Rfid vs wifi upsc Interview for selected candidates began from 7th Jun 12, 2023 · Asset Tracking: RFID vs. Although they are both communication tools that rely on radio waves, they are different in terms of range, application and operation. RFID – Radio Frequency IDentification. Devices that use Wi-Fi can connect to a network resource such as the internet via a wireless network access point. Short Range Devices (SRD) are radio devices that offer a low risk of interference with other radio services, usually because their transmitted power, and hence their range, is low. NFC is a modified version of RFID and is more fine-tuned. … Continue reading "Barcodes New StudyIQ Channel - https://www. RFID technology, particularly passive RFID, is a popular choice for asset tracking in supply chains. Enrol to StudyIQ's Flagship UPSC IAS Feb 7, 2017 · WiFi RTLS: WiFi wins the accuracy battle with active RFID as it uses time-of-flight (TOF) measurements with a wider bandwidth. Mar 18, 2020 · 1. Understanding NFC vs. Now that the basics are clear, let’s move to the detailed comparison of NFC vs. Bluetooth: Short-range wireless technology for connecting devices, commonly used for data transfer between devices like smartphones, headphones, and speakers. Frequency: It operates on the 2. Jun 7, 2024 · An Overview of Modern Wireless Communication Technologies. 4 GHz to 5 GHz. Asset tracking is an integral part of any access control system. Wi-Fi Direct: Allows devices to connect to each other directly without the need for a traditional Wi-Fi network. A tag can be read from up to several feet away and does not need to be within direct line-of-sight of the reader to be tracked. 11a (Wi-Fi 2) – Introduced in 1999 as a successor to 802. There are two different RFID tags possible. gov. There is a correlation between bandwidth and indoor accuracy—so if you’re doing 80 GHz of 5-GHz WiFi, you can get accurate location positioning within a few meters. Apr 4, 2022 · This makes it difficult for attackers to record the communication between the devices compared to other wireless technologie s which have a working distance of several metres. RFID is a wireless technology mainly used to transfer data. RFID tags can also be used in authentication systems, such as passports or ID cards. 4GHz and 5GHz frequency bands. Radio-Frequency Identification (RFID) is the use of radio waves to read and capture information stored on a tag attached to an object. Candidates can download their e-admit cards for the Prelims scheduled to be conducted on 25th May, 2025 from the official UPSC website @upsc. Wi-Fi can operate at 2. It allows for contactless data transfer between an RFID tag and a reader without the need for a direct line of sight or physical contact. Technology keeps evolving and businesses need to reinvent themselves to survive in the fast-paced world. The definition ‘Short Range Device’ may be applied to many different types of wireless equipment, including various forms of: Access… Continue reading Consider the following Jan 18, 2024 · UPSC Civil Services Examination, Previous Year Question (PYQ) Prelims: 1. The RFID tags comes in two main types: these are passive and battery-operated. Both technologies have specific use cases, and security risks. Jan 18, 2020 · Hey Guys, this is a short little one that explains the basic difference between these two types of technology and I also show how you can use NFC with your S Jul 30, 2018 · NOTE. The reader gives off radio waves and gets signals back from the RFID tag, while the tag uses radio waves to communicate its identity and other information. RFID stands for Radio-Frequency Identification. Frictionless and secure passwordless authentication for frontline workers enabling modern cybersecurity and identity and access management for deskless workers and shared devices. It has a range of 20 m. You may use RFID or NFC technology for cashless payment, loyalty, transportation, access control, Business Process Management, workforce management, and e-gov. Both RFID and Bluetooth technologies have distinct advantages when it comes to asset tracking. Sep 23, 2023 · NFC vs RFID: NFC is derived from RFID standards and the working principles are quite similar to RFID. . RFID technology enables the communication between an unpowered tag and a powered reader. Oct 13, 2023 · RFID and NFC are two radio-frequency identification technologies that are often used interchangeably. Apr 29, 2022 · NFC and RFID are very similar, in that both technologies support wireless data transmission. RFID systems consist of a reader with an antenna, and a transponder (tag). – First Wi-Fi standard to use OFDM modulation to support high data rates up to 54 Mbps in a 5 GHz band. People sometimes refer to this as an IC or integrated circuit. RFID Asset Tracking. Data Rate: Wi-Fi can achieve data rates up to 144Mbps or even higher with newer standards. However, there are some key differences between the two Wi-Fi = Wireless Fidelity ; Wi-Fi allows electronic devices to exchange data wirelessly using radio waves. Passive Feb 7, 2017 · RFID and NFC are global wireless or rather contactless communication technologies. 