Application of RFID tags, Cards and NFC

Posted by Bob Smith on June 28th, 2022

Each product has a dedicated RFID Tag Manufacturer. As each product has its own logo, it can realize the minimum unit management of commodities, and play a great role in retail links, anti-counterfeiting, anti-theft, and consumer behavior analysis. It is convenient for individuals or doctors to consult. It can also monitor the health status of the human body, and then send the detected data to the communication terminal, which can save costs in medical expenses and make people's life easier. Smart home: in the daily life of the family, the rapid development of the Internet of things enables people to live in a more convenient and comfortable environment. People can use the wireless mechanism to operate the running state of a large number of electrical appliances, and can also realize the functions of quickly locating the location of family members. Therefore, the Internet of things can be used to control and manage family life. Then, enter the pallet stage, that is, fix RFID on the pallet for identification and reading. From the container stage to the arrival tray stage, the quantity of tracked goods has increased significantly, and the demand for RFID tags has also increased significantly.

The application of radio frequency identification (RFID) can fundamentally solve the above problems. Based on radio frequency identification (RFID) technology and according to the actual situation and needs of warehouse management, Hangzhou Dongshi technology has developed an RFID intelligent warehouse management system.

RFID is the abbreviation of radio frequency identification. It is a non-contact automatic identification technology. RFID can be traced back to the Second World War (about 1940). At that time, its main function was to distinguish the enemy from the British aircraft. In recent years, with the development of large-scale integrated circuit, network communication, information security and other technologies, as well as the promotion of Wal Mart, the world's leading retailer, RFID has been rapidly applied to smart grid, transportation, logistics industry, medical health, fine agriculture and animal husbandry, finance and service industry, industry and automatic control, smart home, environment and security detection, public security, national defense, smart city and other industries and fields. RFID is to automatically identify the target object and obtain relevant data through RF signals. It is mainly composed of electronic tag, reader and antenna. Tags are composed of coupling elements (also known as antennas) and chips. Each tag has an electronic code (EPC), and the chip can store specific serial numbers and other information. The reader is the bridge between the tag and the software system. On the one hand, it reads the tag information, and on the other hand, it communicates the reading results with the software system. The antenna exists in the tag and reader and is responsible for data transmission from the tag chip to the reader and then to the software system.

RFID technology is divided into low frequency, high frequency, ultra-high frequency, active, etc. RFID technology has the characteristics of non-contact, fast scanning, high identification efficiency, not easy to be damaged, suitable for harsh environment, convenient operation, fast reading and writing speed, large amount of information storage, one card multi-purpose, anti-collision, good security encryption performance, reusability, tracking and positioning, etc.

Interface with related systems (mes/wcs/sap). The warehouse management system should not be an independent system. Through certain interfaces, relevant data should be able to interact with the existing production management (MES), EPR (SAP), customer system (WCS) and other related systems of the enterprise in a timely manner, so as to meet the actual management needs of the enterprise. The space (non-contact) coupling of RF signal between the electronic tag and the reader is realized through the coupling element; In the coupling channel, energy transmission and data exchange are realized according to the time sequence relationship. The basic working principle of RFID technology is not complicated: after the RFID Card Manufacturer enters the magnetic field, it receives the RF signal sent by the reader, sends the product information (passivetag, passive tag or passive tag) stored in the chip with the energy obtained by the induced current, or actively sends a signal of a certain frequency (activetag, active tag or active tag); After reading and decoding the information, the interpreter will send it to the central information system for relevant data processing. The warehousing management of an enterprise is the management of the warehouse and the materials in the warehouse. It is the planning, organization, control and coordination process for an enterprise to make full use of its warehousing resources and provide efficient warehousing services. As a link between producers and consumers, it plays a vital role in the whole logistics and economic activities.

By using RFID technology, improve the efficiency of warehouse management and provide the accuracy of WMS system data. The main objectives are as follows:

Reduce human operation leakage, improve management level and reduce potential safety hazards;

Real time data acquisition, keeping the consistency of items and records in time;

Reliable and stable data acquisition and accurate data;

The statements are manually sorted and summarized and then completed by computer;

Improve the efficiency of data management, timely register the detailed accounts of various safety tools and instruments, and achieve the consistency of accounts, materials and cards;

The system is flexible and has expansion function;

The system is practical and easy to operate for users with different levels of professional quality.

Quality innovation is not only a source of updated technology, but also can come from the in-depth mining of scenario requirements. Execute the action instructions sent from the application system software; Control the communication process with the tag; Encoding and decoding of baseband signal; Execute anti-collision algorithm; Encrypting and decrypting the data transmitted between the reader and the tag; Carry out identity authentication between the reader and the NFC Tag Manufacturer; Control of keyboard, display device and other external devices. Among them, the most important is the control operation of the reader / writer chip. Reader / writer antenna is a device that receives or radiates RF signal power from the front end in the form of electromagnetic wave. It is an interface device between circuit and space, and is used to realize the conversion of guided wave energy and free space wave energy. However, for most small and medium-sized warehouses, PDAs with complete functions and easy operation are generally preferred. There are obvious differences between the two.