A Pseudo-Lite Indoor Navigation Method Based on Pseudo-Points

An indoor navigation and pseudolite technology, applied in satellite radio beacon positioning systems, instruments, measuring devices, etc., can solve problems such as low positioning accuracy, weak signal, and easy interference, and achieve low hardware cost, high positioning accuracy, Implantable effect

Active Publication Date: 2019-12-03
格星微电子科技成都有限公司
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Problems solved by technology

[0002] The GNSS signal itself is also an electromagnetic wave signal, which has all the characteristics of electromagnetic waves, such as being relatively fragile and susceptible to interference; while the GNSS signal is transmitted from the satellite to the receiver, the environment in the middle path is very complicated, and it is easy to receive. to various interferences, making the received signal very weak
When the GNSS receiver works indoors, the signal is greatly attenuated due to the influence of buildings, and the positioning accuracy is also very low. It is impossible to directly extract navigation data and time information from satellite broadcasts as outdoors

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  • A Pseudo-Lite Indoor Navigation Method Based on Pseudo-Points
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  • A Pseudo-Lite Indoor Navigation Method Based on Pseudo-Points

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Embodiment Construction

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiment is only one embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0064] For the sake of simplicity, common technical knowledge known to those skilled in the art is omitted in the following content.

[0065] Such as figure 1 As shown, the pseudolite indoor navigation method based on pseudopoints comprises the following steps:

[0066] S1. Regulate the indoor pseudolite, and adjust the PRN number of the visible GPS satellite to the pseudolite; in the specific implementation, the center position of the indoor area to be positioned ...

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Abstract

The invention discloses a pseudolite indoor navigation method based on a false point, wherein the method includes steps of regulating indoor pseudolite, and regulating a PRN number of a visible GPS satellite to the pseudolite; applying the regulated pseudolite to simulate the GPS satellite signal at the zone to be located, generating and sending the pseudolite signal; according to the pseudolite signal, acquiring and outputting the false point coordinate on the basis of the set agreement; judging the positioning zone according to the pseudolite coordinate; solving the GPS satellite coordinate; acquiring the pseudolite coordinate corresponding to the GPS satellite; according to the positioning zone, analyzing and calculating the false point coordinate, the pseudolite coordinate and the GPS satellite coordinate, and acquiring the current user coordinate. The pseudolite indoor navigation method has arranged the indoor pseudolite which is the same as the outdoor GPS satellite signal, and the demand of the indoor navigation can be completed by using an ordinary GPS receiver; compared with the other indoor navigation technology, the positioning precision is higher, the cost is lower, and the universality is stronger.

Description

technical field [0001] The invention relates to the field of indoor navigation, in particular to a pseudo-satellite indoor navigation method based on pseudo-points. Background technique [0002] The GNSS signal itself is also an electromagnetic wave signal, which has all the characteristics of electromagnetic waves, such as being relatively fragile and susceptible to interference; while the GNSS signal is transmitted from the satellite to the receiver, the environment in the middle path is very complicated, and it is easy to receive. All kinds of interference, so that the received signal is very weak. When the GNSS receiver works indoors, the signal is greatly attenuated due to the influence of buildings, and the positioning accuracy is also very low. It is impossible to directly extract navigation data and time information from satellite broadcasts as it is outdoors. [0003] With the successful implementation of satellite-based positioning service applications outdoors, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/38
CPCG01S19/38
Inventor 吕飞仁雷乔李占营林静然肖文平
Owner 格星微电子科技成都有限公司
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