CN202189390U - Electronic tag and radio frequency identification system applying same - Google Patents
Electronic tag and radio frequency identification system applying same Download PDFInfo
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- CN202189390U CN202189390U CN2011202612057U CN201120261205U CN202189390U CN 202189390 U CN202189390 U CN 202189390U CN 2011202612057 U CN2011202612057 U CN 2011202612057U CN 201120261205 U CN201120261205 U CN 201120261205U CN 202189390 U CN202189390 U CN 202189390U
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Abstract
The utility model relates to an electronic tag and a radio frequency identification system applying the same. The electronic tag comprises a coil, a chip and an LED (Light Emitting Diode), wherein the coil is used for receiving number one radio frequency signals sent by a reader-writer or number two radio frequency signals sent to the reader-writer; the chip is connected with the coil and used for processing the number one radio frequency signals sent by the coil and sending the number two radio frequency signals after being processed to the oil; and the LED is connected with the coil and is lighted by taking the number one radio frequency signals sent by the coil as an energy source. In the utility model, the primary identification process is completed by lighting.
Description
Technical Field
The utility model relates to a Radio Frequency Identification (RFID) technical field especially relates to an electronic tags and an applied this electronic tags's radio frequency identification system.
Background
Radio Frequency Identification (RFID) is an automatic Identification technology beginning to emerge in the 90 s of the 20 th century, and uses Radio Frequency signals to transmit information in a contactless manner by means of spatial coupling (alternating magnetic field or electromagnetic field) and to achieve Identification purposes by means of the transmitted information.
Fig. 1 is a block diagram of an RFID system provided in the prior art, which includes two parts, namely an electronic tag 101 and a reader/writer 104, wherein the electronic tag 101 includes a coil 102 and a chip 103. When the reader-writer works, the reader-writer 104 sends a first radio frequency signal with certain energy to the electronic tag 101, the first radio frequency signal is received by the coil 102 and then transmitted to the chip 103 for processing, the chip 103 works by using the energy of the first radio frequency signal, a second radio frequency signal obtained after processing is sent to the coil 102, and the coil 103 sends the second radio frequency signal to the reader-writer 103, so that the information transmission and identification are completed once.
At present, the RFID technology is widely applied to various fields of social life such as public transportation, entrance guard, security inspection and the like. In practical applications, the reader/writer is usually equipped with an audio prompting device, and after a recognition is performed, the audio prompting device emits a sound (such as a beep) to prompt the operator to end the recognition. However, under the condition of a relatively large identification amount (such as during early peak of a bus), because the identification speed of the reader-writer is limited, only the voice prompt device is used for confirming that the identification is finished, people often pass through the reader-writer along with the flow of people without swiping a card, the ticket evading and imaging can be generated in the field of the bus, and the potential safety hazard can be easily caused in the fields of entrance guard and security inspection.
Disclosure of Invention
The utility model aims to solve the technical problem that a radio frequency identification system of electronic tags and applied this electronic tags is provided, can indicate the end of an identification process with luminous mode.
The utility model provides an above-mentioned technical problem's technical scheme as follows: an electronic tag, the electronic tag carries on the wireless radio frequency communication with reader writer; the electronic tag includes: a coil for receiving the first radio frequency signal sent by the reader-writer or sending the second radio frequency signal to the reader-writer; the chip is connected with the coil, processes the first radio frequency signal sent by the coil and sends the second radio frequency signal obtained after processing to the coil; and the light emitting diode LED is connected with the coil and takes the first radio frequency signal sent by the coil as energy to emit light.
On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:
further, the chip is connected in parallel or in series with the LED.
Further, the LED lamp also comprises a capacitor connected with the LED in parallel;
the coil includes: a first coil for receiving the first radio frequency signal sent by the reader-writer or sending a second radio frequency signal to the reader-writer, and a second coil for receiving the first radio frequency signal sent by the reader-writer;
the chip is connected with the first coil; and the LED is connected with the second coil.
