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Continuous data optimization in positioning system

A database and business system technology, applied in the direction of selection device, radio/induction link selection arrangement, etc., can solve problems such as low efficiency, reach, and inability to rely on constant communication channels, and achieve the effect of optimizing data and avoiding suspicious data.

Inactive Publication Date: 2008-06-25
SKYHOOK WIRELESS
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Third, user-supplied data is subject to trunk bias
While these systems are becoming more reliable for these indoor use cases, they are inefficient in any wide area deployment
It is not possible to make the kind of detailed location measurements required over an entire city, and cannot rely on a constant communication channel with 802.11 access points throughout a metropolitan area to the degree required by these systems
Most importantly, outdoor radio propagation is fundamentally different from indoor radio propagation, making these indoor localization algorithms nearly useless in wide-area scenarios

Method used

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  • Continuous data optimization in positioning system
  • Continuous data optimization in positioning system
  • Continuous data optimization in positioning system

Examples

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Embodiment Construction

[0024] Preferred embodiments of the present invention provide a system and method for continuously maintaining and updating location data in a WiFi Positioning System (WPS) using public and private 802.11 access points. Preferably, clients using location data collected by the system use techniques for avoiding erroneous data in determining WiFi locations, and use newly discovered location information to improve the quality of previously collected and determined location information. Certain embodiments communicate with a central location access point reference database to provide the locations of newly discovered access points. Other embodiments notify the central location access point reference database of access points whose readings fall outside boundaries that should be expected, based on previous readings of the location of the access points. Access points whose readings fall outside of where they should be expected can be flagged as suspicious and filtered out from the t...

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Abstract

Methods and systems of continuously optimizing data in WiFi positioning systems. For example, data is monitored to infer whether a WiFi access point has moved or is new. In this fashion, data is continuously optimized. Likewise, suspect data may be avoided when determining the position of the WiFi-enabled device using such a system.

Description

technical field [0001] The present invention relates generally to location-based services, and in particular to methods for continuously optimizing or improving the quality of WiFi location data in such systems. Background technique [0002] The number of mobile computing devices has increased dramatically in recent years, creating a need for more advanced mobile and wireless services. Mobile e-mail, walkie-talkie services, multiplayer games and call follow are examples of how new applications are taking shape on mobile devices. Additionally, users are starting to demand / seek applications that not only utilize their current location, but share that location information with others. Parents want to keep track of their children, managers need to track the location of company delivery vehicles, and business travelers want to find the nearest pharmacy to get their prescriptions. All of these examples require people to know their own current location or the current location of ...

Claims

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Application Information

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IPC IPC(8): H04Q7/20G01S5/14
Inventor 爱德华·詹姆斯·摩根迈克尔·乔治·谢恩法施德·阿里扎德-沙迪兹鲁塞尔·吉普·琼斯
Owner SKYHOOK WIRELESS
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