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Radio Frequency Identification

RadioFrequency Identification

  1. Radio Frequency Identification

Whatis RFID &amp How RFID Works: Narrated by Louis Sirico



Adetailed explanation of what is, andhow it works is given. According to the narrator, RFID is atechnology that uses radio waves to identify objects or people.

Thetechnology was first introduced in Airplanes in the 1940s to identifyand differentiate military aircraft. Today, the technology findsapplications in various fields, the common and most important beingthe identification of mobile phones with the aid of the InternationalMobile Equipment Identity (IMEI) number, which can be used toidentify genuine phones and block stolen ones. If used responsibly,RFID can benefit people in different ways and save lives as well.

Asillustrated in the clip, RFID chips can be used to track people. Thedisadvantage is that an unknown person may as well track someone withthe chip, and hence, putting one into risks. There are health risksassociated with Bluetooth devices as well if not properly used.

RFID- Technology VideoURL:https://www.youtube.com/watch?v=4Zj7txoDxbE


Thesupply chain is one of the areas of application of Radio FrequencyIdentification. The presentation is fantastic, in that itincorporates simulations of the various applications. The mostinteresting part is the illustration on how RFID can be used to passproducts information from the manufacturer to the retailers. Theintroduction of RFID technology in the supply chain willsignificantly increase efficiency in many ways, for instance, thecounting of various goods will be automatic and hence time-saving.The information about a product, such as prices and the number ofunits, can automatically be sent to the merchandise managementsystem.

Themain disadvantage is the violation of privacy. There is no preciseinformation on how the issue of privacy will be dealt with if thetechnology is embraced. There is a possibility that the manufacturerwill track the product even after a consumer has bought it, and henceviolating customer privacy.

FutureRFID Store



RFIDtechnology can be used to enhance the process of a store. It hasvarious potential applications and can be used to simplify processesand improve efficiencies. RFID shopping card can be used to identifythe customer and stores information on the previous shopping. Withthe RFID system, there will be no many employees required in a retailstore since it enables automatic checkouts and guides the customer onthe item location.

Asit can be seen from the video, the store has only one cashier, andthe rest are the clients, implying that the application of thistechnology will render several people jobless. Since the systemrelies on radio waves, there is a possibility of failures, and, withthe absence of workers in the store, a customer may be forced toabandon his shopping.

Title:RFID Improves Aerospace Manufacturing



Thevideo shows the incredible power of RFID technology in aerospacemanufacturing facility. The video reveals that the application ofRFID system improves the efficiency of operations in various ways.One is able to track the different components required for a givenmanufacturing process and can tell the availability of the same. WithRFID system, one can get information on customer orders, such as thequantity, delivery date, and place. With such information at hand, itbecomes easy for an operation manager to schedule well to ensurepunctual delivery of goods.

Thedisadvantage of this is that the reliance on radio frequency canhinder operations upon failure. Privacy is also a matter of concernsince the system stores people’s information, which might be usedfor bad reasons, and hence posing security threats. As evident fromthe video, it is hard to get an efficient RFID system, very fewcompanies produce the required devices, which can be a setback to theusers.

  1. Near Field Communication

Top5 NFC Features: Explained! URL:https://www.youtube.com/watch?v=qp5il7yhM4YDuration:6:40

NearField Communication is a technology that is used to transfer databetween two NFC network enabled devices within a short distance,usually 4 cm. As illustrated in the video, NFC has severalapplications and advantages. With an NFC card, one can store severalmobile phone commands so that, at any given time, the preferredsettings can be achieved by simply swiping the phone on NFC card. Onecan store credit card information on a phone and thus, use it forpaying bills in various places such as restaurants and retail stores.

Thedisadvantage of this technology as illustrated in the video is thatthe NFC cards are prone to failures. Sometimes reading theinformation may not be possible, and hence, causing inconveniences tothe user. Storing financial information on the card can be riskybecause someone can easily snatch it and steal pertinent information.

NearField Communication (NFC) Training Series Part 3: NFC Applications URL:https://www.youtube.com/watch?v=7ZXieJJMDtE


Thevideo illustrates in details, the application areas supported by NFC.Among the application areas are, payment system, transport ticketing,digital door lock, information gathering, and product authentication.NFC can be used to set up WiFi connection between two devices as wellas enabling file sharing, which is advantageous. Another advantage isthat NFC smartphone can be used a universal display and entry devicewhich reduces the use of hardware and offers conveniences in terms ofportability.

Themajor risk to NFC is phone or computer hacking. As technologyadvances, hackers are also developing sophisticated means ofspreading malicious applications to phones and computers to enablethem to have access to the stored information in the devices. Creditcard, bill payments, and social security information of the phoneowners will be at risk.

