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Non-activation uhf electronic tag based on natural energy and its working method

A technology of natural energy and electronic tags, which is applied to record carriers, instruments, and computer components used by machines, can solve problems such as short effective reading and writing distance, low sensitivity, and environmental impact, so as to avoid human maintenance, improve sensitivity, The effect of avoiding environmental pollution

Active Publication Date: 2016-09-28
江苏智运科技发展有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] Common UHF electronic tags need to obtain energy from the reader's transmitted signal (radio wave) and self-activate when they are working. They have low sensitivity, short effective reading and writing distance, and are seriously affected by the environment.
Moreover, the reader needs to be powered by batteries, and waste batteries are prone to environmental problems

Method used

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  • Non-activation uhf electronic tag based on natural energy and its working method
  • Non-activation uhf electronic tag based on natural energy and its working method
  • Non-activation uhf electronic tag based on natural energy and its working method

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing.

[0026] The structure of the present invention is as figure 1 As shown, it includes UHF tuned microstrip antenna, natural energy harvesting device, AC-DC charging circuit, energy storage, secondary battery, DC-DC voltage regulator and UHF tag chip.

[0027] The antenna as described figure 2 As shown, the design goal is high-gain, 840-960Mhz full-band operation, which can adapt to multi-band or broadband frequency ranges, and is shared by natural energy harvesting devices and RFID chips. It can not only be used as the collection antenna of the natural energy collection device, but also as a signal reflection link when the UHF chip is working. Its structure is based on the rectangular microstrip patch antenna and adopts a symmetrical arc lobe pattern; the substrate material is ceramic alumina with a size of 841mm×55mm×0.6mm, and a dielectric constant of 9-10.

[0028] Ener...

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Abstract

The invention provides an activation-free UHF electronic tag based on natural energy and its working method, including a UHF tuned microstrip antenna, a natural energy collection device, an AC-DC charging circuit, an energy storage device, a secondary battery, and a DC-DC Voltage regulator and UHF tag chip, in which the natural energy harvesting device is a built-in resonant boost oscillation collector composed of an n-channel metal oxide semi-field effect transistor MOSFET, an external boost transformer and a capacitor, or a discrete Schottky diode Component-based harvesting circuits, both approaches can be used to harvest natural energy as an energy source for UHF tag activation. The invention replaces the method that the traditional electronic tag needs to obtain energy from the radio waves emitted by the reader to activate the tag when it enters the working state, effectively improves the sensitivity and effective reading and writing distance of the UHF electronic tag, and effectively reduces The impact of the external environment on the overall performance of the label is investigated.

Description

technical field [0001] The invention relates to the technical field of RFID radio frequency identification, in particular to an activation-free UHF electronic tag based on natural energy and a working method thereof. Background technique [0002] Radio Frequency Identification (RFID) technology is a new technology that has risen in the world in recent years and has been rapidly promoted and applied. The radio frequency identification device sends a microwave query signal to the object equipped with the electronic tag through the microwave antenna. After the tag receives the query signal from the reader, it will reflect the data information in the tag back to the reader according to the command requirements in the query signal. It is a brand-new method launched to automatically collect characteristic data such as attributes, states, and serial numbers of objects to realize digitization and informatization. It can be widely used in fields such as smart logistics, intelligent t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077
Inventor 夏中权李一春吴涛王效东刘川王贤根高建坡齐登厚
Owner 江苏智运科技发展有限公司
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