Positioning system and method based on ultra-wide band technology

A positioning method and a positioning terminal technology, which are applied in the field of positioning systems based on ultra-wideband technology, can solve the problems of time inconsistency between transmission delay base stations, etc., achieve the effect of improving positioning accuracy and avoiding the difficult problem of base station time synchronization

Inactive Publication Date: 2015-05-06
SHENZHEN COSON ELECTRONICS
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  • Abstract
  • Description
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Problems solved by technology

[0005] The purpose of the present invention is to provide a positioning system and positioning method based on ultra-wideband technology, which is used to sol

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  • Positioning system and method based on ultra-wide band technology
  • Positioning system and method based on ultra-wide band technology
  • Positioning system and method based on ultra-wide band technology

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] figure 1 It is a schematic diagram of the node arrangement of the positioning system provided by an embodiment of the present invention. figure 2 It is a schematic diagram of processing the difference in arrival delay of received signals in the positioning system provided by an embodiment of the present invention. Specifically, there is a transmission delay when the positioning tag and the reference tag transmit the UWB positioning signal through the antenna, and there is a receiving delay when each base station receives the positioning signal from the positioning tag and the reference tag...

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Abstract

The invention provides a positioning method. The positioning method is characterized by comprising enabling a terminal to be positioned to issue a positioning request; according to the positioning request, obtaining signal transmission data among the terminal to be positioned, a reference tag and multiple base stations; computing the estimated coordinate of the terminal to be positioned according obtained signals, performing multiple iterative convergence on the estimated coordinate to obtain the position coordinate of the terminal to be positioned. The positioning method can effectively improve the positioning precision. The invention also provides a positioning system.

Description

technical field [0001] The present invention relates to the field of wireless communication technology, and in particular to a positioning system and positioning method based on ultra-wideband technology. Background technique [0002] With the continuous development of human society, people's requirements for wireless communication are also increasing. Emerging wireless network technologies (such as WiFi, ZigBee, Bluetooth, Ultra Wide Band (UWB) technology) It has been widely used in factories and other fields. The UWB wireless positioning technology has the advantages of low power consumption, good anti-multipath effect, high security, low system complexity, real-time performance, scalability, etc., has extremely high time resolution, and can reach centimeter-level positioning. Accuracy has become a hotspot in future wireless positioning technology and is regarded as one of the key technologies for next-generation wireless communication. [0003] In the prior art, UWB pos...

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Application Information

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IPC IPC(8): H04W64/00
Inventor 熊丹丁宁吴晖于练张钦丽
Owner SHENZHEN COSON ELECTRONICS
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