A positioning system and method within predetermined space

Abstract

The invention provides a positioning system and method within a predetermined space. The system includes: N secondary ultrasonic transmitting units, wherein each secondary ultrasonic transmitting unitin the N secondary ultrasonic transmitting units is used for transmitting a secondary ultrasonic positioning signal containing the identification information of the respective secondary ultrasonic transmitting unit, and N is a positive integer of at least 3; a main ultrasonic transmitting unit that is used for transmitting a main ultrasonic positioning signal containing identification informationof the main ultrasonic transmitting unit, wherein the main ultrasonic transmitting unit and the N secondary ultrasonic transmitting units are positioned on the same plane in the predetermined space;the N secondary ultrasonic transmitting units are located at the vertexes of a regular polygon respectively, and the main ultrasonic transmitting unit is arranged in the center of the regular polygon.A first hexagonal frustum is erected at the arrangement point of the main ultrasonic transmitting unit, and the main ultrasonic transmitting unit is arranged on the first hexagonal frustum; a respective second hexagonal frustum is erected at the arrangement point of each secondary ultrasonic transmitting unit, and each secondary ultrasonic transmitting unit is arranged on the respective second hexagonal frustum at the respective arrangement point.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of wireless communication, and more specifically, to a positioning system and method in a predetermined space. Background technique [0002] With the rapid increase of data services and multimedia services, people's demand for positioning and navigation is increasing, especially in complex indoor environments, such as buildings, airport halls, exhibition halls, warehouses, supermarkets, libraries, underground parking lots, mines, etc. In the environment, it is often necessary to determine the location information of the mobile terminal or its holder, facilities and objects indoors. However, limited by conditions such as positioning time, positioning accuracy, and complex indoor environments, relatively complete positioning technologies cannot be well utilized at present. [0003] In addition, in small outdoor areas such as factories, companies, communities, and building groups with...

AI Technical Summary

Problems solved by technology

The above various positioning technologies have their own advantages and disadvantages, but it does not mean that these technologies should be fully used because of their advantages or abandoned because of their disadvantages

No matter what kind of positioning means in the prior art, it is difficult to maintain the accuracy of positioning between indoor floors, and how to maintain the convenience of use and low cost at the same time, there are more or less defects

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