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TfwCamera is designed to interface to a machine-mounted camera to display live images and to capture and record images and video. Video recording can be triggered manual or by the PLC. Typically, PLC code is provided to trigger recording at the start of a weld cycle and stop recording when the cycle is complete. Still image (snapshot) storage can be triggered manually.

Camera

The camera used is usually an IP camera connected to the machine EtherNet network. The connection uses rtsp (real-time streaming protocol) to receive a video stream from the camera. It's also possible to connect to a DirectShow camera, such as a USB or internal camera on a PC.

TfwCamera currently supports two types of IP cameras, Hikvision and Axis. Both these camera support Pan/Tilt/Zoom which can be controlled from TfwCamera. It's a fairly simple matter to change the configuration to suit other IP cameras.