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Position determining method and device

A technology for determining the method and current location, which is applied in the network field and can solve problems such as positioning failure and limited positioning range

Active Publication Date: 2019-04-30
BEIJING SANKUAI ONLINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned first solution needs to accumulate more historical positioning data, and the positioning range is limited, resulting in positioning failure in new environments; the second solution fails to locate when the user's location exceeds the Wi-Fi range

Method used

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  • Position determining method and device
  • Position determining method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] refer to figure 1 , which shows a flow chart of specific steps of a method for determining a location provided in Embodiment 1 of the present invention.

[0050] Step 101 , acquiring historical positioning data of at least one reference user of a first user, the reference user being a user whose movement trajectory and the movement trajectory of the first user satisfy a preset condition.

[0051] Wherein, the first user is a user performing location positioning.

[0052] The historical positioning data of the reference user is pre-saved in the terminal cache or other storage locations.

[0053] The embodiment of the present invention is applied to offline positioning. In practical applications, when the terminal can be connected to the network, online positioning is performed through the network; when the terminal cannot be connected to the network, offline positioning is performed through the historical positioning data pre-saved in the terminal.

[0054] In the pri...

Embodiment 2

[0064] refer to figure 2 , which shows a flow chart of specific steps of a method for determining a location provided in Embodiment 2 of the present invention.

[0065] Step 201, searching for users whose motion trajectory is less than or equal to a preset similarity threshold to obtain a reference user of the first user.

[0066] Wherein, the similarity threshold is used to determine whether the motion trajectories of two users are similar, and can be set according to the similarity calculation formula of motion trajectories and actual application scenarios, and is not limited in the embodiment of the present invention.

[0067] The similarity of motion trajectories can be measured by the distance between trajectories. Specifically, firstly, the location-time joint probability distribution matrix of each user is generated; then, the initial similarity between the motion trajectories of different users based on the distribution matrix is ​​calculated by KL divergence, and th...

Embodiment 3

[0097] refer to image 3 , which shows a structural diagram of a device for determining a position provided in Embodiment 3 of the present invention, and the details are as follows.

[0098] The reference positioning data acquisition module 301 is configured to acquire historical positioning data of at least one reference user of the first user, the reference user is a user whose movement trajectory and the movement trajectory of the first user satisfy a preset condition.

[0099] The position determination module 302 is configured to determine the current position of the first user according to the historical positioning data of each reference user.

[0100] To sum up, an embodiment of the present invention provides a device for determining a position, the device comprising: a reference positioning data acquisition module, configured to acquire historical positioning data of at least one reference user of a first user, the reference user is a sports The user whose trajectory...

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Abstract

The invention provides a position determination method and device, and the method comprises the steps: obtaining the historical positioning data of at least one reference user of a first user, and enabling the reference user to be a user with the similarity between a motion track and a motion track of the first user meeting a preset condition; And determining the current position of the first useraccording to the historical positioning data of each reference user. Positioning can be carried out according to historical positioning data of users with similar movement tracks, the range of reference historical positioning data is expanded, and the situation that the range of reference historical positioning data exceeds Wi-is avoided in a new environment and beyond the Wi-. And positioning fails in a Fi range.

Description

technical field [0001] The embodiments of the present invention relate to the field of network technologies, and in particular, to a method and device for determining a position. Background technique [0002] The positioning system can accurately determine the user's location, including both online and offline. In practical applications, offline positioning is used when online positioning fails. [0003] In the prior art, offline positioning mainly includes two solutions. Among them, the first scheme saves the location data and network information to the cache during the online positioning process, so that the location data can be obtained from the cache according to the current network information during offline positioning; the second scheme is based on the currently scanned Wi-Fi strength Change calculates the change vector of the distance to determine the changed position based on the original position. [0004] However, the above-mentioned first solution needs to acc...

Claims

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Application Information

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IPC IPC(8): H04W4/02H04W64/00
CPCH04W4/023H04W4/025H04W64/00
Inventor 秦博段航孙翔
Owner BEIJING SANKUAI ONLINE TECH CO LTD
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