If a computer wants to use a camera, it sends a connection request to that camera. When the camera has signaled that it is available, the system first checks whether the camera has a valid IP address. If it does not, the computer sends a range of valid IP addresses to the camera. The camera picks a free IP address, i.e. one that is not yet in use on the network, from these IP addresses and notifies the computer that the IP address has been assigned.
Fig. 59: GigE uEye camera start-up - flowchart
Connection termination
As soon as the camera is connected to a host PC, it cannot connect to any other computer on the network. When a connection has been successfully established, the host PC also transmits a heartbeat, which is received and evaluated by the camera. If the heartbeat of the host PC cuts out, the camera is restarted and the starter firmware loaded. This allows the camera to connect to another computer on the network.
If the heartbeat of the camera cuts out, the host PC closes the connection and removes the camera from its camera list. Once this has taken place, the camera is no longer displayed in the IDS Camera Manager. This process may take up to three heartbeat periods (see above).
Fig. 60: Flowchart of camera recognition for the GigE uEye HE
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