采用相对时间的无线电子货架标签休眠方法

针对基于物联网的无线电子货架标签系统，提出一种采用相对时间的电子货架标签的休眠方法。描述了基于相对时间控制的电子货架标签设备模型、系统工作流程、时分队列算法及相对时间休眠算法。实验表明，使用相对时间可以有效管理大量异步电子货架标签协同工作，并准确、简单地控制各个标签的运行状态，统一地通过服务器指挥标签的休眠、唤醒及与上位机通信的时间，有效降低电子货架标签的耗电量。

Sleep Method of Wireless Electronic Shelf Labels Using Relative Time

It proposes a sleep method of the wireless electronic shelf label system using relative time , based on the Internet of Things .Then, it provides a device model for electronic shelf labels controlled by relative time, the system workflow , a time-sharing queuing algorithm , and a relative-time sleep algo-rithm.The experimental results show that the effective use of relative time helps to manage a large num-ber of asynchronous electronic shelf labels working together .The working status of each label is accurate-ly and simply controlled via a server that commands the time of sleep , wake-up, and communication of each label , thus increasing each label＇s power efficiency .