Welcome
Digital library of construction informatics
and information technology in civil engineering and construction
 

Works 

Search Results

Facilitated by the SciX project

Hits 1 to 10 of 12

C Bogen, M Rashid, E W East

A Framework for Building Information Fusion

Abstract: Data reported by supervisory control and data acquisition (SCADA) systems is critical for evaluating the as-operated performance of a facility. Typically these systems are designed to support specific control domains, but facility performance analysis requires the fusion of data across these domains. Since a facility may have several disparate, closed-loop SCADA systems, resolution of data interoperability issues (heterogeneities) is a prerequisite to cross-domain data fusion. There are no general methods for resolving these heterogeneities in the context of a nonproprietary core building information model (BIM) format. This article describes how these standard data models are applied to a general framework for the integration of building information models and building sensor telemetry. Given the number of very large corporations, each with its own research agendas and proprietary products, and the large number of installed buildings, each with its own control systems, yet another control scheme or technology will not make an impact on improving this market. The authors propose solutions to these underlying data heterogeneities by adopting existing data standards and introducing new data schemas (only when necessary) based on consensus between industry, government, and academic stakeholders. The Industry Foundation Class (IFC) 2X4 controls domain is the foundation of the authors’ decomposition of SCADA systems as components, assemblies, and connections that relate to other objects in the facility. The Open Building Information eXchange (oBIX) provides the basis for the authors’ representation of raw telemetry streams that map to the underlying IFC model. The system concept described in this article is part of an effort that is expected to produce an Industry Foundation Class Model View Definition (MVD) for building SCADA systems, product type templates for building SCADA products, the architectural design of an integration platform, and the specification of common predictive and analytical functions for deriving usable intelligence from the integration framework.

Keywords: Smart Buildings, Data Fusion, Building Controls and Automation, Building Information Modeling (BIM), Industry Foundation Classes IFC

DOI:

Full text: content.pdf (216,249 bytes) (available to registered users only)

Series: w78:2011 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.


E Collins

Experience in CAD 1976 - 1984

Abstract: During 1976 a building modelling system (RUCAPS), developed in the UK, was used by an architectural practice to assist in preliminary design, detailed design, and contract documentation for a major Middle East University. This system was used extensively for architectural input and it was accepted that backgrounds in plot form would be issued to the other consultants concerned, none of whom operated CAD facilities and were all based in the USA.

Keywords:

DOI:

Full text: content.pdf (767,269 bytes) (available to registered users only)

Series: w78:1984 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.


E W East, D K Smith

The United States National Building Information Modeling Standard: The First Decade

Abstract:

Keywords:

DOI:

Full text: content.pdf (323,760 bytes) (available to registered users only)

Series: w78:2016 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.


E. East, N. Nisbet & J. Wix

Lightweight Capture of As-Built Construction Information

Abstract: Discussions of Building Information Modeling (BIM) often center on commercial software and building geometry. Such discussions typically ignore the need for information capture and exchange during construction. This paper identifies several patterns of information exchange needed for the capture and delivery of construction handover data. A prototype tool set, bimServices, has been developed to support of these information exchange patterns. The paper also includes specific examples of how the prototype tool would be used to capture and transmit as-built construction information.

Keywords:

DOI:

Full text: content.pdf (89,294 bytes) (available to registered users only)

Series: w78:2009 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.


E. William East and Jeffrey G. Kirby

Standardizing Contractual Information Exchange

Abstract:

Keywords:

DOI:

Full text: content.pdf (427,388 bytes) (available to registered users only)

Series: w78:2006 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.


E. William East and Jeffrey G. Kirby

Evolving A Building Information Model

Abstract:

Keywords:

DOI:

Full text: content.pdf (428,132 bytes) (available to registered users only)

Series: w78:2006 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.


E. William East, Danielle Love, Nicholas Nisbet

A Life-Cycle Model for Contracted Information Exchange

Abstract: This paper will introduce a process-based building data model that tracks key building information through the facility's life cycle. The specification of batch and transactional exchanges, upon which this process model is based, uses the buildingSMART's Facility Management Handover Model View Definition (FM MVD) as the foundation for transforming paper-based deliverables into usable building information. The FM MVD is the first internationally recognized MVD for the exchange of non-geometric building information.

Keywords: Building Information Model, BIM, Facility Management, FM, Handover, Model View, COBie

DOI:

Full text: content.pdf (239,061 bytes) (available to registered users only)

Series: w78:2010 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.


E. William East

IMPACT OF E-GOVERNMENT ON FEDERAL FACILITY DELIVERY

Abstract: This paper provides a justification for the use of e-Government applications for public facility delivery projects. The costs and benefits from one such system used in public practice in the United States are described. The emerging impacts of e-Government systems on the facility acquisition community are also identified.

Keywords: e-Government, government-to-business, facility acquisition, facility delivery, business process

DOI:

Full text: content.pdf (54,107 bytes) (available to registered users only)

Series: w78:2008 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.


R Al-Sabah, C C Menassa, A Hanna

Evaluating Significant Risks in the Middle East North Africa (MENA) Construction Projects from Perspective of Multinational Firms

Abstract:

Keywords:

DOI:

Full text: content.pdf (277,221 bytes) (available to registered users only)

Series: w78:2012 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.


S Taneja, B Akinci,J H Garrett, L Soibelman, B East

BIM-BASED HYBRID INERTIAL POSITIONING FOR FACILITY OPERATIONS SUPPORT

Abstract: Facility operations often require maintenance personnel to locate critical equipment or find the correct shut-off valve in a mechanical room. Mechanical rooms usually have little to no network coverage. Moreover, facilities usually experience a network outage during building emergencies, such as flooding or power outage. Lack of adequate network coverage limits the deployment of network-based positioning and localization solutions in such environments. Hence, there is a need for an infrastructure-free positioning solution that does not require WLAN network. This paper evaluates algorithms that utilize a navigation network created from BIM-based floor plans for correcting inertial positioning data, which is susceptible to drift errors (Gelb 1974). We have built on top of map-matching approaches that have been used for correcting positioning data from GPS by utilizing road network representations in GIS databases (Scott 1994; Spassov 2007). In particular, we have created a navigation network representation of the indoor environments based on the Medial Axis Transform (Taneja et al. 2011b) for implementing two different map-matching algorithms, namely, a weighted geometric matching algorithm and a topological matching algorithm. We have implemented a prototype that acquires data from a commercial Inertial Sensing Unit, performs map-matching calculations on a portable tablet computer and displays the position output on top of a floor plan on the tablet computer. This paper presents the evaluation of the performance of the two map-matching algorithms in field tests carried out in one of the heavily utilized academic facilities in Pittsburgh, PA. Performances of the algorithms have been characterized in terms of horizontal positioning accuracy of corrected position data (in meters).

Keywords: Facility operations, Inertial positioning, Map-matching, Navigation network

DOI:

Full text: content.pdf (587,753 bytes) (available to registered users only)

Series: w78:2011 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.


For more results click below:

 

hosted by University of Ljubljana



includes

W78




© itc.scix.net 2003
this is page 1 show page 2 Home page of this database login Powered by SciX Open Publishing Services 1.002 February 16, 2003