QR two-dimension bar code recognition method and system based on field programmable gate array

Abstract

The invention provides a two-dimensional bar code recognition system based on a field programmable gate array (FPGA) and a realization method thereof. An FPGA core chip, a bar code acquisition camera and a liquid crystal display screen are adopted to construct a hardware platform of the bar code recognition system. Functions realized by the whole system comprise the acquisition of a two-dimensional bar code image, the displaying of the bar code image, the decoding of a bar code, the real-time displaying of decoding data on the liquid crystal display screen, and the sending of the decoding data through a network. The whole bar code recognition system is realized under an embedded system based on the FPGA, and provides a simple and quick symbolic information extraction method.

Description

technical field [0001] The invention belongs to the technical field of barcode identification, and relates to a field programmable gate array (FPGA)-based QR two-dimensional barcode identification method and system, that is, an FPGA-based QR code identification technology. Background technique [0002] Barcode technology is an emerging technology developed on the basis of computer technology and information technology that integrates coding, printing, identification, data collection and processing. The barcode that people usually see printed on the product package is a one-dimensional barcode, which is composed of a group of regularly arranged bars, spaces and their corresponding characters, indicating the identification of certain information. Among them, the bar is in dark color, and the space is in light color, which is used for scanning and identification of barcode reading equipment: the corresponding characters (that is, characters for human recognition) are composed o...

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Problems solved by technology

According to detailed market research, most of the two-dimensional barcodes are developed abroad. Although many two-dimensional barcodes have become international or domestic standards, the key technologies for various two-dimensional barcode recognition are still abroad. In the hands of the company, although there are a few companies or research institutions in China that are also researching similar two-dimensional barcode reading equipment, there is still a big gap with foreign countries in terms of reading rate and reading speed. The technology has also taken confidentiality measures, which makes the research of two-dimensional barcode technology have far-reaching significance.

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