CN101937519A - Wirelessly chargeable RFID electronic tag - Google Patents
Wirelessly chargeable RFID electronic tag Download PDFInfo
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- CN101937519A CN101937519A CN2010102647183A CN201010264718A CN101937519A CN 101937519 A CN101937519 A CN 101937519A CN 2010102647183 A CN2010102647183 A CN 2010102647183A CN 201010264718 A CN201010264718 A CN 201010264718A CN 101937519 A CN101937519 A CN 101937519A
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Abstract
The invention relates to a wirelessly chargeable RFID electronic tag, comprising a signal receiving antenna, a signal processing module, an energy receiving antenna, a rectifying circuit module and an energy storage capacitor, wherein the rectifying circuit module comprises a low pass filter, a matching circuit, a rectifier diode and a direct-pass filter, wherein one end of the low pass filter is directly connected with the energy receiving antenna and the other end is connected with the matching circuit; the matching circuit is connected with the direct-pass filter via the rectifier diode, the other end of the direct-pass filter is directly connected with the energy storage capacitor, the other end of the energy storage capacitor is directly connected with the signal processing module, and the signal processing module is connected with the signal receiving antenna. The RFID electronic tag capable of being charged in a wireless mode has the following benefits that the advantages of an active RFID such as long recognition distance, large transmission data amount, low emission power and high compatibility and the like are reserved, and the problem that the service life of the existing active RFID electronic tag depends on the service life of cells is eliminated. The wirelessly chargeable RFID electronic tag has wide application prospect.
Description
Technical field
The present invention relates to the RFID technical field, relate in particular to the RFID electronic tag.
Background technology
Radio-frequency (RF) identification (RFID) technology is a kind of contactless automatic identification technology, and it can and obtain desired data by the automatic recognition objective of radiofrequency signal.The RFID electronic tag is the core of REID, is the real data carrier of radio-frequency recognition system.
The RFID electronic tag is divided into two kinds on passive RFID electronic label and active RFID electronic label.The RFID electronic tag of main flow is a passive RFID electronic label in the market.
Charged pool not on the passive RFID electronic label, the needed whole power supplys of its work all rely on the radio-frequency (RF) energy of changing the read write line transmission that receives and obtain, its concrete working method is divided into two kinds of situations: for high-frequency RF ID, based on the inductive coupling theory, passive RFID electronic label works in the near-field region of read write line emission electromagnetic field, antenna is similar to the pickup coil of transformer, and the chip of RFID electronic tag and read write line are realized the transmission of energy by the coupling between the aerial coil; And ultrahigh frequency RFID, based on the electromagnetic field couples theory, its electronic tag works in the far-field region of read write line emission electromagnetic field, and antenna can equivalence be a current element, and RFID electronic label chip and read write line are realized the transmission of energy by the electromagnetic field of alternation.Under above-mentioned two kinds of situations, the receiving antenna two ends have produced the induced electricity potential difference, and in the electronic label chip path, form weak current, if this strength of current surpasses a threshold value, just will activate the chip circuit work of passive RFID electronic label, thereby the storer in the label chip will be carried out read/write operation.But because the radio-frequency (RF) energy of read write line emission is limited, above-mentioned in addition dual mode energy conversion efficiency is not high, so the passive RFID electronic label received energy is little, thereby cause its emissive power little, cause that the passive RFID decipherment distance is short, transmitted data amount is little, need shortcomings such as the read write line emissive power is big.And because passive RFID electronic label is not used in the structure of energy storage,, can only disposablely use, reduced its reliability and compatibility so the electric energy that the passive RFID electronic label chip receives can not long term maintenance.In sum, though existing passive RFID electronic label does not need from charged pool, its decipherment distance is short, transmitted data amount is little, need the higher power of read write line emission.
