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PTZ control method and device

A technology of control device and pan/tilt, which is applied in control system, motor generator control, TV, etc. It can solve the problems of monitoring scene deviating from the target area of ​​monitoring, motor out of step, and no solution proposed.

Active Publication Date: 2019-06-18
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, some accidental or malicious damage, such as artificially forcing the motor to stall or other reasons lead to stalling, resulting in motor out-of-step, because the existing technology cannot detect the out-of-step of the motor in time and solve the problem of out-of-step, resulting in monitoring The scene deviates from the target area of ​​monitoring, making it impossible for the camera to capture pictures from normal angles
[0004] For the above problems, no effective solution has been proposed

Method used

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  • PTZ control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] figure 1 A pan-tilt control device provided in this embodiment, such as figure 1 As shown, the motor 101 for controlling the rotation of the pan / tilt is included, and the device also includes:

[0023] The absolute encoder 102 is used to obtain the initial position information of the pan / tilt head, and obtain the real-time position information of the pan / tilt head after the motor performs a control action.

[0024] Wherein, the control action includes: controlling the motor to rotate or stand by.

[0025] It should be noted that the absolute encoder can be a Hall sensor or a photoelectric encoder, which can detect the angular displacement of the motor at 360 degrees. The absolute encoder can collect the initial position information and real-time information of the motor according to the acquisition signal of the main processor. Position information, and send the acquired real-time position information and initial position information to the main processor. The motor in this em...

Embodiment 2

[0049] image 3 It is a method of controlling the PTZ according to this embodiment, such as image 3 As shown, the execution subject of this embodiment may be the above Figure 1 to Figure 2 The described PTZ control device, the method includes:

[0050] Step S302: Acquire the initial position information of the pan-tilt.

[0051] Step S304: After the motor executes the control action, obtain real-time position information of the pan / tilt.

[0052] Wherein, the control action includes: controlling the motor to rotate or stand by.

[0053] Step S306: Read the initial position information and the real-time position information, and determine whether to control the motor to perform a predetermined action corresponding to the control action according to the initial position information and the real-time position information.

[0054] It should be noted that the initial position information in this embodiment can be the position information after the motor is powered on, or it can be the po...

Embodiment 3

[0070] Figure 4 Is a PTZ control method provided according to this embodiment, such as Figure 4 As shown, the method includes the following steps:

[0071] Step S401: The pan / tilt control device receives the control signal, and controls the motor to execute the control action corresponding to the control signal.

[0072] Wherein, the control action includes a standby action or a rotating action.

[0073] When the motor performs a standby action, perform steps S402 to S405;

[0074] When the motor performs a rotating action, steps S406 to S410 are executed.

[0075] Step S402: The pan / tilt control device obtains the initial position information of the motor at the initial moment of standby.

[0076] Step S403: The pan / tilt control device obtains real-time position information of the motor after performing the standby action.

[0077] Step S404: The pan / tilt control device determines that the difference between the real-time position information and the initial position information of the...

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Abstract

The invention discloses a cradle head control method and device. The cradle head control device comprises a motor used for controlling a cradle head to rotate, an absolute encoder and a main processor, wherein the absolute encoder is used for obtaining initial position information of the cradle head and acquiring real-time position information of the cradle head after the motor executes a control action, and the control action comprises controlling the motor to rotate or stay at a standby state; and the main processor is used for reading the initial position information and the real-time position information, and determining whether to control the motor to execute a predetermined action corresponding to the control action or not according to the initial position information and the real-time position information. The cradle head control method and device disclosed by the invention solve a technical problem of step out of the motor.

Description

Technical field [0001] The invention relates to the field of pan / tilt control, in particular to a method and device for pan / tilt control. Background technique [0002] As the security industry continues to mature today, various pan-tilt cameras are constantly appearing. Now, most of the horizontal and vertical motors of the pan / tilt are all stepper motors, and they all have their own zero switch. They monitor the target areas of various places in different postures (ie, horizontal and vertical angles). [0003] However, some accidental or malicious breaks, such as artificially forcing the motor to stall or other reasons, cause the motor to lose step. Because the prior art cannot detect the motor out of step and solve the out of step problem in time, it leads to monitoring The scene deviates from the monitored target area, making it impossible for the camera to take pictures at a normal angle. [0004] In view of the above-mentioned problems, no effective solutions have yet been pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18H04N5/232H02P8/38
Inventor 刘重斌
Owner HANGZHOU HIKVISION DIGITAL TECH
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