The University of Toledo
Capacity Building in Construction Program
 

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Sustainable Technology Preparedness

Scott Park Campus
University College                       Division of Comm. & Economic Dev.
Phone: 419.530.3016
Fax: 419.530.6228
cbic@utoledo.edu

SMART COMPUTER BASED

Overview Insight Database Applications Comparison Case Studies References

INSIGHT

Subcategories:

Tablet PC
Quik Ruler Digitizer
Smart Menu Keypad

Thickness Testing Gauges
Digital Hard Hats
Palm Estimator
Handheld Computers
Component Tracking Systems
Project Management Software

 
Tablet PC

   

Wireless technology makes it possible to transmit signals from one smart handheld device to another by means of the internet. Communication is accomplished by transmitting data and information gathered on a portable handheld device to a satellite-based communication center and then transmitting this same information to the home-base computer by use of the internet.

Portable handheld devices such as Personal Digital Assistance (PDA’s) or Mobile Personal Computers (PC’s) are just a few of the devices available to the construction industry which have the ability to wirelessly communicate and provide precise immediate information from a construction project back to the home-base or office computer.

The objective is to remotely collect high-resolution digital data in a logical, consistent manner and then organize that data into an informational database. That information can then be automatically downloaded onto the home-base computer when needed in order to generate accurate reports and documents which would include maps, spreadsheets, photos etc. depending on the application.

Portable Notepad computers are another type of smart handheld devices that uses wireless technology which allow architects, engineers and project managers within the construction industry the ability to acquire data and information in a timely responsive manner in order to make accurate decisions and modifications.

This device provides the user the ability to take handwritten notes, sketch pictures, and even edit existing documents directly on the screen. Like the PDA’s and Mobile PC’s, data gathered can be wirelessly transmitted back to the office in real-time applications. Meaning documents and spreadsheets can be created instantly at the construction site eliminating the need to copy or recreated had sketches and pictures.

Since information gathered on smart handheld devices are captured digitally and generated on demand, reports and other pertinent information that would have taken days, weeks or months to obtain can now be generated the same day.


 
Fig.1 Wireless communication used in handheld devices transmit information from one project site to another project site and even from the project site to the computer home- base by means of the internet.

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Quik Ruler Digitizer

QuikRuler III1 is an exciting new tool that quickly and accurately automates blueprint takeoff and drawing measurement processes. It includes everything you need to get started: a GTCO Roll-Up© digitizer, pointing device, measuring menu and LCD display with a sophisticated, yet east to use built-in measuring program.

QuikRuler requires no special training or computer experience... it only takes minutes to start measuring. For example, to measure an area, simply select AREA from the menu then trace or touch points along the perimeter of the area with the pointing device. The resulting measurement will appear (in English or metric units) on the LCD display. QuikRuler can also be connected to a PC through the USB port to automatically input numerical data into any software program.

QuikRuler is proven to deliver faster, more accurate takeoffs and measurements, boosting performance up to 3 times! It includes all functions necessary to measure lengths, as well as irregular areas in any scale or unit of measurement. In addition, QuikRuler performs standard calculator functions and can count items on blueprints or drawings with ease. More bids means more jobs... Greater accuracy means bigger profits!

QuikRuler III can be used with either a GTCO Calcomp Roll-up III or Super LIV digitizer and it comes with everything you need to get started-measuring menu, LCD display with a sophisticated, yet easy to use built in measuring program and integrated USB connector for easy plug-in play use.

QuikRuler III includes all functions necessary to measure lengths, as well as irregular areas in any scale or unit of measurement. For example, to measure an area, simply elect AREA from the menu then trace or touch points along the perimeter of the area with the pointing device. The resulting measurement will appear (in English or metric units) on the LCD display. QuikRuler III also performs standard calculator functions and can count items on blue prints or drawings with ease.

Best of all, the QuikRuler III is compatible with all leading estimating software, so your investment is protected when you choose to upgrade to the even higher performance of a computerized estimating system.

1 http://www.interwld.com/GTCO/gtco-quik.htm

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Smart Menu Keypad

The Estimator's Keypad"2 —is a productivity tool for professional estimators that simplifies and positions the sometimes overwhelming number of functions and features available with most top-of-the-line computerized estimating systems at your fingertips for easy and quick access.

A thin profile, pressure-sensitive keypad replaces the traditional tablet menu, and works in unison with any GTCO digitizer.

Following are the key benefits of the Smart Menu Estimation keypad.
• Estimating system functions are presented in a clear, easy to understand fashion, at your fingertips.
• Entire digitizing area is freed up for plan measurement.
• Need for a keyboard and mouse is eliminated or reduced when doing takeoffs.
• Can be positioned anywhere on or off the digitizer.

