Phase-change-material-based thermal bar code system and reading method thereof

A phase change material and barcode technology, which is applied in the field of barcode coding, can solve the problems that the shape characteristics cannot be read directly, and the barcode capacity is limited, etc., and achieve the effect of high anti-reverse engineering, easy to use, and low cost

Inactive Publication Date: 2016-12-21
苏明 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large volume of the fiber, the barcode capacity provided is extremely limited, and its topographical features cannot be read directly

Method used

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  • Phase-change-material-based thermal bar code system and reading method thereof
  • Phase-change-material-based thermal bar code system and reading method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0052] A thermal barcode system based on phase change materials and its reading method:

[0053] Add more than one of stearic acid (SA), 12-hydroxydodecanoic acid (12-HAD), high polyparaffin 1000 (PW1000) and high polyparaffin 3000 (PW3000) to acetaminophen evenly, A thermal barcode system for obtaining the acetaminophen, wherein the total mass of the tracer is 1-20% of the mass of the acetaminophen;

[0054] Encode the SA, 12-HAD, PW1000, and PW3000 to obtain a thermal code; the thermal code consists of four digits, representing whether SA, 12-HAD, PW1000, and PW3000 exist from left to right, and 1 represents the presence , 0 represents a vacancy, such as 1000 represents the existence of only SA, 12-HAD, PW1000 and PW3000 are vacancies; according to Pascal’s triangle rule, the four phase change materials of SA, 12-HAD, PW1000 and PW3000 can form 15 different phase change materials in total. Thermal codes: 1000, 0100, 0010, 0001, 1100, 1010, 1001, 0110, 0101, 0011, 1110, 1101...

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PUM

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Abstract

The invention discloses a thermal barcode system based on a phase change material and a reading method thereof, belonging to the technical field of barcode coding. The system includes a marking object and a tracer used for marking the object; wherein, the tracer is mainly composed of more than one phase change material, and each phase change material has a different phase change temperature. The reading method is to use a thermal barcode system with V 0 After the heating rate rises to the preset temperature, V 0 The cooling rate is lowered to room temperature, and the number and position information of the endothermic peaks and exothermic peaks of the tracer in the thermal barcode system during the heating and cooling process are read by the thermal detection device, and the type of the tracer is confirmed according to the information, and the information is compared with the The data in the database is compared to obtain the identity information of the marked object. The thermal barcode system has a wide range of applications, and the reading method is simple, accurate and fast.

Description

technical field [0001] The invention relates to a thermal barcode system based on a phase change material and a reading method thereof, belonging to the technical field of barcode coding. Background technique [0002] Stealth (invisible to the naked eye) barcodes can be used to identify criminals or terrorists, document authentication, improve the accuracy of tamper detection and target tracking, thereby providing a revolutionary change in intelligence gathering and surveillance methods to strengthen law enforcement agencies, security Administrative capacity of agencies and intelligence agencies. Many government-issued documents such as ID cards, passports, certificates, revenue stamps, driver's licenses, banknotes and valuable commercial products such as pharmaceuticals, as well as guitar strings and many other items are the target of counterfeiting. Due to the sheer number of such items, there are insufficient methods to verify their authenticity. [0003] Existing ident...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06K7/10
CPCG06K19/06G06K7/10
Inventor 苏明侯思超
Owner 苏明
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