Method for switching indoor ultra wide band (UWB) location and outdoor global position system (GPS) location

A GPS positioning, indoor and outdoor positioning technology, applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., can solve the problems of integrated positioning and coordinate system transformation without considering the adaptive switching of indoor and outdoor positioning, and achieve reliable Effect of Adaptive Switching Method

Active Publication Date: 2012-08-22
NANJING HANDSMAP INFOR TECH
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Problems solved by technology

This method realizes indirect communication between mobile terminals and UWB tags under the condition of UWB indoor positioning, but does not consider integrated positio

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  • Method for switching indoor ultra wide band (UWB) location and outdoor global position system (GPS) location
  • Method for switching indoor ultra wide band (UWB) location and outdoor global position system (GPS) location
  • Method for switching indoor ultra wide band (UWB) location and outdoor global position system (GPS) location

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Embodiment Construction

[0039] The present invention needs to use the following existing methods: public method one: judging algorithm whether a point is in a polygon (Zhang Hong, Wen Yongning, Liu Aili. Geographical Information System Algorithm [M]. Science Press, 2006: 26 pages); Method Two: Coordinate Composite Transformation Algorithm (Zhang Hong, Wen Yongning, Liu Aili. Fundamentals of Geographic Information System Algorithms [M]. Science Press, 2006: Page 48); Public Method Three: Gauss-Kriging Projection Algorithm (Zhang Hong, Wen Yongning, Liu Aili. Fundamentals of Geographic Information System Algorithms [M]. Science Press, 2006: 65 pages); Public Method 4: Algorithm for Judging Whether a Point Is Inside a Polygon (Zhang Hong, Wen Yongning, Liu Aili. Geographic Information System Algorithms Foundation [M]. Science Press, 2006: 26 pages).

[0040] The adaptive switching of indoor and outdoor positioning mentioned in this patent refers to the process of timely switching between the outdoor GPS...

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Abstract

The invention discloses a method for switching indoor ultra wide band (UWB) location and outdoor global position system (GPS) location, which is used for achieving the seamless mobile guiding from outside to inside and from inside to outside by means of organically coordinating the outdoor GPS location with the indoor UWB location. According to the method for switching the indoor UWB location and the outdoor GPS location, on the basis of the geographic coordinate of wideband global satellite (WGS) 84, by means of a custom local coordinate system serving as a space reference for a mobile guiding system, coordinates of an indoor control point can be calculated according to the coordinates of an outdoor known point, so that under the unified coordinated system, according to location coordinates of tourists and coordinates of entrances and exits, by means of obtaining action modes such as speeds, moving directions and the like of the tourists and judging whether the tourists enter into the broadcast switching areas, the GPS location and the UWP location can be real-timely switched, and the self-adaptation method for switching the indoor UWB location and the outdoor GPS location is nature, timely and reliable.

Description

technical field [0001] The invention relates to an indoor and outdoor switching positioning method, and relates to the technical fields of indoor and outdoor positioning and navigation such as geographic information system (GIS) technology, GPS positioning technology, ultra-wideband (UWB) indoor positioning technology and voice multimedia technology. Background technique [0002] At present, local area (indoor) positioning methods generally adopted in the world include UWB positioning, infrared positioning, radio frequency identification positioning, Bluetooth positioning, Wi-Fi positioning, ZigBee positioning, etc. Among them, UWB (Ultra Wide Band) is ultra-wideband, which uses a bandwidth greater than 0.5GHz or greater than 20% of the center frequency, and communicates through weak pulse signals. The maximum data transmission speed can reach tens of Mbit / s to hundreds of Mbit / s s, which solves the power consumption problem of mobile terminals while ensuring high data rate...

Claims

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Application Information

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IPC IPC(8): G01S19/48
Inventor 龙毅余明朗严瑞李德鹏
Owner NANJING HANDSMAP INFOR TECH
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