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Further refined inspection functions.
The A Series is loaded with inspection know how that we have distilled over our years in this industry.
With a single unit you can perform fast and accurate detection, dimension measurement and coordinate detection!
1
Smart matching (A210) / Matching (A110).
A
High-speed, high-precision sub-pixel detection
(Fastest level in its class).
With a high-speed CPU, vast memory, and original algorithm, even with a
64 × 64-pixel template, 256 × 256-pixel search area, and sub-pixel precision
detection, you still get a processing time of
about 10
ms. As you can see, this is
the ultimate in speed and precision for position detection.
Conventional
Approx. 25 ms
instruments
Approx. 10 ms.
A210
Approx. 10 ms.
Matching search time:
B
Smart matching (A210).
Sub-pixel position detection takes place with gray-scale matching and the gray-
scale differential function gives even more detailed work inspection.
This gives you accurate inspection even in cases where matching processing
alone would fail.
Template
Matching detection
Differential result
No
=
difference
-
=
OK
Correlation = 0.95
Template
Matching detection
Differential result
Difference
=
-
detected
=
NG
Correlation = 0.85
C
Smart template (A210).
Just by showing multiple examples of the correct products, correct product
images can be automatically composed. This allows simple inspection without
setting complex parameters.
Smart template
OK
OK
OK
NG
+
+
2
Sub-pixel gray-scale edge
Edge positions are measured accurately at the sub-pixel level. Also supports an
edge counting function. Also equipped with the projection scanning formula so
that the required edge position is detected even with products with a poor
surface. With rotational correction, diagonal scanning performs sub-pixel edge
detection with the gray-scale inter-pixel compensating function.
I Projection scanning edge detection
Averaged
Pitch calculated by
number of pins
6
D
Smart matching rotational correction (A210)
With the rotational correction function and the A210, a search is conducted by
tilting the matching and smart matching search areas and templates. Therefore,
even if the work has been tilted, a more precise position inspection is obtained.
Rotation of the search area
Template is tilted
and searched
E
Rotation position/tilt detection.
With the rotation search function (±30 degrees), no matter how much the
detection image is tilted, the position and angle of tilt are accurately ascertained.
F
Multiple position detection
Multiple position
Supports the multiple
detection.
detection function with
matching to allow the
separate detection of
multiple objects of the
same pattern in the
search area. It is an
efficient function when
loading is performed by
robot or the like.
G
Teaching function.
Teaching allows changes to be made to the template for matching even from an
external signal. Registering the change can be done simply by showing the object
for detection.
Teaching also supports positional corrections so that even when work is
displaced, teaching can occur.
Teaching with the
touch of a button.
3
Gray-scale window
Since the average value for brightness within the area is quickly calculated,
directional distinction can still occur even when binary distinction is difficult due
to the small differences in the gray-scale levels. You can set mask processing
with free shapes (rectangular, oval, polygonal) set to match the inspected object.
GW1 GW2 GW3 GW4
When the direction is correct:
GW1 becomes brighter than GW2, so
Direction: OK
Direction: Reject
GW1 - GW2 > 0 and GW3 - GW4 = 0.
11/2004
4
Rotational* position adjustment function
Automatic adjustment and precise inspection takes place even if the work is tilted
or displaced.
Adjustments can be made using the gray-scale data so that differences in
brightness can allow accurate corrections. With multiple and priority functions,
complex adjustments are also greatly simplified.
*A210 = rotational position adjustment function (X/Y/θ)
A110 = position adjustment function (X/Y)
I Rotational adjustment (A210)
Rotation
correction
Area rotation.
When setting
During adjustment, it is
Affine transform
unnecessary to place work
precisely for reduced time.
Rotation
With the affine transform
function, the image will be
rotated so that even if the work
is tilted, setting and changes
can take place.
I Accurate position correction (A210/A110)
Detection of
Unnecessary portion
unnecessary portion
not detected.
LFilter/width function
LNo filter/width function
Inspection
Erroneous detection
Dirt is ignored
position offset
because of dirt
Filter/width function reduces chance of erroneous influence
due to dirt or noise.
6
More numerical calculation and judgement output functions.
A
B
Supports 96 numerical
Leeway in judgement calculations
calculation formulas (48 on the A110)
Even for complex pass/fail judgement
outputs, internal judgment formulae can be
Includes sine, cos,
made without using the external PLC.
square root, arctan
Depending on the application, Judgement
absolute differential and
output can be set for individual and general
projection distance
judgement for each inspection area freely as
functions in addition to
desired.
addition, subtraction,
multiplication and
division, and you can set
Internal judgement calculations
Calculating distances
up to 96 formulas (48 for
A210
96 formulae
and angles
the A110). You can also
A110
48 formulae
reference up to 16 items
per formula for complex
New calculation formula
New calculation formula
New calculation formula
calculations.
copy function
copy function
copy function
(also compatible with judgment formulas)
(also compatible with judgment formulas)
(also compatible with judgment formulas)
5
Improved binary processing function
A
A wide range of inspection functions
• Position/size/attitude/size detection with optimum feature extraction labeling.
• Presence/size/orientation inspection with optimum binary window functions.
• High-speed dimension measurements with optimum edge detection functions.
• High-speed length/number/presence inspections with optimum line functions.
Reject location
mounts
lit up.
Bearing inspection.
Gear tooth inspection.
LED lighting inspection.
B
Free shape
Inspection area
The shape of the inspection area can be freely
adjusted between rectangular, oval, or polygonal
to match the inspection object. Moreover the
mask area (where no inspection takes place) can
also be adjusted freely as desired.
C
Image filter function.
Even with binary images containing substantial noise,
stable image processing is possible using filter processing
such as [image erosion] → [image dilation].
The filter functions will differ depending on the inspection
processing.
3 × 3 image erosion
3 × 3 image dilation
Original binary image.
Image without filtering
Not processed
Pixel
Eroded parts are not processed
After erosion, dilated parts are processed
3 × 3 image dilation
3 × 3 image erosion
Original binary image.
Image with erosion to
dilation filtering
Processing occurs
Dilated parts are processed.
After dilation, eroded parts are not processed
C
Programless data
transfer to the PLC
Using the Matsushita Electric Works.
FP-series PLC, the Mitsubishi
MELSEC A/FX series PLC, the Omron
SYSMAC C series PLC, or the Allen-
Bradley SLC 500 PLC (Ver. 2.2 or
later), numerical calculation result
Judgement output formula
data and judgement output results
can be automatically written to the
External judgement calculations
Total
data register of the PLC at a
96 formulae
192 formulae
maximum baud rate of 115200 bps.
48 formulae
96 formulae
The image processing data can be
used with the I/O sensitivity of the
PLC.
11/2004
Masking
area
Base area
Noise
Noise erase
7
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