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摘要： This article has been retracted. Please see the Retraction Notice for more detail: https://***/10.1186/s13635-024-00151-w.

摘要： This research attempts to design and develop a smart shopping trolley system with automated billing. The system was developed by using the following software and hardware components: (1) RC522 RFID card reader; (2) RFID tag; (3) load cell with HX711 amplifier; (4) push button with 10kΩ resistor; (5) 20x4 I2C LCD display; (6) Arduino Uno, and (7) Arduino IDE. The smart trolley system consisted of the following function modules: (1) item scanning; (2) item weighing; and (3) invoice generator. The perception of the effectiveness of the smart trolley system developed in this study was evaluated by using the questionnaire. The findings of the study suggest that most of the respondents were satisfied with the smart trolley system.

摘要： The main aim is to assist the visually impaired to dole out money from the ATM in autonomous space using innovative ratified biometry. Materials and methods: The Raspberry Pi is a microcontroller that acts to convert analog input signals to digital output signals. A Biometric system with IVRS at an ATM promotes the transaction to *** was used for determining the significance between ratified and smart ATMs. The parameters were maintained as threshold 0.05, enrollment ratio 1, confidence level 95%, and G-power 80%. Results: There exists a statistically insignificant difference (p=0.935, p>0.05) between ratified and smart ATMs. Ratified ATMs were found to perform better than smart ATMs and helped the visually impaired to withdraw money safely. Conclusion: This method not only aids people with visual impairment but also illiterates, dyslexia, and other disabilities.

摘要： The main aim of this study is to aid the visually impaired people to dispense the cash from the innovative ratified ATM in a procure way. The microcontroller (Raspberry Pi) receives the analog input signal and converts it into the digital signal and to relay the PC. RFID, biometrics, and IVRS technologies are used to complete the transaction in an established manner. The significance between the two groups was calculated using SPSS. The parameters were maintained as threshold 0.05, enrollment ratio as 1, confidence level 95%, and G-power 80%. Biometrics provide more security and reduce the effort of carrying a card or loss of card. The prominence and convenience for biometrics over RFID cards have more security, and for the visually impaired it is a more secure method. There exists a statistically insignificant difference between the two groups (p=0.935, p>0.05). Ratified ATM showed a higher mean (48.6) compared to substantiated ATM (46.15).RFID or biometrics and IVRS make not only visually impaired but also dyslexia and even illiterate to withdraw cash from the ATM.

摘要： The main aim of this paper is to aid the visually impaired people to dispense the cash from the innovative substantiated ATM in comparison with smart ATM in a procure way. The microcontroller (Raspberry Pi) receives the analog input signal and converts it into the digital signal and to relay PC. The significance between the two groups was calculated using SPSS. Total sample size is 20. Group 1 had the sample size of 10 where visually impaired and normal people used smart ATMs and the sample size of Group 2 was 10 where visually impaired and normal visioned people used substantiated ATMs. The parameters were maintained as threshold 0.05, enrollment ratio 1, confidence level 95% and G-power 80%. By using IVRS method the visually impaired can act on the prompt to pull out the cash and RFID avails a person by just spiling the card. There exists a statistically insignificant difference (p=0.935, p>0.05) between substantiated ATM and smart ATM groups. The combination of IVRS and RFID technology helps not only visually impaired but also illiterates to dispense cash from the ATM with convenient security.

摘要： The article discusses the stages involved in designing a database for a monitoring system for livestock farms using RFID devices. Currently, data on cattle in livestock farms is managed through traditional means, namely, on paper (special registers are maintained). This outdated method leads to chaos in data storage and wasted time. Therefore, there is a need for electronic systems that can provide farmers and veterinarians with electronic records of livestock information and enable monitoring based on this data. To address this issue, the article outlines the selection of main objects, the formation of the data structure, inter-table connections, and the choice of a suitable database management system for the livestock monitoring system using RFID devices. Additionally, the article details the development of a user interface.

摘要： The loss of RFID tags in cattle is a multi-faceted problem involving economic, logistical and animal health factors. This challenge requires innovative solutions that combine technology, data analytics and practicality. This paper proposes an extended algorithmic approach to investigate a method to reset lost RFID tags in cows and thus improve the efficiency of livestock management systems. The intricacies of RFID technology, the importance of livestock management in modern agriculture, and various factors that cause tag loss are studied. However, the focus of our discussion is on presenting an algorithmic solution that not only detects missing tags, but also simplifies the tag reset process and uses resources efficiently.

关键词： 物联网   课程思政   RFID原理与应用   思政元素  

摘要： 在深入分析高校工科专业课程思政建设存在问题的基础上,本文以“RFID原理与应用”课程为例,按照教育部《课程思政建设指导纲要》的要求,依据工科专业课程特点,提出了课程思政教学的一些改革方法,从教学内容与教学方法的优化、教学思政元素的融入与教学效果评价等方面作为主要切入点,深入挖掘课程主要内容知识点所关联的思政元素,力求潜移默化地实现对学生的价值引领、德育的培养,实现知识传授与能力培养、价值塑造有机融合。

关键词： Sensors   Ice   Resonant frequency   Temperature sensors   Permittivity   Containers   Vivaldi antennas   Antenna miniaturization   chipless RFID   cold chain integrity   permittivity sensing   sensors  

摘要： Chipless RFID sensor is currently one of the most promising sensor designs, especially in food safety sector, because it has a robust structure and is inexpensive for mass production. This article proposes a simple, compact, and low-cost chipless RFID sensor tag for frozen food monitoring. The system consists of an interrogator antenna, which is an antipodal Vivaldi antenna, and a chipless RFID sensor tag inside a flat container that contains a small quantity of ice. When receiving power from the interrogator antenna, the sensor alters the frequency of the reflected signal if the ice melts. One of three states of the material in the container can be detected, i.e., ice, water, and air (empty container). The peak of the frequency response exhibits distinctively narrow 3-dB bandwidth of 35-49 MHz, allowing multiple sensors to operate simultaneously within limited bandwidth and space;peak center frequency is observed at 751 or 838 MHz, for, respectively, ice and air, with no peak present for water. The system is simulated, analyzed, and verified by measuring in free open space in a realistic environment. The measurement for ice melting over time is also measured and shown that frequencies of the peaks are slowly decreasing during the first 10 min after defrost and completely disappears after 15 min. The resonant peak reappears at 826 MHz after the tag is completely dry. A good tolerance to the background is also found when complex dielectric material is placed next to the sensor.

关键词： 工业和信息化部   《规定》   频段  

摘要： 近日,工业和信息化部发布了《900MHz频段射频识别(RFID)设备无线电管理规定》(以下简称《规定》)。为更好地理解和落实《规定》,工业和信息化部相关负责同志就有关内容进行了解读。