Browse Topic: Radio-frequency identification

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NASA Goddard Space Communications Workshop PreviewTBMG-4641108/18/2022
Since the first satellite launched over six decades ago, spacecraft have relied on radio waves to communicate with Earth. But radio has its limitations. With more and more satellites now in space and entry of commercial players as well as the growing demand for space services, the field of space communications is primed for disruption.
Sensor-controlled Friction Materials based on Liquid Friction Compounds, Chip-in-Pad Concept2021-01-129610/11/2021
In this paper, the concept of integrating thin-film piezo transducers into friction pads by using a liquid friction material compound (LIQFRIC® HP), which is capable of completely embedding the sensor surface and allowing for the force transfer due to a direct contact between sensor and friction material, is explained. The low thickness of the sensor allows for an excellent ratio of sensor volume / friction volume in the pad. The piezo transducer, besides being able to detect positive and negative pressure changes, can also be used via its EMI capability to allow measurements of changes in the shape (and therefore thickness) of the pad during and after testing. Measuring the pressure distribution, the wear and possible defect situations of the pad potentially opens up new means of friction pad- and brake operations or developments.
Milczarek, Roman Paul
STANDARD FOR TIRE TRACEABILITY CONTENT AND FORMAT FOR THE RADIO-FREQUENCY IDENTIFICATION (RFID) TAG AND ASSOCIATED TIRE DATA SETUSCAR39-1 (Current)11/19/2020
This standard describes a requirement for automotive tire traceability. It includes a definition of the RFID tag and the associated tire data set that can be accessed using the RFID tag as an identifier. The standard describes a unique identification and the associated data set for each tire produced by the tire fabricator. This data will either be provided or transmitted at the time of shipment to retailers, wholesalers or original equipment vehicle manufacturers. Tire identification code and data may be used for error proofing, determining the tire specifications or supporting any inquiries that occur for the duration of its automotive life.
USCAR
RFID-Based System Enables Internet of ThingsTBMG-3638004/01/2020
Pill bottles, coffee cups, and countless other nonelectronic objects could be turned into a network of Internet of Things sensors with a new radio frequency identification (RFID)-based technology. The system, called IDAct, bridges the gap between “smart” electronic devices that are currently part of the Internet of Things and the hundreds of billions of everyday non-smart objects.
Robots Track Moving Objects with Sub-Centimeter AccuracyTBMG-3546111/01/2019
A system was developed that uses radio-frequency identification (RFID) tags to help robots target moving objects with unprecedented speed and accuracy. The system could enable greater collaboration and precision by robots working on packaging and assembly, and by swarms of drones carrying out search-and-rescue missions. Robots using the system can locate tagged objects within 7.5 milliseconds, on average, and with an error of less than a centimeter.
Protecting Medical Consumable Revenue Streams with RFIDTBMG-3533210/01/2019
Hardware manufacturers, including medical device manufacturers, and their product line managers are constantly challenged to increase revenue and profit. For many, the strategy to increase revenue is simple; sell more of the product they produce. Yet, the dynamics and pace of business in this competitive world make that harder than it sounds. This article explores the use of wireless RFID to protect and secure valuable medical technology.
Products of Tomorrow: August 2019TBMG-3488608/01/2019
This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that innovation.
STANDARD FOR TIRE TRACEABILITY CONTENT AND FORMAT FOR THE RADIO-FREQUENCY IDENTIFICATION (RFID) TAG AND ASSOCIATED TIRE DATA SETUSCAR39 (Historical)04/17/2019
This standard describes a requirement for automotive tire traceability. It includes a definition of the RFID tag and the associated tire data set that can be accessed using the RFID tag as an identifier. The standard describes a unique identification and the associated data set for each tire produced by the tire fabricator. This data will either be provided or transmitted at the time of shipment to retailers, wholesalers or original equipment vehicle manufacturers. Tire identification code and data may be used for error proofing, determining the tire specifications or supporting any inquiries that occur for the duration of its automotive life.
USCAR
Passive RFID Tag with Long Range and Wide Coverage CapabilitiesTBMG-3417604/01/2019
Researchers at NASA Johnson Space Center have developed the RFID Tag with Long Range and Wide Coverage Capabilities technology that allows a RFID tag to direct a RFID reader beam signal back in the direction of arrival. This technology requires no added power to provide telemetry for long-range readers by using multiple beams instead of one narrow beam signal. Each of the predetermined number of beams is typically associated with a unique identification number to derive bearing information. This innovation is suited for IC-based RFID tags as well as Surface Acoustics Wave (SAW) tags, which are useful for extreme environments.