The active RFID electronic label self possesses battery, and the power supply of whole device work can be provided, can be with higher emissive power feedback information, thereby less demanding to the emissive power of read write line, and effectively reading/writing distance also increases to some extent than the former.We can say that the active RFID electronic label has that decipherment distance is far away, transmitted data amount is big, required emissive power is little, reliability and compatible advantage such as good.Though the active RFID electronic label has overcome the deficiency of passive RFID electronic label,, the active RFID electronic label is because self-powered, so it is generally thicker later on to be packaged into card; The price of its active label wants expensive than passive label; The life-span of active label depends on battery simultaneously, generally about 1～2 year.Exactly because these deficiencies, the active RFID technical development relatively lags behind.
Summary of the invention
The objective of the invention is in order to overcome the deficiency that existing active RFID electronic label depends on self battery serviceable life, proposed a kind of RFID electronic tag that can wireless charging.
To achieve these goals, technical scheme of the present invention provides a kind of RFID electronic tag that can wireless charging, comprise signal receiving antenna and signal processing module, it is characterized in that, also comprise the energy receiving antenna, rectification circuit module and storage capacitor, described rectification circuit module comprises low-pass filter, match circuit, commutation diode and straight-through wave filter, one end of described low-pass filter directly is connected with the energy receiving antenna, the other end is connected with match circuit, described match circuit is connected with straight-through wave filter by commutation diode, the other end of described straight-through wave filter directly is connected with storage capacitor, the other end of described storage capacitor directly is connected with signal processing module, and signal processing module is connected with signal receiving antenna.
The beneficial effect of patent of the present invention is: RFID electronic label technology of the present invention has changed in the existing active RFID electronic label and has carried battery powered mode, rectification circuit module and storage capacitor by self have been realized also powering to signal processing module with high voltage energy preservation back to the wireless delivery of energy of RFID electronic tag, therefore it is far away to have kept the active RFID decipherment distance, transmitted data amount is big, emissive power is little, advantages such as reliability and compatibility are good, overcome simultaneously the deficiency that existing active RFID electronic label depends on self battery serviceable life again, be with a wide range of applications.
Description of drawings
Fig. 1 is a principle assumption diagram of the present invention.
Description of reference numerals: signal receiving antenna 1, signal processing module 2, rectification circuit module 3, storage capacitor 4, energy receiving antenna 5, electromagnetic wave 9, low-pass filter 31, match circuit 32, commutation diode 33 and straight-through wave filter 34.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the invention is described further.
As shown in Figure 1, a kind of RFID electronic tag that can wireless charging, comprise signal receiving antenna 1 and signal processing module 2, rectification circuit module 3, storage capacitor 4 and energy receiving antenna 5, rectification circuit module 3 comprises low-pass filter 31, match circuit 32, commutation diode 33 and straight-through wave filter 34, one end of low-pass filter 31 directly is connected with energy receiving antenna 5, the other end is connected with match circuit 32, match circuit 32 is connected with straight-through wave filter 34 by commutation diode 33, the other end of straight-through wave filter 34 directly is connected with storage capacitor 4, the other end of described storage capacitor 4 directly is connected with signal processing module 2, and signal processing module 2 is connected with signal receiving antenna 1.
Below principle of work of the present invention is elaborated.The electromagnetic wave that the present invention is used for wireless charging adopts S frequency range (2.45GHz).At first, energy receiving antenna 5 receives the radio-frequency (RF) energy of electromagnetic waves 9 and converts the energy into high-frequency current and is sent to rectification circuit module 3, the low-pass filter 31 of rectification circuit module 3 make the low Insertion Loss of the energy of working frequency points by and hinder the secondary that produces in the switching process or more higher hamonic wave be radiated free space again by energy receiving antenna 5.Then, match circuit 32 is set, connects commutation diode 33.Connect the straight-through wave filter 34 back outputs of being made up of microstrip line and big electric capacity again, its effect is only to allow direct current pass through, and stops first-harmonic and harmonic wave to pass through.Therefore fundamental frequency, secondary and higher hamonic wave are just come back reflective at low- pass filter 31 and 34 in straight-through wave filter in the rectification circuit module 3, to improve the efficient that radio-frequency (RF) energy is converted to dc energy.At last dc energy is delivered to storage capacitor 4.Storage capacitor 4 is signal processing module 2 power supplies, and signal processing module 2 utilizes and carries out contactless two-way communication between signal receiving antenna 1 and the read write line, realizes exchanges data, to reach identifying purpose.
