Why are embedded cameras smart for industrial automation and optical sorting?
In high throughput machinery and production lines, where several images of products are needed to classify size, quality, etc., a camera with a high frame count and instant image processing is an essential requirement. This keeps the throughput up and the footprint of the machine down.
The time spent in sending data around in a machine starts to matter because the product will move quite far and must be tracked until a decision is made, regarding what needs to happen to the product.
For instance, imagine products moving with 0.3m/s, 40 (8Mpx) images are taken of the product as it rotates over a distance of 1m FOV (field of view) to get images of the entire surface of it.
Using Gigabit Ethernet (approx. 100Mbyte/s) the maximum fps would be approx. 12.5 fps (100Mbyte/ 8Mbyte), before the product leaves the camera view. To obtain the required 40 images, the machine would, therefore, need to be slowed down to less than 0.1m/s