在分析服装企业原材料仓库管理业务过程的基础上,指出仓库管理存在盘点工作量巨大、库存数量不准确等问题,结合RFID(radio frequency identification)技术的高速移动物体识别、多目标和非接触识别、环境适应性好等特点,提出在服装企业...在分析服装企业原材料仓库管理业务过程的基础上,指出仓库管理存在盘点工作量巨大、库存数量不准确等问题,结合RFID(radio frequency identification)技术的高速移动物体识别、多目标和非接触识别、环境适应性好等特点,提出在服装企业原材料仓库实施RFID的应用方案。该应用方案由3个部分组成,描述应用系统信息需求的信息方案,说明如何使用标签的方法与过程的标签方案和结合具体业务过程的应用方案。该方案可以给服装企业构建RFID应用系统提供较高的参考价值。展开更多
在分析现有基于(EPC Class 1Gen,2EPCGen2)标准的轻量级RFID相互认证协议的基础上,提出了一种符合EPCGen2标准的基于射频指纹的RFID认证协议。协议融合了RFID设备的物理层信息,实现了RFID标签的跨层融合认证,具有增强RFID系统安全强度...在分析现有基于(EPC Class 1Gen,2EPCGen2)标准的轻量级RFID相互认证协议的基础上,提出了一种符合EPCGen2标准的基于射频指纹的RFID认证协议。协议融合了RFID设备的物理层信息,实现了RFID标签的跨层融合认证,具有增强RFID系统安全强度的特点。分析显示,提出协议具有相互认证、私密性、防止重放攻击、防止去同步攻击等安全性能,尤其能有效对抗RFID标签的克隆攻击。展开更多
In this paper,a wireless energy-harvested ultra-high frequency(UHF)wireless sensor network(WSN)tag is designed and implemented for cellular Io T applications.The WSN tag is made up of a wireless energy harvesting circ...In this paper,a wireless energy-harvested ultra-high frequency(UHF)wireless sensor network(WSN)tag is designed and implemented for cellular Io T applications.The WSN tag is made up of a wireless energy harvesting circuit,a temperature sensing circuit,and a radio frequency identification(RFID)tag.The developed WSN tag is compatible with the ISO/IEC18000-6C protocol.The WSN tag can receive the GSM RF energy operating in China GSM900 and GSM1800 bands in the surrounding environment and the solar energy,then converts the RF energy to direct current(DC)by schottky diode-based rectifying circuit,and finally stores the DC energy in a supercapacitor through a DC-DC booster circuit.The DC-DC booster circuit drives the front-end circuit,TI MSP430 microcontroller,temperature sensing circuit,and other active circuits in the tag.The MSP430 works in low-power mode when it is powered up,and it can also reduce power consumption more by reducing main clock(MCLK)frequency according to different forward link rates.The implemented WSN tag demonstrated that the RF-to-DC conversion efficiency is higher than 39% when the receiving 900 MHz RF signal power is from -14 dBm to 0 dBm and could make the tag work normally.The signal receiving sensitivity of the WSN tag is up to-32 dBm at the rate of 40 kbit/s from the Reader to the WSN tag.The WSN tag supports Miller coding and extended Miller coding.This wireless energy harvested UHF WSN tag,compared with conventional UHF passive tags and battery-powered active UHF RFID Tags,has many advantages,such as far communication distance,long service life,and sensing functionality.It will have wide applications in the Internet of Things(IoT).展开更多
随着物联网的发展和无线射频识别技术(radio frequency identification,RFID)的广泛应用,RFID系统的安全问题越发突出。其中克隆标签的出现极大地阻碍了RFID系统的大规模发展,成为当前一个亟待解决的难题。通过总结分析目前RFID克隆标...随着物联网的发展和无线射频识别技术(radio frequency identification,RFID)的广泛应用,RFID系统的安全问题越发突出。其中克隆标签的出现极大地阻碍了RFID系统的大规模发展,成为当前一个亟待解决的难题。通过总结分析目前RFID克隆标签检测领域的一些主流方法,旨在为后续研究更有效的RFID克隆标签检测策略奠定基础。针对目前已知的一些检测方法,该文将克隆标签检测方法归纳总结为射频指纹、同步秘密、轨迹分析和碰撞检测四大类,并较为系统地对这四大类方法所包含的具体策略进行了研究,同时对这些方法策略进行了横向与纵向的对比分析。目前这四类方法都存在一定的缺陷,导致其无法直接应用于现有RFID系统进行克隆标签检测或者应用条件较苛刻。针对目前这些方法存在的问题,认为匿名RFID系统克隆标签的分布式检测是未来的一个主要研究方向。展开更多
