Vision sensing is the use of computerized imaging and interpretation through optical devices and processors for the purpose of industrial control.
Machine
Vision
The process by which a vision sensor synthesizes an image is very similar to how an average human sees: by acquiring an external input, converting it to the processor’s “language,” and then interpreting the input in order to deliver an appropriate output.
When used in the right applications, vision systems can result in improved productivity and quality in your manufacturing process.
Pictured to the right are some state of the art Banner Vision
System components.
Some examples of applications might be:
Error
Proofing
 | Inspection: detect feature presence
Machine Vision |
| Verification: look at an assembly process |
| Recognition: find feature by color, date code, lot code |
| Identification: identify feature by color, size, or shape |
| Location analysis: orient the next step in a process |
In todays world there are two types of vision sensing systems:
Error Proofing
One Piece Sensor
The vision sensor can combine the camera and microprocessors into one unit or separate them into two distinct units. The vision sensor has a breadth of inputs and outputs as well as a fully functional vision tool set used to solve a variety of applications.
The one-piece sensor has the camera, processor, and I/O in one
package and offer the following advantages:
| Convenience |
| Simplicity of wiring and mounting
Machine Vision |
Two Piece Sensor
The high-end PC-based vision systems tie a camera to a PC through a frame grabber card. These systems offer the ability to provide custom solutions to a vision application, and are capable of sophisticated computational ability.
The two-piece vision sensors separate the camera and a processor (controller)
unit, and offer these advantages:
| More I/O |
| Camera with smaller dimensions than a one-piece sensor |
Why use vision?
-
Improved product quality.
Studies have shown that at best human inspectors can only inspect
about 80% of the product.
-
Reduced production costs. Using
vision sensors earlier in the production process will catch
defective parts earlier and eliminate any more value from being
wasted on that part.
-
Increased process control.
Verify that all parts of an assembly are present before moving the
assembly on to the next step.
-
Greater customer satisfaction.
By producing a more consistant product your end customer will be
happier.
-
Machine vision
necessity. There are some applications that exist where the
only way to make it work is with a vision system tied to a robot.
You decide, is your
quality good enough?
What if your quality
level were 99.9%?
In the U.S., that would equate into 200,000 wrong prescriptions; unsafe drinking water for an hour a month; no TV for 10 minutes a week; and 96 airplane crashes per 100,000 flights (just three days of U.S. flights).
Why is ATSI
an Integrator of Vision Systems?
We get asked why we
integrate vision systems. Our answer is:
Sometimes you can’t just put the camera on a machine and make it do vision.
Sometimes you have to change material handling to make it work.
That's where we come
in, we have Material Handling experts, and we have Vision experts,
who better?
