Bluetooth and Wifi-based indoor positioning method, apparatus and system
An indoor positioning and bluetooth technology, applied in the field of mobile communication, can solve the problems of low positioning accuracy, increase cost, and use restrictions, and achieve the effects of fast and accurate positioning, improved positioning accuracy, and low hardware cost
Inactive Publication Date: 2017-02-22
MICRO DREAM TECHTRONIC NETWORK TECH CHINACO
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Problems solved by technology
This prior art has the following disadvantages: (1) Wifi positioning only reaches 1 meter to 20 meters, and the positioning accuracy is low
(2) Single positioning technology, if an error occurs, it cannot be corrected
This prior art has following shortcoming: (1) coverage is limited, and cost is bigger, because the frequency spectrum that UWB occupies is wider, then need increase cost if wanting to cover larger range; (3) does not support mobile phone, is restricted in use Restrictions, not conducive to promotion
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] Such as figure 1 As shown, it is a flow chart of an indoor positioning method based on Bluetooth and Wifi according to an embodiment of the present invention, and the method includes:
[0024] 101. When the mobile terminal is at a certain location indoors, acquire all Bluetooth wireless access point APs and all wireless fidelity Wifi APs that the mobile terminal can access at the location;
[0025] 102. Obtain received signal strength indication RSSI i...
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Embodiments of the present invention provide a Bluetooth and Wifi-based indoor positioning method, apparatus and system. The method comprises the steps of when a mobile terminal is at a certain position inside a room, acquiring all Bluetooth APs and all Wifi APs which the mobile terminal can access at the position; acquiring receive signal strength indicator (RSSI) information and media access control (MAC) information of all Bluetooth APs which the mobile terminal can access, and RSSI information and MAC information of all Wifi APs which the mobile terminal can access; performing weighted summation on the RSSI information and MAC information of all Bluetooth APs which the mobile terminal can access and the RSSI information and MAC information of all Wifi APs which the mobile terminal can access, so as to obtain position fingerprint information of the position in which the mobile terminal is; and sending the position fingerprint information of the position in which the mobile terminal is to a positioning server, so as to enable the positioning server to position the mobile terminal inside the room according to the position fingerprint information of the position in which the mobile terminal is and prestored position fingerprint information in a position fingerprint database. The indoor positioning accuracy of the mobile terminal is improved at a low AP hardware cost.
Description
technical field [0001] The present invention relates to the technical field of mobile communication, in particular to an indoor positioning method, device and system based on Bluetooth and Wifi. Background technique [0002] The iOS (Apple's mobile operating system) indoor positioning method based on Wifi (Wireless Fidelity) is a relatively popular one in prior art solutions, mainly based on the signal strength of Wifi hotspot AP (Access Point, wireless access point) , to calculate the specific position by propagation model method or fingerprint model method. Due to the relatively large coverage of Wi-Fi, it is more suitable for large-scale indoor positioning. Although the positioning accuracy of Wi-Fi is only at the meter level, its positioning technology is relatively mature and has been widely used in many fields. This prior art has the following disadvantages: (1) Wifi positioning only reaches 1 meter to 20 meters, and the positioning accuracy is low. (2) With a single...
Claims
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IPC IPC(8): H04W64/00H04W4/04G01S5/14G01S5/02
CPCH04W64/006G01S5/0252G01S5/14H04W4/04
Inventor 郑军
Owner MICRO DREAM TECHTRONIC NETWORK TECH CHINACO