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A Vision-based 3D Measurement Modeling Method for RFID Multi-Tag Network

An RFID tag, network three-dimensional technology, applied in measurement devices, collaborative devices, instruments, etc., can solve problems such as difficulty in applying real-time requirements, complex operation, and poor real-time performance.

Active Publication Date: 2021-05-28
江苏省质量和标准化研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the field of 3D image measurement and modeling, the existing methods use a single camera to perform 3D measurement and modeling of images, which requires constant adjustment of the camera orientation to obtain images of objects in the same state from different angles. The operation is complex, the real-time performance is poor, and it is difficult to apply Occasions with high real-time requirements
In the existing literature, there are relatively few reports on the application of a single camera for 3D measurement and modeling of images, and there are few reports on the use of image methods to perform 3D measurement and modeling of RFID multi-label networks.

Method used

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  • A Vision-based 3D Measurement Modeling Method for RFID Multi-Tag Network
  • A Vision-based 3D Measurement Modeling Method for RFID Multi-Tag Network

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Embodiment Construction

[0046]A three-dimensional measurement modeling method based on visual RFID multi-label network, including the following steps:

[0047]The first step: Building a test platform step, test platform consisting of 1-RFID reader, 2-reader antenna, 3-RFID tag, 4-RFID tag, 5-control computer, 6-servo motor, 7-vertical Camera, 8-horizontal camera, 9-guide rail, 10-turntable configuration, 4-RFID tag bracket bottom sticker, 1-RFID reader is connected to 2-reader antennas and 5-control computers, 7- The vertical camera and 8-horizontal cameras are connected to 5-control computers, and the RFID tag adopts the ultra-high frequency electronic tag -h47. The reader is used by the Impinj Speedway Revolution R420 reader. The reader antenna uses the Laird A9028 far field antenna, the largest RF output power is 30dBm, the test platform is likefigure 1 Indicated;

[0048]The second step: RFID tag vertically tops the image acquisition step, using a vertical camera to capture the turntable and the RFID tag, us...

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Abstract

Aiming at the needs of goods in and out information collection and goods inventory in modern smart warehousing and logistics, a vision-based RFID multi-label network 3D measurement and modeling method is proposed. By using two cameras to obtain images of RFID tags from multiple angles, the acquisition The image is processed by iterative threshold segmentation and morphological methods, and the three-dimensional coordinates of the RFID tag are obtained by using the template matching method. This method effectively reduces the complexity of the algorithm, and can obtain the three-dimensional coordinates of the RFID tag in real time. This invention has important theoretical and application value for modern intelligent warehousing and logistics.

Description

Technical field[0001]The present invention relates to the field of RFID technology and the Internet of Things, which involves the three-dimensional coordinate determination and network modeling of RFID multi-label networks, in particular to introducing a three-dimensional visual analysis method for three-dimensional measurement modeling, which belongs to the metering test.Background technique[0002]Radio Frequency Identification, RFID is a wide range of non-contact automatic identification technology, has been widely used in many fields such as modern logistics, intelligent transportation, production automation, especially in smart logistics, due to system knowledge Read the efficiency, you need to use a large number of RFID tags for batch goods to enter the library information collection and goods inventory, and at this stage, the modeling of RFID multi-label networks and the identification, distribution, arrangement of RFID multi-labels, arrangement, etc. Effective automatic measur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/24G06K17/00
CPCG01B11/24G06K17/00
Inventor 俞晓磊庄笑汪东华赵志敏陆东升刘振鲁刘梦婕董定邦
Owner 江苏省质量和标准化研究院