11b. 5 days ago · -> UPSC Prelims Hall Ticket 2025 will be released soon, tentatively in the 1st week of May, 2025. The system has two basic parts: Tags and Readers. Active tags can ping information every few seconds like beacons, or they can get activated when a reader is in the proximity. Nov 22, 2019 · Compare barcode, QR code, RFID, NFC, BLE, and GPS technologies to find the best fit for your needs based on factors like efficiency, cost, and application. May 16, 2022 · RFID is a type of passive wireless technology that allows for tracking or matching of an item or individual. -> The UPSC Interview Date 2024 has been released. A tag can be read from up to several feet away and does not need to be within the direct line-of-sight of the reader to be tracked. This article will discuss the differences between NFC and RFID in the context of the IAS Exam. youtube. 11g (Wi-Fi 3) – Released in 2003, it allows speeds up to 54 Mbps in the 2. Schedule a demo +1-855-823-2600 / +91-9798-500-500 The reader gives off radio waves and gets signals back from the RFID tag, while the tag uses radio waves to communicate its identity and other information. The user of the NFC-enabled device determines by the touch gesture which entity the NFC communication should take place with, making it more difficult for the attacker to Oct 13, 2024 · RFID tags work by using a microchip and an antenna to receive and transmit information. See full list on drishtiias. Exp)Option d is the correct answer. Just as the name suggests, RFID tags that are battery-operated use an onboard battery as their power supply. 8 gigahertz (5 cm) SHF ISM radio bands can be time-shared by multiple networks more vulnerable to attack (called eavesdropping) than wired networks Wi-Fi Protected Access (WPA) is a family Jul 19, 2021 · Radio Frequency Identification (RFID) is a wireless technology used for identifying and tracking items using radio waves. What is RFID? Apr 5, 2022 · Wi-Fi technology uses radio waves for transmission, whereas Li-Fi utilizes light waves. Consider the following communication technologies: (2022) Closed-circuit Television; Radio Frequency Identification; Wireless Local Area Network; Which of the above are considered Short-Range devices/technologies? (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1 Jun 4, 2022 · Types of RFID tags: Active RFID tags; Passive RFID tags; Active RFID tags. Jun 4, 2022 · GS Paper 3: Syllabus: Developments in science and technology. Jan 24, 2025 · 802. It is a wireless tracking method that uses tags and readers to track objects. Dec 11, 2024 · Access Control and Security: RFID-based access control systems are used to grant or restrict access to buildings, rooms, or restricted areas. NFC opposing technologies? Although sometimes referred to as different concepts, RFID and NFC are not opposing technologies. Communication: Wi-Fi enables two-way communication, allowing devices to send and receive data over a network. 56 MHz; UHF: 860-960 MHz). com Wi-Fi. 4 GHz band through OFDM. RFID vs. Components: Sep 16, 2024 · NFC and RFID are the two wireless technology platforms which are mostly used for data transfer, tracking, and identifying objects. W But are RFID vs. One of the practical uses of RFID is the implantation of RFID chips on dogs and other pet animals that can be scanned in case the pet is lost. Bluetooth. What is RFID? Radio Frequency Identification is a wireless tracking system that consists of tags and readers. But RFID works on large band of frequencies (LF: 125 kHz or 134 kHz) HF: 13. Learn more about the Unified Payment Interface (UPI)! Jun 4, 2022 · What is Radio-frequency identification (RFID) Technology? About: It is a technology that uses radio waves to automatically identify various tagged objects. Active tags have a longer read range, around 300 ft, compared to passive tags. Wi-Fi works well for general wireless coverage within the building/ campus/compound, and Li-Fi is ideal for high density wireless data coverage in a confined area or room and is free from interference issues unlike the Wi-Fi. 4 gigahertz (12 cm) UHF and 5. The Low Frequency, High Frequency, and Ultra-High Frequency bands are used by RFID systems. WiFi range of about 20 meters (66 feet) indoors and a greater range outdoors Wi-Fi most commonly uses the 2. com/@UPSCCSEStudyIQ | Subscribe Now for Exclusive Videos and Amazing Content. In this article, we will delve into a detailed comparison of UHF and NFC tags, exploring their advantages and limitations to help you make an informed decision for your specific needs. An RFID system consists of three components: a tag, a reader, and an antenna. Active RFIDs use their own power source, mostly batteries. Context: Baggage tags equipped with radio-frequency identification (RFID) will soon be available at Delhi’s Indira Gandhi International Airport, marking a first of its kind for the country. in. The main purpose is to identify and track automatically a tag attached to an object. Range: Wi-Fi also has a range of up to 100 meters, similar to Bluetooth. 802. inswp rrfmfk nddwmm ujaxodm fbeum hcqqey krey sjt erhsgt eou rjryymf dyjpbw rbcbya mvahi qdbu