CN104978598A - Active radio-frequency identification tag with anti-transfer function - Google Patents
Active radio-frequency identification tag with anti-transfer function Download PDFInfo
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- CN104978598A CN104978598A CN201510381316.4A CN201510381316A CN104978598A CN 104978598 A CN104978598 A CN 104978598A CN 201510381316 A CN201510381316 A CN 201510381316A CN 104978598 A CN104978598 A CN 104978598A
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- frequency identification
- identification tag
- active radio
- transfer function
- rfid tag
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Abstract
An active radio-frequency identification tag with an anti-transfer function is disclosed. The active radio-frequency identification tag comprises an antenna, an off-chip matching network, a rectifier module, a power supply generating module, a receiving and sending module and a digital baseband control module; the active radio-frequency identification tag further comprises a battery, a static random access memory and an anti-transfer seal; the static random access memory is connected with the battery through the anti-transfer seal; and the digital baseband control module is connected with the static random access memory and is capable of acquiring stored internal data. The active radio-frequency identification tag can be effectively prevented from being torn off and reinstalled on non-authorized articles after installation.
Description
Technical field
The invention belongs to integrated circuit (IC) design field, be specifically related to a kind of active RFID tag with anti-transfer function.
Background technology
Along with the develop rapidly of microelectric technique, CMOS technology can manufacture the chip being applied to microwave region, and radio circuit can be integrated on the chip of large scale digital circuit.More broad application will be opened with the low-cost wireless system of CMOS technology manufacture.RFID tag is exactly an extraordinary application of prospect.
When within 1973, bar code is pushed out, its inventor once foretold: after 25 years, carried out alternative bar code by there being a kind of new technology.Now, RFID tag has been gone in face of people.It is not only the simple substitute of bar code, more can the up-to-date information technology such as comprehensive wireless communication, microelectronics, internet, carrying out carrying out whole process supervision management from producing, selling and uying even recycling to all national products, greatly improving the running efficiency of entire society.
The working frequency range of RFID tag comprises, and 1: low frequency tags frequency of operation is at 30kHz-300kHz, and typical frequency of operation has: 125kHz, 133kHz.2: high-frequency label frequency of operation is at 3MHz-30MHz, and typical frequency of operation is 13.56MHz.3: ultrahigh-frequency tag frequency of operation is greater than 400MHz, typical operating frequency is 915MHz, 2.45GHz, 5.8GHz.
RFID tag is divided into passive and active RFID tag according to chip power supply mode.A complete radio-frequency recognition system generally includes reader 1, radio-frequency (RF) tag 3 and communications protocol 2, as shown in Figure 1.Fig. 2 is that a traditional active RFID tag comprises: the outer matching network 5 of antenna 4, sheet, rectification module 6, power supply generation module 7, receive and sending module 8 and digital baseband control module 9.Active RFID tag is widely used in item tracking, the fields such as vehicle monitoring, but after active RFID tag is installed in article surface, how to prevent it to be disassembled and to shift being installed on other unauthorized article is the difficult problem facing needed for existing system and solve.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, propose a kind of active RFID tag with anti-transfer function, can judge whether label transfer occurred.
Technical solution of the present invention is as follows:
A kind of active RFID tag with anti-transfer function, comprise antenna, the outer matching network of sheet, rectification module, power supply generation module, reception and sending module and digital baseband control module, it is characterized in that, also comprise battery, static RAM and anti-transfer seal;
Described static RAM is connected with battery by anti-transfer seal, and described digital baseband control module is connected with static RAM, and can obtain its internal data stored.
Described static RAM) feature be when there being power supply supply, interior data keeps always, when non-transformer supply, interior data disappearance.
Each be arranged on article for the first time time, initial setting up can be carried out to the static RAM in label chip, data in static RAM are sent to reader by the digital baseband block in label chip at every turn, and whether changed by these data judges whether active RFID tag transfer occurred.
When taking off from pasted article, anti-transfer seal can be damaged, and then tag battery (or the outer storage capacitor of sheet) cannot provide power supply for static RAM.
Compared with prior art, the invention has the beneficial effects as follows: torn off and be installed in again on unauthorized article after effectively preventing from installing.
