Concept of Processing Speed
Calculating the required processing speed and the maximum number of inspections
The following case assumes that targets are fed intermittently and the line stops for a specific period when one target arrives in front of the camera and then moves to bring the next target.
If, for example, you want to know how many targets can be inspected within a minute, you can calculate it from the processing speed of the vision system.
Maximum number of inspections per minute = 60 seconds/Processing time of the vision system in seconds
Example: When the vision system's processing speed is 20 ms, the maximum number of inspections per minute can be calculated as: 60 s/0.02 s = 3000/minute. (= 50/second)
Since the processing speed of a vision system depends on its capability and settings, you should confirm it using actual targets and settings.
A simple inspection can be processed within about 20 to 100 ms.
Conversely, if you know the desired inspection speed, you can use the following formula:
|Required vision system processing speed||(ms) = 1/Desired number of inspections per second x 1000|