2005 Proceedings of the 22nd ISARC, Ferrara, Italy
Abstract: Current monitoring and control methods rely on massive manual work. As a result, control information is expensive to produce, or generated irregularly. Additionally, the information is only available infrequently - in many cases after the controlled activity was completed - and its quality and integrity are low. The purpose of ...
Keywords: Automation; Data collection; Feedback control; Control methods; Monitoring
Abstract: Computer-Integrated Construction (CIC) is the
capability of a computer system to create models of certain
aspects of the design and construction processes and
consequently to direct them into reality.
The premise of CIC is that the clear-cut separation between
the competencies, know-how and responsibilities has now been
turned upside down by the introduction of information
technology in ...
Keywords: computer-integrated construction, project
modelling, glued laminated timber, computer numeric control, distributed collaboration, concurrent design
Abstract: The paper reviews the scope for automation and robotics in the rapidly expanding field of nuclear decommissioning. The basic strategies for decommissioning are discussed together with the essential physical steps. The role that automation and robotics can play in enabling quicker demolition and at the same time reducing the exposure ...
Keywords: automation, decommissioning, nuclear, robotics
Abstract: This paper describes an innovative construction
automation approach using a new Layered Manufacturing (LM)
process called Contour Crafting (CC), which has been developed
at the University of Southern California. In the CC construction
process, a precise amount of mortar mixture is delivered to make
a concrete mold using robotic techniques. Mortar mixture is
added in a ...
Keywords: Contour Crafting, construction automation, fabrication, rapid prototyping, layered fabrication process
Abstract: This paper deals with machine collaboration in modern construction sites like that proposed in the FutureHome building system and suggests a scenario for implementing a safe collaborative system. The collaboration is meant to happen
between automatic machines and between machines and operators. Safety issues are discussed and treated as part of ...
Keywords: CIC Construction, IT infrastructure in Construction Site, Machine collaboration in the construction site.
Abstract: Mankind has continued challenging to the universe
with curiosity since mid-1950s, and, as a result, the mankind could
step on the moon and launch the satellites and exploration robots
to several planets including Mars to collect desired information.
The construction has contributed to the mankinds development
and abundant life for a long time. The interests ...
Keywords: Space Development, Construction Robot(CR),
Space Construction, Space Construction Robot(SCR
Abstract: Parallel robots have been in existence since the first half of the 20th century. Applications of parallel robots have ranged from tire testing machines to robots for performing surgery. The high load-to-weight ratio and high stiffness of parallel mechanisms sets them apart from more common serial robots. This presentation will ...
Keywords: TermsParallel robots, construction automation, Stewart/Gough platform
Abstract: The paper presents some aspects related to the passive and active protection of the buildings. It is well know that Stewart platform is a mechanism with six degrees of freedom. This main property leads to the idea of its utilization in order to simulate fully the movements of earthquakes. On ...
Keywords: Parallel robots, Earthquakes, Protection of the buildings.
Abstract: In this paper a novel application is presented for a
parallel manipulator to be used as an earthquake motion
simulator. A formulation and experimental results are presented
for a 3-DOF CaPaMan (Cassino Parallel Manipulator) prototype
to simulate point seismograms and 3D earthquake motion. The
rigid body acceleration (linear acceleration, angular velocity and
acceleration) has been experimentally ...
Keywords: Parallel Manipulators; Experimental Robotics;
Abstract: Alduro is a four-legged walking robot. Its main
goal is to operate in rugged terrain, translating the cartesian
operator commands (joystick) into actuator space by coor-
dinating the legs according to the users wish. At the same
time static stability has to be guaranteed, obstacles have to
be avoided and the posture of the main ...
Keywords: Walking Robot, Quadruped, Modular Con-
troller Structure, Hardware Abstraction Layer, Free-Gait,
Abstract: There has been always a workspace problem with parallel mechanisms. We have proposed a parallel mechanism with linear passive joints to adjust link length. This parallel mechanism can have different workspaces by adjusting link length. When these workspaces are combined, it has larger workspace. We have tried to control the ...
Keywords: Parallel Mechanism, Dynamics, Adjustable Mechanical Parameters, Passive Joint Control
Abstract: The paper presents the formulation of general approach to construction of
structural models for elastic manipulators, which can be presented in the form of collection of
connected in series bodies experiencing elastic deformation, and suggests the methods of
changing over to such structure. The paper describes in detail the method of constructing
mathematical models ...
