Showing papers in "Automation in Construction in 2007"

TL;DR: A novel control law based on computer vision for quasi-stationary flights above a planar target is presented, which uses the homography matrix computed from the information obtained from the vision system.

TL;DR: In this article, the authors outline some of the major issues facing construction technology and give examples of the use of large scale Digital Fabrication in the industry and define the term Freeform Construction.

TL;DR: In this paper, the authors proposed a system for inspecting and measuring cracks in concrete structures to provide objective crack data to be used in evaluating safety, which consists of a mobile robot system and a crack detection system.

TL;DR: In this article, an automated system using radio frequency identification technology combined with GPS technology, requiring minimal worker input, is proposed to locate precast concrete components with minimal worker inputs in the storage yard of a manufacturing plant.

TL;DR: This paper presents the adoption of a particle swarm optimization (PSO) model to train perceptrons in predicting the outcome of construction claims in Hong Kong and shows it is capable of producing faster and more accurate results than its counterparts of a benchmarking back-propagation ANN.

TL;DR: A new tool with which the gap between the desired functionality of control information systems and that provided in current construction practice can be identified is presented, which can be used to identify the gaps in this area within individual companies, or at an industry level.

TL;DR: The kinematics and statics of the proposed system are presented, a proof of translation-only motion is provided, and the maximum size structure that can be built using this manipulator is presented.

TL;DR: 3D laser scanning technology, which can acquire high density point data in an accurate, fast way, can provide benefits for refurbishment process in regeneration in the Built Environment.

TL;DR: This paper proposes a continuous, all-location, real-time solution for tracking, positioning construction vehicles by integrating GPS with the vehicle navigation technology called “dead reckoning” (DR).

TL;DR: In this paper, the authors describe a virtual prototyping system called the Construction Virtual Prototyping (CVP) system, which is developed for modeling, simulation, analysis and VP of construction processes from digital design.

TL;DR: In this paper, an integrated change management system is developed to represent the key decisions required to implement changes and to simulate the iterative cycles of concurrent design and construction resulting from unanticipated changes and their subsequent impacts.

TL;DR: In this article, the authors present a process method for the planning of work-flow by combining use of location-based scheduling and 4D CAD in which 3D CAD models are combined with data from construction schedules.

TL;DR: In this paper, a multi-disciplinary building design studio where a shared IFC (Industry Foundation Classes) building model was employed to support a collaborative design process in a teaching context is described.

TL;DR: In this article, the authors developed models for automated labor and equipment control, materials management and control as well as monitoring safety measures, and discussed development issues and the prospects for commercializing such systems.

TL;DR: In this paper, a case study investigating the use of 3D laser scanning and global position system (GPS) to acquire landslide data and to compute earthwork volume is presented.

TL;DR: A 3D virtual world environment is put forward which provides real-time multi-user collaboration for designers in different locations and allows for the different design disciplines to model their view of a building as different representations.

TL;DR: In this paper, the authors investigated in what extent linear autoregressive models with external input (ARX) and autoregression moving average with external inputs (ARMAX) could be used in order to predict the interior air temperature of a building.

TL;DR: The herein presented specification reasoning approach can be seen as a stepping stone towards automated defect detection on construction sites.

TL;DR: In this article, a decision support tool is presented to estimate bid mark-up values in a more systematic way using case-based reasoning model (CBR) to estimate the risk, opportunity and competition ratings.

TL;DR: In this paper, the authors present a case study on the selection of system suppliers and contract negotiation during the ERP implementation of a local construction company in Taiwan, and discuss seven issues: coding system, working process reengineering, priority of ERP functionality implementation, customization, participant roles, consultant role and performance level of subcontractor, which also affected the implementation.

TL;DR: In this article, the authors investigate possible antecedents and drivers that affect the intention to adopt collaborative technologies in the construction industry and highlight the prerequisite organisational elements preceding the adoption decision process.

TL;DR: In this paper, the authors investigated the link between the Construct IT Balanced Scorecard (BSC) perspectives and structural equation modeling to predict IT-induced business performance and strategic competitiveness.

TL;DR: In this proposed model, the algorithm of the grey forecasting model is modified to enhance the tendency catching ability, and Fourier series and Markov chain are integrated within MFGMn(1,1) to model the system periodic and stochastic phenomenon.

TL;DR: In this article, a hybrid Artificial Intelligence (AI) model, the Hybrid ANN-CBR Model (HACM), is developed utilizing the AI branches of Artificial Neural Networks (ANN) and Case Based Reasoning (CBR).

TL;DR: The ontology supports the generation, analysis, sharing and reuse of domain knowledge as required by ETO business processes, thus providing information to support many information intensive business processes such as the evaluation of design alternatives.

TL;DR: In this paper, the authors developed a network flow model for an RMC carrier according to Taiwan's operation situation, that integrates RMC production scheduling and truck dispatching in the same framework, to decide on an optimal RMC supply schedule which also integrates overtime considerations.

TL;DR: In this article, the authors present an approach for generating workspaces that encapsulate spaces occupied by mobile cranes moving during an operation, and assess the effectiveness of the approach in identifying spatial conflicts between mobile crane and building components.

TL;DR: In this article, a flexible model for solving linear scheduling problems involving different objectives and resource assignment tasks is presented, which adopts constraint programming (CP) as the searching algorithm for model formulation, and CP program implemented in this study creates the flexibility for optimizing either total cost or project duration.

TL;DR: In this paper, a method for automated generation of the construction planning is described, where an algorithm is presented that derives the construction order from a solid model of the building and an outlook is presented on a more advanced planning system that includes contractor's specific knowledge for more accurate results.

TL;DR: A middleware framework for integrating heterogeneous building automation systems (BAS) on the Internet that utilizes the OPC technologies in LAN and the powerful communication capability of Web Services to accommodate different communication interfaces/protocols and provide public Web Services methods.