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Method and device for accurately obtaining AP position of POI

An accurate location and accurate technology, applied in the field of accurately obtaining the AP location of POI, can solve the problems of not supporting indoor positioning, real location error, etc.

Active Publication Date: 2014-06-11
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the current GPS positioning technology does not support indoor positioning, users usually can only request positioning services in open outdoor places, which leads to the user coordinates obtained by the system are often concentrated on outdoor streets, while The location of the AP usually tends to be close to the area where the user coordinates are concentrated, that is, it will be close to the outdoor street, and there is a certain error with its real position.

Method used

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  • Method and device for accurately obtaining AP position of POI
  • Method and device for accurately obtaining AP position of POI
  • Method and device for accurately obtaining AP position of POI

Examples

Experimental program
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Embodiment 1

[0043] figure 1 The flow chart of the method for accurately obtaining the AP location of POI provided by Embodiment 1 of the present invention, as shown in figure 1 As shown, the method includes:

[0044] S101. Establish a POI database and an SSID database in advance.

[0045]In order to be able to determine the corresponding POI according to the SSID in the user positioning request, and to correct the estimated AP position of the POI, it is necessary to establish a POI database and an SSID database in advance. The name and geographic location of POIs are stored in the POI database, and such information can be provided by a third-party map data provider. In addition, the POI database can further store relevant information such as the contact information of the POI, so that in the subsequent steps, the relevant information can be retrieved according to the SSID to obtain the matching POI. The relevant information can be obtained in the following ways, but not limited to: The...

Embodiment 2

[0069] image 3 A schematic diagram of a device for accurately obtaining the AP position of a POI provided in Embodiment 2 of the present invention, as shown in image 3 As shown, the device includes: a request analysis unit 10 , a POI determination unit 20 , a position estimation unit 30 , a position correction unit 40 , and may also include: a database establishment unit 50 .

[0070] In order to be able to determine the corresponding POI according to the SSID in the user positioning request, and to correct the estimated AP position of the POI, it is necessary to establish a POI database and an SSID database in advance. The name and geographic location of POIs are stored in the POI database, and such information can be provided by a third-party map data provider. In addition, the POI database can further store relevant information such as the contact information of the POI, so that in the subsequent steps, the relevant information can be retrieved according to the SSID to obt...

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Abstract

The invention provides a method and device for accurately obtaining an AP (Access Point) position of a POI (Point of Interest). The method includes: S1: pre-establishing a POI database and an SSID database; S2: according to SSID information in user positioning requests collected in a collection period, retrieving the SSID database and obtaining a corresponding POI and according to an MAC address in the user requests collected in the collection period and user coordinates obtained through the positioning, calculating the AP position of the POI; S3: using the accurate position of the POI stored in the POI database, correcting the AP position of the POI, obtained through the calculation. The method and device for obtaining the AP position of the POI is capable of automatically calculating the AP position of the POI and using the actual position of the POI further to correct the AP position obtained through the calculation so as to obtain accurate position information of the AP.

Description

【Technical field】 [0001] The present invention relates to wireless positioning technology, in particular to a method and device for accurately acquiring the AP position of POI. 【Background technique】 [0002] Today, POI (Point of Interest) point of interest data has become necessary information in various map service applications. Usually, POI data is collected and provided by a third-party map data provider, which contains precise location data of POIs. When a user requests a location service, the location request sent to the system includes AP (Access Point, wireless access point) information of POIs around the user, such as SSID information and MAC address. With the need to expand the functions of map service applications, companies that provide location services often calculate and save the location of POI APs based on user location requests and user coordinates. However, since the current GPS positioning technology does not support indoor positioning, users usually ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W64/00
Inventor 田辉
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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