A10011-ASM-T47-EN-Spec-X-Serie S_DMS.pdf - 第45页

45 SIPLACE Vision Barcode types Technical data The PCB camera can rea d a Data matrix code , a 1D bar- code or a QR code . The data can be used for trace- ability purposes. The barcode can be on the board itself or on a …

SIPLACE Vision

PCB position recognition

Technical Data and Inkspot Criteria

Ink spot criteria

Methods • Synthetic fiducial recognition method

• Mean gray scale value

• Histogram method

• Pattern recognition

Shapes and sizes of fiducials/structures for

Synthetic fiducials

Other methods

For dimensions of synthetic fiducials, see page

Min. 0.3 mm

Max. 5 mm

Masking material Good coverage

Recognition time Depends on the method: 20 ms - 200ms

Description

In the cluster technology

each subpanel is assigned

an inkspot. If this is present

during the measurement via

the PCB vision module, the

corresponding subpanel will

not be populated. This func-

tion helps prevent unneces-

sary costs caused by

placement of defective pan-

els.

Technical data for PCB position detection

PCB fiducials

Local fiducials

Library of bad panel recognition

Up to 3 (subpanels and multiple panels)

Up to 6 for the long board option (optional PCB fiducials

are output by the optimization.)

Up to 2 per PCB (may be of different type)

Up to 255 fiducial types per subpanel

Image analysis Edge detection method (singular feature) based on gray

scale values

Illumination type Front lighting

Fiducial recognition time 0.1 s

Field of vision 5.78 mm x 5.78 mm

Virtual inkspot handler (option)

The virtual inkspot handler allows you to scan in inkspots from an external system. These ink-

spots can then be allocated to the relevant board.

SIPLACE Vision

Barcode types

Technical data

The PCB camera can read a

Data matrix code, a 1D bar-

code or a QR code. The

data can be used for trace-

ability purposes.

The barcode can be on the

board itself or on a compo-

nent. In addition, it is also

possible to attach a barcode

label to a board or a compo-

nent and to then read this

barcode label with the PCB

camera, directly after place-

ment. The focal height must

be taken into account during

reading, if there is a barcode

or barcode label on the top of

a component.

General information for all barcode types

Data Matrix Codes

Ambiguity No read errors are issued if multiple valid barcode symbols are found in a

particular region of interest (ROI). In this case, there is no clear rule, defin-

ing which of these valid barcode symbols would be read.

Ambiguity can be avoided by:

• Using a suitable ROI size

ASCII null characters Barcode information should not contain any ASCII null characters (ASCII

NULL), as the 0 byte in the software is interpreted as an final (end) char-

acter.

Code type Only Data Matrix ECC 200 is supported.

No. rows/columns All combinations of rows/columns as defined in the standard will be

accepted, including rectangular symbols and large symbols with multiple

data areas.

Minimum dot size 5 pixels

Symbol angle All symbol angles will be accepted.

Inverse symbols Inverse symbols (light modules on a dark background) will be accepted.

Mirrored symbols Mirrored symbols will be accepted.

(Station software version 707.1 SP2 or higher required)

Ratio of column width to row

height

1/2

≤ (column width) / (row height) ≤ 2

Region of Interest (ROI) The area in which the barcode is searched for (ROI) should not exceed the

following values:

Width of ROI

≤ 6 * width of barcode symbol

Height of ROI

≤ 6 * Height of barcode symbol

SIPLACE Vision

Barcode types

Technical data

1D Barcodes

QR codes

Code types Code 39

Code 93

Code 128

EAN-8 (AddOn 2, AddOn 5), EAN-13 (AddOn 2, AddOn 5)

Interleaved 2 of 5 (station software version 709.1 or higher required)

Minimum width of bar 5 pixels

If the quality of the mark is sufficient, the width can be reduced down to 3

pixels.

Minimum height of symbol 5% of length of whole symbol.

Symbol angle All symbol angles will be accepted.

Inverse symbols Light bars on a dark background will be accepted.

(Station software version 708.0 or higher required)

Mirrored symbols Mirrored symbols will be accepted.

(this corresponds to a rotation of 180 degrees for 1D codes)

Region of Interest (ROI) The area on the board, in which the barcode is searched for (ROI), should

not exceed the following values:

ROI (direction of reading)

≤ 3 * symbol width

ROI (vertical to direction of reading) ≤ 10 * symbol width

Code type QR code in accordance with ISO/IEC 18004 model 2.

Station software version 711.0 or higher required

No. rows/columns All versions still defined in the standard (i.e. number of rows/columns) are

accepted.

Minimum dot size 5 pixels

Symbol angle All symbol angles will be accepted.

Inverse symbols Inverse symbols (light modules on a dark background) will be accepted.

Mirrored symbols Mirrored symbols will be accepted.

(Station software version 707.1 SP2 or higher required)

Ratio of column width to row

height

1/2

≤ (column width) / (row height) ≤ 2

Region of Interest (ROI) The area in which the barcode is searched for (ROI) should not exceed the

following values:

Width of ROI

≤ 6 * width of barcode symbol

Height of ROI ≤ 6 * Height of barcode symbol