Sensys Networks MAG2 MAG2/GR Sensor User Manual VSN240 F GR Sensor Data Sheet

Sensys Networks, Inc. MAG2/GR Sensor VSN240 F GR Sensor Data Sheet

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1608 4th Street Suite 200 Berkeley CA 94710| info@sensysnetworks.com | P 510.548.4620 F 510.548.8264 1608 4th Street Suite 200 Berkeley CA 94710 | info@sensysnetworks.com| P 510.548.4620 F 510.548.8264 Functions / FeaturesLower power consumption3-axis magnetometer for vehicle detection• 128Hzsamplingrate• Countandpresencedetectionmodes• ModesforbicycleandmotorcycledetectionFlush mount or up to 7" depth in-pavement installation with no wires or lead-in cablingFast and simple installation• Installsinlessthan10minutesinsmallholeusingahammerorcoredrill–4”(10cm)diameter;amaximumof7”(17.8cm)deep–Coveredwithfast-dryingepoxy• Minimallaneclosuretime• NosawcutsExpected 10 year battery life• Ruggedmechanicaldesign• Auto-calibration Reliable 2-way radio communications with access point• Uniquelyaddressableandcongurable• Firmwarecanbeupgradedover-the-airReadily deployed where other systems cannot be used• Splitroadways• Highwatertables• DamagedpavementMAG2/Grind Resistant (GR) SensorThe Sensys Networks VDS240 Wireless Vehicle Detection System useswirelessmagneto-resistivesensorstodetectthepresenceandmovementofvehicles.Thesensors–installedinholescoredintheroadwayandcoveredwithepoxy–transmitdetectiondatainreal-timevialow-powerradiotechnologytoanearbySensysNetworksaccesspoint.Vehicledetectionsarefurtherrelayedtoatrafcsignalcontroller,remotetrafcmanagementcenter,orothersystem.The new MAG2/GR sensordevelopedbySensysNetworksutilizesthenextgenerationofRFchipsetsandcircuitry.TheMAG2sensorsareinstalledushwiththeroadwaysurfaceinplasticshells.Theplasticshellsenabletheremovalandreplacementofsensorsduringroadwaymillingoperations.TheGRsensorsareinstalledatdepthofupto7inchesbelowthetopoftheroadwaysurfacewithoutplasticshells.Sensorsinstalledatthesedepthsdonothavetoberemovedandreplacedduringmostroadwaymillingoperations.Intypicaltrafcmanagementapplications,asensorisplacedinthemiddleofatrafclanetodetectthepresenceandpassageofvehicles.Vehiclespeedsandlengtharemeasuredbytwosensorsinstalledinthesamelanewiththeexactdistancebetweenthemconguredinsoftware.Therecommendeddistancebetweensensorsdependsontherangeofexpectedspeedstobemeasured:fortypicalfreewayapplications,aseparationof20to24feet(6.1to7.3meters)isrecommended;fortypicalarterialapplications,aseparationof10to12feet(3.1to3.7meters)ispreferred.Advanced Magnetometer-Based Vehicle Detection. Thestate-of-the-artmagneto-resistivesensingdevicesineachwirelesssensormeasurethex-,y-,andz-axiscomponentsoftheEarth’smagneticeldata128Hzsamplingrate.Asvehiclescomewithinrange,changesinthex,y,orzaxesofthemeasuredmagneticeldbecomeapparent.Whennovehiclesarepresent,sensorscontinuallymeasurethebackgroundmagneticeldtoestimateareference.Eachsensorautomaticallyself-calibratestothelocalenvironment,andtoanylong-termvariationsofthelocalmagneticeld,byallowingthisreferencevaluetochangeovertime.Types of MAG2/GR Sensors:VSN240-F-2• Flush-mountwirelesssensorforin-pavementinstallation• For allfreeway,arterial,andsignalcontrolapplicationsVSN240-T-2• Flush-mountwirelesssensorforin-pavementinstallation• For signalcontrolapplicationsonlyVSN240-F-GR• Forupto7"depthin-pavementinstallation• For allfreeway,arterial,andsignalcontrolapplicationsVSN240-T-GR• Forupto7"depthin-pavementinstallation• For signalcontrolapplicationsonly

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