CN102496053A - Radio frequency identification device (RFID) with solar battery as antenna - Google Patents
Radio frequency identification device (RFID) with solar battery as antenna Download PDFInfo
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- CN102496053A CN102496053A CN2011104105812A CN201110410581A CN102496053A CN 102496053 A CN102496053 A CN 102496053A CN 2011104105812 A CN2011104105812 A CN 2011104105812A CN 201110410581 A CN201110410581 A CN 201110410581A CN 102496053 A CN102496053 A CN 102496053A
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- solar battery
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Abstract
The invention provides a radio frequency identification device (RFID) with a solar battery as an antenna, which belongs to the technical field of radio frequency identification and comprises the solar battery (1) and an RFID chip (2). The solar battery (1) can serve as an antenna for ultrahigh frequency, so that the battery can provide energy and transmit or receive electromagnetic wave. The solar battery is provided with two polar plates, and the electric characteristics present a current source with limited voltage. For ultra high frequency, the solar battery is equivalent to a metal plate with same size, so that the solar battery can serve as the antenna to transmit or receive electromagnetic wave. In the RFID adopting the solar battery for power supply, the solar battery and the antenna are combined into one to enable the structure of the RFID to be compact and small in size, cost and process complexity of the RFID are reduced, and large scale production is facilitated. The RFID is used for a location RFID, a wireless sensor network and the like, thereby being wide in application prospect.
Description
Technical field
The present invention relates to field of radio frequency identification, particularly a kind of RFID electronic tag.
Background technology
Along with the development of RFID (Radio Frequency Identification, RF identification) technology, rfid system is applied in the REID field gradually, and rfid system mainly is made up of label, reader, data transmission and disposal system three parts.Advantages such as the RFID electronic tag has persistence, big, the strong interference immunity of canned data capacity, and reading/writing distance is far away.
In radio-frequency recognition system, according to the different structure of electronic tag electric power system, the RFID electronic tag mainly is divided into active label, semi-active label and passive label.Active label and semi-active label have external battery, are that the work of label chip provides energy through external battery, make it that farther communication distance arranged and can increase more circuit function.Passive label relies on the radiofrequency signal of reader to provide energy to make its work, and passive label has the low advantage with large-scale production of cost.
The inventor finds that there is following shortcoming and defect at least in above-mentioned prior art in realizing process of the present invention:
Active label and semi-active label are because of having increased external battery, and making has increased the complexity of manufacture craft; Because battery is influential to the radiation characteristic of label antenna, thus require battery and antenna that enough big distance is arranged, thus make that the whole area of label is bigger; And when the common batteries depleted of energy, need change battery, increase the complexity in the use, and common batteries also can cause environmental pollution to a certain degree; The communication distance of passive label is limited.
Summary of the invention
In order to dwindle the whole area of label; Reduce label cost and complex manufacturing technology degree; Help large-scale production, reduce pollution, increase the communication distance of passive label and semi-active label environment; The invention provides the electronic tag of a kind of solar cell as antenna, said technical scheme is following:
Solar cell has two pole plates, and its electrology characteristic shows as the current source of a voltage-limited; Experiment shows that solar cell is equivalent to the sheet metal of an equal size for high frequency, and this just makes solar cell can be used as the antenna emission or receive electromagnetic wave signal becomes possibility.
Said electronic tag comprises: the solar cell of respective antenna structure, label chip; Said solar cell can be used as antenna concerning ultrahigh frequency, both the energy can be provided, and also can receive electromagnetic wave.The positive ends of said solar cell links to each other with the positive ends of the power supply of said label chip input; The negative polarity end of said solar cell links to each other with the negative polarity end of said label chip; Microstrip line links to each other with the rf inputs of said label chip; Ground level links to each other with the negative polarity end of said label chip.
Said label antenna is a micro-strip paster antenna.
The feeding classification of said label antenna can be feed microstrip line, slit coupling feed, the feed that is coupled closely.
The beneficial effect of technical scheme provided by the invention is:
In adopting battery powered electronic tag, solar cell and antenna are united two into one, dwindled the whole area of label, reduce the complexity of manufacture craft, reduced the manufacturing cost of label; On the other hand; Because the use of solar cell; Make active label and the semi-active label can long-term work and need not change battery; Avoided environmental pollution, improved the serviceable life of active label and semi-active label, and increased the communication distance of passive label and semi-active label because of using common batteries to cause.
Description of drawings:
Fig. 1 is a kind of label design instance of the present invention.
1: solar cell 2: microstrip line 3: slit 4: matrix 15: ground level
6: chip 7: matrix 2
Embodiment:
In order to be illustrated more clearly in inventive embodiments or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Not paying under the prerequisite of creating work property, can also obtain other design according to accompanying drawing.
