基于STM32的半主动式电子标签低功耗性能评估系统
|
摘要
为了解决射频识别系统中电子标签的低功耗问题,提出并设计了基于STM32的半主动式电子标签低功耗性能评估系统,采用时分复用的方法,通过一个节点管控多个电子标签,同时将各个电子标签接收到的信号通过CAN总线传输给系统软件架构,实现系统总体设计,充分考虑系统主要功耗来源,对系统硬件部分进行设计时选取具有超低功耗优点的STM32单片机和nRF24LE1芯片,系统硬件部分主要包括微控制器单元、电源转换电路单元、射频信号采集单元、电子标签功耗计算单元以及系统天线;通过采用模块化编程方法,在完成电子标签基本功能的同时,实现低功耗运行。对系统软件架构部分进行了设计,主要包括系统硬件控制层、系统低功耗性能评估标准测试层以及系统终应用端显示层三部分,利用该系统实现了电子标签低功耗性能评估。通过实验结果分析,证明了该系统对电子标签低功耗性能评估准确性较高,得到了选择合适的射频信号长度值和脉冲宽度值能够大大降低射频信号接收功耗的结果。
In order to solve the current low-power consumption problem of electronic tags,a semi-active electronic tag low-power performance evaluation system based on STM32 is proposed and designed,and a time-division multiplexing method is adopted to control multiple electronic tags through one node and simultaneously each electronic device.The signal received by the tag is transmitted to the system software architecture through the CAN bus to implement the overall system design and fully consider the main power consumption of the system.When designing the hardware part of the system,STM32 microcontroller and nRF24 LE1 chip with ultra low power consumption are selected.Some of them mainly include microcontroller unit,power conversion circuit unit,RF signal acquisition unit,electronic tag power consumption calculation unit and system antenna.By adopting a modular programming method,low power operation can be realized while completing the basic functions of the electronic tag.The part of the system software architecture is designed,including three parts:the system hardware control layer,the system low-power performance evaluation standard test layer,and the system end application display layer.The system uses this system to realize the low-power performance evaluation of the electronic tag.Through the analysis of the experimental results,it is proved that the system has high accuracy for evaluating the low-power performance of the RFID tag,and the result of selecting the appropriate RF signal length and pulse width value can greatly reduce the RF signal reception power consumption.
In order to solve the current low-power consumption problem of electronic tags,a semi-active electronic tag low-power performance evaluation system based on STM32 is proposed and designed,and a time-division multiplexing method is adopted to control multiple electronic tags through one node and simultaneously each electronic device.The signal received by the tag is transmitted to the system software architecture through the CAN bus to implement the overall system design and fully consider the main power consumption of the system.When designing the hardware part of the system,STM32 microcontroller and nRF24 LE1 chip with ultra low power consumption are selected.Some of them mainly include microcontroller unit,power conversion circuit unit,RF signal acquisition unit,electronic tag power consumption calculation unit and system antenna.By adopting a modular programming method,low power operation can be realized while completing the basic functions of the electronic tag.The part of the system software architecture is designed,including three parts:the system hardware control layer,the system low-power performance evaluation standard test layer,and the system end application display layer.The system uses this system to realize the low-power performance evaluation of the electronic tag.Through the analysis of the experimental results,it is proved that the system has high accuracy for evaluating the low-power performance of the RFID tag,and the result of selecting the appropriate RF signal length and pulse width value can greatly reduce the RF signal reception power consumption.
引文
[1] 黄凤英,黄爱萍.超高频RFID标签数字电路的低功耗设计[J].微电子学,2017,47(3):388-391.
[2] 乔丽萍,杨振宇,靳钊.基于BLF时钟的RFID低功耗数字基带设计[J].半导体技术,2017,42(4):259-263.
[3] 王勇,唐小虎,张莉涓.RFID系统中停留标签的组策略防碰撞算法[J].电子与信息学报,2016,38(3):594-599.
[4] 李健,徐新安,慕振成,等.中国散裂中子源直线射频功率源系统的研制[J].强激光与粒子束,2016,28(8):161-167.
