CN112070196A - Passive RFID chip with external battery and tag - Google Patents
Passive RFID chip with external battery and tag Download PDFInfo
- Publication number
- CN112070196A CN112070196A CN201910602294.8A CN201910602294A CN112070196A CN 112070196 A CN112070196 A CN 112070196A CN 201910602294 A CN201910602294 A CN 201910602294A CN 112070196 A CN112070196 A CN 112070196A
- Authority
- CN
- China
- Prior art keywords
- commodity
- unit
- passive rfid
- external battery
- rfid chip
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07745—Mounting details of integrated circuit chips
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Abstract
The invention discloses a passive RFID chip and a tag with an external battery, which mainly comprise a passive RFID chip; the passive RFID tag is attached to a commodity; the passive RFID chip integrates a clock control module, a sensor induction unit and a power supply unit. The invention utilizes the power supply unit to supply power to the RFID, so that the clock module is always in a working state, thereby completing the periodic inspection of the vaccine temperature.
Description
Technical Field
The invention relates to the field of integrated circuit frame design and environmental parameter monitoring, in particular to a passive RFID chip and a tag with an external battery.
Background
With the development of mobile communication technology, particularly, mobile internet and internet of things are permeating into the living field of people, various requirements of authentication services based on internet appear, such as commodity authenticity authentication, meanwhile, some commodities have special requirements on environmental conditions, such as temperature, humidity and the like, and need to be kept in a constant range, otherwise, the commodities are deteriorated or invalid, multiple vaccine cases appearing in recent years are typical cases, and an effective vaccine anti-counterfeiting and environmental parameter monitoring system is urgently needed.
The trend of technical development is to realize the anti-counterfeiting verification of commodities by adopting the RFID label and automatically record and monitor the change of environmental conditions, the monitoring and recording of environmental parameters can be realized only under the active condition, and part of commodities such as vaccines need a longer storage life, however, the increase of power sources on the RFID label brings the difficult problems of area/volume increase, cost increase, failure to achieve effective power supply in the storage life and the like, which are not beneficial to application.
Disclosure of Invention
The present invention is directed to solving the problems of the prior art.
The technical scheme adopted for achieving the purpose of the invention is that the passive RFID chip with the external battery is characterized in that: the radio frequency interface circuit comprises a radio frequency interface circuit unit in a passive working state and a calculation control unit. And the clock control unit and the environmental parameter monitoring unit are powered by external batteries. And a storage unit.
And when the external battery is communicated with the RFID chip, the clock control module is continuously supplied with power.
The clock control module generates a driving signal every time step so as to drive an external battery to supply power for the sensor sensing unit. And when the sensor sensing unit is electrified, monitoring an environmental sampling value x of the commodity.
The invention claims a passive RFID tag with an external battery, which is formed by packaging the RFID chip, an external power supply battery and an RFID antenna.
When the RFID label is read by an external reader-writer, the radio frequency interface circuit unit, the calculation control unit and the storage unit receive power supplied by the external reader-writer and carry out reading, writing or functional operation according to the requirement.
Further, the memory cell records the sample value x.
Furthermore, the sampling value x of the sensing unit of the environmental parameter sensor is the sampling value of the temperature, the humidity and the air pressure of the environment where the commodity is located.
Further, when the sampling value x exceeds a preset threshold value, the storage unit records the sampling value x.
Further, the radio frequency interface circuit unit receives a radio frequency signal sent by the RFID reader.
The calculation control unit calculates the temperature value T of the environment where the commodity is located as Kx + B based on the sampling value x of the environment where the commodity is located, and K and B are linear parameters.
The storage unit stores the ambient temperature value T of the commodity and commodity information.
Further, the radio frequency signal instruction comprises a special power supply starting instruction, a temperature detection instruction and a temperature reading instruction.
And if the radio frequency interface circuit unit receives a special power supply starting instruction, communicating the active working part in the RFID chip with an external power supply battery.
And if the radio frequency interface circuit unit receives the special temperature detection instruction, the radio frequency interface circuit unit generates induction current and supplies power to the sensor induction unit. The sensor sensing unit detects the sampling value x of the environment where the commodity is located in real time and transmits the sampling value x to the calculation control unit.
And if the radio frequency interface circuit unit receives a special temperature reading instruction, the RFID chip sends all data in the storage unit to the RFID reader-writer.
Furthermore, the RFID chip can set the highest threshold value T of the environmental parameter allowed by the commodity through a special instruction by an external reader-writer according to the storage and transportation requirements of the corresponding commoditymaxAnd a minimum threshold T for allowable environmental parameters of the goodsminAnd time steps TINTN and TINTX of environmental parameter monitoring.
And when the time step TINTN or TINTX count of the clock control unit is full, starting an environment parameter monitoring unit to detect and calculate to obtain an environment parameter value T which is Kx + B, wherein K and B are linear parameters.
The environment parameter monitoring unit judges an environment parameter value Tmin<T<TmaxAnd if not, storing the environmental parameter value T to a storage unit in real time, setting the time step of the clock control unit as TINTX, and entering the next time step counting period. And if so, setting the time step of the clock control unit to TINTN, and simultaneously entering the next time step counting period.
Further, the time step TINTN of the clock control unit is an environmental parameter monitoring time interval when the commodity is in a normal environmental parameter range. TINTX is the environmental parameter monitoring time interval when the commodity is in the range exceeding the environmental parameter. TINTN and TINTX may be different or the same.
Further, if the temperature value T is not stored in the storage unit of the current passive RFID chip, the condition that the commodity does not exceed the environmental parameter is judged to be out of service.
Further, the commodity is vaccine, biopharmaceutical, blood preparation, and all cold chain logistics commodities.
Further, the external power supply unit is a paper battery.
Further, the passive working state part also comprises an input interface circuit unit.
