CN103533644A - Two-dimensional bar code-based indoor positioning method - Google Patents
Two-dimensional bar code-based indoor positioning method Download PDFInfo
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- CN103533644A CN103533644A CN201310493552.6A CN201310493552A CN103533644A CN 103533644 A CN103533644 A CN 103533644A CN 201310493552 A CN201310493552 A CN 201310493552A CN 103533644 A CN103533644 A CN 103533644A
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- dimensional bar
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- response code
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Abstract
The invention relates to a two-dimensional bar code-based indoor positioning method which uses a mobile terminal indoors to acquire a two-dimensional bar code and WiFi signals and then carries out estimation and positioning according to the acquired data. The two-dimensional bar code-based indoor positioning method includes the following steps that: (1) the mobile terminal is switched on to carry out accurate positioning and collect information; (2) the name, intensity and other information of WiFi and the content of the two-dimensional bar code are uploaded to a server; (3) meanwhile, the mobile terminal starts to analyze the information of the picture of the two-dimensional bar code; (4) after the information is obtained by the mobile terminal, the principle of pinhole imaging and an actual geometrical model of imaging are used for working out the position of the mobile terminal relative to the two-dimensional bar code; (5) according to need, the position, length and width information of the two-dimensional bar code are converted into longitudinal and latitudinal coordinates. Aimed at the problems existing in the current indoor positioning technology, the invention provides an indoor positioning system and the method based on two-dimensional bar codes and WiFi signals, which have high positioning precision and can effectively solve the problem of low positioning precision caused by large pedestrian flow, a large number of obstacles and the like.
Description
Technical field
The present invention relates to bar codes technique field, more specifically, the present invention relates to a kind of localization method for Quick Response Code.
Background technology
Quick Response Code (2-dimensional bar code) is a kind of certain geometric figure (for example square or rectangular block) to be arranged in the plane of two-dimensional directional according to certain rule, with the bar code of record or expression specific data information, each geometric figure has wherein formed a bar code element of Quick Response Code.Normally, this geometric figure can have specific optical characteristics, and for example color or gamma characteristic, so that when the image of this Quick Response Code of recognition, different geometric figures can be distinguished by recognizing apparatus.If unlatching indoor navigation, this error is intolerable so.And in conjunction with Quick Response Code, realize the method for location, also do not have at present.
Summary of the invention
The object of this invention is to provide and a kind ofly in this technology of indoor use, realize location comparatively accurately, for indoor navigation etc. provides possibility.
The technical solution used in the present invention is:
Indoor orientation method based on Quick Response Code, is characterized in that, comprises the steps:
1), gather 2 D code information;
2), search out the title of wifi and connect;
3), the information content of wifi and Quick Response Code is sent in processing module by mobile phone;
4), by processing module, the information content of Quick Response Code is analyzed;
5), by wifi signal strength signal intensity, calculate mobile phone location;
6), in conjunction with 2 D code information, orient particular location.
In described step 1), two-dimension code image information comprises word, image, data message.
Described step 4) is analyzed content and is comprised: by the shared number of pixels in each limit of quadrangle generating in the photo of Quick Response Code place, according to each pixel, calculate the focal length of photo.
The Computing Principle of focal length is pinhole imaging system principle.
Beneficial effect of the present invention:
The present invention is directed to the problem that current indoor positioning technology exists, a kind of indoor locating system and method based on Quick Response Code and wifi signal is provided, its positioning precision is high, can effectively overcome that flow of the people is large, bar is many etc. and cause the problem that positioning precision is not high.
Embodiment
Below the present invention is described further.
Embodiment:
Indoor orientation method based on Quick Response Code, comprises the steps:
1), gather Quick Response Code word, image, data message;
2), search out the title of wifi and connect;
3), the information content of wifi and Quick Response Code is sent in processing module by mobile phone;
4), by processing module, the information content of Quick Response Code is analyzed,, by the shared number of pixels in each limit of quadrangle generating in the photo of Quick Response Code place, according to each pixel, by pinhole imaging system principle, calculate the focal length of photo;
5), by wifi signal strength signal intensity, calculate mobile phone location;
6), in conjunction with 2 D code information, orient particular location.
Claims (4)
1. the indoor orientation method based on Quick Response Code, is characterized in that, comprises the steps:
1), gather 2 D code information;
2), search out the title of wifi and connect;
3), the information content of wifi and Quick Response Code is sent in processing module by mobile phone;
4), by processing module, the information content of Quick Response Code is analyzed;
5), by wifi signal strength signal intensity, calculate mobile phone location;
6), in conjunction with 2 D code information, orient particular location.
2. the indoor orientation method based on Quick Response Code as claimed in claim 1, is characterized in that: in described step 1), two-dimension code image information comprises word, image, data message.
3. the indoor orientation method based on Quick Response Code as claimed in claim 1, is characterized in that: described step 4) is analyzed content and comprised: by the shared number of pixels in each limit of quadrangle generating in the photo of Quick Response Code place, according to each pixel, calculate the focal length of photo.
4. the indoor orientation method based on Quick Response Code as claimed in claim 3, is characterized in that: the Computing Principle of focal length is pinhole imaging system principle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310493552.6A CN103533644A (en) | 2013-10-21 | 2013-10-21 | Two-dimensional bar code-based indoor positioning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310493552.6A CN103533644A (en) | 2013-10-21 | 2013-10-21 | Two-dimensional bar code-based indoor positioning method |
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| CN103533644A true CN103533644A (en) | 2014-01-22 |
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| CN201310493552.6A Pending CN103533644A (en) | 2013-10-21 | 2013-10-21 | Two-dimensional bar code-based indoor positioning method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219992A1 (en) * | 2016-06-22 | 2017-12-28 | 平安科技（深圳）有限公司 | Indoor navigation method for handheld terminal, handheld terminal, and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102542235A (en) * | 2011-12-09 | 2012-07-04 | 河北广联信息技术有限公司 | One-code multi-recognition method of two-dimensional codes |
| US20130247137A1 (en) * | 2011-12-30 | 2013-09-19 | Rohit Raj Puri | Methods and systems for automatically configuring and re-configuring electronic security interfaces |
| CN103491631A (en) * | 2013-09-26 | 2014-01-01 | 舒泽林 | Indoor positioning system and method based on two-dimension code and wifi signals |
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2013
- 2013-10-21 CN CN201310493552.6A patent/CN103533644A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102542235A (en) * | 2011-12-09 | 2012-07-04 | 河北广联信息技术有限公司 | One-code multi-recognition method of two-dimensional codes |
| US20130247137A1 (en) * | 2011-12-30 | 2013-09-19 | Rohit Raj Puri | Methods and systems for automatically configuring and re-configuring electronic security interfaces |
| CN103491631A (en) * | 2013-09-26 | 2014-01-01 | 舒泽林 | Indoor positioning system and method based on two-dimension code and wifi signals |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219992A1 (en) * | 2016-06-22 | 2017-12-28 | 平安科技（深圳）有限公司 | Indoor navigation method for handheld terminal, handheld terminal, and storage medium |
| US10317217B2 (en) | 2016-06-22 | 2019-06-11 | Ping An Technology (Shenzhen) Co., Ltd. | Indoor navigation method of handheld terminal, handheld terminal, and storage medium |
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Application publication date: 20140122 |