NFC- Google Wallet and More – EE Times – Mobile World Congress


Duration: 6:28

Mobilepayment is one of the applications of NFC technology. It allowspeople to receive and send money from a Smartphone at no costs. Thetechnology is made possible by installing an application to aSmartphone and the creation of a Google wallet account which islinked to an individual’s debit card. With this account, there isno need for one to carry the debit card for shopping. The NFCtechnology has made it possible for one to use the phone in place ofa debit card to do billing transactions.

Oneof the challenges is security. Most customers are not sure whether itis safe to link a bank account to the NFC Google Wallet. It is,therefore, hard to convince someone to use the application due tofear of risking personal financial information. The use of theNFC-Google Wallet is limited to Android phones it, therefore, lacksflexibility.

NearField Communication – NFC for Beginners



NFCtechnology can be viewed as a milestone in technology and itsapplication in mobile phones is not well known to many. Anillustration is given on how the technology works and how to thedevices can be configured. One of the pros, as explained, is that itis user-friendly and easy to use. When configuring a device with NFCsystem, a tag is used to store the required data which can be usedelsewhere. This implies that an individual does not have to gothrough the mobile phone settings one by one instead, the NFC tag isbrought near the Smartphone and, voila, the settings are installed.

Oneof the problems is that the tag may not be secure. A mobile phonewhich is NFC enabled can be vulnerable tomalwareprograms. Information can easily be lost or accessed by a thirdparty, which is a serious breach of privacy.

  1. Low Frequency

TeenInvents Low-Frequency Radio for Underground Comm…



Low-frequencyradio waves have frequencies ranging from 30 KHz to 300KHz.Due to their low signal attenuation, they are suitable forlong-distance communications. This property was the main idea behindthe invention the low-frequency radio for the purpose of undergroundcommunication. The radio allows sending text messages while deepunderground, making it suitable for mining emergency rescueoperations and researchers as well.

Theshortcoming of this is that it is prone to failure as it relies onwaves, which sometimes may not be available in particular areas.Transmission of a lot of data simultaneously limited, and also, aprolonged exposure on radio waves poses health risks.

VLFTransmitter Cutler



Thelow-frequency radio waves are mostly applied in the undergroundcommunication. In the military, the Navy uses low-frequency radios topass information to the ground and vice versa. In the US Navy, a VLCtransmitter shoe radio station is situated in Cutler, Maine. Thisstation enables a one-way communication between submarines on thesurface and submerged.

Thepitfall of this is that the radio waves can be intercepted byhackers. If such happens, the enemies are able to identifyinformation about the location and military strategy, and a surpriseattack can occur apart from intercepting confidential information.

Low-Frequency Airborne Radar Surveillance – Swedish Knowledge andExperience[Aero India 2013]



Low-frequencytechnology has been incorporated in radar surveillance in the marineindustry, which is used to locate vessels and control traffic. Theradars are also used to provide information on the enemy movementsand their exact location. It is also applied in aircraft. Whenproperly applied, the technology has a significant impact onintelligence gathering, command, control and resource allocationfunctions.

Therehave been cases of a security breach in surveillance systems. Withthe advancement in technology, experts can intercept informationpassed the radio waves. In some instances, a marine vessel or anaircraft can be redirected to a different location by enemies.

GroundSurveillance Radar AN/TPS-25 Moving Target Detection pt2-2 1961 USArmy Training Film



Insurveillance, low-frequency radars can also be used on the ground todetect the position of a moving object. In the military, this helpsin locating an enemy who is on the move. The sound produced by anindividual walking sends signals to the radar system, which, by theuse of radio waves, identifies the exact target location.

Theaccuracy of this system is questionable. Sometimes it may send falseand misleading information. Another challenge is the issue of highclutter area operations. Apart from the target, the radar can get areflection from other moving objects.

  1. High Frequency

Ham Radio Tutorial – HF Radio Wave Propagation



Radiowave propagation is the way in which waves travel. The HF wavelengthranges between 3 and 30 MHZ. The propagation of HF from the sunpasses through four layers, F1, F2, E, and D. The F1 layer is the oneresponsible for HF communication. The presentation is detailed andprovides a deep understanding on how high-frequency electromagneticwaves are transferred.

Thedisadvantage is that it does not describe any application of thetechnology. Giving examples of how it is applied would have beenbetter since it`s the only way to understand a concept. Simulationsof the waves could have made the illustration even better.

Title:TRRS#0168 – Grundig Satellit 750 Shortwave Radio Review



HFis also known as a shortwave band. It has applications in differentareas such as in the aircraft traffic control, domestic andinternational broadcasting, and utility stations, among others. Itsextensive use has led to the invention of various receivers, one ofthem being the Grundig Satellit 750. This device enables one to havefull coverage of long and medium waves, and shortwave frequencies aswell as the FM. The shortwave coverage helps in monitoring ham radiooperators, maritime and HF aeronautical stations.

Theproblem with this device is that, since it incorporates variousfrequencies, the sound sometimes is not audible. When used in trafficcontrol, it is sometimes a big problem to receive signals clearlysince the HF has short distance coverage.

