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General tab
Shutter speed
The shutter speed value can be selected between the
following ones:
-
Automatic
-
1/30
-
1/60
-
1/120
-
1/250
-
1/500
-
1/1000
-
1/2000
-
1/4000
-
1/10000
The shutter speed value is used for setting up the contrast
inside the licence plate between the white background and
the black letters.
• Automatic Shutter Speed:
-
Select Automatic Shutter Speed in the rolling menu
-
Click on "APPLY" button
-
Wait 15 seconds while the software is restarting
-
Click on "REFRESH" button
-
Wait 30 seconds while the software is initializing and
choosing the best shutter speed value
Note: This value is used for outdoors installations (as long
as light condition is changing) and must not be used for
indoor installations. Place a Licence Plate in the view of the
camera if possible for this operation.
• Fix shutter speed
-
Select the appropriate fix shutter speed value, while
knowing that 1/30 makes a lighter image than 1/60.
For indoor application, the best value is 1/1000.
Setup the iris accordingly to this value.
-
Click on "APPLY" button
-
Wait up to 1 second because of network lag in order
to watch the difference with the last fix shutter speed
value
Note: If an Automatic Shutter Speed value passes to a fix
shutter speed value, the software will restart (wait
approximately 15 seconds). If a fix shutter speed value
changes with another fix shutter speed value the software
will not restart (wait approximately 15 seconds + 30
seconds for initialization).
Multiple reads
• OFF
If this value is selected the flood option is off. If the flood
option is disabled, then the camera will output the licence
plate result (on the activated interfaces) only once per
licence plate which is passing through the image. There is
a temporal integration of the plate processed during the
recognition which is used to give as an output the best
result. The only way for the software to change the result
associated to a licence plate is to find a better one.
• ON
If this value is selected the flood option is on. When the
flood option is enabled, the camera will output the licence
plate result (on all the activated interfaces) approximately 3
times per second. As long as the vehicle is in the view of
the camera, the licence plate result will be given at this
frequency. There is no temporal integration of the plate
which mean the system will output as many results as
possible, whatever the identification, the position or the
reliability of the licence plate is.
• ON+FILTER
If this value is selected, there is no temporal integration of
the licence plate. The system will output as many results as
possible, whatever the reliability of the licence plate result
is. However, a filter is applied, a licence plate result will
never be outputted twice if it is the same.
Click on "APPLY" button and wait for approximately 20
seconds for the parameters to take effect.
Bad plate option
The Bad Plate Option can be either enabled or disabled. This
option is used to give a unique identifier for dirty or damaged
licence plates.
When the software finds a result for a licence plate which is
not high enough in term of reliability (for more option, go to
chapter "Verification of the installation"), then the software will
output the fix number 9999XXX99 (this number can be
changed).
• OFF: if you select this value and click on "APPLY" then the
bad plate option will be disabled. Wait approximately 15
seconds for software restart.
Page 28 / 42
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