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Journal articles on the topic 'Sensor tags'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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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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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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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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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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11

Echevarria, Juan Jose, Jonathan Ruiz-de-Garibay, Jon Legarda, Maite Álvarez, Ana Ayerbe, and Juan Ignacio Vazquez. "WebTag: Web Browsing into Sensor Tags over NFC." Sensors 12, no. 7 (2012): 8675–90. http://dx.doi.org/10.3390/s120708675.

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12

Wilson, A. D. M., M. Wikelski, R. P. Wilson, and S. J. Cooke. "Utility of biological sensor tags in animal conservation." Conservation Biology 29, no. 4 (2015): 1065–75. http://dx.doi.org/10.1111/cobi.12486.

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13

Virtanen, J., F. Yang, L. Ukkonen, A. Z. Elsherbeni, A. A. Babar, and L. Sydänheimo. "Dual port temperature sensor tag for passive UHF RFID systems." Sensor Review 34, no. 2 (2014): 154–69. http://dx.doi.org/10.1108/sr-12-2011-681.

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Purpose – The purpose of this paper is to develop a novel totally passive, wireless temperature sensor tag based on ultra high-frequency (UHF) radio frequency identification (RFID) technology. The temperature-sensing functionality is enabled by using distilled water embedded in the tag antenna substrate. The novel sensor tag is designed to provide wireless temperature readings comparable to a commercial thermocouple thermometer even in environments with high levels of interference, such as reflections. The structure of the novel sensor tag is aimed to increase its usability by minimizing user-created errors and to simplify the measurement procedure. Design/methodology/approach – The sensor tag is based on a dual port sensing concept in which two ports are used to obtain sensor readings. By utilizing two ports instead of one, the effects of environmental interference, tag-reader antenna orientation and distance can be effectively minimized. Two alternative methods of acquiring the sensor reading from the operating characteristics of the two ports are presented and discussed. Findings – Temperature measurements in practical scenarios show that by utilizing the dual port sensing concept, the developed tag produces temperature readings wirelessly which are comparable to readings from a commercial thermocouple thermometer. Research limitations/implications – The concept of dual port sensing was shown and two alternative methods on extracting sensor readings from the differences in the port operating characteristics were introduced and discussed. In this paper, the dual port sensing concept is utilized in creating a temperature sensor tag; however, the same concept can be utilized in a variety of passive wireless sensors based on UHF RFID technology. This enables a new approach in designing accurate, easy to use and easily integrable passive sensors. The dual port sensing concept is in its early stages of development; its accuracy could be improved by developing more advanced data post-processing techniques. Practical implications – The accuracy of a passive dual port UHF RFID-enabled temperature sensor tag is proven to be sufficient in many applications. This indicates that other sensor types utilizing the dual port sensing concept can reach high levels of accuracy as well. Furthermore, the passive RFID-enabled sensors based on the dual port sensing concept are superior in usability versus sensor tags equipped only with a single port. Therefore, dual port sensing concept in passive UHF RFID-enabled sensor tags could make such sensors more attractive commercially and lead to truly widespread ubiquitous sensing and computing. Originality/value – This paper presents a novel passive, wireless temperature sensor tag for UHF RFID systems. The sensor tag utilizes a new structure which allows tight integration of two ports and two tag antennas. The accuracy of the developed tag is confirmed throughout measurements and it is found comparable to the accuracy of commercial thermometers in practical measurement scenarios. Moreover, the paper presents a dual port sensing concept and two readout methods based on the concept which are aimed to increase the accuracy and usability of all kinds of UHF RFID-enabled sensor tags.

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14

Kawarazaki, Noriyuki, Seiichiro Umeda, Tadashi Yoshidime, and Kazue Nishihara. "Development of a Mobile Robot Control System Using IC Tags." Key Engineering Materials 464 (January 2011): 111–14. http://dx.doi.org/10.4028/www.scientific.net/kem.464.111.

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This paper provides a mobile robot control system using IC tags. We developed a mobile robot control system that is composed of an omni-wheel typed mobile robot, IC tags and a PC. The IC tag is very useful sensor for navigation of robot. This mobile robot moves according to the motion data from the IC tags. The effectiveness of our system is demonstrated by several experimental results.

