This paper looks into the possible methods of harvesting energy for applications involving wireless sensors from renewable or sustainable sources. An overview of the fundamentals of energy harvesting ...models using renewable sources and the advancements in the components used for this purpose is given. It also provides an analysis of the issues that are restricting the current harvesting models and indicates possible advances in technologies that may soon solve those problems. There are two main issues that plague these harvesting models. Firstly, the technology involved in the actual harvesting of renewable energy sources is not well developed and offer poor efficiency. In addition to that, most of the models need a permanent storage device, such as a battery or capacitor in order to operate. This is a serious drawback in applications involving wireless sensors as these devices have limited capacity, lifetime, and require a large area to work efficiently. This is most often not favorable as the attractions of using wireless sensors are in its portability and form. This paper looks into the studies dedicated to solving these problems. The latter part of the paper contains a discussion regarding the technologies that are best suited for applications in wireless sensors. The two most readily available and feasible options of a sustainable energy for these applications are found out to be RF (Radio Frequency) signal and solar radiation. Therefore, the final part of the paper concentrates on reviewing a model that may potentially be able to serve as a basis for a singular model for any kind of energy harvesting from renewable sources.
Physical Internet (PI, π) has been widely used for transforming and upgrading the logistics and supply chain management worldwide. This study extends the PI concept into manufacturing shop floors ...where typical logistics resources are converted into smart manufacturing objects (SMOs) using Internet of Things (IoT) and wireless technologies to create a RFID-enabled intelligent shop floor environment. In such PI-based environment, enormous RFID data could be captured and collected. This study introduces a Big Data Analytics for RFID logistics data by defining different behaviours of SMOs. Several findings are significant. It is observed that task weight is primarily considered in the logistics decision-making in this case. Additionally, the highest residence time occurs in a buffer with the value of 12.17 (unit of time) which is 40.57% of the total delivery time. That implies the high work-in-progress inventory level in this buffer. Key findings and observations are generated into managerial implications, which are useful for various users to make logistics decisions under PI-enabled intelligent shop floors.
Efficient RFID Scheme in Healthcare Systems Ferucio Laurențiu, Țiplea; Hristea, Cristian; Gifu, Daniela
Procedia computer science,
2023, 2023-00-00, Letnik:
225
Journal Article
Recenzirano
Odprti dostop
Healthcare offers a rich palette of potential applications of RFID technology. Healthcare provides a rich palette of possible applications of RFID technology. Besides traditional uses such as ...tracking medical equipment and devices or access control, healthcare can benefit even more significantly from RFID technology. However, using the RFID technology in healthcare raises various problems of scalability, timely identification of tags, security, privacy, and efficient implementation in practice. That is because such systems contain many tags, operate with private personal data, and must respond promptly in concrete, practical situations to avoid malfunctions (errors in the decision process, traffic congestion, and so on). This paper discusses the fundamental requirements of RFID systems raised by healthcare and the limitations of existing schemes. Then, we propose a new RFID scheme that achieves mutual authentication, strong privacy, and constant-time identification in the HPVP model. The scheme employs a secure symmetric-key encryption scheme, making it very efficient in implementation and physically unclonable functions (PUFs) to protect the secret key against adversaries with corruption capabilities.
A Reusable Battery-Free RFID Temperature Sensor Shafiq, Yousuf; Gibson, John S.; Kim, Hyun ...
IEEE transactions on antennas and propagation,
10/2019, Letnik:
67, Številka:
10
Journal Article
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A new passive radio frequency identification (RFID) temperature sensor is presented for monitoring the temperature of the surrounding environment of perishable goods, such as foods and medicines, in ...the cold supply chain. Specifically, this sensor self-tunes between 902 and 928 MHz, operating in the RFID UHF band, as the temperature rises or falls beyond a certain threshold. The novelty of this passive sensor is its ability to operate through multiple high-/low-temperature cycles. The design consists of a planar dipole antenna with a customized integrated T-match network (ITMN) that is actuated above a ground plane. The actuation shifts the operating frequency and is controlled by liquid crystal elastomers (LCEs), which are programmable and reversible temperature-dependent polymers. As a result, our design can be reconfigured to operate at various temperature ranges for which the LCE is designed to operate. The analysis is performed to examine the performance of the proposed sensor near practical items and when it is in close-proximity to an additional sensor with varying orientation. Finally, the sensor's performance was validated through full-wave simulations using ANSYS HFSS and measurements. Both the simulation and measurements agreed well with theory.
Secure real-time data about goods in transit in supply chains needs bandwidth having capacity that is not fulfilled with the current infrastructure. Hence, 5G-enabled Internet of Things (IoT) in ...mobile edge computing is intended to substantially increase this capacity. To deal with this issue, in this article, we design a new efficient lightweight blockchain-enabled radio frequency identification (RFID)-based authentication protocol for supply chains in 5G mobile edge computing environment, called lightweight blockchain-enabled RFID-based authentication protocol (LBRAPS). LBRAPS is based on bitwise exclusive-or (XOR), one-way cryptographic hash and bitwise rotation operations only. LBRAPS is shown to be secure against various attacks. Moreover, the simulation-based formal security verification using the broadly-accepted Automated Validation of Internet Security Protocols and Applications (AVISPA) tool assures that LBRAPS is secure. Finally, it is shown that LBRAPS has better trade-off among its security and functionality features, communication and computation costs as compared to those for existing protocols.
Adhesive RFID Sensor Patch for Monitoring of Sweat Electrolytes Rose, Daniel P.; Ratterman, Michael E.; Griffin, Daniel K. ...
