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Alain Zarli, Eric Pascual, Daniel Cheung

Information and Communication Technology for Intelligent and Integrated Controls in Buildings: Current Developments and Future Research

Abstract: A common and acknowledged vision today is the one that, in the future, buildings, along with their components, equipments, and their environment will communicate and be able to provide information on their status ubiquitously. This real-time available information will be interoperable via common protocols for holistic automation & control. The whole building will be supervised by intelligent systems, able to combine information from all connected devices, from the Internet or from energy service providers in order to efficiently control HVAC (heating & cooling), lighting, and hot water systems along with energy production, storage and consumption devices inside the building, taking into account the users' needs and wishes. In such a context, ICT is recognised as key for empowering people in the (built) universe in which they live, with smart e-metering and new smart e-devices – as well as becoming fully pervasive in the future optimization of energy in the built environment - where “Energy-efficient smart buildings” are to be buildings which contain systems that manage information for an optimal operation of building energy flows over the whole building lifecycle.In such a context, CSTB has developed an open framework for data collection and processing, to be installed in any built environment. It supports networked heterogeneous sensors and actuators (with appropriate communication protocols technology), allows assembling various “business” functions (with easy evolution and extension capability thanks to a concept of service composition and event-driven management between modules), can accommodate any hardware platform constraint (memory, computing power), and can be executed in any environments supporting a Java SE implementation. The framework is itself based on an OSGi platform. The notion of “sensor” is to be considered in a comprehensive way: physical sensor (analogic or logic), complex sub-system or meta-sensor (e.g. Agilent data acquisition system or alike), or even external services (e.g. getting weather data via the Internet). Fields of applications are energy-efficiency in the built environment, but also Ambient-Assisted Living (AAL), internal air quality assessment, collection of data related to inhabitants behaviours, etc..The REEB coordination action (European strategic research roadmap to ICT enabled Energy-Efficiency in Buildings and construction), as a European R&D technology roadmap initiative (achieved in the context of an EC-funded Coordinated Action - http://www.ict-reeb.eu) has identified ICT contributions to the energy efficiency of buildings mainly via improvement (and corresponding RTD) in integrated design (and indeed ICT tools for Energy-Efficient design and production management), integrated and intelligent control, user awareness and decision support to various stakeholders throughout the whole life of buildings, energy management and trading, and integration technologies. As far as the integrated / intelligent control field is concerned, REEB has fundamentally identified the following areas for future investigation:• automation & control: system concepts, intelligent HVAC, smart lighting, ICT for micro-generation & storage systems, predictive control;• monitoring: instrumentation: smart metering;• quality of service: improved diagnostics, secure communications;• wireless sensor networks: hardware, operating systems, network design.The paper will first introduce to expectations, requirements and potential future scenarios for ICT to support integrated and optimised control in future so-called smart buildings. It will then introduce to the current trend of developments at CSTB in this area, and will present the CSTBox as a tool federating and/or complementing functions (potentially relying on already installed systems) in the built environment. After a short presentation of the REEB project, the paper will follow up with exhibiting the outcome of the REEB project in terms of roadmapping RTD activities in this technological field, also providing with a first insight of their potential impact in the future.Acknowledgement: the authors wish to thank the European Commission (DG INFSO) for its financial support to the REEB co-ordinated action. Moreover, the authors are also grateful to the REEB Consortium partners, namely ARUP, ACCIONA, CEA, LABEIN, TUD, UCC & VTT.

Keywords: Energy-efficient buildings, Intelligent and Integrated Control, REEB project, CSTBox framework, Data collection and storage

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Series: w78:2010 (browse)
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B Vladimir, T Maile, J T. ODonnell, C M Rose, N Mrazovi_

DATA ENVIRONMENTS AND PROCESSING IN SEMI-AUTOMATED SIMULATION WITH ENERGYPLUS

Abstract: Building energy performance (BEP) simulation is increasingly used worldwide to quantitatively justify building design decisions and building operations strategies. It is becoming increasingly obvious that the results of such simulation are often questionable, cannot be trusted, and may lead to wrong decisions. Poor simulation model definition and the use of inappropriately acquired and transformed data are two of the most common causes of this. The use of LBNL methodology for semi-automated BEP simulation data input automates data acquisition and transformation, which removes human decision making from the simulation input data definition process. The first of the three major software components (the Geometry Simplification Tool or GST) is already in use. Work on the second component (an interoperable HVAC graphic user interface for EnergyPlus) is under development. The third component (an internal loads generation tool) will be developed in the near future. The original HVAC GUI for EnergyPlus component has evolved into a BEP simulation platform code-named Mojito. A new internal data model which defines all object/attribute/ relationship sets used in BEP simulation, called SimModel, is the central feature of Mojito. Modeling imprecision is very characteristic of geometry representation in building models submitted by the Architecture-Engineering-Construction-Owners-Operator (AECOO) industry. This, and the lagging and very slow development of CAD utilities that can generate higher-level space boundaries needed in BEP simulation, has forced the development of a new tool (SBT) that calculates higher-level space boundaries from IFC-compliant definition of basic building geometry from any model-based CAD tool. It has also forced the addition of new data transformation rules in GST. This paper describes the principles and high-level views of SimModel, SBT and GST internal architectures, and discusses some of the model and tool functionalities. It also provides a brief summary of quality assessment characteristic of building models generated in the AECOO industry.

