• Title/Summary/Keyword: Intelligent display

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Intelligent Backlighting System for LCD TV

  • Sanchez, Jorge P.;Lim, Sung-Kyoo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08a
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    • pp.363-366
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    • 2007
  • A new current control technique called Amplitude Shift Modulation (ASM) for cold cathode fluorescent lamps (CCFL) has been developed. This new technique sets and continuously controls the current of each individual CCFL in an LCD backlight lamp array.

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Optimized Design of a Planar Haptic Device Using Passive Actuators

  • Kim, Tae-Woo;Cho, Chang-Hyun;Kim, Mun-Sang;Song, Jae-Bok
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.1565-1570
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    • 2003
  • Passive Haptic Devices have more benefit than the active in Stability. But Apart from benefits, it shows poor performance in haptic display. The author proposed the passive FME(Force Manipulability Ellipsoid) which can graphically show force generating ability of a passive haptic device. In this paper, performance indexes for the force approximation and pseudo friction cone are obtained with the passive FME and an optimized planar device with the indexes is proposed. Based on the above theory, experiment is conducted.

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A Design of the Graphic Simulator for a Robotic Workcell (로보틱 워크셀을 위한 그래픽 시뮬레이터의 구성)

  • Lee, Sang-Moo;Lee, Bum-Hee;Ko, Myoung-Sam;Kim, Kwang-Bae
    • Proceedings of the KIEE Conference
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    • 1988.11a
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    • pp.441-444
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    • 1988
  • This paper presents a methodology for developing the graphic simulator for a robotic workcell. The Petri Net model is applied to described the system state and the workcell simulation is performed by the event scheduling approach of the model. For the graphic display of simulation process, the information of the workcell resources are stored in hierachically-structured data_babe, and the geometry of the resources is described by robot modelling, component modelling, and world modelling.

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Edge Enhanced Error Diffusion Based on Local Average of Original Image

  • Kang, Tae-Ha;Lee, Tae-Seung;Park, Hyeong-Taek;Hwang, Byong-Won
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2003.09a
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    • pp.612-615
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    • 2003
  • The error diffusion is a good method to reconstruct the continuous tones of an image to the bilevel tones However the reconstruction of edge characteristic by the nor diffusion is represented work when power spectrum is analyzed fer display error. In this paper, we present an edge enhanced error diffusion method to preprocess original image to achieve the enhancement for the edge characteristic. The preprocessing algorithm consist of two processes. First the difference value between the current pixel and the local average of the surrounding pixel in original image is obtained. Second, the weighting function is composed by the magnitude and the sign of the local average. To confirm the effect of the proposed method, it is compared with the conventional edge enhanced error diffusion methods by measuring the radially averaged power spectrum densities (RAPSDs) for their display errors. The comparison result demonstrate the superiority of the proposed method over the conventional ones.

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An Intelligent Human-Machine Interface for Next Generation Nuclear Power Plants

  • Park, Seong-Soo;Park, Jin-Kyun;Hong, Jin-Hyuk;Chang, Soon-Heung;Kim, Han-Gon
    • Proceedings of the Korean Nuclear Society Conference
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    • 1995.10a
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    • pp.191-196
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    • 1995
  • The intelligent human-machine interface (HMI) has been developed to enhance the safety and availability of a nuclear power plant by improving operational reliability The key elements of the HMI are the large display panels which present synopsis of the plant status and the compact, digital work stations for the primary operator control and monitoring functions. The work station consists of four consoles such as a dynamic alarm console (DAC), a system information console (SIC), a computerized operating-procedure console (COC), and a safety related information console (SRIC). The DAC provides clean alarm pictures, in which information overlapping is excluded and alarm impacts are discriminated, for quick situation awareness. The SIC covers a normal operation by offering all necessary plant information and control functions. In addition, it is closely linked with the DAC and the COC to automatically display related system information under the request of these consoles. The COC aids the operator with proper emergency operation guidelines so as to shutdown the plant safely, and it also reduces his physical/mental burden by automating the operating procedures. The SRIC continuously displays safety related information to allow the operator to assess the plant status focusing on plant safety. The proposed HMI has been validated and demonstrated with on-line data obtained from the full-scope simulator for Yonggwang Units 1,2.

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Intelligent Control Interface for Display Power Response to a User's Activity (사용자 활동 상태에 반응하는 지능형 디스플레이 전원 제어 인터페이스)

  • Baek, Jong-Hun;Yun, Byoung-Ju
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.47 no.2
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    • pp.61-68
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    • 2010
  • As a result of the growth of mobile devices such as PDA and cellular phone, a user can utilize various digital contents everywhere and anytime. However, mobile devices have the limited resources and interaction mechanisms. This paper introduces the schema for a user activity estimation and its application in order to overcome the poor user interface and limited resource problems. We are able to supplement lacking the user interface of mobile devices by using the user activity estimation proposed in this paper, and its application is a intelligent control interface for the display power on or off which can effectively utility the battery of the mobile device.

