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5th International Conference on Measuring Technology and Mechatronics Automation (ICMTMA)

作者： Xue Jianbin Wang Wenhua Li Songbai Zhang Ting Lanzhou Univ Technol Sch Comp & Commun Lanzhou 730050 Peoples R China

ISBN: (纸本)9780769549323

RFID has become a key technology with the development of the Internet of Thing, its development and application is limited by the tag anti-collision technology which has become an urgent problem needs to be solved. In this paper, the binary search algorithm and multi-state binary search algorithm are compared and analyzed in detail, and an anti-collision algorithm based on counting mechanism and multi-state binary(CMS) is proposed. By utilizing the obtained collision information collected from preprocessing, the supreme conflict counting mechanism is introduced into the multi-state binary search algorithm. Theoretical analysis and simulation results show that the proposed algorithm can greatly reduce the query search times, the length of reader's send command and tag's response command as well as the identification time.

关键词： Radio Frequency Identification (RFID) anti-collision algorithm Binary search algorithm Manchester

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anti-collision algorithm for RFID system using adaptive Bayesian Belief Networks and it's VLSI Implementation 11

Anti-collision algorithm for RFID system using adaptive Baye...

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11th International Conference on Intelligent Systems and Control (ISCO)

作者： Bag, Joyashree Roy, Subhashis Sarkar, Subir Kumar Jadavpur Univ Dept Elect & Telecommun Engn Kolkata 700032 India

ISBN: (纸本)9781509027170

In Radio Frequency Identification system, reader collision problems are generally mitigated by maximizing the total effective interrogation area of an RFID reader network or by automatic adjustable frame size of reader, etc. This paper proposes a novel anti-collision algorithm for RFID system using adaptive Bayesian Belief Networks. Bayesian belief networks are suitable for target recognition within a network using the category, identity and type or class of a target. These three attributes are being modelled based on the theory, which relies on previous and related trials approach. It is a classical problem which uses the observers' belief that an event will occur or not. Similarly, it can predict from previous trial reports whether a node is reliable or not. An RFID network faced with the reader collision problem when multiple readers are deployed densely and enters the region of another reader. Tags receive signal from more than one reader and instant identification by a single reader becomes a problem. The aim of this paper is to develop an efficient anti-collision algorithm, where using BBN, the reader identifies foreign elements like unwanted tags and readers and detect the specific/authentic tags. Similarly, the tag can respond the specific reader only and rejecting signal from unwanted readers, thus control the transmitting characteristics and minimizes the collision problems. In this paper, the authenticity checker is developed and implemented for RFID system using VHDL code and simulated the design with Xilinx ISE 14.3 simulation tools and high performance FPGA board.

关键词： REID system anti-collision algorithm Bayesian Belief Network RTL schematic FPGA

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Research on data fusion algorithm and anti-collision algorithm based on internet of things

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FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE 2018年 85卷 107-115页

作者： Cui, Yongfeng Ma, Yuankun Zhao, Zhongyuan Li, Ya Liu, Wei Shu, Wanneng Zhoukou Normal Univ Sch Sci & Technol Zhoukou 466001 Henan Peoples R China South Cent Univ Nationalities Coll Comp Sci Wuhan 430074 Hubei Peoples R China

Internet of Things is involved in all aspects of human life, work, health and social areas, which will have a significant impact on the future development of the global economic society. Perception and recognition technology is the basis of the Internet of things, and data fusion and anti-collision technology are the sensor network and radio frequency identification research focus. This paper focuses on the key technology of the sensing layer of the internet of things, that is, the data fusion of the sensor network and the multi-label anti-collision technology of the radio frequency identification system, which mainly includes the following work. This paper introduces the hierarchical architecture of the Internet of things and its key technologies, and introduces the sensing and recognition technology of the internet of things, and expatiates the data fusion model and routing algorithm of the sensor network and the working principle and anti-collision problem of the RFID system. The improved clustering routing protocol Leach based on distributed data fusion effectively prolongs the lifetime of the sensor network. A data fusion algorithm based on Gauss membership function has introduced, and the fusion technology and routing technology have combined to process the data, which improves the efficiency and accuracy of data acquisition in Sensor Networks. An efficient binary search anti-collision algorithm called AEBS, with unknown tag number estimation, which has proposed to recognize unknown tags in the range of reader's function. Theoretical analysis and experimental simulation results show that the AEBS algorithm improves the efficiency and stability of the system identification and reduces the recognition time of the whole system. (C) 2018 Elsevier B.V. All rights reserved.