The Ultimate ‘Smell Test’: Device Sends Rotten Food Warning to SmartphonesTBMG-3287009/01/2018
When it comes to the “smell test,” the nose isn't always the best judge of food quality. Now in a study appearing in ACS’ journal Nano Letters, scientists report that they have developed a wireless tagging device that can send signals to smartphones warning consumers and food distributors when meat and other perishables have spoiled. They say this new sensor could improve the detection of rotten food, so it can be tossed before consumers eat it.
Products of Tomorrow: August 2018TBMG-3248008/01/2018
This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that innovation.
Pressure Sensor MechanismTBMG-2874204/01/2018
The Pressure Sensor Mechanism is designed to measure or monitor tactile pressure. It is based on passive Radio Frequency Identification (RFID) sensor tags and is applicable to a variety of systems. As RFID sensors transmit information wirelessly, they eliminate many challenges associated with traditional wired systems such as bridging joints, reliability, volume, and mass. Innovators at NASA Johnson Space Center are using this technology in robotic systems for pressure sensor monitoring. The RFID Pressure Sensor Mechanism has the potential to be easily integrated in mechanical systems to wirelessly and autonomously communicate pressure changes back to a monitoring system without an external power supply.
Automatic Tool Change System for Stringer Side Rivet and Bolt Anvils on a D-Frame or C-Frame Fuselage Fastening Machine2017-01-208009/19/2017
Manually changing stringer-side tooling on an automatic fastening machine is time consuming and can be susceptible to human error. Stringer-side tools can also be physically difficult to manage because of their weight, negatively impacting the experience and safety of the machine operator. A solution to these problems has recently been developed by Electroimpact for use with its new Fuselage Skin Splice Fastening Machine. The Automatic Tool Changer makes use of a mechanically passive gripper system capable of securely holding and maneuvering twelve tools weighing 40 pounds each inside of a space-saving enclosure. The Automatic Tool Changer is mounted directly to the stringer side fastening head, meaning the machine is capable of changing tools relatively quickly while maintaining its position on the aircraft panel with no machine operator involvement. Additionally, since the tools are all contained within an interlocked enclosure, this system reduces the required frequency of tool
Merluzzi, James, Bahr, Isaac
RFID System for Management of High-Risk MaterialsTBMG-2730008/01/2017
For years, radio frequency identification (RFID) technology has been used in a variety of applications, from passports to inventory tracking. Homeland security concerns have heightened the need for sensitive, real-time tracking of thousands of radioactive and hazardous material packages to ensure accountability, safety, security, and worker and public health.
RFID CavityTBMG-2615001/01/2017
This technology provides a method for interrogating collections of items with radio-frequency identification (RFID) tags. It increases the read accuracy, meaning that more of the item tags will be successfully read. It also permits smaller tag antennas than would otherwise be necessary.
Dr. Patrick Fink, Chief Technologist, Wireless Communication Systems Branch, Johnson Space Center, Houston TXTBMG-2512807/25/2016
Low-Power Wireless Body Area Network (WBAN) Communication SystemTBMG-2452605/01/2016
NASA seeks semi-passive, RFIDenabled wearable tags for inventory tracking and astronaut body area network applications. Wearable sensor tags can be printed on astronaut clothing or suits, and are powered by printed thin film batteries and/or via energy harvesting. Energy is harvested by flexible solar cells or from the kinetic energy of the astronaut’s motion by minimizing the power requirement of the suit electronics. A tag antenna functions while being flexed or bent, which normally occurs with clothing. Tags communicate with the astronaut body area network. The functions of the RFID system can be extended to include low-data-rate telemetry for bio-monitoring utilizing wearable RFID-enabled biosensors.