Keywords: Building data, semi-automated simulation, simulation software, energy simulation data model, data transformation.

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Full text: content.pdf (1,506,890 bytes) (available to registered users only)

Series: w78:2011 (browse)
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Bloomfield D, Amor R

I-SEEC: an internet gateway to european construction resources

Abstract: For the construction industries to move into the knowledge society and knowledge economy they need to be able to build upon their existing information base. This information base is unique within individual countries (though often with significant overlap between countries, for example, with Eurocodes utilised across Europe) and usually widely dispersed. Drawing together the information resources within nations, and then connecting them with each other to form trans-national resources enables a more effective, informed and intelligent industry. I-SEEC is a collaborative project funded by the European Union with the overall goal of creating an infrastructure to enable and link high quality commercial electronic information services throughout its member countries. This project started in March 2000 and finishes in April 2001. It builds upon a previous EU project - CONNET (CONstruction information service NETwork). This paper provides a description of the final state of the infrastructure, services and business models available through I-SEEC. The countries participating in I-SEEC are Finland, Iceland, Italy, the Netherlands, Slovenia, Spain and the United Kingdom. CONNET provides access to a range of high quality Internet-based services for the construction industry in Europe. It provides both a European entry point to identify resources and national entry points for localised service delivery. The European CONNET entry point provides a range of technology park services as well as industry-specific services. These services include: Management of security services, including installation and monitoring of security systems Help desk, providing a point of contact for potential service providers and for problem resolution Information broker role, enabling transparent access to information in the CONNET services Technology observatory service, including leading edge, current and best-practice technologies Provision of user profiles, allowing personalised delivery of updates in areas of interest Multi-classification support, permitting handling of national systems used across the EC. Inter-service communication services, allowing all comparable services to be identified and a query to be passed from one service to another service to answer. Multi-language support, enabling EC languages to be handled correctly and to provide basic translations between them. The services offered by I-SEEC include a Technical Information Centre, Waste Exchange Centre, Electronic News Service, Calculation and Software Centre, Who's Who in Construction, Specialist Equipment Directory and a Best Practice Information service. The CONNET infrastructure and the I-SEEC information services provide the means to promote effective use of information by construction industry professionals in an efficient and cost-effective way. The ability to pass queries from one high quality service to another in a different country is a substantial contribution to the CIB goal of providing information to achieve performance. This paper draws out lessons learned - both technological and practical - in the course of this multi-country initiative to develop a portal for the construction industry. It also invites participation in this open initiative and describes how existing and developing services across the world can be made interoperable within a CONNET (and any Internet portal) environment.

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Full text: content.pdf (416,345 bytes) (available to registered users only)

Series: w78:2001 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.economic (0.056731) class.deployment (0.046867) class.collaboration (0.041581)
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Permission to reproduce these documents have been graciously provided by CSIR Building and Construction Technology. The assistance of the editors, Mr. Gustav Coetzee and Mr. Frances Boshoff, is gratefully appreciated.


Claudio Mirarchi, Daniela Pasini, Alberto Pavan and Bruno Daniotti

Automated IFC-Based Processes in the Construction Sector: A Method for Improving the Information Flow

Abstract: One of the main challenges in the implementation of BIM-based processes concerns interoperability issues. In fact, even if IFC format is recognised as an ISO standard, different barriers and problems are often encountered in IFC adoption. Generally, obstacles are due to the difficulty of users in personalising import and export options of IFC formats in BIM authoring tools with the consequent possibility of information loss.The paper presents a method for improving the information flow, based on the connection of information stored in IFC files and in external databases through automated processes. Therefore, information concerning one single project can be stored in BIModels and linked to external sources or, conversely, referred from external databases to objects in BIModels.Benefits deriving from the adoption of the proposed solutions concern the limited size of BIModels, the possibility to store information not considered in the IFC schema, and the reduction of IT skills required to building operators for exchanging information in an interoperable way.

