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Wireless signal sensation based indoor augmented reality realizing method

A wireless signal, augmented reality technology, applied in wireless communication, electrical components and other directions, can solve problems such as large amount of calculation, achieve the effect of improving performance and efficiency, making up for limitations, and prolonging use time

Active Publication Date: 2014-05-28
上海克里浠智能科技有限公司
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  • Application Information

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Problems solved by technology

Among them, the wireless fingerprint positioning technology has the advantages of anti-multipath propagation effect and is suitable for complex geographical environments, but its positioning accuracy is relatively low compared with TOA and TDOA equidistance methods, and there is a problem of large amount of calculation in high dimensions.

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  • Wireless signal sensation based indoor augmented reality realizing method
  • Wireless signal sensation based indoor augmented reality realizing method
  • Wireless signal sensation based indoor augmented reality realizing method

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Embodiment Construction

[0027] In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific figures.

[0028] Due to the inability to accurately perceive the user's location through GPS in an indoor environment, augmented reality services are often limited; in addition, since the terminal is the user's mobile phone, its power is limited to a certain extent. In this regard, the present invention combines the characteristics of augmented reality and wireless positioning technology, and proposes a solution under the condition of considering the limitations of the mobile terminal itself. The BBF query method reduces the computational load of the system, optimizes the scanning interval based on attitude estimation, and at the same time based on the KNN calculation method of the weight of the previous position distance and azimuth, and finally displays t...

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Abstract

The invention discloses a wireless signal sensation based indoor augmented reality realizing method. According to the method, wireless fingerprint is used as the basis for system position judgment, the system calculation amount is reduced by using a kd tree and a BBF (Best Bin First) method, the scanning interval is optimized based on attitude estimation, the weight KNN (K Nearest Neighbor) is calculated based on a previous distance and a direction, and the weight is displayed based on a display method of POI (Point of Interest) distance and direction. By adopting the method, augmented reality service can be realized in an indoor large-scale scene, and the limit caused by augmented reality in an indoor labeling mode is overcome.

Description

technical field [0001] The invention relates to the field of wireless communication and virtual reality, in particular to a method for realizing indoor augmented reality. Background technique [0002] With the rapid development of the mobile Internet, augmented reality is not only used in professional fields such as industry and military, but will also serve more ordinary people's lives. The augmented reality system based on the user's location is a relatively mainstream form at present. [0003] Its related technologies include augmented reality technology and wireless fingerprint positioning technology. The existing location-based augmented reality technology mainly relies on GPS, electronic compass, gyroscope, etc. as information support. However, GPS cannot work normally in an indoor closed environment, and the accuracy of GPS is about 10 meters. The accuracy of the service, thus causing the technology to encounter bottlenecks. At present, the main indoor positioning ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00
Inventor 史丹青王闻彦雨田秋浩李雪蕾
Owner 上海克里浠智能科技有限公司