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Novel data label and data reading-writing system and method of data label

A data label, data reading and writing technology, applied in the field of communication, can solve the problems of unable to write and update data, and achieve the effect of good security and reliability

Inactive Publication Date: 2015-03-04
INST OF NEW ENERGY SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a novel data label and its data reading and writing system and method, that is, LID, Light Identification abbreviation, optical identification technology, to solve the problem that the existing optical identification technology (bar code, two-dimensional code) cannot be written and updated data problem

Method used

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  • Novel data label and data reading-writing system and method of data label
  • Novel data label and data reading-writing system and method of data label
  • Novel data label and data reading-writing system and method of data label

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] figure 1 A schematic structural diagram of the data label provided by the first embodiment of the present invention is shown, and the details are as follows:

[0035] The data tag described in the embodiment of the present invention includes a photodetector 101, a power management circuit 102, a photocell 103, a data memory 104, and a light emitter 105, wherein:

[0036] The output terminal of the photovoltaic cell 103 is connected to the input terminal of the power management circuit 102, and is used to receive an optical signal, and convert the optical signal into electrical energy according to the photovoltaic effect, and the photoelectric detection circuit 102 is used to detect Device 101, data memory 104, light transmitter 105 provide electrical energy;

[0037] The photodetector 101 is used to detect an optical signal, convert the optical signal into an electrical signal, and read and write the data memory according to instructions in the electrical signal;

[0...

Embodiment 2

[0052] Figure 5 A structural block diagram of the data reading and writing system provided by the second embodiment of the present invention is shown, and the details are as follows:

[0053] The data reading and writing system described in the embodiment of the present invention includes a reader-writer 2 and a data tag 1, the reader-writer 2 includes an optical signal transmitter 201, an optical signal receiver 202, and a data processor 203, and the data tag includes Photocell 103, photodetector 101, power management circuit 102, data memory 104, and light emitter 105, wherein:

[0054] The data processor 203 of the reader-writer 2 is used to convert the data instruction signal to be sent into an optical signal through the optical signal transmitter 201, so that the data tag can receive it;

[0055] The photocell 103 of the data label converts the optical signal into electrical energy, and provides electrical energy for the photodetector, data memory 104, and light transmi...

Embodiment 3

[0070] Figure 6 The implementation flow of the data reading and writing method provided by the third embodiment of the present invention is shown, and the details are as follows:

[0071] The data reading and writing method described in the embodiment of the present invention is based on the data reading and writing system described in the second embodiment, and the method includes:

[0072] In step S601, the data processor of the reader converts the data instruction signal to be sent into an optical signal through the optical signal transmitter;

[0073] In step S602, the photocell of the data label converts the light signal into electric energy, and provides electric energy for the photodetector, data memory, and light emitter through the power management circuit;

[0074] In step S603, according to the electric energy provided by the power management circuit, the photodetector of the data label detects the optical signal, converts the optical signal into an electrical sig...

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Abstract

The invention provides a novel data label and data reading-writing system and method of the data label. The data reading-writing method of the data label is namely LID (Luminous Intensity Distribution) optical recognition technology. The data label is a passive device, comprising a photoelectric detector, a power managing circuit, a photo-cell, a data storage and a light emitter; the output end of the photo-cell is connected with the input end of the power managing circuit; the photoelectric detector is used for detecting a photosignal, converting the photosignal into an electric signal after receiving the photosignal from a reader-writer, and reading and writing the data storage according to an instruction in the electric signal; the light emitter is used for converting the data read from the data storage into the photosignal. According to the novel data label and the data reading-writing system and method of the data label, the data label is read and written through the photosignal, the directionality of the photosignal propagation is not involved with radio-frequency radiation, so that the data label is able to recognize signal target, and avoid electromagnetic propagation loss or interference or monitoring, and as a result, the safety and reliability are improved, and the applicable scope is expanded.

Description

technical field [0001] The invention belongs to the field of communication, and in particular relates to a novel data label and its data reading and writing system and method. Background technique [0002] With the continuous progress of society, the continuous development of technology and the acceleration of the pace of life, people need to identify or pay easily and quickly in more aspects of life. The radio frequency tag can complete the identification distinction very well, so it can be applied to bank cards, bus cards, item labels and so on. [0003] The working principle of the radio frequency tag is as follows: an electromagnetic induction device is installed in the radio frequency tag. After the radio frequency tag enters the magnetic field, it receives the radio frequency RF signal sent by the reader, and sends out the information stored in the chip according to the energy obtained by the induced current. This kind of tag is also called passive tag or passive tag,...

Claims

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Application Information

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IPC IPC(8): G06K19/07G06K17/00
Inventor 商松泉李忠周小舟孙德文茆胜李斌刘德昂
Owner INST OF NEW ENERGY SHENZHEN
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