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RFID and its role
RFID and its role
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RADIO FREQUENCY IDENTIFICATION Introduction RFID is a technology which enables detecting and identifying objects using electromagnetic radio waves. This is processed through exchange of information between a reader and a tag being attached to the object that includes the data associated with the object. This can be used to detect and classify vehicles, animals, patients, shipment goods and airline baggage. [1] RFID technology involves two main components, they are transponders which are also known as tags or labels, contain the relevant information about the object and other the interrogators, also known as readers or transceivers, that extract the data from the tags. These tags can be passive or active tags. Passive tags use the energy from the EM radiation of the reader for its processing, where as active tags receive power from an internal battery for its processing and communication with the reader. An integrated electronic circuit is embedded in tags for storage and processing operations and an antenna that transmits and receives the RF signal. [2] Figure : components of RFID Source : http://www.docstoc.com/docs/17328767/Draft-SP800-98 The tags used in RFID are enabled with read-write operations, with a large storage capacity. Data can be modified any number of times. Tag and reader act as two way radio communication in which each antenna carries the modulation and demodulation of RF signals, with operation frequency ranges from low frequency to UHF. As radio waves are used, RFID does not require line of sight for communication and the operating distance between the reader and tag varies according to the frequency range from few centimetres to few meters. [3] [1] http://en.wikipedia.org/wiki/Radio-frequency_identification [2] [3] http://www.docstoc.com/docs/17328767/Draft-SP800-98 History The start of RFID took place in 1915, by the British with a system called IFF, which means Identification Friend or Foe. In 1940, during Second World War, the first installation of IFF transponder was in a German aircraft named FUG. [4] Leon Theremin, in 1945 invented a device which retransmits an incident radio wave and audio information. This passive device which was activated from an external source became the forerunner for RFID technology. [5] The concept of RFID came into existence in 1973 when Mario Cardullo invented a passive transponder which emits information when activated by an interrogating signal and consisted a 16bit memory unit for storage purposes. [6] In 1973, at the Los Alamos National Laboratory, Steven Depp, Alfred Koelle, and Robert Freyman developed the RFID tag system that uses 12bit tags, operating at 915 MHz. [7] After many years of research RFID tags came out with active tags that eliminated the use of external power source.
Esquire Radio & Electronics, the plaintiff, has filed a law suit against Montgomery Ward, seeking damages for a breach of contract.
Radio is device that use technology of using radio waves to transfer information, such as sound, by using the properties of electromagnetic energy waves transmitted through space, such as their phase, amplitude, frequency, or pulse width. If radio waves passing an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be get back into its original form.
The placement of implantable chips into patients for the purpose of accurately identifying patients and properly storing their medical history records has become a subject of a strong debate. Making sure patients are properly identified before a procedure and storing their health history records for future use has been difficult, if not impossible. The idea of being able to retrieve accurate patient’s medical history for a follow up care without relying on patient’s memory is a challenging task for many healthcare organizations. Many ideas and technologies have been introduced over the years to help solve this problem, but unfortunately the problem is still not fully resolved. There are still many errors in the healthcare due in part by improper record keeping and inaccurate patient identification. One idea that has being in discussion to eliminate these problems for good, is the introduction of a chip or radio frequency identification (RFID) technology implanted into human for the purpose storing medical data and accurately identify patients. VeriChip Corporation is currently the maker of this implantable RFID chip. They are the only corporation cleared by the U.S. Food and Drug Administration (FDA) to make this implantable radio frequency transponder system for humans for the purpose of identifying patients and storing their health history information. The chip was first developed for the use of radar systems by Scottish physicist, Sir Robert Alexander Watson-Watt in 1935 just before World War II. (Roberti, 2007). This technology helps identify approaching planes of the enemy from mile away. Today, RFID has several uses. It is used for animal tracking. It is attached to merchandise in stores to prevent theft. It can be instal...