Furthermore, the outer surface of the electronic tag is provided with a specific combination surface consisting of a conductive geometric figure. The specific combination surface is distributed with a plurality of conductive contacts which are respectively connected with the contacts of the input interface unit. The electronic tag changes the on-off condition of the conductive circuit of the electronic tag through random attachment of another component on a specific joint surface of the electronic tag, so that random state codes are generated.
Further, an RFID tag with random status bits is employed. When the RFID reader reads the RFID chip, the RFID reader can read the state information generated by the interactive switch interface circuit unit through the calculation control unit according to the requirement.
After the initial state bit information is formed, if the application system reads that the state bit information of the electronic tag is not the initial state bit information, the application system determines that the external component and the specific joint surface are separated once.
As described in the background section, how to reduce the energy consumption of RFID tag applications becomes critical in order to achieve low-cost and long-term effective monitoring and automatic recording of environmental parameter changes. In order to reduce the cost of the RFID capable of monitoring and recording the environmental parameters to the degree of industrial and commercial practical values, the RFID tag is different from the traditional active RFID and semi-active RFID, a novel passive RFID mode with an external power supply is adopted, all external power supplies only supply power to a clock and an environmental parameter monitoring and recording part, and the traditional RFID working part adopts a passive working mode so as to reduce the energy consumption of the tag to the maximum extent. The essence of the invention is to provide a more accurate energy management and control technical scheme for the design of the RFID chip for monitoring the environmental parameters.
Drawings
FIG. 1 is a schematic diagram of a passive RFID chip with an external battery.
Fig. 2 is a schematic diagram of a working flow of a passive RFID tag with an external battery.
FIG. 3 is a flow chart of the internal logic of a passive RFID chip with an external battery.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
a passive RFID chip with an external battery comprises a radio frequency interface circuit unit in a passive working state and a calculation control unit. And the clock control unit and the environmental parameter monitoring unit are powered by external batteries. And a storage unit.
And when the external battery is communicated with the RFID chip, the clock control module is continuously supplied with power. The memory cell is powered by an external power supply only during a read operation.
The clock control module generates a driving signal every time step so as to drive an external battery to supply power for the sensor sensing unit. And when the sensor sensing unit is electrified, monitoring an environmental sampling value x of the commodity. The power supply unit is used for continuously supplying power for the clock control module. The electric quantity required by the clock control module is extremely low, and the consumption of the power supply unit is small. The clock control module generates a driving signal to the power supply unit every other step, so that the driving power supply unit supplies power to the sensor sensing unit. The sensor sensing unit works intermittently, the energy consumption is low, and the effective working time is long.
The passive RFID tag with the external battery based on the chip is formed by packaging the chip, an external power supply battery and an RFID antenna. When the RFID label is read by an external reader-writer, the radio frequency interface circuit unit, the calculation control unit and the storage unit receive power supplied by the external reader-writer and store the power as required. It is worth noting that storage can be in two ways. One is that the memory cell stores the entire sequence of sample values. The second is the selective storage of the storage unit storage. For example, when the sample value x is a sample value of temperature, humidity, or air pressure of an environment in which the commodity is located, only sample values exceeding or falling below a preset threshold value are stored. At this time, if the reader/writer does not read the stored sample value, it indicates that the environment of the tag is within the threshold. The mode can further save power and is suitable for commodities which are stored and transported for a long time.
Example 2:
in this embodiment, the main technical solution is the same as that in embodiment 1, and further the calculation control unit calculates an ambient temperature value T of the commodity, which is Kx + B, based on the sampling value x of the environment where the commodity is located, where K and B are linear parameters.
The storage unit stores the ambient temperature value T of the commodity and the commodity information. The commodity information mainly comprises commodity types, product batch numbers, production dates and/or quality guarantee periods.
Preferably, the calculation control unit stores a maximum temperature threshold T of an environment where the commodity is locatedmaxAnd the lowest temperature threshold T of the environment where the commodity is locatedmin。
The calculation control unit calculates and obtains a temperature value T which is Kx + B, and K and B are linear parameters.
The calculation control unit judges the temperature value Tmin<T<TmaxAnd if not, storing the temperature value T into a storage unit, and modifying the step length of the clock module from TINTN to TINTX. If yes, further judging whether the step length of the clock module is TINTN, if not, resetting the step length of the clock module to TINTN.
Preferably, the calculation control unit stores a normal temperature sequence set a of an environment in which the commodity is located.
And after the calculation control unit calculates the temperature value T, the temperature value T is matched with the environment temperature sequence set A where the commodity is located, if the temperature value T is not matched with the environment temperature sequence set A, the temperature value T is stored in the storage unit, and the step length of the clock module is changed from TINTN to TINTX. If the clock module step length is matched with the TINTN, whether the clock module step length is TINTN or not is further judged, and if not, the clock module step length is reset to TINTN.
And if the temperature value T is not stored in the storage unit of the current passive RFID chip, judging that the commodity is not invalid.
The circuit structure of the power supply unit can be as shown in fig. 3, where RF denotes radio frequency, RFVDD denotes voltage, SW denotes a switch, EEMUX denotes a multiplexer switch, OSC denotes timing, and POR denotes power-on reset. When VCC is powered on, in general, EN1, EN2, EN3 are low, SW1, SW2, SW3 are all in off state, and only the OSC, POR, SenseDig modules of the chip are working. When the timing condition of the SenseDig module is reached, the EN3 is high, the SW3 is opened, the SenseDig module detects the current temperature, the detection completion temperature is in the preset range, the EN3 is closed, and the next counting period is continued to be started. If the temperature exceeds the preset range, EN3 is closed, EN1 is opened, EEMUX, EE is powered on, and corresponding information is sent to EE. The write is complete, EN1 is turned off, and the next timing cycle continues. And the OSC, POR and SenseDig working currents are less than 300 nA.
The sensor sensing unit monitors the sampling value x of the environment temperature where the commodity is located.
The passive RFID tag is attached to a commodity.
Further, the commercial product is a vaccine.
