Barcode capturing method and barcode reader
A barcode reader and barcode technology, applied in instruments, inductive record carriers, electromagnetic radiation induction, etc., can solve the problems of reduced barcode decoding efficiency, troubled user operations, and inability to decode successfully, and achieve the effect of improving decoding efficiency.
Inactive Publication Date: 2018-10-12
QISDA SUZHOU +1
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Problems solved by technology
Since the user cannot know the reason for the decoding failure, the user can only repeatedly move the barcode reader closer to or away from the barcode to scan, which reduces the decoding efficiency of the barcode
If the decoding failure is caused by the reflective area in the barcode image, no matter how the user changes the distance between the barcode reader and the barcode, the decoding cannot be successful, which will cause trouble in the operation of the user
Method used
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[0045] In order to have a further understanding of the purpose, structure, features and functions of the present invention, the detailed description is as follows in conjunction with the embodiments.
[0046] see Figure 1A to Figure 3 , Figure 1A is a schematic diagram of a barcode reader 1 according to an embodiment of the present invention, Figure 1B is a schematic diagram of a sample image of a sample barcode, figure 2 for Figure 1A Functional block diagram of the barcode reader 1 in, image 3 A flow chart of establishing a comparison table of barcode image features and the relative distance between the barcode reader 1 and the barcode for the barcode capture method according to the embodiment of the present invention.
[0047] Such as figure 2As shown, the barcode reader 1 of the present invention includes an image capture unit 10, a processing unit 12, at least one fill light 14, a warning unit 16 and a memory unit 18, wherein the processing unit 12 is electrical...
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The invention discloses a barcode capture method and a barcode reader. The barcode capture method comprises the following steps: using a barcode reader to capture a target image of a target barcode; judging whether there are two reflective areas in the target image; when judging that there are two reflective areas in the target image, calculating reference characteristic parameters corresponding to the two reflective areas; judging whether the reference characteristic parameters are consistent with predetermined characteristic parameters corresponding to an effective decoding distance; when judging that the reference characteristic parameters are consistent with the predetermined characteristic parameters corresponding to the effective decoding distance, judging that the current distance between the barcode reader and the target barcode is an effective decoding distance; and when judging that the reference characteristic parameters are inconsistent with the predetermined characteristic parameters corresponding to the effective decoding distance, judging that the current distance between the barcode reader and the target barcode is an ineffective decoding distance.
Description
technical field [0001] The present invention relates to a barcode capture method and a barcode reader, in particular to a barcode capture method and a barcode reader that can effectively improve decoding efficiency. Background technique [0002] A barcode is a graphic identification element that arranges multiple black bars and blanks with different widths according to certain coding rules to express a set of information. Bar codes can mark the country of manufacture, manufacturer, commodity name, production date, book classification number, mail start and end location, category, date and other information, so they are widely used in many fields such as commodity circulation, book management, postal management, banking system, etc. a wide range of applications. [0003] When reading a barcode with a barcode reader, whether the distance between the barcode reader and the barcode is an effective decoding distance and whether there is a reflective area in the barcode image wil...
Claims
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IPC IPC(8): G06K7/10G06K7/14
CPCG06K7/10881G06K7/1473
Inventor 吴壮为
Owner QISDA SUZHOU