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Multilevel measurement system for absolute azimuth angle of high-speed moving rope

A measurement system and absolute orientation technology, applied in the direction of measuring device, measuring angle, surveying and navigation, etc., to achieve the effect of high detection accuracy

Inactive Publication Date: 2014-09-03
ENG DESIGN & RES INST OF GENERAL ARMAMENTS DEPT
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  • Multilevel measurement system for absolute azimuth angle of high-speed moving rope
  • Multilevel measurement system for absolute azimuth angle of high-speed moving rope

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[0030] Inclination measuring device 1 includes two universal joints 6, two encoders 7 and steel pipe 8, as shown in Figure 2. two

[0043] Finally, the absolute azimuth angles of sling 9 in the earth coordinate system are α0(t), β0(t) and γ0(t).

[0044] 3) Evaluation accuracy index.

[0046] In summary, the above are only preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention.

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Abstract

The invention discloses a multi-stage measuring system for the absolute azimuth angle of a high-speed moving rope, in order to achieve accurate measurement of the absolute azimuth angle of the detector hanging rope during the rapid movement of the detector in the horizontal direction; the measuring system includes Inclination measurement device and laser gyroscope; the inclination measurement device includes two universal joints, two encoders and steel pipes, and the measurement system is set on both sides of the reel in the fast follow-up system. When the rope is released, the inclination measuring device moves along the axial slide rail with the reel through the steel pipe, and the encoder can obtain the azimuth angle of the lifting rope relative to the disc in real time; the laser gyroscope is used to obtain the real-time attitude of the disc, and the encoder and The laser gyroscope transmits the measurement data to the ground controller through the cable respectively, and the controller calculates the absolute azimuth angle of the suspension rope in the geodetic coordinate system according to the superposition principle.

Description

High-speed motion rope absolute azimuth multi-level measurement system Technical field The invention belongs to the field of aerospace exploration design, be specifically related to a kind of multi-stage measurement of the absolute azimuth angle of high-speed motion rope volume system. Background technique At present, in my country's aerospace program, in order to realize soft landing, probe needs to complete several dynamics over the moon. operations, including: hovering, obstacle avoidance, slow descent, landing, etc. Limited by the thrust of the launch rocket, the lunar probe cannot carry Multi-engine fuel, which requires the entire landing process to be completed in a very short period of time. Therefore, how does the lunar probe in the The effective coordination and accurate completion of these maneuvers over the lunar surface has become a major problem in achieving a soft landing. Before carrying out soft landing, the key dynamics such as " hovering, obstacle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/26G01C1/00
Inventor 吴涧彤王晓明董强程刚方志刚陆乐孙宪旺郭华陈强杨永魁王媛丽
Owner ENG DESIGN & RES INST OF GENERAL ARMAMENTS DEPT
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