Because the vaccine must be preserved according to the conditions specified in the specification, the quality of the vaccine cannot be obviously reduced, generally speaking, the inactivated vaccine is preserved in a dark place at the temperature of 2-8 ℃ and should not be preserved in a freezing way. The live vaccine should be preserved in the dark under the condition of-15 ℃, and the freeze-dried live attenuated vaccine generally requires low-temperature freezing preservation except individual different requirements, the preservation temperature is stable, and particularly repeated freeze thawing can not be carried out. Therefore, whether the vaccine is fake or not can be accurately judged by recording the temperature of the vaccine bottle.
Further, referring to fig. 1, the passive RFID chip mainly includes a radio frequency interface circuit unit, an input interface circuit unit, a calculation control unit, and a storage unit.
And the radio frequency interface circuit unit receives radio frequency signals sent by the RFID reader-writer.
Further, the RFID reader is a terminal with an RFID scanning and reading function, such as a mobile phone, a scanning device, and the like.
Further, the radio frequency signal comprises a power supply starting signal, a temperature detection instruction and a temperature reading instruction.
If the radio frequency interface circuit unit receives the temperature detection instruction, the radio frequency interface circuit unit generates induction current and supplies power to the sensor induction unit. The sensor sensing unit detects the sampling value x of the environment temperature where the commodity is located in real time and transmits the sampling value x to the calculation control unit. The calculation control unit calculates to obtain a temperature value T and judges the temperature value Tmin<T<TmaxAnd if not, sending the temperature value T to the storage unit and the RFID reader-writer. And if yes, sending the temperature value T to the RFID reader-writer.
And if the radio frequency interface circuit unit receives a temperature reading instruction, the passive RFID chip sends all data in the storage unit to the RFID reader-writer.
The commodity information stored in the storage unit mainly comprises vaccine types, product batch numbers, production dates and/or quality guarantee periods.
The clock control module sets a clock module step length TINTN and sends a sensor driving signal every other step length TINTN.
And after receiving the sensor driving signal, the sensor sensing unit measures an environment temperature sampling value x of the commodity and sends the environment temperature sampling value x to the calculation control unit.
The sensor induction unit is a temperature sensor with the measurement range of-20-60 ℃ and the precision of 0.3 ℃.
The calculation control unit stores the highest temperature threshold T of the environment where the commodity is locatedmaxAnd a minimum temperature threshold Tmin。
The calculation control unit calculates and obtains a temperature value T which is Kx + B, and K and B are linear parameters.
The calculation control unit judges the temperature value Tmin<T<TmaxAnd if not, storing the temperature value T into a storage unit, and modifying the step length of the clock module to TINTX. If yes, further judging whether the step length of the clock module is TINTN, if not, resetting the step length of the clock module to TINTN.
If the current passive RFID chip has no stored temperature value in the storage unit and the current temperature value T read by the RFID reader-writermin<T<TmaxAnd judging that the commodity is not invalid.
Example 3:
a passive RFID tag with an external battery mainly comprises a passive RFID chip.
The passive RFID tag is attached to a commodity.
The passive RFID chip integrates a clock control module, a sensor induction unit and a power supply unit.
The power supply unit is used for continuously supplying power for the clock control module.
The clock control module generates a driving signal to the power supply unit every other step, so that the driving power supply unit supplies power to the sensor induction unit instantly.
The sensor sensing unit monitors the sampling value x of the environment temperature where the commodity is located.
The passive RFID tag is attached to a commodity.
Further, the passive RFID chip mainly comprises a radio frequency interface circuit unit, an input interface circuit unit, a calculation control unit and a storage unit.
And the radio frequency interface circuit unit receives radio frequency signals sent by the RFID reader-writer.
Further, the RFID reader is a terminal with an RFID scanning and reading function, such as a mobile phone, a scanning device, and the like.
Further, the radio frequency signal comprises a power supply starting signal, a temperature detection instruction and a temperature reading instruction.
If the radio frequency interface circuit unit receives the temperature detection instruction, the radio frequency interface circuit unit generates induction current and supplies power to the sensor induction unit. The sensor sensing unit detects the sampling value x of the environment temperature where the commodity is located in real time and transmits the sampling value x to the calculation control unit. The calculation control unit calculates to obtain a temperature value T and judges the temperature value T<TmaxAnd if not, sending the temperature value T to the storage unit and the RFID reader-writer. And if yes, sending the temperature value T to the RFID reader-writer.
And if the radio frequency interface circuit unit receives a temperature reading instruction, the passive RFID chip sends all data in the storage unit to the RFID reader-writer.
The commodity information in the storage unit mainly comprises vaccine types, product batch numbers, production dates and/or quality guarantee periods.
The clock control module sets a clock module step length TINTN and sends a sensor driving signal every other step length TINTN.
And after receiving the sensor driving signal, the sensor sensing unit measures an environment temperature sampling value x of the commodity and sends the environment temperature sampling value x to the calculation control unit.
The sensor induction unit is a temperature sensor with the measurement range of-20-60 ℃ and the precision of 0.3 ℃.
The calculation control unit calculates and obtains a temperature value T which is Kx + B, and K and B are linear parameters.
And the calculation control unit stores a normal temperature sequence set A of the environment where the commodity is located.
And after the calculation control unit calculates the temperature value T, the temperature value T is matched with the environment temperature sequence set A where the commodity is located, if the temperature value T is not matched with the environment temperature sequence set A, the temperature value T is stored in the storage unit, and the step length of the clock module is changed from TINTN to TINTX. If the clock module step length is matched with the TINTN, whether the clock module step length is TINTN or not is further judged, and if not, the clock module step length is reset to TINTN.
And if the temperature value is not stored in the storage unit of the current passive RFID chip and the temperature value read by the current RFID reader-writer is matched with the normal temperature sequence set A of the environment where the commodity is located, judging that the commodity is not invalid.
