Wavetronix SmartSensor Matrix (SS-225) - User Guide Manual do Utilizador descarregar pdf (Página 113)

112 APPENDIX

200

140 ft

100

26'

15'

18'

11'

13'

Figure E.1 – Matrix Beam Footprints

In an installation where the SmartSensor Matrix is installed in its preferred stop bar loca-

tion, angular resolution will likely not be a problem. is is because as the vehicles approach

the stop bar they will pass through the middle of the sensor’s view and be resolved. Also, as

the cars approach the stop bar they move into a more side-re orientation to the beams and

then can be resolved by their range dierences.

Using the extended range to monitor two approaches puts the sensor in a position where it

has to monitor lanes at its extreme edges. is is not a recommended application because

the beams are the widest at the edge of the sensor’s view, resulting in unfavorable angular

resolution.

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Wavetronix SmartSensor Matrix (SS-225) - User Guide Manual do Utilizador Página 113