A wireless positioning method and system based on wi-fi

A wireless positioning system and wireless positioning technology, applied in the field of Wi-Fi-based wireless positioning methods and systems, capable of solving problems such as lack of Wi-Fi wireless positioning technology

Inactive Publication Date: 2011-12-21
SHENGLE INFORMATION TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of this, the present invention provides a Wi-Fi-based wireless positioni

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  • A wireless positioning method and system based on wi-fi
  • A wireless positioning method and system based on wi-fi
  • A wireless positioning method and system based on wi-fi

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Embodiment Construction

[0022] In order to make the above-mentioned features and advantages of the present invention more comprehensible, exemplary embodiments are given below together with accompanying drawings and described in detail as follows.

[0023] The existing Wi-Fi positioning technology adopts the combination of empirical test and signal propagation model, uses the wireless access point (AP) address and location information stored in the database, and obtains the user according to the relationship between signal strength and distance. The distance between the terminal and the AP, and then the location information of the user terminal is obtained. However, this technology has its limitations, because the existing APs in the database are fixed and cannot be expanded, which limits the expansion of the Wi-Fi positioning system, and due to the limited reference points, the positioning accuracy is also insufficient.

[0024] Therefore, the present invention discloses a wireless positioning techn...

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Abstract

The present invention discloses a wireless positioning method and system based on Wi-Fi, which performs positioning more accurately according to the strength of the wireless signal, and at the same time allows users to add new APs, thereby extending the small-range positioning system to a large-scale positioning system to achieve the purpose of sharing multiple user terminals. The positioning method includes the steps of acquiring positioning information of a user terminal to be positioned, calculating the position information of the user terminal according to the positioning information, and storing a new wireless access point into a library, wherein the positioning information includes the wireless access point detected by the user terminal Address and Wi-Fi signal strength, the steps of storing the new wireless access point include: calculating the distance between the user terminal and the new wireless access point according to the Wi-Fi signal strength; The distance between the wireless access points is obtained to obtain the location information of the new wireless access point; the address and location information of the new wireless access point are stored in the database.

Description

technical field [0001] The present invention relates to the technical field of wireless positioning, in particular to a wireless positioning method and system based on Wi-Fi. Background technique [0002] Location information plays a very important role in people's daily life. For example, in tourist attractions, museums and other environments that are relatively unfamiliar to tourists, the use of positioning and navigation information can provide them with more accurate and convenient services; in the process of hospital management, positioning information can be used in hospitals to track assets and equipment and patients, keep abreast of and grasp the real-time location information of key staff, assets and medical equipment, thereby helping healthcare institutions reduce costs, improve workflow and improve patient care service quality. [0003] At present, the Global Positioning System (Global Positioning System, GPS) is the most common way to obtain the location informa...

Claims

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Application Information

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IPC IPC(8): H04W4/02H04W64/00H04W84/12H04B17/00
Inventor 陈大年
Owner SHENGLE INFORMATION TECH SHANGHAI
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