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Academic literature on the topic 'Sensor tags'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Sensor tags"

1

Souto, Gentza, Florian Muralter, Laura Arjona, Hugo Landaluce, and Asier Perallos. "Protocol for Streaming Data from an RFID Sensor Network †." Sensors 19, no. 14 (2019): 3148. http://dx.doi.org/10.3390/s19143148.

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Currently, there is an increasing interest in the use of Radio Frequency Identification (RFID) tags which incorporate passive or battery-less sensors. These systems are known as computational RFID (CRFID). Several CRFID tags together with a reader set up an RFID sensor network. The reader powers up the tags’ microcontroller and their attached sensor using radio frequency waves, and tags backscatter, not only their EPC code but also the value of those sensors. The current standard for interrogating these CRFID tags is the EPC global Class 1 Generation 2 (EPC C1G2). When several tags are located inside the reader interrogation area, the EPC C1G2 results in very poor performance to obtain sensor data values. To solve this problem, a novel protocol called Sensor Frmed Slotted Aloha (sFSA) for streaming sensor data dealing with the tag collisions is presented. The proposed protocol increases the Sensor Read Rate (SRR), defined as the number of sensor data reads per second, compared to the standard. Additionally, this paper presents a prototype of an RFID sensor network to compare the proposed sFSA with the standard, increasing the SRR by more than five times on average. Additionally, the proposed protocol keeps a constant sensor sampling frequency for a suitable streaming of these tag sensors.
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2

Arjona, Laura, Hugo Landaluce, Asier Perallos, and Gentza Souto. "Protocol for Streaming Data from an RFID Sensor Network." Proceedings 2, no. 19 (2018): 1234. http://dx.doi.org/10.3390/proceedings2191234.

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Currently, there is an increasing interest in the use of Radio Frequency Identification (RFID) tags which incorporate passive or battery-less sensors. These systems are known as computational RFID (CRFID). Several CRFID tags together with a reader set up an RFID sensor network. The reader powers up the tags’ microcontroller and their attached sensor using radio frequency waves, and tags backscatter, not only their E P C code but also the value of those sensors. The current standard for interrogating these CRFID tags is the EPC global Class 1 Generation 2 (EPC C1G2). When several tags are located inside the reader interrogation area, the EPC C1G2 results in very poor performance to obtain sensor data values. To solve this problem, a novel protocol for streaming sensor data is presented. The proposed protocol increases the Sensor Read Rate ( S R R ), defined as the number of sensor data reads per second, compared to the standard. Additionally, this paper presents a prototype of an RFID sensor network to compare the proposed custom protocol with the standard, obtaining a 53% of improvement in S R R with respect to the EPC C1G2.
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3

Kumar, Rajesh, Can Isik, and Vir V. Phoha. "Treadmill Assisted Gait Spoofing (TAGS)." Digital Threats: Research and Practice 2, no. 3 (2021): 1–17. http://dx.doi.org/10.1145/3442151.

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In this work, we examine the impact of Treadmill Assisted Gait Spoofing on Wearable Sensor-based Gait Authentication (WSGait). We consider more realistic implementation and deployment scenarios than the previous study, which focused only on the accelerometer sensor and a fixed set of features. Specifically, we consider the situations in which the implementation of WSGait could be using one or more sensors embedded into modern smartphones. In addition, it could be using different sets of features or different classification algorithms, or both. Despite the use of a variety of sensors, feature sets (ranked by mutual information), and six different classification algorithms, Treadmill Assisted Gait Spoofing was able to increase the average false accept rate from 4% to 26%. Such a considerable increase in the average false accept rate, especially under the stringent implementation and deployment scenarios considered in this study, calls for a further investigation into the design of evaluations of WSGait before its deployment for public use.
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4

Zaid, Jamal, Abdulhadi E. Abdulhadi, and Tayeb A. Denidni. "Miniaturized Multi-Port Microstrip Patch Antenna Using Metamaterial for Passive UHF RFID-Tag Sensor Applications." Sensors 19, no. 9 (2019): 1982. http://dx.doi.org/10.3390/s19091982.

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In this paper, a miniaturized Ultra High Frequency Radio Frequency Identification (UHF-RFID) tag-based sensor antenna using a magneto- dielectric substrate (MDS) for wireless identification and sensor applications is presented. Two models of RFID tag-based sensors are designed, fabricated and measured. The first model uses two RFID tags; both of the tags are incorporated with two RFID chips. A passive sensor is also integrated in one of the proposed tags to serve as a sensor node, while the other tag is used as a reference node. Based on the difference in the minimum power required to activate the reference and sensor nodes, the sensed data (temperature or humidity) can be determined. The magneto-dielectric substrate layer is placed underneath the patch antenna to reduce the size of the proposed sensor by about 75% compared to a conventional RFID tag-based sensor. The magneto-dielectric layer is thin enough to embed in the planer circuit. To reduce the size of the proposed sensor, a multi-port tag for including the reference and sensor node in one antenna is also presented. The proposed RFID tag-based sensors have several features such as small size, they are completely capable for two objectives at the same time and easy to integrate with a planer circuit.
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5

Zurita, M., R. C. S. Freire, S. Tedjini, and S. A. Moshkalev. "A Review of Implementing ADC in RFID Sensor." Journal of Sensors 2016 (2016): 1–14. http://dx.doi.org/10.1155/2016/8952947.

