Issue
What does a reader have to send through one serial interface to allow proper interpretation of data from the camera box ?
Clarification: note that with camera, I mean the actual picture taking camera. Camera box is the electronic that processes the image sent by the camera mentioned one sentence before. This camera box sends via serial interface (RS232) strings to the controller.
Description
Multiple windows have 2 meanings here:
- You get multiple windows because you have more than 1 camera
- With 1 single camera you can detect more than one object of interest (up to 4), for example a OCR and a barcode
How does the controller differentiate between cameras and between windows ?
Between same camera: with a period
Between 2 cameras: first number of string
Message through Serial Interface Axode 180 mode GT
1543210987654.82.345.21<CR><LF>
^^ ^ ^ ^4th window cam 1
^^ ^ ^ 3rd window cam 1
^^ ^ 2nd window in cam 1
^^ 1st window cam 1
^ camera number 1
Camera 1 sends results of o4 windows. Window 1 might be an OCR (543210987654) which you may want to compare back to a database. Windows 2 might be a static reading (82) which you may want to compare back to fixed text. Windows 3 might be a limit or grading (345) which you may want to check if it is between 300 and 400. Windows 4 might be again a limit (21).
28423432435<CR><LF>
^^ 1st window cam 2
^ camera number 2
Message through Serial Interface Standard reader
15432109876548234521<CR><LF>
^^ ^ ^ ^4th window cam 1 : 21. Enter position 18, lenth 2
^^ ^ ^ 3rd window cam 1: 345. Enter position 15, lenth 3
^^ ^ 2nd window in cam 1: 82. Enter position 13, lenth 2
^^ 1st window cam 1: 543210987654. Enter position 1, lenth 12
^ camera number 1
Camera 1 sends results of o4 windows. Window 1 might be an OCR (543210987654) which you may want to compare back to a database. Windows 2 might be a static reading (82) which you may want to compare back to fixed text. Windows 3 might be a limit or grading (345) which you may want to check if it is between 300 and 400. Windows 4 might be again a limit (21).
Likewise, the 2nd camera just send a 2 in front.
28423432435<CR><LF>
^^ 1st window cam 2
^ camera number 2
