Method for preventing inertial platform frame from rolling over
An inertial platform and frame technology, which is applied in directions such as navigation through speed/acceleration measurement, can solve problems such as internal connection damage, inertial platform damage, and inertial platform unusability, and achieve simple results
Active Publication Date: 2013-05-29
上海航天控制工程研究所
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Problems solved by technology
Frame rollover means damage to the inertial platform. Some sensitive components inside the platform are damaged under strong external torque. Because the frame rolls over at a large angle, a large number of internal connections are torn, and the inertial platform cannot be used. Repairing is equivalent to reproducing a new set. inertial platform
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[0016] The frame rolling phenomenon caused by the misoperation of the inertial platform during the electrical test, the performance of the built-in components of the platform, the quality of the external test equipment, etc. will occur irregularly due to the above reasons and cannot be predicted and controlled. The frame rollover phenomenon can protect the platform from damage, which provides conditions for further finding the real cause and taking measures.
[0017] Such as figure 1 As shown, it is the functional block diagram of the circuit for the anti-rollover technology of the inertial platform, and the implementation steps of the method are explained according to the figure:
[0018] 1. Equipped with hardware resources of inertial platform
[0019] Equip the corresponding hardware resources on the inertial platform. The platform automatic test system completes the power distribution of the inertial platform and the normal closed-loop work of the servo system in the ine...
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The invention discloses a method for preventing an inertial platform frame from rolling over. The main point is that during a test of the inertial platform, in case of accident, power-off protection can be realized within the required time to prevent damage of precise sensitive devices and lines in the inertial platform caused by rapid rollover of the frame. Compared with the prior art, the method has the following beneficial effects: the method is jointly developed based on the realization of an automatic test system of the inertial platform and is nested in the automatic test system of the inertial platform; and corresponding protection mechanism can be independently molded and designed and can independently work in match with the corresponding inertial platform. The physical calculation and the realization of the method are both based on the self model and characteristics of the inertial platform and the corresponding functions are realized by hardware. The response time is ensured and the outside interference is avoided.
Description
technical field [0001] The invention relates to launch vehicle platform technology, in particular to an anti-frame rollover protection method in an inertial platform automatic test system of a launch vehicle. Background technique [0002] As we all know, the current inertial platform is the heart of the spacecraft, which plays a decisive role in the inertial navigation and attitude control of the spacecraft, and directly affects its flight accuracy. Since the inertial platform is a platform structure composed of a frame, the inertial platform has many precision inertial devices, amplifiers, etc. built in, the structure is complex, the external environment has a great influence on it, and the signal interference between various test instruments and equipment is relatively large. Therefore, the existing inertial platform frame rollover often occurs during electrical testing, which is mainly caused by misoperation, performance of built-in devices on the platform, and quality of...
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IPC IPC(8): G01C21/18
Inventor 陈巍徐家国谢飞
Owner 上海航天控制工程研究所