Radio Frequency Identification (RFID) is a technology that uses the emission and detection of radio waves in order to identify objects. The objects in question typically have an RFID tag or transponder attached and communicate their identity when in the presence of an RFID reader.
RFID originated in the 1940s, but it was not until the late 1960s before it was widely used. Originally, the technology was used to measure the speed at which large aircraft flew and to reduce air traffic congestion. In the 1970s, RFID began to gain widespread acceptance when it was used to identify and track airplane parts by the Federal Aviation Administration.
The 1980s saw the emergence of low cost, low power RFID systems and numerous applications in areas such as livestock tracking, asset tracking and access control. Other applications included banking systems, health care tags and inventory management. By the early 1990s, RFID was used to control access to secured areas and track inventory in manufacturing and logistic processes.
RFID technology has come a long way since then. Today, RFID tags are used in a variety of applications including passports, security access controls, retail, healthcare and animal tracking. Additionally, RFID is being used to monitor livestock, monitor shipments, manage car parking and monitor people movement in large areas. It is also being used in retail applications such as point of sale systems and cashless vending machines.
RFID tags are becoming increasingly popular due to their small size, durability, low cost and easy implementation. RFID tags come in various sizes, shapes and forms and can operate on a variety of frequencies. The RFID tag itself typically contain a microchip, antenna and transponder. The antenna transmits radio signals when in the presence of an RFID reader, while the transponder stores data such as unique identification number and memory.
RFID readers, which range in size and shape, generate radio signals used to read RFID tags. RFID readers are typically connected to a PC or PC network through wired or wireless connections. They come in handheld, stationary and drive-through versions and can communicate data over long distances depending on their power output and frequency.
As the use of RFID technology is increasing, it is important to note that the technology is still in its infancy. While RFID has a wide range of applications and advantages, it also has its drawbacks. RFID tags require line-of-sight to work and can be easily hacked if not secured properly. Additionally, RFID technology is more expensive than barcodes, which is a limiting factor for some businesses that are on a tight budget.
RFID is an exciting technology with a wide range of potential applications, however, it is important to understand its capabilities and limitations to ensure that it is used effectively. By understanding the capabilities and limitations of RFID, users can make well-informed decisions about how to use the technology most effectively. RFID is a great tool for tracking people, objects, and packages but its effectiveness depends upon its proper use.
