Whenever
I look at someone else’s machine vision implementation I find
myself thinking how I’d have done the job. Inevitably, I see that a
different camera might have offered advantages, or perhaps a lens
seems too user-accessible. In most cases though, design decisions
were taken for sound reasons, often that had little to do with the
elegance of the solution.
To
illustrate this let’s take a look at two competing inspection
products. These are the Bizerba
BVS
and the recently announced Mettler-Toledo
V6300 Series.
Both are intended for package inspection in the food and beverage
industries, and they show some interesting differences in philosophy.
Both
have the product fed on conveyors, use touchscreens and are designed
to be easily reconfigured for different packages, but the camera
technology is different. While Bizerba go with a linescan approach
Mettler-Toledo use multiple matrix cameras.
Which
is the right approach? That’s hard to say. I suspect Bizerba’s
linescan systems are more robust than those from Mettler, and
definitely easier to configure. On the other hand, the Mettler system
seems less expensive.
As
a buyer, how would I choose between them? By testing. Lot’s and
lots of testing. And customer references, if I could get them.
As
I said above, there’s always more than one way.
1 comment:
I believe the wrong products are being compared. The Mettler Toledo CLS is a more comparable system to the Bizerba BVS.
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