Instrument identifying method for passive optical position fixing navigation system

An optical positioning and navigation system technology, applied in the application field of information technology, can solve problems such as difficulties, achieve the effects of good identification and tracking, simple implementation method and cost reduction

Active Publication Date: 2010-06-23
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the implementation of this method has certain difficulties, because it is necessary to design and

Method used

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  • Instrument identifying method for passive optical position fixing navigation system
  • Instrument identifying method for passive optical position fixing navigation system
  • Instrument identifying method for passive optical position fixing navigation system

Examples

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing and example the present invention will be further described:

[0038] When designing the layout of marker points on devices that can be tracked and positioned, the design principles of marker point layout in the invention concept should be fully considered, and different marker point layout schemes should be selected to facilitate identification. For example, try to use a device to be identified with a layout of four coplanar marker points, and the distance and arrangement of the four marker points are significantly different.

[0039] As an example of specific implementation, the instruments with 5 different marker point layouts shown in Table 1 can be used, and the distances between the marker points are shown in Table 1. In this example, the differences between the distances formed between the marking points on the same instrument are all greater than 5mm, and the layout of the marking points on each instrument is also o...

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Abstract

The invention provides an instrument identifying method for a passive optical position fixing navigation system, which belongs to the field of information technology application. Firstly, the position of each mark point of the instrument to be identified is distributed by that: the shapes of the consolidated mark point of each instrument are the same, while the distances between all mark points of the same instrument are different, and the distances between the mark points of different instruments are also obviously different. When in detection, firstly, binocular vision principle is used to detect the mark point in three-dimensional space, and then matched detection is performed for the geometrical relationship of all the mark points according to the known distance of the mark points of the instrument, if the combination can be found, the matching is finished, and the selected mark point forms the instrument. The invention has the advantages that more instruments can be passively traced and positioned only using one specified mark point, the interchangeability of damageable mark points is improved and the cost for changing mark point is reduced.

Description

[0001] This application is a divisional application with application number 200810117180.6 filed by the same applicant on July 25, 2008 technical field [0002] The present invention is a device identification method used in a passive optical positioning and navigation system. The method utilizes an optical motion tracking system to simultaneously track and identify multiple devices equipped with passive marker points, and is used for multiple passive markers simultaneously used by the positioning and navigation system. device tracking and identification. The present invention belongs to the field of information technology application. technical background [0003] With the development of information technology, in order to determine the positional relationship of an object (or called a device) in space, the most commonly used is the infrared optical three-dimensional positioning and tracking system, which obtains the position in the field of view through more than two infra...

Claims

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Application Information

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IPC IPC(8): G01S7/48G01S17/66
Inventor 王广志丁辉郭兆君
Owner TSINGHUA UNIV
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