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Multi-label distance measurement method and system based on UWB distance measurement technology

A ranging method and multi-label technology, applied in the field of parking space positioning, can solve problems such as easy dislocation identification, and achieve the effects of high positioning accuracy, improved accuracy, and low system complexity

Active Publication Date: 2020-05-12
广州亚美智造科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a multi-tag ranging method based on UWB ranging technology, and a UWB ranging technology-based Multi-tag ranging system

Method used

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  • Multi-label distance measurement method and system based on UWB distance measurement technology
  • Multi-label distance measurement method and system based on UWB distance measurement technology
  • Multi-label distance measurement method and system based on UWB distance measurement technology

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Experimental program
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Embodiment 1

[0047] Such as figure 1 As shown, it is a flow chart of the multi-tag ranging method based on the UWB ranging technology in this embodiment.

[0048] This embodiment proposes a multi-tag ranging method based on UWB ranging technology, including the following steps:

[0049] S1: several tags in the same local area network respectively set initial semaphore information, wherein the initial semaphore information includes but not limited to tag identification information, signal strength of tags and base stations.

[0050] S2: The first tag performs ranging from several base stations in the same local area network, and uploads the ranging results to the server, and the several base stations store the tag identification information of the first tag.

[0051] S3: The first tag transmits a release semaphore signal, and other tags in the same local area network send their respective initial semaphore information to the first tag after receiving the release semaphore signal.

[0052]...

Embodiment 2

[0090] This embodiment proposes a multi-tag ranging system based on the UWB ranging technology based on the multi-tag ranging method based on the UWB ranging technology proposed in Embodiment 1. Such as image 3 As shown, it is a schematic structural diagram of a multi-tag ranging system based on UWB ranging technology in this embodiment.

[0091] A multi-tag ranging system based on UWB ranging technology proposed in this embodiment includes:

[0092] A plurality of UWB tags 1, the UWB tag 1 is set on the vehicle, wherein the UWB tag 1 includes a communication module 11 and a judgment module 12, the communication module 11 is used to transmit or receive signals, obtain the information between the UWB tag 1 and the UWB base station 2 Signal strength information, and for uploading its ranging result to the parking space location server 3; Judgment module 12 is used to carry out logic judgment according to the signal strength information that communication module 11 receives;

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Abstract

The invention provides a multi-label distance measurement method based on a UWB distance measurement technology. The distance measurement method comprises the following steps: the initial semaphore information of a plurality of labels in a local area network is set; the first label performs distance measurement with a base station and uploads a result to the server; the first label transmits a semaphore release signal, and other labels return initial semaphore information after receiving the semaphore release signal; the first label sends a ranging signal to a label with the maximum signal intensity; the label with the maximum signal intensity carries out distance measurement with the base station, uploads a result to the server, and then initializes semaphore information by the label; allthe labels update the initial semaphore information, and the first label transmits a semaphore release signal again; and the first label judges according to the updated initial semaphore informationof the first label and other labels, and selects the label with the maximum signal intensity to repeatedly measure the distance. The invention further provides a multi-label distance measuring systembased on the UWB distance measuring technology, wherein the multi-label distance measuring system applies the method.

Description

technical field [0001] The present invention relates to the technical field of parking space positioning, and more specifically, to a multi-tag ranging method and system based on UWB ranging technology. Background technique [0002] The current methods for parking space recognition include image recognition technology, RFID (radio frequency identification) technology, WIFI triangulation technology, Bluetooth RSSI ranging technology, and UWB (ultra-wideband) ranging technology. Among them, the UWB distance measurement technology installs UWB base stations in the parking spaces in the parking lot, and installs UWB tags on the vehicles at the same time. When the vehicles enter the parking spaces, the UWB tags on the vehicles send extremely narrow pulses, and the UWB base stations in the parking spaces receive the pulses sent by them. , and then calculate the distance between the tag and the base station, and identify the parking space. At the same time, the UWB tag sends the ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S11/02G08G1/14H04W4/40H04W64/00
CPCG01S11/02G08G1/14H04W4/40H04W64/00
Inventor 邹国源潘钟声温煦江勇
Owner 广州亚美智造科技有限公司