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The general considerations to design a sensor interface for passive RFID tags are discussed. This way, power and timing constraints imposed by ISO/IEC 15693 and ISO/IEC 14443 standards to HF RFID tags are explored. A generic multisensor interface is proposed and a survey analysis on the most suitable analog-to-digital converters for passive RFID sensing applications is reported. The most appropriate converter type and architecture are suggested. At the end, a specific sensor interface for carbon nanotube gas sensors is proposed and a brief discussion about its implemented circuits and preliminary results is made.
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6

Calabrese, C., and G. Marrocco. "Meandered-Slot Antennas for Sensor-RFID Tags." IEEE Antennas and Wireless Propagation Letters 7 (2008): 5–8. http://dx.doi.org/10.1109/lawp.2007.914123.

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7

Sun, J. H., and C. C. Lin. "Wireless Saw-Based Tags with Temperature Sensors that Utilize High-Resolution Delay-Time Measurements." Journal of Mechanics 32, no. 4 (2016): 435–40. http://dx.doi.org/10.1017/jmech.2016.6.

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AbstractSurface acoustic wave (SAW) devices are widely used in commercial products as filters and resonators. SAW devices are also applied as passive, wireless radio frequency identification (RFID) tags and sensors, which can be used in harsh environments and consume no batteries. In this study, we designed and fabricated an SAW-based RFID tag with the added function of a high-resolution temperature sensor. A coupling of modes model was adopted to design 433MHz SAW-based tags/sensors. An improved signal processing method was used to increase the resolution of time-domain signals, enabling the slight change of delay time caused by temperature variation to be detected. Subsequently, the SAW tags/sensors were fabricated on 128° Y-cut lithium niobate and used to detect temperature shifts. The results revealed that high-resolution delay-time SAW devices are feasible for measuring temperatures precisely and can be applied to other SAW-based sensors.
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8

Arjona, Laura, Hugo Landaluce, Asier Perallos, and Enrique Onieva. "Dynamic Frame Update Policy for UHF RFID Sensor Tag Collisions." Sensors 20, no. 9 (2020): 2696. http://dx.doi.org/10.3390/s20092696.

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The current growing demand for low-cost edge devices to bridge the physical–digital divide has triggered the growing scope of Radio Frequency Identification (RFID) technology research. Besides object identification, researchers have also examined the possibility of using RFID tags for low-power wireless sensing, localisation and activity inference. This paper focuses on passive UHF RFID sensing. An RFID system consists of a reader and various numbers of tags, which can incorporate different kinds of sensors. These sensor tags require fast anti-collision protocols to minimise the number of collisions with the other tags sharing the reader’s interrogation zone. Therefore, RFID application developers must be mindful of anti-collision protocols. Dynamic Frame Slotted Aloha (DFSA) anti-collision protocols have been used extensively in the literature because EPCglobal Class 1 Generation 2 (EPC C1G2), which is the current communication protocol standard in RFID, employs this strategy. Protocols under this category are distinguished by their policy for updating the transmission frame size. This paper analyses the frame size update policy of DFSA strategies to survey and classify the main state-of-the-art of DFSA protocols according to their policy. Consequently, this paper proposes a novel policy to lower the time to read one sensor data packet compared to existing strategies. Next, the novel anti-collision protocol Fuzzy Frame Slotted Aloha (FFSA) is presented, which applies this novel DFSA policy. The results of our simulation confirm that FFSA significantly decreases the sensor tag read time for a wide range of tag populations when compared to earlier DFSA protocols thanks to the proposed frame size update policy.
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9

Murakami, Kouji, Tsutomu Hasegawa, Ryo Kurazume, and Yoshihiko Kimuro. "Supporting Robotic Activities in Informationally Structured Environment with Distributed Sensors and RFID Tags." Journal of Robotics and Mechatronics 21, no. 4 (2009): 453–59. http://dx.doi.org/10.20965/jrm.2009.p0453.

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This paper describes a platform of ambient intelligence for robots working in an ordinary environment for daily human life. To enable autonomous robotic activity, vision sensors and RFID tags are distributed in the environment and are connected to a network. Sensor data is integrated and is provided to robots to support their activities. Based on sensor function analysis and robot data requirements, we designed and implemented a data management system which integrates real-time data from sensors and robots. Experiments confirmed that robots made decisions and completed tasks successfully using data provided by the data management system.
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10

Nowacek, Douglas, Matthew Bowers, Andrew Cannon, et al. "The next generation of multi-sensor acoustic tags: Sensors, applications, and attachments." Journal of the Acoustical Society of America 134, no. 5 (2013): 4043. http://dx.doi.org/10.1121/1.4830757.

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