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https://www.readbyqxmd.com/read/28817070/influence-of-the-distribution-of-tag-ids-on-rfid-memoryless-anti-collision-protocols
#1
Nikola Cmiljanic, Hugo Landaluce, Asier Perallos, Laura Arjona
In recent years, Radio Frequency Identification (RFID) has become very popular. The main feature of this technology is that RFID tags do not require close handling and no line of sight is required between the reader and the tags. RFID is a technology that uses radio frequencies in order to identify tags, which do not need to be positioned accurately relative to the reader. Tags share the communication channel, increasing the likelihood of causing a problem, viz., a message collision. Tree based protocols can resolve these collisions, but require a uniform tag ID distribution...
August 17, 2017: Sensors
https://www.readbyqxmd.com/read/28803017/technical-note-use-of-an-automated-grooming-brush-by-heifers-and-potential-for-radiofrequency-identification-based-measurements-of-this-behavior
#2
Rachel L Toaff-Rosenstein, Martin Velez, Cassandra B Tucker
Healthy cattle readily use grooming brushes but this behavior subsides when animals become ill. Tracking use of a brush may provide an opportunity for health monitoring, especially if the process could be automated. We assessed how healthy heifers groom themselves on a brush and hypothesized that radiofrequency identification (RFID) could be used to accurately and automatically record this behavior. Angus and Hereford heifers (n = 16) were fitted with 2 ultra-high-frequency RFID ear tags and monitored in groups of 8 while housed in a pen with an electronic brush, video cameras, and 4 RFID antennas...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28796792/divergent-selection-on-home-pen-locomotor-activity-in-a-chicken-model-selection-program-genetic-parameters-and-direct-response-on-activity-and-body-weight
#3
Joergen B Kjaer
General locomotor activity (GLA) in poultry has attracted attention, as it negatively influences production costs (energy expenditure and feed consumption) and welfare parameters (bone strength, litter quality, feather pecking and cannibalism). Laying hen lines diverging in the average level of spontaneous locomotor activity in the home pen were developed by genetic selection using the founder New Hampshire line. Activity was recorded using RFID technology at around five weeks of age during four to five days in the home pen...
2017: PloS One
https://www.readbyqxmd.com/read/28796179/design-and-implementation-of-2-45-ghz-passive-saw-temperature-sensors-with-bpsk-coded-rfid-configuration
#4
Chen Fu, Yabing Ke, Min Li, Jingting Luo, Honglang Li, Guangxing Liang, Ping Fan
A surface acoustic wave based passive temperature sensor capable of multiple access is investigated. Binary Phase Shift Keying (BPSK) codes of eight chips were implemented using a reflective delay line scheme on a Y-Z LiNbO₃ piezoelectric substrate. An accurate simulation based on the combined finite- and boundary element method (FEM/BEM) was performed in order to determine the optimum design parameters. The scaling factor 's' and time delay factor 'τ' were extracted using signal processing techniques based on the wavelet transform of the correlation function, and then evaluated at various ambient temperatures...
August 10, 2017: Sensors
https://www.readbyqxmd.com/read/28783073/an-rfid-indoor-positioning-algorithm-based-on-bayesian-probability-and-k-nearest-neighbor
#5
He Xu, Ye Ding, Peng Li, Ruchuan Wang, Yizhu Li
The Global Positioning System (GPS) is widely used in outdoor environmental positioning. However, GPS cannot support indoor positioning because there is no signal for positioning in an indoor environment. Nowadays, there are many situations which require indoor positioning, such as searching for a book in a library, looking for luggage in an airport, emergence navigation for fire alarms, robot location, etc. Many technologies, such as ultrasonic, sensors, Bluetooth, WiFi, magnetic field, Radio Frequency Identification (RFID), etc...
August 5, 2017: Sensors
https://www.readbyqxmd.com/read/28759984/rfid-of-next-generation-network-for-enhancing-customer-relationship-management-in-healthcare-industries
#6
Ahmed Alzahrani, Muhammad Shuaib Qureshi, Vijey Thayananthan
This paper aims to analyze possible next generation of networked radio frequency identification (NGN-RFID) system for customer relationship management (CRM) in healthcare industries. Customer relationship and its management techniques in a specific healthcare industry are considered in this development. The key objective of using NGN-RFID scheme is to enhance the handling of patients' data to improve the CRM efficiency in healthcare industries. The proposed NGN-RFID system is one of the valid points to improve the ability of CRM by analyzing different prior and current traditional approaches...
July 25, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28708855/a-multi-domain-trust-management-model-for-supporting-rfid-applications-of-iot
#7
Xu Wu, Feng Li
The use of RFID technology in complex and distributed environments often leads to a multi-domain RFID system, in which trust establishment among entities from heterogeneous domains without past interaction or prior agreed policy, is a challenge. The current trust management mechanisms in the literature do not meet the specific requirements in multi-domain RFID systems. Therefore, this paper analyzes the special challenges on trust management in multi-domain RFID systems, and identifies the implications and the requirements of the challenges on the solutions to the trust management of multi-domain RFID systems...