Keywords: building robots, mathematical models, elastic deformations
Abstract: Automation within the range of handling and
assembly applications requires qualified solutions due to the
complex technological processes. The long-term goals are the
reduction of cycle time and an increase of the process quality.
They can be achieved by innovative concepts which are based
on parallel kinematics, realizing higher speeds and accelerations
with constant accuracy compared ...
Keywords: Adaptive Systems, Adaptronic, Parallel Robot, Robust Control, Robust-Gain-Scheduling, Smart Structures
Abstract: A wide family of parallel manipulators (PMs) is the
one that groups all the PMs with three legs where the legs become
kinematic chains constituted of a passive spherical pair (S) in
series with either a passive prismatic pair (P) or a passive
revolute pair (R) when the actuators are locked. The topologies of
Keywords: kinematics, position analysis, parallel mechanisms, parallel structure
Abstract: Spatial parallel mechanisms (SPMs) become
parallel structures when the actuators are locked. Parallel
structures are constituted by two rigid bodies (platform and base)
connected by a number of kinematic chains (legs) with only
passive kinematic pairs. A set of SPMs is the one collecting the
mechanisms which become SR-PS-RS structures. Such structures
have three legs: one ...
Keywords: kinematics, position analysis, parallel mechanisms, parallel structure.
Abstract: The main purpose of tunnel ventilation system is to
maintain CO pollutant concentration and VI (visibility index)
under an adequate level to provide drivers with comfortable and
safe driving environment. Moreover, it is necessary to minimize
power consumption used to operate ventilation system. To achieve
these purposes, FLC (fuzzy logic controller) has been usually
utilized because ...
Keywords: FLC (fuzzy logic controller), real-valued GA (genetic algorithm), tunnel ventilation control
Abstract: Digital inclinometers are used in geotechnical
engineering to monitor lateral deformations of excavation walls,
retaining walls, embankments and landslide areas. Current
conventional slope inclination measurement requires a person to
manually lower a probe into a grooved casing and record
inclination at prescribed intervals as the probe is drawn
upwards. Developing an automated inclinometer system would
enable continuous ...
Keywords: Accelerometers, Automation, Inclinometers, Wireless Sensor Nodes
Abstract: The NIST Construction Metrology and Automation
Group (CMAG) has ongoing research in the application of laser
imaging technologies in construction. Previous work has
primarily focused on terrestrial LADAR scanning for
applications such as terrain characterization, earthmoving
analysis, and targeted object localization. The LADAR systems
used in those research efforts can be characterized by long scan
intervals and ...
Keywords: construction automation, LADAR imaging, 3D range camera, performance evaluation
Abstract: In this paper we present a feasible Home Automation
System scenario based on a very cheap distributed microcontroller
architecture, rather than on devices interconnected by an expensive
commercial bus. The means used for data communication is the
home powerline, so that the system doesnt require placing other
cables in addition to standard electrical facilities.
Keywords: AC Powerline Commnication, Home
Automation, Domotics, S.N.A.P. Protocol
Abstract: In this paper, the authors explained the overview of data
sampling method for development of a location system for workers
using RFID technology. Data is the RSSI (Receive Signal Strength
Indication) from RFID tag attached to the worker installing a
rolling shutter, and was obtained from antennas and RFID readers
set around the construction site. ...
Keywords: Location system, RFID Technology, Building construction site, Discriminant analysis model
Abstract: Recently, the demand for sensor technology has
increased remarkably in all industrial fields. Sensor technology is
closely related to cutting-edge technologies such as semiconductor
technology and minute structure building technology, and thus,
the high demand for small and light devices with high performance
provides the impetus for conducting studies in order to develop
sensors with much ...
Keywords: MEMS, Accelerator, Sensor, Measurement, Tunnel Monitoring, Automation
Abstract: Cement production is an energy intensive process
that consumes a significant portion of world energy. Significant
optimization of the traditional cement grinding process can be
achieved. Control system, automation and monitoring software
assure means of improving the efficiency of the technological
flow and of optimizing the energy consumption in Casial Cement
Keywords: Automation, Microprocessor applications,
Process control, Programmable logic devices
Abstract: In buildings, windows and glazed facades are often
the weak link in protecting the interior from exterior noise. Since
passive means for improving the Sound Transmission Loss (STL)
of glazed facades are very expensive and are effective only at
high frequencies, an active controller that increases the STL in
the low frequency range is an ...
