Motor control method, motor control device and camera

• US 10,142,537 B2
• Filed: 12/18/2015
• Issued: 11/27/2018
• Est. Priority Date: 01/08/2015
• Status: Active Grant

• Current Assignee: Vivotek, Inc.
• Original Assignee: Vivotek, Inc.
• Inventors: Hsieh, Kuo-Yeh, Kuo, Yi-Cing
• Primary Examiner(s): Ye, Lin
• Assistant Examiner(s): Bhuiyan, Fayez A
• Application Number:
  US14/973,747
• Publication Number:
  US 20160205316A1
• Time in Patent Office: 1,075 Days
• CPC Class Codes: G05B 19/402 characterised by control arrangements for positioning, e.g. centring a tool relative to a hole in the workpiece, additional detection means to correct position G05B19/19 takes precedence
• CPC Class Codes: G05B 2219/41329 Dc motor
• CPC Class Codes: G05D 3/00 Control of position or direction G05D1/00 takes precedence; numerical control to execute positioning G05B19/18
• CPC Class Codes: H04N 23/58 Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors
• CPC Class Codes: H04N 23/62 Control of parameters via user interfaces
• CPC Class Codes: H04N 23/66 Remote control of cameras or camera parts, e.g. by remote control devices
• CPC Class Codes: H04N 23/69 Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming

Abstract

A motor control method includes steps of receiving a plurality of control commands through an input unit; driving a motor module to control a moving mode of an object according to the control commands by a processing unit, such that the motor module generates a plurality of coordinate information relative to the moving mode; collecting the control commands from the input unit and collecting the coordinate information from the motor module by the processing unit; and driving the motor module to reproduce the moving mode of the object according to the control commands and the coordinate information by the processing unit.

Claims

1. A motor control method comprising steps of:

receiving a plurality of control commands through an input peripheral;

driving a motor module to control a moving mode of an object according to the control commands by a processing unit, such that the motor module generates a plurality of coordinate information relative to the moving mode;

collecting the control commands from the input peripheral and collecting the coordinate information from the motor module by the processing unit; and

driving the motor module to reproduce the moving mode of the object according to the control commands and the coordinate information by the processing unit;

wherein each of the control commands comprises a command actuating time, a command executing time, a moving speed and/or a moving direction, the processing unit calculates a moving distance corresponding to each of the control commands according to the coordinate information, and the processing unit selectively merges some of the control commands and the coordinate information;

wherein the motor module has a delay information and the step of the processing unit selectively merges some of the control commands and the coordinate information comprises steps of;

calculating a delay threshold according to the moving speed of an i-th control command of the control commands and the delay information by the processing unit, wherein i is a positive integer; and

when the moving distance corresponding to the i-th control command is smaller than the delay threshold, merging the i-th control command and an (i+1)-th control command to be a merged command by the processing unit, wherein a moving distance corresponding to the merged command is equal to a sum of the moving distance corresponding to the i-th control command and the moving distance corresponding to the (i+1)-th control command.

2. The motor control method of claim 1, wherein the processing unit calculates a moving speed of the merged command by an equation below:

3. The motor control method of claim 2, further comprising step of:

when the moving speed of the merged command is between two predetermined speeds of the motor module, driving the motor module with the predetermined speed close to the moving speed of the merged command by the processing unit.

4. The motor control method of claim 1, wherein the step of the processing unit selectively merges some of the control commands and the coordinate information comprises steps of:

when the moving speed of a j-th control command of the control commands is equal to zero and the moving distance corresponding to the j-th control command is larger than zero, merging the j-th control command and a (j−

1)-th control command to be a merged command by the processing unit, wherein a moving speed of the merged command is equal to the moving speed of the (j−

1)-th control command, wherein j is a positive integer; and

when executing the merged command, driving the motor module to move the object to an end coordinate of the j-th control command with the moving speed of the merged command by the processing unit.

5. The motor control method of claim 1, further comprising steps of:

calculating a moving threshold according to the moving speed of a k-th control command of the control commands and the delay information by the processing unit, wherein k is a positive integer;

when the moving distance corresponding to the k-th control command is larger than a predetermined threshold, driving the motor module to move the object with the moving speed and the moving direction of the k-th control command by the processing unit; and

after keeping executing the k-th control command until a remaining moving distance corresponding to the k-th control command is smaller than or equal to the moving threshold, the processing unit driving the motor module to move the object to an end coordinate corresponding to the k-th control command with the moving speed of the k-th control command.

