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High-precision indoor and outdoor fusion positioning system and method

A technology for indoor and outdoor positioning and indoor positioning, which is applied in satellite radio beacon positioning systems, radio wave measurement systems, measurement devices, etc. , low cost, wide application effect

Active Publication Date: 2017-08-25
王庆文
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  • Abstract
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  • 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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  • High-precision indoor and outdoor fusion positioning system and method
  • High-precision indoor and outdoor fusion positioning system and method
  • 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 using a dedicated terminal or a smart phone, which is not only suitable for people, but also is suitable for robots and other intelligent mobile devices. The indoor and outdoor fusion positioning method is characterized in that: 1) indoor positioning is realized by inertial navigation, particle filter, fingerprint matching and indoor map matching, the accuracy is 1 meter or so; 2) the system automatically switches indoor and outdoor scenes, and indoor and outdoor is seamlessly integrated; 3) the dedicated terminal is composed of a universal hardware module, such as GPS, an inertial navigation sensor (an accelerometer, a magnetometer, a gyroscope), a wifi or a Bluetooth module, a communication module and the like; 4) the implementation site is based on the existing wifi network or Bluetooth network, no other hardware needs to be deployed, and thus the cost is reduced; 2) a map marking system with excellent design is provided for marking the map conveniently and quickly without professional skills; and 6) the algorithm is complete and independent, the transportability is high, and thus the indoor and outdoor fusion positioning method can be easily transplanted to other smart phone platforms, robot platforms, wearable devices, etc.

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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IPC IPC(8): H04W64/00G01S19/48
CPCG01S19/48H04W64/00
Inventor 王庆文
Owner 王庆文
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