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15

Bartholmai, Matthias, Markus Stoppel, Sergej Petrov, Stefan Hohendorf, and Thomas Goedecke. "Two application examples of RFID sensor systems - identification and diagnosis of concrete components and monitoring of dangerous goods transports." ACTA IMEKO 4, no. 2 (2015): 85. http://dx.doi.org/10.21014/acta_imeko.v4i2.227.

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The combination of RFID-tags and energy efficient sensors offers promising potential for identification, diagnosis, and monitoring applications - particularly when it comes to objects, which require continuous observation and which are difficult to access with conventional tools. This paper presents two examples as an outlook for RFID sensor systems in embedded structures and in mobile applications.

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16

Andziulis, Arūnas, Rimantas Plėštys, Sergej Jakovlev, et al. "PRIORITY BASED TAG AUTHENTICATION AND ROUTING ALGORITHM FOR INTERMODAL CONTAINERS RFID SENSOR NETWORK." TRANSPORT 27, no. 4 (2012): 373–82. http://dx.doi.org/10.3846/16484142.2012.750622.

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Intermodal containers transportation management has always been a serious issue among logistics worldwide companies where the application of secure mobile information technologies (e.g. radio frequency identification systems (RFID) and sensor networks) could significantly improve the current situation by sending managers all the needed transportation conditions information. In this paper, we have focused on improving managerial decision making method by introducing the expert system evaluation functionality in a common software solution CTRMS for additional ICT risks evaluation. The basic risks involved in transportation and the appropriate measures are introduced as well. The pre-defined RFID sensor network was used to develop an optimal tag authentication and routing algorithm where tags and reader authentication protocols were defined and based upon the highest security assurance and the reader to tag response time criterias. A Nearest Neighbor (NN) heuristic approach and a Priority setting method were used to address the problem of routing within the RFID sensor network between tags with the objective function of minimizing the data transfer time between tags with the highest priority values. Computational results also indicate that when the tags have the same level of confidence in the system, they can exchange information without any additional verification, so making the authentication protocol less time consuming and therefore more effective against other proposed protocols.

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17

Qiu, Zi Xue, Zhi Xin Chen, Jiang Yuan, You Wei Wang, Jie Yang, and Yun Lei Yu. "Design of Sensor-Tag Using Radio Frequency Power to Energize and its Research on Structural Health Monitoring." Applied Mechanics and Materials 330 (June 2013): 373–79. http://dx.doi.org/10.4028/www.scientific.net/amm.330.373.

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A new method of structural health monitoring based on sensor-tags using radio frequency power to energize node wirelessly is proposed. A modular RFID sensor-tag, which has the function of signal conditioning, energy harvesting, and wireless transmission, is designed for some sensing elements commonly used in structural health monitoring, such as resistance strain gauges, piezoelectric ceramic and shape memory alloy (SMA). Sensor-tags receive energy which is the feedback of reader antenna coupling and provide power for sensor nodes. It overcomes defects of wireless sensor network (WSN) powered by battery, such as weak capabilities of processing, storage and communication. Stretching, bending and impact tests show that the system can achieve reliable signal acquisition and wireless transmission, the wireless communication distance between tag and reader is up to 128 meters, bit error rate of signal transmission 2 %.

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18

Yamada, Kenji, Masanobu Oshita, Shigeru Koibayakawa, Itaru Ueda, and Kiyomu Ishikawa. "Development of small incontinence sensor which used RFID tags." Journal of Life Support Engineering 19, Supplement (2007): 55. http://dx.doi.org/10.5136/lifesupport.19.supplement_55.

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19

Sveshnikov, Boris V., and Alexey P. Shitvov. "Multitransducer SAW Device Architecture for Passive Wireless Sensor Tags." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 65, no. 11 (2018): 2176–83. http://dx.doi.org/10.1109/tuffc.2018.2868886.

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20

Corchia, Laura, Giuseppina Monti, Egidio De Benedetto, and Luciano Tarricone. "Low-Cost Chipless Sensor Tags for Wearable User Interfaces." IEEE Sensors Journal 19, no. 21 (2019): 10046–53. http://dx.doi.org/10.1109/jsen.2019.2927823.

