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High-accuracy positioning system and method based on Android system

A high-precision, enhanced system technology, applied in satellite radio beacon positioning systems, radio wave measurement systems, measurement devices, etc., can solve the problems of low precision and inability to achieve meter-level precision positioning requirements, to ensure availability, differential The effect of data volume reduction and cost reduction

Active Publication Date: 2015-10-28
上海北斗卫星导航平台有限公司
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AI Technical Summary

Problems solved by technology

However, the accuracy of positioning using this technology is not high, and the positioning requirements of meter-level accuracy cannot be achieved

Method used

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  • High-accuracy positioning system and method based on Android system
  • High-accuracy positioning system and method based on Android system
  • High-accuracy positioning system and method based on Android system

Examples

Experimental program
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Embodiment 1

[0049] Such as figure 1 As shown, this embodiment includes: a positioning enhancement system and a mobile terminal using the Android operating system, wherein: the positioning enhancement system provides pseudorange differential data and general precision positioning results, and the mobile terminal using the Android operating system uses the observed satellite signals and The differential data obtained from the differential service system runs the pseudo-range differential algorithm to obtain high-precision positioning results; when the satellite positioning cannot work, the mobile terminal directly uses the ordinary precision positioning results.

[0050] The positioning enhancement system includes: satellite observation data acquisition module, differential data calculation module, Wi-Fi hotspot positioning module (including Wi-Fi hotspot database), base station positioning module (including base station address database), IP positioning module (including IP address databas...

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Abstract

Provided is a high-accuracy positioning system and a method based on an Android system. The high-accuracy positioning system comprises a positioning enhancement system and a mobile terminal with an Android operating system, wherein the mobile terminal comprises a GNSS positioning unit, the Android operating system, a pseudo-range difference calculating unit, and a human-machine interaction unit, and when GPS positioning in the mobile terminal cannot work normally, the pseudo-range difference calculating unit respectively receives differential data from the positioning enhancement system, receives satellite raw observation data from the GNSS positioning unit via the Android operating system, obtains high-accuracy positioning results via the difference algorithm, and outputs the results to the human-machine interaction unit. According to the high-accuracy positioning system and the method, based on the pseudo-range difference technology, Wi-Fi hotspots, base station positioning, and IP positioning technology are integrated, rapid and low-cost high-precision cellphone satellite positioning is realized, and the positioning availability is high.

Description

technical field [0001] The present invention relates to a technology in the field of positioning of mobile devices, in particular to a high-precision positioning system and method based on the Android system. Based on the ground-based augmentation system and differential positioning technology, differential data is obtained at the mobile phone end, and a pseudo-range differential algorithm is run, thereby Get high precision positioning. Background technique [0002] The current outdoor positioning technology for mobile phone terminals can be basically divided into two types, one is based on the positioning method of the operator's base station, which uses the distance between the mobile phone to the base station to determine the position of the mobile phone terminal; the other is based on satellites (GPS, BeiDou , GLONASS, etc.) positioning method, the method utilizes the positioning module in the mobile terminal to realize positioning. [0003] The basic principle of the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/48
CPCG01S19/48
Inventor 陈大吾朱峰孙长虹赵博余张民
Owner 上海北斗卫星导航平台有限公司
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