Environment feature library generation and indoor positioning method and device based on the environment feature library

A technology based on environmental characteristics and positioning beacons, which is applied to services based on location information, services based on specific environments, and wireless communications.

Active Publication Date: 2019-11-22
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main defect of the existing technology is that the iBeacon base stations deployed indoors generally belong to different shops or companies. When a shop or company changes the ID of the iBeacon base station it deploys, the third-party positioning service provider is performing indoor positioning. When the data in the positioning library is not modified in time, it will cause technical problems such as positioning failure or decreased positioning accuracy.

Method used

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  • Environment feature library generation and indoor positioning method and device based on the environment feature library
  • Environment feature library generation and indoor positioning method and device based on the environment feature library
  • Environment feature library generation and indoor positioning method and device based on the environment feature library

Examples

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no. 1 example

[0031] figure 1 It is a flow chart of a method for generating an environment feature library provided in the first embodiment of the present invention. The method of this embodiment can be executed by a device for generating an environment feature library, which can be implemented by means of hardware and / or software. And generally, it can be integrated into a positioning server for providing indoor positioning services, wherein the positioning server can be a single server, or a cluster server composed of multiple servers.

[0032] The method of this embodiment specifically includes:

[0033] 110. Collect the environmental information of the location where the positioning beacon is located.

[0034] In this embodiment, the positioning beacon specifically refers to a Bluetooth transmitter (also called Beacon) set in an indoor environment and transmitting Bluetooth signals based on a set data transmission specification. Typically, the positioning beacon may be an iBeacon base...

no. 2 example

[0053] figure 2 It is a flowchart of a method for generating an environment feature library according to the second embodiment of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, the specific optimization of collecting the environmental information of the position of the positioning beacon is as follows: in the sampling area determined by the position of the positioning beacon, select a plurality of An information collection point; at each of the information collection points, respectively obtain the environmental information corresponding to the positioning beacon;

[0054] At the same time, according to the collected environmental information, the environment characteristic model will be generated and specifically optimized as follows:

[0055] Construct m n-dimensional vectors according to n types of environmental information respectively acquired at m information collection points, wherein: n≥1; m≥2;...

no. 3 example

[0074] image 3 It is a flow chart of an indoor positioning method based on an environmental feature library according to the third embodiment of the present invention. The method of this embodiment can be executed by an indoor positioning device based on an environmental feature library, which can be implemented in the form of hardware and / or software, and generally can be integrated into a positioning server for providing indoor positioning services, and needs to be It is used together with mobile terminals for indoor positioning.

[0075] The method of this embodiment specifically includes:

[0076] 310. If it is determined that the terminal to be positioned has scanned the positioning beacon, acquire environment information corresponding to the terminal to be positioned.

[0077] In this embodiment, when a mobile terminal installed with a positioning service APP needs an indoor positioning service, it will send a positioning request to a corresponding positioning server....

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Abstract

The embodiment of the invention discloses a method and device for generating an environment feature library and an indoor positioning method and device based on the environment feature library. The method for generating the environment feature library comprises steps of: acquiring the environmental information of a position where a positioning beacon is located; generating an environment feature model according to the acquired environmental information; and using the environment feature model as a stable identifier of the positioning beacon and correspondingly storing the stable identifier and the positional information of the positioning beacon in the environment feature library. According to the technical scheme of the invention, a relation is established between the positioning beacon and the environmental information corresponding thereto so that a third-party positioning service provider, even though an iBeacon base station deploy party changes the ID of an iBeacon base station deployed thereby, may accurately identify the iBeacon base station and rapidly and accurately performs indoor positioning according to the position of the iBeacon base station.

Description

technical field [0001] Embodiments of the present invention relate to indoor positioning technology, and in particular to a method and device for generating an environmental feature library and indoor positioning based on the environmental feature library. Background technique [0002] Bluetooth technology is a technology suitable for wireless data transmission within a short-distance local area network. It has the characteristics of low power consumption and multiple supported services, and has been widely used in mobile terminals. iBeacon (beacon) is a set of specifications based on the Bluetooth 4.0 protocol developed by Apple, which is mainly used indoors. [0003] At present, a large number of iBeacon base stations are deployed in large indoor buildings such as shopping malls and office buildings. When a mobile terminal approaches an iBeacon base station, it can sense a corresponding iBeacon signal. Through the iBeacon base station, when the user enters the radiation a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/021H04W4/33H04W64/00
CPCH04W4/04
Inventor 张传明
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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