Since the popularity of electronic payment in society, the bus charging system has entered the era o
At present, more than 25 million supermarkets have applied electronic shelf labels in the world. In
Now, many supermarkets begin to use electronic shelf labels. Compared with the traditional paper lab
As the coming new generation of bus card reader, the popularity of face recognition bus card reader
Since the birth of two-dimensional code electronic payment, the traditional charging mode has gradua