Keywords: ASAC system, Sound Transmission Loss,
building glazed facades, piezoceramic actuators, stack actuators, feedback control
Abstract: Predicting the environment people will be living in
during the next millennium is not easy task, even at all possible.
Film makers continually portray baffling urban decay where
chaos takes over amidst convulsive and apparently
uncontrollable growth. When this is coupled with a grotesque
transformation of human relationships the consequence of a
generalized mistrust in mankinds ...
Keywords: physical, space, virtual, urban planning
Abstract: The fast improvement and the latest years cost decrease of digital cameras allow the use of photogrammetic solutions for 3D modelling, even in not specialized companies.
Keywords: 3D, Close range, Low cost, Representation, Surverying
Abstract: This paper describes a research effort directed to
produce methods to model three-dimensional scenes of
construction field objects in real-time that adds valuable data to
construction information management systems, as well as
equipment navigation systems. For efficiency reasons, typical
construction objects are modeled by bounding surfaces using a
high-frame rate range sensor, called Flash LADAR. The ...
Keywords: No keywords
Abstract: A photograph always makes an image of
objects as they are without any alteration, so that a
photograph is recognized as highly accurate information.
Thus the photograph has been widely used as a record of
site, routine work particularly for construction control and
inspection. As a characteristic of photograph, the point of
view for a photo ...
Keywords: Virtual reality, Progress control, Construction
photograph, Image comparison
Abstract: Automated construction is in high demand in many
applications in the extreme environments such as space structure
construction. In order to avoid exposure of human workers,
construction machines are usually remote-controlled for such
applications. Because of communication delay and narrow
communication bandwidth, such systems require high-level
expertise and also are ineffective and frustrating to the operators.
Keywords: Termsmodular robot; assembly; self-organize; connector
Abstract: The recomposition of fragments is a challenging task
that must exploit all the available information about fragments
and the whole skill of human operators. A new approach to the
recomposition of fragmented artworks is presented. It has being
developed working on the problem of recomposing the St.
Matthew fresco, painted by Cimabue in the Upper ...
Keywords: Virtual aided recomposition, Internet application, Colour correction
Abstract: Accurate analyses of equipment idle time is crucial for the efficient utilization of construction equipment in a large construction project. The less idle time the equipment has, the higher productivity the construction can achieve. However, it is not practical to measure construction equipment idle time by human visual observation. This ...
Keywords: Construction, Digital imaging, Equipment, Idle time
Abstract: The role and benefits of visualization in street and bridge design is introduced and evaluated on
account of real experiments in some Finnish design projects. New 3-D design methods and CAD tools offer total
new possibilities for cooperative design as well as concurrent design. The features of MicroStation CAD and
Tekla Structures CAD ...
Keywords: Cooperative visualization, Concurrent design, Construction, street design, bridge design
Abstract: Some recent experiences of integrated analyses
based on the use of 3D laser scanning and related 3D models will
be presented. In the first place the idea of a 3D model as a multipurpose
virtual database will be focused in relation to specific
case studies where the contributions of surveyors, historians,
engineers and restorers are ...
Keywords: 3D laser scanner, 3D modelling, integrated procedures
Abstract: Attachments and their controls can be connected to hydraulic mobile machines in different ways. The traditional approach is to install hydraulic valves of the attachment close to the operator. Thereby levers of the valves can be reached from the operator seat. This, however, restricts the size and number of the ...
Keywords: CAN, intelligence, mobile machine, proportional valve
Abstract: A small general-purpose teleoperated hydraulic mobile machine is studied at the Institute of Hydraulics and Automation at the Tampere University of Technology. The boom and the bucket of the machine are normally controlled with a joystick. Horizontal movement of the joystick controls the bucket and vertical movement controls the boom. ...
Keywords: CAN, hydraulic, proportional valve, stabilizer
Abstract: Pollution control and landfill remediation are urgent incumbents, and robot technology is effective means to supply safe and worthy solutions, on condition to figure out reliable task-oriented architectures and to enable remote-steered duty cycles by implementing the appropriate software-hardware information aids. The paper presents a noteworthy example achievement, specially addressing ...
