CN102314584A - Micro-energy acquisition control device of novel RFID (Radio Frequency Identification) tag - Google Patents
Micro-energy acquisition control device of novel RFID (Radio Frequency Identification) tag Download PDFInfo
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- CN102314584A CN102314584A CN2010102298445A CN201010229844A CN102314584A CN 102314584 A CN102314584 A CN 102314584A CN 2010102298445 A CN2010102298445 A CN 2010102298445A CN 201010229844 A CN201010229844 A CN 201010229844A CN 102314584 A CN102314584 A CN 102314584A
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- energy conversion
- rfid tag
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Abstract
The invention discloses a micro-energy acquisition control device of a novel RFID (Radio Frequency Identification) tag, wherein an energy conversion unit is connected with a rapid access capacitor C3 for directly charging the rapid access capacitor C3; a resistor R5 and a resistor R6, connected with one end of the capacitor C3, are connected to a charging switch Q3, and the Q3 is connected with a resistor R1 and a charging switch Q1 to control the charging of a super capacitor C4; an energy conversion unit is connected with a voltage detection circuit constituted by resistors R3, R7 and R8, a diode D6 and a comparator U1 through a diode D3, and controls a switch circuit constituted by a control resistor R3, a capacitor C2 and a field-effect tube Q2 through a diode D5; and a control end of an electronic switch is connected to a retaining circuit of a capacitor C2 and a field-effect tube Q4. According to the invention, by replacing a battery in an active RFID tag with the micro-energy acquisition control device, a novel quasi passive RFID tag is generated, the novel quasi passive RFID tag is beneficial to overcoming of the defects of active and passive RFID tags and can achieve the effect of eh active RFID tag without maintenance.
Description
Technical field:
The present invention relates to a kind of novel little energy acquisition control device, be mainly used in the little energy acquisition control device of novel RFID label of the energy supply of RFID (RF identification) label.
Background technology:
At present, in the RFID field, label generally is divided into passive label and active label.Passive label need not battery, but reading/writing distance is near, high directivity, and the fabricating yard restriction is many; The active label reading/writing distance is far away, but must regularly replace battery, uses trouble, and limits more.
Summary of the invention:
The object of the invention is to overcome the defective of existing active RFID tag and passive RFID tags; Provide a kind of novel RFID label little energy acquisition control device; Substitute the battery in the active RFID; Thereby produce a kind of novel battery that both need not to change, have again that passive RFID tags is non-maintaining concurrently, an accurate passive RFID tags of advantages such as long-life and the long distance of active RFID tag, omnirange, read-write terminal miniaturization.
For reaching above-mentioned purpose, the present invention adopts following technical scheme:
The little energy acquisition control device of novel RFID label comprises that energy conversion unit connects the energy conversion control circuit and then connects active RFID tag.
Said energy conversion unit connects quick access capacitor C 3 and directly is 3 chargings of quick access capacitor C; The resistance R 5 that is connected capacitor C 3 one ends is connected to charge switch Q3 with resistance R 6, and Q3 links to each other with charge switch Q1 with resistance R 1 and controls super capacitor C4 charging; Energy conversion unit links to each other with the voltage detecting circuit that resistance R 3, R7, R8, diode D6 and comparer U1 form through diode D3, through the on-off circuit of diode D5 controlling resistance R3, capacitor C 2 and FET Q2 composition; The control end of electronic switch is connected to capacitor C 2, FET Q4 holding circuit.
Adopt technique scheme; The present invention substitutes the battery in the active RFID tag through using this device; Produced a kind of novel accurate passive RFID tags; This label has effectively overcome active and shortcoming passive RFID tags, can under the condition of Maintenance free, reach the effect of active RFID tag.
Description of drawings:
Below with accompanying drawing to the detailed description of the invention:
Fig. 1 is the concrete application form of the present invention;
Fig. 2 is a control circuit schematic diagram of the present invention.
Embodiment:
Below in conjunction with accompanying drawing and embodiment the present invention is detailed:
Like Fig. 1, embodiment of the present invention shown in Figure 2, the little energy acquisition control device of novel RFID label comprises that energy conversion unit 1 connects energy conversion control circuit 2 and then connects active RFID tag 3.
