CN103455831A - Passive electronic tag capable of identifying physical characteristic changes - Google Patents
Passive electronic tag capable of identifying physical characteristic changes Download PDFInfo
- Publication number
- CN103455831A CN103455831A CN2013103961504A CN201310396150A CN103455831A CN 103455831 A CN103455831 A CN 103455831A CN 2013103961504 A CN2013103961504 A CN 2013103961504A CN 201310396150 A CN201310396150 A CN 201310396150A CN 103455831 A CN103455831 A CN 103455831A
- Authority
- CN
- China
- Prior art keywords
- electronic label
- voltage
- passive electronic
- chip
- passive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Semiconductor Integrated Circuits (AREA)
Abstract
The invention discloses a passive electronic tag capable of identifying physical characteristic changes. On the basis of the prior art, whether the passive electronic tag is damaged is detected through a resistor network arranged in the passive electronic tag. When the passive electronic tag is damaged, voltage of a detection point in the resistor network will change, and an electronic tag chip measures input voltage of the detection voltage input end; if voltage changes of the detection point exceed a set threshold value, the fact that the electronic tag is damaged is determined, and the electronic tag stops being used. Therefore, the situations that in a use process in the further, the passive electronic tag is completely damaged, information cannot be stored or obtained, and normal use is affected are avoided.
Description
Technical field
The invention belongs to the passive RFID technical field, more specifically say, relate to a kind of passive electronic label that can identify the physics changing features.
Background technology
Electronic tag is RFID(Radio Frequency Identification, radio frequency identification), comprise two parts:
1, electronic label antenna, for energy (passive electronic label) and communication function are provided to electronic label chip, the frequency range of its use has: ultra-high frequency antenna (800-950M), high frequency antenna (13.56M) and low-frequency antenna (125K)
2, electronic label chip, for the storage of information, and communicate by antenna and tag read-write equipment.Tag read-write equipment can read or rewrite the storage information in electronic label chip.
Electronic tag is divided into active electronic label and passive electronic.Battery is housed in active electronic label, generally has reading distance far away, weak point is the life-span of battery limited (3～10 years); Without battery, it is converted into direct current by the part microwave energy and works itselfly for after receiving the microwave signal that tag read-write equipment (readout device) sends, and generally can accomplish non-maintaining in passive electronic label.Compare active electronic label, passive electronic label is slightly restricted aspect reading distance and adaptation speed of moving body.
The basic functional principle of passive electronic label is: after passive electronic label enters the magnetic field that tag read-write equipment sends, receive the radiofrequency signal that tag read-write equipment sends, the energy that relies on induction current to obtain carries out work: 1, by electronic label antenna, send out the information be stored in electronic label chip, after tag read-write equipment reading information decoding, the information processing centre that delivers to system carries out the relevant data processing; 2 or receive the information of tag read-write equipment by electronic label antenna, rewrite the storage information in electronic label chip.
Passive electronic label is a kind of contactless automatic identification technology, and it is identified destination object and obtain related data by radiofrequency signal, and identification work is without manual intervention.Wireless version as bar code, the passive electronic label technology has the not available waterproof of bar code, antimagnetic, high temperature resistant, long service life, read that distance is large, data can encrypt, store that data capacity is larger, the storage information change waits advantage freely on label, be widely used at present every field, as the tracking of goods, identification, management, tracking and false proof and the identification etc. of article separately.
In prior art, passive electronic label causes physical features to change owing in use can being subjected to outside deterioration, extruding etc. separately, as not exclusively physical features such as fracture grade appears in passive electronic label, how identifying whether physical features change is the problem that prior art need to solve.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of passive electronic label that can identify the physics changing features is provided, to find that in time passive electronic label is damaged, stop the use of this passive electronic label, avoid damaging fully in use procedure afterwards, can't normal use be impacted access information.