2017: PloS One
https://www.readbyqxmd.com/read/28678178/multiport-circular-polarized-rfid-tag-antenna-for-uhf-sensor-applications
#8
Jamal Zaid, Abdulhadi Abdulhadi, Arun Kesavan, Yassin Belaizi, Tayeb A Denidni
A circular polarized patch antenna for UHF RFID tag-based sensor applications is presented, with the circular polarization (CP) generated by a new antenna shape, an asymmetric stars shaped slotted microstrip patch antenna (CP-ASSSMP). Four stars etched on the patch allow the antenna's size to be reduced by close to 20%. The proposed antenna is matched with two RFID chips via inductive-loop matching. The first chip is connected to a resistive sensor and acts as a sensor node, and the second is used as a reference node...
July 5, 2017: Sensors
https://www.readbyqxmd.com/read/28677637/an-rfid-based-smart-structure-for-the-supply-chain-resilient-scanning-proofs-and-ownership-transfer-with-positive-secrecy-capacity-channels
#9
Mike Burmester, Jorge Munilla, Andrés Ortiz, Pino Caballero-Gil
The National Strategy for Global Supply Chain Security published in 2012 by the White House identifies two primary goals for strengthening global supply chains: first, to promote the efficient and secure movement of goods, and second to foster a resilient supply chain. The Internet of Things (IoT), and in particular Radio Frequency Identification (RFID) technology, can be used to realize these goals. For product identification, tracking and real-time awareness, RFID tags are attached to goods. As tagged goods move along the supply chain from the suppliers to the manufacturers, and then on to the retailers until eventually they reach the customers, two major security challenges can be identified: (I) to protect the shipment of goods that are controlled by potentially untrusted carriers; and (II) to secure the transfer of ownership at each stage of the chain...
July 4, 2017: Sensors
https://www.readbyqxmd.com/read/28644758/an-independent-shopping-experience-for-wheelchair-users-through-augmented-reality-and-rfid
#10
Zulqarnain Rashid, Rafael Pous, Christopher S Norrie
People with physical and mobility impairments continue to struggle to attain independence in the performance of routine activities and tasks. For example, browsing in a store and interacting with products located beyond an arm's length may be impossible without the enabling intervention of a human assistant. This research article describes a study undertaken to design, develop, and evaluate potential interaction methods for motor-impaired individuals, specifically those who use wheelchairs. Our study includes a user-centered approach, and a categorization of wheelchair users based upon the severity of their disability and their individual needs...
June 23, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28640188/novel-concrete-temperature-monitoring-method-based-on-an-embedded-passive-rfid-sensor-tag
#11
Yongsheng Liu, Fangming Deng, Yigang He, Bing Li, Zhen Liang, Shuangxi Zhou
This paper firstly introduces the importance of temperature control in concrete measurement, then a passive radio frequency identification (RFID) sensor tag embedded for concrete temperature monitoring is presented. In order to reduce the influences of concrete electromagnetic parameters during the drying process, a T-type antenna is proposed to measure the concrete temperature at the required depth. The proposed RFID sensor tag is based on the EPC generation-2 ultra-high frequency (UHF) communication protocol and operates in passive mode...
June 22, 2017: Sensors
https://www.readbyqxmd.com/read/28593407/feasibility-of-real-time-location-systems-in-monitoring-recovery-after-major-abdominal-surgery
#12
Robert D Dorrell, Sarah A Vermillion, Clancy J Clark
BACKGROUND: Early mobilization after major abdominal surgery decreases postoperative complications and length of stay, and has become a key component of enhanced recovery pathways. However, objective measures of patient movement after surgery are limited. Real-time location systems (RTLS), typically used for asset tracking, provide a novel approach to monitoring in-hospital patient activity. The current study investigates the feasibility of using RTLS to objectively track postoperative patient mobilization...
June 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28570706/coplanar-uhf-rfid-tag-antenna-with-u-shaped-inductively-coupled-feed-for-metallic-applications
#13
Karrar Naji Salman, Alyani Ismail, Raja Syamsul Azmir Raja Abdullah, Tale Saeedi
In this paper, we present a novel compact, coplanar, tag antenna design for metallic objects. Electrically small antenna has designed for a UHF RFID (860-960 MHz) based on a proximity-coupled feed through. Furthermore, two symmetrical Via-loaded coplanar grounds fed by a U-shaped inductively coupled feed through an embedded transmission line. This configuration results in an antenna with dimensions of 31 × 19.5 × 3.065 mm3 at 915 MHz, and the total gain for the antenna is 0.12 dBi. The Via-loaded coplanar and U-shaped inductively coupled feeds allow the antenna to provide flexible tuning in terms of antenna impedance...