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21

Goertschacher, Lukas, and J. Grosinger. "Localization of Signal Pattern Based UHF RFID Sensor Tags." IEEE Microwave and Wireless Components Letters 29, no. 11 (2019): 753–56. http://dx.doi.org/10.1109/lmwc.2019.2940082.

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22

Allane, Dahmane, Gianfranco Andia Vera, Yvan Duroc, Rachida Touhami, and Smail Tedjini. "Harmonic Power Harvesting System for Passive RFID Sensor Tags." IEEE Transactions on Microwave Theory and Techniques 64, no. 7 (2016): 2347–56. http://dx.doi.org/10.1109/tmtt.2016.2574990.

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23

Lorenzo, Javier, David Girbau, Antonio Lázaro, and Ramón Villarino. "Temperature sensor based on frequency-coded chipless RFID tags." Microwave and Optical Technology Letters 56, no. 10 (2014): 2411–15. http://dx.doi.org/10.1002/mop.28599.

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24

Ho, Harvey, and Jack L. Skinner. "Fabrication methods for creating flexible polymer substrate sensor tags." Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures 27, no. 6 (2009): 3104. http://dx.doi.org/10.1116/1.3258142.

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25

Nakauchi, Yasushi, Katsunori Noguchi, Pongsak Somwong, and Takashi Matsubara. "Human Intention Detection and Activity Support System for Ubiquitous Sensor Room." Journal of Robotics and Mechatronics 16, no. 5 (2004): 545–51. http://dx.doi.org/10.20965/jrm.2004.p0545.

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In this paper, we propose the human behavior detection and activity support environment Vivid Room. Behavior in Vivid Room is detected by numerous sensors built into the room, i.e., magnet sensors for doors and drawers, microswitches for chairs, and ID tags for personnel, and information is collected by a sensor server via an RF tag system and LAN. To recognize meaningful behavior, e.g., studying, eating, and resting, we use ID4-based learning system. We also developed activity support using sound and voice taking into account human behavior in the room. Experimental results confirmed the accuracy of behavior recognition and the quality of support.

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Ripperger, Simon P., Niklas Duda, Alexander Kölpin, and Gerald G. Carter. "Simultaneous Monitoring of the Same Animals with PIT Tags and Sensor Nodes Causes No System Interference." Animal Behavior and Cognition 7, no. 4 (2020): 531–36. http://dx.doi.org/10.26451/abc.07.04.05.2020.

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Recent technological advances have multiplied the variety of biologgers used in wildlife research, particularly with small-bodied animals. Passive integrated transponders (PIT) have been used for decades to log visits of tagged animals at reader-equipped artificial feeders or roost boxes. More recently, novel miniaturized sensor nodes can collect data on social encounters among tagged individuals in any location. Combining these systems allows researchers to gather high-resolution tracking data on certain individuals from their long-term PIT-tagged animal populations. However, there can be a risk of interference among tracking systems. Here we tested whether placing an additional biologging sensor on top of a PIT tag might attenuate the magnetic field reaching the PIT tag and, in turn, hamper reading success of the radio-frequency identification (RFID) reader. We also evaluated data transmission by a digital sensor node in the presence of a magnetic field created by the RFID antenna. The combination of this RFID system and wireless biologging sensors works without error, suggesting that the simultaneous use of PIT tags and other digital biologgers, e.g., miniaturized GPS-loggers, should also work together properly when communication channels do not overlap. The combination of long-term monitoring with PIT tags and short-term tracking with biologging sensor nodes creates exciting new opportunities to gather rich social data when individuals are not present at RFID reader stations.

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Aroca, Rafael V., André C. Hernandes, Daniel V. Magalhães, Marcelo Becker, Carlos Manoel Pedro Vaz, and Adonai G. Calbo. "Calibration of Passive UHF RFID Tags Using Neural Networks to Measure Soil Moisture." Journal of Sensors 2018 (2018): 1–12. http://dx.doi.org/10.1155/2018/3436503.

