基于RFID的考勤系统的设计与实现
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摘要
为弥补传统课堂考勤机制占用上课时间,无法避免替点名现象的发生,研制了一套基于无线射频识别(RFID:Radio Frequency Identification)技术的校园课堂考勤系统。该系统结合校园中已普及的"一卡通"等学生IC卡,采用两对对射式红外传感器和FM1702SL无线射频读卡器相结合方式,获取上课学生的姓名、学号和进出教室状态等信息,并通过nRF24L01无线传输模块和FT232RL电平转换电路,将信息传输到上位机。上位机通过由Visual Basic语言编写的软件程序,自动统计和整理信息,并生成学生平时成绩,免去了教师手动统计的负担。对101名学生代刷卡的违规操作及82名学生正常刷卡操作进行测试,结果显示,违规进出学生人数为98人,正常刷卡人数为81人,相对误差均小于3%。
In order to make up the disadvantage that the traditional attendance system used in classroom takes up the class time.At the same time,in order to improve students' class attendance,and eliminate the burden that the teachers Statistics students usually scores manually.We developed a attendance system used in campus classroom based on radio frequency identification technology.The system combines student IC card which has been popular used on campus.It uses two alignment type infrared sensors combined FM1702SL wireless RF card reader to Get students' name,number,and status that students out of the classroom or not.Then the information is transmitted to the host computer through the nRF24L01 wireless transmission module and the FT232RL level conversion circuit.The host computer statistics,organizes information and generate students usual results through the software program written in Visual Basic language.It can eliminate the burden of teachers.System testing arrangements for 183 college students carrying the Student IC card out of the classroom,which 101 students from bringing himself and other students IC card and continuous brush cards illegal operations in and out of the classroom,and the remaining 82 students make a normal credit cardoperation.The test results show that 98 students violate the rules amd 81 students obey the rules,the relative error is less than 3%.
In order to make up the disadvantage that the traditional attendance system used in classroom takes up the class time.At the same time,in order to improve students' class attendance,and eliminate the burden that the teachers Statistics students usually scores manually.We developed a attendance system used in campus classroom based on radio frequency identification technology.The system combines student IC card which has been popular used on campus.It uses two alignment type infrared sensors combined FM1702SL wireless RF card reader to Get students' name,number,and status that students out of the classroom or not.Then the information is transmitted to the host computer through the nRF24L01 wireless transmission module and the FT232RL level conversion circuit.The host computer statistics,organizes information and generate students usual results through the software program written in Visual Basic language.It can eliminate the burden of teachers.System testing arrangements for 183 college students carrying the Student IC card out of the classroom,which 101 students from bringing himself and other students IC card and continuous brush cards illegal operations in and out of the classroom,and the remaining 82 students make a normal credit cardoperation.The test results show that 98 students violate the rules amd 81 students obey the rules,the relative error is less than 3%.
引文
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[15]魏彩乔,王晓光,焦满囤.基于VB和EXCEL的复杂数据报表输出[J].华北航天工业学院学报,2005,15(1):3-7.WEI Cai-qiao,WANG Xiao-guang,JIAO Man-dun.The Output of Complex Data Report Based on VB and EXCEL[J].Journal of North China Institute of Astronautic Engineer,2005,15(1):3-7.
[2]龚世雄.浅析RFID技术及其应用[J].中国科技信息,2013(3):52-53.GONG Shi-xiong.Analysis of RFID Technology and Its Applications[J].China Science and Technology Information,2013(3):52-53.
[3]马剑峰,王丽,马絮飞.液滴红外光电自动检测计数器的研制[J].实验室研究与探索,2008,27(6):64-66.MA Jian-feng,WANG Li,MA Xu-fei.Development of Droplet Infrared Photoelectric Auto-Detecting Counter[J].Research and Exploration in Laboratory,2008,27(6):64-66.
[4]卢少平,郑明,吴耀华.基于RFID的教室考勤系统设计研究[J].现代电子技术,2010(18):44-50.LU Shao-ping,ZHENG Ming,WU Yao-hua.Attendance System for Classroom with RFID[J].Modern Electronics Technique,2010(18):44-50.
[5]郑嘉利,QIN TUAN-FA,倪光南.Tree-Based Backoff Protocol for Fast RFID Tag Identification[J].中国邮电高校学报:英文版,2013,20(2):37-41.ZHENG Jia-li,QIN TUAN-FA,NI Guang-nan.Tree-Based Backoff Protocol for Fast RFID Tag Identification[J].China Post and Telecommunications University Journals:English Version,2013,20(2):37-41.
[6]程德福,王君,凌振宝,等.传感器原理及应用[M].北京:机械工业出版社,2011.CHENG De-fu,WANG Jun,LING Zhen-bao,et al.Sensor Principle and Application[M].Beijing:China Mechine Press,2011.
[7]邢海霞,索明何.基于FM1702射频识别读写器的设计与实现[J].科技广场,2007(1):202-204.XING Hai-xia,SUO Ming-he.Based on FM1702 RFID Reader Design and Implementation[J].Technology Square,2007(1):202-204.
[8]潘绍明,罗功坤,劳有兰.基于无线传感器网络的RFID系统[J].仪表技术与传感器,2012(6):86-87.PAN Shao-ming,LUO Gong-kun,LAO You-lan.Design of RFID System Based on WSN[J].Instrument Technique and Sensor,2012(6):86-87.
[9]刘志平,赵国良.基于nRF24L01的近距离无线数据传输[J].应用科技,2008,35(3):55-58.LIU Zhi-ping,ZHAO Guo-liang.Short-Range Wireless Data Transmission Based on nRF24L01[J].Applied Science and Technology,2008,35(3):55-58.
[10]千承辉,韩晓惠,王文应,等.基于CC1100无线传输的人流量统计系统设计[J].吉林大学学报:信息科学版,2012,30(5):497-502.QIAN Cheng-hui,HAN Xiao-hui,WANG Wen-ying,et al.Statistics System Design on Flow of People Based on CC1100Wireless Transmission[J].Journal of Jilin University:Information Science Edition,2012,30(5):497-502.
[11]鲍兆伟,王林,徐琦,等.基于FT232R的USB-RS232转换模块的设计[J].电脑知识与技术,2008(7):1204-1206.BAO Zhao-wei,WANG Lin,XU Qi,et al.A Converter Module Design about USB-RS232 Based on FT232R[J].Computer Knowledge and Technology,2008(7):1204-1206.
[12]苏传芳.Visual Basic程序设计[M].北京:高等教育出版社,2007.SU Chuan-fang.Visual Basic Programming[M].Beijing:Higher Education Press,2007.
[13]郭天祥.51单片机C语言教程[M].北京:电子工业出版社,2009.GUO Tian-xiang.51 Single-Chip C Language Tutorial[M].Beijing:Publishing House of Electronic Industry,2009.
[14]李文锋,王汝传,孙力娟.MiniTE:Data Acquisition Routing for Wireless Sensor Networks[J].中国邮电高校学报:英文版,2009,16(1):16-21.LI Wen-feng,WANG Ru-chuan,SUN Li-juan.MiniTE:Data Acquisition Routing for Wireless Sensor Networks[J].China Post and Telecommunications University Journals:English Version,2009,16(1):16-21.
[15]魏彩乔,王晓光,焦满囤.基于VB和EXCEL的复杂数据报表输出[J].华北航天工业学院学报,2005,15(1):3-7.WEI Cai-qiao,WANG Xiao-guang,JIAO Man-dun.The Output of Complex Data Report Based on VB and EXCEL[J].Journal of North China Institute of Astronautic Engineer,2005,15(1):3-7.