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Half-physical emulation test system for controlling and guiding, navigating and controlling soft landing for moon

A semi-physical simulation and test system technology, applied in general control systems, control/regulation systems, non-electric variable control, etc., can solve problems such as unverified 3D imaging and translational obstacle avoidance control strategies

Active Publication Date: 2008-02-13
BEIJING INST OF CONTROL ENG
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AI Technical Summary

Problems solved by technology

The test verified navigation sensors including distance measurement, speed measurement and IMU, but did not verify the 3D imaging and translational obstacle avoidance control strategy during the hovering process.

Method used

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  • Half-physical emulation test system for controlling and guiding, navigating and controlling soft landing for moon
  • Half-physical emulation test system for controlling and guiding, navigating and controlling soft landing for moon
  • Half-physical emulation test system for controlling and guiding, navigating and controlling soft landing for moon

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Experimental program
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Embodiment Construction

[0027] 1. Specific design and implementation of key components

[0028] (1) Three-axis mechanical turntable 10

[0029] The three-axis mechanical turntable 10 is used to simulate the three-axis attitude movement of the lander, and the attitude angle and attitude angular velocity information of the turntable movement is calculated by the gyro measurement model in the simulation computer 11 to simulate the attitude output of the gyro. The embodiment of the present invention will utilize the existing French imported three-axis mechanical turntable of the unit.

[0030] (2) External navigation sensor

[0031] The external navigation sensor includes a distance measuring and speed measuring target simulator 6 , a range finder 7 , a speed meter 8 and a laser imaging sensor 9 .

[0032] Due to the limitation of the space of the simulation laboratory, the rangefinder 7 and the speedometer 8 cannot directly measure the lunar surface sand table screen. The present invention receives t...

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Abstract

A semi-physical simulation testing system of moon soft-land guidance, navigation and control consists of a three-dimensional translation analog module, a three-dimensional turning analog module, a control computer, a simulation computer and a ground survey and master-control computer. The three-dimensional translation analog module and the three-dimensional turning analog module adopt a practicality modeling. Wherein, the three-dimensional translation analog module is used to imitate an orbit motion of a lander relative to the moon surface. A sand table of the moon surface is used to imitate ground features of the moon. The three-dimensional turning analog module is used to imitate an attitude motion of the lander. And other well-developed regular sensors, executing agencies, lander dynamics and kinematics can be replaced by accurate mathematical models built up by the computer. Compared with mathematical simulation, the system can make a GNC proposal and algorithm more effectively and truly verified. Compared with full-practicality analogue system, the system has advantages of low development costs and easy operation.

Description

technical field [0001] The invention relates to a lunar soft landing guidance, navigation and control (GNC) semi-physical simulation test system, which can be used to verify the lunar soft landing GNC scheme and algorithm. Background technique [0002] In the 1960s and 1970s, Apollo and Surveyor of the United States and Luna of the Soviet Union successively realized soft landing missions on the moon. Entering the 21st century, the world’s aerospace field once again set off a climax of lunar exploration. How to design a set of lunar soft landing guidance, navigation and control schemes and make them effective verification has become the key to the success of lunar soft landing. With the further development of mathematical simulation technology, most of the GNC algorithms of earth satellites based on conventional sensors can be effectively verified through mathematical simulation. As for the soft landing detection with the moon as the center gravitational body, its gravity fi...

Claims

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Application Information

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IPC IPC(8): G05B17/02G05D1/00
Inventor 张锦江王鹏基关轶峰何英姿王大轶李骥黄翔宇
Owner BEIJING INST OF CONTROL ENG
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