A method of indoor moving target localization based on doppler sensor network

A technology of moving target and positioning method, applied in the field of indoor moving target positioning based on Doppler sensor network, can solve problems such as increasing cost and increasing system complexity, achieve large portability, suppress multipath effect and background scattering, and be flexible The effect of the configuration

Active Publication Date: 2022-03-22
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If it is implemented in an active way, the complexity of the system will be greatly increased, and the cost will also be increased

Method used

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  • A method of indoor moving target localization based on doppler sensor network
  • A method of indoor moving target localization based on doppler sensor network
  • A method of indoor moving target localization based on doppler sensor network

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Embodiment Construction

[0035] Combined with the accompanying drawings, describe the working principle of the system in detail.

[0036] Such as figure 1 As shown, the specific implementation adopts an indoor moving target positioning system mainly composed of at least five wireless radar network nodes and a main control node. Each wireless radar network node is mainly composed of an independent reference clock and a Doppler with a wireless communication link interface. Composed of radar sensors, the Doppler radar sensors of multiple wireless radar network nodes and the main control node have the same wireless communication link interface, and there is no clock synchronization relationship between the main control node and independent wireless radar network nodes. The Doppler radar sensor of the network node and the main control node are connected through a wireless communication link interface to form a wireless link.

[0037] Such as figure 2 As shown, the wireless radar network node includes a ...

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Abstract

The invention discloses an indoor moving target positioning method based on a Doppler sensor network. Including multiple wireless radar network nodes and master control nodes, each wireless radar network node includes a reference clock and a Doppler radar sensor, but there is no clock synchronization relationship established between them, the Doppler radar sensor and the master control node of multiple wireless radar network nodes Form a wireless link; the wireless radar network node detects the Doppler information of the moving target, and the master control node reads the Doppler information obtained by each wireless radar network node through the wireless link in a time-division multiplexing polling manner, and fuses The position and displacement information of the moving target in the indoor multipath environment is obtained. The invention has the characteristics of multi-node connection, low-power transmission, working in a multi-path indoor environment, can flexibly configure the position and quantity of sensors, and realize positioning and tracking of different dimensions and different moving targets, and has a good application prospect.

Description

technical field [0001] The invention belongs to the field of radar sensing and relates to an indoor moving target positioning method based on radar principles, signal processing and antenna design, in particular to an indoor moving target positioning method based on a Doppler sensor network. Background technique [0002] The sensor-based positioning method has attracted more and more attention from researchers in the fields of mobile robots and civil facilities. In addition, with the development of positioning technology, operators and manufacturers have started to focus on indoor positioning. Since humans spend a lot of time in private and public indoor areas, providing accurate indoor localization services is of great practical importance. [0003] Despite some significant progress, wireless indoor positioning still has numerous technical challenges. The main reason is that there is very complex electromagnetic wave propagation in the indoor environment, which leads to s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/87G01S13/50G01S13/66H04W4/029H04W4/33H04W84/18
CPCG01S13/87G01S13/50G01S13/66H04W4/029H04W4/33H04W84/18Y02D30/70
Inventor 朱铖凯冉立新
Owner ZHEJIANG UNIV
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