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Wal-Mart has long advised its customers to keep a close eye on price cuts on its products, and today this world's largest retailer is following price cuts ... on radio frequency identification systems (RFID tags). At the end of last year, she announced the mandatory transition of her stores to the RFID tag system. Since then, the price of RFID tags has halved, which, according to the company's specialists, will lead to a revolution in the world of retail and a complete change in supply chains. The largest Wal-Mart vendors were asked to switch to RFID tags in their packages as early as next January. Suppliers of this largest retailer strive to meet deadlines, creating a real boom in the RFID tag market. According to some analysts, Wal-Mart alone will need a billion RFID tags soon a year, and the demand for these tiny devices will only grow. Other large retailers and some government agencies now require their partners to attach RFID tags to all types of packaging. So, in November last year, the US Department of Defense approved a new identification system at the federal level, requiring its suppliers to install RFID tags on industrial parts and pallets.

RFID technology is able to solve almost all the problems facing warehouses of any class.
RFID in logistics
Effective warehouse management requires the following tasks:
automatic collection of real-time information on the receipt and sale of goods;
exclusion of loss of information through the use of a unified system of accounting and control;
the ability to quickly search for goods;
reduction of time for all logistic operations.

A well-known technology in the field of automatic identification is bar coding. RFID compared with barcoding has the following advantages:
contactless reading and writing;
work out of line of sight;
long reading range;
data overwriting;
large amount of data;
simultaneous reading of a large number of tags;
label durability.