For achieving the above object, the present invention can identify the passive electronic label of physics changing features, comprises electronic label antenna and electronic label chip;
The radiofrequency signal that electronic label antenna sensor label read write line sends, produce induction current and send in electronic label chip as electric energy, produces the required power supply of whole passive electronic label work; Simultaneously, receive from the storage information of tag read-write equipment and send to electronic label chip for communicating by letter between tag read-write equipment and electronic label chip, after electronic label chip is processed, store in the storer of oneself, or according to the instruction of tag read-write equipment, electronic label chip sends to tag read-write equipment by canned data by electronic label antenna, and tag read-write equipment is delivered to information processing centre and carried out the relevant data processing after being decoded;
It is characterized in that, also comprise a resistor network, be distributed in passive electronic label, whether be damaged for detection of passive electronic label;
Described electronic label chip also comprises reference voltage output terminal V_ref, detects voltage input end V_sens; Described resistor network two ends are connected respectively to reference voltage output terminal V_ref and ground end GND, select a check point in resistor network, and are connected with the detection voltage input end V_sens of electronic label chip;
Electronic label chip is measured the voltage that detects voltage input end V_sens input, when change in voltage surpasses the threshold value of setting, thinks that this passive electronic label is damaged, and stops using.
Goal of the invention of the present invention is achieved in that
Whether the present invention can identify the passive electronic label of physics changing features, on prior art, by the resistor network detection passive electronic label be distributed in passive electronic label, be damaged.When passive electronic label is damaged, in resistor network, the voltage of check point can change, and electronic label chip is measured the voltage that detects voltage input end V_sens input, and its change in voltage can surpass the threshold value of setting, think that this passive electronic label is damaged, and stops using.So just avoided in use procedure afterwards, passive electronic label damages fully, can't normal use be impacted access information.
The accompanying drawing explanation
Fig. 1 is a kind of embodiment schematic diagram of passive electronic label that the present invention can identify the physics changing features;
Fig. 2 is the theory diagram of electronic label chip shown in Fig. 1;
Fig. 3 is three kinds of embodiment circuit diagrams of resistor network shown in Fig. 1;
Fig. 4 is the workflow diagram of passive electronic label shown in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described, so that those skilled in the art understands the present invention better.Requiring particular attention is that, in the following description, when perhaps the detailed description of known function and design can desalinate main contents of the present invention, these are described in here and will be left in the basket.
Fig. 1 is a kind of embodiment schematic diagram of passive electronic label that the present invention can identify the physics changing features.
In the present embodiment, as shown in Figure 1, the passive electronic label that the present invention can identify the physics changing features comprises electronic label antenna U1, electronic label chip U2 and resistor network U3.
Electronic label antenna U1 two ends are connected with RF2 with the sky wire pin RF1 of electronic label chip U2, the radiofrequency signal of sending for the sensor label read write line produces induction current and sends into electronic label chip U2 as electric energy, produces the required power supply of whole passive electronic label work.Simultaneously, receive from the storage information of tag read-write equipment and send to electronic label chip U2 for communicating by letter between tag read-write equipment and electronic label chip, after electronic label chip U2 is processed, store in the storer of oneself, or according to the instruction of tag read-write equipment, electronic label chip U2 sends to tag read-write equipment by canned data by electronic label antenna U1, and tag read-write equipment is delivered to information processing centre and carried out the relevant data processing after being decoded.
Whether resistor network U3 is the printing conductive carbon film, is distributed in passive electronic label, for detection of passive electronic label, be damaged.The resistor network two ends are connected respectively to reference voltage output terminal V_ref and ground end GND, select a check point in resistor network, and are connected with the detection voltage input end V_sens of electronic label chip;
Electronic label chip is measured the voltage that detects voltage input end V_sens input, when change in voltage surpasses the threshold value of setting, thinks that this passive electronic label is damaged, and stops using.
One, each detailed introduction to part of passive electronic label
1, electronic label antenna
Electronic label antenna U1 is for providing energy and communication function to electronic label chip U2.Specifically can be designed according to existing technical standard: ultra-high frequency antenna (800-950M), high frequency antenna (13.56M) and low-frequency antenna (125K).
2, electronic label chip
This chip is except the function with ordinary passive electronic tag, in the present embodiment, also there is the AD translation function, can realize that the voltage measurement to detecting voltage input end V_sens input is analog-digital conversion, and will change the post-sampling data analysis, in the storer that then saving result carries to electronic label chip U2.When voltage surpasses the threshold value of setting, think that this passive electronic label is damaged, and stops using.