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
In order to have dwindled the whole area of label, reduce the complexity of manufacture craft, reduced the manufacturing cost of label, avoided environmental pollution, and increased the communication distance of passive label and semi-active label because of using common batteries to cause.The embodiment of the invention provides the electronic tag of a kind of solar cell as antenna, sees hereinafter for details and describes:
After conventional batteries is waste and old, if the heavy metal in the battery can not get dealing carefully with and will pollute environment; But,, just can avoid the harm that in the battery production environment is caused if the energy of label chip comes from the sun power of clean environment firendly; And because solar cell has long serviceable life, under certain intensity of illumination, solar cell can be collected enough photons; Luminous energy is changed into electric energy, can be label chip power supply is provided, and under the ideal situation; As long as certain illumination is arranged, solar cell can make its eternal work continuously for the label chip power supply; And need not change battery, so the embodiment of the invention is preferably used solar cell.
Be operated in the label antenna of ultrahigh frequency (UHF) frequency range, normally dipole antenna or paster antenna, paster antenna is made up of two sheet metals and the medium that is clipped in the middle.Solar cell has two pole plates; Its electrology characteristic shows as the current source of a voltage-limited, and experiment shows that solar cell is for ultrahigh frequency; The sheet metal that is equivalent to an equal size, this just makes solar cell can be used as the antenna emission or receive electromagnetic wave signal becomes possibility.
Fig. 1 is a kind of label design instance of invention.Referring to Fig. 1, said electronic tag comprises: the solar cell of respective antenna structure, label chip; The positive ends of said solar cell links to each other with the positive ends of the power supply of said label chip input; The negative polarity end of said solar cell links to each other with the negative polarity end of said label chip; Microstrip line links to each other with the rf inputs of said label chip; Ground level links to each other with the negative polarity end of said label chip.Ground level has a rectangular aperture, makes to be carried out EM coupling between paster that solar cell replaced and the microstrip line, and promptly feeding classification is a slit coupling feed.
Wherein, Solar cell is specially the paster of micro-strip paster antenna; Make solar cell and label antenna be combined into a circuit devcie, particularly, label antenna should satisfy can receive UHF (Ultra High Frequency; Ultrahigh frequency) radio frequency electromagnetic of frequency range, for example: the frequency range of 915MHz and 2.45GHz.
Through above-mentioned circuit design, make solar cell not only can the energy was provided but also can be used as the antenna emission or receive electromagnetic wave signal for label chip, see hereinafter for details and describe:
When under active mode, promptly having under the situation of light; It is the paster of label antenna that solar cell not only is used as; And conversion of solar energy is become electric energy is that label chip provides energy, it is activated, and has solved traditional passive RFID label can't activate chip because of hypertelorism difficulty.
When being that it is that a label antenna is accepted electromagnetic wave signal that solar cell only is used as, and makes label be used as common passive label and uses under the unglazed situation under passive mode.
Further, in order to improve electricity conversion, solar cell can adopt polysilicon or amorphous silicon to make, and when specifically realizing, can also adopt other material to make, and the embodiment of the invention does not limit this.
Further, need not carry out process and remould again, can bring the commercial solar cell of having produced and directly use solar cell; Saved cost required when reprocessing; Applicable scope is enlarged, and when specifically realizing, the embodiment of the invention does not limit this.
Further, different according to size, the specification of the solar cell that uses, label antenna can adopt feed microstrip line, the feeding classification such as feed that is coupled closely, and when specifically realizing, the embodiment of the invention does not limit this.
During concrete the realization, the embodiment of the invention does not limit communication protocol, the reader of label chip.
During concrete the realization; Because active label and wireless sensor node are similar; This RFI D electronic tag can also be applied to WSN (Wireless Sensor Network; Wireless sensor network) in,, WSN still can be worked on not having under the sunlight through this RFID electronic tag when in a large amount of occasions of using of wireless sensing nodes such as environmental monitoring and military applications; Solved the problem that can't change battery to the wireless sensing node that the energy content of battery exhausts, this application prospect very extensively.Further; This RFID electronic tag can also be applied to fields such as location technology, and other fields that combine with REID, for example: can be used for humidity sensor label, positioning label; During concrete the realization, the embodiment of the invention does not limit this.
In sum; The embodiment of the invention provides the electronic tag of a kind of solar cell as antenna, utilizes the high frequency characteristics of solar cell, makes solar cell and antenna be combined into a circuit devcie; Through this RFID electronic tag; Dwindle the whole area of label, reduced the complexity of manufacture craft, reduced the manufacturing cost of label; On the other hand; Because the use of solar cell; Make active label and the semi-active label can long-term work and need not change battery; Avoided environmental pollution, improved the serviceable life of active label and semi-active label and increased the communication distance of passive label and semi-active label because of using common batteries to cause; And this RFID electronic tag has been expanded the range of application of rfid system, can apply it in the large-scale depopulated zone monitoring and maintenance to equipment, reduces the supervision of manpower, reduces human cost, increases work efficiency.It will be appreciated by those skilled in the art that accompanying drawing is the synoptic diagram of a preferential embodiment.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a solar cell is as the electronic tag of antenna, and said electronic tag comprises: the solar cell of corresponding radio-frequency antenna structure (1), label chip (2); It is characterized in that: said solar cell (1) can be used as antenna concerning ultrahigh frequency, both can also can launch or receive electromagnetic wave for chip (2) provides the energy.
