WO2005106782A1 - Etiquette ci et dispositif de prevention d’abus utilisant une etiquette ci - Google Patents

Etiquette ci et dispositif de prevention d’abus utilisant une etiquette ci Download PDF

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Publication number
WO2005106782A1
WO2005106782A1 PCT/JP2005/007860 JP2005007860W WO2005106782A1 WO 2005106782 A1 WO2005106782 A1 WO 2005106782A1 JP 2005007860 W JP2005007860 W JP 2005007860W WO 2005106782 A1 WO2005106782 A1 WO 2005106782A1
Authority
WO
WIPO (PCT)
Prior art keywords
tag
switch
tag according
sensor
communication
Prior art date
Application number
PCT/JP2005/007860
Other languages
English (en)
Japanese (ja)
Inventor
Takashi Hasegawa
Isao Sakaguchi
Shousuke Matsuura
Masayuki Hosogi
Original Assignee
Ic Brains Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2004132420A external-priority patent/JP2005316628A/ja
Priority claimed from JP2004137251A external-priority patent/JP2005321853A/ja
Priority claimed from JP2004140829A external-priority patent/JP2005322119A/ja
Priority claimed from JP2004324985A external-priority patent/JP2006134223A/ja
Priority claimed from JP2004344726A external-priority patent/JP2006155237A/ja
Application filed by Ic Brains Co., Ltd. filed Critical Ic Brains Co., Ltd.
Publication of WO2005106782A1 publication Critical patent/WO2005106782A1/fr

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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
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • 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
    • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
    • G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
    • G06K19/07372—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit
    • G06K19/07381—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit with deactivation or otherwise incapacitation of at least a part of the circuit upon detected tampering

Definitions

  • the present invention relates to an IC tag with a replacement prevention function, an IC tag with a breakage detection function, an IC tag with a write-once function, an active IC tag with a variable transmission cycle, and an unauthorized removal prevention device using the IC tag.
  • Japanese Patent Application Laid-Open No. 2000-151459 discloses that when an IC tag is removed from an article, the connection between the IC and the antenna is destroyed to prevent the IC tag from being replaced. Suggested way to do it!
  • Patent Document 1 JP-A-2000-151459
  • the temperature inside the car varies depending on the outside air temperature, sunshine conditions, the frequency of opening and closing doors, and the like.
  • the vibration in the vehicle changes depending on road conditions and driving manner.
  • the IC tag used for temperature management receives electromagnetic waves with a reader Z writer's power more than an active tag with a built-in battery that becomes inoperable when the ambient temperature drops to, for example, -20 ° C or lower, and sets it as an operation power supply. Passive tags are preferred.
  • the recorded contents are taken out and checked after all the measurements are completed, so a time lag occurs, and during that time, the recorded contents can be falsified or forged.
  • the records can be tampered with after removal of the tag and before submission to the client.
  • the consumer can know the history information of the food using a reader or the like provided in the store, and can purchase the product with confidence.
  • Food history information is recorded individually by each trader at each stage such as production, distribution, and sale, but under the present circumstances, information recorded by a previous trader can be falsified by a later trader. For this reason, there is a risk that the store alters the information recorded by the producer, such as the raw materials and the expiration date, and sells the product.
  • an active tag that automatically transmits an ID can be attached to a person or a moving object, and performs gate control such as an electric lock and entrance / exit control that controls the opening / closing of an automatic door. Since the distance is long, there is no need to press the interrogator, and this is convenient when both hands are occupied by luggage.
  • the timing of detecting an ID is early, so even if a person or a moving object is far away, the gate opens at an early stage, making it difficult to ensure security.
  • an active tag emits an ID by itself, and therefore has a built-in battery to replace or charge the battery. I need.
  • the ID is transmitted at a pre-determined cycle, and shortening the transmission cycle increases battery consumption. Therefore, the normal transmission cycle is set to be considerably long, for example, 3 to 30 seconds. For this reason, the ID detection timing is delayed because the ID is not transmitted for a long time, and the gate may be opened even when a person or an animal comes closer.
  • an IC tag for wirelessly exchanging data with a reader / writer is added to a product, and a gate with an antenna is installed at the entrance of a warehouse or a store, so that the product can be sold in the distribution process leading to sales. It is possible to obtain inventory information and inventory information in real time to prevent unauthorized removal of products.
  • the IC tag communicates with the reader / writer using a long-wave band of 135 kHz or less, a short-wave band of 13.56 MHz, or a microwave band of 2.45 GHz, but if there is metal between the IC tag and the reader / writer, a magnetic field will occur. And radio waves are absorbed by metal, making it difficult to communicate in any band.
  • the magnetic field may diffract through a gap between the metals and may be able to communicate, but the communication distance is extremely short.