In the present embodiment, as shown in Figure 2, the pin of electronic label chip U2 comprises:
2.1, day wire pin RF1 and RF2;
2.2, be reference voltage output terminal V_ref, detect voltage input end V_sens and ground end GND for the pin of analog-to-digital conversion, wherein reference voltage output terminal V_ref is used for to being that resistor network U2 provides reference voltage by outside circuit-under-test, detecting voltage input end V_sens is AD sampling input port, is used for the voltage of measuring resistance network U2 check point.
In the present embodiment, as shown in Figure 2, electronic label chip U1 is comprised of mimic channel and digital circuit, and wherein RF_Module, LDO, MOD/DEM, VREF, DAC, COMP, POR, OSC module are mimic channel; Digital and EEPROM are digital circuit.
The electric function of each module is described below:
RF_Module: high-frequency circuit module, this module and external electrical label antenna U1 jointly complete external electric energy signal (being that the radiofrequency signal that the sensor label read write line sends produces induction current) and obtain, then, carry out the electric flux signal is carried out to pre-service, and send into low-dropout linear voltage-regulating circuit; Simultaneously, obtain the clock information signal in radiofrequency signal, send into the chip clock source; Be connected with the modulation /demodulation module, complete reception and the transmission of radiofrequency signal;
LDO: low-dropout linear voltage-regulating circuit, to electric signal rectification, voltage stabilizing and filtering, for the work of electronic label chip U2 provides operating voltage;
MOD/DEM: the modulation /demodulation module, for radiofrequency signal is carried out to modulation /demodulation.DEM is decoded into digital signal by the modulated radiofrequency signal (simulating signal) of tag read-write equipment transmission and is transferred to the control circuit module Digital of electronic label chip U2; MOD becomes the digital signal modulated of control circuit module Digital output radiofrequency signal (simulating signal) and exports to radio circuit to feed back to tag read-write equipment;
VREF: reference voltage generation module, this module output reference voltage V_ref is connected with reference voltage output terminal V_ref on the one hand, for outside resistor network U3 provides high-precision reference voltage, on the other hand as inner DAC(D/A converting circuit) high precision reference voltage V_ref, with the precision of guaranteeing to measure;
DAC, COMP:DAC is D/A converting circuit, and COMP is voltage comparator, and D/A converting circuit DAC and voltage comparator COMP complete the conversion (ADC) of simulating signal to digital signal jointly.Its principle of work: after the start detection voltage measurement, D/A converting circuit DAC digital input port DR[9:0] the controlled circuit module Digital of value control, connection control circuit module Digital output valve is increased to by turn high-order B ' 1111111111 ' and provides D/A converting circuit DAC as input from low level B ' 0000000000 ', D/A converting circuit DAC output voltage progressively promotes to reference voltage V_ref from 0V, and is input to the negative terminal of voltage comparator COMP; The anode of voltage comparator COMP is connected with the detection voltage input end V_sens of electronic label chip U2; When the negative terminal voltage of voltage comparator COMP is less than the positive terminal voltage of voltage comparator COMP, the output terminal Rcomp of voltage comparator COMP is high level, when the negative terminal voltage of voltage comparator COMP is greater than the positive terminal voltage of voltage comparator COMP, output terminal Rcomp upset is low level, D/A converting circuit DAC digital input port DR[9:0 exported in this upset trigger control circuit module Digital record] value, this value is the magnitude of voltage of check point in resistor network;
POR: the reset circuit module, whether the supply voltage of reset circuit module detected electrons label chip U2 reaches the voltage of whole normal operation, triggers the electronic label chip U2 operation that resets;
OSC: chip clock source, the clock source CLK of chip clock source demodulation output electronic label chip U2 work from radiofrequency signal.
Digital: the control circuit module, the core circuit module that this module is electronic label chip U2, the instruction of parsing tag read-write equipment, control each circuit module and worked in coordination with corresponding task.
EEPROM: EEPROM (Electrically Erasable Programmable Read Only Memo), this module is for storing user interactive data, and tag read-write equipment can be read and be revised its data by control circuit module Digital.
