A positioning system based on an arc-shaped magnetic field sensor array and its application method
A magnetic field sensor and positioning system technology, applied in electric/magnetic exploration, radio wave measurement system, instrument, etc., can solve the problem that it is difficult to meet the target detection requirements, and achieve the effect of small quantity, simple system and low cost
Active Publication Date: 2022-06-21
NO 719 RES INST CHINA SHIPBUILDING IND
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the shortcomings of the existing magnetic target detection and positioning methods that require a large number of magnetic field sensors, and at the same time it is difficult to take into account the detection requirements of various types of large and small targets. A magnetic target detection and positioning system based on an arc array is proposed. how to use it
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[0036] The technical solutions of the present invention will be further described below with reference to the accompanying drawings.
[0037] The positioning system of the present invention mainly includes three parts, a controller, that is, a signal processor; a data transmission unit and a magnetic field sensor. The data transmission unit only needs to be responsible for the signal transmission between the sensor and the signal processor, preferably realized by an optical cable or a photoelectric composite cable, Of course, for the case where the sensors are relatively close to each other, a simpler signal transmission method can be adopted, and the signal transmission is performed directly through the cable. The structures of the above three parts should be known to those skilled in the art, so they will not be described in detail here.
[0038] The core of the present invention lies in the arrangement of the magnetic field sensor and the processing of the signal, and the s...
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The invention relates to a positioning system based on an arc-shaped magnetic field sensor array and a using method thereof. The positioning system includes a controller, a data transmission unit and a plurality of magnetic field sensors, and the plurality of magnetic field sensors respectively communicate with the controller through the data transmission unit; the plurality of magnetic field sensors are arranged in an arc. The invention is applicable to the field of underwater safety detection, can realize the detection and positioning of various types of targets without arranging a large number of magnetic field sensors, has good algorithm adaptability and high cost-effectiveness.
Description
technical field [0001] The invention relates to the technical field of underwater target detection, in particular to a system for detecting and locating an underwater target using its magnetic characteristics and a method for using the same. Background technique [0002] Underwater, detection and positioning can be carried out through the characteristics of the acoustic field, electromagnetic field and optics of the underwater target to achieve underwater security alert. For most underwater targets, because they are made of metal, they have a fixed magnetic field, and at the same time, an induced magnetic field will be generated under the action of the geomagnetic field, and detection and positioning can be realized by using their magnetic field characteristic signals. [0003] At present, the magnetic target localization algorithms include gradient tensor method and various state estimation algorithms, which require the sensor placement positions to be set separately accord...
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IPC IPC(8): G01C21/00G01V3/08
CPCG01C21/005G01V3/081
Inventor 杨勇王建勋杨文铁左超张国友余定峰徐林杨帅肖涵琛郑攀峰王作帅周诗颖周彤孙瑜陈志伟
Owner NO 719 RES INST CHINA SHIPBUILDING IND