STARTINGANDDRIVING
Theintelligentspeedlimitmaynotwork
properlyinthefollowingcases:
1Thedetectionperformanceoffrontviewcamerais
affected;
2Thevehicleisdrivenatahighspeed;
3Thespeedlimitsignsareblockedbythetreesatthe
roadside,ice/frost,snows,dusts,etc;orthespeedlimit
signsareplacedimproperlyordamaged;
4Thereareseveralspeedlimitsignssetupovertheroad
orattheroadside;Currently,thefrontviewcamera
canonlyidentifythespeedlimitsignsforthelanethe
cardriveson;
5Thespeedlimitsignssetupattheforksintheroad,
thecurvesandtheon-ramp/off-ramp;
6Lanechange,etc.
IMPORTANT
•Thecameramaynotcorrectlyrecognisespeedlimit
signsduringpoorlightingconditions,badweather,
non-standardizedorshelteredspeedlimitsigns
orthecamera’sownrestrictionswhichinclude
therecognitionofsimilarsigns(e.g.,recognisea
weightlimitsignasaspeedlimitsign,orrecognisea
minimumspeedsignasthemaximumspeedsign).
•Thecameracannotidentifythetextprovidedbelow
thespeedlimitsign,suchasAuxiliaryLane,100m
Ahead,SchoolSection,7:00-10:00,etc.Thecamera
willidentifythespeedlimitsignwithtextasanormal
speedlimitsign.
•Somedrasticandrapidsteeringoperationsofthe
drivermaybejudgedaschanginglaneorturning
aroundintheintersectionbythesystem,resulting
intheidentiedspeedlimitsignsbeingcleared.
•Incaseswhereaspeedlimitsigncontainsmultiple
speedlimits.Thecameramaynotidentifyallthe
speedlimits.
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