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A logistics code recognition and sorting method based on multi-task deep learning

A technology of deep learning and code recognition, applied in the field of smart logistics, can solve the problems of no unified standard, complex coding standard system, and inability to detect the integrity of the appearance of goods, etc.

Active Publication Date: 2020-08-18
ZHEJIANG HANQIANG AUTOMATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1) High cost, susceptible to external environmental interference and affect the correct identification of information;
[0008] 2) Upstream suppliers are required to provide corresponding cooperation in the production process. There is currently no unified standard for RFID, and the coding standard system is complicated;
[0009] 3) Barcode and RFID technology alone cannot detect the integrity of the appearance of the goods, etc.
Logistics codes will be affected by factors such as temperature, humidity, and light, resulting in deformation, blurring, missing, and falling off, which will reduce the effectiveness of logistics code identification and affect the smooth progress of the entire logistics transportation business.

Method used

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  • A logistics code recognition and sorting method based on multi-task deep learning
  • A logistics code recognition and sorting method based on multi-task deep learning
  • A logistics code recognition and sorting method based on multi-task deep learning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0070] refer to Figure 1 to Figure 6 , a logistics code recognition system based on multi-task deep learning, such as Image 6 As shown, the main process is as follows: when the goods to be sorted on the assembly line move to a certain station of the assembly line, the system automatically triggers multiple cameras to take images of the goods from various directions; then, based on the Faster R-CNN goods logistics coding label detection Locate and obtain the logistics coding label image on the cargo image; then, use the Hough transform method to process the logistics coding label image to extract the straight line on the logistics coding label; further, according to the logistics coding label tilt angle detected by the Hough transform The image is corrected; further, check whether the corrected logistics code label image is in an upside-down state, and if it is in an upside-down state, perform 180° rotation processing, so that the obtained logistics code label image can be pr...

Embodiment approach 2

[0120] The above is similar to Embodiment 1, except that the size of the logistics coding labels used for identification is different, and the logistics coding labels participating in the network training are the same as the logistics coding labels used for identification.

Embodiment approach 3

[0122] The above is similar to Embodiment 1, except that the number of digits used to identify the code in the logistics code label is different.

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Abstract

The invention provided a logistics code identification and sorting method based on multi-task deep learning. A method used for acquiring logistics code label images in all directions, a designing scheme capable of conveniently and visually detecting and positioning logistics code labels, a designing scheme suitable for character positioning and the segmented character size, character pattern and intervals between characters of the logistics code labels, a Faster R-CNN network used for detecting and positioning the logistics code labels, an algorithm module used for deviation rectifying of thelogistics code labels and detecting regular and reverse states of the characters, a character segmentation algorithm module used for conducting segmentation treatment on the characters on the logistics code labels, a multitask deep convolutional neural network used for deep learning and training identification, and a sorting control module used for controlling the sorting action according to the identified logistics code are included. According to the logistics code identification and sorting method based on multi-task deep learning, the problem that a large number of goods with irregular shapes and flexible packaging cannot be quickly and automatically sorted is effectively solved.

Description

technical field [0001] The invention relates to the application of artificial intelligence, digital image processing, convolutional neural network and computer vision in the identification and sorting of logistics goods labels, and belongs to the field of intelligent logistics. Background technique [0002] The real-time collection of goods packaging appearance information in supply chain logistics operations is an important prerequisite for realizing logistics automation and intelligence. The most frequent operation is the out / in warehouse operation and the automatic identification and sorting of goods in the distribution center. The application of the online image recognition technology of goods in the out / in warehouse and automatic sorting process of the distribution center has good expansion value. [0003] The current mainstream method mainly completes the identification of logistics codes through two-dimensional identification codes and radio frequency identification m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B07C3/06B07C3/10B07C3/18G06K9/20G06K9/34G06N3/08
Inventor 盛力峰关亮林宏鋆盛雷雷王路贾宝荣王显杰聂学雯王权
Owner ZHEJIANG HANQIANG AUTOMATION EQUIP
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