Keywords: Remote sensing and control, robot drilling, environment pollution, micro-tunneling
Abstract: Controlling of excavators arm is an important and
basic task in autonomous research of hydraulic excavator at
present, but the behavior of the excavators arm is dominated by
the nonlinear dynamics of the hydraulic actuators. To find a
feasible way to control excavators arm and realize autonomous
excavation, firstly, Full kinematic and dynamic models of ...
Keywords: adaptive robust control, autonomous excavation, dynamic model, hydraulic excavator, kinematic model, motion control
Abstract: Hydraulic excavators have been popular devices in
construction field because of its multi-workings and economic
efficiency. The mathematical models of excavators have many
nonlinearities because of nonlinear opening characteristics and
dead zone of main control valve, oil temperature variation, etc.
Actual test is needed when new component or control algorithm is
developed but many restrictions exist. ...
Keywords: Hydraulic Excavator, HILS, Paper map, AMESim
Abstract: The efficient and unerring development of sophisticated
manipulation machinery strongly relies on the efficient use
of CAE (Computer Aided Engineering) methods. Meanwhile
these methods more and more spread into areas, which have been
so far domains of so called VR (Virtual Reality). This encompasses
the design aspect as well as the simulation of an already
Keywords: CAE, Real-time simulation, multibody systems
Abstract: The paper deals with the consolidation of rocky
slopes and walls and proposes enhanced automation and original
solution to avoid risky undertakings, when firming-up is
accomplished to safeguard peopled areas, highways, dwelling
houses or public works. The topic shows growing environmental
concern, aiming at removing human operators, unless, possibly,
for preliminary in-site set-ups. The prospected solution ...
Keywords: Design methodology, Legged locomotion, Mechatronics, Telerobotics.
Abstract: The paper proposes a new highly automated drilling
system able to create holes up to 20 m depth in rocky walls using
standard 1.5 m length rods. The drilling system, to be used to
automate rocky walls consolidation, has to be positioned in the
points of the map earlier defined by the geologist; for ...
Keywords: Automation, Construction Robotics, Drilling system, Remote handling
Abstract: This work is concerned with the development of State Dependent Parameter, Proportional-Integral-Plus (SDP-PIP) control of a prototype robotic arm called Starlifter.
Keywords: PIP Control, Construction Robotics, SDP-PIP control, Partial Linearization by feed back
Abstract: During the eighties, the construction industry in
Japan was in trouble. The image was bad, too many fatal
accidents happened on the construction sites and craftsmen
preferred to work in other industries. In addition, the space for
constructing high-rise buildings was minimal, especially in the
big cities. This is why in the nineties, the leading ...
Keywords: Construction Systems, High-rise Buildings, Process Design, Process Simulation
Abstract: The design style form, is the different current
thought and the local characteristic, the penetration idea but
gradually develops into has the representative design form. One
kind of typical style form usually is and the local humanities
factor and the natural condition close correlation also must have
in the creation the idea and the model ...
Keywords: architectural master, designing style, fractal dimension, architecture analysis
Abstract: What are the considerations when opting for high-rise
building? What construction techniques for the logistics are
applied in Europe? What ecological innovations are applied?
What are the technical conditions for combined use of high-rise
building seen from a vertical point of view? What are the
differences in technical aspects of high-rise construction in the
world? What ...
Keywords: High-rise building, development, clients,
differences between continents, combined use in a vertical way, innovations, ecology
Abstract: Tensegrity is a technology that can be applied to
structures and its use can influence the construction time
efficiency and project management in general. A significant
drawback for a systematic application of tensegrity structures in
the construction industry is the particularly complex geometry
that engineers and architects have to generate in a two or three
Keywords: No keywords
Abstract: The building construction industry in Europe is
now experiencing new forms of procurement and production
systems, reflecting a matured market client/user-dominated,
where the demand of new building is both for high-quality and
low costs. The current state-of-the-art in building procedures
must be improved, according to the dynamism of economic,
social and technological factors that greatly affect ...
Keywords: industrial, flexible, demountable, buildings,
customer satisfaction, collaborative engineering, comakership,
Abstract: The paper examines the economy and benefits of 3-D design method in concrete bridge engineering. New 3-D CAD design tools and 3-D measurement methods were developed and tested in the several real bridge construction projects in Finland during 2001-2004. The paper describes these observations and suggests some conclusions for future ...