Wherein, reference voltage generation module VREF and D/A converting circuit DAC, voltage comparator COMP realize that the object of the invention is the module that passive electronic label identification physics changing features increases, for detection of the measurement of the voltage that detects voltage input end V_sens input, obtain the magnitude of voltage of check point in resistor network; The value of exporting to D/A converting circuit DAC of control circuit module Digital judgement record, in resistor network, the magnitude of voltage of check point changes whether surpass the threshold value of setting, when surpassing, think that this passive electronic label is damaged, stop using, otherwise, can normally use.
3, resistor network
Resistor network U3 can adopt the different modes such as printing conductive carbon film, adjustable resistance, discrete resistors element to form.The circuit of its typical resistances network is as A in Fig. 3, B, shown in C, wherein, figure A is the conductive carbon film P.e.c., its each terminal be linked into respectively electronic label chip U2 reference voltage output terminal V_ref, detect voltage input end V_sens, hold GND, when reference voltage output terminal V_ref to printing conductive carbon film circuit in addition during voltage, form path between reference voltage output terminal V_ref and ground end GND, generation current in path, the detection voltage input end V_sens be connected with check point end can form certain voltage.Measurement by the voltage to detecting voltage input end V_sens input judges whether passive electronic label is damaged.
Shown in figure A, printing conductive carbon resister network also can adopt the resistor network of adjustable resistance shown in figure B, by adjusting the position of check point, can obtain different magnitudes of voltage, so just can form the different potentials value of some.Certainly, also can scheme the discrete resistors element shown in C forms.
Further analyze various resistor network principle of work, can be by A, B, tri-kinds of circuit unifications of C are reduced to the circuit model shown in figure D.
Detect the magnitude of voltage of voltage input end V_sens end for calculating check point, if the resistance value of reference voltage output terminal V_ref and detection voltage input end V_sens is defined as R1, the resistance value that detects voltage input end V_sens and ground end GND is defined as R2, the voltage that reference voltage output terminal V_ref access magnitude of voltage is V1, the GND terminal voltage is V3=0V, can calculate detection voltage input end V_sens voltage V2 by Ohm law to be:
V2=(V1/(R1+R2))*R2
Voltage V2 is connected to the A/D change-over circuit of electronic label chip U2 inside by detecting voltage input end V_sens, can obtain by controlling the A/D change-over circuit value that voltage V2 is corresponding, if the conversion accuracy of the ADC of electronic label chip is 10, the reference voltage of reference voltage output terminal V_ref output is V1, so value B_V_Sens corresponding to voltage V2:
B_V_Sens=(V2/V1)*（2
10-1）
Electronic label chip U2 is worth this as a reference data storage in electronic label chip U2 internal storage after obtaining the value B_V_Sens corresponding to the voltage V2 of detection voltage input end V_sens input.In actual application demand, electronic label chip U2 control system is by the value B_V_Sens corresponding to voltage V2 of the detection voltage input end V_sens input of contrast different time, judge outside resistor network U3 circuit and whether change, whether be damaged to judge passive electronic label.
Based on above-mentioned principle, by controlling resistance allocation proportion value, can produce the electronic tag of different physical states, utilize certain manufacturing process, can produce the electronic tag of different application demand.
Two, passive electronic label workflow
When the close passive electronic label of tag read-write equipment, and while sending instruction, electronic tag is driven, passive electronic label is started working, its workflow diagram as shown in Figure 4, electronic label chip is the configuration bit of reading electronic labels chip EEPROM at first, according to configuration bit judgement passive electronic label, should enter which kind of mode of operation, and each mode of operation has certain instruction authority.In electronic label chip, the configuration bit initial value of EEPROM is test pattern.Various mode of operations are described below:
Test pattern: passive electronic label is tested and is trimmed the various digital circuits in inside and mimic channel after producing, and guarantees the parameter correctness of chip.
Initialize mode: the data to passive electronic label are carried out initialization, comprise No. ID of electronic tag, the information such as date of manufacture, record the magnitude of voltage of check point in the passive electronic label resistor network by corresponding A/D C conversion instruction, store into for data storage area.Mean after this Pattern completion that this passive electronic label production completes.
