WO2010146726A1 - 無線icタグ、該無線icタグを用いたコンクリート構造物品質管理システム - Google Patents
無線icタグ、該無線icタグを用いたコンクリート構造物品質管理システム Download PDFInfo
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- WO2010146726A1 WO2010146726A1 PCT/JP2009/067684 JP2009067684W WO2010146726A1 WO 2010146726 A1 WO2010146726 A1 WO 2010146726A1 JP 2009067684 W JP2009067684 W JP 2009067684W WO 2010146726 A1 WO2010146726 A1 WO 2010146726A1
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- wireless
- tag
- sensor
- ferroelectric memory
- concrete structure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
- G01B7/20—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance formed by printed-circuit technique
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D9/00—Recording measured values
- G01D9/005—Solid-state data loggers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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- 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
- G06K19/0716—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 at least one of the integrated circuit chips comprising a sensor or an interface to a sensor
- G06K19/0717—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 at least one of the integrated circuit chips comprising a sensor or an interface to a sensor the sensor being capable of sensing environmental conditions such as temperature history or pressure
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- 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
Definitions
- the present invention relates to a wireless IC tag and a quality control system for a concrete structure using the wireless IC tag, and in particular, has a sensoring function of various values related to a concrete structure and stores a large capacity. And a system using the wireless IC tag.
- This nonvolatile memory device includes a power supply unit that receives an external radio wave and resonates with it to generate a current, an antenna unit for wireless communication, and a control unit that controls them (Patent Document 1). .
- the non-volatile memory device disclosed in Patent Document 1 is compared with an EEPROM or the like conventionally used for an IC tag, the number of rewrites, a low write voltage, no power supply, long service life, cell There are advantages in various aspects such as small size.
- one IC tag has a storage capacity of about 8 Kbytes, and functions as a storage device as well as a CPU as an arithmetic device.
- This passive type wireless IC tag also called an RFID tag, uses a magnetic field generated around an antenna by a radio wave applied to a coil antenna as a transmission medium, and communicates with the outside by induced electromotive force induced by the antenna. Is.
- the concrete structure has been subjected to temperature cracking in order to prevent damage caused by handling of the product after demolding of the concrete, or to confirm that the cement product has the desired strength at the time of casting. It is necessary to control the temperature for suppression. Therefore, it is necessary to monitor the temperature change with time in the concrete structure.
- the cement product constituting the concrete structure has a strong alkalinity of Ph12 to 13, and due to this strong alkalinity, a dense oxide film ( ⁇ ) having a thickness of about 3 nm called a passive film is formed on the surface of the reinforcing steel in the reinforced concrete.
- Fe203 ⁇ nH20 is made and protected from oxidation.
- the passive film is destroyed and the reinforcing bar starts to corrode. Therefore, it is necessary to monitor the change with time of the hydrogen ion index in the concrete structure.
- Patent Document 2 An embedded RFID module
- Patent Document 3 A seismic sensor
- Patent Document 3 A seismic sensor
- these structure management systems are equipped with only sensors that measure a specific value.
- a wireless IC tag of the present invention is a wireless IC tag attached or embedded in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, A ferroelectric memory using a ferroelectric having an antenna for receiving radio waves from the outside and resonating with the power to generate a current and an antenna for wireless communication in a predetermined frequency band, and the ferroelectric memory And temperature data of the structure measured by the temperature sensor is stored in the ferroelectric memory.
- a wireless IC tag attached to or embedded in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, which receives radio waves from the outside and resonates with it to generate current.
- a ferroelectric memory using a ferroelectric substance having an antenna part for wireless communication with a power source part for generating a predetermined frequency band, and a Ph sensor electrically connected to the ferroelectric memory, Hydrogen ion exponent data of the structure measured by the Ph sensor is stored in the ferroelectric memory.
- a wireless IC tag embedded in or embedded in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, which receives radio waves from the outside and resonates with it.
- a ferroelectric memory using a ferroelectric having a power supply that generates current and an antenna for wireless communication in a predetermined frequency band, and a strain sensor electrically connected to the ferroelectric memory. And strain data of the structure measured by the strain sensor is stored in the ferroelectric memory.
- a wireless IC tag attached to or embedded in a concrete structure that can write and read data by wireless communication with a writing / reading device. It receives external radio waves and resonates with them to generate current.
- a ferroelectric memory using a ferroelectric substance having an antenna part for wireless communication with a power source part to perform a predetermined frequency band, and a temperature sensor, a Ph sensor electrically connected to the ferroelectric memory, There are at least two types of strain sensors, and temperature data of the structure measured by the temperature sensor, hydrogen ion index data of the structure measured by the Ph sensor, and the structure measured by the strain sensor It is characterized in that at least one of the distortion data of the object is stored in the ferroelectric memory.
- the wireless IC tag is a ferroelectric memory using a ferroelectric having an antenna unit for wirelessly communicating in a predetermined frequency band with a power source unit that receives a radio wave from the outside and generates a current by resonating with the radio wave.
- a UHF band communication antenna chip that receives radio waves in the UHF band are connected to each other and mounted on a substrate, and communication in a long frequency band exceeding the UHF band is performed by the antenna portion of the ferroelectric memory, and data is transmitted to the ferroelectric memory. And storing the data in a body memory, performing UHF band communication with the antenna chip for UHF band communication, and storing the data in the ferroelectric memory.
- the wireless IC tag is a ferroelectric memory using a ferroelectric having an antenna unit for wirelessly communicating in a predetermined frequency band with a power source unit that receives a radio wave from the outside and generates a current by resonating with the radio wave.
- a substrate on which is mounted is covered with an insulating material.
- the temperature sensor is any one of a resistance temperature detector, a thermocouple, and a thermistor, and an electrical signal detected by the temperature sensor is stored in the ferroelectric memory.
- the Ph sensor makes contact with the measurement site of the concrete structure on the film disposed on the sensor, so that the reactivity at the measurement site, the amount of acid / alkali attached, the acid
- a semiconductor imaging sensor that detects the amount of alkali or the like, or a glass electrode sensor that has a glass electrode and a reference electrode and detects a potential difference between the electrodes, and the electrical signal detected by the Ph sensor is stored in the ferroelectric memory. It is memorized.
