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Mobile device position determination method and device and mobile device

A technology for mobile devices and determination methods, which is applied in the field of satellite navigation and positioning, and can solve problems such as the inability to select the number of weeks stably and efficiently

Active Publication Date: 2020-09-22
TECHTOTOP MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a method, device and mobile device for determining the position of a mobile device, so as to solve the problem that a valid week number cannot be selected stably and efficiently

Method used

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  • Mobile device position determination method and device and mobile device
  • Mobile device position determination method and device and mobile device
  • Mobile device position determination method and device and mobile device

Examples

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Embodiment 1

[0042] Such as figure 1 As shown, it is a schematic flow chart of the method for determining the position of a mobile device provided in Embodiment 1 of the present invention. This embodiment is applicable to the application scenario of determining the position of the mobile device under the condition of cold start or warm start, and the method can be executed by the position determination device of the mobile device, which can be a mobile device or an intelligent terminal capable of receiving satellite signals , tablet or smart bracelet, etc.; in the embodiment of the present application, the location determination device of the mobile device is used as the execution subject for description, and the method specifically includes the following steps:

[0043] S110. When starting to receive satellite signals, determine several candidate week numbers according to the reference information possessed by the mobile device, and perform hit probability evaluation on the several candid...

Embodiment 2

[0073] Such as figure 2 What is shown is the device for determining the position of the mobile device provided by Embodiment 2 of the present invention. On the basis of Embodiment 1, the embodiment of the present invention also provides a device 2 for determining the position of a mobile device, which includes:

[0074] The candidate week number determining module 201 is configured to determine several candidate week numbers according to the reference information that the mobile device has when starting to receive satellite signals, and perform hit probability assessment on the several candidate week numbers according to the reference information;

[0075] The residual calculation module 202 is used to select one by one according to the hit probabilities of the several candidate week numbers from large to small, and perform residual calculation on the position correlation equation of the mobile device according to the received ephemeris data and the selected candidate week nu...

Embodiment 3

[0090] image 3 It is a schematic structural diagram of a mobile device provided in Embodiment 4 of the present invention. The mobile device includes: a processor 31 , a memory 32 and a computer program 33 stored in the memory 32 and operable on the processor 31 , such as a program for a method for determining a position of a mobile device. When the processor 31 executes the computer program 33, it realizes the steps in the embodiment of the method for determining the position of the mobile device above, for example figure 1 Steps S110 to S140 are shown.

[0091] Exemplarily, the computer program 33 can be divided into one or more modules, and the one or more modules are stored in the memory 32 and executed by the processor 31 to complete the present application. The one or more modules may be a series of computer program instruction segments capable of accomplishing specific functions, and the instruction segments are used to describe the execution process of the computer p...

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Abstract

The invention belongs to the technical field of satellite navigation and positioning. The invention provides a mobile device position determination method and device and a mobile device, and the method comprises the steps: determining a plurality of candidate weeks according to the reference information of the mobile device when a satellite signal starts to be received, and carrying out the hit probability evaluation of the plurality of candidate weeks according to the reference information; wherein the reference information is a historical week number; selecting one by one according to the hit probabilities of the candidate week numbers from large to small, and performing residual calculation on a position associated equation of the mobile device according to the received ephemeris data and the selected candidate week numbers; after each candidate week number is selected, if the residual error is smaller than a preset threshold value, determining the candidate week number corresponding to the residual error as an effective week number; and solving the position associated equation based on the effective week number to obtain the position information of the mobile device. Accordingto the embodiment of the invention, the problem that the effective week number cannot be stably and efficiently selected is solved.

Description

technical field [0001] The present invention relates to the technical field of satellite navigation and positioning, in particular to a method and device for determining the position of a mobile device and the mobile device. Background technique [0002] The mobile device determines the current location of the mobile device by receiving satellite signals from the Global Navigation Satellite System. Satellite signals from GNSS include time of week (TOW) and week number (WN). The satellite signal includes consecutive frames sequentially composed of consecutive subframes, the time of the week is programmed into all the subframes constituting a frame, and the week number is only included in the first subframe. It takes 30 seconds for the mobile device to completely receive the data of one frame of the satellite signal. In the case of a cold start of the mobile device, the mobile device needs to wait for the satellite signal including the time of the week and the number of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/42G01S19/27
CPCG01S19/42G01S19/27Y02D30/70
Inventor 王名为高峰许祥滨孙功宪
Owner TECHTOTOP MICROELECTRONICS
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