Example 4:
the main technical scheme of this embodiment is the same as that of embodiment 1, and further, the on-off of the external battery and the RFID chip is controlled by the main power switch. I.e. the Vcc master switch controls the switching of Vcc'. Before starting, the main power switch is disconnected, so that the power supply unit does not supply power to any component. At this moment, the label is not combined with the commodity, the electric energy is not consumed, and the label is suitable for long-term storage and transportation.
After the clock is started (attached to a commodity), the main power switch is closed, so that the external battery supplies power to the clock control unit.
The clock control module generates a driving signal to the power supply unit every other step, so that the driving power supply unit supplies power to the sensor sensing unit.
The sensor sensing unit monitors an environmental sampling value x of the commodity.
Generally, the instantaneous pulse current can be used for the sensor sensing unit to work once.
When the sensor sensing unit does not work, the sensor sensing unit does not consume energy, and at the moment, only one low-energy-consumption element of the clock control module exists in the whole passive RFID tag.
Therefore, the passive RFID tag with the external battery can work stably for a long time, has low energy consumption, and is suitable for commodities needing long-distance transportation or long-time storage.
Example 5:
a passive RFID tag with an external battery mainly comprises a passive RFID chip.
The passive RFID tag is attached to a commodity.
The passive RFID chip integrates a clock control module, a sensor induction unit and a power supply unit.
The power supply unit is used for continuously supplying power for the clock control module.
The clock control module generates a driving signal to the power supply unit every other step, so that the driving power supply unit supplies power to the sensor sensing unit.
The sensor sensing unit monitors the sampling value x of the environment temperature where the commodity is located.
Further, the passive RFID chip mainly comprises a radio frequency interface circuit unit, an input interface circuit unit, a calculation control unit and a storage unit.
When the vaccine with the passive RFID label leaves a factory, the radio frequency interface circuit unit receives a power supply starting signal sent by the RFID reader-writer and is communicated with the power supply unit. When the self-power supply unit is connected, the power supply unit is not disconnected any more, and power is continuously supplied to the clock module of the passive RFID chip.
Example 6:
a passive RFID tag with an external battery mainly comprises a passive RFID chip.
The passive RFID tag is attached to a commodity.
The passive RFID chip integrates a clock control module, a sensor induction unit and a power supply unit.
The power supply unit is used for continuously supplying power for the clock control module.
The clock control module generates a driving signal to the power supply unit every other step, so that the driving power supply unit supplies power to the sensor sensing unit.
The sensor sensing unit monitors the sampling value x of the environment temperature where the commodity is located.
Further, the passive RFID chip mainly comprises a radio frequency interface circuit unit, an input interface circuit unit, a calculation control unit and a storage unit.
The radio frequency interface circuit unit receives a temperature detection instruction sent by the RFID reader-writer, generates induction current and supplies power to the sensor induction unit. The sensor sensing unit detects the sampling value x of the environment temperature where the commodity is located in real time and transmits the sampling value x to the calculation control unit. The calculation control unit calculates to obtain a temperature value T and judges the temperature value Tmin<T<TmaxAnd if not, sending the temperature value T to the storage unit and the RFID reader-writer. And if yes, sending the temperature value T to the RFID reader-writer.
Example 7:
a passive RFID tag with an external battery mainly comprises a passive RFID chip.
The passive RFID tag is attached to a commodity.
The passive RFID chip integrates a clock control module, a sensor induction unit and a power supply unit.
The power supply unit is used for continuously supplying power for the clock control module.
The clock control module generates a driving signal to the power supply unit every other step, so that the driving power supply unit supplies power to the sensor sensing unit.
The sensor sensing unit monitors the sampling value x of the environment temperature where the commodity is located.
Further, the passive RFID chip mainly comprises a radio frequency interface circuit unit, an input interface circuit unit, a calculation control unit and a storage unit.
The radio frequency interface circuit unit receives a temperature reading instruction sent by the RFID reader-writer, and the passive RFID chip sends all data in the storage unit to the RFID reader-writer.
Example 8:
a passive RFID tag with an external battery mainly comprises a passive RFID chip.
The passive RFID tag is attached to a commodity.
The passive RFID chip integrates a clock control module, a sensor induction unit and a power supply unit.
The power supply unit is used for continuously supplying power for the clock control module.
The clock control module generates a driving signal to the power supply unit every other step, so that the driving power supply unit supplies power to the sensor sensing unit.
The sensor sensing unit monitors the sampling value x of the environment temperature where the commodity is located.
Furthermore, the RFID chip mainly comprises a radio frequency interface circuit unit, an input interface circuit unit, a calculation control unit and a storage unit.
The commodity information written in the storage unit mainly comprises vaccine types, product batch numbers, production dates and/or quality guarantee periods.
The clock control module sets a clock module step length TINTN and sends a sensor driving signal every other step length TINTN.
And after receiving the sensor driving signal, the sensor sensing unit measures an environment temperature sampling value x of the commodity and sends the environment temperature sampling value x to the calculation control unit.
The calculation control unit stores the highest temperature threshold T of the environment where the commodity is locatedmaxAnd the lowest temperature threshold T of the environment where the commodity is locatedmin。
The calculation control unit calculates and obtains a temperature value T which is Kx + B, and K and B are linear parameters.
The calculation control unit judges the temperature value Tmin<T<TmaxAnd if not, storing the temperature value T into a storage unit, and modifying the step length of the clock module to TINTX. If yes, further judging whether the step length of the clock module is TINTN, if not, resetting the step length of the clock module to TINTN.
If no data are stored in the storage unit of the current passive RFID chip and the temperature value T read by the current RFID reader-writermin<T<TmaxAnd judging that the commodity is not invalid.
Example 9:
a passive RFID tag with an external battery mainly comprises a passive RFID chip.
The passive RFID tag is attached to a commodity.
The passive RFID chip integrates a clock control module, a sensor induction unit and a power supply unit.