Smart Menu gives the estimating professional the fastest method of entering blueprint information into a computer. And, thanks to its slim profile and small format (9.5" x 13"), Smart Menu can fit in a brief case or laptop case, for use in the field or at home.

It helps to obtain accurate and precise measurements. Eliminating the possibilities of errors attributed to erroneous calculation or lack of experience and skill in estimation. It also provides considerable saving in time and money increasing the profit margins of the construction managers, estimators and other general contractors in the construction industry.

2 http://www.gtcocalcomp.com/smartmenu.htm

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Thickness Testing Gauges

The CTG line of instruments3 are nondestructive, battery-powered handheld systems for measuring the thickness and integrity of concrete slabs, pavements, tunnel linings, walls and other plate-like structures. These systems feature a handheld gauge that records thickness information, a handheld test head for generating and receiving sound waves and a telescoping pole for use on flatwork or overhead. The CTG requires no special knowledge or training. It reliably measures the thickness of any type of concrete using the Impact Echo principle. Use it right out of the case with built-in default concrete parameters, or for greater accuracy simply calibrate the CTG instrument by testing at a point of known concrete thickness as a calibration reference for the speed of sound in that concrete and start testing.

MVX4 is a fully digital thickness gauge with thickness, A-Scan and B-Scan display and Data Logging Capability. The adjustable square wave pulser provides the flexibility necessary for both high resolution and penetration requirements. The MVX is equipped with multiple viewing options to provide users with a complete set of inspection tools: (RF waveform, +/- Rectified waveform, Time based B-Scan, and Large Digits). The A-Scan rectified mode is commonly used for detecting flaws/pits in pulse-echo mode and measuring though-paint and coatings in echo-echo mode. The time-based B-Scan feature of the MVX displays a cross section of the test material. It is commonly used to display the profile of the bottom surface of the test material. Built-in AGC gain control for though-paint measurements in multi-mode operation.

MVX is equipped with an alpha-numeric data logger to provide increased versatility for those custom reporting needs. The built-in transducer types offer increased linearity between transducers. The high speed scan feature speeds up the inspection process by making 32 measurements per second. Use the visual alarm to set hi and lo limits for applications requiring specific tolerances. If the actual thickness value is above or below the limits, a red light is illuminated. Use the find feature to locate the detection point, while automatically adjusting the display to bring the signal into view. It Comes with complete Windows® based software and interface cable for transferring data to & from a PC.

3 http://www.geodetic.com.au/category1093_1.htm 

4 http://www.ndtint.com/ultrason.htm#MVX

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Digital Hard Hats

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Palm Estimator

Managing construction projects or performing skillful task within the construction industry requires the right tool for the right job. Whether that job consists of scheduling, estimating or acquiring informative data, workers today require precise accurate means of obtaining information. In order to assist the construction industry in meeting these requirements many software companies have develop software that will integrate with hand held devices or apparatus in order to assist workers in performing their daily tasks and activities.

Such software developed to assist the construction worker is Mobile Estimating5. Mobile Estimating Software is designed to integrate with Personal Digital Assistants (PDA’s) devices in order to equip estimators with all the tools needed to perform detailed takeoffs remotely. Because the software lets one take a subset of the database generated on the computer desktop to the field – giving one access to insurmountable information – this allows estimators the ability to create brand new estimates right on the spot in the palm of their hands. Then when back at the office this same data can be transferred electronically to the desktop computer in order to instantly generate detailed reports or change orders. So now, estimators can be sure to log all of a project’s information in one place, keeping the user better organized and ready to make estimate additions as needed.

A new software developed for the needs of the construction industry is Model Estimating6. Model Estimating Software is a highly analytical tool which makes it great for value engineering and other applications that require sophisticated parametric estimating. “What if” scenarios can be performed in brainstorming sessions by project managers, architects, and owners. If a building material changes from brick to say, stucco or, if a room size and shape changes, the user can easily know exactly what impact the changes will have on the project before they add up to be a budget problem. The results are precise detailed estimates which help respond in dollars and cents, to ongoing design ideas and changes.


Pre-construction budget analysis

5 Timberline® Office Mobile Estimating Software. http://www.timberline.com/include/pdfs/mobile_estimating.pdf
6
Timberline®Office Model Estimating Software.
http://www.timberline.com/include/pdfs/model_estimating.pdf

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Handheld Computers

Accurate and timely identification, tracking and positioning of construction components are critical for operating a well-managed and cost efficient construction project. With the technology of integrated field sensors, portable computers, wireless communication and real-time kinematics (RTK) global positioning (GPS) equipment, smart handheld tools can now be used in systems which enable the construction industry the ability to develop standards for part identification, inventory tracking of components and a means for real-time positioning of elements in the field by gathering information that can be wirelessly transmitted into a construction project database for future use.