Among the present invention, it is the medium substrate of 4.7 FR_4 that energy receiving antenna 5 can use specific inductive capacity, and thickness is 0.6mm, antenna size 40mm * 40mm.Record through experiment: centre frequency 2.45GHz, bandwidth is 600MHZ, gains to be 2.17dB.
Among the present invention, it is 3.55 RO4003C medium substrate that energy receiving antenna 5 also can adopt specific inductive capacity, and thickness is 0.5mm, antenna size 40mm * 40mm.Record through experiment: bandwidth 900MHZ, gaining is 2.471dB, and frequency deviation has taken place.
Those of ordinary skill in the art will appreciate that embodiment described here is in order to help reader understanding's principle of the present invention, should to be understood that protection scope of the present invention is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not break away from essence of the present invention according to these technology enlightenments disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.
Claims (1)
- One kind can wireless charging the RFID electronic tag, comprise signal receiving antenna and signal processing module, it is characterized in that, also comprise the energy receiving antenna, rectification circuit module and storage capacitor, described rectification circuit module comprises low-pass filter, match circuit, commutation diode and straight-through wave filter, one end of described low-pass filter directly is connected with the energy receiving antenna, the other end is connected with match circuit, described match circuit is connected with straight-through wave filter by commutation diode, the other end of described straight-through wave filter directly is connected with storage capacitor, the other end of described storage capacitor directly is connected with signal processing module, and signal processing module is connected with signal receiving antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102647183A CN101937519A (en) | 2010-08-27 | 2010-08-27 | Wirelessly chargeable RFID electronic tag |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102647183A CN101937519A (en) | 2010-08-27 | 2010-08-27 | Wirelessly chargeable RFID electronic tag |
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| CN101937519A true CN101937519A (en) | 2011-01-05 |
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| CN2010102647183A Pending CN101937519A (en) | 2010-08-27 | 2010-08-27 | Wirelessly chargeable RFID electronic tag |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094988A (en) * | 2011-11-08 | 2013-05-08 | 朱斯忠 | Wireless circulating energy storage device replacing dry battery |
| CN103427494A (en) * | 2012-05-16 | 2013-12-04 | 朱斯忠 | Wireless power supply mode of future home |
| CN103617446A (en) * | 2013-11-28 | 2014-03-05 | 江苏瑞福智能科技有限公司 | Activation-free UHF type electronic tag based on natural energy and work method thereof |
| CN104182791A (en) * | 2013-05-23 | 2014-12-03 | 英飞凌科技股份有限公司 | Chip card |
| CN104782026A (en) * | 2013-04-22 | 2015-07-15 | 松下知识产权经营株式会社 | Wireless power transfer device |
| CN105556335A (en) * | 2013-08-06 | 2016-05-04 | 瓦洛泰克公司 | Device for locating one or more mobile elements in a predetermined zone, and method implemented in such a device |
| CN106096698A (en) * | 2016-07-11 | 2016-11-09 | 常州市科晶电子有限公司 | A kind of low-power consumption light energy electronic tag |
| CN106599971A (en) * | 2016-12-12 | 2017-04-26 | 北京智芯微电子科技有限公司 | Electronic tag power rectification circuit |
