Panasonic Further refined inspection functions, Smart matching A210 / Matching A110

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!

1Smart matching (A210) / Matching (A110).

AHigh-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

Matching search time: Approx. 10 ms.

DSmart 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

4Rotational* 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)

■Rotational adjustment (A210)

Rotation correction

5Improved binary processing function

AA 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.

		mounts			Reject location
					lit up.
Bearing inspection.		Gear tooth inspection.	LED lighting inspection.
	Free shape
B				Inspection area

BSmart matching (A210).

Sub-pixel position detection takes place with gray-scale matching and the gray- scale differential function gives even more detailed work inspection.

ERotation 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.

Area rotation.
When setting	During adjustment, it is
Affine transform	unnecessary to place work

The shape of the inspection area can be freely	Masking
adjusted between rectangular, oval, or polygonal	area
to match the inspection object. Moreover the
mask area (where no inspection takes place) can
also be adjusted freely as desired.

This gives you accurate inspection even in cases where matching processing alone would fail.

Template	Matching detection	Differential result
-	=	No
		difference
		=OK

FMultiple position detection

Supports the multiple detection function with matching to allow the separate detection of multiple objects of the

Multiple position detection.

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

Base area

CImage 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

Correlation = 0.95

same pattern in the search area. It is an

can take place.

processing.

Noise

Template	Matching detection		Differential result
-		=	Difference
			detected
			=NG

efficient function when loading is performed by robot or the like.

■Accurate position correction (A210/A110)

Detection of	Unnecessary portion
unnecessary portion	not detected.

Original binary image. 3 ⋅ 3 image erosion 3 ⋅ 3 image dilation

Image without filtering

Correlation = 0.85

CSmart 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
	+		+

GTeaching 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.

			▲Filter/width function
	▲No 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.

			Not processed
			Noise erase
Pixel	Eroded parts are not processed	After erosion, dilated parts are processed

Original binary image.	3 ⋅ 3 image dilation	3 ⋅ 3 image erosion
		Image with erosion to
		dilation filtering
		Processing occurs
	Dilated parts are processed.	After dilation, eroded parts are not processed

2Sub-pixel gray-scale edge

3Gray-scale window

6More numerical calculation and judgement output functions.

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.

■Projection scanning edge detection

Averaged

Pitch calculated by number of pins

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:

Direction: OK	Direction: Reject	GW1 becomes brighter than GW2, so
		GW1 - GW2 > 0 and GW3 - GW4 = 0.

A	Supports 96 numerical				B	Leeway in judgement calculations
	calculation formulas (48 on the A110)				Even	for complex pass/fail judgement
Includes sine, cos,					outputs, internal judgment formulae can be
					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,
								Judgement output formula
multiplication and
division, and you can set		Calculating distances					Internal judgement calculations	External judgement calculations	Total
up to 96 formulas (48 for					A210		96 formulae	96 formulae	192 formulae
		and angles
the A110). You can also					A110		48 formulae	48 formulae	96 formulae
reference up to 16 items
per formula for complex			New calculation formula
calculations.				copy function

(also compatible with judgment formulas)

CProgramless 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 data and judgement output results can be automatically written to the data register of the PLC at a maximum baud rate of 115200 bps. The image processing data can be used with the I/O sensitivity of the PLC.

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11/2004

11/2004

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