6. The motor control method of claim 1, wherein the step of the processing unit selectively merges some of the control commands and the coordinate information comprises steps of:

calculating a moving threshold according to the moving speed of an n-th control command of the control commands and the delay information by the processing unit, wherein n is a positive integer; and

when a remaining moving distance corresponding to the n-th control command is smaller than the moving threshold, the processing unit merging the n-th control command and an (n+1)-th control command to be a merged command, wherein a moving distance corresponding to the merged command is equal to a sum of the remaining moving distance corresponding to the n-th control command and the moving distance corresponding to the (n+1)-th control command.

7. The motor control method of claim 1, further comprising step of:

modifying at least one of the control commands and the coordinate information by the processing unit, so as to drive the motor module to reproduce the moving mode of the object after modification.

8. A motor control method comprising steps of:

receiving a plurality of control commands through an input peripheral;

driving a motor module to control a moving mode of an object according to the control commands by a processing unit, such that the motor module generates a plurality of coordinate information relative to the moving mode;

collecting the control commands from the input peripheral and collecting the coordinate information from the motor module by the processing unit; and

driving the motor module to reproduce the moving mode of the object according to the control commands and the coordinate information by the processing unit;

wherein each of the control commands comprises a command actuating time, a command executing time, a moving speed and/or a moving direction, the processing unit calculates a moving distance corresponding to each of the control commands according to the coordinate information, and the processing unit selectively merges some of the control commands and the coordinate information;

wherein the step of the processing unit selectively merges some of the control commands and the coordinate information comprises steps of;

when the moving speed of a j-th control command of the control commands is equal to zero and the moving distance corresponding to the j-th control command is larger than zero, merging the j-th control command and a (j−

1)-th control command to be a merged command by the processing unit, wherein a moving speed of the merged command is equal to the moving speed of the (j−

1)-th control command, wherein j is a positive integer; and

when executing the merged command, driving the motor module to move the object to an end coordinate of the j-th control command with the moving speed of the merged command by the processing unit.

9. The motor control method of claim 8, wherein the motor module has a delay information and the step of the processing unit selectively merges some of the control commands and the coordinate information comprises steps of:

calculating a delay threshold according to the moving speed of an i-th control command of the control commands and the delay information by the processing unit, wherein i is a positive integer; and

when the moving distance corresponding to the i-th control command is smaller than the delay threshold, merging the i-th control command and an (i+1)-th control command to be a merged command by the processing unit, wherein a moving distance corresponding to the merged command is equal to a sum of the moving distance corresponding to the i-th control command and the moving distance corresponding to the (i+1)-th control command;

wherein the processing unit calculates a moving speed of the merged command by an equation below;

10. The motor control method of claim 9, further comprising step of:

when the moving speed of the merged command is between two predetermined speeds of the motor module, driving the motor module with the predetermined speed close to the moving speed of the merged command by the processing unit.

11. The motor control method of claim 8, wherein the motor module has a delay information and the motor control method further comprises steps of:

calculating a moving threshold according to the moving speed of a k-th control command of the control commands and the delay information by the processing unit, wherein k is a positive integer;

when the moving distance corresponding to the k-th control command is larger than a predetermined threshold, driving the motor module to move the object with the moving speed and the moving direction of the k-th control command by the processing unit; and

after keeping executing the k-th control command until a remaining moving distance corresponding to the k-th control command is smaller than or equal to the moving threshold, the processing unit driving the motor module to move the object to an end coordinate corresponding to the k-th control command with the moving speed of the k-th control command.

12. The motor control method of claim 8, wherein the motor module has a delay information and the step of the processing unit selectively merges some of the control commands and the coordinate information comprises steps of:

calculating a moving threshold according to the moving speed of an n-th control command of the control commands and the delay information by the processing unit, wherein n is a positive integer; and

when a remaining moving distance corresponding to the n-th control command is smaller than the moving threshold, the processing unit merging the n-th control command and an (n+1)-th control command to be a merged command, wherein a moving distance corresponding to the merged command is equal to a sum of the remaining moving distance corresponding to the n-th control command and the moving distance corresponding to the (n+1)-th control command.

13. The motor control method of claim 8, further comprising step of:

modifying at least one of the control commands and the coordinate information by the processing unit, so as to drive the motor module to reproduce the moving mode of the object after modification.