The power supply unit is used for continuously supplying power for the clock control module.
The clock control module generates a driving signal to the power supply unit every other step, so that the driving power supply unit supplies power to the sensor sensing unit.
The sensor sensing unit monitors the sampling value x of the environment temperature where the commodity is located.
Further, the passive RFID chip mainly comprises a radio frequency interface circuit unit, an input interface circuit unit, a calculation control unit and a storage unit.
The commodity information written in the storage unit mainly comprises vaccine types, product batch numbers, production dates and/or quality guarantee periods.
The clock control module sets a clock module step length TINTN and sends a sensor driving signal every other step length TINTN.
And after receiving the sensor driving signal, the sensor sensing unit measures an environment temperature sampling value x of the commodity and sends the environment temperature sampling value x to the calculation control unit.
The calculation control unit stores the highest temperature threshold T of the environment where the commodity is locatedmaxAnd the lowest temperature threshold T of the environment where the commodity is locatedmin。
The calculation control unit calculates and obtains a temperature value T which is Kx + B, and K and B are linear parameters.
The calculation control unit judges the temperature value Tmin<T<TmaxAnd if the step length of the clock module is TINTN, the step length TINTN of the clock module is kept unchanged, and the clock control module continues to send a sensor driving signal to the sensor sensing unit every TINTN step length.
Example 10:
a passive RFID tag with an external battery mainly comprises a passive RFID chip.
The passive RFID tag is attached to a commodity.
The passive RFID chip integrates a clock control module, a sensor induction unit and a power supply unit.
The power supply unit is used for continuously supplying power for the clock control module.
The clock control module generates a driving signal to the power supply unit every other step, so that the driving power supply unit supplies power to the sensor sensing unit.
The sensor sensing unit monitors the sampling value x of the environment temperature where the commodity is located.
Further, the passive RFID chip mainly comprises a radio frequency interface circuit unit, an input interface circuit unit, a calculation control unit and a storage unit.
The commodity information written in the storage unit mainly comprises vaccine types, product batch numbers, production dates and/or quality guarantee periods.
The clock control module sets a clock module step length TINTN and sends a sensor driving signal every other step length TINTN.
And after receiving the sensor driving signal, the sensor sensing unit measures an environment temperature sampling value x of the commodity and sends the environment temperature sampling value x to the calculation control unit.
The calculation control unit stores the ambient temperature threshold T of the commoditymax。
The calculation control unit calculates and obtains a temperature value T which is Kx + B, and K and B are linear parameters.
The calculation control unit judges that the temperature value T is more than or equal to TmaxAnd storing the temperature value T into a storage unit and modifying the step length of the clock module to TINTX. After every other step length TINTX, the clock control module continues to send a sensor driving signal to the sensor sensing unit until T<TmaxThen the clock control module modifies the step length of the clock module to TINTN.
Example 11:
a passive RFID tag with an external battery mainly has a structure shown in embodiment 4, wherein the RFID tag of any commodity has digital identity certificate information Ei，j. Wherein i is a commodity production serial number. i is 1,2, …, l. j is the number of times the RFID tag writes digital identity certificate information. j is 1,2, …, k. The digital identity certificate information is a random number.
When any commodity leaves factory for the first time, the RFID label arranged on the commodity is written in the digital identity certificate information E of the commodityi，1. The basic database of each authentication center stores a commodity verification information set Q ═ { Q ═ Qi,1I.e., j is 1.
Example 12:
a passive RFID label with an external battery has a main structure shown in an embodiment 4, wherein the method for judging whether a commodity is true or false comprises the following steps: 1) and building a finite field block chain system with a closed-loop authentication system. The finite field block chain system mainly comprises m authentication centers. Each authentication center stores a commodity authentication information set Q. Business supportProduct authentication information set Q ═ Qi,1、Qi,2、…、Qi,j}. And i is the commodity production serial number. i is 1,2, …, l. j is the number of times the RFID tag of the article writes a message. j is 1,2, …, k. Commodity authentication information Qi,jIs digital identity certificate information Ei,jAnd (4) carrying out hash operation on the obtained hash value.
Having digital identity certificate information E in RFID tag of any one articlei，j. Wherein i is a commodity production serial number. i is 1,2, …, l. j is the number of times the RFID tag writes digital identity certificate information. j is 1,2, …, k. The digital identity certificate information is a random number.
When any commodity leaves factory for the first time, the RFID label arranged on the commodity is written in the digital identity certificate information E of the commodityi，1. The basic database of each authentication center stores a commodity verification information set Q ═ { Q ═ Qi,1I.e., j is 1.
2) And the RFID reader scans the RFID label of the to-be-detected commodity and initiates a request for verifying the authenticity of the to-be-detected commodity to the finite field block chain system. The RFID reader-writer enables digital identity certificate information E in the RFID label of the commodity to be detectedi，jAnd sending the information to an authentication center.
3) The authentication center performs authentication on the digital identity certificate information Ei，jCarrying out Hash operation to obtain information Hi，j。
The authentication center sends information Hi，jAnd respectively carrying out comparison operation with each element in the commodity verification information set Q.
If the message Hi，jAnd if any element in the commodity verification information set Q is not matched, the commodity to be detected is a fake commodity, and the verification information of the commodity to be detected, which indicates that the commodity to be detected is fake, is generated.
If the message Hi，jAnd Q is divided from the commodity verification information set Qi,jAnd if other elements are matched, the commodity to be detected is suspicious, and verification information of the commodity to be detected is generated.
If the message Hi，1And the commodity authentication information setQ in Qi,jAnd if the verification information is matched, the commodity to be detected is a genuine commodity, and verification information of the commodity to be detected which is genuine is generated.
Each authentication center verifies the information Q of the commodity to be testedi,jAnd digital identity certificate information Ei，jProcessed as bibliographic transaction information and broadcast the bibliographic transaction information in a finite field blockchain system.
