Method, device and system for range expansion of inertial sensor

An inertial sensor and range technology, applied in the field of sensors, can solve problems such as high cost and inability to meet sensor selection, and achieve the effect of improving performance and expanding range

Active Publication Date: 2022-07-15
武汉元生创新科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under the premise of ensuring the range and stability, it will lead to the inability to select the sensor type that meets the technical requirements or to choose the inertial sensor with high cost

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  • Method, device and system for range expansion of inertial sensor
  • Method, device and system for range expansion of inertial sensor
  • Method, device and system for range expansion of inertial sensor

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Embodiment Construction

[0031] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same...

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Abstract

The invention provides a method, device and system for expanding the range of an inertial sensor. The method includes: synchronously receiving measurement data of multiple inertial sensors, and establishing an error model of each inertial sensor; wherein, each inertial sensor has different ranges; The Mann filter algorithm filters and fuses the measurement data of each inertial sensor, and outputs the fused sensor data. The invention combines redundant inertial sensor devices, establishes a filtering algorithm through the data output of the high-range inertial device and the low-range device, and establishes a filtering algorithm through the error model of the inertial sensor, and finally obtains a sensor scheme that takes into account high-range and high-stability. The present invention adopts filtering means, and adapts different error parameters to different sensors, automatically identifies the errors of multiple inertial sensors in the process of filtering and fusion, and outputs optimized data, which not only expands the range of the sensor system, but also improves the entire transmission range. performance of the sensing system.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a method and system for expanding the range of an inertial sensor. Background technique [0002] The current design of inertial sensors (including gyroscopes and accelerometers) has a preset measurement range (range). Generally, inertial sensors with different ranges correspond to different sensor performances and different costs. There are two cases. One is to design the sensor with a narrow range in the design stage to ensure the stability and noise performance of the inertial sensor; the other is that the sensor itself is designed for a large range, and the sensor itself supports Configuration, in the case of different ranges, will correspond to different performance (common is the resolution of the sensor). [0003] In the actual sensor application, the sensor needs to be selected, and the range is a major factor to consider. Applications require both dynamic performance (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/16G01C21/20G01C25/00
CPCG01C21/16G01C21/20G01C25/005
Inventor 罗璋张生志余帅刘超军
Owner 武汉元生创新科技有限公司
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