  • the current generated in the metal flows in the direction to cancel the magnetic field of the IC tag, so that the IC tag can hardly obtain an electromotive force.
  • the antenna is out of tune and communication is not possible.
  • 2.45GHz band radio waves like those used in microwave ovens, are well absorbed by water and do not pass through the human body.
  • the IC tag is covered with a metal such as an aluminum sheet or a hand, there is a problem that communication becomes impossible and the vehicle can easily pass through the gate.
  • the first problem to be solved by the present invention is that, in the conventional method, the IC and the antenna are separated, so that the IC tag cannot be read, and it is difficult to visually confirm the illegality.
  • the first invention has been made to enable reading of the removed IC tag and to facilitate visual inaccuracy recognition.
  • the second problem is that, in the case of the offline method in which the measurement results are recorded in the memory of the! -Tag and retrieved later, a time lag occurs, and during that time, the recorded contents can be falsified or forged.
  • the second invention is intended to make it difficult to remove a tag attached to an article or an inside of a car and prevent fraudulent acts such as falsification or fabrication of recorded contents. .
  • a third problem is that when an IC tag is used for traceability, information recorded in an earlier stage may be falsified in a later stage. It is intended to protect the recorded information from later tampering.
  • a fourth problem is that the gate control of the conventional active tag is difficult to perform at an appropriate timing, and the gate control becomes uncertain.
  • the fourth invention is an active tag that can reliably perform the gate control. It is intended to provide tags.
  • a fifth problem is that communication cannot be performed if the IC tag is covered with a metal or a hand.
  • the fifth invention detects a communication disturbance by a metal or a hand to prevent unauthorized removal of an article with an IC tag. It was intended to do so.
  • the first invention is characterized in that a switch for breaking the circuit when a predetermined external force or more is applied to the data input circuit of the IC to insert a switch for interrupting the circuit, inputting the state of the switch, and the state of the input switch.
  • a switch for breaking the circuit when a predetermined external force or more is applied to the data input circuit of the IC to insert a switch for interrupting the circuit, inputting the state of the switch, and the state of the input switch.
  • the second invention is a transmitting means for transmitting an ID to the active tag at a fixed transmitting cycle, a receiving means for receiving the transmitted radio wave of the interrogator, and a measurement for measuring the received voltage of the received radio wave transmitted by the interrogator.
  • the most main feature of the present invention is to include means for changing the transmission cycle according to the measured reception voltage.
  • the third invention provides a first communication means for communicating between an antenna installed at the gate and an IC tag passing through the gate, a second communication means for communicating between antennas installed at the gate, and the first communication means. Switching means for switching to the second communication means when the communication means detects communication failure, and notification means for notifying an alarm when the second communication means detects communication failure after switching.
  • an AZD converter having an analog input terminal to be connected to the sensor is built in the IC, and a switch that is damaged when an external force exceeding a predetermined value is applied to the analog input terminal is connected, and the switch is damaged. In some cases, the most important feature is to disable input from the subsequent sensors.
  • the fifth invention is directed to a peelable label mounted on a surface base material of an inlet, a switch set to be broken when the label is peeled off, and a memory to which writing is prohibited when the switch is broken.
  • a switch that breaks when an external force exceeding a predetermined level is applied and disconnects the circuit is added to the IC to detect replacement, and thus replacement is detected without impairing the original function of the IC tag. become able to. Therefore, there is no trouble in reading the removed IC tag. Further, when the switch is broken, the ink liquid inside leaks out and adheres to the periphery of the switch, so that the replacement of the IC tag can be easily visually confirmed.
  • a switch that is damaged when an external force exceeding a predetermined level is applied is connected to an analog input terminal of the AZD converter to detect the removal of the tag, and when the removal is detected, an input from the sensor is performed. Therefore, it is impossible to illegally rewrite the recorded contents after removing the tag.
  • the removed tag cannot be moved to another location and recorded.
  • the switch when the label of the inlet is peeled, the switch is damaged, and when the switch is damaged, writing to the memory is prohibited. Therefore, the timing of write-once can be controlled by peeling the label. . Therefore, if the label is peeled off when the information is determined, the information recorded at that stage is surely protected.
  • the proximity of the active tag can be determined by the transmission period of the ID.
  • gate control can be performed at an appropriate timing.
  • the ID transmission cycle is shortened only when approaching the interrogator, the battery consumption of the active tag, which is often spent most of the time in a distant place, is not wasted.
  • communication between the antenna installed in the gate and the IC tag becomes impossible, communication is switched to communication between the antennas, so that communication disturbance by metal or hand can be reliably detected.
  • FIGS. 1 and 2 show a plan view and a cross-sectional view of an IC tag with a replacement prevention function according to the first invention.
