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A self-powered active RFID tag system based on Bluetooth

An RFID tag, self-powered technology, applied in the field of active RFID tags, can solve the problems of rising use cost, long identification distance, and high working reliability

Active Publication Date: 2019-03-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The energy required for traditional active RFID tags to work is completely provided by the internal battery of the tag. It needs regular charging or battery replacement, which makes the cost of use rise sharply. However, active electronic tags can actively send signals of a certain frequency to the reader, and the recognition distance is generally Longer, higher working reliability and more suitable for the development of multi-functional RFID tags

Method used

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  • A self-powered active RFID tag system based on Bluetooth
  • A self-powered active RFID tag system based on Bluetooth
  • A self-powered active RFID tag system based on Bluetooth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] like figure 1 Shown:

[0042] A self-powered active RFID tag system based on Bluetooth, including a human body energy collection device A1, a power management circuit A2, an energy storage unit A3, a voltage stabilizing circuit A4, and a Bluetooth module A5,

[0043] The human body energy collection device A1 obtains an alternating current greater than or equal to 50V;

[0044] The power management circuit A2 receives the AC power from the human body energy collection device A1, converts the AC power into DC power, and performs step-down processing;

[0045] The energy storage unit A3 stores the DC electric energy output by the power management circuit A2;

[0046] The voltage stabilizing circuit stabilizes the DC electric energy output by the energy storage unit A3 into DC electric energy less than or equal to 12V and then outputs it to the Bluetooth module;

[0047] The bluetooth module transmits signals in the form of broadcast under the power supply state of less...

Embodiment 2

[0054] like Figure 2-Figure 6 Shown:

[0055] The human body energy collection device described in the embodiment adopts the friction power generation device or the electromagnetic power generation device formulated in this embodiment or the structure composed of its structure.

[0056] In the present invention figure 2 Among them, it is a composite structure of electromagnetic and triboelectric power generation.

[0057] In the traditional human body energy harvesting device, the conventional method is to set up a charging bracket, and then set a frictional contact structure inside the charging bracket, and in the traditional structure, because the charging bracket needs to be returned, the upper and lower brackets A helical spring is set between the plates, and for the helical spring, there is a limit to the amount of compression. At this limit, the two upper and lower bracket plates cannot form a zero gap. Therefore, in order to solve this problem, the conventional meth...

Embodiment 3

[0061] like Figure 2-Figure 6 Shown:

[0062] On the basis of the second embodiment above, for independent triboelectric power generation technology, the friction charger includes an upper electrode plate 31, a lower electrode plate 61 and a PDMS coating 5, the upper carrier plate is the upper electrode plate 31, and the lower carrier plate is the lower electrode plate 61. Electrode plate 61, when the lower surface of upper electrode plate 31 is provided with PDMS coating 5, then the upper surface of lower electrode plate 61 is not provided with PDMS coating 5; When the upper surface of lower electrode plate 61 is provided with PDMS coating 5, then The lower surface of the upper electrode plate 31 is not provided with PDMS; wherein, the upper support part is the upper electrode plate support part 33 formed by horizontally extending and integrating the periphery of the upper electrode plate 31, and the lower support part is the horizontally extending and integrating the periph...

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Abstract

The invention discloses a self-powered active RFID tag system based on Bluetooth, which comprises a human energy collecting device, a power management circuit, an energy storage unit, a voltage stabilizing circuit and a Bluetooth module. The human energy collecting device converts human energy into AC electric energy greater than 50V. The power management circuit receives the alternating current energy of the human body energy acquisition device, converts the alternating current energy into direct current energy, and then carries out voltage reduction treatment. The energy storage unit storesthe DC electric energy outputted from the power management circuit. The voltage stabilizing circuit stabilizes the DC energy outputted from the energy storage unit to the DC energy less than or equalto 12V and outputs the DC energy to the Bluetooth module. The Bluetooth module performs signal transmission in a broadcast form in a power supply state smaller than or equal to 12V as a RFID tag signal source. The invention firstly proposes that the human body energy can be applied to an active RFID tag based on Bluetooth through the energy acquisition device.

Description

technical field [0001] The invention relates to the technical field of active RFID tags, in particular to a bluetooth-based self-powered active RFID tag system. Background technique [0002] Radio frequency identification technology, referred to as RFID technology, is to realize non-contact automatic identification of target objects and obtain relevant data through the transmission and reception of radio frequency signals. [0003] Radio frequency identification technology began to rise in the 1990s. Now RFID technology has profound application potential in many fields such as industrial production, retail fresh food, logistics management, transportation, etc., and it has gradually become an enterprise to optimize the level of logistics supply chain management. It is a powerful tool to effectively reduce expenditure, carry out the company's information network, and improve the efficiency of the enterprise. With the cross-integration of various technologies, in the face of a...

Claims

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Application Information

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IPC IPC(8): G06K19/077
CPCG06K19/07722
Inventor 张晓升陈英兰刘盾鲍景富
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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