Metal marker tag and detection system

Abstract

The invention provides a metal marker tag and a detection system. The metal marker tag comprises a metal symbol manufactured on the surface of a metal article and recording article information, wherein an electro-magnetic induction coil is further arranged on the surface of the metal article, the metal marker tag utilizes the metal symbol to encoding a position parameter of the surface of the metal article and a metal symbol parameter and records the article information. The electro-magnetic induction coil comprises a solenoid coil and an alternating-current signal generator connected with the solenoid coil, wherein the electro-magnetic induction coil is arranged above the surface of the metal article, the alternating-current signal generator generates an alternating-current frequency signal to induce the solenoid coil to enable metal surface to sense alternating current. The metal marker tag has the advantages that the metal marker tag is large in information amount, is not easily polluted and can perform automatic recognition, a metal marker tag recording and detecting system is supplemented for an existing metal article information recording mode and can be widely applied to article information sensing in an internet of things system.

Description

technical field [0001] The invention relates to the fields of AC magnetic field measurement, electromagnetic detection technology, information recording, metal surface detection and identification, and in particular to a metal label and a detection system. Background technique [0002] The perception and collection of item information is an important part of the Internet of Things system. At present, several major item identification technologies (barcode, RFID, and magnetic stripe) have problems such as easy damage and relatively high prices. Moreover, these information recording technologies are only suitable for short-term use occasions such as item production, storage, and circulation, and cannot be used for a long time in humid, large temperature difference, polluted environments such as open air, underground, and outdoors. [0003] Existing long-term item information records, such as motor, engine nameplate, gas and liquid storage tank labels and other item information...

AI Technical Summary

Problems solved by technology

[0002] The perception and collection of item information is an important part of the Internet of Things system. At present, several major item identification technologies (barcode, RFID, and magnetic stripe) have problems such as easy damage and relatively high prices.

Moreover, these information recording technologies are only suitable for short-term use occasions such as the production, storage, and circulation of items, and cannot be used for a long time in open air, underground, and outdoor environments such as humidity, large temperature differences, and pollution.

[0003] Existing item information records that have been used for a long time, such as motor, engine nameplate, gas and liquid storage tank labels and other item information records, use words or letters to engrave on the metal surface of the item, the amount of information is small, and it cannot be automatically identified

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