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This paper presents a system to monitor soil moisture using standard UHF RFID tags buried on the soil. An autonomous mobile robot is also presented, which is capable to navigate on the field and automatically read the sensors, even if they are completely buried on the soil. Thus, passive RFID tags are buried on the soil, allowing wireless moisture measurement without the need of batteries for long periods. The system dispenses external cables and antennas and may be composed of a single RFID tag buried on the soil or by several RFID tags buried at different depths on the soil. An antenna coupled to a RFID reader can be pointed to the place of installation of these tags, and by measuring the received signal strength indicator (RSSI) and other parameters, it allows to estimate the amount of water on the soil. The estimation of volumetric water content (VWC) on the soil was successfully obtained and calibrated with R2>0.9 using neural networks trained with experimental data from a reference capacitive soil moisture sensor. In addition to the simplified installation procedure, the system allows manual or automatic reading through irrigation systems or other systems to control irrigation systems. The system has been evaluated in several experiments, and nine tags were buried on the field, being used for at least three years. Experimental results show that it is possible to read tags at 40 cm deep in the soil with the RFID reader antenna 10 cm far from the soil surface.

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Tervonen, Jouni, Mika Luimula, Sakari Pieskä, Tomi Pitkäaho, and Juha Alaspää. "RFID and Wireless Sensor and Actuator Networks in Advanced Production Applications." Solid State Phenomena 164 (June 2010): 155–60. http://dx.doi.org/10.4028/www.scientific.net/ssp.164.155.

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In this study we focus on adding wireless intelligence to machines and systems to be used in production applications. The key enabling technologies of piloted mechatronic systems were RFID (Radio-Frequency Identification) and WSAN (Wireless Sensor and Actuator Network). This work is mainly done in a project “Ubiquitous Computing in Maintenance Using Sensors and RFID Tags”. There were several industrial partners in the project. The main goal is to develop solutions that are suitable for industry. Several systems piloted in harsh industrial environments are considered in the paper.

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Saldanha, Nancy, and Donald Malocha. "Pseudo-orthogonal frequency coded wireless SAW RFID temperature sensor tags." IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 59, no. 8 (2012): 1750–58. http://dx.doi.org/10.1109/tuffc.2012.2379.

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Stelzer, Andreas, Stefan Scheiblhofer, Stefan Schuster, and Rüdiger Teichmann. "Wireless sensor marking and temperature measurement with SAW-identification tags." Measurement 41, no. 5 (2008): 579–88. http://dx.doi.org/10.1016/j.measurement.2007.02.004.

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31

Gao, Jinlan, Johan Siden, Hans-Erik Nilsson, and Mikael Gulliksson. "Printed Humidity Sensor With Memory Functionality for Passive RFID Tags." IEEE Sensors Journal 13, no. 5 (2013): 1824–34. http://dx.doi.org/10.1109/jsen.2013.2244034.

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32

Brun, Matthias A., Kui-Thong Tan, Eiji Nakata, Marlon J. Hinner, and Kai Johnsson. "Semisynthetic Fluorescent Sensor Proteins Based on Self-Labeling Protein Tags." Journal of the American Chemical Society 131, no. 16 (2009): 5873–84. http://dx.doi.org/10.1021/ja900149e.

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33

Mitsugi, Jin, Yuusuke Kawakita, Kiyoshi Egawa, and Haruhisa Ichikawa. "Perfectly Synchronized Streaming From Multiple Digitally Modulated Backscatter Sensor Tags." IEEE Journal of Radio Frequency Identification 3, no. 3 (2019): 149–56. http://dx.doi.org/10.1109/jrfid.2019.2914246.

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34

Bruckner, Gudrun, and Jochen Bardong. "Wireless Readout of Multiple SAW Temperature Sensors." Sensors 19, no. 14 (2019): 3077. http://dx.doi.org/10.3390/s19143077.