  • the figure shows an example of an electromagnetic induction type IC tag that mainly uses the frequency band below 150 kHz or 13.56 MHz!
  • the IC tag with the anti-replacement function has a sheet shape, and an inlet 5 is formed by bonding an antenna coil 2 and a break switch 3 to an IC chip 1 on a substrate sheet 4 such as a PET film.
  • the breaking switch 3 has a structure in which when an external force exceeding a predetermined level is applied, the breaking switch 3 breaks and interrupts the circuit.
  • the inlet 5 is coated with an adhesive a on the periphery of the substrate sheet 4 and on the break switch 3 and is covered with a surface seal 6.
  • a release paper 7 that has been subjected to a release treatment is applied, thereby forming an IC tag.
  • the release paper 7 is peeled off, and the IC tag is attached to an article or the like.
  • FIGS. 3 and 4 are enlarged plan views and cross-sectional views of the break switch.
  • the rupture switch 3 is formed by forming a membrane 31 on the substrate 4 by using a thick film printing technique, and coating the membrane 31 with a knocking 32 of a fragile material to form a bag-like liquid storage layer 33. Fill with conductive ink liquid b.
  • Electrodes 34 are arranged at both ends of the liquid storage layer 33, and are connected to the IC chip 1 via the lead wires 35.
  • the width of the weakened line c is such that the width of the cut is increased regardless of the direction in which the line is pulled in the vertical and horizontal directions.
  • a paint that absorbs the ink liquid b may be applied to the surface of the substrate 4, or a tape such as paper or cloth that absorbs the ink liquid b may be applied.
  • the breaking switch 3 may be energized by connecting both ends of the liquid storage layer 33 with conductive thin wires d which are easily cut.
  • the membrane 31 and the packing 32 may be formed of a metal foil such as aluminum and energized.
  • the breaking switch 3 is made of a thin wire d or a metal foil as described above, the ink liquid b in the liquid storage layer 33 does not need to be conductive and may be a normal one.
  • the liquid storage layer 33 may be omitted.
  • a thin wire d or a metal foil is directly connected to the lead wire 35.
  • FIG. 6 shows a block diagram of an IC tag embodying the first invention.
  • This IC tag has a configuration in which an antenna coil 2 is connected to an antenna connection portion of an IC chip 1 and a break switch 3 is connected to a data input portion of the IC chip 1.
  • the IC chip 1 is composed of a rectifier circuit 11, a demodulation circuit 12, a modulation circuit 13, and a clock circuit 14, which are connected to the antenna coil 2, an analog circuit section, and a digital circuit section including a CPU 15 and a memory 16.
  • the IC tag with the replacement prevention function is configured as described above.
  • the reader / writer 8 modulates the ID read signal and applies it to the antenna coil 9, an induced electromagnetic field is generated and the tag antenna antenna 2 , An induced voltage is generated.
  • the induced voltage is rectified by a rectifier circuit 11 to be used as an operation power supply, and a clock circuit 14 generates a clock for IC synchronization using the frequency.
  • the demodulation circuit 12 demodulates the read signal received from the reader / writer 8 while synchronizing with the clock. And the read ID is modulated by the modulation circuit 13 and transmitted from the antenna coil 2.
  • the CPU 15 performs the input processing of the break switch 3, adds the input switch state to the ID, and transmits the ID to the reader / writer 8. That is, an input command is executed for an IO port (not shown) between the CPU 15 and the break switch 3, the state of the break switch 3 at that time is read, and the read state is added to the ID and transmitted to the reader Z writer 8.
  • the IC tag with a replacement prevention function embodying the first invention has the above-described configuration.
  • an attempt is made to peel off the IC tag that is, an external force exceeding a predetermined level acts.
  • the film-shaped substrate 4 is pulled, and the cut width of the weakening line c inserted in the substrate 4 is increased.
  • the conductive ink liquid b leaks out and the ink liquid b diffuses and adheres to the surface of the substrate 4 around the break switch 3.
  • the break switch 3 When the conductive ink liquid b leaks out, the break switch 3 is turned off. Therefore, the state of the switch added when reading the ID is identified, and the reader Z writer 8 can also detect that the IC tag has been peeled off.
  • the break switch 3 is turned off by cutting the thin line d or the metal foil, and the reader Z writer is turned off. Peeling can be detected on the 8 side.
  • the circuit can detect an improper opening or closing of the door.
  • the IC tag with a breakage detection function according to the second invention has an antenna coil 2 and a break switch 3 on an IC chip 1 similarly to the IC tag with a replacement prevention function of the first invention.
  • a substrate 4 such as a PET film to form an inlet 5.
