A Multi-mode Gyro Moment Adding and Aiming Interface Circuit Adapted to Moving Base Calibration
An interface circuit and multi-mode technology, applied in the field of inertial navigation, can solve problems such as not having constant current source components, achieve data compensation, improve flexibility and adaptability, and ensure working accuracy
Active Publication Date: 2020-08-14
BEIJING INST OF AEROSPACE CONTROL DEVICES
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Problems solved by technology
The traditional design does not have a separate temperature control loop for the constant current source components, and only relies on the bang-bang control inside the component to stabilize the internal temperature of the component
Method used
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Embodiment 1
[0062]Embodiment 1: In order to verify the practicability and correctness of the present invention, multiple sets of gyroscope torque adding modules and aiming interface circuits are tested, and their coarse and fine torque adding functions and stability, off-level leveling functions, data communication, and alignment are tested Switching, constant current source temperature control and other functions can be good. It can realize the combined switching of load mode and torque mode, and the mode of torque mode is flexible. At the same time, according to external torque requirements, the frequency and control logic of the torque control variable can be modified online, and the temperature control point of the constant current source can be modified according to the ambient temperature, which can be used with various systems. Due to the use of high-precision custom constant current source components and external temperature control design loops, its torque-adding accuracy index i...
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The invention discloses a multi-mode gyro torque and aiming interface circuit adapted to calibration of a moving base. The gyro torque and aiming interface circuit comprises a gyro torque module, a star sensor interface module, an FPGA control module, and a platform warming power switching control module. The circuit is mainly used for simulation navigation, self-calibration and aiming of an inertial platform system; and the own precision and reliability of the circuit affect the use precision of the entire platform system. Compared with the traditional gyro torque module with the single function, the multi-mode gyro torque and aiming interface circuit employs an FPGA processor to realize the rough-precise mixed torque; the torque precision is improved by constant-current source temperature control. And the multi-mode gyro torque and aiming interface circuit can also used for realizing functions of data conversion of a serial bus of a star sensor and a parallel bus of a platform circuit box and platform warming power switching control.
Description
technical field [0001] The invention relates to a multi-mode gyroscope torque adding and aiming interface circuit adapted to the calibration of a moving base, which is used for simulating navigation, self-marking and aiming of an inertial platform system in a moving base environment, and belongs to the technical field of inertial navigation. Background technique [0002] The gyro torque adding and aiming interface circuit is an important execution link of the control loop of the platform inertial navigation system. Its torque adding output directly controls the operation of the gyro torquer in the platform, and the stability of the adding torque will directly affect the calibration and aiming of the inertial platform system. Accuracy, which in turn affects the navigation accuracy of strategic weapons. The function of the traditional torque adding circuit is relatively single. There are only simple logic processing circuits and power stage output circuits inside. It can only ...
Claims
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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 李渤弘王二伟张志伟张艳霞
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES