00191297-02.pdf - 第258页

6 Vision functions User Manual S-23 HM 6.6 Test Component Software Version SR.405.xx 05/ 99 Issue 256 Synthetic ball mo del repr esentation 6 in pixel resoluti on on th e lefthand edge of the video image 6 A descri ption…

User Manual S-23 HM 6 Vision functions

Software Version SR.405.xx 05/99 Issue 6.6 Test Component

255

Points marked with red plus signs (+): 6

outside the circle:

Contrast < 0, ball is darker than the background 6

within the circle:

Contrast > 0, ball is lighter than the background 6

Points marked with yellow minus signs (-): 6

The difference between the plus and minus signs represents

the radial tolerance. 6

2. Ball-driven mode 6

See Section 6.6.4.14 on page 273 for a definition of the measuring methods. 6

The method works with high precision and is thus suitable for precisely determining the position

of all defined balls. As a higher precision search, ball mode will follow grid mode. 6

This measurement method can be identified 6

– by the synthetic model being shown in pixel resolution at the lefthand edge of the video image,

– by there being a window around every ball (separate window) or

Procedure: 6

All of the balls defined in the package form file are surveyed. Geometric criteria are used here in

the selection of the window mode: 6

– If the balls are relatively far apart the separate window mode will be selected. The default win-

dow mode is the separate window mode.

Window: 6

dark blue: Over a single ball in each case (separate window) 6

Over a row or over all balls (combined window) 6

Cross: 6

white: Measured ball candidates which are defined in the package form file. 6

Crosshairs: 6

white: Results of position recognition -> x and y angles 6

Star: 6

white: Position of the component 6

6 Vision functions User Manual S-23 HM

6.6 Test Component Software Version SR.405.xx 05/99 Issue

256

Synthetic ball model representation 6

in pixel resolution on the lefthand edge of the video image 6

A description will be found in the Grid-driven mode section. 6

6.6.4.5 Store image Option

NOTE 6

You cannot click on this option until a package form number has been loaded. 6

Fig. 6.6 - 22 Test component menu, Store image option

This menu is used to store the generated video image as a file on the hard disk of the machine

controller. The file name and path are preset to: 6

D:\TMP\MVSBILD.MVS 6

For further analysis at Siemens AG, copy the file from the hard disk of the machine controller onto

a diskette and send it to the PL EA Service Department. 6

User Manual S-23 HM 6 Vision functions

Software Version SR.405.xx 05/99 Issue 6.6 Test Component

257

6.6.4.6 Evaluat. time Option

NOTE 6

You cannot click on this option until a package form number has been loaded. 6

Fig. 6.6 - 23 Test component menu, Evaluat. time option

This option is used to display the evaluation time for a selected component. Once you have acti-

vated the function, the following actions are started: 6

– The measuring procedure is activated.

– The video image appears on the screen

– The evaluation time is overlaid.