4.1.2. Manipulation Buttons
4.1.2. Manipulation Buttons
Control buttons are used to control functions of HRVision-OCR.
n Settings
This menu is for configuring/managing different functions connected to Hardware (HW). There are seven submenus:
- Camera
The connected camera type, video format, and size are displayed. Click the Image Flip checkbox to grab a vertically inversed image.
- Light Control
Serial communication variables can be set to control lighting.
- Communication
An IP and port can be set for Ethernet communication with a Hyundai robot controller.
- PLC
Configuration and data block can be set for communication through Siemens PLC.
The following Input/Output data block address is fixed. Contact the supplier to add/remove signals.
- OCR Model
Model-specific [Exposure], [Brightness], or [Contrast] can be set.
- Password
Password can be changed. Contact the supplier for the default password.
- File Management
The Image save cycle and deleting time can be set to OK or NG while recognizing characters. Deleting data can overload the system, so it is recommended to set the deleting time when the robots don’t work.
Image files can be saved in [BMP], [PNG], or [JPG] formats. The number of database records can be limited.
n Grab
If a camera is connected, the image is grabbed once and displayed in the Image Display Window.
n Live
If a camera is connected, the continuous image is displayed in the Image Display Window.
n Exposure
There are three types of exposure modes:
- Registered Exposure
Image will be grabbed with the exposure for font registration.
- Auto Exposure
The exposure level is automatically changed for the brightness of the image for font registration and the current one to be similar. Up to five images can be grabbed in this mode.
- User Exposure
Images will be grabbed with the exposure defined in the OCR Model menu.
n Tool
- Setting window to register fonts by models. Detailed functions will be explained in 4.2
n Search
If a font is registered for the model, an image is grabbed and then the characters are recognized.
n Load Image
A dialog window will be displayed to load images, and an image of the selected [BMP] file will be displayed in the Image Display Window.
n Save Image
Grabbed images will be stored in the Image Display Window.
Image files will be stored in the [Date Folder] of“C:/HRVision-OCR/Image”, with a file name, including the execution time and model name.
n Display Option
Additional information will be displayed for image and result outputs.
- Center Guide Line
A Guide Line will be displayed in the center of the Image Display Window, as shown below:
- OCR Score
The match rate will be displayed on top of recognized characters during character recognition.
- OCR Confidence
Confidence will be displayed on top of recognized characters during character recognition.
Confidence is a variable to show the degree of similarity with other characters.
- OCR Area
The area of characters will be displayed on top of the recognized characters during character recognition.
- OCR Search Region
If a fond model is registered, a defined search area will be displayed in orange for both Grab and Live.
n Data Backup
All data in the Data folder will be saved in a new execution time folder in “C: /HRVision-OCR/Backup”. Here is an example of [Backup Data].
n Database
A search window is displayed for error and measured database.
Searched data can be displayed with the “Microsoft Excel” program.
n Manual/Auto
The Manual/Auto modes can be switched. In Auto mode, all the buttons are not available, but it can be controlled only through communication with a PLC or robot controller.