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It has since long been known that surface acoustic wave (SAW) devices, resonators as well as delay lines, can be used as passive wireless sensors for physical quantities, like temperature and pressure, as well as gas sensors or identification-tags (ID-tags). The sensors are robust, work passively without a battery, can be applied at high temperatures, and provide a high resolution. Nevertheless, if the devices are used wirelessly in an industrial environment, several constraints have to be taken into account, especially when more than one quantity or device needs to be measured at the same time. The paper addresses the challenges that must be tackled when establishing multi-sensor-wireless-readout for industrial applications. Major issues here are the legal regulations for industrial, scientific and medical frequency bands (ISM-bands), as well as sampling time and costs, which impose severe restrictions to any system design. We describe several design approaches and their constraints. We successfully designed sensors based on reflective delay lines that allow the parallel readout of four independent temperature sensors in the 2.45 GHz ISM-band. These devices were fabricated and positively tested, demonstrating the applicability of SAW sensors for industrial applications.

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Krull, C. R., L. F. McMillan, R. M. Fewster, et al. "Testing the feasibility of wireless sensor networks and the use of radio signal strength indicator to track the movements of wild animals." Wildlife Research 45, no. 8 (2018): 659. http://dx.doi.org/10.1071/wr18013.

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Context Wireless sensor networks (WSNs) are revolutionising areas of animal behaviour research and are advantageous based on their ability to be deployed remotely and unobtrusively, for long time periods in inaccessible areas. Aims We aimed to determine the feasibility of using a WSN to track detailed movement paths of small animals, e.g. rats (Rattus spp.) 100–400g, too small for current GPS technology, by calibrating active Radio Frequency Identification (RFID) tags and loggers using Radio Frequency Signal Strength Indicator (RSSI) as a proxy for distance. Active RFIDs are also called Wireless Identification (WID) tags. Methods Calibration tests were conducted using a grid of loggers (n=16) spaced at 45-m intervals in clear line-of-sight conditions. WID tags (n=16) were placed between the loggers at 45-m intervals. Eight ‘walks’ were also conducted through the grid using a single WID tag. This involved attaching the tag to a small bottle of water (to simulate the body of an animal), towed around the grid using a 1-m long tow line attached to a volunteer walker. The volunteer also held a GPS device that logged their track. Models were constructed to test the effects of distance, tag movement and individual differences in loggers and tags on the reliability of movement data. Key results Loggers were most successful at detecting tags at distances &lt;50m. However, there was a significant difference in the detection probabilities of individual loggers and also the transmission performance of individual tags. Static tags were less likely to be detected than the mobile tag; and although RSSI was somewhat related to distance, the reliability of this parameter was highly variable. Implications We recommend caution in the future use of current radio frequency ID tags in wireless sensor networks to track the movement of small animals, and in the use of RSSI as an indicator of individual distance values, as extensive in situ calibration is required. ‘Off the shelf’ devices may vary in performance, rendering data unreliable. We emphasise the importance of calibrating all equipment in animal tracking studies to reduce data uncertainty and error.

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Xu, Yawei, Lihong Dong, Haidou Wang, Jiannong Jing, and Yongxiang Lu. "A review of passive self-sensing tag." Sensor Review 37, no. 3 (2017): 338–45. http://dx.doi.org/10.1108/sr-01-2017-0001.

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Purpose Radio frequency identification tags for passive sensing have attracted wide attention in the area of Internet of Things (IoT). Among them, some tags can sense the property change of objects without an integrated sensor, which is a new trend of passive sensing based on tag. The purpose of this paper is to review recent research on passive self-sensing tags (PSSTs). Design/methodology/approach The PSSTs reported in the past decade are classified in terms of sensing mode, composition and the ways of power supply. This paper presents operation principles of PSSTs and analyzes the characteristics of them. Moreover, the paper focuses on summarizing the latest sensing parameters of PSSTs and their matching equipment. Finally, some potential applications and challenges faced by this emerging technique are discussed. Findings PSST is suitable for long-term and large-scale monitoring compared to conventional sensors because it gets rid of the limitation of battery and has relatively low cost. Also, the static information of objects stored in different PSSTs can be identified by a single reader without touch. Originality/value This paper provides a detailed and timely review of the rapidly growing research in PSST.

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Raheem Esmail Alselwi, Mohammed Abdul, Yan Chiew Wong, and Zul Atfyi Fauzan Mohammed Napiah. "Integrated cmos rectifier for rf-powered wireless sensor network nodes." Bulletin of Electrical Engineering and Informatics 8, no. 3 (2019): 829–38. http://dx.doi.org/10.11591/eei.v8i3.1579.