Application model: after the passive electronic label initialization, enter applied environment, if larger physical features occurs passive electronic label, do not change, in resistor network, the check point change in voltage does not exceed the threshold value of setting, passive electronic label can respond relevant instruction, such as normal operations such as the data to passive electronic label EEPROM memory block read
The destroyed pattern of label: change once larger physical features occurs passive electronic label, in resistor network, the check point change in voltage exceeds the threshold value of setting, passive electronic label enters this mode of operation, the life cycle that indicates this passive electronic label finishes, passive tag chip only responds the specific instruction of setting, such as the tag state query statement, inform that the tag read-write equipment passive electronic label is damaged, and stops using.
After passive electronic label generates out, in electronic label chip, the configuration bit initial value of EEPROM is test pattern, like this, according to the configuration bit of EEPROM, at first enter test pattern, passive electronic label is tested and trimmed, guarantee the parameter correctness of chip, then the configuration bit of EEPROM is set to the initialization complement mark and exits, and last power down completes the work of test pattern, enters subsequent processing;
At subsequent processing, configuration bit according to EEPROM, at first enter initialize mode, receive the radiofrequency signal of tag read-write equipment, system powers on and reads configuration bit, according to the judgement of EEPROM configuration bit, enters initialize mode, after passive electronic label is carried out to initialization, the configuration bit of EEPROM is set to initialization and completes and exit, and last power down completes the work of initialize mode, enters application model;
In actual use, according to the judgement of EEPROM configuration bit, enter application model, judge that whether passive electronic label is destroyed, if do not have, enter normal operation circumstances; If have, enter the destroyed pattern of label.
Although the above is described the illustrative embodiment of the present invention; so that those skilled in the art understand the present invention; but should be clear; the invention is not restricted to the scope of embodiment; to those skilled in the art; as long as various variations appended claim limit and definite the spirit and scope of the present invention in, these variations are apparent, all innovation and creation that utilize the present invention to conceive are all at the row of protection.
Claims (3)
1. the passive electronic label that can identify the physics changing features, comprise electronic label antenna and electronic label chip;
The radiofrequency signal that electronic label antenna sensor label read write line sends, produce induction current and send in electronic label chip as electric energy, produces the required power supply of whole passive electronic label work; Simultaneously, receive from the storage information of tag read-write equipment and send to electronic label chip for communicating by letter between tag read-write equipment and electronic label chip, after electronic label chip is processed, store in the storer of oneself, or according to the instruction of tag read-write equipment, electronic label chip sends to tag read-write equipment by canned data by electronic label antenna, and tag read-write equipment is delivered to information processing centre and carried out the relevant data processing after being decoded;
It is characterized in that, also comprise a resistor network, be distributed in passive electronic label, whether be damaged for detection of passive electronic label;
Described electronic label chip also comprises reference voltage output terminal, detects voltage input end; Described resistor network two ends are connected respectively to reference voltage output terminal and ground end, select a check point in resistor network, and are connected with the detection voltage input end of electronic label chip;
Electronic label chip is measured the voltage that detects the voltage input end input, when change in voltage surpasses the threshold value of setting, thinks that this passive electronic label is damaged, and stops using.
2. passive electronic label according to claim 1, is characterized in that, described electronic label chip also comprises:
The reference voltage generation module, this module output reference voltage V_ref is connected with reference voltage output terminal on the one hand, for outside resistor network U3 provides high-precision reference voltage, on the other hand as inner DAC(D/A converting circuit) high precision reference voltage, with the precision of guaranteeing to measure;
D/A converting circuit DAC, voltage comparator COMP, two circuit complete the conversion (ADC) of simulating signal to digital signal jointly:
After the start detection voltage measurement, the value of D/A converting circuit DAC digital input port is controlled by control circuit module Digital in electronic label chip, connection control circuit module Digital output valve is increased to by turn a high position and offers D/A converting circuit DAC as input from low level, D/A converting circuit DAC output voltage progressively promotes to reference voltage V_ref from 0V, and is input to the negative terminal of voltage comparator COMP; The anode of voltage comparator COMP is connected with the detection voltage input end V_sens of electronic label chip U2; When the negative terminal mouth voltage of voltage comparator COMP is less than the positive terminal voltage of voltage comparator COMP, the output terminal Rcomp of voltage comparator COMP is high level, when the negative terminal voltage of voltage comparator COMP is greater than the positive terminal voltage of voltage comparator COMP, output terminal Rcomp upset is low level, the value of D/A converting circuit DAC exported in this upset trigger control circuit module Digital record, and this value is the magnitude of voltage of check point in resistor network.