Keywords: bridge design, 3-D CAD
Abstract: Information technology can be generally understood as techniques and methods needed for creating,
processing, refining, transferring and utilizing information through different working processes of construction.
For managing information process different measurement, software, modeling, information communication as
well as numeric control technologies are needed on the operational level. A visionary model of automated total
Keywords: Construction, Total process, Information technology, automation.
Abstract: This paper deals with fully automating the pavement
lane painting operations utilizing robotic technology. This study
includes a novel design of robot structure that can be easily
installed on support commercial truck and image processing
algorithms that can recognize deteriorated lane marks. With this
robot system, a single operator within a cab is capable of ...
Keywords: onstruction Robots, Kalman Filter, Lane Mark, Lane Painting Robot
Abstract: this work simulation and implementation of the
locomotion control of a single sliding suction cup robot, named
Alicia3, is described. The main purpose of this kind of system is to
explore vertical walls to search for potential damages or
problems on oil tanks or dams. By using this system as carrier, it
will be possible ...
Keywords: Climbing robot, locomotion control, maintenance, inspection
Abstract: This paper addresses some control issues of a
robotic amphibious vehicle that can serve as a general
framework for automation of tractors used in construction.
These include the vehicles low-level dynamic equations, the
development of its braking control system, kinematics in
interactions with ground and the slip problem. Simulation and
real-time results to date are presented.
Keywords: Unmanned Ground Vehicle, dynamic and
kinematic modelling, skid-steering, sliding mode control, slip
Abstract: Quality management of the construction process is
finding its way into the construction industry and authorities.
with the goal of higher profitability, increased efficiency, reduced
cycle-time, decreased call-backs and warranty work, and
increased customer satisfaction. To reach a total quality
management throughout the whole lifecycle of a construction
(consisting of the steps 'planning', 'design', 'construction',
operation and ...
Keywords: Automation, ISO, Life cycle costing, Quality assurance, Quality control.
Abstract: Automation in construction is one of the important
issues in the field of robotics, but is distinct from factory
automation (FA). Because of variations in materials and
management, the role of automation in construction is often
limited. A curtain wall is a large, heavy breakable object and
requires precision installation, making it a better candidate ...
Keywords: Curtain-wall, Automation in Construction,
Progress Management, Optimal Mechanic Design, TRIZ Method,
Curtain-wall installation Robot, Construction Process Analysis
Abstract: Inspection robots are used in many fields of
industry. One application is monitoring the inside of the pipes
and channels, recognizing and solving problems through the
interior of pipes or channels. This ability is necessary especially
when one should inspect an underground pipe. In addition, many
sensors are used on these robots to improve the ...
Keywords: control, inspection, monitoring, nondestructive test
Abstract: one of the most important requirements in
repairing and maintaining of pipelines is the ability to monitor
and evaluate the pipes interior. This work deals with the design
and prototyping of an apparatus to traverse piping systems for
inspection, cleaning and or examination of the piping systems. At
first, the existing pipe crawlers are studied ...
Keywords: In-pipe inspection, Nondestructive test, Robot
Abstract: Pipe inspection is a very important issue in
construction. The inspection of low diameter canalizations is a
pending issue nowadays, however it would help to repair and
maintain a large amount of installations. In this article the lines
that are followed to build a robot that is capable to move inside
pipes of less than ...
Keywords: microrobot, inspection, modular, multiconfigurable
Abstract: In this paper a study of feasibility is presented for
using robots or robotic systems in novel applications concerning
with activities related to analysis and restoration of historical
sites of architectonic interest. The work has been developed
within a collaboration between DART and LARM Laboratories,
of University of Cassino. Design requirements and peculiarities
of operation of ...
Keywords: Automation, architecture Analysis and survey, Non-industrial applications of Robots
Abstract: A number of problems in the construction industry could
be solved with the aid of automation and robotisation
technologies. There are indications that automation and
robotisation processes are similar to transition processes.
Recent years have seen a good deal of research into these
kinds of often complex processes and how to manage them.
This knowledge may ...
