• Title/Summary/Keyword: Test module

Search Result 1,585, Processing Time 0.033 seconds

Development of Low-Cost Automatic Flight Control System for Unmanned Target Drone

  • Lee, Jang-Ho;Ryu, Hyeok;Kim, Jae-Eun;Ahn, Iee-Ki
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 2004.08a
    • /
    • pp.367-371
    • /
    • 2004
  • This paper describes development of automatic flight control system for an unmanned target drone which is operated by Korean army as for anti-air gun shooting training. Current target drone is operated by pilot control of on-board servo motor via remote control system. Automatic flight control system for the target drone greatly reduces work load of ground pilot and can increase application area of the drone. Most UAVs being operated now days use high-priced sensors as AHRS and IMU to measure the attitude, but those are costly. This paper introduces the development of low-cost automatic flight control system with low-cost sensors. The integrated automatic flight control system has been developed by integrating combining power module, switching module, monitoring module and RC receiver as an one module. The performance of automatic flight control system is verified by flight test.

  • PDF

Load analysis for transporting unit module (유닛모듈 운반시 작용하중 분석)

  • Kim, Kyoon-tai;Jun, Young-Hun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2015.11a
    • /
    • pp.200-201
    • /
    • 2015
  • The unit modular method is one in which unit modules are prefabricated at a factory and then constructed at a construction site. That is why an important process, transporting unit module, is added in this method. The purpose of this study is to analyse the load for transporting unit module. The results of the analysis of the driving experimental runs revealed that a maximum load of 15 kN was applied on adapter block type A and a maximum load of 25 kN on adapter block type B. These loads were recorded at the points in the road test when the low-bed trailer was driving through unstable sections of the test such as stopping, restarting, passing over a speed bump or taking a left turn at speed.

  • PDF

Development of Cooling System for Thermal Management and Water Balance in Fuel Cell Vehicle (연료전지 차량의 열 및 물 균형 유지를 위한 냉각 시스템 개발)

  • Kim, Seong-Kyun;Lee, Seung-Yong;Kim, Chi-Myung;Park, Yong-Sun
    • 한국신재생에너지학회:학술대회논문집
    • /
    • 2006.11a
    • /
    • pp.113-117
    • /
    • 2006
  • This paper Is for development of cooling module in order to maintain heat and water balance in fuel cell vehicle. Thermal management system for fuel cell is disadvantage because the temperature of coolant is lower than that of ICE and heat duty of radiator is higher. By CFD simulation, cool ing module was developed for water balance of system. Hot chamber test and hot area/high altitude test on cool ing module was completed.

  • PDF

Design Technology Development of the 28 GHz Up and Down Converters (28 GHz 상향 및 하향변환기 설계기술 개발)

  • Na, Chae-Ho;Woo, Dong-Sik;Kim, Kang-Wook
    • Proceedings of the Korea Electromagnetic Engineering Society Conference
    • /
    • 2003.11a
    • /
    • pp.366-370
    • /
    • 2003
  • This paper introduces a new design and fabrication technology of 28 GHz low-cost up and down converter modules for digital microwave radios, The design of the converter module is based on unit circuit blocks, which are to be characterized using a special test fixture. Based on the cascade analysis of the module the 28 GHz up and down converter modules have been designed and implemented. The measured module performance agrees with the cascade analysis. New components such as a tapped edge-coupled filter and a new Ka-band waveguide-to-microstrip transition, which are less sensitive to fabrication tolerances, have been used in the module implementation.

  • PDF

Design of Automatic Assembly & Evaluation System for Phone Camera Module (폰 카메라 모듈 자동 조립.평가시스템 설계)

  • Song J.Y.;Lee C.W.;Ha T.W.;Jung Y.W.;Kim Y.G.;Lee M.C.
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 2006.05a
    • /
    • pp.71-72
    • /
    • 2006
  • In this study, automatic assembly and evaluation system fer phone camera module is conceptually designed. The designed core(Auto focus & UV curing, Image Test) equipments adopts a clustering mechanism and compactible structure using index table for minimum tact time. Using a ball screw actuator and absolute encoder in each axis, we can verifies the repeatability and position accuracy of system within ${\pm}3{\mu}m$. In result of simulation test, the proposed system is expected up to 30% in productivity than manual operation.

  • PDF

The comparison of maximum output power of PV module by solar cell breakage (PV 모듈에서 셀의 파손에 따른 전기적 출력 특성 비교)

  • Lee, Jin-Seob;Kang, Gi-Hwan;Park, Chi-Hong;Yu, Gwon-Jong;Ahn, Hyung-Gun;Han, Deuk-Young
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2007.06a
    • /
    • pp.9-10
    • /
    • 2007
  • In this paper, we investigated the effect of solar cell breakage on maximum output power of PV module. The test result using artificial light source didn't give any change in output power in case of crack near electrical ribbon. Also, there was a reduction in output power in case of increasing of crack area far from electrical ribbon. But, this experiment is under artificial light source test method. So, when such a PV module is outdoor for a long time, there would be problems on electrical output power and durability because of thermal aging phenomenon of solar cell breakage.