3) And the finite field block chain system receives the judgment results of the m authentication centers and judges whether the commodity is true or false according to a majority principle.
And if the commodity is false, the finite field block chain system sends the judgment result to the RFID reader-writer. And the RFID reader displays that the commodity is false. And the limited domain block chain system records the scanning time and the physical address of the RFID reader-writer. And the finite field block chain system finishes the authenticity verification of the commodity, enters the next closed-loop authentication process and waits for the next commodity authenticity verification request of the RFID reader.
And if the commodity is true or false and suspicious, the finite field block chain system sends the judgment result to the RFID reader-writer. And the RFID reader displays that the commodity is true or false and suspicious. And the limited domain block chain system records the scanning time and the physical address of the RFID reader-writer. And the finite field block chain system finishes the authenticity verification of the commodity, enters the next closed-loop authentication process and waits for the next commodity authenticity verification request of the RFID reader.
If the goods is true, go to step 4.
4) The authentication center generates digital identity certificate information Ei，j+1And sending to the RFID reader. The RFID reader-writer sends digital identity certificate information Ei，j+1Writing into the RFID label of the tested commodity judged to be true to replace the original Ei，j. The digital identity certificate information Ei, j+1The information of the new commodity digital identity certificate is used for verifying the authenticity of the commodity to be detected next time by the RFID reader.
For digital identity certificate information Ei，j+1Carrying out Hash operation to obtain a commodity verification message Qi,j+1. The base database stores and message corresponds to Ei，j+1Commodity authentication message Q ofi,j+1That is, the product authentication information set is updated to Q ═ Qi,1、Qi,2、…、Qi,j、Qi,j+1}. The goods authentication message Qi,j+1And the product is used for verifying the authenticity of the next product. The second commodity verification message Q in the updated commodity verification information set Qi,2As the bibliographic event information, and broadcasting the first commodity verification message Q in the finite field blockchain system with closed-loop authentication systemi,1And newly generated commodity authentication information Qi,j+1And no broadcast.
And the finite field block chain system finishes the authenticity verification of the commodity, enters the next closed-loop authentication process and waits for the next commodity authenticity verification request of the RFID reader.
Example 13
In this example, the RFID tag was applied to a vaccine. To prevent the tag from being replaced, an RFID tag with a random status bit is used.
When the RFID reader reads the RFID chip, the RFID reader can read the state information generated by the interactive switch interface circuit unit through the calculation control unit according to the requirement.
The electronic label at least has a specific bonding surface. The specific combination surface comprises a plurality of conductive contacts. The conductive contacts are electrically connected with the interactive switch ports on the RFID chip with the interactive switch ports respectively.
The topological nodes formed by the conductive contacts are electrically connected into one or more groups of topological connection relations due to the fact that one external part is attached to a specific joint surface.
When the external part and the specific joint surface are jointed together randomly, the conductive geometric figures on the specific joint surface are jointed randomly, and then the interactive switch interface circuit unit acquires a group of initial state bit information.
When the external part is separated from the specific joint surface and then attached again, the conductive geometric figures on the specific joint surface are attached again randomly, and then the interactive switch interface circuit unit acquires a group of state bit information again.
After the initial state bit information is formed, if the application system reads that the state bit information of the electronic tag is not the initial state bit information, the application system determines that the external component and the specific joint surface are separated once.
Claims (15)
1. The utility model provides a take passive RFID chip of external battery which characterized in that: the radio frequency interface circuit unit comprises a radio frequency interface circuit unit in a passive working state and a calculation control unit; the clock control unit and the environmental parameter monitoring unit are powered by an external battery; and a storage unit;
when the external battery is communicated with the RFID chip, the clock control module is continuously supplied with power;
the clock control module generates a driving signal every other time step so as to drive an external battery to supply power for the sensor sensing unit; and when the sensor sensing unit is electrified, monitoring an environmental sampling value x of the commodity.
2. The utility model provides a take passive RFID label of external battery which characterized in that: the RFID chip of claim 1, an external power supply battery and an RFID antenna;
when the RFID label is read by an external reader-writer, the radio frequency interface circuit unit, the calculation control unit and the storage unit receive power supplied by the external reader-writer and carry out reading, writing or functional operation according to the requirement.
3. A passive RFID chip with external battery according to claim 1 or 2, characterized in that: the memory cell records the sampled value x.
4. A passive RFID chip with external battery according to claim 1 or 2, characterized in that: and the sampling value x of the sensing unit of the environmental parameter sensor is the sampling value of the temperature, the humidity and the air pressure of the environment where the commodity is located.
5. A passive RFID chip with external battery according to claim 2 or 4, characterized in that: and when the sampling value x exceeds a preset threshold value, the storage unit records the sampling value x.
6. A passive RFID tag with an external battery according to claim 1 or 2, characterized in that:
the radio frequency interface circuit unit receives a radio frequency signal sent by the RFID reader-writer;
the calculation control unit calculates an environment temperature value T of the commodity as Kx + B based on the environment sampling value x of the commodity, and K and B are linear parameters;
the storage unit stores the ambient temperature value T of the commodity and commodity information.
7. The passive RFID chip with external battery of claim 1, wherein: the radio frequency signal instruction comprises a special power supply starting instruction, a temperature detection instruction and a temperature reading instruction;
if the radio frequency interface circuit unit receives a special power supply starting instruction, the active working part in the RFID chip is communicated with an external power supply battery;
if the radio frequency interface circuit unit receives the special temperature detection instruction, the radio frequency interface circuit unit generates induction current and supplies power to the sensor induction unit; the sensor sensing unit detects the sampling value x of the environment where the commodity is located in real time and transmits the sampling value x to the calculation control unit;
and if the radio frequency interface circuit unit receives a special temperature reading instruction, the RFID chip sends all data in the storage unit to the RFID reader-writer.