- the strain sensor is a displacement sensor for detecting a change in relative position of at least two points of the concrete structure, and an electrical signal detected by the strain sensor is stored in the ferroelectric memory.
- the senor of the wireless IC tag is mounted on a substrate.
- the wireless IC tag is characterized in that it is electrically connected to a battery that is charged in a non-contact manner from a charging device.
- the battery is characterized in that it is a battery that is charged in a non-contact manner by radio waves in a predetermined frequency band from a charging device.
- the battery is characterized by being mounted on a substrate.
- a charging device for charging a battery is provided in a writing / reading device.
- the sensor of the wireless IC tag is driven by being supplied with power from a battery that is charged in a non-contact manner from a charging device.
- the wireless IC tag is characterized in that it is electrically connected to a power generation mechanism that generates power by vibration, heat, or radio waves.
- the power generation mechanism is mounted on a substrate.
- the sensor of the wireless IC tag is driven by being supplied with power from a power generation mechanism that generates power by vibration, heat, or radio waves.
- a concrete structure quality control system using a wireless IC tag is a wireless IC embedded in or placed in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device.
- a temperature sensor electrically connected to the ferroelectric memory, and a control unit mounted on the ferroelectric memory controls the temperature sensor; and the temperature sensor is a temperature of the concrete structure.
- means for storing the measured temperature data of the structure in the ferroelectric memory is a wireless IC embedded in or placed in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device.
- a wireless IC tag that is embedded in or placed in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, which receives radio waves from the outside and resonates with it.
- a ferroelectric memory using a ferroelectric material having a power supply unit that generates current and an antenna unit for wireless communication in a predetermined frequency band, and a Ph sensor electrically connected to the ferroelectric memory.
- the control unit mounted on the ferroelectric memory controls the Ph sensor, the Ph sensor measures the hydrogen ion index of the concrete structure, and the measured hydrogen of the structure.
- a means for storing ion exponent data in the ferroelectric memory is provided.
- a wireless IC tag that is embedded in or placed in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, which receives radio waves from the outside and resonates with it.
- a ferroelectric memory using a ferroelectric having a power supply that generates current and an antenna for wireless communication in a predetermined frequency band, and a strain sensor electrically connected to the ferroelectric memory.
- a control unit mounted on the ferroelectric memory for controlling the strain sensor, the strain sensor for measuring the strain of the concrete structure, and the measured strain data of the structure. It has means for storing in the ferroelectric memory.
- a wireless IC tag that is embedded in or placed in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device. It receives radio waves from the outside and resonates with it.
- Ferroelectric memory using a ferroelectric material having a power supply unit for generating current and an antenna unit for wireless communication in a predetermined frequency band, and a temperature sensor and a Ph sensor electrically connected to the ferroelectric memory
- a wireless IC tag attached to or embedded in a concrete structure that can write and read data by wireless communication with a writing / reading device. It receives external radio waves and resonates with them to generate current.
- Ferroelectric memory using a ferroelectric material having an antenna unit for wireless communication with a power source unit that performs a predetermined frequency band, and a temperature sensor, a Ph sensor, and a strain sensor electrically connected to the ferroelectric memory And a means for storing the detected data in the ferroelectric memory when any of the sensors detects a change amount.
- the wireless IC tag is electrically connected to a battery that is charged in a contactless manner from a charging device, and the sensor of the wireless IC tag is driven by being supplied with power from the battery.
- the wireless IC tag is electrically connected to a power generation mechanism that generates power by vibration, heat, or radio waves, and the sensor of the wireless IC tag is driven by being supplied with power from the power generation mechanism.
- the wireless IC tag of the present invention is a wireless IC tag attached to or embedded in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, A ferroelectric memory using a ferroelectric having an antenna unit for receiving radio waves from and resonating with the power source unit and generating radio current in a predetermined frequency band; and the ferroelectric memory A wireless IC tag with a temperature sensor capable of wirelessly communicating data by storing temperature data of the structure measured by the temperature sensor in the ferroelectric memory.
- the temperature data measured can be stored at the same time, making it easy and quick to estimate the strength of the concrete using the temperature and accumulated temperature by the on-site personnel and the manager after placing for each concrete actually used. Can contribute to improving the safety of concrete structures.
- a wireless IC tag attached to or embedded in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, which receives radio waves from the outside and resonates with it to generate current.
- a ferroelectric memory using a ferroelectric substance having an antenna part for wireless communication with a power source part for generating a predetermined frequency band, and a Ph sensor electrically connected to the ferroelectric memory, By storing the hydrogen ion index data of the structure measured by the Ph sensor in the ferroelectric memory, a wireless IC tag with a Ph sensor capable of wireless data communication is used.
- Ion index measurement and extraction of hydrogen ion index data are easy, and the large capacity memory of this wireless IC tag
- the stored hydrogen ion index data can be stored, and the concrete hydrogen ion index can be measured for each concrete actually used. This makes it possible to easily and quickly estimate the neutralization of concrete using, which contributes to improving the safety of concrete structures.
- a wireless IC tag embedded in or embedded in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, which receives radio waves from the outside and resonates with it.
- a ferroelectric memory using a ferroelectric having a power supply that generates current and an antenna for wireless communication in a predetermined frequency band, and a strain sensor electrically connected to the ferroelectric memory. And storing the strain data of the structure measured by the strain sensor in the ferroelectric memory, so that a wireless IC tag with a strain sensor capable of wireless data communication is used. It is easy to measure strain and retrieve strain data, and the hydrogen ion finger measured at regular intervals in the large-capacity memory of this wireless IC tag. Data can be stored, and the strain of concrete can be measured for each concrete actually used. It is possible to easily and quickly find cracks in concrete structures due to external factors such as earthquakes, and contribute to improving the safety of concrete structures.
- a wireless IC tag attached to or embedded in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, which receives radio waves from the outside and resonates with it to generate current.