  • FIG. 9 shows a block diagram of an IC tag with a damage detection function embodying the second invention.
  • the IC tag with a damage detection function has a configuration in which an antenna coil 2 is connected to an antenna connection portion of an IC chip 1 and a break switch 3 is connected in series to a sensor input portion.
  • the IC chip 1 has an analog data transmission / reception unit including a rectifier circuit 11, a demodulation circuit 12, a modulation circuit 13, and a clock circuit 14 connected to the antenna coil 2, and a digital data transmission / reception unit including a CPU 15, a memory 16, and a ⁇ / ⁇ converter 7. It is composed of a data processing unit and an analog sensor input unit consisting of a sensor amplifier 18 and a sensor 19 sandwiching the breaking switch 3.
  • the sensor 19 includes a time sensor for measuring time using a resistance change or the like accompanying the progress of metal oxidation, a thermoelectromotive force of a thermocouple or a resistance of a platinum resistance thermometer or a thermistor temperature detector. Temperature sensor to measure temperature using resistance change, humidity sensor to measure humidity using resistance change and capacitance change of organic polymer material, resistance change of ceramic material, voltage change of piezoelectric ceramics And a vibration sensor that measures vibration using a change in resistance of a piezoresistive element, a change in capacitance of a displacement electrode, or a change in resistance of a material whose coupling structure is loosened due to vibration.
  • the time sensor changes the electrical resistance of iron, copper, aluminum, tin, etc. as it progresses.
  • the metal foil is left in an oxygen atmosphere of a certain concentration, and the electrical resistance of the metal foil is measured.
  • One that detects time can be considered.
  • the IC tag with a breakage detection function of the second invention is a break switch between the sensor amplifier 18 and the sensor 19. Since the switch 3 is inserted, when the inlet 5 is to be peeled off, the break switch 3 is broken, and the connection line between the sensor amplifier 18 and the sensor 19 is broken.
  • the reader Z writer 8 modulates a command signal, applies an AC voltage to the antenna coil 9, and transmits a command signal to the IC tag (step 101).
  • an induced electromagnetic field is generated, and an induced voltage is generated in the antenna coil 2 on the tag side.
  • the following operation is performed when a sufficient electric field strength is obtained and the induced voltage is stabilized each time the electric field is supplied from the outside at regular intervals.
  • the IC tag receives the command signal
  • the induced voltage is rectified by the rectifier circuit 11 to serve as an operation power source
  • the clock circuit 14 generates a clock for IC synchronization using the frequency (step 102).
  • the demodulation circuit 12 demodulates the command signal received from the reader / writer 8 while synchronizing with the clock (step 103).
  • the CPU 15 inputs the measured value of the sensor 19 converted into digital data by the AZD conversion 17 and amplified by the sensor amplifier 18 (step 104).
  • the measured value input by the CPU 15 is checked (step 105). If the measured value is at the full scale, the input operation is not performed and the processing is terminated without performing the input operation. As a result, since the history is not stored in the memory 16 in the subsequent steps 109 and 110, the history data thus far is frozen and stored. Therefore, it is impossible to illegally rewrite the recorded contents after removing the tag.
  • the CPU 15 reads the ID code from the memory 16 (step 106), and the modulation circuit 13 modulates the read ID code and the measurement value input in step 104, and outputs the ID code.
  • the measured value is added to the data and transmitted from the antenna coil 2 to the reader / writer 8 (step 107).
  • step 108 it is determined whether the measured value input by the CPU 15 is within the specified level. If the level is within the specified range, the measurement values input as normal data together with the clock data included in the command signal are stored in history in the memory 16 in chronological order (step 109).
  • the measured values input as abnormal data together with the clock data included in the command signal are stored in history in the memory 16 in chronological order (step 110).
  • the storage capacity of the history data can be reduced.
  • the measurement value of the sensor 19 is vibration data
  • a normal waveform pattern is set in advance, and the waveform pattern of the measured vibration data is always collated. If the waveform pattern does not match, the data is regarded as abnormal data.
  • FIGS. 11 and 12 show an internal plan view and a cross-sectional view of an IC tag with a write-once function embodying the third invention.
  • FIG. 13 shows an external plan view of the IC tag with the write-once function.
  • the figure shows an example of an electromagnetic induction type IC tag that mainly uses the frequency band below 150 kHz or 13.56 MHz!
  • an inlet 5 is formed by joining an antenna chip 2 and break switches 3 in a number corresponding to the number of channels to an IC chip 1 on a substrate 4 such as a PET film.
  • the figure shows an example of a three-channel IC tag! /, But any number of break switches 3 can be joined according to the number of channels.
