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Position information privacy protecting method

A privacy protection and location information technology, applied in wireless communications, security devices, electrical components, etc., can solve problems such as risks and user privacy exposure, and achieve the effect of reducing business load, improving location privacy security, and reducing dependence.

Inactive Publication Date: 2014-05-21
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while users enjoy location-based services, they also bring risks
When a mobile user needs location information services, such as finding nearby points of interest or nearby friends, it needs to send a service request and its own location information to the server; There is a security threat of privacy exposure

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0016] The specific implementation plan is as follows:

[0017] 1) Divide the entire service area into 50×80 grid areas, each grid area is defined as C ij , where 1≤i≤50, 1≤j≤80, correspondingly, we also divide the location service information into each grid area, defined as I ij , where 1≤i≤50, 1≤j≤80;

[0018] 2) Each mobile device P has a cache for caching the location service information I obtained from the server and nearby devices ij . This information has an expiry date and is discarded upon expiration.

[0019] 3) Located in grid area C ij mobile device P, if owning I ij , then periodically broadcast a beacon Bp to neighbor devices to inform them of their location information.

[0020] 4) C ij Other neighboring devices in the area receive a beacon signal (possibly multiple beacons from different devices) and do not have an I ij , then select the neighbor device with the best signal quality, and obtain I from it ij information. Other devices can also get the I...

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PUM

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Abstract

The invention relates to the field of position services, particularly to a position privacy protecting method. According to the position privacy protecting method, a whole service area is divided into n*m mesh areas, position service information is correspondingly partitioned into every mesh area Iij; every mobile device is provided with a cache for caching the corresponding position service information; when processing the Iij, a mobile device P in a sub area Cij periodically broadcasts a beacon Bp to the neighboring devices to inform the neighboring devices that the sub area processes the corresponding position information; if other mobile devices in the Cij area receive the beacon and meanwhile do not process the Iij, the neighboring device which has the highest signal quality is chosen for providing Iij information; other devices obtaining the Iij through a mixed receiving mode; when needing the position information and if not having the information in the cache, one mobile device can require the information from a server. The position information privacy protecting method improves the transmission efficiency of the position information, reduces the dependency of users on position servers more effectively and improves the privacy security of the position services.

Description

technical field [0001] The invention relates to the field of location services, and more specifically, to a method for protecting location privacy. Background technique [0002] Location-based services (LBS, the English full name is Location Based Services) refers to obtaining the location information of mobile terminal users through the wireless network of telecom mobile operators or other positioning methods (such as GPS, Beidou), and providing value-added services based on the location information. Serve. Due to the development of positioning technology, such as the use of GPS, services based on location information are developing very rapidly. Ordinary users can enjoy location-based services through handheld devices, such as mobile phones and tablet computers. Location-based services can provide a variety of Various information, such as social networking, route navigation, finding the nearest restaurant, check-in service on Weibo, etc. However, while users enjoy locati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/00
Inventor 叶阿勇
Owner FUJIAN NORMAL UNIV
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