A barcode scanner is a device used to read the information contained in a barcode. They can be classified as barcode scanners, omni-directional barcode scanners, handheld wireless barcode scanners and so on. There are also 1D and 2D barcode scanners. The structure of a barcode reader usually consists of the following parts: light source, receiving device, photoelectric conversion elements, decoding circuit, computer interface. The basic working principle of a barcode scanner is as follows: the light emitted by the light source is directed through the optical system onto the barcode symbol. The reflected light is imaged on the photoelectric converter through the optical system and interpreted by the decoder as a digital signal that can be directly accepted by the computer.
1. omni-directional scanner cannot read the barcode correctly reasons and solutions
1.1Light source problem:
The light source is very important for reading the barcode, because the light source must provide enough brightness and uniformity to ensure that the barcode is clearly visible. If the omni directional scanner has light source problems, such as insufficient light source brightness, uneven beam distribution, etc., it will result in the scanner not being able to read the barcode accurately.
1.2 Quality Problem:
The quality of the barcode has a great impact on the scanning effect. For example, if the colour of the barcode is too dark or the reflection is too high, it will affect the scanner's recognition ability. In addition, poor print quality, blurred or damaged barcodes can also affect the scanning results.
1.3 Scanning head design problems:
The design of the omni-directional bar code scanner head may have the problem of angular deviation or unstable scanning speed. If the scanning head cannot accurately capture the characteristics of the barcode, or if it is distorted or blurred during movement, it will cause the scanner to fail to read the barcode correctly.
1.4 Software Algorithm Problems.
Scanning algorithms are critical to bar code reading. Software algorithms must support different types of barcodes, be able to overcome the effects of ambient light, reduce the false code rate, and have the ability to perform fast identification.
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2. Solution
2.1 For the light source problem, a more optimised light source design can be used to ensure sufficient brightness and uniformity. Meanwhile, for the barcode printing problem, the quality and accuracy of the barcode printing can be improved to ensure that the barcode is clearly visible. For scanning head design problems, the scanning head structure can be optimised to improve the tolerance of angular deviation and the stability of scanning speed. For software algorithms, the scanning algorithms can be upgraded to improve recognition of different types of barcodes and resistance to ambient light interference. If it is a hardware problem, please contact the technical confirmation.
Omni-directional barcode readers are widely used in various industries, especially retail, logistics and warehousing, and have greatly improved scanning efficiency and accuracy. However, omni-directional barcode scanners still have the problem of not being able to read barcodes correctly, which is also a common technical difficulty. For more product information on omni-directional qr scanners, please contact us!
Phone: +86 07523251993
E-mail: admin@minj.cn
Official website: https://www.minjcode.com/
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Post time: Dec-21-2023