With the development of the economy and the improvement of living standards, people’s demand for fresh food has increased, and people have paid more attention to the quality and safety of food. The increase in demand has promoted the development of the cold chain logistics industry, and the requirements for quality and safety have promoted the development and application of new technologies. As an automatic identification and data acquisition technology, RFID technology can track the cold chain process and monitor temperature changes when it is integrated with a temperature sensor. The automatic acquisition of data simplifies the logistics operation process…

In actual design, the real practical trick is how to trade off these guidelines and laws when they cannot be accurately implemented due to various design constraints. Of course, there are many important RF design topics worth discussing, including impedance and impedance matching, insulating layer materials and laminates, wavelength and standing waves, etc. Careful planning under the premise of a comprehensive grasp of various design principles is the guarantee of a successful design the first time . 1. Common problems in RF circuit design 1. Interference between digital circuit modules and analog circuit modules If the analog circuit (RF) and…

In recent years, due to the continuous deepening of people’s understanding of RFID technology and the continuous reduction of application costs, RFID has continued to accelerate its penetration in various industries. In the clothing industry, Uniqlo, Decathlon, H&M, Heilan House and other big-name shoe and apparel manufacturers have applied RFID on a large scale to improve the efficiency of the supply chain; libraries all over the country choose to use RFID solutions to manage massive books, and Various forms of products such as librarian workstations, self-service book return boxes (machines), mobile inventory vehicles, sorting machines, etc.; airlines use RFID technology…

Aiming at the problems that the existing car access control system and tire pressure monitoring system are independent of each other, hardware redundancy and high production cost, a design scheme of car security anti-theft system based on radio frequency identification technology is proposed. In terms of radio frequency communication, the system uses the combination of 434 MHz UHF frequency band and 125 kHz LF frequency band to realize the functions of system tire pressure monitoring, remote control door lock and engine anti-theft lock. Automobile security and anti-theft system based on RFID technology Radio Frequency Identification (RFID) is a non-contact automatic…