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Indoor and outdoor navigation system and method

A navigation system and indoor navigation technology, applied in the field of navigation and positioning, can solve the problems of poor adaptability in unfamiliar environments and areas, and achieve the effects of improving navigation and positioning accuracy, low navigation and positioning costs, and strong environmental practicability

Active Publication Date: 2017-04-05
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method needs to establish an RSSI fingerprint library in advance, and it is not adaptable to unfamiliar environments.

Method used

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  • Indoor and outdoor navigation system and method
  • Indoor and outdoor navigation system and method
  • Indoor and outdoor navigation system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 and figure 2 As shown, an indoor and outdoor navigation system includes an outdoor navigation and positioning module 1, an indoor navigation and positioning module 2, a communication module 3 and a server 4;

[0049] The outdoor navigation and positioning module 1 is used for satellite navigation and positioning. When receiving positioning signals equal to or more than a preset number of satellites, the satellite orbit and the clock correction number are obtained in real time through intermittent RTPPP, and the difference between epochs The self-calibration model processes satellite orbits and clock corrections to obtain navigation and positioning data; when less than a preset number of positioning signals are received, the outdoor positioning data is transmitted to the indoor navigation and positioning module 2;

[0050] The indoor navigation and positioning module 2 is used to collect the rotation angle data, acceleration data, air pressure data and...

Embodiment 2

[0065] Such as image 3 As shown, an indoor and outdoor navigation method includes the following steps:

[0066] Step S1. The outdoor navigation and positioning module 1 performs satellite navigation and positioning. When receiving positioning signals equal to or more than the preset number of satellites, the satellite orbit and clock error correction number are obtained in real time through intermittent RTPPP, and self-calibration is performed through the difference between epochs The model processes satellite orbits and clock corrections to obtain navigation and positioning data; when less than a preset number of positioning signals are received, the outdoor positioning data is transmitted to the indoor navigation and positioning module 2;

[0067] Step S2. The communication module 3 establishes a transmission channel between the indoor navigation and positioning module 2 and the server 4; the indoor navigation and positioning module 2 collects the rotation angle data, accel...

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Abstract

The invention relates to an indoor and outdoor navigation system comprising an outdoor navigation positioning module, an indoor navigation positioning module, a communication module, and a server. The outdoor navigation positioning module carries out satellite navigation positioning; when satellite positioning signals equal to or more than a preset number are received, a satellite track and a clock difference correction number are obtained in real time by a gap type RTPPP and are processed to obtain navigation positioning data; and when positioning signals smaller than the preset number are received, the positioning data are transmitted to the indoor navigation positioning module. The indoor navigation positioning module collects rotating angle data of a pedestrian, acceleration data, air pressure data, and geomagnetic data, processes the data to obtain preliminary navigation positioning data, transmits the data to the server, and corrects the preliminary navigation positioning data to obtain final navigation positioning data. The communication module establishes a transmission channel between the indoor navigation positioning module and the server. The server carries out comparison and correction on the data and data stored in advance and stores the corrected data. Compared with the prior art, the system and method have the following beneficial effects: the positioning cost can be reduced; the indoor and outdoor positioning precision can be improved; and the application range can be extended.

Description

technical field [0001] The invention relates to the technical field of navigation and positioning, in particular to an indoor and outdoor navigation system and method. Background technique [0002] With the continuous development of society, people's demand for seamless indoor and outdoor navigation and positioning is getting higher and higher. The navigation and positioning of cars, the loss of the elderly and children, the development of drones, and the improvement of the military's individual combat capabilities have all shown great demand. [0003] The existing technical solution uses mobile devices to detect outdoor cellular towers, and then determines the location according to the strength of each cellular tower. However, it is necessary to build a large number of indoor and outdoor maps in advance, and to build a large number of cellular towers, which consumes a lot of financial and material resources. And the number of cell towers is related to the strength. If the ...

Claims

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Application Information

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IPC IPC(8): G01S19/49G01S19/41G01C21/18G01C21/20
CPCG01C21/18G01C21/206G01S19/41G01S19/49
Inventor 蔡成林于鹏邱云翔李思民黄艳虎
Owner GUILIN UNIV OF ELECTRONIC TECH
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