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A grabbing flexible sorting method based on rfid spatial positioning technology

A space positioning and RFID tag technology, which is applied in the field of grasping flexible sorting based on RFID space positioning technology, can solve the problem that the sorting mechanism cannot control the position of the items to be sorted in real time, and cannot realize the precise positioning of the items on the conveyor belt, which is difficult to achieve Highly automated logistics sorting system and other issues to achieve low cost, improve precision and accuracy

Active Publication Date: 2021-01-19
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This project only uses RFID technology to read and write data, but cannot realize the precise positioning of the items on the conveyor belt. The sorting mechanism cannot control the position of the items to be sorted in real time, and it is difficult to realize a highly automated logistics sorting system.

Method used

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  • A grabbing flexible sorting method based on rfid spatial positioning technology
  • A grabbing flexible sorting method based on rfid spatial positioning technology
  • A grabbing flexible sorting method based on rfid spatial positioning technology

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Embodiment Construction

[0043] 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. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0044] Such as figure 1 , figure 2 As shown, a kind of grasping type flexible sorting method based on RFID spatial positioning technology of the present invention comprises the following steps:

[0045] Step 1, place the RFID tag on the preset position on the package, match the package information with the ID information of the RFID tag, and enter the package information and the ID informatio...

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Abstract

The invention belongs to the field of logistics sorting, and particularly discloses a grabbing type flexible sorting method based on the RFID space positioning technology. The method includes the steps of putting target packages with attached RFID tags on a moving conveying belt, obtaining radio frequency information of the RFID tags on the target packages to obtain periodic discontinuous phase values based on the time sequence of the RFID tags on the target packages, performing treatment through an improved unwrapping algorithm to obtain an unwrapping phase, calculating estimated coordinatesof the target packages at the moment of reading and writing the radio frequency information of the RFID tags on the target packages through an RFID reader-writer within the grabbing range W*L, modifying the estimated coordinates of the target packages to obtain actual coordinates of the target packages, and flexibly sorting the target packages according to the actual coordinates of the target packages through a sorting mechanism. By means of the method, the automatic logistics sorting precision and accuracy are effectively improved, and therefore the method is particularly suitable for sortingoccasions with weak light and a large number of packages.

Description

technical field [0001] The invention belongs to the field of logistics sorting, and more specifically relates to a grasping flexible sorting method based on RFID spatial positioning technology. Background technique [0002] Picking operation is the job with the most time, manpower and cost, and it is rising rapidly, becoming the biggest pain point in the logistics industry. Most of the existing logistics sorting systems use visual solutions, which cannot be applied on a large scale due to the high requirements for visual distance and light. [0003] RFID radio frequency identification technology can remotely obtain the ID information of the tag through the electromagnetic field emitted by the antenna device. In recent years, RFID positioning technology has received extensive attention and research. This project introduces RFID tag positioning technology into logistics automation sorting, and on the basis of RFID tag ID information identification, endows it with position aw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B07C3/08B07C3/12G06F16/29G06K7/10G06K17/00
CPCB07C3/08B07C3/12G06K7/10445G06K17/00G06F16/29
Inventor 陶波唐晶吴海兵郭子奇韩子琴张文婷尹周平
Owner HUAZHONG UNIV OF SCI & TECH
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