摘要
针对有源电子标签的功耗大和寿命短等问题,提出了一种基于远距离(Long Range,LoRa)标准和帧时隙ALOHA(Frame Slot ALOHA)算法的低功耗有源电子标签设计方案。首先,为实现低功耗的性能要求,在标签中引入预唤醒命令,并通过对预唤醒、唤醒周期中休眠和侦听时间的调整,进一步降低了标签的功耗。其次,采用帧时隙ALOHA算法以缓解标签在选择时隙中的碰撞问题。实际测试结果表明,加入预唤醒命令后,标签的理想侦听时间降低为4 ms,且休眠时长增加,能够满足延长标签工作寿命的实际要求。
In order to reduce the power consumption and prolong operation time of the active tag,a LoRa(Long Range)standard and frame time slot ALOHA algorithm enabled low-power active tag design scheme is proposed.Specifically,a pre-wake-up command is integrated into the tag to achieve the low power consumption requirement,and the power consumption of the tag is lowered by adjusting the pre-wake-up,sleep and listening time in the wake-up cycle.In addition,the frame slot ALOHA algorithm is used to alleviate the collision problem of the tag in the selected slot.Finally,the measurement results reveal that when the pre-wake-up command is considered,ideal listening duration of the tag is reduced to 4ms and the sleep duration is greatly increased,which satisfies the practical requirements of increasing the working life of the active tag.
作者
卢光跃
苏可可
王宏刚
刘志朋
裴沛东
LU Guangyue;SU Keke;WANG Honggang;LIU Zhipeng;PEI Peidong(Shaanxi Key Laboratory of Information Communication Network and Security,Xi'an University of Posts and Telecommunications,Xi'an 710121,China)
出处
《西安邮电大学学报》
2021年第1期39-45,共7页
Journal of Xi’an University of Posts and Telecommunications
基金
陕西省重点科技创新团队计划资助项目(2017KCT-30-02)。
