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Waterproof invisible bar code based on electrical detection mode and detection method

An electrical detection and bar code technology, applied in the field of bar codes, can solve the problems of easy imitation of bar codes.

Active Publication Date: 2019-08-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a waterproof invisible barcode and detection method based on an electrical detection method, and solve the problem that existing barcodes are easy to imitate from the perspective of materials and detection methods

Method used

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  • Waterproof invisible bar code based on electrical detection mode and detection method
  • Waterproof invisible bar code based on electrical detection mode and detection method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 As shown, a waterproof invisible barcode based on an electrical detection method includes a substrate 1, a barcode electrode 2 and a connecting electrode 3, the barcode electrode 2 and the connecting electrode 3 are located on the substrate, and the barcode electrode 2 is located on the connecting electrode 3, and several barcode electrodes 2 are connected together by connecting electrodes 3, and both the barcode electrodes 2 and the connecting electrodes 3 are transparent.

[0029] In the present embodiment, the base 1 is transparent plastic polyethylene terephthalate (PET), which has a certain degree of flexibility, so that devices made of polyethylene terephthalate also have a certain degree of flexibility. The flexibility can be attached to some non-planar surfaces. Further, the area of ​​the substrate 1 is 8cm*5cm. Described barcode electrode 2 has six electrodes, and its width is respectively 0.4cm, 0.4cm, 0.4cm, 0.8cm, 0.8cm, 0.8cm, and the len...

Embodiment 2

[0032] In this example, on the basis of Example 1, the electrical output of the barcode prepared in Example 1 is tested to verify the feasibility of the invisible barcode proposed by the present invention. In this example, we use human skin as the test material. Furthermore, we swipe each barcode electrode at a constant speed with our finger, and then observe whether its output electrical signal is sequentially related to the width of the barcode electrode.

[0033] Here's how it works: Initially, both the finger and the barcode electrodes are electrically neutral. When the finger touches the ITO on the barcode and rubs against it, equal and opposite dissimilar charges will be generated in the finger and the ITO, and when the finger leaves the ITO on the barcode, the charge will flow out of the barcode electrode, In this way, a corresponding pulse electrical signal output will be generated at the bar code electrode. When the fingers pass across all the barcode electrodes at a ...

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Abstract

The invention discloses a waterproof invisible bar code based on an electrical detection mode and a detection method. The waterproof invisible bar code comprises a substrate, a plurality of bar code electrodes and a connecting electrode; the bar code electrodes and the connecting electrode are located on the substrate, the bar code electrodes are located on the same side of the connecting electrode, the bar code electrodes are connected with the connecting electrode, and the bar code electrodes and the connecting electrode are transparent; the electrical detection mode is based on the principle of triboelectricity generation, so that the bar code can be made of a transparent material, and the made bar code pattern is invisible; and different bar code electrode widths correspond to the widths and amplitudes of different output electric signals, so that the bar code can be identified by outputting the widths and amplitudes of the pulse electric signals.

Description

technical field [0001] The invention relates to the technical field of barcodes, in particular to a waterproof invisible barcode used in the fields of product anti-counterfeiting and information security, as well as its detection principle and detection method. Background technique [0002] Barcode is a common anti-counterfeiting mark in life. It forms a graphic identifier through different widths and blanks of barcodes and different reflectivity according to certain coding rules. It can carry a lot of information, such as production location, production date, Mail starting and ending points, product information and book classification, etc. Therefore, it has a wide range of application scenarios, especially in security information, product identification. In recent years, it has also been widely used in the logistics industry. Encoding various information through barcodes can save a lot of manpower and time. In addition, the current barcodes are based on the principle of...

Claims

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Application Information

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IPC IPC(8): G06K19/06G06K7/06
CPCG06K7/06G06K19/06028G06K19/06046
Inventor 张晓升文丹良刘欣陈瑜邓海涛巴雁远
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA