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Audio positioning system and method based on single signal source

A positioning system and positioning method technology, applied in the field of positioning systems, to achieve the effects of stable measurement technology, large effective working range, and easy support for mass mobile phones

Inactive Publication Date: 2019-12-13
苏州普息导航技术有限公司
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  • Abstract
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Problems solved by technology

3) The audio signal receiving equipment is simple, such as the microphone of a smartphone, and there is no threshold for the popularization of this technology

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  • Audio positioning system and method based on single signal source
  • Audio positioning system and method based on single signal source
  • Audio positioning system and method based on single signal source

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Embodiment Construction

[0027] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] Such as figure 1 As shown, this patent discloses an audio positioning system based on a single signal source, which includes two subsystem units: a signal source transmitting micro base station 1 and a positioning terminal 2, wherein there are multiple signal source transmitting micro base stations 1, generally at least Three, the positioning terminal 2 can be one or more. The audio signal transmitting base station 1 is used to transmit audio signals to the positioning scene. The audio signal transmitting base station 1 is equipped with an audio signal generating and transmitting module 11, which is specially used to generate and transmit audio signals externally. The audio signal generating and transmitting ...

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Abstract

The invention provides an audio positioning system based on a single signal source, and the system comprises a plurality of signal source transmitting micro base stations which transmit audio signalsin a positioning scene in a specified time region one by one; a positioning terminal comprising an audio signal receiving module and a positioning algorithm processing module, and calculating the position of the positioning terminal; and a time synchronization module for realizing time synchronization among the signal source transmitting micro base stations and time synchronization between the positioning terminal and the signal source transmitting micro base stations. Compared with an existing indoor positioning technology, the audio positioning system has the advantages of being low in cost,high in positioning precision, large in effective working range, easy to install and maintain, capable of supporting public mobile phones and the like.

Description

technical field [0001] The invention relates to the technical field of positioning systems, in particular to a system and method for positioning using audio signals. Background technique [0002] Although the Global Navigation Satellite System (Global Navigation Satellite System) such as the GPS system of the United States, the Beidou system of China and the Galileo system of Europe can provide high-precision positioning solutions in open outdoor spaces, their signals are transmitted from an altitude of more than 20,000 kilometers. When transmitted to the surface of the earth, the signal strength is too weak to penetrate into the indoor space, so it cannot provide a reliable positioning solution for the indoor space. However, people spend 80% of their time indoors, and artificial intelligence applications are increasingly demanding high-precision indoor positioning. [0003] At present, the indoor positioning technology mainly relies on radio frequency signals including Wi-...

Claims

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Application Information

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IPC IPC(8): G01S5/30G01S5/00
CPCG01S5/0045G01S5/30
Inventor 陈锐志叶锋
Owner 苏州普息导航技术有限公司
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