  • PDF

The Analysis of Environmental Effects on Maximum Output Power Change of Crystalline Silicon Photovoltaic Module (결정질 실리콘 태양전지모듈의 최대 출력특성 변화에 영향을 미치는 환경요인)

  • Kang, Gi-Hwan;Kim, Kyung-Soo;Park, Ji-Hong;Yu, Gwon-Jong;Ahn, Hyung-Keun;Han, Deuk-Young
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2007.06a
    • /
    • pp.12-13
    • /
    • 2007
  • In this paper, we studied the analysis of environmental effects on maximum output power change of crystalline silicon photovoltaic module. During the test period, there was a 5% reduction of maximum output power on an average. And the degree of output power uniformity became better compared to initial value. Using climate data like rain, snow and dust, we tried to find the reasons for maximum power fluctuation. The surface of PV module was monitored using microscope and infrared camera to study temperature distribution. The further analysis is described in the following paper.

  • PDF

Experimental Study on Thermal Characteristics of Heat Exchanger Modules for Multi Burner Boiler (멀티버너 보일러용 열교환기 모듈 특성 시험 - 모듈 순서에 따른 특성결과 -)

  • Kang, Sae-Byul;Kim, Jong-Jin;Ahn, Joon
    • Proceedings of the KSME Conference
    • /
    • 2008.11b
    • /
    • pp.3053-3058
    • /
    • 2008
  • We develop a heat exchanger modules for a multi-burner boiler. The heat exchanger module is kind of a heat recovery steam generator (HRSG). This heat recovery system has 4 heat exchanger modules. The 1st module consists of 27 bare tubes due to high temperature exhaust gas and the others consist of 27 finned tubes. The maximum steam pressure of each module is 1 MPa and tested steam pressure is 0.7 MPa. In order to test these heat exchanger modules, we make a 0.5t/h flue tube boiler (LNG, $40\;Nm^3/h$). We tested the heat exchanger module with changing the position of each heat exchanger module. We measured the inlet and outlet temperature of each heat exchanger module and calculated the heat exchange rate. The results show that if module C is placed at second stage (the 1st stage is always module O, bare tube module), there is no need to attach an additional heat exchanger module. In this case the exit temperature of module C is low enough to enter an economizer which is more effective in heat recovery than a heat exchanger module.

  • PDF

Analysis of Head Impact Test of the Passenger Air-Bag Module Assembly by LS-DYNA Explicit Code (LS-DYNA를 이용한 자동차 승객용 에어백 모듈의 헤드 충격 해석)

  • Kim, Moon-Saeng;Lim, Dong-Wan;Lee, Joon-Ho
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.23 no.12 s.189
    • /
    • pp.88-94
    • /
    • 2006
  • In this study, the dynamic impact analysis for the passenger air-bag(PAB) module has been carried out by using FEM to predict the dynamic characteristics of vehicle ride safety against head impact. The impact performance of vehicle air-bag is directly related to the design parameters of passenger air-bag module assembly, such as the tie bar bracket's width and thickness, respectively, However, the product's design of PAB module parameters are estimated through experimental trial and error according to the designer's experience, generally. Therefore, the dynamic analysis of head impact test of the passenger air-bag module assembly of automobile is needed to construct the analytical methodology At first, the FE models, which are consist of instrument panel, PAB Module, and head part, are combined to the whole module system. Then, impact analysis is carried out by the explicit solution procedure with assembled FE model. And the dynamic characteristics of the head impact are observed to prove the effectiveness of the proposed method by comparing with the experimental results. The better optimized impact performance characteristics is proposed by changing the tie bracket's width md thickness of module. The proposed approach of impact analysis will provides an efficient vehicle to improve the design quality and reduce the design period and cost. The results reported herein will provide a better understanding of the vehicle dynamic characteristics against head impact.

Reliability Assessment Criteria of Module for the LED traffic signal (LED 교통신호등용 모듈의 신뢰성평가기준)

  • Kim, Jin-Sheon;Park, Chang-Kyu;Kim, Dae-Kyung;Jeong, Hai-Sung
    • Journal of Applied Reliability
    • /
    • v.10 no.4
    • /
    • pp.265-278
    • /
    • 2010
  • Module of the LED traffic signal is the core component for the care of driver and walker. Also it is important one to control the traffic. If it is against the criteria of brightness, it is the source of the people's death and traffic congestion. Therefore, it is a list of articles desired the security of stability. However, there is not the analysis of failure and not preserve the uniformity of quality. Therefore, it is necessary to establish the criteria of appreciation for the module of the LED traffic signal to analysis the data of failure. In this paper, we investigate the performance test, environment field test and test of reliability appreciation to improve the reliability. We also set up the criteria of success decision using the real measurement data.