8. A passive RFID tag with an external battery according to claim 1,2 or 4, characterized in that: the RFID chip can set the highest threshold value T of the environmental parameter allowed by the commodity through a special instruction by an external reader-writer according to the storage and transportation requirements of the corresponding commoditymaxAnd a minimum threshold T for allowable environmental parameters of the goodsminAnd time step TINTN and TINTX of environmental parameter monitoring;
when the time step TINTN or TINTX count of the clock control unit is full, starting an environment parameter monitoring unit to detect and calculate to obtain an environment parameter value T which is Kx + B, wherein K and B are linear parameters;
the environment parameter monitoring unit judges an environment parameter value Tmin<T<TmaxIf the time step counting period is not the next time step counting period, storing the environmental parameter value T to a storage unit in real time, setting the time step of the clock control unit as TINTX, and entering the next time step counting period; and if so, setting the time step of the clock control unit to TINTN, and simultaneously entering the next time step counting period.
9. A passive RFID tag with an external battery according to claims 1 and 2, characterized in that: the time step TINTN of the clock control unit is the environmental parameter monitoring time interval when the commodity is in the normal environmental parameter range; TINTX is the environmental parameter monitoring time interval when the commodity is in the range exceeding the environmental parameter; TINTN and TINTX may be different or the same.
10. A passive RFID tag with an external battery according to claims 1,2 and 4, characterized in that: and if the temperature value T is not stored in the storage unit of the current passive RFID chip, judging that the commodity does not have the state exceeding the environmental parameters and is not invalid.
11. The passive RFID tag of claim 1, wherein: the commodity is vaccine, biopharmaceutical, blood preparation, and all cold chain logistics commodities.
12. The passive RFID tag of claim 1, wherein: the external power supply unit is a paper battery.
13. The passive RFID tag of claim 1, wherein: the passive operating state part also comprises an input interface circuit unit.
14. A passive RFID tag with an external battery according to claims 1,2, 10, 11, 13, characterized in that: the outer surface of the electronic tag is provided with a specific joint surface consisting of conductive geometric figures; the specific joint surface is distributed with a plurality of conductive contacts which are respectively connected with the contacts of the input interface unit; the electronic tag changes the on-off condition of the conductive circuit of the electronic tag through random attachment of another component on a specific joint surface of the electronic tag, so that random state codes are generated.
15. A passive RFID tag with an external battery according to claims 1,2, 10, 11, 13, characterized in that: adopting an RFID label with a random state bit; when the RFID reader reads the RFID chip, the RFID reader can read the state information generated by the interactive switch interface circuit unit through the calculation control unit according to the requirement;
after the initial state bit information is formed, if the application system reads that the state bit information of the electronic tag is not the initial state bit information, the application system determines that the external component and the specific joint surface are separated once.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019105028190 | 2019-06-11 | ||
| CN201910502819 | 2019-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112070196A true CN112070196A (en) | 2020-12-11 |
| CN112070196B CN112070196B (en) | 2023-09-15 |
Family
ID=73658395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910602294.8A Active CN112070196B (en) | 2019-06-11 | 2019-07-05 | Passive RFID chip with external battery and tag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112070196B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113630664A (en) * | 2021-07-19 | 2021-11-09 | 上海浦东发展银行股份有限公司 | Data acquisition and transmission system and method |
| WO2022160231A1 (en) * | 2021-01-29 | 2022-08-04 | 华为技术有限公司 | Method and apparatus for reading data |
| CN115796683A (en) * | 2022-12-02 | 2023-03-14 | 武汉万驰机械设备租赁有限公司 | Electronic anti-counterfeit label production monitoring management system based on artificial intelligence |
| CN113630664B (en) * | 2021-07-19 | 2024-06-07 | 上海浦东发展银行股份有限公司 | Data acquisition and transmission system and method |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008107367A1 (en) * | 2007-03-06 | 2008-09-12 | Zentrum Mikroelektronik Dresden Ag | Arrangement and method for forming a temperature-time product |
| CN101473550A (en) * | 2006-07-27 | 2009-07-01 | Ut斯达康通讯有限公司 | Method for calculating CQI during HS-PDSCH halt transmission period in UTRATDDHCR system, terminal UE capable of implementing the method, wireless communication system containing the UE and program pr |
| US20090303009A1 (en) * | 2008-06-06 | 2009-12-10 | Fujitsu Limited | Information processing apparatus for transmitting and receiving RF signals |
| CN201927070U (en) * | 2010-12-24 | 2011-08-10 | 深圳市远望谷信息技术股份有限公司 | Semi-active RFID e-tag with temperature sensor |
| CN102620852A (en) * | 2011-01-31 | 2012-08-01 | 北京昆仑海岸传感技术有限公司 | Intelligent sensor possessing RFID function and capable of storing temperature |
| CN105700595A (en) * | 2016-03-15 | 2016-06-22 | 深圳市前海博森生物科技有限公司 | Plant factory environment monitoring system and method thereof based on Android platform |
| CN105740602A (en) * | 2016-01-22 | 2016-07-06 | 电子信息***复杂电磁环境效应国家重点实验室 | Test electromagnetic signal environment construction method and system |
| CN107067263A (en) * | 2016-02-05 | 2017-08-18 | 四川谦泰仁投资管理有限公司 | A kind of method that binary system stochastic regime coding is provided for commodity |
| US20180040939A1 (en) * | 2014-09-29 | 2018-02-08 | Rfmicron, Inc. | RADIO FREQUENCY IDENTIFICATION (RFID) TAG(S) and SENSOR(S) |
