Browsing by Author "Bulbul, Tanyel"

Now showing 1 - 5 of 5
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    Characterizing Virtual Prototype Constructability Programming for the Pictographic Instruction of Procedure
    Johnston, Brendan Ashley (Virginia Tech, 2012-10-08)
    The modern design-construction boundary is facing an unprecedented moment of evaluation. Global applications of building information modeling, including virtual prototyping, factory-based component procurement and industrialized site production are only a few of the forces that threaten to engulf the established façades of architecture, engineering and construction practice. Those professional identities that are unable or unwilling to reach deeply into this oncoming torrent of interoperability, integrated delivery, and infinite domains will be lost. It is even possible that the language of building culture will be washed away forever. Preparations should be made. This research proposes to strengthen available built-project communications. It does so by examining the natural architectonic relationships which exists at the most primitive level of production — about the assembly task. A work and its procedures are investigated through the programming interface of a Virtual Prototype (VP) modeling system. With visualized constructability as its goal, this study highlights the character of VP programming as it translates between design and production information with digital specificity. The results of that investigation fashion a test of a new production communications language with the potential to enrich and refresh the insulate expressions and hollow specification of traditional design communications.
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    A Framework for Object Recognition in Construction Using Building Information Modeling and High Frame Rate 3D Imaging
    Lytle, Alan Marshall (Virginia Tech, 2011-04-01)
    Object recognition systems require baseline information upon which to compare sensed data to enable a recognition task. The ability to integrate a diverse set of object recognition data for different components in a Building Information Model (BIM) will enable many autonomous systems to access and use these data in an on-demand learning capacity, and will accelerate the integration of object recognition systems in the construction environment. This research presents a new framework for linking feature descriptors to a BIM to support construction object recognition. The proposed framework is based upon the Property and External Reference Resource schemas within the IFC 2x3 TC1 architecture. Within this framework a new Property Set (Pset_ObjectRecognition) is suggested which provides an on-demand capability to access available feature descriptor information either embedded in the IFC model or referenced in an external model database. The Property Set is extensible, and can be modified and adjusted as required for future research and field implementation. With this framework multiple sets of feature descriptors associated with different sensing modalities and different algorithms can all be aggregated into one Property Set and assigned to either object types or object instances.
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    An Integrated BIM Framework to Support Facility Management in Healthcare Environments
    Lucas, Jason David (Virginia Tech, 2012-08-07)
    The quality of healthcare environments has been linked to patient safety, patient and staff stress, clinical output, and patient outcome. As part of maintaining the physical environment within the healthcare settings facility managers need to ensure that complex systems are working properly. Facility management tasks need to be completed with minimal interference with clinical services. This is often difficult to do because facility information is often stored in multiple systems and may be inadequate and incomplete. Communication and exchange of information throughout the lifecycle and throughout the operational phase of the building is fragmented. Relevant information and effective facility information management are important for efficient operation and maintenance of the facility. It is even more important when systems are being constantly upgraded and renovated due to new technologies and for the need for facility managers to do more work with fewer resources. This research is examining the link between facility management and clinical activities, especially in terms of information exchange and management. A framework is proposed to help facility managers more efficiently manage healthcare facility information. Case analysis was completed on facility related patient safety events to determine the types of information needed and exchanged through the event's response by facility personnel. The information was then organized into a product model and ontology to help capture, manage, and retrieve the information. The goal of the research is to offer a method of storing healthcare facility information in an efficient and effective manner to support facility managers in their response to patient safety events. This dissertation outlines the objectives of this research and the methodologies used in the case analysis. The development of the product model and information exchanges identified is also discussed. Lastly, conceptual model for a prototype was developed and is presented to demonstrate how the product model and ontology can be used to allow the user to query information and interact with the system.
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    Measuring the Impacts of AR HMD on Users' Situation Awareness During Wood Frame Assembly Tasks
    Qin, Yimin; Bloomquist, Eric; Bulbul, Tanyel; Gabbard, Joseph L. (International Council for Research and Innovation in Building and Construction, 2023-02)
    Advances in the development of Augmented Reality (AR) hardware and software allow for novel opportunities to positively influence the traditional construction industry. Recent research studied the feasibility of various AR devices for supporting construction assembly tasks, however, there is limited work examining the usability of AR head-mounted display (HMD) in relation to construction workers' cognitive skills such as situation awareness. This study evaluated three information display types (paper blueprint, tag-along image and conformal model) during wood frame assembly of three different scales (small, medium, and large) to investigate how AR HMDs impact user's situation awareness with respect to mental workload. Eighteen construction engineering students were recruited in a within-subjects experiment. The findings showed no significant difference in both the mental workload and the situation awareness for all three display types, suggesting that AR displays did not generate significant excessive mental burden or distractions on users in comparison to traditional paper-based information. Specifically comparing the AR displays, the results revealed that user's mental workload was affected by field of view (FOV) restriction in AR HMD, whereas situation awareness wasn't impacted.
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    A Pilot Model for a Proof of Concept Healthcare Facility Information Management Prototype
    Lucas, Jason D.; Bulbul, Tanyel; Thabet, Walid (2013)
    Within the healthcare industry it is important that facility information is efficiently and effectively managed to aid in the successful operation and maintenance of the facility and provide a safe and well-maintained environment of care for patients and staff. In order to do this, a healthcare facility information management prototype was proposed. The goal of the prototype is to allow facility managers to more efficiently and effectively respond to facility related events within the healthcare environment. The prototype was designed by using case analysis methods to identify information needs and draw connections between clinical information and facility management operations. This information was organized into a product model which is used as an ontology to capture, store, and retrieve the information. A conceptual model is developed to demonstrate the potential use of the developed product model in aiding facility managers' responses to facility related events. The conceptual model uses developed Graphical User Interfaces (GUI) that are mapped to the product model to demonstrate the information interactions. Information from one of the analyzed case studies is used as an example to describe the conceptual model development. A walk-through of the model is included to demonstrate how the different GUIs would be used to respond to the example event. This paper discusses the system architecture, the goals of the conceptual model and prototype, and the conceptual model development and validation. Future research strategies for the proposed healthcare facility information management framework are also addressed.