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A high-precision indoor and outdoor fusion positioning system and method

An indoor and outdoor positioning and indoor positioning technology, which is applied in satellite radio beacon positioning systems, radio wave measurement systems, instruments, etc., can solve the problems of high energy consumption of locators, affecting accuracy, interference, etc., to improve GPS positioning accuracy, Low cost and wide application effect

Active Publication Date: 2021-06-04
王庆文
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whether it is used for indoor or outdoor positioning, the W1-Fi transceiver can only cover an area within a radius of 90 meters, and is easily interfered by other signals, thereby affecting its accuracy, and the energy consumption of the locator is also high

Method used

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  • A high-precision indoor and outdoor fusion positioning system and method
  • A high-precision indoor and outdoor fusion positioning system and method
  • A high-precision indoor and outdoor fusion positioning system and method

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with embodiment.

[0049] The system designed by the invention is divided into a terminal part and a remote system.

[0050] Terminals include mobile phones and dedicated terminals. Here we mainly introduce dedicated terminals, which include:

[0051] 1) Sensor module, including accelerometer, gyroscope, magnetometer, and barometer; the main purpose is to determine the moving direction and motion state of the moving target (also known as modal detection), in which the barometer is used to determine the height of the target and help The system determines the floor where the target is located

[0052] 2) Bluetooth, Wi-Fi module: used to scan the Bluetooth or Wi-Fi signal on the scene, as the initial position of the positioning target. Only one of Bluetooth and Wi-Fi exists. Wi-Fi already exists widely in the real world, but Bluetooth has not widely existed. In the absence of Wi-Fi, it is recommended t...

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Abstract

The invention relates to an indoor and outdoor fusion positioning method by means of a special terminal or a smart phone, which is not only applicable to humans, but also applicable to robots and other intelligent mobile devices. Features: 1) Indoor positioning is realized through inertial navigation, particle filter, fingerprint matching, and indoor map matching, with an accuracy of about 1 meter; 2) The system automatically switches between indoor and outdoor scenes, seamlessly combining indoor and outdoor positioning; 3) The dedicated terminal is controlled by general-purpose hardware Modules such as GPS, inertial navigation sensors (accelerometers, magnetometers, gyroscopes), wifi or Bluetooth modules, communication modules, etc.; 5) It has an excellently designed map labeling system, which can be conveniently and quickly marked on the map, and can be completed without professional skills; 6) The algorithm is perfect and independent, with high portability, and can be easily transplanted to other smart phone platforms, robots platforms, wearables, and more.

Description

technical field [0001] The present invention relates to the field of mobile terminal applications and the field of location-based online and offline (o2o) fusion, in particular to an indoor and outdoor fusion positioning method with the help of special terminals and smart terminals, which is not only applicable to people, but also to smart devices and Wearable devices such as robots, smart glasses, smart insoles, etc. Background technique [0002] Location-based applications are currently the most common and most needed applications for humans. At present, outdoor positioning has matured. With the help of GPS navigation satellites and wireless communication base stations, the positioning accuracy has reached about 5 meters. In the interior of large buildings, outdoor methods cannot be used for positioning. In the past ten years, many companies and scientific research institutions have conducted a large number of indoor positioning research (please see the summary of indoor ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00G01S19/48
CPCG01S19/48H04W64/00
Inventor 王庆文
Owner 王庆文
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