Geomagnetism-assisted indoor positioning method
An auxiliary room and geomagnetic technology, applied to location-based services, specific environment-based services, electrical components, etc., can solve problems such as the inability to guarantee the latest status of geomagnetic fingerprint database data, avoid geomagnetic field disturbances, and improve accuracy degree of effect
Inactive Publication Date: 2018-04-13
CHENGDUSCEON ELECTRONICS
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Problems solved by technology
[0004] The invention provides a geomagnetic-assisted indoor positioning method, which solves the problem that the current geomagnetic fingerprint library formation method is to traverse and collect division nodes one by one by professionals, and then update them regularly, resulting in the inability to ensure that the geomagnetic fingerprint library data is in the latest state.
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[0024] In the description of the present invention, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense unless otherwise clearly specified and limited. Disassembled connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
[0025] refer to figure 1 and figure 2 , a method for geomagnetically assisted indoor positioning, comprising the following steps in sequence:
[0026] A. According to the architectural design drawings, construct the indoor plane electronic map of the building.
[0027] B. Divide the location where geomagnetic data needs to be collected ...
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The invention provides a geomagnetism-assisted indoor positioning method which is used for solving the problem that in an existing geomagnetism fingerprint database forming method, partitioning nodesare traversed and acquired by professionals one by one and then updated regularly, and therefore it cannot be guaranteed that a geomagnetism fingerprint database is in a latest state. The geomagnetism-assisted indoor positioning method sequentially comprises the following steps that an electronic indoor plane map of a building is built; places where geomagnetism data needs to be acquired in a positioning area are divided; wireless positioning is conducted through a user terminal; a geomagnetic sensor is arranged in the user terminal; if positioning succeeds, the user terminal uploads a positioning result and information acquired by the geomagnetic sensor to a background server; if positioning fails, the positioning mode is switched to geomagnetism positioning, the geomagnetic sensor acquires geomagnetism positioning information and sends the geomagnetism positioning information to the background server through the user terminal; and the background server forms and updates the fingerprint database and returns the positioning result to the user terminal.
Description
technical field [0001] The invention relates to a geomagnetism-assisted indoor positioning method. Background technique [0002] Nowadays, urbanization is developing day by day, there are many high-rise buildings in the city, various large shopping malls, shopping centers, hospitals, communities, etc. People often lose their way and cause inconvenience when they are in them. Then there are various indoor positioning technologies, such as wifi, bluetooth, ultrasonic and so on. However, when these technologies are used in practice, unexpected emergencies will occur, and positioning cannot be performed, such as positioning equipment, signal nodes, etc. are insufficient in power and stop working; equipment damage is not discovered in time, etc. [0003] At present, it is necessary to rely on professionals to traverse the positioning area to manually collect the geomagnetic fingerprint database. The geomagnetic fingerprint database is updated slowly and the accuracy is poor; po...
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IPC IPC(8): H04W4/02H04W4/33H04W64/00
CPCH04W64/00
Inventor 李斌颜美匀蒋新王宽刘赳赳
Owner CHENGDUSCEON ELECTRONICS