Robotic Glove Can Help Restore Hand MovementsTBMG-2468105/01/2016
Development and Implement of a Model-Based Design Controller for PEPS System2016-01-002104/05/2016
PEPS (Passive Entry and Passive Start) system is gradually becoming a main stream option in automotive keyless entry application, which improves the convenience and vehicle anti-theft performance. Based on the complex functions and safety technical requirements of the PEPS controller, and due to the development method of the model-based system design widely used in the automotive electronics industry, this paper presents a model-based on the development of PEPS controller method, which introduces the process of modeling and automatic code generation for the PEPS controller. Through Simulink/Stateflow of PEPS controller using logic system modeling, the PEPS controller complex system functions are divided into different function layers with each functional layer modeling respectively, and implement logic function design by the graphical language. Based on the model, it describes the process of model debugging and validation, the coverage analysis of the model, MIL (Model In the Loop
Zhang, Xiaodong, Wu, Jian, He, Rui, Liu, Haizhen
Gas and Vapor Sensors on PaperTBMG-2203605/01/2015
Sensors on paper have been proposed and fabricated to identify gas or vapors (chemicals). Traditional sensors are based on hard substrates such as silicon. Sensors fabricated on paper are cheaper, foldable, flexible, and bio - degradable. Paper electronics is an emerging area. Logic devices, memory, RFID (radio-frequency identification) tags, etc. have been demonstrated. Sensors on paper will be another building block to achieve complete, true paper electronics.
Rule-Based Analytic Asset Management for Space Exploration Systems (RAMSES)TBMG-2163703/01/2015
Human space systems, such as the International Space Station (ISS) and future planned missions to the lunar surface and beyond, require the crew’s ability to locate and manage the physical resources that are required for use to achieve mission objectives. However, the large number of assets, ranging from expensive, specialized equipment, to food, water, and medical consumables for the crew is an overwhelming management problem. These assets are stored in numerous containers that are sometimes nested within other containers, frequently removed from one container and placed in another location, consumed, and/or used, and then discarded. Additionally, sometimes the containers themselves are moved. The challenge is to track and manage these assets so that the crew can readily locate items and ground controllers can identify when there is a need to provide sufficient resupply for the mission.
Hybrid Circuit Uses Nanotube TransistorsTBMG-2010808/01/2014
A group of engineers at the University of Southern California Viterbi School of Engineering, Los Angeles, say that they are developing a flexible, energy-efficient hybrid circuit combining carbon nanotube thin film transistors with other thin film transistors. This hybrid, they say, could take the place of silicon as the traditional transistor material used in electronic chips, since carbon nanotubes are more transparent, flexible, and can be processed at a lower cost.
Leading Edge RFID Technologies to Address Safety, FOD and Tooling Management2013-01-227909/17/2013
Taking advantage of its understanding of the needs, stakes and requirements of the strong safety and security expectation of Nuclear Plants in France, Nexess and Desoutter Industrial tools start to offer leading edge RFID solutions answering people flow management and integrated tooling traceability. These solutions aim to enhance security and safety whilst offering productivity improvements, by covering namely tooling management with specialized furniture, storage and warehouse flow management supported by software integrated equipment. Additional solutions exist as well for the search of FOD when brought for assembly or repair in critical areas of the aircraft. With the raising of Battery wireless tools and the raising concerns of FOD the demand for proven technologies in the aerospace is growing. The aim of this paper is to address leading edge technologies to answer safety, FOD and tooling management concerns on the aerospace assembly lines and on MRO's activities.
Secheret, Christophe
Organic Photovoltaics - Forecasts for the Next DecadeTBMG-1403206/20/2012
Wireless Tags Quickly Provide Details About Orthopedic ImplantsTBMG-1359505/01/2012
Radio-frequency technology that uses human tissue instead of air as a conduit for radio waves is the basis of the first electronic “tag” system designed to track and monitor orthopedic implants. A 2009 RAND Corporation (Europe) technical report found that RFID technology offers several advantages to medical care in such areas as wireless data transfer and patient/object identification, and as a sensor.