- the sensor has at least two types of sensors, strain sensors, temperature data of the structure measured by the temperature sensor, hydrogen ion index data of the structure measured by the Ph sensor, and measured by the strain sensor
- By storing at least one of the strain data of the structure in the ferroelectric memory Since it is possible to provide a wireless IC tag including a composite sensor that can measure and store the temperature, hydrogen ion index, and strain of a structure with a single medium, in addition to the above effects,
- the concrete structure can be measured comprehensively, and the on-site staff and post-installation manager can acquire multiple data with one writing / reading device, making
- the wireless IC tag is a ferroelectric memory using a ferroelectric having an antenna unit for wirelessly communicating in a predetermined frequency band with a power source unit that receives a radio wave from the outside and generates a current by resonating with the radio wave.
- a UHF band communication antenna chip that receives radio waves in the UHF band are connected to each other and mounted on a substrate, and communication in a long frequency band exceeding the UHF band is performed by the antenna portion of the ferroelectric memory, and data is transmitted to the ferroelectric memory.
- the frequency band used by conventional wireless IC tags such as the LF band is stored in the body memory
- UHF band communication is performed by the antenna chip for UHF band communication
- the data is stored in the ferroelectric memory.
- UHF band communication having a wide communication range can be performed, and even in a large-scale concrete structure, it is easy to use a writing / reading device. It can read and write data to the speed.
- the wireless IC tag is a ferroelectric memory using a ferroelectric having an antenna unit for wirelessly communicating in a predetermined frequency band with a power source unit that receives a radio wave from the outside and generates a current by resonating with the radio wave.
- the temperature sensor is any one of a resistance temperature detector, a thermocouple, and a thermistor, and an electrical signal detected by the temperature sensor is stored in the ferroelectric memory, so that the temperature can be accurately measured, and wireless
- a small temperature sensor that can be connected to the IC tag or provided on the same substrate can be formed, and a relatively small wireless IC tag for sensoring can be provided.
- the Ph sensor makes contact with the measurement site of the concrete structure on the film disposed on the sensor, so that the reactivity at the measurement site, the amount of acid / alkali attached, the acid
- a semiconductor imaging sensor that detects the amount of alkali or the like, or a glass electrode sensor that has a glass electrode and a reference electrode and detects a potential difference between the electrodes, and the electrical signal detected by the Ph sensor is stored in the ferroelectric memory.
- the strain sensor is a displacement sensor that detects the amount of change in the relative position of at least two points of the concrete structure, and the electrical signal detected by the strain sensor is stored in the ferroelectric memory, so that the concrete structure can be accurately detected.
- a small strain sensor that can be connected to the wireless IC tag or provided on the same substrate can be configured, and a relatively small sensor ring device can be provided.
- the quality of the concrete structure can be controlled with a small and thin sensor device.
- the wireless IC tag is electrically connected to a battery that is charged in a non-contact manner from a charging device, so that the wireless IC tag is embedded in a concrete structure or in cement products such as ready-mixed concrete. Even when the wireless IC tag is located at a place where electric power cannot be supplied to the wireless IC tag by wire as in the case where the wireless IC tag is mixed, it can be charged wirelessly from the outside. Therefore, a wireless rechargeable wireless IC tag can be provided.
- a battery is a battery that is charged in a non-contact manner by radio waves of a predetermined frequency band from a charging device, so that it can be charged by radio waves from a wireless communication device or other transmitting device. For example, charging using electromagnetic induction Compared to the above, there is no fear of heat generation, and non-contact charging can be performed safely.
- the battery is mounted on a substrate, so that it is possible to provide a small-sized wireless IC tag with a sensor that can be modularized and charged.
- the charging device for charging the battery can be charged to the wireless IC tag by using data writing to or reading from the wireless IC tag by being provided in the writing / reading device.
- the sensor that the wireless IC tag has can be powered easily by supplying power from a battery that is charged in a non-contact manner from the charging device, thereby supplying power to the temperature sensor, the Ph sensor, and the strain sensor located in the concrete structure. These sensors can be driven without being connected to an external power source.
- the wireless IC tag is electrically connected to a power generation mechanism that generates power by vibration, heat, or radio waves, so that the wireless IC tag is embedded in a concrete structure or cement products such as ready-mixed concrete. Even if the wireless IC tag is located in a place where electricity cannot be supplied by wire to the wireless IC tag as in the case of mixing, the wireless IC tag self-generates due to factors such as vibration, heat, radio waves, etc. It is possible to store the electric power generated according to the conditions. Therefore, a self-power generation type wireless IC tag can be provided.
- the power generation mechanism can provide a small-sized sensor-equipped wireless IC tag capable of generating power modularized by being mounted on a substrate.
- the sensor of the wireless IC tag can easily supply power to the temperature sensor, Ph sensor, and strain sensor located in the concrete structure by being powered and driven by a power generation mechanism that generates power by vibration, heat, or radio waves. These sensors can be driven without being connected to an external power source.
- a wireless IC tag that is embedded in or placed in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device. It receives radio waves from the outside and resonates with it.
- a ferroelectric memory using a ferroelectric material having a power supply unit for generating current and an antenna unit for wireless communication in a predetermined frequency band; and a temperature sensor electrically connected to the ferroelectric memory. Means for controlling a temperature sensor by a control unit mounted on the ferroelectric memory; means for measuring the temperature of the concrete structure; and temperature data of the measured structure.
- a wireless IC tag that is embedded in or placed in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, which receives radio waves from the outside and resonates with it.
- a ferroelectric memory using a ferroelectric material having a power supply unit that generates current and an antenna unit for wireless communication in a predetermined frequency band, and a Ph sensor electrically connected to the ferroelectric memory.
- the control unit mounted on the ferroelectric memory controls the Ph sensor, the Ph sensor measures the hydrogen ion index of the concrete structure, and the measured hydrogen of the structure.
- a wireless IC tag with a Ph sensor capable of wireless data communication by having means for storing ion index data in the ferroelectric memory Therefore, it is easy to measure the hydrogen ion index inside the concrete and take out the hydrogen ion index data, and to store the hydrogen ion index data measured at regular intervals in the large-capacity memory of this wireless IC tag. It is possible to measure the hydrogen ion index of concrete for each concrete actually used, so it is easy for site managers and post-placement managers to estimate the neutralization of concrete using the hydrogen ion index data. It is possible to provide a concrete structure management system that can be performed quickly and contributes to improving the safety of the concrete structure.
