RFID training courses at rfid4u.combr
An RFID system typically consists of:
- Tags
- Tag Readers
- Rfid Middleware
- Application Software
- Edge Servers
An RFID tag is applied to the object that is to be identified. The tag consists of a digital memory chip capable of storing identification information such as price, color, date of purchase, etc. of the product tagged. The tag also has an RFID antenna that receives radio signals from the RFID reader and responds by transmitting stored information in the form of radio signals back to the reader.
RIFD Tags
An RFID tag consists of a microchip, which remains connected to an antenna. The microchip stores data and the antenna enables the tag to communicate with a reader. Most tags are inexpensive, read-only passive tags that can store 32 to 128 bits of information. Some of the most expensive active tags that can be reprogrammed many times can store up to 1 million bits of information. Some antennas are constructed of metal and are etched or stamped from metal, such as copper. Other types of antennas are printed. Advances in technology are allowing printed antennas to achieve the functionality of traditional materials and printed antennas are less expensive. One of the most popular methods of printing antennae is with the use of silver conductive inks printed on plastics substrates or paper.
RFID tags are available in various shapes and sizes. Labels are flat, thin, and flexible tags that can be attached to a number of objects. These are most commonly used in supply chains. Glass bead tags are used in animal tracking. Card is a flat and thin tag embedded in plastic. Button tags are tags enclosed in a rugged housing. Strips are elongated, flat tags that are commonly used in tracking books. Strips can also be used in tracking audio cassettes, video cassettes, CDs, DVDs, and CD-ROMS.
RFID tags can be broadly classified into active and passive. Passive RFID tags do not have an internal source of power supply. The power required by the tag to transmit comes from a small current that is induced in its antenna by the incoming radio frequency signal. On the other hand active RFID tags have an internal source of power supply. RFID tags can also be categorized according to the standard they comply with. Class 0 tags are 64-bit, factory-programmed read-only tags. Class 1 tags are 64- or 96-bit, write-once tags. In practice, commercially available Class 1 tags can be written numerous times. Class 2 tags are rewritable and can be programmed many times. Class 3 tags are battery-assisted semi-passive tags that can be reprogrammed many times. Class 4 tags are active tags having an internal source of power supply. They too can be reprogrammed many times.
RFID Readers
An RFID reader is a device that retrieves information stored in an RFID tag. A reader has an antenna that sends radio waves that are received by a tag. The tag responds by transmitting information in the form of a radio signal that is received by the reader. There are fixed as well as handheld (portable) RFID readers. RFID manufacturers offer readers compliant with Class 0, Class 1, and Gen 2 standards. Gen 2 readers can transmit and receive UHF radio signals.
Edge Servers
Edge server is a computer for running middleware or applications that is close to the edge of the network, where the digital world meets the real world. Edge servers are used in warehouses, distribution centers, and factories.
Middleware
RFID middleware is a tool that manages the flow of data between readers and enterprise applications and is responsible for the quality, and therefore usability, of the information. Most RFID middleware solutions focus on features like reader integration and coordination and basic data filtering capabilities. As the market matures, middleware platforms will need to include a deeper set of capabilities including: reader and device management, data management, application integration, partner integration, process management and application development, packaged RFID content, and architecture scalability and administration. Savant is EPCglobal's proposed standard for RFID middleware. RFID middleware is important in situations where the user needs to interface directly with a disparate set of auto-ID technologies, such as bar code scanners and RFID readers. Since the RFID middleware is positioned directly in contact with the physical hardware, it can also perform a vital data filtering and aggregation function by cutting down on the data volumes. By inspecting the data upon initial capture, and applying some business rules, it can help to turn raw data into actual meaningful information that constitutes real events and transactions.
RFID Training Courses at RFID4U
Implementation of an RFID solution is not a simple task. RFID training provides skills required for proper installation, maintenance, repair, and troubleshooting of various RFID hardware and software. Our various classroom and e-learning RFID courses have been designed to help you master the nitty-gritty’s of the radio frequency identification.
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