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This article presents a review of the CMOS rectifier for radio frequency energy harvesting application. The on-chip rectifier converts the ambient low-power radio frequency signal coming to antenna to useable DC voltage that recharges energy to wireless sensor network (WSN) nodes and radiofrequency identification (RFID) tags, therefore the rectifier is the most important part of the radio frequency energy harvesting system. The impedance matching network maximizes power transfer from antenna to rectifier. The design and comparison between the simulation results of one- and multi-stage differential drive cross connected rectifier (DDCCR) at the operating frequencies of 2.44GHz, and 28GHz show the output voltage of the multi-stage rectifier doubles at each added stage and power conversion efficiency (PCE) of rectifier at 2.44GHz was higher than 28GHz. The (DDCCR) rectifier is the most efficient rectifier topology to date and is used widely for passive WSN nodes and RFID tags.

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Sipilä, Erja, Johanna Virkki, Lauri Sydänheimo, and Leena Ukkonen. "Experimental Study on Brush-Painted Passive RFID-Based Humidity Sensors Embedded into Plywood Structures." International Journal of Antennas and Propagation 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/1203673.

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The integration of electronics and wood is an interesting research area due to the increasing interest to add functionality into various wooden products. The passive RFID-based humidity sensor tag prototype, presented in this paper, is fabricated directly on plywood substrate to be embedded into wooden structures, by using brush-painting and photonic sintering of cost-effective silver ink. To the best of our knowledge, this is the first demonstration of brush-painted antennas as sensor elements. The developed sensor tag is fully passive and small in size, meaning it can be permanently enclosed into wooden structures. In addition, the sensor tag has all the functionalities of an ordinary passive UHF RFID tag, and a peak read range of about 10 meters. The sensor performance was evaluated in normal room conditions, after two 100% relative humidity tests, and after drying in normal room conditions for 9 days. According to the results, the fabricated UHF RFID-based humidity sensor tags have a great potential to be utilized in humidity sensing applications, and also in normal automatic identification and supply chain control of various wooden products. In addition, the first results of more cost-effective brush-painted copper UHF RFID tags on plywood substrate are presented.

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Niu, Simiao, Naoji Matsuhisa, Levent Beker, et al. "A wireless body area sensor network based on stretchable passive tags." Nature Electronics 2, no. 8 (2019): 361–68. http://dx.doi.org/10.1038/s41928-019-0286-2.

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Ikemoto, Yusuke, Shingo Suzuki, Hiroyuki Okamoto, et al. "Force sensor system for structural health monitoring using passive RFID tags." Sensor Review 29, no. 2 (2009): 127–36. http://dx.doi.org/10.1108/02602280910936237.

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Plos, Thomas, and Christian Maierhofer. "On measuring the parasitic backscatter of sensor-enabled UHF RFID tags." Information Security Technical Report 17, no. 4 (2013): 239–52. http://dx.doi.org/10.1016/j.istr.2013.02.004.

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Piramuthu, Selwyn, and Robin Doss. "On sensor-based solutions for simultaneous presence of multiple RFID tags." Decision Support Systems 95 (March 2017): 102–9. http://dx.doi.org/10.1016/j.dss.2017.01.003.

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Catarinucci, Luca, Riccardo Colella, and Luciano Tarricone. "Design of Passive RFID Sensor Tags Enhanced by a Novel Logical Communication Procedure over LLRP." Journal of Communications Software and Systems 13, no. 2 (2017): 120. http://dx.doi.org/10.24138/jcomss.v13i2.380.

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Over the past decade, electromagnetic and communication science societies, along with improving the classical RFID technology, have put in a great deal of effort in designing novel and more complex UHF RFID tags with augmented capabilities. Novel tags offer additional functionalities besides identification by embedding sensors, actuators, and processing units. In this work an enhanced version of one of such devices, called SPARTACUS, is presented. While being completely passive, it conjugates identification, sensing, local computing, and actuation control and enables a proactive communication with any standard RFID reader. The paper presents details on a novel logical communication procedure over Low Level Reader Protocol (LLRP), besides discussing system validation and performance evaluation.

