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Device and method for electromagnetic positioning

An electromagnetic positioning and electromagnetic wave technology, applied in positioning, measuring devices, radio wave measuring systems, etc., can solve problems such as poor real-time performance and complex circuits

Active Publication Date: 2014-01-08
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The invention provides an electromagnetic positioning device and method to solve the problems of complex circuits and poor real-time performance in the existing time-division system, and solve the problem of singular points in the traditional matrix positioning algorithm, which can realize full-angle positioning

Method used

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  • Device and method for electromagnetic positioning
  • Device and method for electromagnetic positioning
  • Device and method for electromagnetic positioning

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Embodiment Construction

[0082] Receiving antenna, multi-channel selection circuit, filter amplifier circuit, A / D conversion circuit, data processing and timing control unit, D / A conversion circuit, transmission drive circuit, overvoltage protection circuit, three-axis transmission sources are connected in sequence, and data processing The timing control unit is also connected with the host computer;

[0083] The D / A conversion circuit is connected with the data processing and timing control unit, writes the look-up table program into the processor DSP, and controls the D / A to generate continuous sinusoidal drive signals;

[0084] The emission drive circuit is mainly composed of amplitude amplification and power amplification circuits, which amplifies the initial drive signal to drive the emission source to work;

[0085] The three-axis emission source described in the present invention is composed of three mutually orthogonal and concentric coils wound on the frame and connected in series with resist...

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Abstract

The invention relates to an alternating current electromagnetic positioning device and an alternating current electromagnetic positioning method, and belongs to an electromagnetic positioning device and an electromagnetic positioning method. The alternating current electromagnetic positioning device comprises a data processing and time sequence control unit, a D / A (digital to analog) converting circuit, a sending driving circuit, an overvoltage protection circuit, a three-axis emitting source, a receiving antenna, a multipath selecting circuit, a filter amplifying circuit and an A / D (analog to digital) converting circuit. According to the method, firstly, the data processing and time sequence control unit controls the D / A converting circuit to generate sinusoidal signals with different frequencies, the sinusoidal signals are sent to the three-axis emitting source after being subjected to amplitude and power amplification, the receiving antenna receives electromagnetic signals of space radiation, and the position posture information of a target is solved by a solving algorithm and is transmitted to an upper computer for display. The alternating current electromagnetic positioning device and the alternating current electromagnetic positioning method have the advantages that a hardware processing circuit is simplified, the problems of complicated circuit and low positioning speed caused by the existing time-division system work mode are avoided, the positioning timeliness is ensured, and in addition, the singular point problem of the positioning is solved.

Description

technical field [0001] The invention relates to an AC electromagnetic positioning device and method, in particular to an electromagnetic positioning device adopting a simultaneous emission scheme and a quaternion-based electromagnetic positioning method. Background technique [0002] In recent years, with the rapid development of various data services, people's demand for positioning and navigation has gradually increased, especially in aviation pilot driving, medical surgery, athlete simulation training, and large-scale immersive games. The position and posture information of the holder. At present, the common positioning methods mainly include ultrasonic, photoelectric and electromagnetic positioning. [0003] Photoelectric positioning completes positioning and capture tasks by tracking and monitoring specific light points on the target object. Because it needs to analyze and process the image, the amount of calculation is relatively large, and the processing speed is re...

Claims

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Application Information

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IPC IPC(8): G01S5/00
CPCG01S5/02G01S5/0226G01S5/0247
Inventor 孙晓颖陈明智白洋陈建燕学智王庆龙田野
Owner JILIN UNIV
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