| CN107919158A (en) * | 2016-10-10 | 2018-04-17 | 成都锐成芯微科技股份有限公司 | Keep the method and system of non-volatility memorizer memory cell current detection window |
| CN108229437A (en) * | 2018-02-02 | 2018-06-29 | 王辉 | Image analysis system based on cloud computing |
| CN109086641A (en) * | 2018-09-13 | 2018-12-25 | 国网浙江省电力有限公司宁波供电公司 | The self-adapting tuning label of integrating passive wireless sensor |
| CN109690758A (en) * | 2016-07-26 | 2019-04-26 | 荷兰应用自然科学研究组织Tno | For chip to be bonded to the method and system of substrate |
-
2019
- 2019-07-05 CN CN201910602294.8A patent/CN112070196B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473550A (en) * | 2006-07-27 | 2009-07-01 | Ut斯达康通讯有限公司 | Method for calculating CQI during HS-PDSCH halt transmission period in UTRATDDHCR system, terminal UE capable of implementing the method, wireless communication system containing the UE and program pr |
| WO2008107367A1 (en) * | 2007-03-06 | 2008-09-12 | Zentrum Mikroelektronik Dresden Ag | Arrangement and method for forming a temperature-time product |
| US20090303009A1 (en) * | 2008-06-06 | 2009-12-10 | Fujitsu Limited | Information processing apparatus for transmitting and receiving RF signals |
| CN201927070U (en) * | 2010-12-24 | 2011-08-10 | 深圳市远望谷信息技术股份有限公司 | Semi-active RFID e-tag with temperature sensor |
| CN102620852A (en) * | 2011-01-31 | 2012-08-01 | 北京昆仑海岸传感技术有限公司 | Intelligent sensor possessing RFID function and capable of storing temperature |
| US20180040939A1 (en) * | 2014-09-29 | 2018-02-08 | Rfmicron, Inc. | RADIO FREQUENCY IDENTIFICATION (RFID) TAG(S) and SENSOR(S) |
| CN105740602A (en) * | 2016-01-22 | 2016-07-06 | 电子信息***复杂电磁环境效应国家重点实验室 | Test electromagnetic signal environment construction method and system |
| CN107067263A (en) * | 2016-02-05 | 2017-08-18 | 四川谦泰仁投资管理有限公司 | A kind of method that binary system stochastic regime coding is provided for commodity |
| CN105700595A (en) * | 2016-03-15 | 2016-06-22 | 深圳市前海博森生物科技有限公司 | Plant factory environment monitoring system and method thereof based on Android platform |
| CN109690758A (en) * | 2016-07-26 | 2019-04-26 | 荷兰应用自然科学研究组织Tno | For chip to be bonded to the method and system of substrate |
| CN107919158A (en) * | 2016-10-10 | 2018-04-17 | 成都锐成芯微科技股份有限公司 | Keep the method and system of non-volatility memorizer memory cell current detection window |
| CN108229437A (en) * | 2018-02-02 | 2018-06-29 | 王辉 | Image analysis system based on cloud computing |
| CN109086641A (en) * | 2018-09-13 | 2018-12-25 | 国网浙江省电力有限公司宁波供电公司 | The self-adapting tuning label of integrating passive wireless sensor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022160231A1 (en) * | 2021-01-29 | 2022-08-04 | 华为技术有限公司 | Method and apparatus for reading data |
| CN113630664A (en) * | 2021-07-19 | 2021-11-09 | 上海浦东发展银行股份有限公司 | Data acquisition and transmission system and method |
| CN113630664B (en) * | 2021-07-19 | 2024-06-07 | 上海浦东发展银行股份有限公司 | Data acquisition and transmission system and method |
| CN115796683A (en) * | 2022-12-02 | 2023-03-14 | 武汉万驰机械设备租赁有限公司 | Electronic anti-counterfeit label production monitoring management system based on artificial intelligence |
| CN115796683B (en) * | 2022-12-02 | 2023-09-01 | 成都星盘科技有限公司 | Electronic anti-counterfeit label production monitoring management system based on artificial intelligence |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112070196B (en) | 2023-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101501705B (en) | Smart tag activation | |
| US8528825B2 (en) | Long range RFID device as modem and systems implementing same | |
| US8941496B2 (en) | Long range RFID device for battery monitoring and systems implementing same | |
| CN100419788C (en) | Wireless tag, wireless tag reader/writer, wireless tag information provision method, and wireless tag system | |
| US7348875B2 (en) | Semi-passive radio frequency identification (RFID) tag with active beacon | |
| CN202159352U (en) | Temperature measurement system used for train part | |
| US6130603A (en) | Low-powered RF-linked price display system | |
| US7019618B2 (en) | Wireless communications systems, radio frequency identification devices, wireless communications methods, and radio frequency identification device communications methods | |
| US7375637B2 (en) | Methods and apparatus for reducing power consumption of an active transponder | |
| US8733664B2 (en) | Apparatus and method for supplying an RFID component with energy | |
| US7317382B2 (en) | Remote communications devices, wireless communications systems, and wireless communications methods | |
| CN101438331A (en) | RF device comparing DAC output to incoming signal for selectively performing an action | |
| CN101216876A (en) | A transport monitoring system and method on sensing radio frequency identification and general packet wireless service | |
| CN108574738A (en) | One kind is based on NB-IOT Cold Chain Logistics processes refrigeration monitoring system and method | |
| US7855644B2 (en) | Method and apparatus for disabling an active data tag device | |
| CN112070196A (en) | Passive RFID chip with external battery and tag | |
| US20080157925A1 (en) | Long range rfid device used with display, and systems and methods implementing same | |
| CN101855641A (en) | Chip card comprising a display | |
| CN112949809B (en) | RFID electronic tag and tag power-on communication method | |
| CN105476194A (en) | Electronic school badge based on RFID (radio frequency identification) technology and having step counting function as well as control method of electronic school badge | |
| US7130583B2 (en) | Wireless communication devices and movement monitoring methods | |
| CN201145907Y (en) | System for monitoring sensing radio frequency recognition and all-purpose grouping wireless service transportation | |
| US11062099B1 (en) | System and method for wearable, ubiquitous RFID-enabled sensing | |
| EP3244341A1 (en) | Reader with electromagnetic coupling | |
| KR100766068B1 (en) | Inactive sensor node detection apparatus for ubiquitous sensor network and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |