A real-time active automatic calibration pan-tilt control device and method
A technology of automatic calibration and control device, applied in the direction of control using feedback, can solve the problems of inability to realize automatic calibration in time, poor real-time performance, low initiative, etc., to achieve good consistency, improve productivity, and save energy.
Active Publication Date: 2018-03-09
NANJING GMINNOVATION TECH CO LTD
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Problems solved by technology
[0005] 1) Poor real-time performance
Only one photoelectric switch is deployed at the position of 0-360 degrees horizontally. When the device is actually running, the horizontal baffle will not pass the position of the horizontal photoelectric switch for a long time, so automatic calibration cannot be realized in time.
[0006] 2) Low initiative
Method used
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Embodiment Construction
[0028] The invention will be described in further detail below in conjunction with the accompanying drawings.
[0029] Such as figure 2 As shown, the present invention provides a real-time active automatic calibration pan-tilt control device, which includes a horizontal motor, a vertical motor, a horizontal photoelectric switch, a vertical photoelectric switch, a horizontal rotor, a baffle, a vertical rotor and a baffle, a main control board, software control module; the horizontal motor, horizontal rotor and baffle, and horizontal photoelectric switch form a horizontal photoelectric detection component; the vertical motor, vertical rotor and baffle, and vertical photoelectric switch form a vertical detection component; the horizontal photoelectric detection component, vertical The photoelectric detection component transmits detection signals to the main control board through the signal line; the software control module runs on the main control board, and sends control signal...
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The invention discloses a real-time active automatic calibration pan-tilt control device and method. The method includes the following steps: Step 1, the user rotates the pan-tilt, the rotor rotates, and the software program automatically detects whether the photoelectric switch signal is triggered. If the detection exists, enter the step 2. If the detection does not exist, go to step 3. Step 2, reset the timer, and at the same time, the software program compares the actual angle of the pan / tilt rotation with the theoretical angle, and if there is an error, correct it. Step 3: Start timing. If the gimbal is not rotated by the user within the set time, the software program will record the current position and actively rotate the gimbal after the timeout, and proceed to step 4. Step 4, reset the timer, and at the same time, the software program compares the actual angle of the gimbal rotation with the theoretical angle, if there is an error, correct it, and go to step 5. Step 5, restore the gimbal to the position before rotation. The invention can quickly eliminate the accumulated error caused by the rotation of the pan-tilt device, and improves the rotation control precision of the pan-tilt device.
Description
technical field [0001] The invention relates to a real-time active automatic calibration pan-tilt control device and method, belonging to the technical field of mechanical automation control. Background technique [0002] At present, the PTZ control device is often used as an important device to improve the field of vision, and is widely used in high-speed dome cameras in video surveillance, machine vision and intelligent transportation industries. [0003] The rotation of the pan / tilt is controlled by two motors, the horizontal and the vertical, respectively, and long-term operation will cause cumulative errors due to step loss or blockage of the transmission mechanism. For this problem, the current traditional solutions in the industry are as follows: figure 1 As shown, the solution deploys a photoelectric switch in the horizontal direction and vertical direction. When the device is powered on and starts self-test, the horizontal motor rotates 360 degrees. When the baffle...
Claims
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IPC IPC(8): G05D3/12
Inventor 陆国强方汝松王兴国
Owner NANJING GMINNOVATION TECH CO LTD