Design Of Electronic Shelf Label Based On 433M Wireless Communication

Electronic Shelf Label system(ESLs)is a typical commercial application of the Internet of Things which is already in hot spot for many years.It can overcome many of the shortcomings of the traditional paper label fundamentally,such as the high error rate,high losing rate,increasing cost and non-real time update caused by manual management.ESLs offer a set of solutions,which almost can be considered as one-time investment but long-term benefit application of Internet of Things.This application can save the management cost and enhance the image of the stores.ESL has been put into practical use in some supermarkets,mainly in western developed countries,Australia,Turkey in Middle East,Japan and Korean in Asia.In China,ESLs market is gradually started up,and some relevant manufactures conduct products trials and generalizations.The key technologies in ESLs are low power consumption,low cost and good visual effect.The paper first introduces the application prospect of ESL briefly,Domestic research done analysis.Secondly,the technical characteristics of wireless communication,electronic paper display principle were analyzed and compared,According to the design requirements of electronic shelf labels to build the design.n this paper,CC430F5137 is designed as a controller,using 433M as wireless communication,while using low-power electronic paper as a display module.Completed the 433M wireless communication circuit,the temperature detection circuit,the electronic paper display circuit design,power control circuit.The paper analyzes and explains the work flow of electronic label software,wireless communication mode and electronic paper display.At last,the functional modules of the label are analyzed and verified,and the test of electronic paper refresh display,wireless communication range and low power consumption are carried out.The test data are analyzed and summarized.