• Title/Summary/Keyword: Construction control system

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ICT-BIM based Quality Nonconformity Control Method for Construction Project (ICT-BIM 기반 건설프로젝트 품질부적합 관리 시스템)

  • Son, Sang-Hyuk;Lee, Hyung-Guk;Bae, Sang-Hee;Lee, Dong-Eun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2016.05a
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    • pp.76-77
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    • 2016
  • This paper presents an automated construction quality nonconformity control method. Existing quality control process are confined attributed to the dependence on human quality personnels. They are inefficiency for continuos quality improvements and may cause project schedule delays when any nonconformity is handled timely fashion. For sure, It is important to identify the add hoc quality nonconformity control processes and to implement them into an automated system that controls its' work-flow. It would be desirable to develop the construction project quality nonconformity control system using Building information modeling(BIM) and Information and Communications Technologies(ICT). It may provide an effective platform to prevent quality issues that exist in the existing quality management practice.

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A Construction Scheme of Control System in a Ground Hot-firing Test Facility (지상연소시험설비의 제어시스템 구축 방안)

  • Lee, Kwang-Jin;Kim, Ji-Hoon;Kim, Seung-Han;Han, Young-Min
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2012.05a
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    • pp.468-471
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    • 2012
  • This paper describes a construction scheme of hot backup or triple modular redundancy control system in a ground hot-firing test facility to carry out performance assessment of propulsion system used in a space launch vehicle. It was possible for a hot backup redundancy control system with manual operated console to simulate TMR control system. A console layout of control system in control center to restrict imprudent works of operators was proposed.

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The Design and Implementation of Project Management Information System based on 4CM (4CM기반의 건설사업관리 시스템 개발 및 구현)

  • Choi, Sung Youn;Kim, Jae Soo
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.7 no.2
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    • pp.101-113
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    • 2011
  • As information and communication technology advances driving the rapid evolution of e-commerce and e-business becomes on effective marketing means for both business and institutions, the industry deals with these changes and has a profound, positive impact on production and operations management. But the construction industry falls behind compared with other industries in productivity, informationalization, automatization and globalization. Especially even though the informationalization is inevitable in any developing society, a number of construction industries can hardly cope with it properly. As the construction industry gets informationalized and advanced, the introduction of PMIS (Project Management Information System) is making progress actively for the effective construction project control and productivity improvement in construction. With the government officials' political promotion and the rising desire for construction informationalization of enterprises, many are attempting to develop integrated systems or to replace a previous system with a more advanced alternative. Construction Industry, however, has the peculiar properties that the period for the completion of construction is limited and on top of that, most of its data processing systems are seen as being an early stage in the design of management information systems. As a result, there are extremely few applications in the construction industry. In this paper, we propose the PMIS system based on new model 4CM that improves on previous models.

Redundant Architectural Design of Hydraulic Control System for Reliability Improvement of Underwater Construction Robot (수중건설로봇의 유압 제어 안정성 향상을 위한 이중화 설계)

  • Lee, Jung-Woo;Park, Jeong-Woo;Suh, Jin-Ho;Choi, Young-Ho
    • Journal of Ocean Engineering and Technology
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    • v.29 no.5
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    • pp.380-385
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    • 2015
  • In the development of an underwater construction robot, the reliability of the operating system is the most important issue because of its huge maintenance cost, especially in a deep sea application. In this paper, we propose a new redundant architectural design for the hydraulic control system of an underwater construction robot. The proposed architecture consists of dual independent modular redundancy management systems linked with a commercial profibus network. A cold standby redundancy management system consisting of a preprocessing switch circuit is applied to the signal network, and a hot standby redundancy management system is adapted to utilize two main controllers.

Interoperable System Construction with Urban Signalling System (ATS) for Train Control system (열차제어시스템 적용을 위한 기존 신호시스템(ATS)과의 상호운영체계 구축)

  • Ko, Yang-Ok;Lee, Gi-Seung;Lee, Nam-Il;Jung, Ho-Hung
    • Proceedings of the KSR Conference
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    • 2011.10a
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    • pp.204-210
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    • 2011
  • This paper present investigation of interoperable process and interaction-facts between urban and new ATS signalling system for degrading, improvement or replacement in wireless communication-based train control system of urban driverless transit, and investigate interoperable requirement from joint program of cooperation-"wireless communication-based train control system's standard process construction and performance evaluation on urban transit" of first year result.

