基于LabVIEW的农药检测人员考试系统的设计
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摘要
针对无纸化考试过程中存在考生替考及考场作弊行为频频出现的问题,采用LabVIEW技术以及单片机技术,完成监考端与考试端的设计,并应用于农药残留检测等相关专业知识的考试中。该系统不仅实现了传统无纸化考试的基本功能,还实现了无死角实时录像、拍照等功能,其中,单片机控制云台实现摄像头旋转。实验表明,该系统具有数据传输稳定、测试结果准确、考场认证性强等特性,达到了预期的设计目标。
In allusion to the frequently-occurring problems such as examinees′ substitution and cheating during the paperless examination,the LabVIEW technology and single chip microcomputer technology are adopted to complete the design of the monitoring terminal and examination terminal,which are applied in examinations of pesticide residue detection and other related professional knowledge. The system can not only realize the basic functions of the traditional paperless examination,but also realize the functions of real-time video recording without blind angle and photographing. The single chip microcomputer is used to control the cloud platform for camera rotation. The experimental results show that the system has the characteristics of stable data transmission,accurate test results and strong examination room identification,which has achieved the expected design goals.
In allusion to the frequently-occurring problems such as examinees′ substitution and cheating during the paperless examination,the LabVIEW technology and single chip microcomputer technology are adopted to complete the design of the monitoring terminal and examination terminal,which are applied in examinations of pesticide residue detection and other related professional knowledge. The system can not only realize the basic functions of the traditional paperless examination,but also realize the functions of real-time video recording without blind angle and photographing. The single chip microcomputer is used to control the cloud platform for camera rotation. The experimental results show that the system has the characteristics of stable data transmission,accurate test results and strong examination room identification,which has achieved the expected design goals.
引文
[1] HE Xiaoxia. Designing of the information security examination system[J]. IERI procedia,2012,2:721-726.
[2] YA?CI M,üNAL M. Designing and implementing an adaptive online examination system[J]. Procedia-social and behavioral sciences,2014,116:3079-3083.
[3]尚宇峰,柯显信,卢孔笔.基于LabVIEW和FPGA的串口通信舵机控制系统[J].制造业自动化,2014,36(21):112-114.SHANG Yufeng,KE Xianxin,LU Kongbi. Serial communication servo control system based on LabVIEW and FPGA[J].Manufacturing automation,2014,36(21):112-114.
[4]刘永富,岳林.TCP/IP技术在远程动态测试虚拟仪器中的应用[J].机械工程与自动化,2011(1):39-41.LIU Yongfu,YUE Lin. Application of TCP/IP technique in remote dynamic testing virtual instrument[J]. Mechanical engineering&automation,2011(1):39-41.
[5]孙炜强,王德民,马义平.LabVIEW与数据库在柱状件静态参数测量系统中的应用[J].仪表技术,2014(10):47-49.SUN Weiqiang, WANG Demin, MA Yiping. Application of LabVIEW and datebase in static parameter measurement system of columnar parts[J]. Instrumentation technology,2014(10):47-49.
[6]刘东.基于WEB的C语言考试系统的设计[D].广州:华南理工大学,2010.LIU Dong. WEB-based test system for C language[D]. Guangzhou:South China University of Technology,2010.
[7]王子卿.基于LabVIEW的远程虚拟测试系统设计[J].电子技术与软件工程,2016(2):193.WANG Ziqing. Design of remote virtual test system based on LabVIEW[J]. Electronic technology&software engineering,2016(2):193.
[8]闫中威,孙大嵬.B/S模式在线考试系统性能优化及实现[J].计算机系统应用,2016,25(10):83-87.YAN Zhongwei,SUN Dawei. Performance optimization and implementation of online examination system based on B/S mode[J]. Computer systems&applications,2016,25(10):83-87.
[9]阚钰淇,张宁,徐熙平.LabVIEW平台下USB图像采集与处理系统设计[J].工业仪表与自动化装置,2013(6):80-82.KAN Yuqi,ZHANG Ning,XU Xiping. Image acquisition and processing system design based on LabVIEW and USB camera[J]. Industrial instrumentation&automation,2013(6):80-82.
[10]崔鹤,杨鹏.基于B/S结构的英语标准化考试系统设计与开发[J].电子设计工程,2016,24(20):46-49.CUI He,YANG Peng. Design and development of the English standardized test system based on B/S structure[J]. Electronic design engineering,2016,24(20):46-49.
[2] YA?CI M,üNAL M. Designing and implementing an adaptive online examination system[J]. Procedia-social and behavioral sciences,2014,116:3079-3083.
[3]尚宇峰,柯显信,卢孔笔.基于LabVIEW和FPGA的串口通信舵机控制系统[J].制造业自动化,2014,36(21):112-114.SHANG Yufeng,KE Xianxin,LU Kongbi. Serial communication servo control system based on LabVIEW and FPGA[J].Manufacturing automation,2014,36(21):112-114.
[4]刘永富,岳林.TCP/IP技术在远程动态测试虚拟仪器中的应用[J].机械工程与自动化,2011(1):39-41.LIU Yongfu,YUE Lin. Application of TCP/IP technique in remote dynamic testing virtual instrument[J]. Mechanical engineering&automation,2011(1):39-41.
[5]孙炜强,王德民,马义平.LabVIEW与数据库在柱状件静态参数测量系统中的应用[J].仪表技术,2014(10):47-49.SUN Weiqiang, WANG Demin, MA Yiping. Application of LabVIEW and datebase in static parameter measurement system of columnar parts[J]. Instrumentation technology,2014(10):47-49.
[6]刘东.基于WEB的C语言考试系统的设计[D].广州:华南理工大学,2010.LIU Dong. WEB-based test system for C language[D]. Guangzhou:South China University of Technology,2010.
[7]王子卿.基于LabVIEW的远程虚拟测试系统设计[J].电子技术与软件工程,2016(2):193.WANG Ziqing. Design of remote virtual test system based on LabVIEW[J]. Electronic technology&software engineering,2016(2):193.
[8]闫中威,孙大嵬.B/S模式在线考试系统性能优化及实现[J].计算机系统应用,2016,25(10):83-87.YAN Zhongwei,SUN Dawei. Performance optimization and implementation of online examination system based on B/S mode[J]. Computer systems&applications,2016,25(10):83-87.
[9]阚钰淇,张宁,徐熙平.LabVIEW平台下USB图像采集与处理系统设计[J].工业仪表与自动化装置,2013(6):80-82.KAN Yuqi,ZHANG Ning,XU Xiping. Image acquisition and processing system design based on LabVIEW and USB camera[J]. Industrial instrumentation&automation,2013(6):80-82.
[10]崔鹤,杨鹏.基于B/S结构的英语标准化考试系统设计与开发[J].电子设计工程,2016,24(20):46-49.CUI He,YANG Peng. Design and development of the English standardized test system based on B/S structure[J]. Electronic design engineering,2016,24(20):46-49.