Now since you know about RFID microchipping you don’t have to worry about the sorrow and the aggravation of trying to find your lost equine or other animals that are close to you. You can use the microchips to determine if your animals have any diseases and to determine where they are, so you can rescue them as soon as possible.
The microchip is a tiny transponder the size of a grain of uncooked rice. The chip is a permanent radio-frequency identification (RFID) chip implanted under the dog's skin that can be read by a chip scanner or wand. Implantation is done with an injector that places the chip under the loose skin over the dog's shoulder. This is a quick and easy process that can be done by all veterinarians provided they have the right technology to do so. The chip identification number is stored in a tiny transponder that can be read through the dog's skin by a scanner emitting low-frequency radio waves (Woolf 1). The frequency is picked up by a tiny antenna in the transponder, and the number is retrieved, decoded, and displayed in the scanner readout window. The radio waves use a frequency much lower than AM broadcast stations use, and they must be approved by the Federal Communications Commission before they can be marketed (Woolf 1). The chip, antenna, and capacitor are encased in a tiny glass tube. The tube is composed of soda lime glass, which is known for compatibility with living tissue. The glass is hermetically sealed to keep moisture out.
The invention of the GPS started with Dr. Ivan Getting leaving his position at Raytheon Company, and armed with the knowledge of what was at the time the most advanced navigational technology in the world, they began developing the Global Positioning System. He, Roger L. Easton, and Bradford Parkison began in the 60’s with a constellation of 24 satellites (placed in six orbital planes) orbiting the earth at a very high altitude (about
Every invention ever known to man had pioneers or people who contributed to the creation of the product. Radio had many pioneers that allowed for its creation and their names are Heinrich Hertz, Nikola Tesla, Ernst Alexander, Edwin Armstrong, Guglielmo Marconi, Lee DeForest, Frank Conrad, Reginald Fessenden, and Edward Armstrong. It all started with a German physicist named Heinrich Hertz who in 1884 proved that you could transmit and receive electric waves wirelessly. Hertz thought that the work he had done had no use whatsoever but little did he know that what he done is considered the fundamental building block of radio, and that is the reason why every frequency measurement is named after him (Short). In that same year a Serbian-American inventor named Nikola Tesla came to the U.S and sold patents to his inventions to a man named George Westinghouse. After that Tesla established his own lab which is where he built the tesla coil , an induction coil that is still used in radio today (Short). The next progression of radio focused on more than just the transmission of waves, the new focus was transmission of speech. The first to begin to add speech into the radio mix was Ernst Alexander, a Sweden born inventor who developed the first alternator to make speech transmission possible (Short). This was so new to the s...
Radio-wave technology is one of the most important technologies used by man. It has forever changed the United States and the world, and will continue to do so in the future. Radio has been a communications medium, a recreational device, and many other things to us. When British physicist James Clerk Maxwell published his theory of electromagnetic waves in 1873, he probably never could have envisioned the sorts of things that would come of such a principle. His theory mainly had to do with light waves, but fifteen years later, a German physicist named Heinrich Hertz was able to electrically generate MaxwellÕs ÒraysÓ in his lab. The discovery of these amazing properties, the later invention of a working wireless radio, and the resulting technology have been instrumental to AmericaÕs move into the Information Age. The invention of radio is commonly credited to Guglielmo Marconi, who, starting in 1895, developed the first ÒwirelessÓ radio transmitter and receiver. Working at home with no support from his father, but plenty from his mother, Marconi improved upon the experiments and equipment of Hertz and others working on radio transmission. He created a better radio wave detector or cohere and connected it to an early type of antenna. With the help of his brothers and some of the neighborhood boys he was able to send wireless telegraph messages over short distances. By 1899 he had established a wireless communications link between England and France that had the ability to operate under any weather conditions. He had sent trans-Atlantic messages by late 1901, and later won the Nobel prize for physics in 1909. Radio works in a very complicated way, but hereÕs a more simple explanation than youÕll get from most books: Electromagnetic waves of different wavelengths are produced by the transmitter, and modulations within each wavelength are adjusted to carry ÒencodedÓ information. The receiver, tuned to read the frequency the transmitter is sending on, then takes the encoded information (carried within the wave modulations), and translates it back into the sensory input originally transmitted. Many of the men who pioneered radio had designs for it. Marconi saw it as the best communication system and envisioned instant world-wide communication through the air. David Sarnoff ( later the head of RCA and NBC) had a vision of Òa radio receiver in every homeÓ in 1916, although the real potential of radio wasnÕt realized until after World War I.
