Gyroscope static calibration method
A calibration method and gyroscope technology, applied in the field of data processing, can solve the problems of difficult and stable operation of gyroscope remote control equipment, mass production, long cycle and high production cost, and achieve the effects of convenient and fast development, good quality and automatic production.
Inactive Publication Date: 2013-04-24
SHENZHEN OKL TECH +2
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[0003] When producing gyroscope-related products, such as gyroscope remote controllers, 3D mice, etc., it is necessary to go through a complex data calibration process for the gyroscope; at the same time, in different environments, the data of the gyroscope will vary greatly due to temperature. Changes, resulting in difficult stable operation and mass production of gyroscope remote control equipment, resulting in high production costs and long cycles
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[0020] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0021] refer to figure 1 , a gyroscope static calibration method, the method comprises the following steps:
[0022] S1. Read the static data of the gyroscope and the ambient temperature parameters;
[0023] The static data is the three-axis angular velocity of the gyroscope, and the three axes are X, Y, and Z axes respectively.
[0024] For example, when the gyroscope model is ITG3205, put the gyroscope on the horizontal plane at rest, then pass the I 2 The C bus reads the data of the internal registers 0x1B, 0x1D, 0x1F and 0x21 of the gyroscope, and the corresponding data of the internal registers 0x1B, 0x1D, 0x1F and 0x21 of the gyroscope are 16-bit output data TEMP_OUT_H / L, GYRO_XOUT_H / L, GYRO_YOUT_H / L And GYRO_ZOUT_H / L, that is, the ambient temperature parameters measured by the internal sensor of the gyroscope and the angular velocities i...
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The invention discloses a gyroscope static calibration method which includes the following steps: S1 reading gyroscope static data and an environment temperature parameter; S2 judging whether data jitter exists in the read gyroscope static data or not, if no, carrying out the step S1, if yes, recording the value of the data jitter, and carrying out a step S3; S3 carrying out data compensation on the static data according to the recorded the value of the data jitter and the read environment temperature parameter; S4 storing data-compensated static data and a corresponding environment temperature parameter in a storage unit. The static data are collected in real time, a temperature sensor is matched to continually collect and count the static data, initial data of a gyroscope are automatically calibrated, production equipment is enabled to flexibly deal with change of environment temperature, automatic production is achieved, meanwhile, the product of the gyroscope is enabled to be good in quality, high in accuracy, convenient and fast to develop, and easy to popularize. The gyroscope static calibration method can be widely applied to the field of data processing.
Description
technical field [0001] The invention relates to the field of data processing, in particular to a static calibration method for a gyroscope. Background technique [0002] The gyroscope is used to measure the angular velocity signal. By integrating the angular velocity, the angle value can be obtained. However, due to factors such as temperature changes, friction, and unstable torque, the gyroscope will produce drift errors. The static data of the gyroscope means that when the gyroscope is in a static state, there is relatively fixed data, which can be obtained by external devices by reading the gyroscope data. [0003] When producing gyroscope-related products, such as gyroscope remote controllers, 3D mice, etc., it is necessary to go through a complex data calibration process for the gyroscope; at the same time, in different environments, the data of the gyroscope will vary greatly due to temperature. As a result, the gyroscope remote control equipment is difficult to opera...
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Inventor 罗喜平曹昱升
Owner SHENZHEN OKL TECH