[5] 曹振平.射频传输系统功率补偿研究[J].核电子学与探测技术,2016,36(1):48-51.
[6] 万真真,王永清,施宁,等.辉光放电光谱激发源的射频功率驱动及自动控制系统[J].高电压技术,2016,42(6):1942-1948.
[7] 朱嘉,刘红侠.低成本片上射频内建自测系统的关键参数测量[J].西安电子科技大学学报,2017,44(4):29-33.
[8] 王昕辰,陈智军,付俊,等.声表面波射频识别系统的阅读器微带天线设计[J].压电与声光,2016,38(4):615-619.
[9] 郭凤鸣,李兵,邓芳明.适用无源射频识别标签的集成压力传感器设计[J].电子器件,2016,39(4):796-800.
[10] 王鸿曦,刘光祖,王建新.AIS信号射频直接采样与数字下变频设计与实现[J].电子设计工程,2017,25(20):64-67.
[11] 高雪,房少军,钟华华,等.基于无源UHF RFID实验室设备管理系统的天线布局设计[J].大连海事大学学报,2017,43(4):112-116.
[12] 魏国军,刘春雷,雷玉常,等.RF-SIM卡射频自动化测试系统设计与应用[J].自动化与仪器仪表,2018(1):188-190.
[13] 龙昭华,宫腾飞.基于非空时隙数的无线射频识别标签估算算法[J].计算机应用,2016,36(1):101-106.
[14] 段汉俊,吴海锋,曾玉.物理层超高频射频识别标签信号分离中的信道估计[J].电子与信息学报,2016,38(1):119-126.
[15] 南敬昌,包晓伟,郭映言.基于低频触发的高精度RFID定位系统的设计与实现[J].工程设计学报,2017,24(2):225-231.
[2] 乔丽萍,杨振宇,靳钊.基于BLF时钟的RFID低功耗数字基带设计[J].半导体技术,2017,42(4):259-263.
[3] 王勇,唐小虎,张莉涓.RFID系统中停留标签的组策略防碰撞算法[J].电子与信息学报,2016,38(3):594-599.
[4] 李健,徐新安,慕振成,等.中国散裂中子源直线射频功率源系统的研制[J].强激光与粒子束,2016,28(8):161-167.
[5] 曹振平.射频传输系统功率补偿研究[J].核电子学与探测技术,2016,36(1):48-51.
[6] 万真真,王永清,施宁,等.辉光放电光谱激发源的射频功率驱动及自动控制系统[J].高电压技术,2016,42(6):1942-1948.
[7] 朱嘉,刘红侠.低成本片上射频内建自测系统的关键参数测量[J].西安电子科技大学学报,2017,44(4):29-33.
[8] 王昕辰,陈智军,付俊,等.声表面波射频识别系统的阅读器微带天线设计[J].压电与声光,2016,38(4):615-619.
[9] 郭凤鸣,李兵,邓芳明.适用无源射频识别标签的集成压力传感器设计[J].电子器件,2016,39(4):796-800.
[10] 王鸿曦,刘光祖,王建新.AIS信号射频直接采样与数字下变频设计与实现[J].电子设计工程,2017,25(20):64-67.
[11] 高雪,房少军,钟华华,等.基于无源UHF RFID实验室设备管理系统的天线布局设计[J].大连海事大学学报,2017,43(4):112-116.
[12] 魏国军,刘春雷,雷玉常,等.RF-SIM卡射频自动化测试系统设计与应用[J].自动化与仪器仪表,2018(1):188-190.
[13] 龙昭华,宫腾飞.基于非空时隙数的无线射频识别标签估算算法[J].计算机应用,2016,36(1):101-106.
[14] 段汉俊,吴海锋,曾玉.物理层超高频射频识别标签信号分离中的信道估计[J].电子与信息学报,2016,38(1):119-126.
[15] 南敬昌,包晓伟,郭映言.基于低频触发的高精度RFID定位系统的设计与实现[J].工程设计学报,2017,24(2):225-231.