RFID technology is revolutionizing many sectors: from logistics to healthcare. It uses radio waves to communicate. This allows for the identification and tracking of objects in a non-contact manner and without the need for manual data entry. Its basic element is RFID tags. What do you need to know about them? Check it out!
RFID tags are the basic elements of radio remote identification systems. They consist of a microchip and an antenna. They are used to store and transmit data using radio waves. This is an innovative non-contact technology that allows reading information from a distance of up to several hundred meters.
Wondering what exactly is inside an RFID tag? How is this tiny device able to store and transmit information without any power source?
The RFID tag, although seemingly simple from the outside, hides advanced technology. It consists of:
The information on the RFID tag is stored in the chip’s memory. These may be unique identifiers, product data, shipment histories, or even information about the technical condition of the scanned object.
When the tag comes within range of the reader, radio waves emitted by the scanning device activate the tag, which enables signals to be received and processed.
Reading data from an RFID tag is done without the need for a direct line of sight between the tag and the reader, which is one of the main advantages of this technology. The reader sends a command that is received by the tag’s antenna, and the chip immediately processes this request and sends data back to the reader. This process takes place in a fraction of a second, which improves and speeds up reading information from many tags at once.
RFID tags differ in parameters depending on the type, purpose and operating conditions of these elements. You need to know their technical specifications to choose the right tags for your needs and ensure optimal performance of the RFID system.
| Frequency | Frequency Height | Characteristics |
| Low (LF, Lov Frequency) | 125–134 kHz | are characterized by a short range (up to a few centimeters) and less susceptibility to interference related to the presence of metals and liquids |
| High (HF, High Frequency) | 13.56 MHz | offers medium range (up to one meter) and is often used for ticketing, security labeling, and inventory management |
| Ultra High (UHF, Ultra-High Frequency) | 433 MHz; 860–960 MHz; 2.45 GHz | can reach a range of several meters |
The division according to the operating frequency of RFID tags allows for effective adjustment of the technology to specific needs.
UHF tags are particularly valued in logistics and inventory management for their ability to quickly read multiple tags simultaneously from long distances.
LF and HF tags are used where objects are scanned at shorter distances and in places less susceptible to interference, such as in access control or payment systems.
RFID tags also come in a variety of forms, including:
Depending on the type and purpose, RFID tags can contain from a few bits to several kilobits of memory. This can be used to store serial numbers, product information, product movement history, etc.
RFID tags are designed with a variety of operating conditions in mind, including resistance to water, temperature, chemicals and impact.
Tag durability is a key parameter in industrial applications where conditions can be extreme.
The range is closely related to the type of tag, operating frequency, and the power and configuration of the reader. It can range from a few centimeters to several dozen or several hundred meters.
The price of RFID tags is influenced by many factors, including:
The cheapest simple RFID tags cost an average of 50 cents. In turn, the price for specialized models reaches several dozen or several hundred zlotys.
Please note that these amounts are approximate and may vary depending on many factors, including manufacturer, quality, specific RFID tag features and current market conditions.
RFID tags are used in various industries and aspects of everyday life. How is radio technology changing business and routine activities?
Tags enable automatic inventory management, which significantly improves inventory processes and reduces the risk of stock shortages. The ability to quickly scan multiple products at once without the need for direct visibility of each of them significantly speeds up work and increases the efficiency of customer service.
Tags are used in access control systems, both in public and private places. Bracelets, cards or key rings equipped with RFID tags enable contactless identity verification and authorization of access to specific areas, which increases user safety and comfort.
Radio technology enables effective monitoring of the location and condition of company assets. The ability to quickly locate a specific device, tool or vehicle in a large area, as well as monitor their use and maintenance, significantly improves operational efficiency and helps prevent losses.
RFID tags are revolutionizing the way we manage our supply chain. They enable automatic tracking of shipments and containers at every stage of transport, from the warehouse to the final destination. This allows us to optimize logistics processes, reduce delivery times and minimize the risk of errors or lost goods.
RFID tags are used here to monitor the location of medical equipment, manage medication supplies, and ensure that patients are receiving the correct treatment. The tags can be used to track patient treatment histories, ensuring better care coordination and reducing the risk of medical errors.
The markers are used, among other things, in electronic tickets, which allow quick access to various facilities, and on runners’ starting numbers to precisely measure the time of their activity and monitor their progress on the route.
Schools and universities use RFID tags to manage library resources and manage access to various educational facilities. This technology also helps to automate the lending and returning of books and teaching equipment.
Museums and art galleries use RFID tags to protect and track artwork. The technology also enables interactive tours where visitors can receive information about exhibits directly to their mobile devices.
Here, tags are used to identify and monitor animals, allowing for better control over the health of herds, their location and breeding history. They also enable automation of processes such as feeding or controlling access to specific areas on the farm.
