• Title/Summary/Keyword: Construction control system

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Test method for step-by-step construction of Autonomous station control system (자율분산 역 제어시스템 단계적 구축에 따른 테스트 방법)

  • Kim, Young-Hoon
    • Proceedings of the KSR Conference
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    • 2007.05a
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    • pp.1239-1243
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    • 2007
  • Autonomous Station Control System is automatic route control system of large-scale station. The system has flexibility of system step-by-step construction and expandability. A method of step-by-step construction for Autonomous Station Control System has system expansion and subsystem software expansion. The system has autonomous controllability and autonomous coordinability for system step by step construction. With property for a basis, each of subsystem communicates data field. Also, Each subsystem has its own management system, Autonomous Data Manager to manage itself and coordinate with the others. This paper make clear test method for Autonomous Station Control System expansion and software expansion. The first test method of system increasing construction is single station construction test. The second of method is connecting test the neighbor's Autonomous Station Control System. The third of method is connecting test the Autonomous Line Management System. Also, the test method of software expansion take the case of route control subsystem.

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A Preliminary Study to Apply Group Control System to Lifts for High-rise Construction (초고층 공사 리프트의 그룹제어 시스템 적용을 위한 기초 연구)

  • Kim, Taehoon;Lim, Hyunsu;Kim, Chang-Won;Kim, Seung Woo;Cho, Hunhee;Kang, Kyung-In
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.05a
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    • pp.260-261
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    • 2017
  • The objective of this study is to propose the basic design plan of system by comparing and analyzing application environment of lift and elevator group control system, as preliminary study for the application of group control system to lifts for high-rise construction. The basic design plan is suggested in terms of group control algorithm, hall call system type, operation information recording device, information communication method, and operation method. The results of this study can be used as basic data for software and hardware design for application of group control technology of lifts for super tall building construction and ultimately contribute to improve the operation efficiency of lift for high-rise construction.

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Safety Assessment and Behavior Control System using Monitoring of Segmental PSC Box Girder Bridges during Construction (세그멘탈 PSC박스거더교량의 시공간 계측모니터링을 통한 확률적 구조안정성 평가 및 제어 시스템)

  • Shin, Jae-Chul;Cho, Hyo-Nam;Park, Kyung-Hoon;Bae, Yong-Il
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.5 no.3
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    • pp.191-201
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    • 2001
  • In spite of the increasing construction of segmental PSC box girder bridges, the techniques associated with real-time monitoring, construction control and safety assessment during construction have been less developed compared with the construction techniques. Thus, the development of an integrated system including real-time measurement and monitoring, control and safety assessment system during construction is necessary fur more safe and precise construction of the bridges. This study presents a prototype integrated monitoring system for preventing abnormal behavior and accidents under construction stages, that consist of behavior control system for precise construction, reliability-based safety assessment system, and structural analysis. Also, a prototype software system is developed on the basis of the proposed model. It is successfully applied to the Sea-Hae Grand Bridge built by FCM. The integrated system model and software system can be utilized for the safe and precise construction of segmental PSC bridges during construction.

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An intelligent cooling control system for mitigating the cracking risks of mass concretes during bridge construction

  • Ruinan An;Peng Lin;Daoxiang Chen;Jianshu Ouyang;Zichang Li;Zheng Zhang;Yuanguang Liu
    • Advances in concrete construction
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    • v.17 no.5
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    • pp.257-271
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    • 2024
  • During any construction involving mass concrete, it is crucial to control cracking during the placement and curing process. This study develops an intelligent cooling control system that regulates water temperature and flow based on concrete hydration heat, effectively preventing cracking in bridge construction. The system consists of hardware, a neural network-based control algorithm, and an information management system. An optimal cooling control strategy is proposed to dynamically regulate water flow and temperature, preventing cracking by utilizing real-time temperature data, target control curves, neural network algorithms, and cloud-based computing. The intelligent cooling control system has been successfully implemented in controlling cracking risks during bridge construction. It not only mitigates the risk but also provides a convenient management strategy for bridge construction projects. The optimal cooling control strategy ensures high accuracy and stability under unsupervised learning conditions. This intelligent cooling control system can be applied to similar constructions such as bridge, dam, and building that involve the use of mass concrete.

A Study of Redundant Design of a Control Rod Control System (제어봉 구동장치 제어시스템의 다중화 설계에 관한 고찰)

  • Sur, Joong-Surk;Cho, Chang-Ho;Yook, Sim-Kyun;Nam, Chae-Ho;Moon, Tae-Sun
    • Proceedings of the KIEE Conference
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    • 2003.07d
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    • pp.2337-2339
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    • 2003
  • Digital technologies are required to reduce to events due to human fails clarified existing nuclear power plant. When we are trying to retrofit control rod control system from analog system to digital one, new communication network and controller is required to be constructed. In this paper, we are going to introduce experience in developing economic and reliable control rod control system construction. this proposed system consists of redundant POS, communication network, and controller to provide enhance reliability and safety.