- a wireless IC tag that is embedded in or placed in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device, which receives radio waves from the outside and resonates with it.
- a ferroelectric memory using a ferroelectric having a power supply that generates current and an antenna for wireless communication in a predetermined frequency band, and a strain sensor electrically connected to the ferroelectric memory.
- a control unit mounted on the ferroelectric memory for controlling the strain sensor, the strain sensor for measuring the strain of the concrete structure, and the measured strain data of the structure.
- a wireless IC tag with a strain sensor capable of wireless data communication is used by storing in the ferroelectric memory, a concrete structure
- the strain data can be easily measured and the strain data can be taken out, and the strain data measured at regular intervals can be stored in the large-capacity memory of this wireless IC tag. It is easy to quickly detect the deterioration of concrete structures and cracks in concrete structures due to external factors such as earthquakes by using the strain data.
- the concrete structure management system which can be performed and contributes to the improvement of the safety
- a wireless IC tag that is embedded in or placed in a concrete structure capable of writing / reading data by wireless communication with a writing / reading device. It receives radio waves from the outside and resonates with it.
- Ferroelectric memory using a ferroelectric material having a power supply unit for generating current and an antenna unit for wireless communication in a predetermined frequency band, and a temperature sensor and a Ph sensor electrically connected to the ferroelectric memory
- a means having at least two types of strain sensors and a control unit mounted on the ferroelectric memory for controlling each sensor; and a means for each sensor to measure data of the concrete structure; And having means for storing the measured data of the concrete structure in the ferroelectric memory,
- a wireless IC tag attached to or embedded in a concrete structure that can write and read data by wireless communication with a writing / reading device. It receives external radio waves and resonates with them to generate current.
- Ferroelectric memory using a ferroelectric material having an antenna unit for wireless communication with a power source unit that performs a predetermined frequency band, and a temperature sensor, a Ph sensor, and a strain sensor electrically connected to the ferroelectric memory
- the wireless IC tag is electrically connected to a battery that is charged in a non-contact manner from a charging device, and the sensor of the wireless IC tag is driven by being powered by the battery, so that each sensor is wired. Electric power is supplied regardless of the connected external power source.
- the wireless IC tag is electrically connected to a power generation mechanism that generates power by vibration, heat, or radio waves, and the sensor included in the wireless IC tag is driven by being supplied with power from the power generation mechanism. Electric power is supplied regardless of an external power source connected by wire.
- FIG. 1 is a schematic perspective view of a wireless IC tag according to a first embodiment of the present invention.
- FIG. 2 is a schematic perspective view of a Ph sensor used in the wireless IC tag shown in FIG. 1.
- the schematic diagram which shows the example of the management system using the radio
- FIG. 9 is a schematic diagram illustrating an example of a management system using the wireless IC tag illustrated in FIG. 8.
- FIG. 1 is a schematic perspective view of the wireless IC tag according to the first embodiment of the present invention
- FIG. 2 is a schematic perspective view of a temperature sensor used in the wireless IC tag shown in FIG. 1
- FIG. It is a typical perspective view of the Ph sensor used for the wireless IC tag shown in FIG.
- FIG. 4 is a schematic perspective view of the wireless IC tag according to the second embodiment of the present invention
- FIG. 5 is a sectional view of the wireless IC tag shown in FIG. 4 covered with an insulating material
- FIG. FIG. 7 is a schematic view showing an example of a management system using the wireless IC tag of the invention
- FIG. 7 is a perspective view showing a state where the wireless IC tag of the invention is embedded in a concrete structure.
- FIG. 8 is a schematic perspective view of the wireless IC tag according to the third embodiment of the present invention.
- FIG. 9 is a schematic diagram showing an example of a management system using the wireless IC tag shown in FIG.
- FIG. 11 is a schematic perspective view of a wireless IC tag according to the fourth embodiment of the present invention
- FIG. 11 is a schematic perspective view showing the fifth embodiment of the present invention
- FIG. 12 is a sixth perspective view of the present invention. It is a typical perspective view which shows this embodiment.
- a wireless IC tag 1 of the present invention showing a first embodiment of the present invention is a storage device capable of writing and reading data, also called an RFID tag, and as shown in FIG. 1, as a memory element for an IC tag.
- a FeRAM chip 3 called a ferroelectric memory using a ferroelectric material is mounted on a substrate 2 made of a metal plate, a ceramic plate or the like, and the FeRAM chip 3 and various sensors are connected to each other.
- This is a wireless IC tag for use in a management system.
- the wireless IC tag 1 is embedded or attached to the concrete structure 11 and measures various data of the concrete structure 11, stores the measurement data, and writes / reads data as shown in FIG. Data is written to and read from a reader / writer 9 serving as a reading device, and reading is performed wirelessly.
- the type of FeRAM constituting the FeRAM chip 3 of the wireless IC tag 1 may be any type, and may be either a capacitor type or a transistor type.
- a passive type FeRAM that rectifies radio waves for data access from outside without using a power source and uses it as a power source.
- the FeRAM chip 3 includes a FeRAM that is a nonvolatile memory using a ferroelectric, a power supply unit that receives electric waves from the outside instead of incorporating a battery for driving, and generates a current by resonating with the radio wave, A film-like antenna unit for wireless communication and a control unit for controlling the FeRAM chip 3 and a sensor to be described later are mounted.
- the FeRAM constituting the FeRAM chip 3 has a number of rewrites of about 10 to the 5th power of the EEPROM, whereas FeRAM has a power of 10 to the 13th power. Has excellent performance and more than times.
- the writing voltage is 12V in the conventional EEPROM, whereas FeRAM can be written at a very low voltage of DC1.1V to 3V, and externally without incorporating a battery in the wireless IC tag.
- a passive type equipped with a power supply unit that resonates with the radio wave and generates power is sufficient, and has a writing speed 5000 times that of an EEPROM used in a conventional IC tag. Data storage period is as long as 10 years or more. Further, even in the case of rewrite access, most of the conventional EEPROM and flash memory are written in units of blocks, whereas FeRAM has an advantage that data can be written randomly in units of words.
