Tracking platform device and tracking method based on MEMS (Micro Electro Mechanical System) gyroscope
A technology for tracking platforms and gyroscopes, applied in directions such as navigation through velocity/acceleration measurement, can solve problems such as heavier load, inability to effectively overcome interference torque, sharp increase in harmful torque, etc., achieve functional excellence, reduce structural design complexity, reduce The effect of small system volume and mass
Inactive Publication Date: 2018-09-11
HUBEI SANJIANG AEROSPACE WANFENG TECH DEV
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Problems solved by technology
The commonly used two-axis two-frame tracking platform places the photoelectric sensor on a platform composed of two mutually orthogonal pitch and azimuth frames. With the development of photoelectric technology, the load increases and the harmful moment increases sharply, which cannot effectively overcome the influence of the disturbance moment. , for stable tracking
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[0020] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0021] A kind of tracking platform device based on MEMS gyro designed by the present invention, such as Figure 1~4 As shown, it includes a first gyroscope 1, a second gyroscope 2, an azimuth frame 3, a pitch frame 4, a detection bracket 5, an optical condenser lens 6, a first DC torque motor 7, a first position sensor 8, an outer Frame 9, the second DC torque motor 10, the second position sensor 11 and the photoelectric sensor 16, the azimuth frame 3 is located in the pitch frame 4, the pitch frame 4 is located in the outer frame 9, and the upper shaft of the azimuth frame 3 passes through the pitch Frame upper bearing 12 is rotatably arranged in the upper azimuth frame installation hole of pitch frame 4, and the lower rotating shaft of azimuth frame 3 is arranged in the lower side azimuth frame installation hole of pitch frame 4 through pitch ...
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The invention discloses a tracking platform device and a tracking method based on an MEMS (Micro Electro Mechanical System) gyroscope. The tracking method comprises the following steps: 1, shooting laser shot by a laser to a target, and irradiating the laser reflected from the target to a photoelectric sensor through an optical condensing lens; 2, carrying out sensing by the photoelectric sensor to acquire information of an azimuth angle and a pitch angle of reflected-back laser spots relative to an optical communication end of the photoelectric sensor when an angle of the target is deviated;sending the angular speed information of the azimuth angle and the angular speed information of the pitch angle to a DSP (Digital Signal Processor) processor separately by the gyroscope; 3, controlling a first direct current torque motor and a second direct current torque motor by the DSP processor according to the information of the azimuth angle and the pitch angle of reflected-back laser spotsrelative to an optical communication end of the photoelectric sensor as well as the angular speed information of the azimuth angle and the angular speed information of the pitch angle, so that the reflected-back laser spots are coaxial to the optical communication end of the photoelectric sensor again. According to the tracking platform device and the tracking method based on the MEMS gyroscope disclosed by the invention, an influence of interfering moment can be effectively overcome, and stable tracking is carried out.
Description
technical field [0001] The invention relates to the technical field of visual axis stabilization, in particular to a MEMS gyroscope-based tracking platform device and tracking method. technical background [0002] In the photoelectric system, the photodetector is used as a spatial position error sensor. When it is installed on a moving carrier, the change of the carrier attitude and the vibration of the carrier will affect the orientation of the detector's visual axis, resulting in a decrease in the tracking performance of the photoelectric system. Therefore, the boresight stabilization technology must be adopted to provide a stable working platform relative to the inertial space, so that the photoelectric system remains stable in the inertial space. The commonly used two-axis two-frame tracking platform places the photoelectric sensor on a platform composed of two mutually orthogonal pitch and azimuth frames. With the development of photoelectric technology, the load increa...
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Login to View More IPC IPC(8): G01C21/18
CPCG01C21/18
Inventor 姜清秀周奂斌黄碧洲王亚飞王超程友信周辉
Owner HUBEI SANJIANG AEROSPACE WANFENG TECH DEV