Indoor positioning system, indoor positioning method and mobile terminals
A mobile terminal and indoor positioning technology, which is applied in the field of indoor positioning methods and mobile terminals, and can solve problems such as insufficient environmental protection, energy consumption, and inconvenient implementation
Inactive Publication Date: 2016-07-27
SAMSUNG GUANGZHOU MOBILE R&D CENT +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, active terminals using wifi and zigbee methods need to design power supply lines or replace batteries regularly, which consume energy and are not environmentally friendly
At the same time, there are many considerations in the system design of the active terminal, which is not easy to realize
Method used
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[0040] The present invention is described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the same reference numerals denote the same elements throughout.
[0041] It should be understood that although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections do not should be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section...
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Provided are an indoor positioning system, an indoor positioning method and mobile terminals.The indoor position system comprises multiple surface acoustic wave (SAW) sensors arranged in a building and at least one mobile terminal entering the building; each mobile terminal comprises an SAW reader, a signal intensity detection unit, a memory, a controller and a display unit; the SAW readers send query signals and receive response signals from the SAW sensors; the signal intensity detection units detect signal intensities of the received response signals; the memories store IDs of the SAW sensors, two-dimensional coordinates of the SAW sensors and an indoor map of the building; the controllers determine the IDs of the SAW sensors on the basis of the received response signals so as to obtain the two-dimensional coordinates of the SAW sensors, calculate two-dimensional coordinates of the mobile terminals on the basis of the two-dimensional coordinates of the SAW sensors and the signal intensities of the received response signals and determine positions of the mobile terminals in the building according to the two-dimensional coordinates of the mobile terminals; the display units display the positions of the mobile terminals in the building on the indoor map.
Description
technical field [0001] The present invention relates to an indoor positioning technology based on surface acoustic waves, and more specifically relates to an indoor positioning system based on surface acoustic waves, an indoor positioning method and a mobile terminal that can save resources and be easy to design. Background technique [0002] Existing outdoor positioning systems generally use the GPS principle to locate. However, when the user enters the room, the user's terminal cannot receive GPS satellite signals, so the GPS positioning method cannot function. [0003] On the other hand, existing indoor positioning systems generally perform RSSI strength analysis based on active signals such as wifi and zigbee, thereby performing positioning calculations. However, active terminals using wifi and zigbee methods need to design power supply lines or replace batteries regularly, which consume energy and are not environmentally friendly. At the same time, there are many cons...
Claims
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Login to View More IPC IPC(8): G01S5/18G01S11/14H04M1/725H04W4/04H04W64/00H04M1/72403
CPCH04W64/003G01S5/18G01S11/14H04M1/72403
Inventor 黄凯付堉皓郝锐
Owner SAMSUNG GUANGZHOU MOBILE R&D CENT