- the control unit can make additional settings so that the information once written can not be falsified, but it can also be set so that it cannot be overwritten, and data can be written and read using an encrypted protocol. Is good. Therefore, in a memory capacity of about 8 KB, various data can be written / read by wireless communication with the reader / writer 9 as a writing / reading device as shown in FIG.
- the frequency band in which the FeRAM chip 3 can wirelessly communicate can be freely set and can be used from the LF band to the UHF band.
- the antenna unit can stably communicate with the ground wave and has directivity. It is suitable to set to LF band communication that is weak, relatively less susceptible to water, dust, and metal, and capable of highly reliable data communication. It may be set for frequency band communication of VHF band, HF band, and MF band.
- a management flag that can be read by the reader / writer 9 is stored in advance in the FeRAM chip 3 of the wireless IC tag 1 or at the time of writing, and this management flag is set when the reader / writer 9 writes / reads information. By reading, it is possible to identify the wireless IC tag 1 constituting a predetermined management system. If necessary, the wireless IC tag 1 is equipped with an anti-collision function, so that a situation in which communication is not possible due to interference even when a plurality of wireless IC tags 1 are located in the vicinity can be prevented.
- the wireless IC tag 1 is provided with a temperature sensor 4 that is connected to the FeRAM chip 3 by a wiring 21 so that the detection part of the temperature sensor can contact the concrete structure 11 and measure the temperature of the concrete structure 11. It has become.
- the temperature sensor 4 is, for example, one of a temperature sensor, a thermocouple, and a thermistor, and is preferably small enough to be mounted on the substrate 2.
- the resistance temperature detector is a temperature sensor that utilizes the fact that the electrical resistivity of metal changes in proportion to the temperature.
- a thermocouple joins two kinds of metals, such as platinum, rhenium, tungsten, silver, and gold, which have different thermopowers. When these two junctions are at different temperatures, current flows in a certain direction, and thermoelectromotive force is generated.
- It is a temperature sensor that uses the Seebeck effect that occurs and is often used near normal temperatures, but it can also be used in high-temperature and low-temperature regions, and it is embedded in concrete because it has heat resistance, acid resistance, alkali resistance, etc. It is excellent as a sensor and can be mounted on the substrate 2 by using a foil thermocouple.
- the thermistor is a temperature sensor that utilizes a change in the resistance of a resistor whose electrical resistance changes greatly according to a temperature change, and can be used from -50 ° C to about 350 ° C, and is excellent as a sensor embedded in concrete.
- Fig. 2 shows an example of a temperature sensor 4 using a thermistor.
- the surface mount type chip thermistor 41 is disposed on the substrate 2 so as to be in contact with the internal electrode 42, and has a configuration in which the periphery thereof is covered with plating layers 43 and 44 and the upper portion is covered with a protective film 45.
- the temperature is measured using the principle that the resistance increases with increasing or decreases with increasing temperature.
- This temperature sensor 4 measures the concrete temperature of the concrete structure 11 at a predetermined time interval by reading a measurement signal from the control unit of the FeRAM chip 3, at the time of reading by the reader / writer 9 or at all times, and is output as an electric signal. Temperature data is stored in the memory of the FeRAM chip 3.
- the temperature sensor 4 is mounted on the substrate 2, but it is not always necessary to mount it on the substrate 2, and it is only necessary that the FeRAM chip 3 can be energized. Further, as shown in FIG. 7, an external power supply 12 may be used as the power supply for the temperature sensor 4. Moreover, the kind of temperature sensor is not restricted to what was mentioned above.
- the wireless IC tag 1 is provided with a Ph sensor 5 connected to the FeRAM chip 3 by wiring 22, and the detection part of the Ph sensor comes into contact with the concrete structure 11 and hydrogen ions of the concrete structure 11 are arranged. The index can be measured.
- the Ph sensor 5 is formed by, for example, forming a thin gel film on the imaging sensor and bringing the surface of the measurement site of the concrete structure into contact with the gel film.
- FIG. 3 shows an example of the Ph sensor 5 using a sheet-type composite glass electrode.
- the detection part of the surface-mount type sheet-type composite glass electrode sensor has a Ph-responsive glass electrode 51, a reference electrode 52, and a liquid junction 53, and detects a potential difference between the glass electrode and the reference electrode to detect a hydrogen ion index. Measure.
- An imaging sensor using a semiconductor is suitable for use after the concrete structure is cured.
- the Ph sensor 5 measures the hydrogen ion index of the concrete of the concrete structure 11 at a predetermined time interval by reading a measurement signal output from the control unit of the FeRAM chip 3, at the time of reading by the reader / writer 9, or at all times as an electric signal.
- the output hydrogen ion index data is stored in the memory of the FeRAM chip 3.
- the Ph sensor 5 is mounted on the substrate 2.
- the Ph sensor 5 is not necessarily mounted on the substrate 2, and may be wired in a state in which the FeRAM chip 3 can be energized.
- an external power supply 12 may be used as the power supply of the Ph sensor 5.
- the kind of Ph sensor is not restricted to what was mentioned above.
- the wireless IC tag 1 is provided with a strain sensor 6 that is connected to the FeRAM chip 3 by a wiring 23 so that the detection unit of the strain sensor can measure the strain of the concrete structure 11.
- This strain sensor is a displacement sensor that detects the amount of change in the relative position of at least two points of the concrete structure, and is preferably small enough to be mounted on the substrate 2.
- the displacement sensor is a strain gauge that uses a bridge circuit that is arranged by connecting at least two points in the XY direction of the concrete structure in order to detect changes in the position, displacement, etc. of at least two points of the concrete structure.
- strain sensors using electromagnetic techniques, volumetric strain gauges, etc.
- the distortion of the entire concrete structure may be measured by comprehensively detecting the position change of the strain sensors of some wireless IC tags.
- This strain sensor measures the amount of change in strain of the concrete structure 11 at a predetermined time interval by the measurement signal output from the control unit of the FeRAM chip 3, or when the reader / writer 9 reads, or outputs it as an electrical signal.
