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Automatic establishing method of self-growing-type fingerprint

A construction method and technology of fingerprints, which are applied in special data processing applications, measuring devices, instruments, etc., can solve problems affecting the application of fingerprint positioning technology and a large workload of fingerprints, so as to facilitate popularization and application, improve construction speed, The effect of extended coverage

Active Publication Date: 2014-06-25
严格集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for independently establishing self-growth fingerprints based on user uploaded data, so as to solve the problem that a large amount of work needs to be invested in the establishment and maintenance of fingerprints in the process of fingerprint positioning, thereby affecting the fingerprint positioning technology. application

Method used

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  • Automatic establishing method of self-growing-type fingerprint
  • Automatic establishing method of self-growing-type fingerprint
  • Automatic establishing method of self-growing-type fingerprint

Examples

Experimental program
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specific Embodiment approach 1

[0041] Specific implementation mode one: as figure 1 , 3 As shown in and 4, a kind of self-growing fingerprint self-establishment method described in this embodiment is realized according to the following steps:

[0042] Step 1. Offline part

[0043] Step 1 (1), establish a "seed area":

[0044] A basic fingerprint (initial fingerprint) is measured at a key location of the building, which is called a "seed area"; where users in the seed area can perform fingerprint positioning;

[0045] Step 1 (2), determine the fingerprint of the current service area:

[0046] The fingerprint map of the current service area includes the "seed area" and the real-time extended growth area formed by the reference point (self-growth extended reference point) calculated according to the online part of the user-side uploaded data; the uploaded data refers to the user's position coordinates and The field strength value (RSS vector) corresponding to the location; and provide the fingerprint of the...

specific Embodiment approach 2

[0067] Embodiment 2: The key position of the building mentioned in step 1 of this embodiment refers to the area where the flow of people is large or concentrated.

[0068] For example, for gate entrances, elevator entrances, corners, aisles, exits or stairwells, a small but high-quality fingerprint is measured at key positions of the building (such as entrances, corners, etc.), which is called the "seed area". ”, the user can perform fingerprint positioning in this area.

specific Embodiment approach 3

[0069] Specific implementation mode three: In step one (three) of this implementation mode, when the fingerprint grows to a certain extent, it means that the maturity function Tr is less than its threshold value Tr th The current fingerprint at that time.

[0070] It is also possible to judge whether the corresponding RP is accurate enough and whether it can be added to the fingerprint according to the proximity of the uploaded data point to the corresponding RP point.

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Abstract

The invention discloses an automatic establishing method of a self-growing-type fingerprint, and relates to position fingerprint locating technologies. The automatic establishing method aims to solve the problem that a large amount of workload is needed in fingerprint establishing and maintaining in the fingerprint locating process. The offline part of the method comprises the steps that a seed zone is established, a fingerprint of a current service area is determined, RSS estimation is conducted on corresponding reference points according to user position prediction results and RSS values uploaded by the online part, a fingerprint is updated, and after the fingerprint grows to a certain degree, the fingerprint of the current service area is determined again. The online part of the method comprises the steps that a receiver at a user-side collects RSS vectors; a user conducts fingerprint locating by using the fingerprints provided by the offline part; the position of the user is predicted by using the filtering algorithm; whether the user leaves the service area or not is judged. By means of the automatic establishing method, the workload needing to be consumed in a fingerprint locating system in the fingerprint establishing process is greatly reduced, the establishing speed of the fingerprint is increased and is beneficial for popularization and application of the fingerprint locating technologies in the commercialization aspect.

Description

technical field [0001] The invention relates to a method for establishing a fingerprint map, and relates to a position fingerprint positioning technology. Background technique [0002] The implementation of position fingerprint positioning can generally be divided into two stages: the first stage is the training / offline stage, the main work is to collect the signal characteristic parameters of each reference node position in the desired positioning area, such as signal field strength, multipath phase angle component power etc. A set of fingerprint information is corresponding to a specific location to form a location fingerprint database. The second stage is the positioning / online stage. The receiver is used to measure the parameters of the received signal, and the matching algorithm is used to determine which set of data matches with the database, so as to obtain the actual location of the user. When using the position fingerprint positioning method, the classic positionin...

Claims

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Application Information

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IPC IPC(8): H04W64/00G01S5/00G06F17/30
Inventor 孟维晓邹德岳韩帅陈雷巩紫君
Owner 严格集团股份有限公司