22-05-2012, 04:05 PM
Radio-frequency identification RFID
RFID (Radio-Frequency Identification) technology .docx (Size: 1.62 MB / Downloads: 46)
INTRODUCTION
GENERAL INTRODUCTION
RFID (Radio-Frequency Identification) technology has drawn a swirl of attention in the past few years as it helps to identify objects and people in a fast, accurate and inexpensive way. It has been applied into many areas, including passports, transportation payment, product tracing, automotive as well as animal identification etc. Nowadays the applications of RFID are increasing rapidly, including supply chain management, access control to buildings, public transportation, open-air events, airport baggage, and so on. To meet the market requirements, the preferred RFID system must exhibit features like low cost, long operation range and high data rate, requiring a small and low-voltage/low-power integrated circuits.
Today, RFID is used in enterprise supply chain management to improve the efficiency of inventory tracking and management. However, growth and adoption in the enterprise supply chain market is limited because current commercial technology does not link the indoor tracking to the overall end-to-end supply chain visibility. Coupled with fair cost-sharing mechanisms, rational motives and justified returns from RFID technology investments are the key ingredients to achieve long-term and sustainable RFID technology adoption.
DIGITAL DESIGN THROUGH VERILOG
Verilog has come as long way since it started at Gateway Design Automation in 1984 . It is now used extensively in the design of integrated circiuts and digital systems.Verilog has been designed to be intuitive and simple to learn, this is why a programmer may see many similarities between Verilog and other popular languages like pascal and C.Verilog can closely simulate real circuits using built-in primitives, user-defined primitives, timing checks, pin-to-pin delay simulation and the ability to apply external stimulus to designs enabling testing before synthesis.The extention which made Verilog really take off was the Synthesis technology introduced in 1987. This, coupled with Verilog's ability to extensively verify a digital design, enabled quick hardware design.
HISTORY
Object identification became a necessity with the rise of trade and transport. A simple label allowed traders to identify packages without having to individually inspect each package. As the volume and variety of trade goods exploded in the 20th century, logistics and inventory control costs began to mount.Retailers also often affix their own needlessly redundant barcodes on top of existing packaging. These issues limited the performance of optical barcode based auto-ID systems.
One auto-ID system that overcame the flaws of optical barcodes is based on radio frequency identification (RFID). The term “RFID” could be applied to systems in use for more than sixty years. The first radio identification technology was the “Identify Friend or Foe” system used in Allied aircraft during World War II. In early 1940, the British Royal Air Force outfitted airplanes with radio transponders that would respond when interrogated. This allowed pilots and ground crews to distinguish the RAF airplanes from the enemies/foe planes, which proved to be a decisive advantage in the Battle of Britain.
APPLICATIONS
RFID is a versatile technology, capable of being used by businesses and the government. Mandates for supply chains, while raising the profile of RFID in business, have overshadowed how extensively and successfully RFID is used in other contexts. In the early part of the 21st century, RFID is growing. The list of RFID users is a long one:
1.Supply Chains, Including Wholesale and Retail Inventory and Materials Management
2.Item-level Tagging of Consumer Goods on Retail Shelves
3.Toll Payment Systems
4.Smart Cards.
5.Contactless Payment Systems at the Retail Point of Sale (POS)
RFID (Radio-Frequency Identification) technology .docx (Size: 1.62 MB / Downloads: 46)
INTRODUCTION
GENERAL INTRODUCTION
RFID (Radio-Frequency Identification) technology has drawn a swirl of attention in the past few years as it helps to identify objects and people in a fast, accurate and inexpensive way. It has been applied into many areas, including passports, transportation payment, product tracing, automotive as well as animal identification etc. Nowadays the applications of RFID are increasing rapidly, including supply chain management, access control to buildings, public transportation, open-air events, airport baggage, and so on. To meet the market requirements, the preferred RFID system must exhibit features like low cost, long operation range and high data rate, requiring a small and low-voltage/low-power integrated circuits.
Today, RFID is used in enterprise supply chain management to improve the efficiency of inventory tracking and management. However, growth and adoption in the enterprise supply chain market is limited because current commercial technology does not link the indoor tracking to the overall end-to-end supply chain visibility. Coupled with fair cost-sharing mechanisms, rational motives and justified returns from RFID technology investments are the key ingredients to achieve long-term and sustainable RFID technology adoption.
DIGITAL DESIGN THROUGH VERILOG
Verilog has come as long way since it started at Gateway Design Automation in 1984 . It is now used extensively in the design of integrated circiuts and digital systems.Verilog has been designed to be intuitive and simple to learn, this is why a programmer may see many similarities between Verilog and other popular languages like pascal and C.Verilog can closely simulate real circuits using built-in primitives, user-defined primitives, timing checks, pin-to-pin delay simulation and the ability to apply external stimulus to designs enabling testing before synthesis.The extention which made Verilog really take off was the Synthesis technology introduced in 1987. This, coupled with Verilog's ability to extensively verify a digital design, enabled quick hardware design.
HISTORY
Object identification became a necessity with the rise of trade and transport. A simple label allowed traders to identify packages without having to individually inspect each package. As the volume and variety of trade goods exploded in the 20th century, logistics and inventory control costs began to mount.Retailers also often affix their own needlessly redundant barcodes on top of existing packaging. These issues limited the performance of optical barcode based auto-ID systems.
One auto-ID system that overcame the flaws of optical barcodes is based on radio frequency identification (RFID). The term “RFID” could be applied to systems in use for more than sixty years. The first radio identification technology was the “Identify Friend or Foe” system used in Allied aircraft during World War II. In early 1940, the British Royal Air Force outfitted airplanes with radio transponders that would respond when interrogated. This allowed pilots and ground crews to distinguish the RAF airplanes from the enemies/foe planes, which proved to be a decisive advantage in the Battle of Britain.
APPLICATIONS
RFID is a versatile technology, capable of being used by businesses and the government. Mandates for supply chains, while raising the profile of RFID in business, have overshadowed how extensively and successfully RFID is used in other contexts. In the early part of the 21st century, RFID is growing. The list of RFID users is a long one:
1.Supply Chains, Including Wholesale and Retail Inventory and Materials Management
2.Item-level Tagging of Consumer Goods on Retail Shelves
3.Toll Payment Systems
4.Smart Cards.
5.Contactless Payment Systems at the Retail Point of Sale (POS)