Multi-sensor data acquisition and fusion method of magnetic detection system

A multi-sensor and data acquisition technology, applied in the field of magnetic detection, can solve the problems of different sampling frequencies and asynchronous sampling results, and achieve the effect of realizing synchronous processing, solving asynchronous sampling results, and realizing the fusion of multi-sensor data.

Active Publication Date: 2020-01-07
BEIJING AUTOMATION CONTROL EQUIP INST
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Problems solved by technology

[0003] The invention provides a multi-sensor data collection and fusion method of a magnetic detection system, which can solve the technical problem of out-of-sync sampling results caused by different multi-sensor sampling frequencies in the prior art

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  • Multi-sensor data acquisition and fusion method of magnetic detection system

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[0017] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...

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Abstract

The invention provides a multi-sensor data acquisition and fusion method of a magnetic detection system, and the method comprises the following steps of respectively obtaining original sensor data ofmultiple magnetic detection systems located at different positions in a three-dimensional space, and selecting one of the multiple magnetic detection systems as a magnetic detection system base station; performing data processing on the original sensor data of each magnetic detection system to achieve the unification of the sampling frequencies of the original data of each sensor; performing datafeature extraction and data fusion on the multi-sensor data of the magnetic detection systems after the respective sampling frequencies are unified; and respectively performing differential treatmenton the feature vector values in the multiple magnetic detection systems except the magnetic detection system at any spatial position in the magnetic detection system base station and the feature vector value of the magnetic detection system base station to complete multi-sensor data acquisition and fusion. The technical solution of the invention is applied to solve the technical problem of asynchronous sampling results caused by different sampling frequencies of multiple sensors in the prior art.

Description

technical field [0001] The invention relates to the technical field of magnetic detection, in particular to a multi-sensor data collection and fusion method for a magnetic detection system. Background technique [0002] Magnetic detection technology uses a variety of magnetic sensors to detect the environment and the target magnetic field, so as to obtain the abnormal magnetic field characteristics of the target, and then carry out target recognition. Based on the atomic magnetometer technology, the optical pump magnetometer uses atomic spin precession to detect the magnetic field to be measured. It is suitable for the geomagnetic field environment. Its detection accuracy is high, but the sampling frequency is low and it can only measure the total field strength of the magnetic field. Fluxgate sensors are based on electromagnetic induction technology and use induction coils to sense the magnetic field to be measured. It has a high sampling frequency and can measure three-axi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/032G01R33/04
CPCG01R33/032G01R33/04
Inventor 秦杰魏克全万双爱王同雷周明
Owner BEIJING AUTOMATION CONTROL EQUIP INST
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