Cursor image detection comparison and feedback status determination method

A cursor image detection comparison and feedback status determination method, based on a non-invasive data-extraction system architecture, and using an image processing unit to read a cursor image of an operation screen outputted by a machine controller and perform detection and comparison on the cursor image, and the cursor image detection comparison and feedback status determination method comprising:

• (A):
• obtaining a cursor foreground image set by a user;
• (B):
• obtaining a cursor background image set by the user;
• (C):
• selecting an algorithm to process the foreground image and the background image, to generate a cursor mask;
• (D):
• reading the cursor image, and apply the cursor mask on the cursor image to perform pattern comparison;
• and
• (E):
• providing information of a comparison result and a cursor feedback status,
• wherein the step (E) of using the image processing unit to provide the cursor feedback status, further comprises:
• (E01):
• starting to move the cursor;
• (E02):
• waiting for a report of the image processing unit indicating that the cursor status is stable, or determining whether a time of waiting the report exceeds a preset waiting time;
• (E03):
• determining whether the cursor is found, and when the cursor is found, executing a step (E04), and when no cursor is found, executing a step (E10);
• (E04):
• determining whether the cursor has multiple positions, and when the cursor has multiple positions, executing a step (E05), otherwise, executing a step (E06);
• (E05):
• providing a warning message indicative of the cursor having multiple positions, and executing a step (E06);
• (E06):
• determining whether the position of the cursor is correct, and when the position of the cursor is correct, executing a step (E07), otherwise, executing a step (E15);
• (E07):
• determining whether multiple cursors are found, and when multiple cursors are found, executing a step (E08), otherwise, executing a step (E09);
• (E08):
• providing a warning message indicative of multiple cursors, and executing a step (E09);
• (E09):
• determining that the cursor is moved successfully;
• (E10):
• determining whether the execution of cursor detection is first time, and when the execution of cursor detection is first time, executing a step (E11), otherwise, executing a step (E12);
• (E11):
• performing cursor compensation, and executing the step (E02);
• (E12):
• obtaining information of positional information of previous movement of the cursor, and executing a step (E13);
• (E13):
• determining whether the execution of cursor detection is second time or third time, and when the execution of cursor detection is second time or third time, executing a step (E14), otherwise, executing a step (E16);
• (E14):
• moving the cursor back to a zero position and then to a target position, and executing the step (E02);
• (E15):
• determining whether a number of retrying the cursor detection reaches a preset value, or the time of trying the cursor detection exceeds the waiting time, and if yes, executing the step (E07), otherwise, repeating the step (E11);
• (E16):
• waiting for the report of the image processing unit indicating that the cursor status is stable, or determining whether the time of waiting the report exceeds the preset waiting time, and executing a step (E17);
• (E17):
• moving the cursor to a safe area, and executing a step (E18);
• (E18):
• waiting for the report of the image processing unit indicating that the cursor status is stable, or determining whether the time of waiting the report exceeds the preset waiting time, and executing a step (E19);
• (E19):
• obtaining the positional information of the previous movement of the cursor, and executing a step (E20);
• (E20):
• determining whether the cursor is found, and when no cursor is found, executing a step (E21), otherwise, executing a step (E22);
• (E21):
• providing an error message indicative of no cursor being found;
• (E22):
• determining whether there is a difference between the positions of previous two movements of the cursor, and when there is a difference between the positions of the previous two movements of the cursor, executing a step (E23), otherwise, executing a step (E24);
• (E23):
• providing an error message indicative of being unable to control the cursor;
• and
• (E24):
• providing an error message indicative of losing cursor position.