Chinese-sensible code and construction method thereof

Abstract

The invention discloses a Chinese-sensible code and a construction method thereof. The method comprises the following steps of: analyzing input data streams and converting the input data streams into codeword sequences; placing the codeword sequences in a matrix in a subsection way; generating format information, arranging the length-width ratio of each module size to be 1.2:1, constructing a Chinese-sensible code sign and saving the generated image into a set format; and outputting an image with the set format to a nine-pin type printer and printing the image to a multi-connected note according to the set resolution.

Description

technical field [0001] The invention relates to the field of two-dimensional barcodes, in particular to a Chinese Sensible code and a construction method thereof. Background technique [0002] The Chinese Sensible Code national standard GB / T21049-2007 defines a matrix two-dimensional barcode. In the standard 5.2, it is introduced that the Chinese Sensible Code symbol is a square array composed of n nominal square modules. In 5.2.2 of the standard, it is introduced that the imaging pattern of Chinese Sensible code is composed of 4 position detection patterns, which are respectively located at the upper left corner, upper right corner, lower left corner and lower right corner of the Chinese Sensible code symbol. The size of the position detection graphic is 7*7 modules. From the structure, it can be regarded as 5 overlapping squares of different sizes aligned in the lower right corner. They are 7*7 dark-colored modules and 6*6 light-colored modules. module, 5*5 dark modules, ...

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Problems solved by technology

[0003] The module described in the above standard is a square or a nominal square. This size definition has no problem for barcode printers, but for special printing equipment, such as printing with a 9-pin dot matrix printer, there are big problems. First of all, The real image printing resolution of the 9-pin dot matrix printer does not support the same horizontal and vertical resolutions, that is to say, it cannot print a good square two-dimensional code; secondly, using the half-dot printing technology of the printer, it is possible to forcibly print a square two-dimensional code Code, but the size ratio does not meet the requirements of the two-dimensional code. At the same time, the more serious phenomenon is that the paper is smashed due to the large overlap of dots. Generally, dot matrix printers are used to print legal bills, which need to be stored for a long time, and the paper is broken. If it is rotten, it cannot be used at that time, let alone it can be used after long-term storage.

In this case, the relevant definitions in the Chinese Sensible Code standard cannot be applied, and improvements need to be made

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