- the strain data to be processed is stored in the memory of the FeRAM chip 3.
- the strain sensor 5 is mounted on the substrate 2, but it is not always necessary to mount it on the substrate 2, and it is only necessary that the FeRAM chip 3 can be energized.
- an external power source 12 may be used as the power source of the strain sensor 5.
- the type of strain sensor is not limited to the above.
- the temperature sensor 4, the Ph sensor 5, and the strain sensor 6 are connected to one FeRAM chip 3 and mounted on one substrate 2, and the temperature of the concrete structure 11, the hydrogen ion index
- the sensor provided in the wireless IC tag may be any one sensor or two sensors.
- a wireless IC tag 7 of the present invention showing a second embodiment of the present invention is a storage device capable of writing and reading data, also called an RFID tag.
- a memory element for an IC tag For example, a FeRAM chip 3 called a ferroelectric memory using a ferroelectric material is mounted on a substrate 2 made of a metal plate, a ceramic plate, etc., and also manages a moving body or a large area.
- the hybrid wireless IC tag 7 is a wireless IC tag for use in a concrete structure quality control system including various sensors electrically connected to the FeRAM chip 3.
- the wireless IC tag 7 is embedded in a concrete structure, measures various data of the concrete structure, stores the measurement data, writes data to and from the reader / writer 9, and performs reading wirelessly. It has become.
- the FeRAM chip 3 and the UHF band communication antenna chip 8 are controlled by a control unit mounted on the FeRAM chip 3. Depending on the communication frequency band of the reader / writer, communication is performed with the antenna section of the FeRAM chip 3 or the UHF band communication antenna chip 8, and the transmitted data is controlled by the control section and recorded in the large capacity memory of the FeRAM chip 3. To do.
- the antenna unit of the FeRAM chip 3 receives this radio wave, and the control unit stores the transmitted data in the memory unit of the FeRAM chip 3. Control.
- the UHF band communication antenna chip 8 receives this radio wave, and when the UHF band communication antenna chip 8 receives the radio wave, the transmitted data is transferred to the FeRAM chip. The data is stored in the memory unit of the FeRAM chip 3 via the UHF band communication antenna chip 4.
- a management flag readable by the reader / writer 9 is stored in advance in the FeRAM chip 3 of the wireless IC tag 7 or at the time of writing, and this management flag is set when information is written / read by the reader / writer 9. By reading, it is possible to identify the wireless IC tag 1 constituting a predetermined management system. If necessary, the wireless IC tag 1 is equipped with an anti-collision function so that there is no situation in which even if a plurality of wireless IC tags 7 are located in the vicinity, communication cannot be performed due to interference.
- the temperature sensor 4, the Ph sensor 5, and the strain sensor 6 are connected to the FeRAM chip 2 by wiring 24, wiring 25, and wiring 26, respectively. Since the configuration of each sensor is the same as that of the first embodiment, a description thereof will be omitted.
- each sensor is mounted on the substrate 2. However, it is not always necessary to mount the sensor on the substrate 2, and it is only necessary that the FeRAM chip 3 is electrically connected. As shown in FIG. 7, an external power source 12 may be used as the power source for each sensor.
- the type of sensor is not limited to the above.
- the temperature sensor 4, the Ph sensor 5, and the strain sensor 6 are connected to one FeRAM chip 3, and the temperature, hydrogen ion index, and strain of the concrete structure 11 are set to one wireless IC tag 7.
- the sensor provided in the wireless IC tag 7 may be either one sensor or two sensors.
- the embedded wireless IC tag covers the wireless IC tag with an insulating material while maintaining the state in which each sensor can detect temperature, hydrogen ion index, and strain to protect the chip. I want to do it.
- this wireless IC tag 13 is a wireless IC tag in which a battery 14 that can be charged by wireless communication is disposed on the wireless IC tag 1 of the first embodiment, and is provided with a charging mechanism. It is a tag. Then, for example, as shown in FIG. 9, the battery is charged by communication from a reader / writer 9 equipped with a charging device or also serving as a charging device. Other configurations are the same as those of the wireless IC tag 1 of the first embodiment.
- the wireless IC tag 13 is mounted with an FeRAM chip 3 equipped with FeRAM using a ferroelectric as a memory element for an IC tag, a temperature sensor 4, a Ph sensor 5, and a strain sensor 6.
- the wireless communication mechanism provided in the charging device and the wireless communication mechanism provided on the wireless IC tag 13 side communicate with each other using a short-range wireless technology to charge the battery 14 on the wireless IC tag side.
- the accumulated power is used as a power source for driving the wireless IC tag 15, the temperature sensor 4, the Ph sensor 5, and the strain sensor 6.
- a wireless IC tag 13 embedded in a concrete structure or the like is configured such that a battery 14 is charged when a reader / writer 9 equipped with a charging device performs wireless communication.
- the sensor is driven by power supplied from the battery 14 and measures various data of the concrete structure.
- the charging method is such that a coil is disposed in the charging device and the battery, and when a current is passed through the coil on the charging device side, the current is supplied to the coil on the battery side that forms a pair. It may be based on a system using electromagnetic induction for storing the flow. Moreover, you may prepare a charging device separately, without mounting a charging device in the reader / writer 9. FIG. Further, the battery 14 may not be disposed on the substrate 2 and may be electrically connected to the wireless IC tag.
- the wireless IC tag 13 includes the temperature sensor 4, the Ph sensor 5, and the strain sensor 6. However, the wireless IC tag may have any one sensor or two sensors. In other words, the battery 14 may be connected to the sensor electrically connected to the FeRAM chip 3.
- the battery 14 that can be charged by the above-described wireless communication is disposed in the wireless IC tag 7 of the present invention showing the second embodiment of the present invention.
- This wireless IC tag 15 is provided with a battery 14 in a hybrid wireless IC tag 7 including a FeRAM chip 3, a UHF band communication antenna chip 8, a temperature sensor 4, a Ph sensor 5, and a strain sensor 6.
- This is a wireless IC tag in which a battery 14 and a temperature sensor 4, a Ph sensor 5, and a strain sensor 6 are electrically connected.