Keywords: No keywords
Abstract: In this paper we propose a Petri net within a
diagnosis system for construction design. We assimilate the
construction process with an assembly process that composes
parts and/or subassemblies into a unique product. We assume
that the assembly supervisor (AS) system is distributed, and it
solves several local AS attached to the nodes of the ...
Keywords: Petri nets, diagnosis, assembly process, objective function
Abstract: This research has shown the difficulties associated
with the GIS and the flooding evacuation path search through the
huge searching space generated during the network analysis
process. This research also presents an approach to these
problems by utilizing a search process whose concept is derived
from natural genetics. Genetic Algorithms (GA) have been
introduced in the ...
Keywords: Genetic Algorithms, Network Analysis, GIS, Evacuation Path
Abstract: This paper puts forward a framework for
benchmarking appropriate remuneration schemes for optimum
labour productivity in highly unique construction industries in
modern engineering practice. Socio-economic motivational
factors among the various stakeholders have been identified and
analyzed in order to incorporate in overall decision making
process. The research aims to develop an automated decision
support system (DSS) forecasting ...
Keywords: Multi-criteria decision analysis, AHP, fuzzy preference modeling, incentive program
Abstract: The sequence of design activities is vital,
particularly in interdisciplinary projects. Sequencing of
activities is influenced by the information dependency among the
activities. The dependency relationships among the design
activities in a project are of three types independent, dependent
and interdependent or loops. Interdependent activities (or loops)
require assumed information to start and progress. If ...
Keywords: Dependency Structure Matrix, Project Planning, Information Flow, Construction Design Projects
Abstract: Combining the design-build and fast-tracking
delivery methods, this study aimed to reengineering the
fast-tracking processes across both organizations of designer and
constructor, so that fast-tracking processes in the design-build
team can span across organizational boundaries and are composed
of cooperating workflows executed in different organizations. For
this purpose, two subjects are described in this study, namely, ...
Keywords: design-build, fast-track construction, business process reengineering (BPR) , virtual enterprise (VE), intelligent agent (IA)
Abstract: Conceptual cost estimate plays an essential role in
project feasibility study. In practice, it is performed based on
estimators experience. However, due to the inaccuracy of cost
estimate, budgeting and cost control are planned and executed
inefficiently. Support Vector Machines (SVMs), an Artificial
Intelligent technique, is used to conduct the construction cost
estimate. The algorithms of ...
Keywords: Construction Cost, Conceptual Cost Estimate, Support Vector Machines
Abstract: Finding the shortest path between any two nodes in a network is a classical problem in a number of research areas. Although some general shortest path algorithms have already been developed, such as Dijkstras shortest path algorithm, in some situations, their computation complexity is too high to be of any ...
Keywords: 1-IRS, dynamic interval routing schemes, large indoor area routing, shortest path finding
Abstract: Mobile robotics can be successfully applied for 3D
environment exploration and reconstruction. Here, a vehicle
tracking system is described based on combining laser and
camera information aiming at building maps of unstructured
environments. The proposed system integrates a ground-fixed
CCD camera with a phase-shifting laser to follow the vehicle
moving across the environment.
The method comprises two ...
Keywords: Mobile robotics, laser measurements, environment reconstruction, mapping.
Abstract: Building the planar map and a 3D model of the
environment is a fundamental task for a mobile robot that , using
several and properly configured equipments and appropriate
software modules, can reach these goals with high precision and
in an automatic way. Such capability can increase the efficiency
and the quality of 3D reconstruction ...
Keywords: Autonomous Robot Navigation, Range Sensing, Planar Map Construction, 3D Reconstruction
Abstract: The importance of the wireless energy transmission is
emphasized for the actual operation of robots. Examples of
application such as a lunar rover mission for the ice exploration,
rescue robot for nuclear accident and laser driven kite plane are
shown. Problems to be solved are discussed for more extensive
utilization of the technology.
Keywords: laser, energy transmission, solar cell, laser diode, rescue robot, lunar rover
Abstract: The paper presents a new system for automatic
control of the position of finishing beam of a machine for the
deposition of asphaltic mixtures. The system uses an inertial
transducer for measuring the inclination angle of the beam. The
transducers functioning is without mechanical contact, the
variations of the inclination angle being directly transformed into
Keywords: control system, declivity angle, finishing beam, inertial sensor
Abstract: With the complexity of construction process, process information visualization and representation is often key research issues. Among those issues, when the problematic events occurred and need attentions of responsible persons, the notice methods are often applying multiple communication media such as vocal communication, SMS messages and pictures taken from the ...