  • the inlet 5 is coated with an adhesive a on the outer periphery of the upper surface of the substrate 4 and the top surface of the break switch 3 and is covered with a surface seal 6 on the upper surface. It is supported by the applied release paper 7.
  • the inlet 5 is peeled from the release paper 7 and attached to an article or the like.
  • the surface seal 6 forms a number of labels 61 corresponding to the break switches 3 by applying a punching force, and the break switches 3 are provided between the labels 61 and the substrate 4.
  • the breaking switch 3 has a structure that is broken when an external force exceeding a predetermined level is applied.
  • the bottom surface is fixed to the substrate 4 of the inlet 5, and the top surface is adhered to the back side of the label 61.
  • the breaking switch 3 that adheres the top surface to the back side of the label 61 is pulled upward and is reliably broken.
  • the breaking switch 3 is formed by forming a membrane 31 on the substrate 4 by using a thick film printing technique, and coating the membrane 31 with a packing 32 of a fragile material.
  • a liquid storage layer 33 is formed, into which the conductive ink liquid b is placed.
  • Electrodes 34 are arranged at both ends of the liquid storage layer 33, and are connected to the IC chip 1 via the lead wires 35.
  • the lead wire 35 connected to the IC chip 1 is disconnected.
  • the breaking switch 3 may be energized by connecting both ends of the liquid storage layer 33 with conductive thin wires.
  • the membrane 31 and the packing 32 may be formed of a metal foil such as aluminum and energized.
  • FIG. 14 shows a block diagram of an IC tag with a write-once function embodying the third invention.
  • the IC tag with the write-once function has a configuration in which the antenna coil 2 is connected to the antenna connection portion of the IC chip 1 and the break switch 3 is connected to the data input channel of the IC chip 1.
  • the IC chip 1 is composed of a rectifier circuit 11, a demodulation circuit 12, a modulation circuit 13, and a clock circuit 14, which are connected to the antenna coil 2, an analog circuit section, and a digital circuit section including a CPU 15 and a memory 16.
  • different banks of memory 16 are assigned to each data input channel on a one-to-one basis.
  • the memory 16 is managed in units of a bank having a certain capacity, and when an access request occurs, The target bank is selected, and a bank switch is performed to access only that bank.
  • the bank switch may be performed by either a hardware or software method.
  • the reader Z writer 8 modulates a command signal, applies an AC voltage to the antenna coil 9, and transmits a command signal to the IC tag (step 201).
  • an induced electromagnetic field is generated, and an induced voltage is generated in the antenna coil 2 on the tag side.
  • the following operations are performed each time a sufficient electric field strength is obtained and the induced voltage is stabilized each time an external force electric field is supplied.
  • the IC tag receives the command signal
  • the induced voltage is rectified by the rectifier circuit 11 to serve as an operation power supply
  • the clock circuit 14 generates a clock for IC synchronization using the frequency (step 202).
  • the demodulation circuit 12 demodulates the command signal received from the reader / writer 8 while synchronizing with the clock (step 203).
  • the CPU 15 analyzes the demodulated command signal (step 204).
  • the command signal is a write command
  • the CPU 15 enters a history data write operation, and when the command signal is a thalia command, enters a history data erase operation.
  • the CPU 15 selects a target data input channel, and performs input processing of the break switch 3 connected to the channel (step 205).
  • the input signal is checked (step 206). If the signal is high, it is determined that the label 61 has been peeled off and the writing operation is not performed, and the process is terminated.
  • the bank of the target memory 16 is selected, and the history data included in the command signal is written to the bank (step 207).
  • the response signal to which the ID code is added is modulated by the modulation circuit 13 and transmitted from the antenna coil 2 to the reader / writer 9 (step 208).
  • the CPU 15 selects the data input channels in order, and connects to all the channels. Then, input processing of the break switch 3 is performed (step 209).
  • the input signals are checked (step 210), and if all the input signals are at the high level, all the labels 61 are determined to have been peeled off and all the history data stored in the bank of the memory 16 is deleted (step 211). ).
  • the labels 61 are peeled off from the inlet 5 one by one at each stage of traceability. This prevents the writing of the corresponding address to the memory 16. This protects the history data at each stage of traceability, and this function makes it possible to control the write-once timing by peeling off the label 61. Become.
  • the write-once area of the memory 16 is made independent by a plurality of peeling detecting sections. This makes it possible to prevent the falsification of the history data at each stage of the traceability.
  • a memory 16 is provided with a rewritable area so that it can be used and used in a conventional manner.
  • the number of breakage detection units used by devising the adhesive and the wiring pattern of the label 61 can be controlled.
  • the first channel is placed on the outer periphery as a normal peel detection antenna, and the second and third channels are present, but the wiring is cut even if the label 61 is peeled.
  • a glue like this!
