ELECTRONIC SHELF TAG AND ELECTRONIC SHELF TAG SYSTEM

摘要

To provide a technique of enabling the low power consumption of an electronic shelf tag. In order to achieve this purpose, in the electronic shelf tags which are arranged corresponding to articles and display the article data on the corresponding articles, a sleep operation for suspending a predetermined function for a predetermined period of time is repeatedly performed at intervals and the predetermined period of time is prolonged if no data is received for a given length of time.