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Relyea, Robert, Darshan Bhanushali, Karan Manghi, et al. "Improving Multimodal Localization Through Self-Supervision." Electronic Imaging 2020, no. 6 (2020): 14–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.6.iriacv-014.

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Modern warehouses utilize fleets of robots for inventory management. To ensure efficient and safe operation, real-time localization of each agent is essential. Most robots follow metal tracks buried in the floor and use a grid of precisely mounted RFID tags for localization. As robotic agents in warehouses and manufacturing plants become ubiquitous, it would be advantageous to eliminate the need for these metal wires and RFID tags. Not only do they suffer from significant installation costs, the removal of wires would allow agents to travel to any area inside the building. Sensors including cameras and LiDAR have provided meaningful localization information for many different positioning system implementations. Fusing localization features from multiple sensor sources is a challenging task especially when the target localization task’s dataset is small. We propose a deep-learning based localization system which fuses features from an omnidirectional camera image and a 3D LiDAR point cloud to create a robust robot positioning model. Although the usage of vision and LiDAR eliminate the need for the precisely installed RFID tags, they do require the collection and annotation of ground truth training data. Deep neural networks thrive on lots of supervised data, and the collection of this data can be time consuming. Using a dataset collected in a warehouse environment, we evaluate the performance of two individual sensor models for localization accuracy. To minimize the need for extensive ground truth data collection, we introduce a self-supervised pretraining regimen to populate the image feature extraction network with meaningful weights before training on the target localization task with limited data. In this research, we demonstrate how our self-supervision improves accuracy and convergence of localization models without the need for additional sample annotation.

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Zeng, De Zhi, Li Ming Wu, Xin Luo, and Fu Jian Li. "The Design of a New Multi-Dimensional Parameter Acquisition Equipment with RFID Module in Sensitive Logistics Environment." Applied Mechanics and Materials 347-350 (August 2013): 3431–34. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.3431.

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In this thesis,I designed a new multi-dimensional parameter acquisition devices with a RFID module. The device combines RFID module and multiple sensor by microprocessor chip.To make it has the multiple functions of RFID tags, readers and external environment perception.

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Kang, Julian H., and Jasdeep Gandhi. "READABILITY TEST OF RFID TEMPERATURE SENSOR EMBEDDED IN FRESH CONCRETE." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 16, no. 3 (2010): 412–17. http://dx.doi.org/10.3846/jcem.2010.47.

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Concrete maturity technology is used to predict the strength of concrete being cured and make an informed decision for stripping the formworks. However, the current concrete maturity method uses temperature sensors that require an extensive wiring, which is not often acceptable on construction site due to harsh working environment. Radio Frequency Identification (RFID) technology provides a solution for the wiring issue because of its ability of sending data wirelessly. An RFID tag integrated with a temperature sensor and placed within fresh concrete may be able to read temperatures of concrete and transmit them to an RFID reader wirelessly in real‐time. It may then enable construction professionals to use concrete maturity technology to make an informed decision for stripping the formworks without having to worry about wiring issues on construction site. However, the previous research indicated that the RFID signal gets dispersed in liquid medium. One may speculate then how well RFID signals can travel through fresh concrete with high water content. Would water content of fresh concrete affect the readability of RFID tags? Would the tag's burying depth within fresh concrete affect its readability? This paper presents the results of our investigation on the readability of RFID tags placed in fresh concrete in the early stage of the curing process. Santrauka Betono stiprejimo technologija taikoma apdorojamo betono stiprumui prognozuoti priimant sprendima, kada galima nuimti klojinius. Vadovaujantis betono stiprejimo kontroles metodu, naudojami temperatūros jutikliai, prijungiami laidais, kuriuos ne visada patogu naudoti sunkiomis statybos aikšteles salygomis. Laidu galima atsisakyti taikant radijo dažnio nustatymo (RDN) technologija, nes ji leidžia siusti duomenis be laidu. RND siustuvas, pritvirtintas prie temperatūros jutiklio ir idetas i šviežia betona, gali matuoti betono temperatūra ir perduoti jos reikšmes i RND imtuva be jokiu laidu. Remiantis tokia informacija galima spresti, kada nuimti klojinius nesukeliant rūpesčiu su jutikliu laidais. Tačiau ankstesni tyrimai parode, kad skystoje aplinkoje RDN signalas išsklaidomas. Galima tik speti, kaip šis signalas sklis šviežio betono aplinkoje. Ar tokiame betone esantis vanduo leis skaityti RND siustuvu informacija? Ar siustuvo gylis šviežiame betone komplikuos jo informacijos skaitymo galimybe? Šiame straipsnyje aprašomi RND siustuvu informacijos tyrimo rezultatai, gauti idejus siustuvus ankstyvuoju šviežio betono stiprejimo laikotarpiu.