HF-DSC- Digital Selective Calling, Basic Explanation



Digitalselective calling uses the concept of high-frequency wavetransmission. It is used in maritime as a means of communication tosend messages over a long range. Commonly used in maritime, thedevice allows an individual to get real-time weather information.When a message is received, the signal identifies the ship`sposition, MMSI number, and the coordinates.

Thereare potential interfacing issues associated with this technologywhich hinders smooth communication. Many test calls on the HF-DSCsafety frequencies can overload the system and thus, interfere withthe distress and safety calls.

Militaryradio RT-1511/GRC 215 man pack and vehicular HF SSB transceiver



HFtransceivers are used in the military for communication in remoteareas. Their capabilities to send signals over a relatively longrange make them suitable for the application. With a military radio,soldiers can communicate with each other even in mountainous areas.The device can be mounted on a vehicle, which further simplifiespatrol.

Transmissionof HF signals can sometimes be havoc in some places, especially indeep caves. When a soldier is trapped underground, sendinginformation to colleagues may be impossible. The other challenge isthat there is a possibility of someone to hack into the system andcompletely cut down the communication.

ShortEssay on the preferred Video: Future RFID Store

Themost interesting video clip is the FutureRFID Store. Thetype of technology involved is the (RFID) which can be described as a wireless system that consists oftwo components, namely tags and readers (Ajamiand Ahmad 1).The reader has an antenna used to emit radio waves and then gets backinformation from the RFID tag (Ajami and Ahmad 1). RFID hasapplications in various areas, including ticketing, billing,tracking, safety systems, in store management, among others. In thistechnology, the communication within a system takes placeautomatically.

Withregard to the favorite clip, RFID is used for managing a retailstore. With the use of animation and simulation, it shows how wellthe radio frequency identification can improve efficiency and raiserevenue. A similar technology that currently exists is the use ofbarcodes. They have been in use over the years but, it is evidentthat a gap exists regarding convenience and efficiency. Unlikebarcodes, RFID does not require any visual contact for it to read.Barcodes require that a scanner directly places it next to everysingle label and the orientation must be in a particular position forproper functioning. With the new technology, physical or directcontact is not must the reader can be placed as far as 2 meterssince it utilizes radio waves for communication (Egloff 1).

Theexisting technology identifies the type of product in general, whilethe electronic labels can detect the individual product (Egloff 1).This implies that when two milk packets of the same capacity and froma common manufacturer will have the similar identification. However,with the electronic tags, each can be determined and managedseparately, and therefore, it becomes easier to control inventory.

RFIDtechnology has the capability to read multiple labels simultaneously.As illustrated in the clip, a pallet of goods can be passed through areader and all the product information is sent automatically to themerchandising management system. In the contrary, barcodes have to beread in a sequence. This characteristic makes radio-frequencyidentification more suitable as it reduces waiting time in retailstores queues.

Interms of durability, RFID tags are better than barcodes. They areusually produced with protective covers which can withstandrelatively higher temperature and humidity. Barcodes, on the otherhand, are made up of papers without any protected surfaces, and,therefore, can easily be damaged. Radio frequency identification tagscan also be updated and therefore can be reused, which cuts cost(Egloff 1)

RFIDtechnology helps in inventory management. With several overheadreaders installed, real-time information can be obtained throughoutthe store as well as the supply chain. As earlier stated, no human isnecessarily required which reduces errors and eliminates the need formore employees which translates to more revenues. The totalautomation saves a lot of time and money.

Despitemany benefits associated with the technology, there are some criticalconcerns that have not been addressed by the manufacturer. The majorissue is a violation of privacy. Little has been said about thismatter and it is said that the contents of RFID tag can be accessedeven after the goods leave the supply chain. Considering the factthat radio frequency waves are sensitive and can be detected from adistance, one can easily read all the card information, which maycontain confidential information such as bank accounts, name, andaddress.

RFIDtags do not necessarily need to be swiped or scanned, like the casewith barcodes or magnetic strips. This implies that anybody who has areader can access your card information in your wallet or whicheverplace, without your knowledge. People with bad intentions may do aterrible act, which endangers the safety of an individual.

Everytechnology comes with its shortcomings. To decide whether toimplement RFID application, a thorough research should be done tovalidate if the benefits outdo the disadvantages. From thediscussion, it can be concluded, when properly utilized, radiofrequency identification technology will improve efficiency invarious applications, as well as save lives of people when used intracking systems.


Ajami,Sima, and Ahmad Rajabzadeh. &quot(RFID) technology and patient safety.&quot Journalof research in medical sciences: the official journal of IsfahanUniversity of Medical Sciences18.9 (2013): 809.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3872592/.Accessed on 14 November 2016

Egloff,Sally. “An Emergency Technology: .(n.d.)

http://terpconnect.umd.edu/~segloff/RFIDTest3/AdvantagesandDisadvantages.htmlAccessed on 14 November 2016.