Further, the iron powder core is also included; and the second coil is wound on the iron powder core.
The utility model also provides a radio frequency identification system, which comprises a reader-writer and an electronic tag; wherein,
the electronic tag includes: a coil for receiving the first radio frequency signal sent by the reader-writer or sending the second radio frequency signal to the reader-writer; the chip is connected with the coil, processes the first radio frequency signal sent by the coil and sends the second radio frequency signal obtained after processing to the coil; and the light emitting diode LED is connected with the coil and takes the first radio frequency signal sent by the coil as energy to emit light.
Further, the chip is connected in parallel or in series with the LED.
Further, the coil includes: a first coil for receiving the first radio frequency signal sent by the reader-writer or sending a second radio frequency signal to the reader-writer, and a second coil for receiving the first radio frequency signal sent by the reader-writer;
the chip is connected with the first coil; and the LED is connected with the second coil.
Further, the LED lamp also comprises a capacitor connected with the LED in parallel.
Further, the iron powder core is also included; and the second coil is wound on the iron powder core.
The utility model has the advantages that: the utility model discloses in, the coil still is connected with emitting diode (LED) except connecting the chip in order to realize discerning through the mode of receiving and dispatching radio frequency signal, and this LED can rely on the radio frequency signal's that the read write line sent energy to give out light, therefore the utility model discloses when realizing discerning, can indicate the end of identification process with luminous mode, like this, the staff only need observe whether each electronic tags is luminous can confirm whether the personnel who holds this electronic tags have passed through discernment, consequently, the utility model discloses can improve the comprehensiveness and the validity of discernment greatly, prevent to take place to flee for a bill and the hidden danger in the aspect of the safety.
Drawings
FIG. 1 is a block diagram of a prior art RFID system;
fig. 2 is a structural diagram of the electronic tag and the RFID system thereof provided by the present invention;
fig. 3 is a structural diagram of a first embodiment of an electronic tag and an RFID system thereof provided by the present invention;
fig. 4 is a structural diagram of a second embodiment of the electronic tag and the RFID system thereof provided by the present invention;
fig. 5 is a structural diagram of a third embodiment of the electronic tag and the RFID system thereof provided by the present invention;
fig. 6 is a structural diagram of a fourth embodiment of the electronic tag and the RFID system thereof provided by the present invention;
fig. 7 is a structural diagram of a fifth embodiment of an electronic tag and an RFID system thereof according to the present invention.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Fig. 2 is a structural diagram of the RFID system of the electronic tag and the electronic tag thereof provided by the present invention. As shown in fig. 2, the Radio Frequency Identification (RFID) system includes an electronic tag 201 and a reader 208, which can perform wireless radio frequency communication, thereby implementing information transmission and identification. Wherein, electronic tags 201 includes: a coil 202 that receives a first radio frequency signal transmitted by the reader/writer 205 or transmits a second radio frequency signal to the reader/writer 205; the chip 203 is connected with the coil 202, processes the first radio frequency signal sent by the coil 202, and sends the processed second radio frequency signal to the coil 202; and a Light Emitting Diode (LED)204 connected to the coil 202 for emitting light by using the first RF signal as energy source.
Here, the first rf signal transmitted by the reader/writer 205 to the electronic tag 201 has a certain energy (or power), which can ensure that the reader/writer 205 can smoothly transmit information to the electronic tag 201 when the reader/writer 205 is at a certain distance from the electronic tag 201.
The coil 202 in the electronic tag 201 can be used as an antenna to receive the first radio frequency signal, and send out a second radio frequency signal obtained after the chip 203 processes the first radio frequency signal.
Since both the chip 203 and the LED204 are connected to the coil 202, both can obtain a first rf signal. The chip 203 processes the first radio frequency signal by means of its energy and sends the resulting second radio frequency signal to the coil 202. The processing technique herein is the prior art and is not described in detail herein. The LED204 emits light by the energy of the first rf signal, so that a worker outside the electronic tag 201 can confirm that the electronic tag 201 is recognized by the reader/writer 205.