3. passive electronic label according to claim 1, is characterized in that, the workflow of described electronic label chip is:
Electronic label chip is the configuration bit of reading electronic labels chip EEPROM at first, according to configuration bit judgement passive electronic label, should enter which kind of mode of operation, and each mode of operation has certain instruction authority; In electronic label chip, the configuration bit initial value of EEPROM is test pattern, and various mode of operations are described below:
Test pattern: passive electronic label is tested and is trimmed the various digital circuits in inside and mimic channel after producing, and guarantees the parameter correctness of chip;
Initialize mode: the data to passive electronic label are carried out initialization, comprise No. ID of electronic tag, the information such as date of manufacture, record the magnitude of voltage of check point in the passive electronic label resistor network by corresponding A/D C conversion instruction, store into for data storage area.Mean after this Pattern completion that this passive electronic label production completes;
Application model: after the passive electronic label initialization, enter applied environment, if larger physical features occurs passive electronic label, do not change, in resistor network, the check point change in voltage does not exceed the threshold value of setting, passive electronic label can respond relevant instruction, such as normal operations such as the data to passive electronic label EEPROM memory block read;
The destroyed pattern of label: change once larger physical features occurs passive electronic label, in resistor network, the check point change in voltage exceeds the threshold value of setting, passive electronic label enters this mode of operation, the life cycle that indicates this passive electronic label finishes, passive tag chip only responds the specific instruction of setting, such as the tag state query statement, inform that the tag read-write equipment passive electronic label is damaged, and stops using;
After passive electronic label generates out, in electronic label chip, the configuration bit initial value of EEPROM is test pattern, like this, according to the configuration bit of EEPROM, at first enter test pattern, passive electronic label is tested and trimmed, guarantee the parameter correctness of chip, then the configuration bit of EEPROM is set to the initialization complement mark and exits, and last power down completes the work of test pattern, enters subsequent processing;
At subsequent processing, configuration bit according to EEPROM, at first enter initialize mode, receive the radiofrequency signal of tag read-write equipment, system powers on and reads configuration bit, according to the judgement of EEPROM configuration bit, enters initialize mode, after passive electronic label is carried out to initialization, the configuration bit of EEPROM is set to initialization and completes and exit, and last power down completes the work of initialize mode, enters application model;
In actual use, according to the judgement of EEPROM configuration bit, enter application model, judge that whether passive electronic label is destroyed, if do not have, enter normal operation circumstances; If have, enter the destroyed pattern of label.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396150.4A CN103455831B (en) | 2013-09-04 | 2013-09-04 | A kind of passive electronic label that can identify that physical features changes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396150.4A CN103455831B (en) | 2013-09-04 | 2013-09-04 | A kind of passive electronic label that can identify that physical features changes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103455831A true CN103455831A (en) | 2013-12-18 |
| CN103455831B CN103455831B (en) | 2016-08-17 |
Family