| CN106787234A (en) * | 2016-12-23 | 2017-05-31 | 深圳英伦科技股份有限公司 | Wireless charging capacitance type minitype power supply and its application |
| CN107016433A (en) * | 2017-03-28 | 2017-08-04 | 西安电子科技大学 | Wearable passive RFID device based on radio frequency energy collection device |
| CN107368879A (en) * | 2017-07-05 | 2017-11-21 | 上海坤锐电子科技有限公司 | A kind of circuit of raising LED ultra-high-frequency passive tag sensitivity |
| CN107545293A (en) * | 2017-09-18 | 2018-01-05 | 北京中电华大电子设计有限责任公司 | The contactless smart card chip implementing method and structure of a kind of compatible wireless charging |
| CN108021966A (en) * | 2017-12-22 | 2018-05-11 | 电子科技大学 | Wireless energy collection type GB/T29768 national standard internet labels |
| CN109698713A (en) * | 2017-10-20 | 2019-04-30 | 南京启纬智芯微电子有限公司 | NFC interface with energy management functionality |
| CN110533141A (en) * | 2019-09-10 | 2019-12-03 | 中国信息通信研究院 | A kind of ink screen electronic tag, data writing systems and method for writing data |
| CN111095014A (en) * | 2017-09-13 | 2020-05-01 | 三星电子株式会社 | Tag and tag position determining device and method |
| CN111667036A (en) * | 2020-06-23 | 2020-09-15 | 深圳市佳维思科技有限公司 | Method for remotely wirelessly charging electronic tag in air, charging system and electronic tag |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050140495A1 (en) * | 2003-12-26 | 2005-06-30 | Semiconductor Energy Laboratory Co., Ltd. | Packing material, tag, certificate, paper money, and securities |
| CN1996352A (en) * | 2006-12-28 | 2007-07-11 | 复旦大学 | Semi-active RFID tag supporting wireless charging |
| KR20070088423A (en) * | 2007-07-27 | 2007-08-29 | 순천대학교 산학협력단 | Active rfid tag with wireless battery charger |
| JP2008071129A (en) * | 2006-09-14 | 2008-03-27 | Casio Comput Co Ltd | Radio ic tag equipment |
| CN101535102A (en) * | 2005-05-24 | 2009-09-16 | 瑞登有限责任公司 | System and method for powering a vehicle using radio frequency generators |
| CN201369094Y (en) * | 2009-01-20 | 2009-12-23 | 衡阳师范学院 | Novel batteryless remote controller |
| CN201741174U (en) * | 2010-08-27 | 2011-02-09 | 电子科技大学 | RFID electronic tag capable of being charged wirelessly |
-
2010
- 2010-08-27 CN CN2010102647183A patent/CN101937519A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050140495A1 (en) * | 2003-12-26 | 2005-06-30 | Semiconductor Energy Laboratory Co., Ltd. | Packing material, tag, certificate, paper money, and securities |
| CN101535102A (en) * | 2005-05-24 | 2009-09-16 | 瑞登有限责任公司 | System and method for powering a vehicle using radio frequency generators |
| JP2008071129A (en) * | 2006-09-14 | 2008-03-27 | Casio Comput Co Ltd | Radio ic tag equipment |
| CN1996352A (en) * | 2006-12-28 | 2007-07-11 | 复旦大学 | Semi-active RFID tag supporting wireless charging |
| KR20070088423A (en) * | 2007-07-27 | 2007-08-29 | 순천대학교 산학협력단 | Active rfid tag with wireless battery charger |
| CN201369094Y (en) * | 2009-01-20 | 2009-12-23 | 衡阳师范学院 | Novel batteryless remote controller |
| CN201741174U (en) * | 2010-08-27 | 2011-02-09 | 电子科技大学 | RFID electronic tag capable of being charged wirelessly |
Non-Patent Citations (1)
| Title |
|---|
| 邓红雷等: "一种新颖的5.8GHz微带贴片整流天线", 《华南理工大学学报(自然科学版)》 * |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094988A (en) * | 2011-11-08 | 2013-05-08 | 朱斯忠 | Wireless circulating energy storage device replacing dry battery |
| CN103094988B (en) * | 2011-11-08 | 2016-03-23 | 中惠创智无线供电技术有限公司 | The wireless circulating energy-storing device of alternative dry battery |
| CN103427494B (en) * | 2012-05-16 | 2015-12-16 | 中惠创智无线供电技术有限公司 | A kind of contactless power supply device |
