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High-precision inertial measurement device and inertial measurement method

An inertial measurement device and inertial measurement technology, applied in the field of inertial measurement, can solve the problems of inaccurate inertial measurement signals and inability to compensate for it.

Pending Publication Date: 2021-03-12
ACEINNA TRANSDUCER SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, when an inertial measurement device in the current inertial measurement unit drifts, errors or freezes, the inertial measurement signal obtained by it will become inaccurate, and it cannot be compensated by various subsequent algorithm processing

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  • High-precision inertial measurement device and inertial measurement method
  • High-precision inertial measurement device and inertial measurement method
  • High-precision inertial measurement device and inertial measurement method

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Embodiment Construction

[0016] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. As used herein, the terms "comprises", "comprises" or any other variation thereof are intended to cover a non-exclusive inclusion of elements other than those listed and also other elements not expressly listed. In the case of no conflict, the above-mentioned embodiments and features in the embodiments herein may be combined with each other.

[0017] The invention provides an inertial measurement device, which has a fault-tolerant mechanism and can obtain high-precision inertial measurement signals. image 3 It is a structural diagram of the inertial measurement device 300 in an embodiment of the present invention.

[0018] Such as image 3 As sh...

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Abstract

The invention provides an inertial measurement device and an inertial measurement method. The inertia measurement device comprises: a plurality of inertia measurement devices, wherein each inertia measurement device senses an inertia measurement signal; and a processing unit which is used for detecting whether the inertia measurement devices are inconsistent and abnormal or not by analyzing the inertia sensing signal of the inertia measurement devices. According to the invention, the plurality of inertial measurement devices are used for inertial measurement, the abnormal inertial measurementdevice is determined through anomaly detection, and the inertial measurement signal of the abnormal inertial measurement device is ignored in the subsequent signal processing process, so that the high-precision inertial measurement signal can be obtained.

Description

technical field [0001] The invention relates to the field of inertial measurement, in particular to a high-precision inertial measurement device with a fault tolerance mechanism. Background technique [0002] An inertial measurement unit (IMU) is an electronic device that uses a combination of accelerometers and gyroscopes to measure the acceleration, angular rate, and sometimes a magnetometer of a supporting substrate to measure the magnetic field around the supporting substrate. [0003] Such as figure 1 As shown, the inertial measurement unit detects linear acceleration by using one or more accelerometers, and detects rotation rate by using one or more gyroscopes. There are also IMUs that also include a magnetometer, which is often used as a heading reference. For each of the three axes (ie, pitch, roll, and yaw, X, Y, Z), an accelerometer and a gyroscope are provided. In one embodiment, the inertial measurement unit comprises at least one 3-axis accelerometer and at l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/18G01C21/16G01C25/00
CPCG01C21/18G01C21/16G01C25/005G01P15/18G01P15/125G01P15/02G01P15/14
Inventor 麦克·霍顿王曙
Owner ACEINNA TRANSDUCER SYST CO LTD