2017: PloS One
https://www.readbyqxmd.com/read/28570586/inferring-and-analysis-of-social-networks-using-rfid-check-in-data-in-china
#14
Tao Liu, Lintao Yang, Shouyin Liu, Shuangkui Ge
Social networks play an important role in our daily lives. However, social ties are rather elusive to quantify, especially for large groups of subjects over prolonged periods of time. In this work, we first propose a methodology for extracting social ties from long spatio-temporal data streams, where the subjects are 17,795 undergraduates from a university of China and the data streams are the 9,147,106 time-stamped RFID check-in records left behind by them during one academic year. By several metrics mentioned below, we then analyze the structure of the social network...
2017: PloS One
https://www.readbyqxmd.com/read/28517016/graphene-as-an-electrode-for-solution-processed-electron-transporting-organic-transistors
#15
Subir Parui, Mário Ribeiro, Ainhoa Atxabal, Roger Llopis, Fèlix Casanova, Luis E Hueso
Organic field-effect transistors (OFETs) are fundamental building blocks for plastic electronics such as organic photovoltaics or bendable displays with organic light emitting diodes, and radio-frequency identification (RFID) tags. A key part in the performance of OFET is the organic material constituting the channel. OFETs based on solution-processed polymers represent a new class of organic electronic devices. Recent developments in upscale solution-processed polymers have advanced towards high throughput, low-cost, and environmentally friendly materials for high-performance applications...
July 27, 2017: Nanoscale
https://www.readbyqxmd.com/read/28483593/the-use-of-smart-technologies-in-enabling-construction-components-reuse-a-viable-method-or-a-problem-creating-solution
#16
Eleni Iacovidou, Phil Purnell, Ming K Lim
The exploitation of Radio Frequency Identification (RFID) for tracking and archiving the properties of structural construction components could be a potentially innovative disruption for the construction sector. This is because RFID can stimulate the reuse of construction components and reduce their wastage, hence addressing sustainability issues in the construction sector. To test the plausibility of that idea, this study explores the potential pre-conditions for RFID to facilitate construction components reuse, and develops a guidance for promoting their redistribution back to the supply chain...
May 5, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28476590/automating-mouse-weighing-in-group-homecages-with-raspberry-pi-micro-computers
#17
Omid Noorshams, Jamie D Boyd, Timothy H Murphy
BACKGROUND: Operant training systems make use of water or food restriction and make it necessary to weigh animals to ensure compliance with experimental endpoints. In other applications periodic weighing is necessary to assess drug side-effects, or as an endpoint in feeding experiments. Periodic weighing while essential can disrupt animal circadian rhythms and social structure. NEW METHOD: Automatic weighing system within paired mouse homecages. Up to 10 mice freely move between two cages (28×18×9cm) which were connected by a weighing chamber mounted on a load cell...
June 15, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28461902/effect-of-skin-dielectric-properties-on-the-read-range-of-epidermal-ultra-high-frequency-radio-frequency-identification-tags
#18
Dumtoochukwu O Oyeka, John C Batchelor, Ali Mohamad Ziai
This Letter presents an investigation of the effect of human tissue conductivity and permittivity on the performance of epidermal transfer tattoo ultra-high frequency radio-frequency identification (RFID) tags. The measurements were carried out on 20 individuals and the variations in the measured dielectric properties correlate well with variations in the measured tag read range on the individuals and to a lesser extent with their body mass index values. Simulation results also showed the effects of permittivity and conductivity on the designed resonance frequency of the RFID tag...
April 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/28459815/the-improved-business-valuation-model-for-rfid-company-based-on-the-community-mining-method
#19
Shugang Li, Zhaoxu Yu
Nowadays, the appetite for the investment and mergers and acquisitions (M&A) activity in RFID companies is growing rapidly. Although the huge number of papers have addressed the topic of business valuation models based on statistical methods or neural network methods, only a few are dedicated to constructing a general framework for business valuation that improves the performance with network graph (NG) and the corresponding community mining (CM) method. In this study, an NG based business valuation model is proposed, where real options approach (ROA) integrating CM method is designed to predict the company's net profit as well as estimate the company value...
2017: PloS One
https://www.readbyqxmd.com/read/28420104/low-power-near-field-communication-methods-for-rfid-applications-of-sim-cards
#20
Yicheng Chen, Zhaoxia Zheng, Mingyang Gong, Fengqi Yu
Power consumption and communication distance have become crucial challenges for SIM card RFID (radio frequency identification) applications. The combination of long distance 2.45 GHz radio frequency (RF) technology and low power 2 kHz near distance communication is a workable scheme. In this paper, an ultra-low frequency 2 kHz near field communication (NFC) method suitable for SIM cards is proposed and verified in silicon. The low frequency transmission model based on electromagnetic induction is discussed...
April 14, 2017: Sensors
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