- the wireless IC tag 16 is a wireless IC tag including the power generation mechanism 17 provided with the power generation mechanism 17 in the wireless IC tag 1 of the first embodiment.
- Other configurations are the same as those of the wireless IC tag 1 of the first embodiment.
- the wireless IC tag has a FeRAM chip 3 mounted with FeRAM using a ferroelectric substance as a memory element for the IC tag.
- the power generation mechanism 17 is disposed on the substrate and is electrically connected to the temperature sensor 4, the Ph sensor 5, and the strain sensor 6.
- This power generation mechanism 17 is a vibration power generation element that generates electric power by vibration, and generates relatively weak electricity by human motion, vibration due to driving of the apparatus, vibration due to passage of a building or bridge through a vehicle, and the like.
- the electric power generated by the power generation mechanism may be used as it is, or may be stored in a secondary battery provided in the power generation mechanism.
- the power generated by the power generation mechanism 17 is used as a power source for driving the wireless IC tag 16, the temperature sensor 4, the Ph sensor 5, and the strain sensor 6.
- the power generation mechanism 17 when a person carrying the wireless IC tag 16 moves, or when the wireless IC tag 16 attached by a technique such as embedding or sticking to a concrete structure, a bridge, or a product is passed by a vehicle or shaking during transportation. When it vibrates, the power generation mechanism 17 generates power using these vibrations as energy.
- the power generation mechanism 17 is not limited to the vibration power generation element described above, and may be a mechanism that generates power by heat from the outside as a thermoelectric element, or generates power by external radio waves such as RF waves.
- a power generation mechanism by wireless communication may be used, and a mechanism using various external energies generally called harvester technology can be used.
- the power generation mechanism 17 may be disposed in the vicinity of the wireless IC tag without being disposed on the substrate 2 and electrically connected to each sensor.
- the above-described power generation mechanism 17 is provided in the wireless IC tag 7 of the present invention showing the second embodiment of the present invention, and the power generation mechanism is provided. It is a wireless IC tag.
- This wireless IC tag 18 includes a power generation mechanism 17 in a hybrid wireless IC tag 7 including an FeRAM chip 3, a UHF band communication antenna chip 8, a temperature sensor 4, a Ph sensor 5, and a strain sensor 6.
- the power generation mechanism 17 is a wireless IC tag in which the temperature sensor 4, the Ph sensor 5, and the strain sensor 6 are electrically connected.
- the wireless IC tag 1 is placed in concrete during construction of a concrete structure 11 in which concrete or mortar formed by placing cement, aggregate, and water is placed in a mold. Used buried. Moreover, it may be used by attaching to the wall surface of the concrete structure 11 after placement as needed. At this time, driving power to each sensor may be taken from the external power supply 12.
- the temperature, hydrogen ion index, and strain of the concrete structure 11 before the concrete structure 11 is cured, and the temperature, hydrogen ion index, and strain of the concrete structure 11 after the curing are stored in advance in the control unit of the FeRAM chip 3. Measured at regular intervals by control or when communicating with the reader / writer 9.
- the control unit 3 of the FeRAM chip 3 controls the temperature sensor 4, the Ph sensor 5, and the strain sensor 6 connected to the FeRAM chip 3, and each sensor determines the concrete temperature of the concrete structure 11 based on this control, The hydrogen ion index of the concrete structure 11 and the strain of the concrete structure 11 are measured, and the control unit stores the measured data in the memory of the FeRAM chip 3.
- the control unit 3 of the FeRAM chip 3 operates, and the concrete detected by each sensor.
- the concrete temperature of the structure 11, the hydrogen ion index of the concrete structure 11, and the strain data of the concrete structure 11 may be stored in the memory of the FeRAM chip 3.
- the reader / writer 9 is a device capable of data communication with the wireless IC tag 1, and reads and writes various data and the like by wireless communication with the wireless IC tag.
- the manager of the concrete structure 11 such as a construction official or a building manager communicates the reader / writer 9 to the place where the wireless IC tag 1 is embedded or attached, and the wireless IC tag Each stored data is read out.
- the data read by the reader / writer 9 may be stored and managed in the computer 10.
- the antenna portion of the FeRAM chip 3 constituting the wireless IC tag 1 receives the data, and this data is stored in the memory of the FeRAM chip 3.
- an automatic measuring device for the cement product has a water / cement ratio of the cement product, Manufacturing information including a product characteristic value obtained by measuring a product characteristic value such as a cement admixture and temperature, a manufacturing date, and the like may be written.
- the temperature, hydrogen ion index, and strain of the concrete structure can be known at any time, and the risk of collapse due to external factors such as deterioration of the concrete structure and earthquakes should be estimated. That can increase the safety of the building.
- the system including all of the temperature sensor 4, the Ph sensor 5, and the strain sensor 6 has been described. However, any one sensor or two sensors are connected to the FeRAM chip 3, and the one sensor is connected. Or you may make it the system which controls two sensors.
- the wireless IC tag used in the above-described system is the wireless IC tag according to the second embodiment of the present invention in which the wireless IC tag itself includes a charging mechanism or a power generation mechanism in addition to the wireless IC tag according to the first embodiment of the present invention.
- the wireless IC tag of the form to the wireless IC tag of the fifth embodiment may be used. In this case, it is not necessary to provide the external power source 12, and a power source for driving each sensor can be disposed in the wireless IC tag.
- a wireless IC tag with a temperature sensor capable of wireless data communication Since a wireless IC tag with a temperature sensor capable of wireless data communication is used, it is easy to measure the temperature inside the concrete and retrieve the temperature data. Temperature data can be stored, and for each concrete actually used, the person in charge at the site and the manager after placement can easily and quickly estimate the strength of the concrete using the temperature and accumulated temperature. Can contribute to improving the safety of concrete structures.
