Rapid assisted positioning method for GPS (global positioning system) on portable mobile platform

A mobile platform and auxiliary positioning technology, applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., can solve the problems of slow GPS positioning speed, low positioning accuracy, and insufficient user experience, and achieve rapid positioning and positioning high precision effect

Active Publication Date: 2012-08-15
FUZHOU ROCKCHIP SEMICON
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The current portable mobile platform products are basically equipped with GPS positioning function as standard. The GPS positioning speed is slow, the cold start time is long, and the positioning accuracy of the device is low indoors; if the AGPS chip is used to accelerate the GPS startup, this will greatly increase the production cost of the product. , and due to the large coverage of GSM base stations, the blurred area increases and the user experience is insufficient

Method used

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  • Rapid assisted positioning method for GPS (global positioning system) on portable mobile platform
  • Rapid assisted positioning method for GPS (global positioning system) on portable mobile platform
  • Rapid assisted positioning method for GPS (global positioning system) on portable mobile platform

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Embodiment Construction

[0014] see figure 1 and figure 2 As shown, the method for fast GPS-assisted positioning on a portable mobile platform of the present invention is first provided with a WIFI baseband and a GSM baseband on the portable mobile platform, and the method specifically includes the following steps:

[0015] Step 10, start the map engine of the portable mobile platform, query and judge the current GPS state, if the GPS state is a cold start state, then enter step 20; if the GPS state is not a cold start state, then perform GPS self-positioning, and end the process; Among them, judging the current GPS status is to analyze the satellite data information searched in the current GPS according to the GPS communication protocol format. If the searched satellite data information is zero or the searched satellite signal is not good (the satellite signal is not good, there is a satellite signal , but the signal is not strong enough to use), then the current GPS is a cold start, otherwise, the...

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Abstract

The invention provides a rapid assisted positioning method for a GPS (global positioning system) on a portable mobile platform. The method includes the steps: firstly, arranging a WIFI (wireless fidelity) base band and a GSM (global system for mobile communications) base band on the portable mobile platform; secondly, reporting fuzzy position information provided by the WIFI base band and the GSM base band to a fuzzy adaptation layer; screening priority levels by the aid of the fuzzy adaptation layer; and transmitting data to a network satellite database by the aid of a map engine and precisely setting data parameters needed by the GPS after satellite parameter matching to realize rapid assisted positioning with the double base bands. Without increasing hardware cost, cold boot for the GPS is realized, a portable mobile device can be rapidly positioned indoors, and positioning precision is high.

Description

【Technical field】 [0001] The invention relates to the field of global satellite positioning and navigation, in particular to a method for fast GPS-assisted positioning on a portable mobile platform. 【Background technique】 [0002] Portable mobile work platforms are mobile positioning platforms used on mobile devices (PDAs and notebooks). It can provide interactive positioning, navigation, voice and video services between PDAs, notebook computers and desktop computers. [0003] The GPS positioning function of portable mobile devices generally inputs the baseband location information of the mobile device into the database, which is a general network satellite database established by the provider to store the baseband location information of each mobile device; when the mobile device passes through the network After accessing the database, the location information of the mobile device at this time is queried in the database, that is, the GPS positioning function is completed. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/12
Inventor 林涛
Owner FUZHOU ROCKCHIP SEMICON
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