Electronic tag device, electronic shelf labeling system, and display refresh method of electronic tag device

摘要

There are provided an electronic tag device, an electronic shelf labeling system, and a display refresh method of an electronic tag device. The electronic tag device includes: a wireless communications unit performing wireless communications according to a preset communications protocol; a control unit controlling communications with a plurality of gateways and a server through the wireless communications unit and controlling an output of data included in a received signal to a display; a memory unit storing the data therein according to the controlling of the control unit; a display unit outputting the data to the display according to the controlling of the control unit; and a power supply unit supplying operating power according to the controlling of the control unit, wherein the control unit refreshes the display unit when a preset display refresh condition is satisfied.