ID=49738172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310396150.4A Active CN103455831B (en) | 2013-09-04 | 2013-09-04 | A kind of passive electronic label that can identify that physical features changes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103455831B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104834954A (en) * | 2015-05-14 | 2015-08-12 | 成都芯昊芯科技有限公司 | Passive electronic label with dismounting detection function |
| CN105913108A (en) * | 2016-04-11 | 2016-08-31 | 江苏凯路威电子科技有限公司 | RFID chip transfer preventing method, anti-transfer RFID chip and anti-transfer RFID chip circuit |
| CN106874987A (en) * | 2017-03-22 | 2017-06-20 | 成都芯昊芯科技有限公司 | A kind of passive tag chip mode of operation collocation method |
| CN108229631A (en) * | 2016-12-22 | 2018-06-29 | Em微电子-马林有限公司 | Has the dual communication frequency RFID circuit in anti-tamper circuit |
| CN109299774A (en) * | 2018-06-01 | 2019-02-01 | 王建新 | Product false proof electronic tag and product package material including the electronic tag |
| CN111750907A (en) * | 2019-03-27 | 2020-10-09 | 北京外号信息技术有限公司 | Anti-cracking method for electronic product and corresponding electronic product |
| CN112534442A (en) * | 2018-10-04 | 2021-03-19 | 里德尔代码有限公司 | Electronic label |
| CN112990416A (en) * | 2021-04-22 | 2021-06-18 | 四川谦泰仁投资管理有限公司 | High-frequency RFID chip and label with antenna detection port |
| CN113628529A (en) * | 2021-07-01 | 2021-11-09 | 北京比特大陆科技有限公司 | Anti-dismounting device and electronic equipment |
| CN113988248A (en) * | 2021-11-09 | 2022-01-28 | 中国科学院上海高等研究院 | RFID tag chip circuit with impedance monitoring function and monitoring method thereof |
| CN114333109A (en) * | 2021-12-16 | 2022-04-12 | 摩拜(北京)信息技术有限公司 | Returning processing method and device for shared bicycles |
| CN116227513A (en) * | 2022-12-29 | 2023-06-06 | 深圳市铨顺宏科技有限公司 | Tag communication method, device, equipment and storage medium based on ultrahigh frequency |
| CN118010810A (en) * | 2024-04-08 | 2024-05-10 | 四川凯路威科技有限公司 | Device, method, equipment, medium and product for detecting integrity of concealed material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010073932A (en) * | 2008-09-19 | 2010-04-02 | Totoku Electric Co Ltd | Electronic instrument |
| CN102539933A (en) * | 2010-12-13 | 2012-07-04 | 中兴通讯股份有限公司 | Detection tool and method of radio frequency identification electronic tag |
| CN203455850U (en) * | 2013-09-04 | 2014-02-26 | 成都芯昊芯科技有限公司 | Passive RFID capable of identifying physical characteristic change |
-
2013
- 2013-09-04 CN CN201310396150.4A patent/CN103455831B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010073932A (en) * | 2008-09-19 | 2010-04-02 | Totoku Electric Co Ltd | Electronic instrument |
| CN102539933A (en) * | 2010-12-13 | 2012-07-04 | 中兴通讯股份有限公司 | Detection tool and method of radio frequency identification electronic tag |
| CN203455850U (en) * | 2013-09-04 | 2014-02-26 | 成都芯昊芯科技有限公司 | Passive RFID capable of identifying physical characteristic change |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104834954B (en) * | 2015-05-14 | 2018-05-04 | 成都芯昊芯科技有限公司 | A kind of passive electronic label with dismounting detection function |
| CN104834954A (en) * | 2015-05-14 | 2015-08-12 | 成都芯昊芯科技有限公司 | Passive electronic label with dismounting detection function |
| CN105913108A (en) * | 2016-04-11 | 2016-08-31 | 江苏凯路威电子科技有限公司 | RFID chip transfer preventing method, anti-transfer RFID chip and anti-transfer RFID chip circuit |
| CN108229631B (en) * | 2016-12-22 | 2020-10-27 | Em微电子-马林有限公司 | Dual communication frequency RFID circuit with tamper-resistant loop |
| CN108229631A (en) * | 2016-12-22 | 2018-06-29 | Em微电子-马林有限公司 | Has the dual communication frequency RFID circuit in anti-tamper circuit |
| CN106874987A (en) * | 2017-03-22 | 2017-06-20 | 成都芯昊芯科技有限公司 | A kind of passive tag chip mode of operation collocation method |
| CN106874987B (en) * | 2017-03-22 | 2019-06-14 | 成都芯昊芯科技有限公司 | A kind of passive tag chip operating mode configuration method |
| CN109299774A (en) * | 2018-06-01 | 2019-02-01 | 王建新 | Product false proof electronic tag and product package material including the electronic tag |
| KR20210041047A (en) * | 2018-10-04 | 2021-04-14 | 리들 & 코드 게엠베하 | Electronic marking |