Therefore, the utility model discloses in, the coil still is connected with emitting diode (LED) except connecting the chip in order to realize discerning through the mode of receiving and dispatching radio frequency signal, and this LED can rely on the radio frequency signal's that the read write line sent energy to give out light, therefore the utility model discloses when realizing discernment, can indicate the end of identification process with luminous mode, like this, whether staff only need observe each electronic tags luminous can confirm whether the personnel who holds this electronic tags have passed through discernment, consequently, the utility model discloses can improve the comprehensiveness and the validity of discernment greatly, prevent to take place the hidden danger of escaping ticket and security aspect.
Fig. 3-7 provide the structures of five embodiments of the electronic tag and the RFID system using the electronic tag according to the different connection modes of the chip 203, the LED204 and the coil.
As shown in fig. 3, the chip 203 and the LED204 in each electronic tag are connected in parallel, and both are connected to the same coil 202. This connection is suitable for the case where the radio frequency signals (including the first radio frequency signal and the second radio frequency signal) transmitted between the coil 202 and the reader/writer 205 are low frequency (125KHz to 134KHz) signals.
As shown in fig. 4, the chip 203 and the LED204 in each electronic tag are connected in series, and both are connected to the same coil 202. This connection is suitable for the case where the rf signals (including the first rf signal and the second rf signal) transmitted between the coil 202 and the reader/writer 205 are high-frequency (e.g., 13.56MHz) signals.
It can be seen that the present invention covers the whole RFID application area by using the electronic tag and the RFID system shown in fig. 3 and 4, thereby expanding the application range of the present invention.
As shown in fig. 3 and 4, there may be only one coil 202 in each electronic tag, which can be used as an antenna for the chip 203 to communicate with the reader-writer 205, and can also be used as a power source for the LED 204. While figures 5 and 6 show two coils per tag.
As shown in fig. 5 to 7, the coil in each electronic tag includes: a first coil 2021 for receiving a first radio frequency signal sent by the reader-writer 205 or sending a second radio frequency signal to the reader-writer 205, and a second coil 2022 for receiving the first radio frequency signal sent by the reader-writer 205, wherein the chip 203 in each electronic tag is connected to the first coil 2021, and the LED204 in each electronic tag is connected to the second coil 2022.
Thus, the utility model discloses can realize the information transfer function of antenna and the power function of supplying power to LED204 respectively with two coils (coil 2021 and coil 2022 No. two), thereby will the utility model provides a two functions of coil 202 independently open.
The energy (or power) of the radio frequency signal that the reader-writer 205 sent to electronic tags is limited, and under the condition that reader-writer 205 is far away (but in the maximum working distance scope) with electronic tags, the energy of the radio frequency signal that coil (including coil one and coil two) received may be not enough to satisfy information transfer and the luminous needs of LED simultaneously, therefore the utility model discloses the sensing ability of coil (especially coil two) is improved to the certain mode of accessible to under the prerequisite of guaranteeing the effective transmission of information, guarantee LED's normal luminous.
As shown in fig. 6, the electronic tag in this embodiment includes two coils, i.e., a first coil 2021 and a second coil 2022, the first coil 2021 is used as an antenna for information transmission between the chip 203 and the reader/writer 205, and the second coil 2022 is used as a power supply for receiving a first radio frequency signal transmitted by the reader/writer 205 and supplying power to the LED 204. In order to ensure that the LED204 is powered and can emit light while the reader-writer 205 communicates with the chip 203, the embodiment further includes a capacitor 601 connected in parallel with the LED204, where the capacitor 601 may be a single capacitor or a capacitor obtained by connecting a plurality of capacitors in series, in parallel, or in other manners. The capacitor 601 has an electric storage function, and can improve the power supply capability of the second coil 2022 to the LED204 and ensure the normal light emission of the LED 204.
