Method for improved visualization of dynamic values displayed in a digital format

• US 20100066743A1
• Filed: 09/17/2008
• Published: 03/18/2010
• Est. Priority Date: 09/17/2008
• Status: Abandoned Application

• Current Assignee: Komatsu America Corporation (Komatsu)
• Original Assignee: Komatsu America Corporation (Komatsu)
• Inventors: Fortmann, Gustavo Adolfo
• Application Number:
  US12/232,430
• Publication Number:
  US 20100066743A1
• Time in Patent Office: Days
• US Class Current: 345/440.100
• CPC Class Codes: G01P 1/07 Indicating devices, e.g. for remote indication indicating working conditions of vehicles G07C5/00

Abstract

A method is provided for improved visualization of digitally displayed values that change rapidly, based on the human ability to perceive only a certain amount of change within a specific time-frame. The changes to the value are displayed so that, whenever possible, only one digit changes within the time-frame thought to be ideal for a user to perceive the change of a single digit. The actual value displayed will follow the true value as closely as possible, hence, in most cases, only the digit that moves the displayed value closest to the true value will trigger a change during a perception time frame. If the true value stops changing, the displayed value will, by this fashion, completely catch up with the true value in a prompt manner and exactly match it. If the true value oscillates rapidly, the oscillation will only be displayed to the extent that it allows the viewer to perceive the changes. Only the amount of change that can be perceived is actually shown, thus greatly improving the readability of digital displays.

Claims

1. A method for updating a numerical value of a variable displayed on a display unit, for which any digit position of possible digits of the numerical value is referred to as a test digit position, wherein said method comprises:

identifying a numerical value currently displayed on the display unit;

determining an amount of time that has elapsed since the numerical value currently displayed on the display unit was displayed on the display unit;

obtaining a current numerical value of the variable; and

determining an absolute difference between the numerical value currently displayed on the display unit and the current numerical value of the variable;

wherein the test digit position is assigned a minimum update delay, the minimum update delay assigned to the test digit position being a value to be compared to the determined amount of time that has elapsed since the numerical value currently displayed on the display unit was displayed on the display unit,

wherein the test digit position is assigned a magnitude threshold value, the magnitude threshold value assigned to the test digit position being a value to be compared to the determined absolute difference between the numerical value currently displayed on the display unit and the current numerical value of the variable, and

wherein, if the determined amount of time that has elapsed since the numerical value currently displayed on the display unit was displayed on the display unit is equal to or greater than the minimum update delay assigned to the test digit position, and the determined absolute difference between the numerical value currently displayed on the display unit and the current numerical value of the variable is equal to or greater than the magnitude threshold value assigned to the test digit position, then an updated numerical value is generated that replaces the numerical value currently displayed on the display unit, the updated numerical value being based on the obtained current numerical value of the variable.

2. The method according to claim 1, wherein the method is a cyclical method that causes the numerical value currently displayed on the display unit to be repeatedly updated.

3. The method according to claim 2, wherein the minimum update delay assigned to the test digit position varies according to the order of magnitude of the test digit position.

4. The method according to claim 3, wherein the magnitude threshold value is a fixed value according to the order of magnitude of the test digit position.

5. The method according to claim 3,

wherein the magnitude threshold value of the test digit position has two fixed values, the two fixed values being a first value and a second value,

wherein a magnitude threshold reset time is designated, the designated magnitude threshold reset time being compared to a determined length of time that has elapsed since the magnitude threshold value was set to the second value, and

wherein the magnitude threshold value changes from the second value to the first value after the magnitude threshold reset time has elapsed.

6. The method according to claim 2, wherein the minimum update delay assigned to the test digit position is the same regardless of the order of magnitude of the test digit position.

7. The method according to claim 6, wherein the magnitude threshold is a fixed value according to the order of magnitude of the test digit position.

8. The method according to claim 6,

wherein the magnitude threshold value of the test digit position has two fixed values, the two fixed values being a first value and a second value,

wherein a magnitude threshold reset time is designated, the designated magnitude threshold reset time being compared to a determined length of time that has elapsed since the magnitude threshold value was set to the second value, and

wherein the magnitude threshold value changes from the second value to the first value after the magnitude threshold reset time has elapsed.

9. The method according to claim 2, wherein the minimum update delay assigned to the test digit position is the same for at least two of the possible digit positions.

10. The method according to claim 9,

wherein the magnitude threshold value has two fixed values, the two fixed values being a first value and a second value, and

wherein the magnitude threshold value switches between the first value and the second value.

11. The method according to claim 2, wherein the magnitude threshold value is a fixed value according to the order of magnitude of the test digit position.

12. The method according to claim 2,

wherein the magnitude threshold value has two fixed values, the two fixed values being a first value and a second value, and

wherein the magnitude threshold value switches between the second value and first value.

13. The method according to claim 2, wherein digits of the updated numerical value are controlled such that at least one digit position having a lower order of magnitude than the test digit position is set to zero.

14. The method according to claim 1, wherein digits of the updated numerical value are controlled such that at least one digit position having a lower order of magnitude than the test digit position is set to zero.

15. The method according to claim 2, wherein the test digit position changes during the cyclical method.

16. The method according to claim 15, wherein the minimum update delay assigned to the test digit position is dependent upon the order of magnitude of the test digit position.

17. The method according to claim 16, wherein the magnitude threshold value is a fixed value according to the order of magnitude of the test digit position.

18. The method according to claim 16,

wherein the magnitude threshold value of the test digit position has two fixed values, the two fixed values being a first value and a second value,

wherein a magnitude threshold reset time is designated, the designated magnitude threshold reset time being compared to a determined length of time that has elapsed since the magnitude threshold value was set to the second value, and

wherein the magnitude threshold value changes from the second value to the first value after the magnitude threshold reset time has elapsed.

19. The method according to claim 15, wherein the minimum update delay assigned to the test digit position is the same regardless of the order of magnitude of the test digit position.

20. The method according to claim 19, wherein the magnitude threshold is a fixed value according to the order of magnitude of the test digit position.

21. The method according to claim 1, wherein the updated numerical value is the numerical value of the variable rounded to the same order of magnitude as the test digit position.

22. The method according to claim 2, wherein the updated numerical value is the numerical value of the variable rounded to the same order of magnitude as the test digit position.