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A Study on the Plan Establishing Process Data System for the Process Plan of Construction Works (건설공사의 공정계획을 위한 공정정보 시스템 구축에 관한 연구)

  • 안효수;권춘안
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2001.11a
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    • pp.142-147
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    • 2001
  • Recently, as the field of construction industrial is enlarged and the blanket control system is formed, the process plan considered from initial process formation to construction cost must be systematic and rational. So we have to propose and compose the new process formation system that divides the intention decisive property of construction data, its relationship and the data property according to process definitely and can express and control easily the public ownership of construction data and network process under the peculation control. So this study decides the field formation and construction data of the work according to the ordering and contract way to establish the process data system for the process plan, shows that the lot theory is necessary to form the economical construction field and proposes that the integrated formation system of construction data that is made by code system must be established.

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THE RELIABILITY PREDICTION OF CONTROL CABINET OF CONTROL ROD CONTROL SYSTEM (제어봉 제어 시스템의 제어함에 대한 RBD 분석)

  • Jung, Hae-Won;Sur, Jung-Suk;Yook, Sim-Kyun;Nam, Jung-Han
    • Proceedings of the KIEE Conference
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    • 2003.07d
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    • pp.2055-2057
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    • 2003
  • This paper describes the results of RBD(Reliability Block Diagram) analysis of control rod control system, which is being developed as part of KNICS project. The results of RBD indicate unavailability of control cabinet for control rod control system. A purpose of RBB is to evaluate unavailability of control cabinet, identify the design drawbacks of control cabinet, and propose design improvement to a designer to help design the more reliable control rod control system. This RBD defines the logical interaction of failure within a system.

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Development of Climbing Hydraulic Robot System's Synchronizing Controller for Construction Automation (시공자동화를 위한 크라이밍 유압로봇시스템의 동기제어 컨트롤러 개발)

  • Cho, Nam-Seok;Kim, Chang-Won;Kim, Dong-In;Lee, Kyu-Won;Cho, Hunhee;Kang, Kyung-In
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2011.05a
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    • pp.167-169
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    • 2011
  • Construction Automation as a way to solve the problems of lack of skilled labor by decrease in construction population productivity and quality decrease. We are on the way to develop a construction automation system adequate for domestic circumstances in Korea; it is called RCA(Robotic-crane based Construction Automation) system. Climbing hydraulic robot system is a part of RCA system and makes Construction Factory(CF) climb next floor. The controller can control movement needs to be developed for CF safety. Synchronous control the actual field was applied to the controller logic and synchronous control of the process through which the safety has been verified. The purpose of this study that control of climbing hydraulic robot system behavior on real-time, and to improve safety for overall construction automation system through synchronous motion controller.

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A Study on the economic analysis of the standing water level control system (SAL상수위 제어시스템의 경제성 분석에 관한 연구)

  • Hong, Jong-In;Hong, Seong-Wook;Kim, Sang-Won;Yang, Jin-Kook
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.05a
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    • pp.281-283
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    • 2013
  • In this paper, standing water level control system and a comparison of existing methods (anchor, PDD, DM) and economic analysis was conducted. 1) Cost PDD method (6%), DM system (4%), and the SAL standing water level control system (4%), except for the anchor system is similar to the construction of three methods based on the portion of the anchor system was analyzed that. 2) construction and maintenance costs compared with the sum of the partial was, anchor system (100%), PDD method (39%), DM system (37%), the SAL standing water level control system (21%), the SAL standing water level control system was identified as the lowest cost method of.

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The Effect of Construction Safety Supervision System on Risk Control and Reduction (건설안전감리제도가 위험제어 및 절감에 미치는 영향)

  • Lim, Jin-Sang;Kang, Kyung-Sik
    • Journal of the Korea Safety Management & Science
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    • v.20 no.3
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    • pp.1-9
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    • 2018
  • This study is intended to look into the effect of construction safety supervision system on risk control and reduction. To achieve this, a survey was carried out to 114 companies in construction, ordering, contract and management. The overall findings were as follows. The effect of construction safety supervision system on risk control and reduction showed that factors of supervision system, supervision cost and supervision method had a positive effect on risk control and reduction. And their perception of the introduction of safety supervision system in construction sites according to process showed that there was a difference between them according to the field of ordering, contract and supervision. There was the biggest difference between owner and contractor in double supervision system, but no difference between them in the perception of risk reduction. These results show that all ordering, contract and supervision are positively needed for the introduction of construction safety supervision. This means that there is a difference between owner and contractor in the perception of process according to system operation. All companies agree to system improvement by the settlement of safety supervision system for the prevention of safety accidents and safe construction, but the systematic complement of safety supervision is the burden of contractor. And there is a big difference between owner and contractor in the perception of responsibility and concern for cost burden.