As shown in fig. 7, the electronic tag in this embodiment also includes a first coil 2021 used as an antenna and a second coil 2022 used as a power source of the LED204, and further includes a ferrite core 701, and the second coil 2022 is wound around the ferrite core 701. The iron powder core is a popular expression of magnetic ferroferric oxide, and the second coil 2022 is wound on the iron powder core 701, so that the magnetic flux of the second coil 2022 can be greatly improved, the energy (power) of the first radio frequency signal received by the second coil 2022 is effectively improved, and the power supply of the LED204 is ensured, so that the LED can normally and reliably emit light.
The present invention does not limit the shape of the coil (including the first coil and the second coil), and the cross section thereof may be any shape such as a circle shown in fig. 3, a square shown in fig. 4, an ellipse (circle) shown in fig. 5 to 7, and the like. The utility model discloses do not restrict the positional relationship of a coil and No. two coils, the two can be as shown in fig. 5, 6, No. two coil 2022 is located the inside of a coil 2021, also can be as shown in fig. 7, the two mutual independence, in addition, a coil 2021 can also be located the inside of No. two coil 2022.
In the present invention, the coil (or a coil) can be used as an antenna, and such a coil can be an antenna manufactured by various processes such as conductor winding, etching antenna, and printed antenna. Of course, the second coil is used as a power source, and the number of turns and the area of the second coil should meet the lighting requirements of the connected LED.
In the embodiments shown in fig. 3-7, there is only one LED, and in fact, the electronic tag and the RFID system provided by the present invention may include more than two LEDs, and accordingly, the number of turns, the area, etc. of the coil (or the second coil) should satisfy the lighting requirements of all the LEDs. Of course, more coils may be provided to meet the power requirements of the LEDs.
Fig. 3-7 are only five embodiments of the electronic tag and the RFID system using the electronic tag provided by the present invention, and the structure is used to illustrate the structure of the present invention, but not to limit the technical features of the present invention, for example, by combining the embodiments shown in fig. 6 and fig. 7, a new embodiment can be produced, in which the coil two is wound on the iron powder core, and the LED is connected in parallel with the capacitor, etc.
The LED has a light emitting function, and the colors of the light emitted by the LED can be various, so that the LED with different colors can be applied to the electronic tag by utilizing the characteristic, and the light with various colors emitted by the LED can be used as the decoration of the electronic tag, thereby improving the aesthetic feeling and the decorative performance of the electronic tag.
It is worth noting that when the number of coils exceeds one (as shown in the embodiments of fig. 5-7), because the coils are independent from each other, the distance between the electronic tag and the reader/writer 205 must be within the maximum readable/writable distance range of the RFID system, i.e., within the maximum distance at which the chip 203 and the reader/writer 205 can normally communicate through the first coil 2021, the present invention can normally operate, otherwise, the second coil 2022 or other coils may receive the first rf signal of the reader/writer to make the connected LED204 emit light, and the chip 203 does not operate at this time, so the meaning of identification is lost, and the present invention is not within the scope of the present invention.
Therefore, the utility model has the advantages of it is following:
(1) the utility model discloses in, the coil still is connected with emitting diode (LED) except connecting the chip in order to realize discerning through the mode of receiving and dispatching radio frequency signal, and this LED can rely on the radio frequency signal's that the read write line sent energy to give out light, therefore the utility model discloses when realizing discerning, can indicate the end of identification process with luminous mode, like this, the staff only need observe whether each electronic tags is luminous can confirm whether the personnel who holds this electronic tags have passed through discernment, consequently, the utility model discloses can improve the comprehensiveness and the validity of discernment greatly, prevent to take place to flee for a bill and the hidden danger in the aspect of the safety.