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Moon, Young Sik, Hyung Rim Choi, Jae Joong Kim, et al. "Development of IoT-Based Sensor Tag for Smart Factory." International Research Journal of Electronics and Computer Engineering 3, no. 4 (2017): 28. http://dx.doi.org/10.24178/irjece.2017.3.4.28.

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To reduce the rate of defective products and ensure the health of employees, it has become increasingly necessary to improve air quality in factories. To do so, it is important to accurately determine the air quality in the factory first. However, currently available industry-grade sensors require complex and often separate construction processes, making them difficult to use in complicated industrial sites. In order to solve such an issue, this study developed an IoT-based sensor that can collect data such as factory temperature, humidity, CO2 levels, dust, and stench. This study has also developed software to manage the IoT-based sensors, which can transmit the data via RF communication. Sensor tags were tested for basic environmental durability, including waterproof, dustproof, and vibration standards. The sensors can be connected via USB to a computer to configure its settings and access the stored data within the sensors. Unlike other existing environmental sensors, these can be easily installed anywhere as they transmit data via wireless communication. These sensors can also be installed in the factory to check the factory’s internal pollution level in real time. The application of this sensor will enable the real-time monitoring of air pollution in factories. By locating the polluted areas accurately, it will be possible to exercise distributed control over ventilation devices to prevent further spread of pollutants, while also pushing out the polluted air to maintain an optimal working environment. Future studies should develop a simulation model for determining the ideal installation location for the sensors. There also needs to be further studies in developing a distributed-controlled air-conditioning system to run empirical tests.

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Diete, Alexander, and Heiner Stuckenschmidt. "Fusing Object Information and Inertial Data for Activity Recognition." Sensors 19, no. 19 (2019): 4119. http://dx.doi.org/10.3390/s19194119.

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In the field of pervasive computing, wearable devices have been widely used for recognizing human activities. One important area in this research is the recognition of activities of daily living where especially inertial sensors and interaction sensors (like RFID tags with scanners) are popular choices as data sources. Using interaction sensors, however, has one drawback: they may not differentiate between proper interaction and simple touching of an object. A positive signal from an interaction sensor is not necessarily caused by a performed activity e.g., when an object is only touched but no interaction occurred afterwards. There are, however, many scenarios like medicine intake that rely heavily on correctly recognized activities. In our work, we aim to address this limitation and present a multimodal egocentric-based activity recognition approach. Our solution relies on object detection that recognizes activity-critical objects in a frame. As it is infeasible to always expect a high quality camera view, we enrich the vision features with inertial sensor data that monitors the users’ arm movement. This way we try to overcome the drawbacks of each respective sensor. We present our results of combining inertial and video features to recognize human activities on different types of scenarios where we achieve an F 1 -measure of up to 79.6%.

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Lakafosis, Vasileios, Amin Rida, Rushi Vyas, Li Yang, Symeon Nikolaou, and Manos M. Tentzeris. "Progress Towards the First Wireless Sensor Networks Consisting of Inkjet-Printed, Paper-Based RFID-Enabled Sensor Tags." Proceedings of the IEEE 98, no. 9 (2010): 1601–9. http://dx.doi.org/10.1109/jproc.2010.2049622.

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Girbau, D., A. Ramos, A. Lazaro, S. Rima, and R. Villarino. "Passive Wireless Temperature Sensor Based on Time-Coded UWB Chipless RFID Tags." IEEE Transactions on Microwave Theory and Techniques 60, no. 11 (2012): 3623–32. http://dx.doi.org/10.1109/tmtt.2012.2213838.

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