Accompanying drawing explanation
Fig. 1 is a complete radio-frequency recognition system
Fig. 2 is active RFID tag in prior art
Fig. 3 is the structural drawing that the present invention has the active RFID tag of anti-transfer function
Fig. 4 is the process flow diagram that the present invention has the active RFID tag of anti-transfer function
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Refer to Fig. 3, Fig. 3 is the structural drawing that the present invention has the active RFID tag of anti-transfer function, as shown in the figure, existing active RFID tag basis increases static RAM 11 in radio frequency tag chip inside, the supply of its power supply is provided by anti-transfer seal 12 by tag battery (or the outer storage capacitor of sheet) 10, such as anti-transfer seal 12 can be two wires connecting chip internal static RAM 11 and tag battery (or the outer storage capacitor of sheet) 10, if radio-frequency (RF) tag is peeled off from article, anti-transfer seal can be destroyed, due to non-transformer supply, the data stored in static RAM 11 will disappear.With the active RFID tag of anti-transfer function when installing for the first time, lead to and particular data is arranged to static RAM 11, and in whole label use procedure, because static RAM 11 provides energy by tag battery (or the outer storage capacitor of sheet) 10, its data remain constant, the data message stored in static RAM 11 can be returned reader 1 at each operation by digital baseband block 9, and then reader can judge whether label transfer occurred.
Fig. 4 is the process flow diagram that the present invention has the active RFID tag of anti-transfer function, and as shown in the figure, specific operation process of the present invention is as follows:
1: the present invention is arranged on article for the first time
2: static RAM 11 writes data 1010
3: if the active RFID tag that anti-transfer function in use occurs is peeled off from article, anti-transfer seal 12 breaks, and due to energy resource supply, static RAM 11 writes data and disappeared
4: static RAM 11 internal data can be returned reader 1 by active RFID tag each operating die digital baseband control module 9 of anti-transfer function, reader judges whether these data are 1010, if it is there is not transfer in this active RFID tag, if not then judging that transfer occurred this active RFID tag.
By above embodiment, the anti-transfer function of active RFID tag can be realized
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to the technical scheme of invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (1)
1. one kind has the active RFID tag of anti-transfer function, comprise antenna (4), the outer matching network (5) of sheet, rectification module (6), power supply generation module (7), reception and sending module (8) and digital baseband control module (9), it is characterized in that, also comprise battery (10), static RAM (11) and anti-transfer seal (12);
Described static RAM (11) is connected with battery (10) by anti-transfer seal (12), described digital baseband control module (9) is connected with static RAM (11), and can obtain its internal data stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381316.4A CN104978598A (en) | 2015-07-02 | 2015-07-02 | Active radio-frequency identification tag with anti-transfer function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381316.4A CN104978598A (en) | 2015-07-02 | 2015-07-02 | Active radio-frequency identification tag with anti-transfer function |
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| Publication Number | Publication Date |
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| CN104978598A true CN104978598A (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510381316.4A Pending CN104978598A (en) | 2015-07-02 | 2015-07-02 | Active radio-frequency identification tag with anti-transfer function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113298215A (en) * | 2021-05-19 | 2021-08-24 | 华大恒芯科技有限公司 | RFID label anti-transfer method using random capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201078774Y (en) * | 2007-02-09 | 2008-06-25 | 颜全生 | Read-write device of intelligence electronic credentials |
| CN103761561A (en) * | 2013-12-23 | 2014-04-30 | 电子科技大学 | Ultrahigh frequency Internet of Things chip compatible with ISO18000-6C standards |
| CN104079410A (en) * | 2014-06-25 | 2014-10-01 | 苏州锟恩电子科技有限公司 | Anti-demounting dynamic token |
| CN105260627A (en) * | 2015-09-18 | 2016-01-20 | 许继集团有限公司 | Anti-copy method for embedded device program |
-
2015
- 2015-07-02 CN CN201510381316.4A patent/CN104978598A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201078774Y (en) * | 2007-02-09 | 2008-06-25 | 颜全生 | Read-write device of intelligence electronic credentials |
| CN103761561A (en) * | 2013-12-23 | 2014-04-30 | 电子科技大学 | Ultrahigh frequency Internet of Things chip compatible with ISO18000-6C standards |
| CN104079410A (en) * | 2014-06-25 | 2014-10-01 | 苏州锟恩电子科技有限公司 | Anti-demounting dynamic token |
| CN105260627A (en) * | 2015-09-18 | 2016-01-20 | 许继集团有限公司 | Anti-copy method for embedded device program |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113298215A (en) * | 2021-05-19 | 2021-08-24 | 华大恒芯科技有限公司 | RFID label anti-transfer method using random capacitor |
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Application publication date: 20151014 |