Eurotech PCN-1001, Руководство пользователя

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WinClient PCN-1001 User manual
65
PCN-1001_UserMan_En_4.0
Saving the records of the log file
By clicking the “Save records” button you will be able to download the log file as text. You will be given the option
to “Save As” – “ filename.txt” .
NOTE:
The PCN-1001 can record a maximum of 300,000 log lines.
When the PCN-1001 exceed the amount of 299,999 log lines the internal software will overwrite the oldest
block of 30,000 lines with the new data, leaving the remaining 30,000 x 9 lines already recorded.
In this case the system will continue to cancel and rewrite each successive block of 30,000 lines
It is possible to use the Mini USB 1.1 client connector located on the front side of the PCN-1001 in order to
transfer data (i.e. to a Host PC).
The “Scene background” button
This is an important parameter that has to be properly set to obtain a reliable counting process.
The acquisition and storage of the background is a fundamental and sensitive issue.
A bad background acquisition can affect seriously the counting process.
IMPORTANT NOTE:
Acquire the background in the following circumstances:
• Once the PCN-1001 has been installed
• When the PCN-1001 has been relocated
• If the background has altered
Pay attention to the following issues:
• The background has to be taken with no foreign removable objects in the detection area
• The background has to be taken with doors open, especially if the doors would block the PCN-1001s’
field of view as frequently occurs within buses or trains
• Lighting of the detection area should be diffused as much as possible. No spot lighting (e.g. solar
reflections or strong lighting) should be present in the detection area during background acquisition
• Highly reflective, geometric structures situated on or near the floor, such as the metallic parts for door
mechanisms, which cause extreme patterns of light and darkness when illuminated by strong light (e.g.
direct sunlight or directional halogen lighting) could lead to flawed distance measurements. To avoid
performance degradation due to these effects the structures and any high reflective surface should be
avoided as much as possible in the detection area
• Metallic or shiny objects (such as handles, bars, glass, etc.) should not cover a significant part of the
detection area. If this is not avoidable, the reflectivity of these items should be reduced by means of
non-reflective materials or modifying the “No Tracking Zone”.
Follow these steps to save the background:
1. Connect the PCN-1001 by pressing the “Connect” button
2. Select “8bit Disp. + FPN + ODC” in the drop-down list. In this way Windows 1 and 2 will display the
separated images as seen by the two cameras, subtracting the Fixed Pattern Noise (FPN) and the Optical
Distortion Correction (ODC). Window 3 will display the disparity map and a median filter will be applied for
reducing noise
3. Ensure the doors of the gate are open!