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Gyroscope-stabilized monitoring pan-tilt and control method thereof

A gyro stabilization and pan/tilt technology, which is applied to the control using feedback, machine/stand, supporting machine, etc., can solve the problems of normal observation, inability to achieve gyro stabilization control, and difficulty in improving motion accuracy, and achieve high-precision gyro Effect of stabilization function

Pending Publication Date: 2021-08-03
成都鼎信精控科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

You will encounter image shaking caused by the swaying of the base, resulting in the inability to observe normally
[0003] The monitoring products currently on the market, including conventional monitoring pan / tilts, advanced photoelectric balls, UAV pan / tilts, etc., all have many defects, and it is difficult to meet the high-performance applications on ships and vehicles.
For example, although the conventional monitoring pan / tilt has the advantages of mature technology, low cost, good sealing, and wide application, it is difficult to improve the motion accuracy due to the use of stepping motor drive and reducer transmission, even if a gyroscope sensor is added High-precision gyro-stabilized control cannot be achieved

Method used

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  • Gyroscope-stabilized monitoring pan-tilt and control method thereof

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Experimental program
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Effect test

Embodiment 1

[0045] In order to enable the conventional monitoring pan / tilt to realize the high-precision gyro stabilization function on the moving carrier and keep the optical axis stable, this embodiment discloses a gyro-stabilized monitoring pan / tilt, that is, the photoelectric cabin of the conventional monitoring pan / tilt adds A set of gyro-stabilized gimbals that can rotate in a small angle range. Because the gyro-stabilized gimbals are directly driven by brushless motors, they can achieve high stabilization accuracy.

[0046] The gyro-stabilized monitoring pan / tilt provided in this embodiment mainly includes: a monitoring pan / tilt, a gyro-stabilized pan / tilt, and a photoelectric load.

[0047] The photoelectric load described in this embodiment may be a visible light surveillance camera or a thermal imager.

[0048] See figure 1 , the monitoring pan-tilt described in this embodiment is a T-shaped vehicle-mounted pan-tilt. The monitoring pan / tilt includes two photoelectric equipment...

Embodiment 2

[0080] The control method of the gyro-stabilized monitoring pan / tilt provided in this embodiment, its core content is: the gyro-stabilized pan / tilt works within a small angle range, senses the deflection angle through the angle sensor, and then controls the step in the monitoring pan / tilt through the angle deflection amount The motor moves to achieve a large angle range of rotation, while keeping the camera direction of the small-angle stabilized gyro-stabilized gimbal near the neutral position.

[0081] See Figure 4 , a control method for a gyro-stabilized monitoring platform provided in this embodiment, comprising:

[0082] Step 400: Acquiring the monitoring pan-tilt rotation command transmitted from the external console.

[0083] Step 410: Calculate the angular velocity data of the photoelectric load according to the three-axis angular velocity data and the three-axis acceleration data collected by the six-axis inertial sensor.

[0084] Step 420: According to the monitorin...

Embodiment 3

[0096] This embodiment provides a control method for a gyro-stabilized monitoring platform, such as Figure 5 shown, including:

[0097] Step 1. Design the stabilization function of the gyro-stabilized gimbal: when shaking occurs, it can ensure the inertial stability of the camera.

[0098] The gyro stabilization control function is realized by the single-chip microcomputer program in the gyro stabilization control circuit board. First, the three-axis angular velocity and three-axis acceleration data in the six-axis inertial sensor are collected, and then fusion filtering and attitude calculation are performed, and the external control is obtained through the communication interface. The monitoring pan / tilt rotation instruction transmitted by the platform is used as the target value of the angular velocity feedback control. Finally, the angular velocity feedback control algorithm is used to calculate the control amount of each axis motor, and the azimuth axis motor and the pit...

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Abstract

The invention discloses a gyroscope-stabilized monitoring pan-tilt and a control method thereof and relates to the technical field of monitoring. According to the gyroscope-stabilized monitoring pan-tilt, a small-angle and high-precision gyroscope stabilization pan-tilt is additionally arranged in a photoelectric equipment cabin of the monitoring pan-tilt, and small-range optical axis stabilization is realized through the gyroscope stabilization pan-tilt. Meanwhile, based on information collected by a pitch axis angle sensor and an azimuth axis angle sensor of the gyroscope stabilization pan-tilt, stepping motors of the monitoring pan-tilt are driven in a linkage mode to achieve large-range rotation. Therefore, the purpose of high-precision gyroscope stabilization function can be achieved.

Description

technical field [0001] The invention relates to the technical field of video monitoring, in particular to a gyro-stabilized monitoring platform and a control method thereof. Background technique [0002] Based on the needs of national security and market demand, the surveillance industry has developed vigorously, forming a very mature industrial chain, and has applications in various fields. With the expansion of national security to the sea and the urgent need for emergency relief, there are more and more demands for deploying high-performance monitoring systems on mobile carriers; for example, installing pan-tilts on ships and vehicles to observe the target; or install a cloud platform on the top of the erected tower to observe the target several kilometers away. There will always be screen shaking caused by the swaying base, resulting in the inability to observe normally. [0003] The monitoring products currently on the market, including conventional monitoring pan / til...

Claims

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Application Information

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IPC IPC(8): F16M11/12F16M11/18G05D3/12
CPCF16M11/121F16M11/18F16M2200/041G05D3/12
Inventor 焦志涛
Owner 成都鼎信精控科技有限公司