Getting 100 Cameras Aligned Before the Line Stops
A large part with more than 1,000 measurement points can only be fully checked in 75 seconds if nearly 100 cameras fire at once. That part of the problem is familiar from any multi-camera POKA-YOKE scheme. The other half is what this project actually solved: commissioning nearly 100 cameras on site. Industrial simulation moved mounting and imaging verification ahead of arrival, cutting commissioning by nearly 50 percent. The line cycle is 77 seconds and POKA-YOKE accuracy exceeds 99.95 percent, subject to site acceptance results.
Half the cost of a multi-camera system is making it work
Being able to buy the cameras is not the same as being able to bring the system online on schedule. Every camera's mounting position, viewing angle and exposure has to be tried, and that work has to fit inside production stop windows. Unfinished commissioning leaves a rack of brackets, not an inspection system. The hidden cost of multi-camera projects sits mostly in this stretch.
What simulation moves before arrival
Mounting positions, viewing angles and exposure parameters are verified in a virtual environment first, and the site deployment follows the simulated result, leaving calibration and joint debugging for the floor. The premise is that the simulation model matches the real station geometry. If the simulation is off, the site work starts over, which is why model fidelity belongs in the acceptance criteria.
More cameras is not the goal
The cameras are arranged in zones according to point distribution, each responsible for one local area, and the areas are stitched by global calibration into one measuring field over the whole part. Redundancy and field overlap set the robustness: too little redundancy and one failed camera creates a blind area; too much overlap and both calibration effort and compute are wasted. Zone layout is an optimisation, not a count.
Trigger sequence and one coordinate frame
Firing together is more than one signal. The system plans the trigger sequence so cameras with overlapping fields do not interfere, and it brings every camera's data into one coordinate frame. Pose error between cameras accumulates into the point verdict, so calibration accuracy directly sets point localisation accuracy. This is the item to interrogate when comparing quotations: a calibration number without a re-verification interval means very little.
Drift over months
Ambient light and thermal drift affect consistency across 100 cameras. Periodic self-calibration and reference-part checks maintain global accuracy instead of assuming one calibration lasts forever. This point is often skipped in design reviews, yet it decides whether the system is still accurate a year after handover.
77 and 75 seconds, plus the 50 percent
The 77-second cycle against the 75-second full check describes the relationship between cycle and judgment time. The nearly 50 percent commissioning reduction belongs to delivery. Reading them together is what distinguishes a system that can run from a system that can start on time. Both are subject to site acceptance results.
Questions to put to the supplier
How do 100 cameras fire without interfering?
Global calibration plus a planned trigger sequence: cameras own different zones, overlapping fields are sequenced, and data is unified into one frame before judgment.
How do 1,000 points finish in 75 seconds?
All cameras shoot at once and compute in parallel, each handling its own zone, so total time approximates one zone rather than adding up per point.
What does 99.95 percent POKA-YOKE accuracy mean?
That online verdicts match the true state above 99.95 percent of the time, leaving very few escapes and very few false blocks. Figures are subject to site acceptance results.
Why does simulation save nearly half the commissioning?
Most mounting, angle and parameter problems are solved before arrival, leaving calibration and joint debugging on site. That still depends on the model matching the real station.