| CN112534442A (en) * | 2018-10-04 | 2021-03-19 | 里德尔代码有限公司 | Electronic label |
| CN112534442B (en) * | 2018-10-04 | 2022-03-29 | 里德尔代码有限公司 | Electronic label |
| KR102576377B1 (en) * | 2018-10-04 | 2023-09-11 | 리들 & 코드 게엠베하 | electronic marking |
| US11809940B2 (en) | 2018-10-04 | 2023-11-07 | Riddle & Code Gmbh | Electronic marking |
| CN111750907A (en) * | 2019-03-27 | 2020-10-09 | 北京外号信息技术有限公司 | Anti-cracking method for electronic product and corresponding electronic product |
| CN112990416A (en) * | 2021-04-22 | 2021-06-18 | 四川谦泰仁投资管理有限公司 | High-frequency RFID chip and label with antenna detection port |
| CN113628529A (en) * | 2021-07-01 | 2021-11-09 | 北京比特大陆科技有限公司 | Anti-dismounting device and electronic equipment |
| CN113988248A (en) * | 2021-11-09 | 2022-01-28 | 中国科学院上海高等研究院 | RFID tag chip circuit with impedance monitoring function and monitoring method thereof |
| CN114333109A (en) * | 2021-12-16 | 2022-04-12 | 摩拜(北京)信息技术有限公司 | Returning processing method and device for shared bicycles |
| CN116227513A (en) * | 2022-12-29 | 2023-06-06 | 深圳市铨顺宏科技有限公司 | Tag communication method, device, equipment and storage medium based on ultrahigh frequency |
| CN116227513B (en) * | 2022-12-29 | 2023-10-27 | 深圳市铨顺宏科技有限公司 | Tag communication method, device, equipment and storage medium based on ultrahigh frequency |
| CN118010810A (en) * | 2024-04-08 | 2024-05-10 | 四川凯路威科技有限公司 | Device, method, equipment, medium and product for detecting integrity of concealed material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103455831B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103455831A (en) | Passive electronic tag capable of identifying physical characteristic changes | |
| US7604177B2 (en) | Contactless data carrier, interrogator, contactless data carrier system, and method of acquiring data | |
| CN203455850U (en) | Passive RFID capable of identifying physical characteristic change | |
| KR100653180B1 (en) | Rfid tag data storing apparatus with internal sensor | |
| CN108596315B (en) | RFID label chip circuit capable of preventing repeated use after tearing | |
| US20070222590A1 (en) | Passive environmental RFID transceiver | |
| CN103810521B (en) | Digital baseband processor for passive RFID (radio frequency identification) electronic tag | |
| CN104156757A (en) | Passive ultrahigh-frequency ultralow-power consumption RFID chip with built-in temperature sensor | |
| ES2620519T3 (en) | System and method for passive measurement of a physical quantity wirelessly | |
| Yu et al. | Passive and semi-passive wireless temperature and humidity sensors based on epc generation-2 uhf protocol | |
| CN104361388A (en) | Ultrahigh-frequency wireless sensing tag | |
| CN101223537A (en) | Radio frequency identification tags capable of embedding receiver signal strength indications | |
| CN203854679U (en) | Passive temperature measuring device and train axle temperature detecting device | |
| Che et al. | A semi-passive UHF RFID tag with on-chip temperature sensor | |
| US6923572B2 (en) | Data acquisition device using radio frequency identification (RFID) system | |
| CN104834954B (en) | A kind of passive electronic label with dismounting detection function | |
| CN103797497B (en) | Using radio frequency identification intelligent label from the method for external digital sensors for data and the label integrated circuit of execution methods described | |
| CN110610111B (en) | Remote passive wireless magnetic field quantity sensing system | |
| CN104864928A (en) | Fluid flow recording device and method | |
| US8013714B2 (en) | RFID sensor using pulse processing | |
| CN111325302A (en) | Passive wireless magnetic field characteristic sensing label and sensing system | |
| CN201025455Y (en) | Infrared multi-point temperature measurement instrument | |
| CN102346869A (en) | Ultrahigh-frequency sensor tag chip | |
| CN104792438A (en) | Electronic component lifetime monitoring system | |
| Cartasegna et al. | Smart RFID label for monitoring the preservation conditions of food |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |