scholarly journals A Comparison of RFID Anti-Collision Protocols for Tag Identification

2018 ◽  
Vol 8 (8) ◽  
pp. 1282 ◽  
Author(s):  
Nikola Cmiljanic ◽  
Hugo Landaluce ◽  
Asier Perallos
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Communication Channel ◽  
Tag Identification ◽  
Collision Problem ◽  
Key Technologies ◽  
Different Types ◽  
Radio Frequency Signals ◽  
Frequency Identification ◽  
The Internet Of Things

Radio Frequency Identification (RFID) is a technology that uses radio frequency signals to identify objects. RFID is one of the key technologies used by the Internet of Things (IoT). This technology enables communication between the main devices used in RFID, the reader and the tags. The tags share a communication channel. Therefore, if several tags attempt to send information at the same time, the reader will be unable to distinguish these signals. This is called the tag collision problem. This results in an increased time necessary for system identification and energy consumption. To minimize tag collisions, RFID readers must use an anti-collision protocol. Different types of anti-collision protocols have been proposed in the literature in order to solve this problem. This paper provides an update including some of the most relevant anti-collision protocols.

Evaluation of RFID Tag Anti-Collision Algorithms in Supply Chain Automation

2019 ◽  
pp. 49-65
Author(s):  
Kamalendu Pal
Keyword(s):  
Supply Chain ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Object Identification ◽  
Collision Problem ◽  
Simulation Based ◽  
Radio Signals ◽  
Radio Frequency Signals ◽  
Frequency Identification ◽  
Measurement Mechanism

Radio Frequency Identification (RFID) is a technology that uses radio frequency signals to identify tagged objects. RFID is an important technology used by the Internet of Things (IoT) applications. This technology enables communication between the main devices used in RFID system, the reader, and the tags. The tags share a common communication channel. Therefore, if more than one tag tries to send information at the same time, the reader will be incapable of differentiating these signals in the case of radio signals interference. This phenomenon is known as tag collision problem. The problem of tag collision is one of the major disadvantages for fast tagged-object identification in supply chain management. This chapter describes four different types of binary search algorithms for avoidance of tag collision, and then presents a performance measurement mechanism for RFID application system. Finally, simulation-based experimental results on the performance of these algorithms are presented.

scholarly journals A Novel Printable Tag of M-Shaped Strips for Chipless Radio-Frequency Identification in IoT Applications

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2116
Author(s):  
Wazie M. Abdulkawi ◽  
Khaled Issa ◽  
Abdel-Fattah A. Sheta ◽  
Saleh A. Alshebeili
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Low Cost ◽  
Center Frequency ◽  
Spatial Density ◽  
Tag Identification ◽  
Horizontal Polarization ◽  
Iot Applications ◽  
Frequency Identification ◽  
Coding Capacity

There is a growing interest in chipless radio-frequency identification (RFID) technology for a number of Internet of things (IoT) applications. This is due to its advantages of being of low-cost, low-power, and fully printable. In addition, it enjoys ease of implementation. In this paper, we present a novel, compact, chipless radio-frequency identification (RFID) tag that can be read with either vertical or horizontal polarization within its frequency bandwidth. This increases the sturdiness and detection ability of the RFID system. In addition, the difference between the vertical and horizontal responses can be used for tag identification. The proposed tag uses strip length variations to double the coding capacity and thereby reduce the overall size by almost 50%. It has a coding capacity of 20 bits in the operating bandwidth 3 GHz–7.5 GHz, and its spatial density is approximately 11 bits/cm2. The proposed tag has a 4.44 bits/GHz spectral capacity, 2.44 bits/cm2/GHz encoding capacity, a spatial density at the center frequency of 358.33 bits/λ2, and an encoding capacity at the center frequency of 79.63 bits/λ2/GHz. A prototype is fabricated and experimentally tested at a distance of 10 cm from the RFID reader system. Then, we compare the measured results with the simulations. The simulated results are in reasonable agreement with the simulated ones.

scholarly journals Augmented RFID Technologies for the Internet of Things and Beyond

Sensors ◽  
2020 ◽  
Vol 20 (4) ◽  
pp. 987
Author(s):  
Luciano Tarricone ◽  
Jasmin Grosinger
Keyword(s):  
Internet Of Things ◽  
Complex Systems ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Cost Reduction ◽  
The Internet ◽  
Special Issue ◽  
Enabling Technologies ◽  
Frequency Identification ◽  
The Internet Of Things

Radio frequency identification (RFID) is one of the crucial enabling technologies for the Internet of Things (IoT). This is leading to a continuous augmentation of RFID technologies, in terms of sensing capabilities, energetic autonomy, usability, and cost affordability, and this special issue proposes an overview on such a challenging scenario. The proposed results, in terms of cost reduction, miniaturization, and compatibility with complex systems and technologies, as well as the identification of the relevant criticalities, also pave the way to future steps being taken that go beyond the current IoT.

Realization of Low Frequency Wakeup in Tire Encoded Radio Frequency Identification System

2014 ◽  
Vol 556-562 ◽  
pp. 2895-2898
Author(s):  
Wei Dong Yang ◽  
Li Li ◽  
Kai Peng
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Low Frequency ◽  
Vital Role ◽  
Simulation Software ◽  
Physical Models ◽  
Identification System ◽  
Radio Frequency Signals ◽  
Frequency Identification ◽  
Transmitted Waveform

In car tires coded identification system, radio frequency technology plays a vital role, the key to radio frequency signals transmitted process is waveform modulation. The key of adjusting the waveform is how to match its resistor and capacitor easily. In the paper their resistance and capacitance values are optimized by using the simulation software (Protues) to simulate the transmitted waveform, and based on matching results the optimized physical models are produced. The actual test results agree well with the simulation results. The method of simulation tests can save the resources effectively, and shorten the development time.