With the first concept individual objects scheduled for arrival to the construction site are previously labeled and tagged at the fabricators using bar codes or radio-frequency transponders. Upon arrival at the construction site the encoded information is scanned directly into a portable computer by use of a smart hand tool and wirelessly relayed to a remote project database.

When a field operator or project manger performs a database query of the scanned objects, information and a graphical representations of that component is presented either in the form of computer aided design (CAD) or in the form of virtual reality mark-up language (VRML).

Another concept that utilizes smart handheld tools involves real-time positioning technology which locates and positions elements in the construction field for real-time applications.

This system consists of two primary components: transmitters and the receiver. The transmitters are set up facing the object or element requiring positioning. Once in place infra-red lights or signals are transmitted and detected only by the system’s receivers.

The receiver is comprised of a hand held computer with screen and two optical lenses. The position of the receiver lenses along with the transmitters form a reference point which allows that point position definition to be projected to the computer. Therefore, the position of any point that the user touches with the handheld receiver tool is accurately and instantly capture. This system can be directly linked to CAD and the receiver then becomes a three dimensional cursor within the CAD environment providing a real-time link between the physical and virtual design worlds.

                                              
The position of the lenses and the known geometry of the receiver allow the point position definition to be projected to the handheld computer
 

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Component Tracking Systems

One of the biggest issues facing the construction industry today is acquiring data and effectively integrating that data into operations and decision making. This is true whether one is a project manager, architect or field operator; accurate information is required in order to compete in this fast growing industry.

The solution to this issue is a handheld device called 7OMNI™. OMNI the Observational Mapping and Noting Instrument has the ability to collect high-resolution digital data in a logical, consistent manner, and then organized that data into a relational database. Users can then conduct pre-programmed querries and automatically generate standardized reports with geo-referenced maps and photos embedded within the text.

Omni consist of (1) A hand-held computer with integrated sensors for collecting and synchronizing a rich array of high-resolution, digital data. (2) A normalized, relational database for storing, sharing, and querying the data. (3) A Geographic Information Systems (GIS) - enabled computer system for analyzing, interpreting, and automatically reporting data.

Equipped with Wi-Fi and Bluetooth wireless communication, OMNI transmit and store data for remote uploading and downloading from field units to the office computer. In the field the unit becomes a robust desk/laptop PC to consolidate data from the field, house the relational database, and then generate GIS-embedded reports.

The principal behind OMNI is that the operator aims the unit at a target and presses the record button, which captures a digital image: obtains GPS positioning, distance, elevation, inclination and other metric attributes; and then stores the data in a database with a time/date stamp and unique project identifier attached. The user can capture their position as well as the calculated GPS coordinates for the target location, simultaneously. This is ideal for rapid mapping, plotting, and reporting unexploded ordinance from a safe distance.


Fig.1 OMNI handheld device

7 The Observational Mapping and Noting Instrument for Mobile GIS Data Capture, Analysis, and Decision-making.
http://www.Surveylab.co.nz/Development_Agreement_Announced.html

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Project Management Software

Constructware8 uses the technology that provides collaboration solutions to construction-related companies that helps them to achieve business success by increasing productivity, improving risk management and reducing costs. Constructware is a web-based application created using Microsoft’s Active Server Pages (ASP) technology. ASP suite is a scalable, secure Internet-based solution that simplifies design and project management, while facilitating communication and collaboration among general contractors, owners, architects, engineers, construction and project managers and subcontractors.

Constructware reduces the inherent risks associated with complex projects by merging the most project essential elements into a single solution that helps organizations manage the entire life cycle of construction projects, from pre-bid to completion. The centralized database would serve as a single source for project and business information which would in return improve the communication and collaboration among all the project participants. The project database is continuously updated to help the owners, architects, engineers, and subcontractors can gain immediate access to the most current information to track project progress and support real-time decision making and analysis. With improved communication and accountability among project teams, jobs are completed on time and on budget, driving profitability.

In addition to its ASP offering, Constructware also offers a client-server-based project management solution designed specifically for trade and specialty contractors. This helps the companies to electronically create, store and track RFIs, transmittals, change orders, purchase orders, pay applications, correspondence and contact information from a single, centralized corporate database.

Constructware is a web-based application created using Microsoft’s Active Server Pages (ASP) technology. Constructware is a hosted communication and collaboration solution that streamlines design and project management among team members throughout the design, construction and facility lifecycle. The centralized toolset enables all parties to communicate and collaborate anytime, anywhere, offering the flexibility to optimize, standardize and automate their entire business processes.

8 http://www.constructware.com

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Page update: Friday, July 21, 2006