  • the memory 16 at the address corresponding to the second and third channels is rewritable.
  • each part of the label 61 having three channels is peelable.
  • FIG. 17 (c) shows that there is only one peelable part in the label 61 having three channels.
  • FIG. 18 shows a block diagram of a variable transmission cycle active type IC tag embodying the fourth invention.
  • the variable transmission cycle active type IC tag T is a receiver T2 connected to the receiving terminal of the antenna duplexer T1.
  • a frequency synthesizer ⁇ 3, a reception voltage measuring device ⁇ 4 It consists of.
  • the active period variable active type IC tag ⁇ ⁇ has the above configuration, and the receiver ⁇ 2 receives the probe radio wave transmitted by the reader ⁇ writer R via the antenna duplexer T1 and receives the probe radio wave by the variable frequency oscillator.
  • a local oscillation frequency obtained by electrically controlling a certain frequency synthesizer # 3 is synthesized to convert a probe radio wave into a predetermined frequency.
  • Different frequency channels are assigned to the probe radio for each reader / writer R, and when receiving, it is necessary to select the target reader / writer R frequency from among them. In this way, a plurality of reader / writers R are arranged at different gates so that the transmission cycle of the active IC tag can be individually controlled.
  • the reception voltage measuring device 4 measures the reception voltage of the probe radio wave and inputs the A / D converted reception voltage to the CPUT7.
  • the CPU T7 determines the ID transmission cycle in accordance with the received voltage, sets the time value of the determined transmission cycle, and starts the hardware or software timer T8.
  • the CPU T7 accesses the memory T9 at regular time intervals to read the ID, modulates the read ID with the modulator T5, and modulates the modulated ID with the transmitter T6 to control the antenna duplexer T1.
  • the frequency of the ID transmission radio wave is different from the frequency of the probe radio wave having a different frequency for each reader / writer R.
  • the reader / writer R can temporarily stop the probe radio wave and temporarily control the transmission cycle of the variable transmission cycle active type IC tag toward the gate.
  • the CPUT7 sets the time value set in advance in the timer # 8 and returns to the predetermined transmission cycle.
  • the reader / writer R verifies the validity of the received ID, and if OK, outputs a control signal for performing gate control and the like to the controller C.
  • a reference period for measuring the timing of rough gate control is prepared, and this is compared with the ID transmission period, and a control signal is output when they coincide.
  • the timing of the gate control can be made appropriate to ensure the gate control.
  • the active period IC tag T measures this reception voltage E and shortens the ID transmission period t in inverse proportion to the reception voltage E (set tl> t2> t3).
  • the ID transmission cycle t and the distance d are linearly proportional. Can be detected accurately. Therefore, the accuracy of the gate control is further improved.
  • FIG. 20 is a schematic diagram of a device for preventing unauthorized removal of an article with an IC tag according to the fifth invention. Show.
  • the fraudulent take-out prevention device arranges transmission antennas S2, S3 and reception antennas S4, S5 facing each other, with one of the gates S1 as the transmission side and the other as the reception side, and connects the transmitter S6 and the receiver S7 respectively.
  • a lamp S8 for displaying an alarm is installed above the gate S1, and the transmitter S6, the receiver S7, and the lamp S8 are integrally connected.
  • the transmitting antenna S2 transmits an ID reading signal to the IC tag S10 attached to the article S9 passing through the gate S1, and the receiving antenna S4 receives a response signal from the IC tag S10.
  • the ID read signal and the response signal are modulated by different modulation methods such as the ASK modulation method and the response signal by the FSK modulation method, so that the ID read signal and the response signal can be easily distinguished.
  • Transmitting antenna S3 transmits a test signal for detecting communication disturbance due to metal, hand, and the like, and receiving antenna S5 receives the test signal transmitted from transmitting antenna S3.
  • the test signal uses a carrier frequency different from the ID read signal. For example, if the carrier frequency of the ID read signal is 13.56 MHz, a different 2.45 GHz band is used.
  • the frequency band to be used is divided into a plurality of frequency channels, and communication is performed by switching the frequency of the carrier wave in a time-division manner.
  • the band of the carrier frequency to be used is widened to avoid a communication failure caused by radio wave interference.
  • the transmitting antennas S2 and S3 and the receiving antennas S4 and S5 are loop coil antennas in the electromagnetic induction type using the 13.56 MHz band, and are printed on a flat plate in the microwave type using the 2.45 GHz band. Microstrip antenna.
  • Transmitter S6 and receiver S7 each include a built-in antenna switching circuit (not shown) to switch between transmitting antennas S2 and S3 and receiving antennas S4 and S5, and a built-in frequency synthesizer (not shown) to transmit a plurality of frequencies.
