The Design Of Electronic Shelf Label System Based On NFC

Paper goods price tag has been widely used in merchandise sales.In a wide variety of goods in the store,because of the goods changed frequently,the paper label on long-term artificial manipulation of the operation and management mode is not only inefficient,but also accompanied by the expansion of supermarket goods increasing in types of unordered risk management.In view of the current supermarket price tags updating maintenance work multifarious and the characteristics of high reliability requirements as well as the factors such as the store daily operation,this paper designed a wireless electronic price label system based on NFC technology to replace the traditional paper price tag.NFC(Near Field Communication)technology,with low power consumption,high reliability,which is good at meeting the requirements of wireless Communication system based on electronic price tag.Firstly,This article carried out in accordance with the actual application of the functional requirements to the tag system function analysis.Secondly,in contrast all kinds of short distance wireless communication technology,This article analyzed the principle and characteristic of NFC technology.Finally,designed a low power consumption based on NFC electronic shelf label system.Through comparing parameter,STM32F103VET6 is chosen as the system control chip,FPGA is chosen as baseband signal processing,the OED electronic paper display module as a tag and AFE(Analog Front End)to constitute the whole tag communication system.Through a review of system certification,software-hardware design and performance test,the paper get the conclusion of feasibility.The system energy consumption analyzed from multiple aspects and the results displayed that the electronic shelf label and basic communication instruction is work.By reducing the communication process,using electronic paper display screen,choose low working frequency and low operating voltage.The system reduced the power consumption effectively.