Indoor positioning method, system and positioning platform

An indoor positioning and positioning platform technology, applied in electrical components, wireless communication, etc., can solve the problems of installing additional hardware devices, limited physical range, and insufficient positioning accuracy

Active Publication Date: 2014-12-03
CHINA TELECOM CORP LTD
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Problems solved by technology

[0003] However, these methods or systems all have some deficiencies or limitations: either the positioning accuracy is not enough (such as wireless base station signals), or additional hardware devices need to be installed (such as RFID, ultrasound), or the physical range of the application is limited (such as Bluetooth’s The transmission distance is generally only tens of meters), etc.

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  • Indoor positioning method, system and positioning platform
  • Indoor positioning method, system and positioning platform
  • Indoor positioning method, system and positioning platform

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Embodiment Construction

[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0038] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0039] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as any limitation of the invention, its application or uses.

[0040] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the...

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Abstract

The invention discloses an indoor positioning method and system and a positioning platform, and relates to the technical field of positioning of the mobile Internet. The method includes: obtaining prior probability of wireless signal strength detected at reference points according to the wireless signal strength of a positioned terminal and a signal strength probability distribution diagram of the reference points; obtaining posterior probability according to the prior probability and based on a Bayesian decision; and multiplying the posterior probability with a matrix of transition probability of the reference points, and outputting the reference point with the maximal transition probability as a positioning result of the positioned terminal. The method, system and platform build the indoor wireless signal strength probability distribution diagram through a transfer HMM model to realize a universal method for accurate positioning, and by combination of a wireless signal strength acquisition and preprocessing mechanism and a probability distribution matching method based on the transfer HMM model, an indoor accurate positioning service with good experience can be provided to a user.

Description

technical field [0001] The invention relates to the technical field of mobile internet positioning, in particular to an indoor positioning method, system and positioning platform. Background technique [0002] At present, there are already WiFi (Wireless Fidelity, wireless fidelity), wireless base station signals (such as GSM (Global System of Mobile communication, Global System for Mobile Communications), CDMA2000 (Code Division Multiple Access, code division multiple access) or WCDMA (Wideband Code Division Multiple Access, broadband code division multiple access)) , Bluetooth, RFID (Radio Frequency Identification, radio frequency identification), ultrasound and other wireless signal sources to achieve indoor positioning methods and systems are under research and initially put into application. [0003] However, these methods or systems all have some deficiencies or limitations: either the positioning accuracy is not enough (such as wireless base station signals), or addit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00
Inventor 孔勇平张玉良钟致民杨广龙苏少毅梁峥余冬苹王颖
Owner CHINA TELECOM CORP LTD
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