Configuration
Per camera type
File size is what one saved image occupies, including the graphics overlay stored with it — the first figure for a defect image, the second for a pass image. Peak margin is the time between parts at peak rate divided by the time that image takes to upload. At 1x or above no image can collide with the previous upload; below 1x the camera starts dropping images.
How often do you want a reference image?
Export resolution. Half resolution stores each image at a quarter of its file size and quarter resolution at a sixteenth, with a matching reduction in upload time. Graphics overlays stay correctly aligned at every export size because the overlay and the image share one coordinate system, so the trade is image detail rather than annotation accuracy. It is also preferable to JPEG on a fast line, since JPEG compression runs on the camera and adds to cycle time.
Pass image interval. Defect images are usually a small fraction of production and cost little to keep in full. Pass images are the opposite — at high yield they are almost every part. Sampling them is what turns days of retention into months, and past about 1 in 100 the extra storage saved is marginal, so pick the interval that gives operators a recent reference image rather than the largest number available.
What bursty production does to image capture
X axis: burst factor, how much faster parts arrive during a burst than the shift average. Y axis: percentage of selected images that reach the Edge Device. A line averaging 2 parts/sec that actually inspects 2 parts in one second and dwells the next is running at 2.0x. Average throughput is identical, but the camera has half the time between parts, and because it can only hold one image while uploading there is no chance to catch up during the dwell. This is the usual explanation when a line that looks comfortably within budget on paper still loses images.
How this estimate is calculated
Figures assume the Edge Device drive is dedicated to DataPulse. Image capture is modelled from the spacing between parts at the peak rate, so a sustained run of consecutive defects can still fall below the figures shown. Use these numbers for planning and confirm final sizing against the actual line.