Bar code decoding chip

Abstract

The invention provides a bar code decoding chip which comprises a scanning module, a boundary recognition module, a direction recognition module, a bar space boundary processing module, a symbolic parameter recognition module, a symbolic character acquiring module and a code decoding module. The scanning module is used for producing scanning coordinates; the boundary recognition module is used for reading a bar code image according to the scanning coordinates and calculating read image pixel points to acquire a bar space boundary point of the bar code image; the direction recognition module is used for calculating a bar code direction according to the bar space boundary point acquired by the boundary recognition module; the bar space boundary processing module is used for processing the bar code image according to the bar code direction to acquire a bar space boundary in the bar code image; the symbolic parameter recognition module is used for recognizing a symbolic parameter of the bar code according to the bar code direction to acquire the symbolic parameter; the symbolic character acquiring module is used for calculating a symbolic character according to the bar space boundary and the symbolic parameter; and the code decoding module is used for converting the symbolic character into bar code information. The bar code decoding chip adopts a hardware streamline structure, is suitable for performing assembly line work and parallel processing on the bar code image and has a high processing speed.

Description

【Technical field】 [0001] The invention relates to the technical field of barcode identification, in particular to a barcode decoding chip. 【Background technique】 [0002] Bar code technology is an emerging technology developed on the basis of computer technology and information technology that integrates coding, printing, identification, data collection and processing. Barcode technology is widely used in business, library management, warehousing, post and telecommunications, transportation and industrial control due to its advantages of fast, accurate, reliable and low cost, and is bound to play an important role in the emerging "Internet of Things" applications. role. [0003] Currently widely used barcodes include one-dimensional barcodes and two-dimensional barcodes. A one-dimensional barcode, also known as a linear barcode, is composed of multiple "bar" and "space" units arranged in parallel, and the barcode information is expressed by the different widths and positio...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defect that the decoding device in the prior art relies on the user to correctly sense the direction of the barcode through the scanning unit, and cannot adjust the decoding direction according to the direction of the barcode, the present invention provides a barcode decoding chip, which can correctly identify the barcode information, Improve decoding success rate

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