14. A motor control method comprising steps of:

receiving a plurality of control commands through an input peripheral;

driving a motor module to control a moving mode of an object according to the control commands by a processing unit, such that the motor module generates a plurality of coordinate information relative to the moving mode;

collecting the control commands from the input peripheral and collecting the coordinate information from the motor module by the processing unit; and

driving the motor module to reproduce the moving mode of the object according to the control commands and the coordinate information by the processing unit;

wherein each of the control commands comprises a command actuating time, a command executing time, a moving speed and/or a moving direction, the processing unit calculates a moving distance corresponding to each of the control commands according to the coordinate information, and the processing unit selectively merges some of the control commands and the coordinate information;

wherein the motor module has a delay information and the motor control method further comprises steps of;

calculating a moving threshold according to the moving speed of a k-th control command of the control commands and the delay information by the processing unit, wherein k is a positive integer;

when the moving distance corresponding to the k-th control command is larger than a predetermined threshold, driving the motor module to move the object with the moving speed and the moving direction of the k-th control command by the processing unit; and

after keeping executing the k-th control command until a remaining moving distance corresponding to the k-th control command is smaller than or equal to the moving threshold, the processing unit driving the motor module to move the object to an end coordinate corresponding to the k-th control command with the moving speed of the k-th control command.

15. The motor control method of claim 14, wherein the step of the processing unit selectively merges some of the control commands and the coordinate information comprises steps of:

calculating a delay threshold according to the moving speed of an i-th control command of the control commands and the delay information by the processing unit, wherein i is a positive integer; and

when the moving distance corresponding to the i-th control command is smaller than the delay threshold, merging the i-th control command and an (i+1)-th control command to be a merged command by the processing unit, wherein a moving distance corresponding to the merged command is equal to a sum of the moving distance corresponding to the i-th control command and the moving distance corresponding to the (i+1)-th control command;

wherein the processing unit calculates a moving speed of the merged command by an equation below;

16. The motor control method of claim 14, wherein the step of the processing unit selectively merges some of the control commands and the coordinate information comprises steps of:

calculating a moving threshold according to the moving speed of an n-th control command of the control commands and the delay information by the processing unit, wherein n is a positive integer; and

when a remaining moving distance corresponding to the n-th control command is smaller than the moving threshold, the processing unit merging the n-th control command and an (n+1)-th control command to be a merged command, wherein a moving distance corresponding to the merged command is equal to a sum of the remaining moving distance corresponding to the n-th control command and the moving distance corresponding to the (n+1)-th control command.

17. The motor control method of claim 14, further comprising step of:

modifying at least one of the control commands and the coordinate information by the processing unit, so as to drive the motor module to reproduce the moving mode of the object after modification.

18. A motor control method comprising steps of:

receiving a plurality of control commands through an input peripheral;

driving a motor module to control a moving mode of an object according to the control commands by a processing unit, such that the motor module generates a plurality of coordinate information relative to the moving mode;

collecting the control commands from the input peripheral and collecting the coordinate information from the motor module by the processing unit; and

driving the motor module to reproduce the moving mode of the object according to the control commands and the coordinate information by the processing unit;

wherein each of the control commands comprises a command actuating time, a command executing time, a moving speed and/or a moving direction, the processing unit calculates a moving distance corresponding to each of the control commands according to the coordinate information, and the processing unit selectively merges some of the control commands and the coordinate information;

wherein the motor module has a delay information and the step of the processing unit selectively merges some of the control commands and the coordinate information comprises steps of;

calculating a moving threshold according to the moving speed of an n-th control command of the control commands and the delay information by the processing unit, wherein n is a positive integer; and

when a remaining moving distance corresponding to the n-th control command is smaller than the moving threshold, the processing unit merging the n-th control command and an (n+1)-th control command to be a merged command, wherein a moving distance corresponding to the merged command is equal to a sum of the remaining moving distance corresponding to the n-th control command and the moving distance corresponding to the (n+1)-th control command.

19. The motor control method of claim 18, wherein the step of the processing unit selectively merges some of the control commands and the coordinate information comprises steps of:

calculating a delay threshold according to the moving speed of an i-th control command of the control commands and the delay information by the processing unit, wherein i is a positive integer; and

when the moving distance corresponding to the i-th control command is smaller than the delay threshold, merging the i-th control command and an (i+1)-th control command to be a merged command by the processing unit, wherein a moving distance corresponding to the merged command is equal to a sum of the moving distance corresponding to the i-th control command and the moving distance corresponding to the (i+1)-th control command;

the processing unit calculates a moving speed of the merged command by an equation below;

20. The motor control method of claim 18, further comprising step of:

modifying at least one of the control commands and the coordinate information by the processing unit, so as to drive the motor module to reproduce the moving mode of the object after modification.