Design of Dual-Mode RFID Reader

2013 ◽  
Vol 756-759 ◽  
pp. 2209-2213
Author(s):  
Yu Lin Zhang ◽  
Tong Tong Wang ◽  
Chang Bin Shang
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Market Demand ◽  
Rfid Technology ◽  
Dual Mode ◽  
Power Requirement ◽  
Rfid Reader ◽  
Frequency Identification ◽  
Lower Transmission ◽  
The Internet Of Things

The Internet of Things accelerates the development of RFID technology. Logistics, transportation, aviation and other fields has increasingly high demand on the reader's identification distance and reliability. In order to meet the market demand, the design of RFID reader based on the dual-mode was proposed. One is 915MHz radio frequency identification mode. The other is 2.4GHz active radio frequency identification mode, which has lower transmission power requirement and farther valid identification distance. An ARM9 microcontroller is used as the main controller of the RFID reader. The design includes communicate with PC, control dual-mode RFID reader, control the reader to write and read tags and the study of anti-collision algorithm. In the testing of the system, it achieved to identify further. The performance is achieved and reliable.

RFID Tag Area Management Base on IOT

2013 ◽  
Vol 756-759 ◽  
pp. 4529-4532 ◽  
Author(s):  
Hao Zeng ◽  
Yan Hui Fu ◽  
Xu Chen
Keyword(s):  
Internet Of Things ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
The Internet ◽  
Rfid Tag ◽  
Frequency Identification ◽  
The Right ◽  
The Internet Of Things ◽  
Area Management

Traditional Radio Frequency Identification (RFID) Tag Equipment has some problems like these: it is difficult to realize if the tag is kept out, destroyed, or taken away abnormally. It cant accurately judge where the area the tag had moved to is. Besides, it is difficult to distinguish the right of the tag in the Tag Management. To solve these issues, this paper serves with a method which is based on the Internet of Things (IOT). It mainly includes as the following: the tag is activated in the Controlled Area, the judgment of the tag access the Controlled Area, whether the tag exists in the Controlled Area or not. These methods can reform the problems that the Traditional RFID Tag Equipment has.

scholarly journals Efficient DFSA Algorithm in RFID Systems for the Internet of Things

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Hsing-Wen Wang
Keyword(s):  
Internet Of Things ◽  
Radio Frequency Identification ◽  
Tag Identification ◽  
Business Applications ◽  
Rfid System ◽  
Wireless Telecommunication ◽  
Efficient Scheme ◽  
Frequency Identification ◽  
The Internet Of Things

Radio Frequency IDentification (RFID) used in business applications and international business management fields can create and sustain the competitive advantage, which is also one of the wireless telecommunication techniques for recognizing objects to realize Internet of Things (IoT) technologies. In construction of IoT network, the RFID technologies play the role of the front-end data collection via tag identification, as the basis of IoT. Hence, the adoption of RFID technologies is spurring innovation and the development of the IoT. However, in RFID system, one of the most important challenges is the collision resolution between the tags when these tags transmit their data to the reader simultaneously. Hence, in this paper I develop an efficient scheme to estimate the number of unidentified tags for Dynamic Framed Slotted Aloha (DFSA) based RFID system, with the view of increasing system performance. In addition to theoretical analysis, simulations are conducted to evaluate the performance of proposed scheme. The simulation results reveal the proposed scheme works very well in providing a substantial performance improvement in RFID system. The proposed algorithm promotes business effectiveness and efficiency while applying the RFID technologies to IoT.

RFID Tag Anti-Collision Protocols

2012 ◽  
pp. 133-154 ◽  
Author(s):  
Ching-Nung Yang ◽  
Jyun-Yan He ◽  
Yu-Ching Kun
Keyword(s):  
Radio Frequency ◽  
Large Volume ◽  
Radio Frequency Identification ◽  
Binary Tree ◽  
Radio Frequency Field ◽  
Rfid Tag ◽  
Rfid System ◽  
Collision Problem ◽  
Query Tree ◽  
Frequency Identification

A tag collision problem (or missed reads) in Radio Frequency Identification (RFID) system happens when multiple tags respond to a reader simultaneously. At this time, the reader cannot differentiate these tags correctly. This problem is often seen whenever a large volume of RFID tags are read together in the same radio frequency field. Tag collisions will degrade identification efficiency, and this unreliable identification will compromise the usefulness of RFID system. This chapter introduces tag collision problem and discusses tag anti-collision protocols, including ALOHA-based protocol, Binary Tree (BT) protocol, and Query Tree (QT) protocol. To date, most tag anti-collision protocols are QT protocols. Thus, in this chapter, the authors briefly describe some elegant researches on QT protocols, and also introduce their recent research results on QT protocols.

Discussion of Principle and Application for Internet of Things

2013 ◽  
Vol 347-350 ◽  
pp. 3322-3325
Author(s):  
Xiao Jing Li ◽  
Yan Hui Hu
Keyword(s):  
Internet Of Things ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Intelligent Design ◽  
Cost Effective ◽  
New Horizons ◽  
Key Technologies ◽  
Frequency Identification ◽  
Digital Agriculture ◽  
Systems Intelligence

The concept of Internet of Things (IoT) is opening new horizons in systems intelligence, where physical objects (embedded with sensory, identification and networking capabilities) can interact with other objects through the global infrastructure of wireless/wired Internet. These systems can be monitored and controlled by filtering and processing collected data. Such intelligent design will naturally result in efficient and cost effective systems. The concept of IOT and the architecture of IOT are discussed. The key technologies of IOT, including Radio Frequency Identification technology, Electronic Product Code technology are analyzed. The framework of digital agriculture application based on IOT is proposed.

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