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A technology for indoor positioning and to-be-located points, which is applied in the field of wireless communication and can solve problems such as long positioning time
Active Publication Date: 2017-02-22
BEIJING UNIV OF POSTS & TELECOMM
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[0009] However, the existing methods of identifying, calculating and eliminating non-line-of-sight errors during the positioning process will make the positioning time too long
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[0087]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0088] In order to solve the existing technology, embodiments of the present invention provide an indoor positioning method and device, so as to eliminate non-line-of-sight errors before positioning calculation, reduce positioning time, and reduce calculation complexity.
[0089] In the following, an indoor positioning method provided by an embodiment of the present invention is firstly introduced.
[0090] Such as figure 1 As shown, it is a first flow chart o...
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Abstract
The embodiment of the invention provides an indoor positioning method and apparatus. The method comprises: a first non-line-of-sight error, relative to a first emission source, of a to-be-localized point, a second non-line-of-sight error, relative to a second emission source, of the to-be-localized point, and a third non-line-of-sight error, relative to a third emission source, of the to-be-localized point are obtained from a pre-established non-line-of-sight error distribution model; the first non-line-of-sight error, the second non-line-of-sight error, and the third non-line-of-sight error are eliminated by first arrival time, relative to the first emission source, second arrival time, relative to the second emission source, and third arrival time relative to the third emission source, of the to-be-localized point, thereby obtaining a first line-of-sight propagation value, a second line-of-sight propagation value, and a third line-of-sight propagation value; and according to the first line-of-sight propagation value, the second line-of-sight propagation value, and the third line-of-sight propagation value, positioning is carried out. During positioning, the corresponding non-line-of-sight errors of the to-be-localized point are obtained from the pre-established non-line-of-sight error distribution model directly and are eliminated, thereby realizing shortening positioning time.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, in particular to an indoor positioning method and device. Background technique [0002] With the rapid increase in the performance of new mobile devices such as mobile phones, tablet computers, wearable devices, etc. and the proliferation of location-based applications, location awareness has played an increasingly important role. In both indoor and outdoor environments, continuously and reliably providing location information can bring users a better user experience. Outdoor positioning and location-based services have matured, and location services based on GPS and maps are widely used and become one of the most used applications of various mobile devices. In recent years, location-based services related technologies and industries are moving indoors to provide ubiquitous location-based services. [0003] Indoor location awareness can support multiple application scenar...
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