National Instruments NI-IMAQdx Automobile Accessories User Manual


 
Chapter 2 Basic Acquisition with NI-IMAQdx
© National Instruments Corporation 2-3 NI-IMAQdx User Manual
Camera Name
NI-IMAQdx references all camera sessions by a name. The driver creates
default names for each camera in your system in the order that the cameras
are connected. The names observe the convention shown in Table 2-1.
Every camera has an
.iid interface file and an .icd camera file.
Interface files—Store information about which physical camera is
associated with a camera name. Each interface file can be used by only
a single camera.
Camera files—Store all the configurable attributes. Camera files can
be shared between identical cameras. Use MAX to configure the
default state of a particular camera.
Figure 2-1 shows the relationship between cameras, interface files, and
camera files.
Figure 2-1. Relationship Between Cameras, Interface Files, and Camera Files
Note
Use the Enumerate function to query the number and names of available cameras.
Use the Discover Ethernet Cameras function to find ethernet cameras on the network with
a remote subnet.
Table 2-1. Camera Naming Convention
Camera Name Camera Installed
cam0
Device 0
cam1
Device 1
... ...
cam
n
Device n
Default.icdCam1.iid
MyCam.icdCam0.iid
or