Indoor navigation method based on combination of region location, inertial navigation and map path

An inertial navigation and regional positioning technology, applied in the field of navigation technology, can solve the problems of high maintenance cost and insufficient positioning accuracy, and achieve the effects of reduced deployment and maintenance costs, improved accuracy, and high positioning and navigation accuracy and accuracy

Inactive Publication Date: 2015-05-06
徐永鑫
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Problems solved by technology

[0003] In order to solve the problems of insufficient positioning accuracy and high maintenance cost in the prior art, the present invention proposes an indoor n

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  • Indoor navigation method based on combination of region location, inertial navigation and map path

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 As shown, an indoor navigation method based on regional positioning combined with inertial navigation and map path, the specific steps are as follows.

[0016] S1, area identification and positioning.

[0017] The indoor environment in which the mobile terminal is located and needs positioning and navigation is divided into several unit areas, for example, a grid-like square of 3 meters by 3 meters is used as an area, or an area with an irregular shape. Then, based on one or more signal sources of WiFi, Bluetooth, geomagnetism, light, and sound waves, the area where the terminal is located is preliminarily inferred by using the identification code positioning method, geometric positioning method or fingerprint positioning method.

[0018] According to the existing technology, the regional judgment has a high accuracy ...

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Abstract

The invention discloses an indoor navigation method based on the combination of region location, inertial navigation and map path. The indoor navigation method comprises the following steps: S1, region identification location; S2, inertial navigation; S3, map path data aided navigation. According to the invention, the indoor navigation method heavily relies on sensor data and map path data of a terminal and less relies on wireless signals, so that the laying and maintenance costs are greatly reduced; meanwhile, the location and navigation technology for cooperating the sensor data, the map path data and the wireless signals greatly improve the accuracy of indoor location and navigation.

Description

technical field [0001] The invention relates to a navigation technology, in particular to an indoor navigation method based on area positioning combined with inertial navigation and map paths. Background technique [0002] There are many types of existing indoor positioning and navigation technologies. From the positioning principle, there are mainly identification code (ID)-based positioning methods, geometric positioning methods, and fingerprint positioning methods. The positioning method based on the identification code (ID) identifies the user terminal by identifying the ID of the access point, such as WiFi wireless access point, or various signal sources such as Bluetooth signals, combined with the indoor location corresponding to the preset access point ID location, but the positioning system depends on the density of access points. If higher positioning accuracy is required, a high density of access points is required, which increases the cost of hardware deployment a...

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Application Information

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IPC IPC(8): G01C21/00G01C21/16
CPCG01C21/005G01C21/165
Inventor 徐永鑫
Owner 徐永鑫
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