(2) The utility model discloses can be applied to electronic tags with the LED of different colours in, make the light of its various colours that send as electronic tags's decoration to electronic tags's aesthetic feeling and decorative property have been improved.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. An electronic tag, the electronic tag carries on the wireless radio frequency communication with reader writer; characterized in that, this electronic tags includes: a coil for receiving the first radio frequency signal sent by the reader-writer or sending the second radio frequency signal to the reader-writer; the chip is connected with the coil, processes the first radio frequency signal sent by the coil and sends the second radio frequency signal obtained after processing to the coil; and the light emitting diode LED is connected with the coil and takes the first radio frequency signal sent by the coil as energy to emit light.
2. An electronic tag according to claim 1, wherein the chip is connected in parallel or in series with the LED.
3. The electronic tag according to claim 1, further comprising a capacitor connected in parallel with said LED;
the coil includes: a first coil for receiving the first radio frequency signal sent by the reader-writer or sending a second radio frequency signal to the reader-writer, and a second coil for receiving the first radio frequency signal sent by the reader-writer;
the chip is connected with the first coil; and the LED is connected with the second coil.
4. The electronic tag according to claim 3, further comprising a core of iron powder; and the second coil is wound on the iron powder core.
5. A radio frequency identification system is characterized by comprising a reader-writer and an electronic tag; wherein,
the electronic tag includes: a coil for receiving the first radio frequency signal sent by the reader-writer or sending the second radio frequency signal to the reader-writer; the chip is connected with the coil, processes the first radio frequency signal sent by the coil and sends the second radio frequency signal obtained after processing to the coil; and the light emitting diode LED is connected with the coil and takes the first radio frequency signal sent by the coil as energy to emit light.
6. The system of claim 5, wherein the chip is connected in parallel or in series with the LED.
7. The system of claim 5, wherein the coil comprises: a first coil for receiving the first radio frequency signal sent by the reader-writer or sending a second radio frequency signal to the reader-writer, and a second coil for receiving the first radio frequency signal sent by the reader-writer;
the chip is connected with the first coil; and the LED is connected with the second coil.
8. The system of claim 5, further comprising a capacitor in parallel with the LED.
9. The system of claim 7 or 8, further comprising a core of powdered iron; and the second coil is wound on the iron powder core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202612057U CN202189390U (en) | 2011-07-22 | 2011-07-22 | Electronic tag and radio frequency identification system applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202612057U CN202189390U (en) | 2011-07-22 | 2011-07-22 | Electronic tag and radio frequency identification system applying same |
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| Publication Number | Publication Date |
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| CN202189390U true CN202189390U (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202612057U Expired - Fee Related CN202189390U (en) | 2011-07-22 | 2011-07-22 | Electronic tag and radio frequency identification system applying same |
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| CN (1) | CN202189390U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545608A (en) * | 2013-11-03 | 2014-01-29 | 威海北洋电气集团股份有限公司 | RF antenna and RF antenna system for intelligent bookshelf |
| CN109637180A (en) * | 2018-12-07 | 2019-04-16 | 航天信息股份有限公司 | Public transport bus stop announcement device, system and method |
| CN110390217A (en) * | 2018-04-23 | 2019-10-29 | 欧姆龙株式会社 | Tag communication apparatus and its control method and computer readable storage medium |
-
2011
- 2011-07-22 CN CN2011202612057U patent/CN202189390U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545608A (en) * | 2013-11-03 | 2014-01-29 | 威海北洋电气集团股份有限公司 | RF antenna and RF antenna system for intelligent bookshelf |
| CN103545608B (en) * | 2013-11-03 | 2016-02-17 | 威海北洋电气集团股份有限公司 | Intelligent bookshelf radio-frequency antenna and system |
| CN110390217A (en) * | 2018-04-23 | 2019-10-29 | 欧姆龙株式会社 | Tag communication apparatus and its control method and computer readable storage medium |
| CN110390217B (en) * | 2018-04-23 | 2023-04-11 | 欧姆龙株式会社 | Tag communication apparatus, control method thereof, and computer-readable storage medium |
| CN109637180A (en) * | 2018-12-07 | 2019-04-16 | 航天信息股份有限公司 | Public transport bus stop announcement device, system and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20130722 |