FAQ

USB3 Vision

Which software or SDK can be used for USB3 Vision cameras and GigE Vision cameras?
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USB3 Vision cameras and GigE Vision cameras are GenICam standard cameras.

GenICam standard based “Sentech SDK”, “StViewer” of Sentech SDK can use USB3 Vision cameras and GigE Vision cameras.

How can I make movie on StViewer?
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Please follow below steps:
1. Selects “Start Recording” under “File” on menu.
2. Please specifies below settings, sets file name after select “Add” then select “OK”.
3. Please check movie file is making after acquire image.

File Format AVI1 → Maximum file size: 2GB
AVI2 → Maximum file size: 1TB
Compression Motion JPEG
Uncompressed
Quality Value Quality setting for Motion JPEG (100 is best quality)
Reserve Y Vertical flip image
Frame Rate Frame rate setting for play movie
Maximum Frame Count Per File Maximum Frame Count Per File

 
Please refers settings for time unit.
Example: 5 minutes movie with 30 fps image

File Format AVI1
Compression MPEG
Quality Value 50
Reserve Y False
Frame Rate 30
Maximum Frame Count Per File 9,000

Time of movie calculates by “Maximum Frame Count Per File / Frame Rate”.

How can I confirm camera name and firmware version on StViewer?
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Please follow below step:
Camera name:
Checks “DeviceDisplayName” under “DeviceInforamtion” under “LocalDevice”.

Device version (firmware version):
Checks “DeviceVersion” under “DeviceInformation” under “LocalDevice”.
* GigE Vision camera includes FPGA verison.

How can I set exposure time on StViewer?
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The camera has two exposure modes
OFF: Exposure time is “1 / frame rate setting (second)”, which is longest exposure time to maintain set frame rate.
The exposure time is changed based on frame rate.
Timed: Exposure time specifies by exposure time setting.
Please uses “Timed” exposure mode to specify exposure time manually.

The exposure time can be set by below step.
Exposure time sets manually:
1. Selects “Timed” at “ExposureMode” under “AcquisitionControl” under “RemoteDevice”.
2. Sets exposure time at “ExposureTime” under AcquisitionControl” under “RemoteDevice”.

Exposure time specifies by frame rate (exposure time is “1 / frame rate (second)”):
1. Selects “OFF” at “ExposureMode” under “AcquisitionControl” under “RemoteDevice”.

The frame rate dose not increase even reduce resolution by ROI function on StViewer.
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It is possible to not increase frame rate depending on frame rate setting or exposure time setting.
The exposure time setting has to be set less than “1 / frame rate setting” (second).

Please check below settings to increase frame rata.
1. It is necessary to do NOT acquire image.
2. Sets target frame rate at “AcquisitionFrameRate” under “AcquisitionControl” under “RemoteDevice”
3. Selects “OFF” at “ExposureAuto” under “AcquisitionControl” under “RemoteDevice” to disabled auto exposure function.
    Selects “OFF” or “Timed” at “ExposureMode” under “AcquisitionControl” under “RemoteDevice”
    Sets exposure time that is less than “1 / framer rate setting” at “ExposureTime” under “AcquisitionControl” under “RemoteDevice” when selecting “Timed”.
4. Please check frame rate after acquiring image.

USB camera does not appear on StViewer.
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StViewer cannot use USB2.0 or USB3.0 camera. USB3 Vision camera can use with StViewer.
USB3 Vision camera may not recognize, if driver for USB3.0 host controller on PC does not install, or USB bus power does not enough for USB3 Vision camera.
Please check latest driver for USB3.0 host controller on PC.

Some USB3 Vision cameras are recommending to use external power supply through 6 pin connector.

What is Chunk data?
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The chunk data is added camera setting information that used to acquire image, onto image data.
The image data itself does not include camera settings like exposure time and gain.
The image can analysis with camera settings in chunk data then change camera setting or control other devices.
Only USB3 Vision cameras have chunk data function (2019.01.07)

Chunk data can be enabled by below steps.
1. It is necessary to do NOT acquire image.
2. Selects “True” at “ChunkModeActive” under “ChunkDataControl” under “RemoteDevice” to enabled chunk data function.
3. Selects information that adds as chunk data at “ChunkSelector” under “CHunkDataControl” under “ChunkDataControl”.
4. Selects “True” at “ChunkEnable” under “ChunkDataControl” under “RemoteDevide”, to enabled selected chunk data.

Please refers “Display the Chunk data” at “GrabChunkImage” sample program to confirm chunk data.

How can I confirm frame rate on StViewer?
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The frame rate and image transferring speed are displaying at lower right of StViewer.
Frame rate: XXX[fps]
Image transferring speed: XXX[Mbps]

Please enabled “Status bar” display by below steps when frame rate and image transferring speed do not display at lower right of StViewer.
1. Selects “View” at upper left of StViewer.
2. Selects “Status Bar”.

The image cannot acquire with SDK based program.
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Please acquires image with viewing software of SDK, to make sure camera and environment do not have issue to acquire image.
The SDK based program has some issue, once confirmed camera and environment do not have issue with viewing software of SDK.
Please contact technical support with referenced sample program name, details of issue and error information.

How can I save camera settings onto camera with StViewer?
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The camera settings can save onto with UserSet function.
Please follow below procedure for UserSet function.
 
1. Select “UserSet1” at “UserSetSelector” under “RemoteDevice” – “UserSetControl”.
2. Select “Execute” button at “UserSetSave” then current camera settings save onto UserSet1.
 
When select “UserSet1” at “UserSetDefault” under “RemoteDevice” – “UserSetControl” then camera starts with camera settings on UserSet1.

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