Keywords: Ambient interface, construction information management, information visualization, intuitive manipulation
Abstract: In the last few years, automation of slewing cranes is gaining more and more importance in transport and handling processes. However, each operation of crane with rope-suspended loads provokes swaying movements of load. Neutralization of these swaying movements represents a key problem when high handling speeds, operational reliability, accurate traveling ...
Keywords: slewing crane, modeling, anti-sway, optimal control
Abstract: Within the scope of construction supply chain,
various uncertainties arising in the processing procedure lead to
difficulties and impracticality in structural planning. As a result,
consistency in individual job function and standardization of
components of the production process, which is also known as
"industrialized construction," become the major topic for
discussion in the last few years. ...
Keywords: industrialized construction, prefabrication storage and transportation, supply chain, optimization
Abstract: The mobile automated production line for the manufacturing of prefab wood
houses permits to organize the output of required quality products in a distance from
industrial centers without engineering operational bases and high-skilled staff. It is capable
to meet the requirements of various designs, to maintain the high effectiveness and reduce
different forms of ...
Keywords: mobile production, wood house, robotic, automation
Abstract: This paper presents the concept used to construct a complex residential Tilt-Up-Panel structure utilizing 3D-Modeling and animations. The residence is comprised of 108 panels of varying rectangular shapes with "dog legs" and window and door "cutouts" that look like an assembled jigsaw puzzle. The erection and installation procedure calls for ...
Keywords: Complex structure construction, 3D Animations, 3D Visualizations, Layout Optimization, Crane Selection
Abstract: In construction of bridges with cast-in-place
concrete slabs, we often observe that materials of floor slabs are
conveyed by human power in construction sites where
transportation of materials by cranes or other large and heavy
equipments are restrained. Since a possibility of substantial cost
reduction was anticipated through rationalization of such
conveyance work, we developed the ...
Keywords: Cast-in-place concrete slabs, Method of conveying materials, Monorail, Self-propelling carriage, Rationalization of construction
Abstract: Topics such as reorganization, use for new
purposes and refitting gain more and more significance in the
building sector. The stock of existing buildings often suffices
concerning quantity and amount of space. Usually there is a solid
basic substance, which demands only a repair of surfaces and
above all an actualization of the technical building ...
Keywords: fast-connector, installation, prefabrication,
refitting, reorganization, subsystems, technical instrumentation
Abstract: Among the goals of intelligent soil compaction is
feedback control of vibration frequency, force amplitude, and
forward velocity to optimize the compaction of soil. The
development of a robust model structure for feedback control
and/or soil parameter identification for continuous quality
control/quality assurance requires comprehensive information
about the machine's behavior, e.g., vibration characteristics. This
paper describes the ...
Keywords: Intelligent Compaction, Vibration Monitoring, Accelerometers, Hall Effect Sensors
Abstract: Our research shown that there are two
main reasons of poor directional stability of articulated tractorstoolcarriers:
a small frame articulation which always occur due
to different reason and limited perception of driver which has
insensitivity zones of lateral and angular location. On this basis
the principle for stabilization of steering system was worked
out. In this ...
Keywords: Articulated frame vehicle, directional stability, driver aid system, simulated investigation
Abstract: Our group developed a method for planning of scooping point and approach path as a part of our ongoing research on autonomous loading operation of wheel loader at construction sites.
The planning of scooping position and direction is obtained through processing pile model. The pile model represents shape and volume of ...
Keywords: loading operation, path generation, scooping wheel loader
Abstract: Automation of loading of bulk media, or autoloading by
an excavator, implies that an excavator for soft rock or
particulate material loads its bucket successfully without the
intervention of an operator. The subject has been under
investigation for several years now. Nevertheless, the result of
research has not yet reached to the level of implementation ...
Keywords: Autoloading, Automation of excavation, simulation Front-end loader, Simulation of soil digging
Abstract: The Army use bridges to cross narrow water and
terrain obstacles. The bridges are carried on wheel or caterpillar
vehicles then they are laid on obstacle. Generally the bridges are
not put by crane, but by special manipulator - called manipulator
of mechanized bridge. This manipulator structure depends on
kind of bridge and way of ...
