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Acceleration sensor data processing method based on stabilized numerical integration

An acceleration sensor and data processing technology, applied in the direction of speed/acceleration/shock measurement, speed/acceleration/shock measurement equipment testing/calibration, instruments, etc., can solve the problem of less application research of the stabilized numerical integration method, and achieve suppression Effects of drift, accurate speed

Pending Publication Date: 2021-12-10
NANJING UNIV OF SCI & TECH
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Problems solved by technology

However, there are still few studies on the application of the stabilized numerical integration method in acceleration integration.

Method used

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  • Acceleration sensor data processing method based on stabilized numerical integration
  • Acceleration sensor data processing method based on stabilized numerical integration
  • Acceleration sensor data processing method based on stabilized numerical integration

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Embodiment Construction

[0050] The present invention proposes a kind of accelerometer data processing method based on stabilizing numerical integration, and its basic idea is as follows:

[0051] First, preprocess the collected raw data of the acceleration sensor. The processing methods include Kalman filtering and calibration of the acceleration sensor parameters;

[0052] Then, the Simpson method based on the stabilization numerical integration is used to modify the traditional acceleration integral critical stability system to construct the stabilization integration system;

[0053] Finally, the built stabilized integral system is used to integrate the preprocessed acceleration sensor data once to obtain the velocity, and the second integral to obtain the displacement, and the error analysis of the integral result is carried out by using the acceleration integral error evaluation index.

[0054] Acceleration sensor data preprocessing

[0055] The acceleration sensor is one of the core components ...

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Abstract

The invention discloses an acceleration sensor data processing method based on stabilized numerical integration. The method comprises the following steps of: firstly, carrying out Kalman filtering and acceleration sensor parameter calibration on collected original data of an acceleration sensor; secondly, adopting a Simpson method based on stabilization numerical integration to correct a transfer function of an acceleration integration critical stability system, and constructing a stabilization integration system; and finally, carrying out primary integration on the preprocessed acceleration sensor data by utilizing the constructed stabilizion integration system to obtain speed, carrying out secondary integration to obtain displacement, and carrying out error analysis on an integration result by utilizing an acceleration integration error evaluation index. According to the acceleration sensor data processing method, a traditional numerical integration method based on the Simpson method is improved, and result drifting generated by multiple times of integration of acceleration data can be effectively restrained by means of the characteristics of a stable system.

Description

technical field [0001] The invention belongs to the technical field of sensor signal detection and data processing, in particular, an acceleration sensor data processing method based on stabilized numerical integration. Background technique [0002] The acceleration sensor has high reliability, wide measurable frequency, and can be directly rigidly connected to the structure to be measured, and the installation position does not need to be stationary relative to the structure to be measured. Compared with directly measuring velocity and displacement, it is easier to measure acceleration and then integrate to obtain velocity and displacement. Therefore, the use of acceleration sensors to measure velocity and displacement information is widely used in military and civil engineering practices. For example, in the military field, the use of acceleration sensors to contact the vibration acceleration of the muzzle when firing cannons is used to obtain the muzzle vibration displace...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/00G06F17/11G06F17/16
CPCG01P21/00G06F17/11G06F17/16
Inventor 孔筱芳罗红娥夏言顾金良栗保明
Owner NANJING UNIV OF SCI & TECH
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