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Beidou navigation node-based indoor navigation sound location system and method

A Beidou navigation and sound positioning technology, applied in the field of indoor navigation, can solve the problems of limited transmission range and inapplicability, and achieve the effect of precise indoor navigation and positioning

Inactive Publication Date: 2018-10-02
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Ultrasonic signals are difficult to penetrate obstacles, but in general it can still be applied to non-line-of-sight propagation environments, but the propagation range is very limited, so it is not suitable for large positioning areas

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  • Beidou navigation node-based indoor navigation sound location system and method
  • Beidou navigation node-based indoor navigation sound location system and method
  • Beidou navigation node-based indoor navigation sound location system and method

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Embodiment Construction

[0038] The following will further describe the present invention with reference to the accompanying drawings and specific embodiments of the present invention, but not to limit the present invention.

[0039] figure 1 It shows an indoor navigation sound positioning system based on the Beidou navigation node, including the outdoor part composed of the Beidou star, the Beidou navigation node, the monitoring station, the main control station and the injection station, and the control computer, the ultrasonic receiver and the ultrasonic generator. In the indoor part, the Beidou star, Beidou navigation node, monitoring station, main control station and injection station are connected by signals in turn. The Beidou star and Beidou navigation node are used for outdoor positioning, and the monitoring station is responsible for receiving information sent by the Beidou navigation node. The real-time information of the main control station is responsible for selectively receiving the inf...

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Abstract

The invention discloses a Beidou navigation node-based indoor navigation sound location system and method. The system comprises an outdoor part comprising the Big Dipper, a Beidou navigation node, a monitoring station, a master control station and an injection station, and an indoor part comprising a control computer, an ultrasonic receiver and an ultrasonic generator, and the more reliable service of locating in buildings like locating indoors is realized in combination with the Beidou navigation technique and the indoor navigation sound location method. The method comprises the following steps: concentrating data, inputting input the data into the indoor control computer; locating indoor sound by using a TDOA to realize ultrasonic location; navigating indoors. By adopting the technical scheme, the indoor navigation and location is accurately implemented under the condition that the location area is relatively large.

Description

technical field [0001] The invention relates to the field of indoor navigation, in particular to an indoor navigation sound positioning system and method based on Beidou navigation nodes. Background technique [0002] With the development of society, more and more high-rise buildings stand everywhere, and people's indoor activities become more and more. Even in some shopping malls, you can buy clothes, eat, watch movies, and stay, and you can complete a day's life without going out. But as the area of ​​shopping malls becomes larger and more complex, it becomes more and more important to find their own place in these buildings. Not only that, people want to find where they want to go indoors, so indoor navigation is becoming more and more urgent. [0003] At present, there are radio frequency identification, GPS positioning, infrared positioning, ultrasonic positioning, and WLAN positioning. The method of time difference measurement can obtain better results. It can also...

Claims

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Application Information

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IPC IPC(8): G01C21/20G01S15/06G01S5/18G01S19/42G01S19/48
CPCG01C21/20G01C21/206G01S5/18G01S15/06G01S19/42G01S19/48
Inventor 钟艳如王婷王斛成罗笑南
Owner GUILIN UNIV OF ELECTRONIC TECH