外文翻譯---基于旋轉(zhuǎn)加速度微傳感器的運(yùn)動(dòng)監(jiān)測(cè)系統(tǒng)

1、A Sport Activities Monitoring System based on Acceleration and Rotation Microelectromechanical Sensors(原文 1)Abstract—.Although.there.are.several.technological.tools.to.aid.sports.training,.most.of.them.are.high.c

2、ost.solutions.and.generally.very.specific.to.a.particular.sport,.which.hinders.the.diffusion.of.such.technologies..This.paper.presents.a.low-.cost.non-invasive.microcontroller.Sport.Activities.Monitoring.System.(SAMS).pr

3、ototype,.which.is.based.on.acceleration.and.rotation.microelectromechanical.sensors.(MEMs).for.obtaining.biomechanical.data.during.the.athlete’s.training,.without.leaving.the.natural.environment.of.his.activities..The.se

4、nsors.signals.are.wirelessly.transmitted.from.the.SAMS.to.the.computer.in.order.to.process.the.data,.through.an.easy.and.intuitive.Virtual.Instrument.(VI).interface.developed.in.LabVIEW..This.VI.saves.and.displays.real-t

5、ime.data.in.a.graphic.form..The.experimental.results.were.obtained.in.two.different.environments:.first.we.used.a.stationary.bike.and.then.we.tested.the.SAMS.in.a.professional.cycle.track..The.system.allows.the.accelerat

6、ion.acquisition.in.the.range.form.±1,5.G.until.±10.G.and.rotation.in.the.span.of.±50.o/s..The.maximum.transmission.range.is.about.70.m..The.SAMS.has.a.small.size.(37x49x20.mm).and.lightweight.(40.g),.makin

7、g.it.a.versatile.monitoring.system.to.aid.athletes.and.coaches.during.the.training,.allowing.refinements.on.the.technique..The.SAMS.is.also.a.suitable.tool.for.the.physical.education.research.area...Keywords:.acceleromet

8、er,.gyroscope,.sport.monitoring,.virtual.instrumentation,.wireless.communication,.real.time.feedback.I. INTRODUCTIONCurrently.advances.on.microelectronics.and.MEMs.sen-.sors,.are.each.time.smaller,.with.low.power.consump

9、tion.and.affordable.prices.making.it.more.feasible.and.permitting.its.application.on.sports..Accelerometers,.gyroscopes,.micro-.phones.and.cameras.among.others,.lend.themselves.suitable.to.a.wide.range.of.sports.applicat

10、ions.[1],.making.possible.to.obtain.biomechanical,.physical.or.cognitive.information.from.monitoring.the.athletes.performance.during.their.trainings.or.sport.practices..New.wireless.communication.standards.like.Bluetooth

11、.and.ZigbeeTM.,.provide.a.plat.Accelerometers:.The.MMA7260.(introduced.in.2005.by.FreescaleTM.[5]).and.the.MMA7261.[6].are.MEM’s.tri-axis.acceleration.sensors.with.selectable.sensitivity.(1,5/2/4/6.G),.low.current.consum

12、ption.(500.μA),.sleep.mode.(3.μA),.low.voltage.operation.(2,2.to.3,6.V).and.low.cost.(3,35.USD)..The.output.voltage.is.ratiometric.and.proportional.to.the.acceleration,.this.simply.means.that.the.output.offset.voltage.an

13、d.sensitivity.will.scale.linearly.with.applied.supply.voltage..Table.I.presents.the.typical.sensitivity.for.3,3.V.power.supply.voltage.and.Figure.2.shows.the.sensor.dynamic.acceleration.axis.Gyroscopes:.The.IDG-300.and.I

14、DG-1004.are.an.inte-.grated.dual-axis.angular.rate.sensors.(gyroscopes)..Both.of.them.use.InvenSenseTM.’s.proprietary.and.patented.MEMS.technology.with.vertically.driven,.vibrating.masses.to.make.a.functionally.complete,

15、.dual-axis.angular.rate.sensor.[7]..The.output.voltage.of.the.gyroscope.is.proportional.to.the.angular.velocity..The.IDG-300.full.scale.range.is.±500.o/s,.sensitivity.2.mV/./s,.low.voltage.operation.(3,0.to.3,3.V).a

16、nd.low.cost.(30.USD)..For.IDG-1004.[8].the.main.difference.is.the.full.scale.range.±50.o/s,.and.the.sensitivity.4.mV/.O/s..Figure.3.presents.the.rotation.axis.and.the.gyroscope.board.witch.is.going.to.be.part.of.the