IEEE transactions on biomedical engineering,
2015-June, 2015-Jun, 2015-6-00, 20150601, Letnik:
62, Številka:
6
Journal Article
Recenzirano
Wearable digital health devices are dominantly found in rigid form factors such as bracelets and pucks. An adhesive radio-frequency identification (RFID) sensor bandage (patch) is reported, which can ...be made completely intimate with human skin, a distinct advantage for chronological monitoring of biomarkers in sweat. In this demonstration, a commercial RFID chip is adapted with minimum components to allow potentiometric sensing of solutes in sweat, and surface temperature, as read by an Android smartphone app with 96% accuracy at 50 mM Na + (in vitro tests). All circuitry is solder-reflow integrated on a standard Cu/polyimide flexible-electronic layer including an antenna, but while also allowing electroplating for simple integration of exotic metals for sensing electrodes. Optional paper microfluidics wick sweat from a sweat porous adhesive allowing flow to the sensor, or the sensor can be directly contacted to the skin. The wearability of the patch has been demonstrated for up to seven days, and includes a protective textile which provides a feel and appearance similar to a standard Band-Aid. Applications include hydration monitoring, but the basic capability is extendable to other mM ionic solutes in sweat (Cl - , K + , Mg 2+ , NH 4 + , and Zn 2+ ). The design and fabrication of the patch are provided in full detail, as the basic components could be useful in the design of other wearable sensors.
Due to the growing customer health awareness, food quality and safety has gained considerable attention. Therefore, consumer demand for complete visibility of food quality and history along the ...supply chain has significantly increased. This study proposes an e-pedigree food traceability system, utilizing radio frequency identification technology to track and trace product location and wireless sensor network to collect temperature and humidity during storage and transportation. Missing sensor data may occur in real cases, as sensor data are lost or corrupted due to many reasons. The proposed system utilizes data mining techniques to predict missing sensor data. The proposed system was tested for kimchi supply chain in Korea, and showed significant benefit to managers as well as customers by providing real-time location as well as complete temperature and humidity history. The multilayer perceptron model provided the best prediction accuracy for missing sensor data compared to other models. The proposed e-pedigree food traceability system will help managers optimize food distribution while also increasing customer satisfaction, as it can monitor product freshness.
•Proposing e-pedigree food traceability system for food supply chain.•Implementing the traceability system based on the RFID.•Monitoring the temperature-humidity based on WSN (Wireless Sensor Network).•Utilizing data mining technique to predict missing sensor data.•Presenting system performance and data mining accuracy for sensor data.
RFID (Radio Frequency Identification) technology has considerably grown in the past few years and is nowadays sought to be implemented for the identification of products and for traceability in the ...agrifood sector, ensuring food safety and quality. RFID is now considered as the worthy successor of the barcode with a foreseen expansion not only in the agrifood sector, but also in industrial sectors for environmental monitoring (temperature, relative humidity and luminosity) through namely WSN (Wireless Sensor Network) and WST (Wireless Sensor Technology). Research studies are being progressively performed in the objective of coupling sensors to the RFID technology. This interfacing would lead to a better monitoring of packaging headspace by means of the development of different sensors, as well as their coupling to RFID tags through the microchip or directly to the RFID antenna. The present work gives an overview of the basics of the RFID technology, the existing sensors and the ones being developed to be interfaced with the technology, as well as the existing RFID sensor tags. The presented literature studies, mainly in the agrifood sector, demonstrate how RFID may meet our needs for a better monitoring of food quality by coupling radio frequency communication and traceability. The implementation of sensors which is a very new technology being studied and concomitantly developed may lead to a better detection of food degradation markers and thus to a reduction in food loss which is one of the world's major issue.
•Novel study based on RFID tags to be coupled to sensors.•Passive and active RFID systems.•Study of different types of sensors.•RFID sensor tags in food industry for traceability.•Food monitoring for safety.
In order to reduce food waste and meet the needs of the demanding modern consumer regarding the quality of food items, it is crucial to monitor the supply chain and storage conditions of perishable ...food products. Considering this scenario, temperature plays an important role on food safety and quality during storage and supply. In this work, a critical temperature indicator (CTI) based on a solvent melting point is developed. Furthermore, the present CTI working principle is improved by the use of microfluidics technology. As final result, a novel and functional CTI-smart sensor which combines irreversible visual color changes and radio frequency identification (RFID) technologies is achieved. Such CTI integrated to a RFID tag provides a unique advantage to monitor the supply chain in real time by the simple use of a RFID reader in strategic points.
•We present the development of a critical temperature indicator (CTI) integrated with RFID.•It is based on the melting point of a specific solvent.•Several different designs were demonstrated.•A final CTI design within clear visual response is proposed based on microfluidics.•The CTI-smart sensor presents fast response to the critical temperature of 18–19 °C.
This letter presents a novel, cost-effective, and easy-to-deploy solution to discriminate the direction of goods crossing a UHF radio frequency identification (RFID) gate in a warehouse scenario. The ...system is based on a grid of UHF-RFID tags deployed on the floor underneath the gate equipped with a single reader antenna. When a transpallet crosses the gate, it shadows the tags of the deployed grid differently, according to the specific direction, namely incoming or outgoing. Such distinguishable signature is employed as input of a recurrent neural network. In particular, the number of readings for each tag is aggregated within short time windows, and a sequence of binary read/missed tag data over the time is extracted. Such temporal sequences are used to train a long short-term memory neural network. Classification performance of the proposed method is shown through a set of measurements in an indoor scenario.
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