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河南科技学院2014届本科毕业论文（设计）论文题目：基于激光扫描的智能往返跑控制系统学生姓名：闫伟所在院系：新科学院所学专业：电气工程及其自动化导师姓名：吴东完成时间：2014年03月10日摘要在传统的往返跑体育训练和比赛中,教练或者裁判以观测掐表的方式来测取运动员成绩,这样不仅存在较大的误差,甚至误判,而且工作人员劳动强度大和效率低。为解决这些难点，系统采用以简单易用的指纹识别模块采集运动员信息，以成本较低、应用广泛、易于程序烧录的STM32F103C8T6和ATMEL89S51为核心控制，以测量范围广、检测时间短、精度高的激光扫描运动员的通过信息，以功耗低、方便实用的nRF905射频收发器进行起点与折返点的通信，以LED显示电路进行计数与显示，来自动且精准的完成运动员的成绩测试。这样既可减轻教练或裁判的工作量，又能提高了工作效率与质量。关键字：激光扫描，往返跑，智能，通讯，nRF905AbstractSportstrainingandcompetitioninthetraditionalshuttlerun,coachorrefereeismeasuredobservationpinchtabletotaketheathletes'performance,sothatnotonlythereisabigerror,orevenmiscarriageofjustice,andthelaborintensityandlowefficiency.Inordertosolvethesedifficulties,thesystemusesthesystemeasy-to-usefingerprintrecognitionmoduleacquisitionathletes,asthecorecontroltolower-cost,widelyused,theeasyprogramburnSTM32F103C8T6andATMEL89S51,widemeasurementrange,shortdetectiontimehighprecisionlaserscanningathletesthroughinformation,lowpowerconsumption,convenientandpracticalnRF905RFtransceiverstartingpointturnaroundpointcommunicationcountanddisplay,LEDdisplaycircuit,automaticandaccuratecompletionofathletestesting.Thiswilllightentheworkloadofthecoachorreferee,butalsoimproveworkefficiencyandquality.Keywords:laserscanning，shuttlerun,,manufacture,communication,nRF905目录1绪论...............................................................................................................................................12系统总体设计方案.....................................................................................................................12.1起点控制系统......................................................................................................................12.2折返点控制系统..................................................................................................................13各单元电路设计.........................................................................................................................23.1电源电路设计......................................................................................................................23.3单片机的选用及最小系统设计设计...............................................................................43.3.1起点单片机控制电路设计.........................................................................................53.3.2折返点单片机控制电路设计.....................................................................................53.4激光扫描电路的设计.........................................................................................................63.4.1激光发射管与光敏接收管的选择............................................................................63.4.2激光扫描电路的设计与工作原理............................................................................73.5计时显示模块的电路设计................................................................................................73.5.174LS245芯片介绍.......................................................................................................73.5.2四位数码管显示模块..................................................................................................83.5.3数码管的驱动方式......................................................................................................83.6无线传输模块的电路设计................................................................................................83.6.1nRF905模块简介.........................................................................................................93.6.2无线传输模块系统的硬件设计..............................................................................113.6.3无线传输模块系统的软件设计..............................................................................114辅助电路的设计.......................................................................................................................135系统软硬件调试.......................................................................................................................125.1起点设备调试....................................................................................................................125.2折返点设备调试................................................................................................................136结束语........................................................................................................................................14致谢.................................................................................................................................................15参考文献........................................................................................................................................15附录1电路总图.........................................................................................................................16附录2部分子程序.....................................................................................................................1711绪论随着社会的发展、科技的进步，人们生活水平不断的提高，人们在追求舒适生活的同时，也没有忘记对身体素质的提高。尤其是2008年北京奥运会的成功召开，人们已把体育运动当做成一种时尚来追求，而跑步更是人们所青睐的运动之一。所以，很多集体场所（例如学校、军队、体育场等）出现了跑步训练热潮，且对于训练的成绩测试也有了越来越高的要求。人们采取各种各样的训练与成绩测试，大多方法并不系统也不专业，例如人们用肉眼观察掐秒表的方式来进行对运动员的成绩考核，这些人力考核方式给教练或裁判较大的工作量，且不能有效的准