A Study on Design of Intelligent Wet Station for Semiconductor (지능형 반도체 세정장비 설계에 관한 연구)

  • Kim Jong Won;Hong Kwagn Jin;Cho Hyun Chan;Kim Kwang Sun;Kim Doo Yong;Cho Jung Keun
    • Journal of the Semiconductor & Display Technology
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    • v.4 no.3 s.12
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    • pp.29-33
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    • 2005
  • As the integrated devices become more and more sophistcated, the diameter of wafers increased up to 300 mm and strict level of cleaning is necessary to remove the particulates on the surface of wafer. Therefore we need a new type of wet-station which can reduce DI water and chemical in the cleaning process. Moreover, it is important to control the temperature and the concentration of chemical in the wet-station. In the conventional chemical supply system, it is difficult not only to fit the mixing rate of chemicals in cleaning process, but also to fit the quantity and temperature. Thus, we propose a new chemicals supply system, which overcomes above problems by the analysis of fluid and thermal transfer on chemical supply system.

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Polaroid Film Defect Detection Using 2D - Continuous Wavelet Transform (2차원 연속 웨이블릿을 이용한 편광 필름 결함 검출)

  • Jung, Chang-Do;Kim, Se-Yun;Joo, Young-Bok;Yun, Byoung-Ju;Choi, Byung-Jae;Park, Kil-Houm
    • Journal of the Korean Institute of Intelligent Systems
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    • v.19 no.6
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    • pp.743-748
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    • 2009
  • In this paper, we propose an effective method to extract background components in automated vision inspection system for polarized film used in TFT LCD display panels. The test image signals are typically composed of three components such as ununiform background, random noises and target defect signals. It is important to analyze the background signal for accurate extraction of defect components. Two dimensional continuous wavelets with first derivative gaussian is used. This methods can be applied for reliable extraction of defect signal by elimination of the background signal from the original image. The proposed method outperforms over conventional FFT methods.

Intelligent AQS System with Artificial Neural Network Algorithm and ATmega128 Chip in Automobile (신경회로망 알고리즘과 ATmega128칩을 활용한 자동차용 지능형 AQS 시스템)

  • Chung Wan-Young;Lee Seung-Chul
    • Journal of Institute of Control, Robotics and Systems
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    • v.12 no.6
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    • pp.539-546
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    • 2006
  • The Air Quality Sensor(AQS), located near the fresh air inlet, serves to reduce the amount of pollution entering the vehicle cabin through the HVAC(heating, ventilating, and air conditioning) system by sending a signal to close the fresh air inlet door/ventilation flap when the vehicle enters a high pollution area. The sensor module which includes two independent sensing elements for responding to diesel and gasoline exhaust gases, and temperature sensor and humidity sensor was designed for intelligent AQS in automobile. With this sensor module, AVR microcontroller was designed with back propagation neural network to a powerful gas/vapor pattern recognition when the motor vehicles pass a pollution area. Momentum back propagation algorithm was used in this study instead of normal backpropagation to reduce the teaming time of neural network. The signal from neural network was modified to control the inlet of automobile and display the result or alarm the situation in this study. One chip microcontroller, ATmega 128L(ATmega Ltd., USA) was used for the control and display. And our developed system can intelligently reduce the malfunction of AQS from the dampness of air or dense fog with the backpropagation neural network and the input sensor module with four sensing elements such as reducing gas sensing element, oxidizing gas sensing element, temperature sensing element and humidity sensing element.

A Study on the Implementation of Intelligent Diagnosis System for Motor Pump (모터펌프의 지능형 진단시스템 구현에 관한 연구)

  • Ahn, Jae Hyun;Yang, Oh
    • Journal of the Semiconductor & Display Technology
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    • v.18 no.4
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    • pp.87-91
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    • 2019
  • The diagnosis of the failure for the existing electrical facilities was based on regular preventive maintenance, but this preventive maintenance was limited in preventing a lot of cost loss and sudden system failure. To overcome these shortcomings, fault prediction and diagnostic techniques are critical to increasing system reliability by monitoring electrical installations in real time and detecting abnormal conditions in the facility early. As the performance and quality deterioration problem occurs frequently due to the increase in the number of users of the motor pump, the purpose is to build an intelligent control system that can control the motor pump to maximize the performance and to improve the quality and reliability. To this end, a vibration sensor, temperature sensor, pressure sensor, and low water level sensor are used to detect vibrations, temperatures, pressures, and low water levels that can occur in the motor pump, and to build a system that can identify and diagnose information to users in real time.