for implementation and operated in high speed because it require very simple and small chip size.

Practical Implementation and Performance Evaluation of Random Linear Network Coding (랜덤 선형 네트워크 코딩의 실용적 설계 및 성능 분석)

  • Lee, Gyujin;Shin, Yeonchul;Koo, Jonghoe;Choi, Sunghyun
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.40 no.9
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    • pp.1786-1792
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    • 2015
  • Random linear network coding (RLNC) is widely employed to enhance the reliability of wireless multicast. In RLNC encoding/decoding, Galois Filed (GF) arithmetic is typically used since all the operations can be performed with symbols of finite bits. Considering the architecture of commercial computers, the complexity of arithmetic operations is constant regardless of the dimension of GF m, if m is smaller than 32 and pre-calculated tables are used for multiplication/division. Based on this, we show that the complexity of RLNC inversely proportional to m. Considering additional overheads, i.e., the increase of header length and memory usage, we determine the practical value of m. We implement RLNC in a commercial computer and evaluate the codec throughput with respect to the type of the tables for multiplication/division and the number of original packets to encode with each other.