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Fused positioning method and device

A technology of fusion positioning and base station positioning, which is applied in the direction of measuring devices, satellite radio beacon positioning systems, instruments, etc., can solve problems such as fusion positioning errors and positioning errors, and achieve the effect of improving accuracy

Active Publication Date: 2012-10-17
BEIJING UNIV OF POSTS & TELECOMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing fusion positioning method of GNSS and WiFi, if the GNSS positioning accuracy is not high, relying too much on WiFi positioning information or relying too much on GNSS positioning information when the WiFi positioning accuracy is not high, will lead to large fusion positioning errors or even positioning errors

Method used

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  • Fused positioning method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] This embodiment provides a fusion positioning method, which provides a fusion positioning method for improving positioning accuracy for the fusion of GPS positioning and base station positioning. see figure 1 , the method flow provided by this embodiment is specifically as follows:

[0048] 101: Obtain GPS positioning information and base station positioning information, and obtain an HDOP value;

[0049] 102: Determine the weight of the GPS positioning information and the base station positioning information in the positioning result according to the HDOP value, and obtain the positioning result according to the GPS positioning information, the base station positioning information and the determined weights.

[0050] Wherein, according to the HDOP value, the weights of the GPS positioning information and the base station positioning information in the positioning result are determined, specifically including:

[0051] When the HDOP value is greater than or equal to t...

Embodiment 2

[0069] Embodiment two

[0070] This embodiment provides a fusion positioning method. Combining the content of the first embodiment above, this embodiment takes the positioning frequency of the base station as a reference and takes 1.8 seconds as an example to illustrate the fusion positioning method of GPS positioning and base station positioning. . see figure 2 , the method flow provided by this embodiment is specifically as follows:

[0071] 201: Obtain GPS positioning information and base station positioning information, and obtain an HDOP value;

[0072] For this step, this embodiment does not limit the manner of obtaining GPS positioning information and base station positioning information. In practical applications, GPS positioning information and base station positioning information can be obtained respectively according to the positioning frequency according to the existing technology. When obtaining the HDOP value, the HDOP value can be obtained by parsing the rec...

Embodiment 3

[0105]This embodiment provides a fusion positioning device, which is used to implement the fusion positioning methods provided in the first and second embodiments above. see Figure 4 , the device consists of:

[0106] The first obtaining module 401 is used to obtain GPS positioning information and base station positioning information, and obtain HDOP values;

[0107] A determining module 402, configured to determine the weight of the GPS positioning information and the base station positioning information in the positioning result according to the HDOP value obtained by the first obtaining module 401;

[0108] The second obtaining module 403 is configured to obtain a positioning result according to the GPS positioning information and the base station positioning information obtained by the first obtaining module 401 and the weight determined by the determining module 302 .

[0109] Wherein, the manner in which the first obtaining module 401 obtains the GPS positioning infor...

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Abstract

The invention discloses a fused positioning method and device, belonging to the technical field of positioning. The method comprises the following steps of: acquiring the positioning information of GPS (Global Positioning System) and the positioning information of a base station, and acquiring an HDOP (Horizontal Dilution of Precision) value; determining the weight values of the GPS positioning information and the base station positioning information in a positioning result according to the HDOP value; and acquiring the positioning result according to the GPS positioning information and the base station positioning information as well as the determined weight values. The device comprises a first acquisition module, a determination module and a second acquisition module. According to the invention, the positioning result is acquired by determining the weight values of the GPS positioning information and the base station positioning information in the positioning result according to theHDOP value so as to improve the accuracy of fused positioning.

Description

technical field [0001] The invention relates to the field of positioning technology, in particular to a fusion positioning method and device. Background technique [0002] With the development of positioning technology, there are more and more location-based positioning applications. Indoor positioning methods mainly include RFID (Radio Frequency Identification, radio frequency identification), Zigbee (Zigbee), WiFi (Wireless Fidelity, wireless fidelity), etc.; outdoor The positioning methods mainly include positioning based on satellites, such as GPS (Global Positioning System, Global Positioning System) positioning and the like. In order to meet the needs of obtaining accurate location information anytime and anywhere, fusion positioning is particularly important. Wherein, fusion positioning refers to positioning with two or more positioning technologies. [0003] At present, there are many ways for indoor and outdoor fusion positioning, such as realizing the fusion posi...

Claims

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Application Information

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IPC IPC(8): G01S19/46
Inventor 邓中亮张能元余彦培袁协王佳曹佳雯
Owner BEIJING UNIV OF POSTS & TELECOMM