文摘在分析服装企业原材料仓库管理业务过程的基础上,指出仓库管理存在盘点工作量巨大、库存数量不准确等问题,结合RFID(radio frequency identification)技术的高速移动物体识别、多目标和非接触识别、环境适应性好等特点,提出在服装企业原材料仓库实施RFID的应用方案。该应用方案由3个部分组成,描述应用系统信息需求的信息方案,说明如何使用标签的方法与过程的标签方案和结合具体业务过程的应用方案。该方案可以给服装企业构建RFID应用系统提供较高的参考价值。
文摘在分析现有基于(EPC Class 1Gen,2EPCGen2)标准的轻量级RFID相互认证协议的基础上,提出了一种符合EPCGen2标准的基于射频指纹的RFID认证协议。协议融合了RFID设备的物理层信息,实现了RFID标签的跨层融合认证,具有增强RFID系统安全强度的特点。分析显示,提出协议具有相互认证、私密性、防止重放攻击、防止去同步攻击等安全性能,尤其能有效对抗RFID标签的克隆攻击。
基金supported in part by Guangdong Provincial Science and Technology Planning Program(Industrial High-Tech Field)of China under project contracts No.2016A010101036Sichuan Provincial Science and Technology Planning Program(Technology Supporting Plan)of China under project contracts No.2016GZ0061 and No.2016GZ0116and No.2017GZ0336+1 种基金the fundamental research funds for the Central Universities under project contract No.ZYGX2016Z011the National Natural Science Foundation of China under project contracts No.61371047,No.61601093 and No.61701082
文摘In this paper,a wireless energy-harvested ultra-high frequency(UHF)wireless sensor network(WSN)tag is designed and implemented for cellular Io T applications.The WSN tag is made up of a wireless energy harvesting circuit,a temperature sensing circuit,and a radio frequency identification(RFID)tag.The developed WSN tag is compatible with the ISO/IEC18000-6C protocol.The WSN tag can receive the GSM RF energy operating in China GSM900 and GSM1800 bands in the surrounding environment and the solar energy,then converts the RF energy to direct current(DC)by schottky diode-based rectifying circuit,and finally stores the DC energy in a supercapacitor through a DC-DC booster circuit.The DC-DC booster circuit drives the front-end circuit,TI MSP430 microcontroller,temperature sensing circuit,and other active circuits in the tag.The MSP430 works in low-power mode when it is powered up,and it can also reduce power consumption more by reducing main clock(MCLK)frequency according to different forward link rates.The implemented WSN tag demonstrated that the RF-to-DC conversion efficiency is higher than 39% when the receiving 900 MHz RF signal power is from -14 dBm to 0 dBm and could make the tag work normally.The signal receiving sensitivity of the WSN tag is up to-32 dBm at the rate of 40 kbit/s from the Reader to the WSN tag.The WSN tag supports Miller coding and extended Miller coding.This wireless energy harvested UHF WSN tag,compared with conventional UHF passive tags and battery-powered active UHF RFID Tags,has many advantages,such as far communication distance,long service life,and sensing functionality.It will have wide applications in the Internet of Things(IoT).
文摘随着物联网的发展和无线射频识别技术(radio frequency identification,RFID)的广泛应用,RFID系统的安全问题越发突出。其中克隆标签的出现极大地阻碍了RFID系统的大规模发展,成为当前一个亟待解决的难题。通过总结分析目前RFID克隆标签检测领域的一些主流方法,旨在为后续研究更有效的RFID克隆标签检测策略奠定基础。针对目前已知的一些检测方法,该文将克隆标签检测方法归纳总结为射频指纹、同步秘密、轨迹分析和碰撞检测四大类,并较为系统地对这四大类方法所包含的具体策略进行了研究,同时对这些方法策略进行了横向与纵向的对比分析。目前这四类方法都存在一定的缺陷,导致其无法直接应用于现有RFID系统进行克隆标签检测或者应用条件较苛刻。针对目前这些方法存在的问题,认为匿名RFID系统克隆标签的分布式检测是未来的一个主要研究方向。
