Teledyne TS-C2500, Руководство пользователя

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Genie_TS_Series GigE Vision Camera Operational Reference
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Using Transfer Queue Current Block Count with CamExpert
This feature returns the number of frames buffered within the Genie TS pending transfer to the
host system. Image frames are buffered in cases where the host system is temporarily busy or
cases of high network traffic with other devices through the same Ethernet switch. By buffering
image frames, the Genie TS will not need to drop frames when there are temporary delays to the
transfer.
When using CamExpert (in Sapera 7.30 or later), right click on this field and then click on Refresh
from the pop-up menu. The current frame count in the transfer buffer is displayed in the Value
field. During live grab, if the number of frames in the transfer buffer is increasing, then there is a
problem with the network or host bandwidth being exceeded. The ImageLost event occurs when all
buffer space is consumed.
Start – End Command Requirements
Important: Every start command must have a corresponding end command. If not the camera
can be in an unpredictable state. This pertains to DeviceRegistersStreamingStart ,
DeviceRegistersStreamingEnd , DeviceFeaturePersistenceStart , and DeviceFeaturePersistenceEnd .
Creating a Camera Configuration File in the Host
 When using the Teledyne DALSA Sapera SDK – the CCF is created automatically via a save.
 When using a 3
rd
party SDK application, if that SDK supports GenAPI 2.4 , then the process
is automatic. Simply follow the 3
rd
party Save Camera method as instructed. If the SDK is
based on GenAPI 2.3 or lower, the user must call the command
DeviceFeaturePersistenceStart before using the SDK Save Camera method and the
command DeviceFeaturePersistenceEnd at the end of the save function.
Overview of Transfer Control ( TransferControlMode )
Genie TS acquisition transfers operate either in the basic coupled mode or in an independent
decoupled user controlled mode, as described below.
TransferControlMode = Basic
The Basic Transfer Mode provides maximum compatibility with any control application running on
the host computer. In this mode, the host based acquisition program commands the camera to do
a frame grab, send it through the camera’s frame buffer to the camera’s transfer module, where it
is then received by the host. The acquisition rate is limited by the transfer rate to host.
TransferControlMode = UserControlled
The User Controlled Transfer Mode decouples the camera acquisition module from the camera
transfer module and also from the host computer transfer module. The user has total control of
each of the three control modules. Some important points are:
 The acquisition module writes frames into the camera’s circular frame buffer memory. Only
when all buffers are written will the next acquisition overwrite a previously stored image (this
also generates the ImageLost event).
 The camera transfer module is independent of the acquisition. This allows the acquisition to not
be interrupted by any network delays or traffic on the connection with the controlling host
computer.
 The host computer also has independent control of the host transfer module which allows the
host application to optimize receiving image packets along with other tasks running on the
host.