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Positioning system and method based on ultrasounds

A positioning system, ultrasonic technology, applied in the field of positioning system, can solve the problem of no positioning method

Inactive Publication Date: 2014-07-23
SENGITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no ultrasound-based positioning method, and a positioning method that combines ultrasound and mobile Internet technology

Method used

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  • Positioning system and method based on ultrasounds
  • Positioning system and method based on ultrasounds
  • Positioning system and method based on ultrasounds

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Experimental program
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Embodiment Construction

[0033] Such as figure 1 As shown, in the ultrasound-based positioning system 1 of the present invention, it includes a sound source 2 and a position detection device 3; wherein, the sound source emits ultrasound with a frequency in the range of 20-50 kHz and variable intensity, and the frequency range is selected to be Because it has exceeded the audible limit, that is, ultrasound in this frequency range is inaudible to humans, while the ultrasound can still be received and detected by the position detection device 3 .

[0034] The ultrasound-based positioning system 1 applies frequency, intensity variation (ie waveform) or a combination of both of ultrasound to identify specific signaling for position detection purposes. Such as figure 2 As shown, the ultrasound (that is, the ultrasound signal) has two dimensions, that is, the sound wave frequency and the sound wave intensity change, and the position detection device 3 can also identify the information from the sound source...

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Abstract

The invention relates to a positioning system and method based on ultrasounds. The system includes sound sources and a position detection device. The sound sources send ultrasounds variable in intensity. The intensity change of the ultrasounds is unique to each sound source and the number value of the intensity change of the ultrasounds meets the following criterion: Nc>logI(Ns); the positioning device identifies specific sound sources and information from the sound sources based on the frequency and intensity change of the ultrasounds or combination of the two; an application program which is useful to positioning is installed and operated in the position detection device so as to decompose the ultrasounds into signal components corresponding to different sound sources and thus the intensity I of the ultrasounds and a light source to which the ultrasounds belongs are determined. Based on the ultrasounds, the initial data of a positioning target is obtained so that interferences are not generated to the auditory feeling of people and thus interference-free positioning is realized; positioning is performed through use of the frequency and intensity change of the ultrasounds or combination of the frequency and intensity change so that an objective of single positioning data and diversified positioning methods is realized.

Description

technical field [0001] The present invention relates to a positioning system and method, more specifically, to a positioning system and method based on ultrasound. Background technique [0002] The existing location positioning is generally based on the Global Positioning System (GPS) or radio frequency signals to locate the target source of interest, and only simple location data are obtained after positioning. However, there is still no ultrasound-based positioning method, and a positioning method that combines ultrasound and mobile Internet technology. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an ultrasound-based positioning system and method for the above-mentioned defects of the prior art. [0004] The technical solution adopted by the present invention to solve the technical problem is: construct a positioning system based on ultrasound, which includes a sound source and a position detection device; ...

Claims

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Application Information

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IPC IPC(8): G01S5/18
CPCG01S5/18
Inventor 林晓锋林晓维
Owner SENGITAL
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