2. a kind of solar cell according to claim 1 is characterized in that as the electronic tag of antenna: said label antenna is a micro-strip paster antenna.
3. a kind of solar cell according to claim 1 is characterized in that as the electronic tag of antenna: the feeding classification of said label antenna can be feed microstrip line, slit coupling feed, the feed that is coupled closely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104105812A CN102496053A (en) | 2011-12-12 | 2011-12-12 | Radio frequency identification device (RFID) with solar battery as antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104105812A CN102496053A (en) | 2011-12-12 | 2011-12-12 | Radio frequency identification device (RFID) with solar battery as antenna |
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| Publication Number | Publication Date |
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| CN102496053A true CN102496053A (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104105812A Pending CN102496053A (en) | 2011-12-12 | 2011-12-12 | Radio frequency identification device (RFID) with solar battery as antenna |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149614A1 (en) * | 2014-03-31 | 2015-10-08 | Shanghai Yaochuan Information Technology Co., Ltd. | A surgical instrument |
| US9387002B2 (en) | 2014-03-31 | 2016-07-12 | Shanghai Yaochuan Information Technology Co., Ltd. | Surgical instrument |
| CN105846048A (en) * | 2016-04-11 | 2016-08-10 | 南京邮电大学 | Solar energy cell antenna |
| CN106711576A (en) * | 2016-12-14 | 2017-05-24 | 西安电子科技大学 | Solar cell and slot antenna integration device |
| CN107394349A (en) * | 2017-06-29 | 2017-11-24 | 广东欧珀移动通信有限公司 | Housing, antenna assembly, mobile terminal and processing method of casing |
| CN109149087A (en) * | 2018-08-22 | 2019-01-04 | 广东工业大学 | A kind of low section high-gain ultra-wideband antenna |
| CN111525259A (en) * | 2020-06-02 | 2020-08-11 | 中国电子科技集团公司第十八研究所 | Solar cell antenna with series structure |
| CN111541034A (en) * | 2020-06-02 | 2020-08-14 | 中国电子科技集团公司第十八研究所 | High-gain low-profile GPS solar cell antenna excited by adopting slot mode |
| TWI779339B (en) * | 2020-08-25 | 2022-10-01 | 香港商南京矽力微電子（香港）有限公司 | Wireless electronic tag and its system |
-
2011
- 2011-12-12 CN CN2011104105812A patent/CN102496053A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149614A1 (en) * | 2014-03-31 | 2015-10-08 | Shanghai Yaochuan Information Technology Co., Ltd. | A surgical instrument |
| US9387002B2 (en) | 2014-03-31 | 2016-07-12 | Shanghai Yaochuan Information Technology Co., Ltd. | Surgical instrument |
| CN105846048A (en) * | 2016-04-11 | 2016-08-10 | 南京邮电大学 | Solar energy cell antenna |
| CN106711576A (en) * | 2016-12-14 | 2017-05-24 | 西安电子科技大学 | Solar cell and slot antenna integration device |
| CN107394349A (en) * | 2017-06-29 | 2017-11-24 | 广东欧珀移动通信有限公司 | Housing, antenna assembly, mobile terminal and processing method of casing |
| CN109149087A (en) * | 2018-08-22 | 2019-01-04 | 广东工业大学 | A kind of low section high-gain ultra-wideband antenna |
| CN111525259A (en) * | 2020-06-02 | 2020-08-11 | 中国电子科技集团公司第十八研究所 | Solar cell antenna with series structure |
| CN111541034A (en) * | 2020-06-02 | 2020-08-14 | 中国电子科技集团公司第十八研究所 | High-gain low-profile GPS solar cell antenna excited by adopting slot mode |
| CN111541034B (en) * | 2020-06-02 | 2022-02-01 | 中国电子科技集团公司第十八研究所 | High-gain low-profile GPS solar cell antenna excited by adopting slot mode |
| CN111525259B (en) * | 2020-06-02 | 2022-09-09 | 中国电子科技集团公司第十八研究所 | Solar cell antenna with series structure |
| TWI779339B (en) * | 2020-08-25 | 2022-10-01 | 香港商南京矽力微電子（香港）有限公司 | Wireless electronic tag and its system |
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Application publication date: 20120613 |