RFID on Aircraft Parts - Industry Initiatives, Testing Standards, and Best Practices for Storing Maintenance History Information Directly on Aircraft Parts11VATC8060003/22/2012
The aerospace industry has long sought a solution for storing maintenance history information directly on aircraft parts. In 2005 leading airframe manufacturers determined that passive Radio Frequency Identification (RFID) technology presented a unique opportunity to address this industry need. Through the efforts of the Air Transport Association (ATA) RFID on Parts Committee and SAE International testing standards and data specifications are in place to support the broad adoption of passive RFID for storing parts history information directly on aircraft parts. The primary focus of the paper will be on the SAE AS-5678 environmental testing standard for passive RFID tags intended for aircraft use. Detail will be provided to help aerospace manufacturers understand their role and responsibilities for current programs and understand how this may impact their parts certification process. Also covered will be the ATA Spec2000 Chapter 9-5 data specification and details on how parts
Donahue, Kevin
Detecting Damage and Damage Location on Large Composite Parts using RFID Technology11VATC8060103/16/2012
Probabilistic methods are used in calculating composite part design factors for, and are intended to conservatively compensate for worst case impact to composite parts used on space and aerospace vehicles. The current method to investigate impact damage of composite parts is visual based upon observation of an indentation. A more reliable and accurate determinant of impact damage is to measure impact energy. RF impact sensors can be used to gather data to establish an impact damage benchmark for deterministic design criteria that will reduce material applied to composite parts to compensate for uncertainties resulting from observed impact damage. Once the benchmark has been established, RF impact sensors will be applied to composite parts throughout their life-cycle to alert and identify the location of impact damage that exceeds the maximum established benchmark for impact. This paper will describe and illustrate how weight and manufacturing costs can be reduced by eliminating
Bullen, George
Extended-Range Passive RFID and Sensor TagsTBMG-1261701/01/2012
Extended-range passive radio-frequency identification (RFID) tags and related sensor tags are undergoing development. A tag of this type incorporates a retroreflective antenna array, so that it reflects significantly more signal power back toward an interrogating radio transceiver than does a comparable passive RFID tag of prior design, which does not incorporate a retroreflective antenna array. Therefore, for a given amount of power radiated by the transmitter in the interrogating transceiver, a tag of this type can be interrogated at a distance greater than that of the comparable passive RFID or sensor tag of prior design.
Optimization Methods for Portable Automation Equipment Utilizing Motion Tracking Technology2011-01-266810/18/2011
The use of portable automated equipment has increased in recent years with the introduction of flex track, crawling robots, and other innovative machine configurations. Portable automation technologies such as these lower infrastructure costs by minimizing factory floor space requirements and foundation expenses. Portable automation permits a higher density of automated equipment to be used adjacent to aircraft during assembly. This equipment also allows concurrent work in close proximity to automated processes, promotes flexibility for changes in rate, build plan, and floor space requirements throughout the life of an airplane program. This flexibility presents challenges that were not encountered with traditional fixed machine drilling centers. The work zone surrounding portable machines is relatively small, requiring additional setup time to relocate and position machines near the airframe. Moveable equipment also allows more opportunities for human error, such as loading parts and
Reid, Eric M., Merkley, Alan
Fully Printed High-Frequency Phased-Array Antenna on Flexible SubstrateTBMG-807006/01/2010
To address the issues of flexible electronics needed for surface-to-surface, surface-to-orbit, and back-to-Earth communications necessary for manned exploration of the Moon, Mars, and beyond, a room-temperature printing process has been developed to create active, phased-array antennas (PAAs) on a flexible Kapton substrate.
GUIDANCE FOR THE USE OF UHF RADIO FREQUENCY IDENTIFICATION (RFID)ARINC673 (Current)12/02/2009
With the emergence of RFID (Radio Frequency Identification) as a tool to streamline the supply chain, the airline industry determined that a technology standard for both the RFID tag hardware and data needed to be developed. This is required so that industry-wide interoperability can be achieved. Fundamental requirements have been identified and agreed upon by the airline industry. These core requirements build the framework from which this standard was derived. The usage of an open standard UHF-RFID technology will benefit the entire airline industry. While the intent of this document is to address the usage of UHF-RFID tags on aircraft parts, the technology and benefits are applicable to other items that would be in airline inventory. To that extent, the term Product has been used in this standard. This document is specific to the requirements for and installation of UHF-RFID tags and does not address data usage or the tools and systems used to collect the data.
Avionics Maintenance Committee
Number Codes Readable by Magnetic-Field-Response RecordersTBMG-540507/01/2009
A method of encoding and reading numbers incorporates some of the features of conventional optical bar coding and radio-frequency identification (RFID) tagging, but overcomes some of the disadvantages of both: (1) Unlike in conventional optical bar coding, numbers can be read without having a line of sight to a tag; and (2) the tag circuitry is simpler than the circuitry used in conventional RFID.
Number Codes Readable by Magnetic-Field-Response RecordersTBMG-TB-00540506/30/2009
Where useable, these codes offer advantages over conventional optical bar codes. A method of encoding and reading numbers incorporates some of the features of conventional optical bar coding and radio-frequency identification (RFID) tagging, but overcomes some of the disadvantages of both: (1) Unlike in conventional optical bar coding, numbers can be read without having a line of sight to a tag; and (2) the tag circuitry is simpler than the circuitry used in conventional RFID.