  • the transmission and reception frequencies divided into channels are combined, and the transmission and reception frequencies are switched at regular time intervals.
  • a synchronization signal is transmitted from the transmitter S6 to the receiver S7 to synchronize transmission / reception timing.
  • FIG. 21 shows a flowchart of a process for preventing unauthorized removal of an article with an IC tag.
  • step 301 the transmitter S6 transmits an ID read signal at the carrier frequency f0 via the transmission antenna S2.
  • step 302 it is determined whether the receiver S7 has received a response signal from the IC tag S10 via the receiving antenna S4, and if so, the process returns to step 301 to transmit the ID read signal. repeat.
  • the transmitter S6 transmits the test signal in order through the transmitting antenna S3 at the carrier frequency fl to fn obtained by time division.
  • step 304 the receiver S7 determines whether or not the test signal has been received at all the carrier frequencies fl to fn via the receiving antenna S5, and if so, returns to step 301 and returns to step 301. The transmission of the read signal is repeated.
  • the lamp S8 is turned on to notify an alarm, and the processing is terminated.
  • FIG. 1 is a plan view of an IC tag with a replacement prevention function according to the first invention.
  • FIG. 2 is a sectional view of FIG. 1.
  • FIG. 3 is a plan view of a break switch.
  • FIG. 4 is a sectional view of FIG. 3.
  • FIG. 5 is a plan view of a break switch of a modification.
  • FIG. 6 is a block diagram of the IC tag with a replacement prevention function of the first invention.
  • FIG. 7 is a view showing a broken state of a breaking switch.
  • FIG. 8 is a view showing a fracture state of a fracture switch of a modification.
  • FIG. 9 is a block diagram of an IC tag with a damage detection function according to the second invention.
  • FIG. 10 is an operation flowchart of an IC tag with a damage detection function.
  • FIG. 11 is an internal plan view of the IC tag with a write-once function of the third invention.
  • FIG. 12 is a cross-sectional view of FIG.
  • FIG. 13 is an external plan view of FIG. 11.
  • FIG. 14 is a block diagram of an IC tag with a write-once function according to a third invention.
  • FIG. 15 is an operation flowchart of an IC tag with a write-once function.
  • Fig. 17 is a schematic diagram of an IC tag with a write-once function in which the number of breakage detection units is controlled.
  • FIG. 18 is a block diagram of a variable transmission cycle active type IC tag according to a fourth invention.
  • FIG. 19 is a diagram illustrating a change in a transmission cycle t according to a distance d.
  • FIG. 20 is a schematic diagram of the device for preventing unauthorized removal of an article with an IC tag according to the fifth invention.
  • FIG. 21 is a flowchart of a process for preventing unauthorized removal of an article with an IC tag.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Burglar Alarm Systems (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

L’objet est de permettre de lire une étiquette CI qui a été retirée et de faciliter la confirmation visuelle d’un abus. On forme une attache (5) en joignant, sur un substrat (4) comme un film PET, une bobine d’antenne (2) et un interrupteur à rupture (3) à une puce CI (1). L’interrupteur à rupture (3) est construit de façon à se rompre et couper un circuit lorsqu’une force extérieure supérieure à un niveau prédéterminé est appliquée à l'interrupteur. L’attache (5) est construite de telle manière qu’un agent adhésif (a) est appliqué à la périphérie externe de la surface supérieure du substrat (4) et à la surface supérieure de l’interrupteur à rupture (3), la surface supérieure du substrat est recouverte d'un joint superficiel (6), on applique l’agent adhésif (a) à toute la surface inférieure du substrat, et la surface inférieure est supportée par un papier détachable (7) qui est traité avec du silicium pour se détacher. L’attache (5) s’arrache du papier détachable (7) et se colle sur un article, etc.