Keywords: Building Information Modelling, Sharing Data, Interoperability, IFC

DOI: https://doi.org/10.24928/JC3-2017/0274

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H U Gke, K U Gke

Interoperable Energy Management System Concept for Energy Efficient Smart Buildings

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Full text: content.pdf (296,297 bytes) (available to registered users only)

Series: w78:2013 (browse)
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Hesham Osman, and Tamer E. El-Diraby

Interoperable Decision Support Model For Routing Buried Urban Infrastructure

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Series: w78:2006 (browse)
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I. A. Mutis

Semantic tags for collaboration in construction formalized within a social network framework

Abstract: As construction projects require tracking an ever-increasing number of parameters to operate with suppliers, vendors, and the entire organization of a construction firm, particularly in exchanging, sharing, and integrating information, a semantically rich form to represent information is required. Semantic tags for interoperable construction workflows represent a novel approach to support the exchanging, sharing, and integrating of information. This approach proposes a semantic main form of representation of construction concepts to assist in the communication between actors. The proposed approach is based on the notion of the social network framework. The assumption is that construction actors relationships in communicating information can be expressed by patterns of relationships defined in a social network structure. Semantic tags leverage the communication of information within the dynamic social network grid by employing a concept-description that contains metadata. The purpose is to semantically enrich the product or project data. It is expected that the inclusion of additional semantics will overcome inefficiencies within interoperability.

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Full text: content.pdf (510,147 bytes) (available to registered users only)

Series: w78:2009 (browse)
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K. U. Gkce, R. J. Scherer, H. A. Dikba?

IFC based computer-integrated construction project management model

Abstract: In this paper, we present a conceptual framework enabling to manage broad set of activities supported by multi-module software application for construction project management. In order to maintain an integrated generic structure to enable interoperable use of standardized data in a general CPM model, we proposed an IT environment which is based on a formal process methodology, standardized product and process model (IFC), and overall architec-ture integrating technical (design) work, construction process planning and project management in an open and modu-lar manner. In this context, we developed Construction Management Phases for Software Interoperability, Organiza-tional and IT Management Processes with using of ARIS methodology in order to implement IFC views. Based on this, we outline a web-based environment enabling to plug in all component tools via a common client, providing a coherent GUI.

Keywords: integrated project management, product and process modeling, web services, IFC, ISO

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Full text: content.pdf (412,915 bytes) (available to registered users only)

Series: w78:2007 (browse)
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Koivu T J

Future of Product Modeling and Knowledge sharing in the FM/AEC industry

Abstract: This paper describes a technology foresight study performed in co-operation with Stanford University (CIFE) and VTT Building and Transport. The main aim of the project is to provide information for decision-makers about the future of interoperability and product modeling. Information was collected about technologies and their use, conditions affecting the use of the technologies and development trends. The project had two main phases: state-of-the-art and scenario building. Different methods were used for collecting data for the state-of-the-art phase. A two-round Delphi survey complemented interviews and literary study. Scenario planning and technology roadmapping were used to formulate alternative pictures of how product modeling and use of interoperable software might affect the industry. The scenarios are based on two main forces seen as the ones most likely to shape the business environment: the adoption non-proprietary approach in developing software and the adoption of value-adding approach in providing services during the life cycle of facilities. Based on the survey and data, the most wanted scenario is identified as well as different roadmaps toward most wanted scenario.

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Full text: http://www.itcon.org/2002/9 (available to registered users only)

Series: itcon:2002 (browse)
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M Lo Prete, L Dal Cerro, V Bonora

Canope des Halles de Paris Case study for an innovative digital approach to tender competition

Abstract: The traditional tender competition procedure embeds a series of negative aspects, linked to the use of 2D technical drawings that describe geometries and technological solutions of which an architectural project is composed. The technical language linked to orthogonal projections is no longer a good medium to describe contemporary architectural concepts: during the tender a potential incoherence generated by 2D representation may lead to a not accurate evaluation of costs, risks, and time. The goal of this study is to introduce an innovative concept of digital tendering, integrating the traditional set of 2D technical drawings into a 3D interoperable model based on the widely diffused IFC format, detached from specific commercial approaches. This implemented documentation will help construction societies to better comprehend the complexity of the technical solutions, through a pedagogic 3D model which contains all the information needed for economical evaluation and a series of direct links to the whole project documentation. Canope des Halles project was approached during the PRO phase, which preceded the tender competition. During this period the company DECODE played an intermediary role, developing a 3D master model based on technical information and made it evolve through a verification and correction process. Once the model was completed, DECODE acquired the documentation for the tender and started to fill the 3D model with semantic information useful during the calculation phase. Then the geometries were linked to their specific 2D technical documentation and the whole master model was exported into an IFC interoperable format. Construction companies received from the Paris City Hall a dvd, containing the 4D model (3D geometry + information), the pdf documentation attached to this and the eveBIM viewer. Into this innovative approach eveBIM represented the pedagogical instrument able to increase the comprehension of the project and provide a technical support to the calculation process through a paper-less approach.

Keywords: Digital tender competition, IFC, Interoperability, Master model, ICT strategies.

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Full text: content.pdf (466,610 bytes) (available to registered users only)

Series: w78:2011 (browse)
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