| CN103427494A (en) * | 2012-05-16 | 2013-12-04 | 朱斯忠 | Wireless power supply mode of future home |
| US10367379B2 (en) | 2013-04-22 | 2019-07-30 | Panasonic Intellectual Property Management Co., Ltd. | Wireless power transmission apparatus for performing non-contact transmission by electromagnetic induction |
| US9787139B2 (en) | 2013-04-22 | 2017-10-10 | Panasonic Intellectual Property Management Co., Ltd. | Wireless power transmission apparatus for performing non-contact transmission by electromagnetic induction |
| JPWO2014174785A1 (en) * | 2013-04-22 | 2017-02-23 | パナソニックＩｐマネジメント株式会社 | Wireless power transmission device |
| CN104782026A (en) * | 2013-04-22 | 2015-07-15 | 松下知识产权经营株式会社 | Wireless power transfer device |
| CN104182791A (en) * | 2013-05-23 | 2014-12-03 | 英飞凌科技股份有限公司 | Chip card |
| CN104182791B (en) * | 2013-05-23 | 2018-05-01 | 英飞凌科技股份有限公司 | Chip card |
| CN105556335A (en) * | 2013-08-06 | 2016-05-04 | 瓦洛泰克公司 | Device for locating one or more mobile elements in a predetermined zone, and method implemented in such a device |
| CN103617446B (en) * | 2013-11-28 | 2016-09-28 | 江苏瑞福智能科技有限公司 | Based on natural energy exempting from activates UHF type electronic tag and method of work thereof |
| CN103617446A (en) * | 2013-11-28 | 2014-03-05 | 江苏瑞福智能科技有限公司 | Activation-free UHF type electronic tag based on natural energy and work method thereof |
| CN106096698A (en) * | 2016-07-11 | 2016-11-09 | 常州市科晶电子有限公司 | A kind of low-power consumption light energy electronic tag |
| CN106599971B (en) * | 2016-12-12 | 2019-06-07 | 北京智芯微电子科技有限公司 | A kind of electronic tag power rectifier circuit |
| CN106599971A (en) * | 2016-12-12 | 2017-04-26 | 北京智芯微电子科技有限公司 | Electronic tag power rectification circuit |
| CN106787234B (en) * | 2016-12-23 | 2023-09-22 | 深圳英伦科技股份有限公司 | Wireless charging capacitance type micro power supply and application thereof |
| CN106787234A (en) * | 2016-12-23 | 2017-05-31 | 深圳英伦科技股份有限公司 | Wireless charging capacitance type minitype power supply and its application |
| CN107016433A (en) * | 2017-03-28 | 2017-08-04 | 西安电子科技大学 | Wearable passive RFID device based on radio frequency energy collection device |
| CN107368879A (en) * | 2017-07-05 | 2017-11-21 | 上海坤锐电子科技有限公司 | A kind of circuit of raising LED ultra-high-frequency passive tag sensitivity |
| CN111095014A (en) * | 2017-09-13 | 2020-05-01 | 三星电子株式会社 | Tag and tag position determining device and method |
| CN111095014B (en) * | 2017-09-13 | 2023-10-31 | 三星电子株式会社 | Label and label position determining device and method |
| CN107545293A (en) * | 2017-09-18 | 2018-01-05 | 北京中电华大电子设计有限责任公司 | The contactless smart card chip implementing method and structure of a kind of compatible wireless charging |
| CN109698713A (en) * | 2017-10-20 | 2019-04-30 | 南京启纬智芯微电子有限公司 | NFC interface with energy management functionality |
| CN109698713B (en) * | 2017-10-20 | 2024-09-06 | 杭州启纬科技有限公司 | NFC interface with energy management function |
| CN108021966A (en) * | 2017-12-22 | 2018-05-11 | 电子科技大学 | Wireless energy collection type GB/T29768 national standard internet labels |
| CN110533141A (en) * | 2019-09-10 | 2019-12-03 | 中国信息通信研究院 | A kind of ink screen electronic tag, data writing systems and method for writing data |
| CN111667036A (en) * | 2020-06-23 | 2020-09-15 | 深圳市佳维思科技有限公司 | Method for remotely wirelessly charging electronic tag in air, charging system and electronic tag |
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Application publication date: 20110105 |