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7. The distance indication may move up and down due to different
sizes of the obstacle at different positions.
8. Though the obstacle is in the sensing zone, obstacle may not
be detected since the ultrasonic waves are not reflected back
to the sensor.
9. The obstacle of a conical shape may not be detected, since the
ultrasonic waves get deflected away.
W52R07
Blind Zone
Obstacle
Sensing Zone
Blind Zone Obstacle Sensing Zone
RREEVVEERRSSEE PPAARRKKIINNGG AASSSSIISSTT SSYYSSTTEEMM ((RRPPAASS))