关键词： anti-collision algorithm Data fusion Internet of things RFID system Sensor network

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Wireless Power Supply Sensing Tags Based on anti-collision algorithm for Sensing Systems

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IEEE ACCESS 2024年 12卷 32381-32394页

作者： Pi, Daneng Hubei Normal Univ Sch Elect Engn & Automat Huangshi 435002 Peoples R China

In wireless sensor networks, sensing tags are battery powered, which also limits the battery life. Therefore, it is particularly important to study self powered sensing tags. At present, passive wireless identification systems can achieve self powered communication through tags. However, wireless power supply sensing systems have problems such as low efficiency and short communication distance. To reduce the power consumption of sensing tags and improve the efficiency of sensing systems, a passive wireless low-power hydrogen concentration sensing system is designed. To further reduce the power consumption of sensing tags, a passive wireless magnetic field intensity sensing system is developed. In addition, to solve the low efficiency of multiple sensing labels in wireless power supply sensing systems, an efficient anti-collision algorithm based on dynamic binary query trees is designed. According to the research results, in the cold start indoor environment, the energy collection rate of the sensing tag designed in the research was 0.081mJ/s, and the energy collection efficiency was 25.7%. In single/dual sensor mode, the maximum values of sensing error were 2.1% and 5.2%, respectively. The maximum recognition time of the anti-collision algorithm based on dynamic multi base query tree was 2.78s, and the minimum value was 1.31s. The research results can provide methodological and technical support for the improvement of wireless power supply sensing systems, expanding the application range of wireless power supply sensing systems.

关键词： Sensors Wireless sensor networks Wireless communication Heuristic algorithms Power demand Hydrogen Radiofrequency identification Battery management systems anti-collision algorithm sensing wireless passive tag

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Improved RFID anti-collision algorithm

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AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS 2013年第3期67卷 256-262页

作者： Djeddou, Mustapha Khelladi, Rafik Benssalah, Mustapha Mil Polytech Sch Commun Syst Lab Algiers 16111 Algeria

In this paper, we propose an improved anti-collision technique based on the binary search algorithm. The improvement is achieved thanks to the manner of the requests' building. This latter reduces considerably the responding tag's numbers and therefore, decreases the probability of bit's collision. Further, the algorithm provides a noticeable advantage for the length of transmitted binary data compared against basic binary search and dynamic binary search algorithms. Besides, it provides same performance in terms of average request's number making the identification process faster, and the expose time of information is then reduced. (C) 2012 Elsevier GmbH. All rights reserved.

关键词： Radio frequency identification (RFID) anti-collision algorithm Binary search algorithm

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CNCAA: A new anti-collision algorithm using both collided and non-collided parts of information

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COMPUTER NETWORKS 2020年 172卷 107159-107159页

作者： Abbasian, Amir Safkhani, Masoumeh Shahid Rajaee Teacher Training Univ Comp Engn Dept Tehran Iran

Nowadays, identification through radio frequency systems (RFID) has been employed in many applications such as supply chain management, banking, toll payment, theft prevention, E-health and so on. One of the main challenges in RFID systems is the tag's collision problem in collision slot. Up to now, to solve RFID tag's collision issue, many anti-collision algorithms have been proposed. However, most of them don't have high efficiency and are not able to identify tags in collision slot. In this paper, we propose a new anti-collision algorithm based on ALOHA called CNCAA which uses both collided and non-collided parts of information in collision slots for tag's identification. To the best of our knowledge, all of the anti-collision algorithms until now either use the collided part of information or the non-collided part of information in collision slot. Based on our simulation results, the system efficiency of the proposed algorithm has a significant difference compared to other anti-collision algorithms and improves it. The system efficiency of the CNCAA is 1.04 at best when the frame length is half of the number of tags which has improved by at least 20% compared to existing anti-collision algorithms.

关键词： CNCAA RFID anti-collision algorithm Collided Information Non-collided System Efficiency

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A Novel Query Tree anti-collision algorithm for RFID

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APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL 2019年第3期34卷 490-496页

作者： Yang, Fan Zhao, Lei Chen, Hu Hao, Shuixia Jiangsu Normal Univ Jiangsu Key Lab Educ Big Data Sci & Engn Xuzhou 221116 Jiangsu Peoples R China Nanjing Agr Univ Coll Engn Nanjing 210031 Jiangsu Peoples R China China Univ Min & Technol Sch Informat & Control Engn Xuzhou 221116 Jiangsu Peoples R China

In order to further decrease the probability of the collision and reduce communication complexity, a new low complexity anti-collision algorithm for RFID is proposed using Query Tree. The proposed algorithm can reduce the probability of collision and the traffic of data communication by using tag grouping and setting rules, respectively. The simulation results show that the proposed scheme consumes fewer slots and has lower communication complexity.

