VI User Manual - 第199页

Tools library Vision 2007 4.10 User Manua l Rev 01 7 - 37 7.8.2 Custom tab The Cu stom tool is based on the QFP tool. When opening the custom edit page, all th e treatment areas are automatically placed a ccording to the…

Tools library

7 - 36 Vision 2007 4.10 User Manual Rev 01

7.8 Custom

The Custom tool is available in the library to inspect automatically exotic SO and QFP components or

connectors. To inspect solder joints and bridges on components with a different number of pins, with

pins of different size and position and color:

 You can set different parameters for each pin.

 You can test and active each pin individually.

The component detection is made in 2 steps:

 Body detection.

 Leads detection.

After finding the precise component position, each joint and bridge inspection tool is automatically

placed. This tool can be used for multizones components (the only difference is the body detection).

7.8.1 Model description tab

Follow this procedure to easily program a

component.

1. Draw a synthetic image with Build Model

Type 2. You can still program a custom

model if you do not have any synthetic

image.

2. When opening the custom edition, enter

all the component features in the oppo-

site window.

3. On the Model description tab, in the

Edit a model window, click on the

button. The bmp file name to add in picture list window appears. Select the image on which

load the treatment.

4. Click on Edit area button to define the component size.

5. Choose the treatment operation: Custom, a new tab appears (with the inspection tool name)

behind the Model description tab.

The Custom tool is based on the QFP tool. When opening the custom edit page, all the treat-

ment areas are automatically placed according to the component features. You just have to

check that these parameters fit on real components.

Load a real image on the camera display and adapt the parameters.

You can just create regular SO

and QFP on this interface.

When you create a Custom, use the encompassing rectangle dimension to initialize

Custom tool dimension.

When you use synthetic model, click on

Auto area button to define the component

size.

Tools library

Vision 2007 4.10 User Manual Rev 01 7 - 37

7.8.2 Custom tab

The Custom tool is based on the

QFP tool. When opening the custom

edit page, all the treatment areas are

automatically placed according to the

component features.

Check that these parameters fit on

real components.

Load a real image on the camera dis-

play and adapt the parameters.

7.8.3 Body detection

7.8.3.1 Algorithm

If one of these 3 steps fails, the

component is missing.

Missing

component

Missing

component

Missing

component

Return Theta

Angle

detection

fails ?

Return X

Width

detection

fails ?

Return Y

Height

detection

fails ?

Yes

Custom

Tools library

7 - 38 Vision 2007 4.10 User Manual Rev 01

7.8.3.2 Parameters

Tick Active processing (A) to active the

component body detection.

In Body color (B) select the color of the

component body (dark or bright).

Select the Light level (C) used for the

body detection.

In Angle detection section, define the pa-

rameters for the component angle detec-

tion. The body angle detection is done

with an helicopter Edge:

Select the Side (D) of the component you

want to use for the angle detection.

Offset XY, Width and Length (E) of the

edge window.

Angle and Step (F) of rotation for the ro-

tating edge.

Contrast and Filter Half-size (G) edge

tool parameters for detection.

In Width and Height detection sections,

define the parameters for the component

width and height detection.

Expected width and Tolerance (H) of the

body width.

Contrast and Filter Half-size ( I ) edge tool parameters for detection.

Offset XY, Width and Length (J) of the edge window.

Press TEST (K) button to execute the 3 previous detections and see the results.

Expert mode (L) allows to access all parameters of this window. If this window is not

ticked, only some parameters are displayed.

The width and height body detection are done with 2 double transitions edges.

The edge windows are realigned with the results of the previous step (the 1st

step is the Angle detection).

A B

Custom