The Design Of Large Capacity Electronic Shelf Label System Based On Improved Mesh Network

No matter in class KA hypermarkets or class C scale supermarkets,the price tags of commodity has a large number of application requirements.You can update the prices of goods,shelf life,bar code,clear discount information and so on,which brings a great convenient for the need of customer’s shopping.Traditional commodity price tags are made of paper,which is cheap but have a lot of drawbacks in the running of the maintenance,especially for the large supermarket.A lot of manpower is needed because there are so many sort of commodities and the updated demand is frequent,so it is easy to make mistake.One may leakage of mark,on the one hand may damage the interests of the company,the company image and also affect the customer’s shopping experience.In response to these paper price tag is present drawbacks,this paper aims to design a mesh-based network of high capacity electronic price tag system,which not only has the price tag is automatically updated in real time information,and a number of nodes,and build ad hoc network down net repair capacity is very good,fully meet the requirements of the mall for electronic shelf label system.Advantages and disadvantages of short-range wireless communications technology was analysised in this paper.ZigBee technology was selected as the main technical to set up a wireless network,through the market mainstream chip parameters compare selected CC2530f256 as the main chip,the selected IAR Embedded Workbench 8.1.0 corresponding protocol stack Z-stack 2.5.1 for supporting the use of.Furthermore the software and hardware design analysis,the overall structure of the article,put forward the improved method of routing protocols for the network parameters RSSI,LQI parameters such as performance testing and verification.Finally,work summary and shortcomings,prospects of future development the direction of the target.