创建组件识别数据的方法.pdf - 第142页

142/178 IM-SMT-VSNDI C-0002 -000 The ta rget object i s binarized, then the component is detected from the detec ted target object. This m ode can be used for recognition of the irregular shaped com ponents. It is possib…

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Figure 117
In the example of actual recognition shown in
Figure 118
, the lead section and the body
section are separated by using the “Cut Outer Noise” function.
Figure 118
It is possible to perform recognition on horizontally placed components. In this case, the data
should be set to the E-W direction not to the N-S direction.
2.12.3-4. Mark 4
This algorithm is used to recognize components whose shape consists of four parts, as
shown in
Figure 119
.
Figure 119
This part cannot
be seen clearly.
“Cut Outer Noise”
function is used
Separate
the two
objects.
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The target object is binarized, then the component is detected from the detected target object.
This mode can be used for recognition of the irregular shaped components.
It is possible to use the fixed threshold and the automatic threshold for binarization.
White objects are normally recognized, but it is also possible to detect black objects on
a white background.
[Recognition check items]
Items Yes / No Notes
Body Size Yes
Lead pitch No
Lead width No
Lead length No
Lead position No
Table 96
<< Mark 4: Items to be set for components consists of four parts >>
(Special components: Special shape, algorithm: Special 2, base Alignment Type: Mark type)
Items to be set Set value
Explanation
Alignment Group Special
Alignment Type Special
Comp. Threshold
Sets the binarization level.
(If 0 is specified, the threshold is set
automatically.)
Comp. Tolerance Specifies the tolerance as a percentage.
Search Area (mm) Sets the range of the detection.
Body Size X (mm) Sets the size of the outer edge.
Body Size Y (mm) Sets the size of the outer edge.
Body Size Z (mm) Sets the size of the outer edge.
Cntr. Offset X (mm)
Sets the offset amount in the X direction
from the center position.
Cntr. Offset Y (mm)
Sets the offset amount in the Y direction
from the center position.
Cntr. Offset R (mm)
Sets the offset amount of the angle of
rotation.
Ruler Width 3 Not used.
Algorithm Special 3
Base Alignment As Mark
Vision Option 1
Vision Option 2
Vision Option 3
Common
Data
Vision Option 4
*1
Specifies the priority to perform “Cut
Inner Noise “/”Cut Outer Noise” function
and the object type.
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Items to be set
Set
value
Explanation
Lead Group N 2
Common
Ruler Offset N 0
Lead Number: 1N 1
Reflect LL.: 1N (mm)
*2
Sets the length of the lead on
the upper left side.
Lead Width: 1N (mm)
*2
Sets the width of the lead on the
upper left side.
Lead Pitch: 1N (mm) 0.0
Find Pos X: 1N (mm)
*3
Sets the Find Pos X of the lead
on the upper left side.
Group
1
Find Pos Y: 1N (mm)
*3
Sets the Find Pos Y of the lead
on the upper left side.
Lead Number: 2N 1
Reflect LL.: 2N (mm)
*2
Sets the length of the lead on
the upper right side.
Lead Width: 2N (mm)
*2
Sets the width of the lead on the
upper right side.
Lead Pitch: 2N (mm)
Find Pos X: 2N (mm)
*3
Sets the Find Pos X of the lead
on the upper right side.
N
direction
Group
2
Find Pos Y: 2N (mm)
*3
Sets the Find Pos Y of the lead
on the upper right side.
Lead Group S 2
Common
Ruler Offset S 0
Lead Number: 1S 1
Reflect LL.: 1S (mm)
*2
Sets the length of the lead on
the upper left side.
Lead Width: 1S (mm)
*2
Sets the width of the lead on the
upper left side.
Lead Pitch: 1S (mm) 0.0
Find Pos X: 1S (mm)
*3
Sets the Find Pos X of the lead
on the upper left side.
Group
1
Find Pos Y: 1S(mm)
*3
Sets the Find Pos Y of the lead
on the upper left side.
Lead Number: 2S 1
Reflect LL.: 2S (mm)
*2
Sets the length of the lead on
the upper right side.
Lead Width: 2S (mm)
*2
Sets the width of the lead on the
upper right side.
Lead Pitch: 2S (mm) 0.0
Find Pos X: 2S (mm)
*3
Sets the Find Pos X of the lead
on the upper right side.
S
direction
Group
2
Find Pos Y: 2S(mm)
*3
Sets the Find Pos Y of the lead
on the upper right side.
Table 97
Note:
The parameters other than those shown in
Table 97
are not used and the value ” 0” should be
set.