91.821

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91.821, also known as “Automatic Radio Frequency Identification (RFID) Technology”, is increasingly finding application in many fields. An RFID system is composed of an RFID tag, an RFID reader, RFID antennas, and an RFID programmable computer. RFID technology has several advantages over other identification technologies, including the ability to quickly and easily identify objects, and its durability and affordability. RFID systems are used in various industries, including access control, asset tracking, supply chain management, retailing, healthcare, and automated data capture.

RFID tags are small devices that contain unique identifying information and are attached to objects, individuals, or animals. They are typically about the size of a credit card and are made of materials such as paper, plastic, or metal. RFID tags contain a microchip that stores the unique identifying information. A RFID reader is used to read the information stored in the RFID tags. The reader can be handheld or fixed, depending on the application.

RFID antennas are used to transmit signals from the RFID tags to the RFID reader. They are usually mounted on a wall or ceiling and have an omnidirectional or directional radiating pattern. RFID systems also require an RFID programmable computer that is responsible for processing the data.

RFID technology has many potential applications, and is increasingly being used in a variety of industries. In access control, RFID systems are used to control access to buildings, limited areas, and networks. RFID tags are also used to track assets, such as equipment, tools, and software. In supply chain management, RFID systems are used to track the flow of goods from suppliers to customers. RFID tags are also used in retailing to track the movement of items from the store to the checkout.

In healthcare, RFID tags are used to track patients and their medical records. RFID tags can be placed on the patient’s wristband, ID card, or clothing. RFID systems are also used in automated data capture, in which data is automatically captured from RFID tags and transmitted to the RFID reader.

The working principle of an RFID system is relatively simple. The RFID tag contains a microchip that stores the unique identifying information. When an RFID reader transmits a signal, the RFID tag is activated, and the stored information is transmitted back to the RFID reader. The RFID reader then converts the signal into readable data, which can then be processed by the RFID programmable computer.

RFID technology has many advantages over other identification technologies. RFID tags are available in a variety of sizes and shapes, and can be attached to any object, individual, or animal. Furthermore, RFID tags are durable and affordable, and have a long life-span. In addition, RFID systems are more secure than other identification technologies, as RFID tags can be programmed to only respond to specific RFID readers.

In conclusion, RFID technology is being increasingly used in various industries, due to its many advantages over other identification technologies. RFID systems are used in access control, asset tracking, supply chain management, retailing, healthcare, and automated data capture. The working principle of an RFID system is relatively simple, and involves an RFID tag, RFID reader, RFID antennas, and an RFID programmable computer.

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