关键词： anti-collision algorithm data clipping Query tree RFID

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A Novel anti-collision algorithm in RFID for Internet of Things

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IEEE ACCESS 2018年 6卷 45860-45874页

作者： Bai Zhi Wang Sainan He Yigang Hunan Inst Technol Xiangtan 411101 Peoples R China Hunan Univ Coll Elect & Informat Engn Changsha 410082 Hunan Peoples R China

This paper studies a novel anti-collision algorithm that is proposed in view of the problem, i.e., label reading collision in radio-frequency identification for Internet of Things. Based on the theoretical foundation of label grouping, the algorithm introduces the Mahalanobis distance and density function to traditional fuzzy C-means clustering grouping algorithm by using EPC code and effectively solves the problem of isolated points of clustering and the optimization problem of initial clustering center. Then, the algorithm realizes effective grouping of labels and distributing identification serial numbers to labels upon the distance from interior labels to the center of clustering. Meanwhile, the efficiency of algorithm can be improved through dynamically setting the frame slot time of readers upon the grouping condition to prevent collision. This paper analyzes the throughput rate theoretically in detail. The simulation results of throughput capacity, throughout rate, and slot efficiency of the algorithm manifest that the algorithm is superior to the most commonly used dynamic binary-tree algorithm and current dynamic ALOHA algorithm in performance.

关键词： Radio frequency identification sensors system Internet of Things (IOT) anti-collision algorithm tag grouping Mahalanobis distance density function

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An RFID anti-collision algorithm with dynamic condensation and ordering binary tree

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COMPUTER COMMUNICATIONS 2013年第17-18期36卷 1754-1767页

作者： Lai, Yuan-Cheng Hsiao, Ling-Yen Lin, Bor-Shen Natl Taiwan Univ Sci & Technol Dept Informat Management Taipei Taiwan

In many RFID applications, the reader repeatedly identifies the same staying,tags. Existing anti-collision protocols can rapidly identify the staying tags by remembering the order in which the tags were recognized in the previous identification process. This paper proposes a novel protocol, dynamic blocking adaptive binary splitting (DBA), based on the blocking mechanism, which prevents the newly-arriving tags from colliding with the staying tags. Moreover, DBA utilizes a dynamic condensation technique to reduce the number of idle slots produced when recognized tags leave. Following the condensation process, multiple staying tags may be required to share the same slot, and thus may cause collisions among them. Accordingly, an efficient ordering binary tree mechanism is proposed to split the collided tags deterministically according to the order in which they were recognized. The analytical and simulation results show that DBA consistently outperforms previous algorithms in all of the considered environments. (C) 2013 Elsevier B.V. All rights reserved.

关键词： RFID anti-collision algorithm Blocking algorithm Condensation

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An anti-collision algorithm for localization of multiple chirp-spread-spectrum nodes

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EXPERT SYSTEMS WITH APPLICATIONS 2012年第10期39卷 8690-8697页

作者： Cho, Hyeonwoo Kim, Sang Woo Pohang Univ Sci & Technol Div Elect Engn Pohang 790784 Gyungbuk South Korea

This paper develops an anti-collision algorithm for localization of multiple chirp-spread-spectrum (CSS) tag nodes. The CSS is a physical layer defined in IEEE 802.15.4a, and can be used for ranging between two CSS nodes. This ranging operation involves measuring the time-of-flight of the chirp-modulated signal. If anchor CSS nodes are installed at the known positions, a tag CSS node can calculate its coordinate based on the distances between these nodes. When there are multiple tag nodes, however, the tag nodes can fail to calculate their locations because their ranging signals collide with each other. Although the CSMA/CA is adopted for the medium access control protocol of IEEE 802.15.4a, it is not suitable for localization because a tag node must measure at least three successive distances for two-dimensional localization. The proposed algorithm uses a back-off time to prevent collisions, and all tag nodes compete to acquire the authority to use a channel. The proposed algorithm uses two special packets to synchronize the tag nodes for localization. For a theoretical evaluation of the proposed algorithm, the probability of the channel occupation of each tag node is analyzed. Through experiments, the performance of the anti-collision algorithm is verified. (c) 2012 Elsevier Ltd. All rights reserved.

关键词： Chirp-spread-spectrum IEEE 802.15.4a Localization Multiple nodes anti-collision algorithm

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