JAI TS-2030EN Manuel D’Utilisation

 
 

 

 

 

 

To accurately set up the Vehicle Imaging Subsystem, the system installers need access to: 

1. A vehicle that can be temporarily parked on the road 

2. A plate that is:  

     a. typical in size and color for the site  

     b. clean, flat and in “like new” condition 

3. An adjustable plate stand that allows the plate to be mounted in a vertical plane, at various 

heights above the road, and at variable roll angles. The stand must allow the plate to be placed 
at both the nominal plate height and the minimum expected plate height. The stand must also 

allow the plate to be rolled at least + or – 10 degrees from horizontal but held firmly in place 
once a specific roll angle is selected. The stand should be heavy enough so that the wind will not 

blow it over or move it. 

minimum (bottom edge) 

8in or 20cm 

15in or 38cm 

nominal (middle) 

16in or 40cm 

24in or 60cm 

 

•  If the site employs a single camera per lane, then you can choose any lane to start the 

alignment procedure. 

•  If the site employs multiple cameras regularly spaced across a roadway to provide continuous 

fieldof- view coverage from edge to edge, select one of the cameras at either edge of the 

roadway to be the first camera to align. 

•  Align all remaining cameras in order from the first camera aligned to the last camera at the 

other side of the roadway. The next camera aligned is always the one adjacent to the camera 

most recently aligned. 

The VIS cameras and vehicle trigger line should have been installed at the locations agreed to by 

you and JAI. Typically JAI utilizes a specially developed Excel worksheet to confirm the suitability of 
the equipment placement at the site from an image processing perspective. See Figure for an 

example worksheet. However, equipment is often not located where the worksheet specifies. It is 
therefore imperative that the actual equipment layout at any given site be measured to verify that 

the cameras and trigger are located at the desired locations relative to each other. If necessary, 
move the camera/trigger positions until the distances required in the worksheet are met. If it is not 

possible to move the equipment to the required locations, then the impact of any changes to the 
subsequent image processing must be assessed. Enter the actual camera locations into the Input 

section of the JAI worksheet and then note the changes in the Results section. If there are any 
questions about the suitability of a specific camera/trigger layout, contact your JAI representative 

for advice. 

In order to carry out the alignment properly, the ENSetup program has to be configured with two 

values from the worksheet. See the ENSetup Program User’s Guide (Video Window Setup section) for 
details on changing Video Window properties. 

Using the ENSetup program, make sure the “tilt line” and “plate num cols” items on your Portable 
Setup computer are exactly the same as the measurements, including the proper plate size 
parameters measured in Section 4.1.4, “Validate the Installation Geometry,” on page 32. All other