Said energy conversion unit 1 connects quick access capacitor C 3 201 and directly is 3 chargings of quick access capacitor C; The resistance R 5 202 that is connected capacitor C 3 one ends is connected to charge switch Q3 204 with resistance R 6 203, and Q3 links to each other with charge switch Q1 206 with resistance R 1 205 and controls super capacitor C4 207 chargings; Energy conversion unit 1 links to each other with the voltage detecting circuit that resistance R 2 209, R7 210, R8 211, diode D6 212 and comparer U1 213 form through diode D3 208, through the on-off circuit of diode D5 214 controlling resistance R3 215, capacitor C 2 216 and FET Q2 217 compositions; The control end of electronic switch is connected to capacitor C 2, FET Q4 218 holding circuits.
During normal mode of operation, at first to 3 chargings of quick access capacitor C, after voltage arrived the value of setting, voltage comparator U1 exported control level to the voltage that energy conversion unit provides, and opens electronic switch Q2, and device gives RFID tag-powered.RFID label return control signal, control maintained switch Q4 takes over the control to electronic switch Q2.If R5, R6 have detected excess energy, then open super capacitor charge switch Q1, Q3, give super capacitor C4 charging.
During energy shortage that super capacitor discharge mode, energy conversion device provide, if super capacitor C4 electric weight is sufficient, super capacitor C4 directly gives RFID tag-powered through diode D4.
Inspire mode of operation, when quick access electric capacity and the equal deficiency of super capacitor energy, super capacitor charge switch Q1, Q3 close, and the energy that energy conversion unit provides all is used for getting into normal mode of operation fast to 3 chargings of quick access capacitor C.
The present invention substitutes the battery in the active RFID tag through using this device; Produced a kind of novel accurate passive RFID tags; This label has effectively overcome active and shortcoming passive RFID tags, can under the condition of Maintenance free, reach the effect of active RFID tag.
Claims (2)
1. the little energy acquisition control device of novel RFID label is characterized in that: comprise that energy conversion unit connects the energy conversion control circuit and then connects active RFID tag.
2. the little energy acquisition control device of novel RFID label as claimed in claim 1 is characterized in that: said energy conversion unit connects quick access capacitor C 3 and directly is 3 chargings of quick access capacitor C; The resistance R 5 that is connected capacitor C 3 one ends is connected to charge switch Q3 with resistance R 6, and Q3 links to each other with charge switch Q1 with resistance R 1 and controls super capacitor C4 charging; Energy conversion unit links to each other with the voltage detecting circuit that resistance R 3, R7, R8, diode D6 and comparer U1 form through diode D3, through the on-off circuit of diode D5 controlling resistance R3, capacitor C 2 and FET Q2 composition; The control end of electronic switch is connected to capacitor C 2, FET Q4 holding circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010229844.5A CN102314584B (en) | 2010-07-07 | 2010-07-07 | Micro-energy acquisition control device of novel RFID (Radio Frequency Identification) tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010229844.5A CN102314584B (en) | 2010-07-07 | 2010-07-07 | Micro-energy acquisition control device of novel RFID (Radio Frequency Identification) tag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102314584A true CN102314584A (en) | 2012-01-11 |
| CN102314584B CN102314584B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010229844.5A Active CN102314584B (en) | 2010-07-07 | 2010-07-07 | Micro-energy acquisition control device of novel RFID (Radio Frequency Identification) tag |
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| CN (1) | CN102314584B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517083A (en) * | 2014-12-12 | 2015-04-15 | 广西瀚特信息产业股份有限公司 | Electronic tag and method for controlling same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996352A (en) * | 2006-12-28 | 2007-07-11 | 复旦大学 | Semi-active RFID tag supporting wireless charging |
| CN201788514U (en) * | 2010-07-07 | 2011-04-06 | 厦门硅田系统工程有限公司 | Novel RFID (radio frequency identification) tag micro-energy collection control device |
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2010
- 2010-07-07 CN CN201010229844.5A patent/CN102314584B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996352A (en) * | 2006-12-28 | 2007-07-11 | 复旦大学 | Semi-active RFID tag supporting wireless charging |
| CN201788514U (en) * | 2010-07-07 | 2011-04-06 | 厦门硅田系统工程有限公司 | Novel RFID (radio frequency identification) tag micro-energy collection control device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517083A (en) * | 2014-12-12 | 2015-04-15 | 广西瀚特信息产业股份有限公司 | Electronic tag and method for controlling same |
| CN104517083B (en) * | 2014-12-12 | 2017-10-17 | 广西瀚特信息产业股份有限公司 | A kind of electronic tag and its control method |
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| Publication number | Publication date |
|---|---|
| CN102314584B (en) | 2014-05-07 |
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