PCT/JP2005/007860 2004-04-28 2005-04-26 Etiquette ci et dispositif de prevention d’abus utilisant une etiquette ci WO2005106782A1 (fr)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP2004132420A JP2005316628A (ja) 2004-04-28 2004-04-28 すり替え防止機能付きｉｃタグ
JP2004-132420 2004-04-28
JP2004137251A JP2005321853A (ja) 2004-05-06 2004-05-06 発信周期可変型アクティブタグ
JP2004-137251 2004-05-06
JP2004-140829 2004-05-11
JP2004140829A JP2005322119A (ja) 2004-05-11 2004-05-11 Ｉｃタグ付き物品の不正持ち出し防止装置
JP2004-324985 2004-11-09
JP2004324985A JP2006134223A (ja) 2004-11-09 2004-11-09 破損検知機能付きｉｃタグ
JP2004-344726 2004-11-29
JP2004344726A JP2006155237A (ja) 2004-11-29 2004-11-29 ライトワンス機能付きｉｃタグ

Publications (1)

Publication Number Publication Date
WO2005106782A1 true WO2005106782A1 (fr) 2005-11-10

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Application Number Title Priority Date Filing Date
PCT/JP2005/007860 WO2005106782A1 (fr) 2004-04-28 2005-04-26 Etiquette ci et dispositif de prevention d’abus utilisant une etiquette ci

Country Status (1)

Country Link
WO (1) WO2005106782A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007179375A (ja) * 2005-12-28 2007-07-12 Pfu Ltd データ改竄防止方法及びデータ改竄防止システム
WO2012028280A3 (fr) * 2010-08-30 2012-04-26 Tagstar Systems Gmbh Étiquette d'identification par radiofréquence antivol
WO2020069547A1 (fr) * 2018-10-04 2020-04-09 Riddle & Code Gmbh Marquage électronique

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06156691A (ja) * 1992-11-25 1994-06-03 Nippondenso Co Ltd 電子荷札
JPH10228523A (ja) * 1997-02-17 1998-08-25 Glory Ltd 不正検出機能を備えた非接触タグ読出装置
JP2000090224A (ja) * 1998-09-14 2000-03-31 Toshiba Corp 情報処理媒体
JP2000205892A (ja) * 1999-01-11 2000-07-28 Internatl Business Mach Corp <Ibm> 商品の履歴の諸態様を安全に判定するための方法および装置
JP2002060012A (ja) * 2000-08-09 2002-02-26 Nippon Signal Co Ltd:The 物品輸送用伝票
JP2002525640A (ja) * 1998-09-28 2002-08-13 タグテック リミテッド Ｒｆｉｄ検出システム
US20020188259A1 (en) * 2001-05-21 2002-12-12 Scott Laboratories, Inc. Smart supplies, components and capital equipment
JP2003111956A (ja) * 2001-10-04 2003-04-15 Lintec Corp 開封検知器及び開封検知方法
JP2003256784A (ja) * 2002-02-28 2003-09-12 Toshiba Corp 非接触型ｉｃカードリーダライタ装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06156691A (ja) * 1992-11-25 1994-06-03 Nippondenso Co Ltd 電子荷札
JPH10228523A (ja) * 1997-02-17 1998-08-25 Glory Ltd 不正検出機能を備えた非接触タグ読出装置
JP2000090224A (ja) * 1998-09-14 2000-03-31 Toshiba Corp 情報処理媒体
JP2002525640A (ja) * 1998-09-28 2002-08-13 タグテック リミテッド Ｒｆｉｄ検出システム
JP2000205892A (ja) * 1999-01-11 2000-07-28 Internatl Business Mach Corp <Ibm> 商品の履歴の諸態様を安全に判定するための方法および装置
JP2002060012A (ja) * 2000-08-09 2002-02-26 Nippon Signal Co Ltd:The 物品輸送用伝票
US20020188259A1 (en) * 2001-05-21 2002-12-12 Scott Laboratories, Inc. Smart supplies, components and capital equipment
JP2003111956A (ja) * 2001-10-04 2003-04-15 Lintec Corp 開封検知器及び開封検知方法
JP2003256784A (ja) * 2002-02-28 2003-09-12 Toshiba Corp 非接触型ｉｃカードリーダライタ装置

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007179375A (ja) * 2005-12-28 2007-07-12 Pfu Ltd データ改竄防止方法及びデータ改竄防止システム
JP4763453B2 (ja) * 2005-12-28 2011-08-31 株式会社Ｐｆｕ データ改竄防止方法及びデータ改竄防止システム
WO2012028280A3 (fr) * 2010-08-30 2012-04-26 Tagstar Systems Gmbh Étiquette d'identification par radiofréquence antivol
US8991709B2 (en) 2010-08-30 2015-03-31 Tagstar Systems Gmbh Tamper-proof RFID label
WO2020069547A1 (fr) * 2018-10-04 2020-04-09 Riddle & Code Gmbh Marquage électronique
WO2020069541A1 (fr) * 2018-10-04 2020-04-09 Riddle & Code Gmbh Marquage électronique
CN112534442A (zh) * 2018-10-04 2021-03-19 里德尔代码有限公司 电子标签
JP2021524117A (ja) * 2018-10-04 2021-09-09 リドル アンド コード ゲーエムベーハー 電子マーキング
JP6996826B2 (ja) 2018-10-04 2022-01-17 リドル アンド コード ゲーエムベーハー 電子マーキング
CN112534442B (zh) * 2018-10-04 2022-03-29 里德尔代码有限公司 电子标签
US11809940B2 (en) 2018-10-04 2023-11-07 Riddle & Code Gmbh Electronic marking

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