Keywords: kinematic structure, manipulator, mechanized bridges
Abstract: The paper addresses a typical application of the
hydrostatic transmissions, i.e. the locomotion of vehicles. It is
proved that if a full traction scheme is adopted (with hydraulic
motors on both axles) the contribution of the front and
rear axle to the overall traction capacity can be changed by
acting on the displacement setting of ...
Keywords: fluid power, hydrostatic transmission, modelling and simulation, traction control
Abstract: The present work considers a double wedge soil cutting model, suitable to describe the soil-tool interaction in automated digging processes. This one or a similar model will be the base to reach a set of equations by which to fit online typical soil and tool parameters, instead to fit these ...
Keywords: Automation, digging, soil, online fitting
Abstract: In construction scheduling, problems can arise when
each activity can be started at different time points and the
resources needed by the activities are limited. Moreover, activities
have required conditions to be met, such as precedence
relationships, resource demands, etc. To resolve these problems, a
two-phase GA (genetic algorithms) model is proposed in this
paper, in ...
Keywords: Resource-constrained project scheduling;
genetic algorithms; time-cost trade-off; resource
Abstract: The Application of IT is not as popular as other areas at
Construction Industry in Taiwan. Since IT can help enterprises to
integrate most complex information, we can make big progress in cost,
quality and service. Construction Industry has to integrate surveying,
planning, design, structural design, shop drawing, contracting, valuation,
and so on, we need ...
Keywords: Estimate, MS Project, Schedule Control, Site Records
Abstract: In order to maintain ecological environment, protect
limited natural resources, promote the quality of life, and advance the
eternally usage of all precious resources, we have some good
achievement in both industrial circles, government official areas, and
academic communities. Since each engineering method will cause
different impact, we need to effectively grasp the biological information
Keywords: Database, Ecological Engineering, ER Model, GIS
Abstract: The 2004 NIST interoperability cost study
estimated an annual cost burden of $15.8 billion due to
inadequate interoperability in the capital facilities segment of
the U.S. construction industry. The $15.8 billion estimate is the
sum of individual annual cost burdens for four key stakeholder
groups: architects and engineers ($1.2 billion); general
contractors ($1.8 billion); specialty fabricators ...
Keywords: buildings, economic impact evaluation, industrial facilities, integration and automation technologies, interoperability
Abstract: Real-time decision-making with partial information
is commonplace in the daily tasks of a construction
manager/engineer. However, traditional decision support systems
(DSSs) do not support partial information inference. Data
pre-processing was adopted to solve the data-incompleteness
problem. Unfortunately, such approach may be biased. This
paper presents a newly developed neuro-fuzzy system, named
Variable-attribute Fuzzy Adaptive Logic Control Network
Keywords: neuro-fuzzy system, real-time decision making, partial information, AI
Abstract: This paper presents an integrated Web-based Cost
Estimator (iWICE) system. The iWICE incorporates the
influence of site conditions into a previous developed Web-based
Intelligent Cost Estimator (WICE) system for highway
construction projects. A VaFALCON neuro fuzzy system is
employed to construct the site condition knowledge-based system
that provide modifications for work unit costs from WICE.
Moreover, VaFALCON ...
Keywords: conceptual cost estimating, neuro-fuzzy system, site conditions, highway
Abstract: The Construction environment has been changed
tremendously for last few years in Taiwan. Since the capital has been
flowed to China, real estate has no more good market. By the way, the
practice of volume ratio makes the problem of vacant houses worse. In
order to solve the land investment pressure, build companies need ...
Keywords: Contract Administrating, Construction Specification, Construction Industry, Purchasing
Abstract: In Italy, monitoring presences in the building site
represents an important problem for technical and organising
aspects and at the same time from the economical and
administrative point of view. The existance of a social clause
concerning the respect of the terms of the national contract signed
by trade unions in the contracts of public ...
Keywords: Building Industrial District, Monitoring, Public Works, Social Responsability
Abstract: Although the Japanese industrial robot companies are proud of their number and sales of
commercial industrial robots, the advanced research and developments are to look at the future
robotics used in new applications. The term Robot Technology (RT) suggests rather broad
meaning not limited to the conventional robot arm and its applications. It ...
Keywords: No keywords
Keywords: No keywords