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A low frequency radio frequency identification tag and signal sending method

A technology of radio frequency identification tags and radio frequency signals, which is applied in the field of radio frequency identification to achieve the effect of long-distance reading

Active Publication Date: 2018-02-16
INST OF ELECTRONICS & INFORMATION ENG OF UESTC IN GUANGDONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the carrier frequency band used by most low-frequency RFID tags; and passive RFID tags, they must be within the sensing range of the reader to be driven passively; they can only be read at close range

Method used

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  • A low frequency radio frequency identification tag and signal sending method
  • A low frequency radio frequency identification tag and signal sending method

Examples

Experimental program
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Embodiment Construction

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0022] Such as figure 1 As shown, a low-frequency radio frequency identification tag includes a switch 1, a power supply 2, an information storage chip 3, a first coupler 4, an infrared transmitter 5, an optical fiber 6, a modulator 7, a second coupler 9 and an antenna 10; The switch 1, the power supply 2, the information storage chip 3, the first coupler 4, the modulator 7, the second coupler 9, and the antenna 10 are sequentially connected; the infrared transmitter 5 is connected with the power supply 2, and also through the The optical fiber 6 is connected to the modulator 7 .

[0023] The infrared light emitted by the infrared emitter 5 is used as the carrier wave of the low-frequency radio frequency identifica...

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PUM

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Abstract

The present invention relates to a low-frequency radio frequency identification label and a signal transmission method, including a switch, a power supply, an information storage chip, a first coupler, an infrared transmitter, an optical fiber, a modulator, a second coupler and an antenna; the switch, the power supply, the The information storage chip, the first coupler, the modulator, the second coupler and the antenna are connected in sequence; the infrared emitter is connected with the power supply, and also connected with the modulator through the optical fiber. The invention uses the infrared light emitted by the infrared transmitter as the carrier wave of the low-frequency radio frequency identification tag to transmit the information signal; and the built-in power supply of the radio frequency identification tag provides the energy required for work, and actively senses the reader; thereby realizing long-distance reading.

Description

technical field [0001] The invention relates to the field of radio frequency identification, in particular to a low-frequency radio frequency identification tag and a signal sending method. Background technique [0002] The radio frequency identification system is an automatic identification system composed of radio frequency identification tags, readers and computer networks. Various information of people or things are stored in the radio frequency identification tag, and the reader recognizes and reads the information signal inside to drive the system to proceed to the next step. With the popularization of the Internet of Things, radio frequency identification is widely used in various occasions of people's lives, such as: ETC (non-parking electronic toll collection system), automatic parking lot entry and exit and charging, production line product tracking, etc. [0003] The radio frequency identification tag is mainly made of a coupling element and an information storag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077H01Q1/36H01Q1/22
Inventor 向勇冯彦瑜赵正爽胡琮瑾
Owner INST OF ELECTRONICS & INFORMATION ENG OF UESTC IN GUANGDONG