Determinant bar code decoding chip

Abstract

The invention provides a determinant bar code decoding chip, which comprises a scanning module, a boundary identification module, a direction identification module, a bar blank boundary processing module, a symbol parameter identification module, a symbol character acquisition module and a decoding module, wherein the scanning module generates a screening coordinate; the boundary identification module reads a bar code image according to the screening coordinate to acquire a bar blank boundary point of the bar code image; the direction identification module calculates a bar code direction according to the bar blank boundary point acquired by the boundary identification module; the bar blank boundary processing module processes the bar code image according to the bar code direction to acquire a bar blank boundary in the bar code image; the symbol parameter identification module identifies the symbol parameter of the bar code according to the bar blank boundary to acquire a symbol parameter; the symbol character acquisition module calculates a symbol character according to the bar blank boundary and the symbol parameter; and the decoding module converts the symbol character into bar code information; and the state control module is used for controlling the working state and processing flow of the above modules. The determinant bar code decoding chip is suitable for performing streamline operation and parallel processing on the bar code image with high processing speed by adopting a hardware streamline structure.

Description

【Technical field】 [0001] The invention relates to the technical field of barcode identification, in particular to a determinant 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...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiency 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 determinant barcode decoding chip, which can correctly identify the bar space of the barcode information to improve the success rate of decoding

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