Advantages And Disadvantages Of Rfid

In its basic form, a typical RFID system has two major components, a reader and tags, as shown in Figure 3.1. These tags are made from a tiny chip, also called an integrated circuit (IC), that is connected to an antenna that can be built into many different kinds of tags including apparel hang tags, labels, and security tags, as well as a wide variety of industrial asset tags. The tag chip contains the product's electronic product code (EPC) and other variable information so that it can be read and tracked by RFID readers anywhere(Impinj 2015).

The RFID system mainly includes three parts: reader, antenna, and RFID tag, as shown. Because of the uniqueness of the RFID tag, the reader can locate and

Regardless of the frequency, method of communication, or the power supply, the goal of any RFID system is to enable specific data to be transmitted between a portable device and the tag, and then be processed and used accordingly. RFID systems are used for objects which get lost, stolen often, underutilized, or difficult to locate in a timely manner.

Today, RFID is used in retail, manufacturing, healthcare, agriculture, travel, entertainment, etc. RFID increases efficiency of operations, decreases reliance on manual process, improves asset visibility and traceability, reduces operation costs, and provides useful data for business analytics. There are many different reasons why companies and firms are beginning to make the switch to RFID, some examples are: automating inventory and asset-tracking in healthcare, manufacturing, retail, and business sectors; identifying the source of products, enabling intelligent recall of defective or dangerous items; prevent use of counterfeit products in the supply chain; improve shopping experience for consumers; provide visibility into the supply chain

In a typical RFID system, individual objects are equipped with a small, inexpensive tag which contains a transponder with a digital memory chip that is given a unique electronic product code. The interrogator, an antenna packaged with a transceiver and decoder, emits a signal activating the RFID tag so it can read and write data to it. When an RFID tag passes through the electromagnetic zone, it

RFID is short for Radio Frequency IDentification. The solution is comprised of RFID tags and a device that can read

Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. The tags have stored electronical information. Generally speaking, there are two types of RFID tags, passive tag and active tag. Passive tags collect energy from a nearby RFID reader 's radio waves. Active tags have a local power pack unit such as a battery and may operate at hundreds of meters away from the RFID reader. RFID technology was first used during in 1940s, in World War II RFID was used to identify aero planes. The goal was to use the aero plane 's radar signal to read an ID number in order to confirm whether they were allies or enemies. As time goes by, RFID technologies are now widely used in almost all industrial sectors, for example aerospace, automotive, logistics, transport, health, life, etc. In our following report, we will discuss the technologies used in RFID, differences between Barcoding and RFID, current bottlenecks of RFID development, and visions of RFID usage in the future.

A passive RFID tag, more commonly used, is one that is not connected to a power source. These tags rely on the electromagnetic field that is generated by specific RFID tag readers to create enough electrical charge to transmit the stored data in radio waves (Venkateswara, 2011).

The necessary communication between tags and readers occurs by the radio frequency communication. This communication gives the RFID powerful capabilities, but it also leaves the door open to several key threats like unauthorized access to tags and side channel attacks.

Radio Frequency Identification, commonly known as RFID, is a data collection technology that utilizes electronic tags to store data. The tag has many different names such as electronic label, transponder, or code plate. The RIFD chip is attached to an antenna transmitted in kilohertz, megahertz, and gigahertz range. These RIFD tags are similar to barcodes and are used to track items (RFID, n.d.).

In 1960s, RFID began to advance which led companies to use the technology for anti-theft purposes. Electronic article surveillance tags uses radio waves to find out whether a customer had paid for the item. When someone tries to walk out with an item that wasn’t paid for, it gets detected by the reader at the door resulting an alarm. In 1973, the first US patent was issued for an active RFID tag. A RFID tag is saved with a unique numbers which gets broadcasted by a card with the transponder. Therefore, the door would unlock when the reader detects the unique number from the RFID tag. This technology was licensed to different companies, mainly door lock makers. The US government started using RFID to track nuclear materials in the 1970s. The department of Agriculture expands the passive RFID technology to mark cows. The cows were fed with various kinds of medicines and hormones and it is so hard to track how many doses each cow received. A passive RFID solved the problem of cows not getting overdosed through the use UHF radio waves. After, smaller transponders were created that could be injected under a cow’s skin. They still use this technology in cows now days. These low frequency transponder is also used in readers for building access. Later, the commercializing of high frequency enabled companies to have faster data transfer and more range. “Today, 13.56 MHz RFID systems are used for access control, payment systems (Mobile Speedpass) and

Radio Frequency Identification (RFID) uses Radio Frequency electromagnetic energy that can be transmitted and can be used to read the

RFID technology is not only used at gas stations, restaurants, and department but also at

RFID tags are attached to different items to whom it is designated to as the data present in is given at the time of manufacturing. It has as space 96 bits where data can be stored and that information is just a small bit of code which can only understood by the reader. As the distance between the tag and reader increasers as the size of the tag and antenna in it also keeps on increasing. There are two types of RFID tags which are

Some of the disadvantages of the RFID technology are that it is expensive to install. Small and medium scale enterprises find it costly to use it in their firms and offices. In the case of Harley Davidson, getting products from many different suppliers’ would mean that the tags may have to be installed in liquid and metal products. The problem is that the liquid and metal surfaces tend to reflect the radio waves, which makes the tags unreadable. The tags have to be placed in various alignments and angles for taking proper reading. This is a tedious task when the work involves a large organization like Harley Davidson. Another disadvantage of the technology is that interference has been observed if devices such as forklifts and walkie-talkies are in the vicinity of the distribution centers. The presence of mobile phone towers has been found to interfere with RFID radio waves. Wal-Mart, the retail sector giant, has installed billions of RFID tags in their products throughout the world and they have encountered such problems.