The chip has come a long way but where will it go from here? California inventor Mike Biegal first introduced the basic prototype for the microchip used in the biochip transponder in 1979. The chips are tiny, passive electronic devices ranging in size from 12 to 18mm in length and 2.0 to 3.5mm in diameter. All chips are individually inscribed and programmed to store a unique, permanent, 10-15-digit alphanumeric identification code. The GPM is coupled to an antenna and is sealed in an inert glass capsule.
The radio was the first invention to allow mass communication to different parts of the world. It enabled information to be transferred thousands of miles. The development of the radio began in 1893 with Nikolai Tesla’s demonstration of wireless radio communication in St. Louis, Missouri. Nikolai Tesla’s work set the foundation for later scientists who worked to perfect the radio we now use in our daily lives. The man most associated with the invention of the radio is an Italian man named Guglielmo Marconi, who in 1986 was awarded the official patent for the radio by the British Government. The reason Marconi is most know for the invention of the radio is because he was the first to broadcast a transmission, which he did in 1899 and it was a mile long. Thanks to these great inventors and their brilliant minds we can now listen to sports nearly anywhere and everywhere we are in the world, due to the radio.
RFID is a technology that has been developed, updated, and enhanced since the year 1970 (Bonsor). The technology has advanced, making it more efficient, usable, and productive. RFID uses radio waves to transmit information from an RFID tag to an RFID reader. These radio waves are similar to those that are broadcast through wireless networks except are generally shorter range (What is RFID, n.d.).
By the time the 20th century arrived, vacuum tubes were invented that could transmit weak electrical signals which led to the formation of electromagnetic waves that led to the invention of the radio broadcast system (750). These vacuum tubes were discovered to be able to transmit currents through solid material, which led to the creation of transistors in the 1960’s (750).
Radar can be traced back as far as 1832 when British physicist Michael Faraday suggested the existence of an electromagnetic field between certain objects from his scientific observations. Working from these ideas, British physicist James Clerk Maxwell predicted mathematically the existence and behavior of radio waves in 1873. In 1886, physicist Heinrich Hertz from Germany and Elihu Thomson from America confirmed the existence of radio waves with demonstrations showing examples of reflection, refraction, and direction finding of radio waves. By 1904, Christian Hulsmeyer, a German inventor, applied for a patent for a device that used radio waves in a collision-avoidance device for ships.
During the increase in popularity of radio, Arthur Edwin Kennelly said (1926) "through radio I look forward to a United States of the World. Radio is standardizing the peoples of the Earth, English will become the universal language because it is predominantly the language of the ether. The most important aspect of radio is its sociological influence." Kennelly was foreseeing the potential power and impact that radio would soon come to have. By the late twenties, we would see radio become quite the sensation in the household, and this sensation would continue to prosper even through the Great Depression with aid of soap operas and popular programs such as the Lone Ranger. Radio would see a decrease in popularity during the rise of the television. Eventually, radio would find itself a niche in the media market, allowing it to continue to prosper. This would be due to the help of Frequency Modulation radio broadcasting and localization. Radio stations were now able to offer more local content than radio, touching on local news, weather, and advertisements for local businesses all at a higher sound quality. That joined with a symbiotic relationship with the recording industry and the start of formatted radio programs, the two industries were set to last for almost another fifty years (Adams, n.d.).