Damage Detection and Self-Repair in Inflatable/Deployable StructuresTBMG-500403/01/2009
Inflatable/deployable structures are under consideration for applications as varied as expansion modules for the International Space Station to destinations for space tourism to habitats for the lunar surface. Monitoring and maintaining the integrity of the physical structure is critical, particularly since these structures rely on non-traditional engineering materials such as fabrics, foams, and elastomeric polymers to provide the primary protection for the human crew. The closely related prior concept of monitoring structural integrity by use of built-in or permanently attached sensors has been applied to structures made of such standard engineering materials as metals, alloys, and rigid composites. To effect monitoring of flexible structures comprised mainly of soft goods, however, it will be necessary to solve a different set of problems — especially those of integrating power and data-transfer cabling that can withstand, and not unduly interfere with, stowage and subsequent
Using RFID to Protect System FirmwareTBMG-620711/01/2008
Breeching the security of safety- or security-intensive products such as auto parts, set top boxes, military electronics, or smart batteries can be a lucrative business that is well worth the nominal investment required to create lookalike packaging and labeling, or to change the system firmware to allow unpaid access to licensed content. Because the counterfeiter does not incur any of the costs associated with product development, he quickly covers his capital investment at the expense of the authentic product manufacturer or service provider.
Commercial Product Activation Using RFIDTBMG-284406/01/2008
Radio-frequency identification (RFID) would be used for commercial product activation, according to a proposal. The concept of RFID is not new: RFID systems are widely used in commerce for tracking such diverse assets as animals, credit cards, and retail products. Also not new is the concept of manufacturing commercial products to be nonfunctional or unusable until activated at points of sale or in response to electronic submission of proof of purchase. What is new here is the concept of combining RFID with activation — more specifically, using RFID for activating commercial products (principally, electronic ones) and for performing such ancillary functions as tracking individual product units on production lines, tracking shipments, and updating inventories (see figure).
Electronic Escape Trails for FirefightersTBMG-278005/01/2008
A proposed wireless- communication and data-processing system would exploit recent advances in radio- frequency identification devices (RFIDs) and software to establish information lifelines between firefighters in a burning building and a fire chief at a control station near but outside the building. The system would enable identification of trails that firefighters and others could follow to escape from the building, including identification of new trails should previously established trails become blocked.
Dual-Input AND Gate From Single-Channel Thin-Film FETTBMG-270904/01/2008
A regio-regular poly (3-hexylthiophene) (RRP3HT) thin-film transistor having a split-gate architecture has been fabricated on a doped silicon/silicon nitride substrate and characterized. RRP3HT is a semiconducting polymer that has a carrier mobility and on/off ratio when used in a field effect transistor (FET) configuration. This commercially available polymer is very soluble in common organic solvents and is easily processed to form uniform thin films. The most important polymer-based device fabricated and studied is the FET, since it forms the building block in logic circuits and switches for active matrix (light-emitting-diode) (LED) displays, smart cards, and radio frequency identification (RFID) cards.
Mobile Antenna Systems Handbook, Third EditionB-ART-01501/01/2008
This extensively revised and expanded edition of the Artech bestseller Mobile Antenna Systems Handbook puts the very latest technologies, design and analysis procedures, and applications at your command. It features all-new chapters on smart antennas, MIMO systems, and antennas for recently deployed mobile systems such as RFID, UWB, and terrestrial digital TV broadcasting, and provides a wealth of problem-solving guidance for tackling everything from propagation obstacles to SAR safety issues. Like the previous editions, this ultimate one-stop reference is designed to save you a mountain of work. You get hands-on expertise for every type of mobile antenna base station and terminal system, including its theory of operation, application strengths and weaknesses, performance characteristics, design procedures, analysis techniques, and optimization methods, complete with examples and worked-out calculations at every step. The material is further clarified with 567 diagrams, charts, and
Fujimoto, Kyohei, James, J.R.
Switched Band-Pass Filters for Adaptive TransceiversTBMG-248812/01/2007
Switched band-pass filters are key components of proposed adaptive, software- defined radio transceivers that would be parts of envisioned digital-data- communication networks that would enable real-time acquisition and monitoring of data from geographically distributed sensors. Examples of sensors to be connected to such networks include security cameras, radio-frequency identification units, and geolocation units based on the Global Positioning System. Through suitable software configuration and without changing hardware, these transceivers could be made to operate according to any of a number of complex wireless-communication standards that could be characterized by diverse modulation schemes, bandwidths, and data-handling protocols.
