Papers by Keyword: RFID

Abstract: With growing consumer health awareness, ensuring food safety and quality throughout the supply chain is crucial, particularly for perishable goods. Contamination can occur during production, processing, or distribution, making real-time monitoring essential. This study proposes an affordable Smartphone-based food traceability system (FTS) that utilizes RFID technology and smartphone sensors. A smartphone-based RFID reader tracks products, while integrated sensors monitor temperature, humidity, and location during storage and transport. The system is assessed in the kimchi supply chain in Korea, providing real-time data to both managers and consumers. It offered comprehensive product tracking, including temperature and humidity records, ensuring transparency and safety. Compared to traditional methods, the proposed system demonstrated improved efficiency in handling large volumes of data while maintaining accurate traceability. The results highlight its potential for enhancing food safety and quality across supply chains.

Abstract: In this paper, an examination hall assistive robot (EHAR) had been developed to operate in an examination hall, to collect and deliver extra answer booklet for examination candidates. The systems will respond to user or student request through a table transmitter on each table via radio communication. The request by the students is collected by a CPU, before it is transmitted to the robot. The robot moves by following line on floor and read RFID tag for localization purpose. The robot has the ability to stop or avoid obstacle along the path received from the information obtained by the ultrasonic sensors. After the integration process, the performance of the developed system had been tested. The test had been carried out by moving EHAR through 3 points (RFID tags), where EHAR is required to turn on certain angle and direction after each tags read. The test was then repeated for another 10 times to obtained correct average results. The percentages of the average successful turns made by the EHAR are 83.3%. Therefore, it is hoped that this system will be implemented in exam halls and serves its purposes.

Abstract: With the development of economy, steel structure is more and more widely applied in China. With the deepening of sustainable development, the industrialization of construction become more and more hot in construction industry. Steel Structure is expected to be an important building material of industrialization. Obviously steel structure has been a main forms using in China. According to the characteristics of steel structure, smart material of BIM and RFID can be chosen as a new integration. This smart material can be used to solve the key technology of lifecycle management and information is shared, exchange with each other between participants during each stage.

Abstract: This paper presented a new design of bendable hexagonal resonator for chipless RFID tag. A linearly polarized plane wave and Radar Cross Section (RCS) probes were used in simulation set-up. The optimized resonator was fabricated on a thin fast-film substrate with dielectric constant, ε_r=2.7 and substrate thickness, t = 0.13 mm. The fabricated resonator consisted of 3 hexagonal slots which represented three bit 1s. The measurement was performed to validate the designed resonator. It was measured using two transmitting and receiving horn antennas along with the network analyzer. The measured magnitudes were-24.292 dB, -28.854 dB and-32.234 dB.

Abstract: This paper presents case study of data acquisition in non-automated discrete production system. The issue of acquisition of data from the production system in order to support company management is essential for the integration of business and manufacturing areas of the company. Properly organized data acquisition system, consisting of hardware, software and organizational solutions, should provide access to real-time data on production tasks, flow of materials and work in progress, usage and effectiveness of workers and equipment, and the quality of production. Availability of data depends on type of production system, more precisely on the level of automation of technological processes. The Manufacturing Information Acquisition System (MIAS) methodology has been used in order to support design of the data acquisition system for the company producing large tanks, in which there is no automated equipment and most of production operations are realised manually. The algorithm of acquiring data from workers, organisational solutions and data processing in developed “Mistrz” IT system has been described, as well as problems with MIAS encountered during system operation in early stages of introduction.

Abstract: The article deals with the introduction of RFID technology to the broad gauge railway transportation. Interest in RFID technology is growing not only in the world but also in Slovakia so article is focused on the proposal on the transport of Fiat, where RFID system would be implemented for shipment of containers that are transported through Combined Transport Terminal Dobrá farther to the Russian market. Model calculation of return shows an interesting profitability and return on investment. In addition, the containers could be observed in real time, which is obviously a great advantage that the implementation of RFID technology provides.

Abstract: There will be increasing demand for high confidentiality, integrity, authentication, for widely deployment of the next RFID generation beside that, the focus will be on avoiding encryption algorithms; as these require more complex modulation, to secure communication between RFID’s tags and readers. In this paper, the focus will be on securing the communication channel between tags and readers at the physical layer, rather than to secure the contents of RFIDs data by encryption. The RFID reader initially will communicate with the tag through a narrowband communication and subsequently through broadband communication, by generating ultra wide-band signal using pulse position modulation with time hopped, it can be a novel approach for RFID security as it simplify or eliminate cryptographic requirements with the same security level of existing passive RFIDs, also it allow simultaneous multiple access without-collision, which will enhance the overall RFID systems performance. The design of the system will be shown by modeling the communication, the designing details of the transmitter as well as the receiver, finally showing the simulated results of modulated signal with its specific parameters as well as the receiver performance.

Abstract: Radio Frequency Identification (RFID) is widely used to track and trace objects in supply chain management. However, massive uncertain data produced by RFID readers are not suitable for directly use in RFID applications. This is due to repetitive readings which are unnecessary because it contains only the same information. Thus, an approach to remove repetitive readings in supply chain is paramount to minimize massive data storage that could affect query performances. We propose a simplified approach, which is suitable for a wide range of application scenarios. Experimental evaluations show that our approach is effective and efficient in terms of the removing duplicate readings and compressing the massive data significantly.

Abstract: The autonomous stratagem combines the concepts of traveling salesman problems (TSP), radio frequency identification (RFID), E-compass wireless networks sensors and the evolutional particle swarm optimization (PSO) to identify the optimal routing paths in the dynamic indoor space. A desired the setting lot as soon as possible. Four active RFID tags amounted in the rectangle type environments and indication of E-compass are proposed to identify the robot position. The routing concept of the TSP is developed by the evolutionary PSO learning scheme to approach the valid routing-path of the mobile robot. The developed mobile robot system, with the proper number of fuzzy membership functions, simultaneously achieves the multiple objectives of avoiding obstacles by the selected shortest routing path.

Abstract: For tag anti-collision algorithm in the current RFID system, considering the problems of tag privacy leakage and tag being tracked, a security solution based on Hash function was put forward. A theoretical analysis and a security evaluation about the proposed solution are also made. Through the analysis and evaluation, it turns out that this solution can prevent tag from privacy leaking, being tracked, cloning and counterfeit.