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Development of a 3D Printing System for Construction Using an Articulated Robot (다관절 로봇을 이용한 건설용 3D프린팅 출력시스템 개발)

  • Lee, Giryun;Nho, Hyunju;Jung, Namcheol
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.11a
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    • pp.263-264
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    • 2023
  • 3D printing technology is recognized as a core technology that will lead the next generation, and is a field that can have a large ripple effect if it innovates the existing construction production method. Therefore, this study deals with the development of a 3d printing system using an articulated robot for construction purposes. In this system, ABB robot was used to control the developed cement gun accurately. The system is composed of mixer to mix cementitious materials, pump to transfer the materials, abb robot to motion control and cement gun to extrude the materials to print required construction parts. Using the system developed in this study, a suitable mix ratio of cementitious materials was found and successively printed a 1m high structure that demonstrated possibility of printing structures using 3d printer. In the future, we plan to build a foundation for automated construction through research on construction methods and materials that can be continuously layered for the system.

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DEVELOPMENT OF MATERIAL TRACKING SYSTEM USING WIRELESS TECHNOLOGY IN HIGH-RISE BUILDING

  • Jae-Goo Han;Min-Woo Lee;Soon-Wook Kwon;Moon-Young Cho
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.1017-1021
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    • 2005
  • There is a need for effective tracking and control of material loading and delivery time especially during the finishing-work phases to eliminate the need for lay-down space on the site. Hence, it is essential to monitor the relevant information regarding material procurement in construction sites, and it is also the key factor for successful site control and the adoption of the Just-in-Time concept for high-rise building construction. The purpose of this study is to test RFID's readability in order to develop a finishing material monitoring system through the application of RFID technology.

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Construction Progress Measurement System by tracking the Work-done Performance (내역물량 측정에 의한 건설공사진도율 산정시스템)

  • Choi Yoon-Ki
    • Korean Journal of Construction Engineering and Management
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    • v.4 no.3 s.15
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    • pp.137-145
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    • 2003
  • The project control system based on the actual values of three objects shall be operated continuously in a timely manner. For collecting/tracking accurate actual performance data, a reasonable basis of measuring work performance and its related measuring methods are needed. Therefore, this research proposes a method of developing and operating the construction progress measurement system. The problem of the conventional method is the difficulty to construct control accounts and to define the basis of measuring the performance of each control account. Therefore, this research proposes the preferable, formal methodology that produces the progress value of the smallest work unit by surveying the installed quantities and estimates percent complete of groups of works or entire project by earned value concept. This research in connection with the hereafter research of the weight value of control accounts will contribute to apply in practice and to develop the scientific construction management technique in the construction industry. Further researches how to trend and forecast the project using the measured progress value are recommended for putting the prosed system of this research to practical use.

Self-Learning Supervisory Control of a Power Transmission System in a Construction Vehicle during Inertia Phase (건설장비용 동력전달계의 관성영역에서의 자기학습 제어기법)

  • Choi, Gil-Woo;Hahn, Jin-Oh;Hur, Jae-Woong;Cho, Young-Man;Lee, Kyo-Il
    • Proceedings of the KSME Conference
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    • 2001.11a
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    • pp.723-729
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    • 2001
  • Electro-hydraulic shift control of a vehicle automatic transmission has been predominantly carried out via an open-loop control based on numerous time-consuming calibrations. Despite remarkable success in practice, the variations of system characteristics inevitably deteriorate the performance of the tuned open-loop controller. As a result, the controller parameters need to be continuously updated in order to maintain satisfactory shift quality. This paper presents a self-learning algorithm for automatic transmission shift control in a construction vehicle during inertia phase. First, an observer reconstructs the turbine acceleration signal (impossible to measure in a construction vehicle) from the readily accessible turbine speed measurement. Then, a control algorithm based on a quadratic function of the turbine acceleration is shown to guarantee the asymptotic convergence (within a specified target bound) of the error between the actual and the desired turbine accelerations. A Lyapunov argument plays a crucial role in deriving adaptive laws for control parameters. The simulation and hardware-in-the-loop simulation (HILS) studies show that the proposed algorithm actually delivers the promise of satisfactory performance despite the system characteristics variations and uncertainties.

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Development and Application of Construction Control System for Excavation (굴착 관리 정보화 시스템의 개발 및 적용)

  • 권오순;정충기;김재관;이해성;김명모
    • Journal of the Korean Geotechnical Society
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    • v.15 no.4
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    • pp.153-166
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    • 1999
  • Since the reliability of results by the existing analyzing method is low, in the case of for excavation performed in urban area whose stability is of great importance, construction control based on field monitoring is always necessary. But the field monitoring reflects only the behavior of construction process that has already been carried out, and it has limitations in predicting the behavior of the expected construction process, which is practically more important for construction control. In this study, construction control system for excavation which can predict the behavior of the expected processes during construction with high degree of accuracy, is developed by adopting inverse analysis. The inverse analied applied field monitoring results to excavation analysis can improve the reliability of predicted results. The developed system uses an elasto-plastic soil spring model for the excavation analysis and the minimization of least squared errors between measured displacements and calculated displacements for the inverse analysis. All the required processes for construction control can be performed as an integrated work within the system reflecting real time application and user's convenience. Their applicabilitis are confirmed by two case studies.

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