Two-Way Communication Using RFID Equipment and TechniquesTBMG-191505/01/2007
Equipment and techniques used in radio-frequency identification (RFID) would be extended, according to a proposal, to enable short-range, two-way communication between electronic products and host computers. In one example of a typical contemplated application, the purpose of the short-range radio communication would be to transfer image data from a user’s digital still or video camera to the user’s computer for recording and/or processing. The concept is also applicable to consumer electronic products other than digital cameras (for example, cellular telephones, portable computers, or motion sensors in alarm systems), and to a variety of industrial and scientific sensors and other devices that generate data.
RFID Technology in Large Truck and Trailer Applications2006-01-350010/31/2006
This paper reviews the basics of radio frequency identification technology and the existing uses in commercial vehicle systems. The specific engineering design challenges associated with the metallic environments encountered in commercial applications are discussed. An empirical design method using a variable dielectric thickness is given. Experimental results for the use of RFID in the metallic environment encountered in a commercial vehicle demonstrate the validity of the design method.
McCann, Roy, Daily, John, Addo, Glenn
Design, manufacturing learn to shareAEROSEP06_0209/01/2006
Software tools help teams collaborate, providing constant updates. Design and manufacturing teams now work closely together, but the complexity of today's aircraft makes it impossible for them to have a solid understanding of each other's operating environment. Each side is continually making changes from the start of the design process until the plane goes out of production. Throughout this lengthy cycle, it is critical for everyone to know how their adjustments might impact others. And once they make changes, it is equally important that everyone throughout the design and production staff knows about changes that impact them.
Costlow, Terry
Aerospace Engineering 2006-05-01AEROMAY0605/01/2006
Materials mature The growth of air travel has always been dependent on the development of materials technology for structures and engines. Keeping track of production Aircraft manufacturers are making greater use of RFID and bar code technology, while also using new software that helps them keep production lines running smoothly. Breaking records via fuel management Onboard sensors reported lower-than-expectedfuel-tank readings not far into the around-the-world flight of the GlobalFlyer, jeopardizing the entire mission.
RFID and Memory Devices Fabricated Integrally on SubstratesTBMG-70606/01/2004
Electronic identification devices containing radio-frequency identification (RFID) circuits and antennas would be fabricated integrally with the objects to be identified, according to a proposal. That is to say, the objects to be identified would serve as substrates for the deposition and patterning of the materials of the devices used to identify them, and each identification device would be bonded to the identified object at the molecular level. Vacuum arc vapor deposition (VAVD) is the NASA—derived process for depositing layers of material on the substrate.
Directional Radio-Frequency Identification Tag ReaderTBMG-38301/01/2004
A directional radio-frequency identification (RFID) tag reader has been designed to facilitate finding a specific object among many objects in a crowded room. The device could be an adjunct to an electronic inventory system that tracks RFID-tagged objects as they move through reader-equipped doorways. Whereas commercial RFID-tag readers do not measure directions to tagged objects, the device is equipped with a phased-array antenna and a received-signal-strength indicator (RSSI) circuit for measuring direction. At the beginning of operation, it is set to address only the RFID tag of interest. It then continuously transmits a signal to interrogate that tag while varying the radiation pattern of the antenna. It identifies the direction to the tag as the radiation-pattern direction of peak strength of the signal returned by the tag. An approximate distance to the tag is calculated from the peak signal strength. The direction and distance can be displayed on a screen. A prototype containing
A Needs Assessment and Technology Evaluation for Roadside Identification of Commercial Vehicles1999-01-372611/15/1999
This study was undertaken to identify methods of unique identification of commercial vehicles at the roadside for slow and high-speed electronic screening purposes. It is a comprehensive look at available and emerging technologies, focusing on the needs of the Federal Highway Administration’s Office of Motor Carrier and Highway Safety (OMCHS) and the States. The study included both a needs assessment and a technology evaluation. A preliminary list of 22 technologies was developed that appeared to have some applicability to the task of roadside identification of commercial vehicles. As the technology evaluation progressed, five of these technologies (optical character recognition, radio frequency identification, barcode, image capture, and voice recognition) emerged as demonstrating the greatest potential for roadside identification of commercial vehicles. These five technologies were evaluated in some detail, and recommendations were developed.
Walton, Jennifer R., Crabtree, Joseph D.
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