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Abstract
Description
2 基板
21配線
22配線
23配線
24配線
25配線
26配線
3 FeRAMチップ
4 温度センサー
41サーミスタ
42内部電極
43メッキ層
44メッキ層
45保護膜
5 Phセンサー
51ガラス電極
52比較電極
53液絡孔
6 歪みセンサー
7 無線ICタグ
71絶縁材料
8 UHF帯通信アンテナチップ
9 リーダーライター
10 コンピュータ
11 コンクリート構造物
12 外部電源
13 無線ICタグ
14 電池
15 無線ICタグ
16 無線ICタグ
17 発電機構
18 無線ICタグ
Claims (25)
- 書き込み・読み取り装置との間で無線通信によりデータの書き込み・読み取りが可能なコンクリート構造物に取り付けまたは埋設される無線ICタグであって、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリと、前記強誘電体メモリに電気的に接続された温度センサーを有し、前記温度センサーで計測した前記構造物の温度データを前記強誘電体メモリに記憶することを特徴とする無線ICタグ。
- 書き込み・読み取り装置との間で無線通信によりデータの書き込み・読み取りが可能なコンクリート構造物に取り付けまたは埋設される無線ICタグであって、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリと、前記強誘電体メモリに電気的に接続されたPhセンサーを有し、前記Phセンサーで計測した前記構造物の水素イオン指数データを前記強誘電体メモリに記憶することを特徴とする無線ICタグ。
- 書き込み・読み取り装置との間で無線通信によりデータの書き込み・読み取りが可能なコンクリート構造物に取り付けまたは埋設されるに埋設する無線ICタグであって、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリと、前記強誘電体メモリに電気的に接続された歪みセンサーを有し、前記歪みセンサーで計測した構造物の歪みデータを前記強誘電体メモリに記憶することを特徴とする無線ICタグ。
- 書き込み・読み取り装置との間で無線通信によりデータの書き込み・読み取りが可能なコンクリート構造物に取り付けまたは埋設される無線ICタグであって、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリと、前記強誘電体メモリに電気的に接続されてなる、温度センサー、Phセンサー、歪みセンサーのうち少なくとも二種類以上のセンサーを有し、前記温度センサーで計測した前記構造物の温度データ、前記Phセンサーで計測した前記構造物の水素イオン指数データ、前記歪みセンサーで計測した前記構造物の歪みデータの少なくともいずれかのデータを前記強誘電体メモリに記憶することを特徴とする無線ICタグ。
- 無線ICタグは、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリと、UHF帯域の電波を受信するUHF帯通信アンテナチップとを連結させて基板上に実装し、UHF帯を超える長い周波数帯の通信を前記強誘電体メモリのアンテナ部で行いデータを前記強誘電体メモリに記憶させるとともに、UHF帯の通信を前記UHF帯通信用アンテナチップで行い、前記データを前記強誘電体メモリに記憶させることを特徴とする請求項1乃至請求項4のいずれかに記載の無線ICタグ。
- 無線ICタグは、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリを実装した基板を絶縁材料で覆ってなることを特徴とする請求項1乃至請求項5のいずれかに記載の無線ICタグ。
- 温度センサーは、測温抵抗体、熱電対、サーミスタのいずれかとし、前記温度センサーが検出した電気信号を前記強誘電体メモリに記憶することを特徴とする請求項1または請求項4乃至請求項6のいずれかに記載の無線ICタグ。
- Phセンサーは、コンクリート構造物の測定部位をセンサーに配設されるフィルム上に接触させることで、測定部位での反応性、酸・アルカリの付着量、測定部位内部から放出される酸・アルカリ量などを検出する半導体イメージングセンサー、または、ガラス電極と比較電極を有してなり該電極間の電位差を検出するガラス電極センサーとし、前記Phセンサーが検出した電気信号を前記強誘電体メモリに記憶することを特徴とする請求項2または請求項4乃至請求項7のいずれかに記載の無線ICタグ。
- 歪みセンサーはコンクリート構造物の少なくとも二点の相対位置の変化量を検出する変位センサーとし、前記歪みセンサーが検出した電気信号を前記強誘電体メモリに記憶することを特徴とする請求項3または請求項4乃至請求項8のいずれかに記載の無線ICタグ。
- 無線ICタグが有するセンサーは、基板上に実装されることを特徴とする請求項1乃至請求項9のいずれかに記載の無線ICタグ。
- 無線ICタグは、充電装置から非接触で充電される電池と電気的に接続されてなることを特徴とする請求項1乃至請求項10のいずれかに記載の無線ICタグ。
- 電池は、充電装置からの所定の周波数帯の電波により非接触で充電される電池であることを特徴とする請求項11に記載の無線ICタグ。
- 電池は、基板上に実装されてなることを特徴とする請求項11または請求項12に記載の無線ICタグ。
- 電池に充電する充電装置は、書き込み・読み取り装置に備えられてなることを特徴とする請求項11乃至請求項13のいずれかに記載の無線ICタグ。
- 無線ICタグが有するセンサーは、充電装置から非接触で充電される電池から電源供給されて駆動することを特徴とする請求項11乃至請求項14のいずれかに記載の無線ICタグ。
- 無線ICタグは、振動、熱または電波により自己発電する発電機構と電気的に接続されてなることを特徴とする請求項1乃至請求項15のいずれかに記載の無線ICタグ。
- 発電機構は、基板上に実装されてなることを特徴とする請求項16に記載の無線ICタグ。
- 無線ICタグが有するセンサーは、振動、熱または電波により自己発電する発電機構から電源供給されて駆動することを特徴とする請求項16または請求項17に記載の無線ICタグ。
- 書き込み・読み取り装置との間で無線通信によりデータの書き込み・読み取りが可能なコンクリート構造物に取り付けまたは打設時に埋設される無線ICタグであって、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリと、前記強誘電体メモリに電気的に接続された温度センサーを有し、前記強誘電体メモリに搭載されてなる制御部が温度センサーを制御する手段と、前記温度センサーが、前記コンクリート構造物の温度を計測する手段と、計測した前記構造物の温度データを前記強誘電体メモリに記憶する手段を有することを特徴とする無線ICタグを用いたコンクリート構造物品質管理システム。
- 書き込み・読み取り装置との間で無線通信によりデータの書き込み・読み取りが可能なコンクリート構造物に取り付けまたは打設時に埋設される無線ICタグであって、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリと、前記強誘電体メモリに電気的に接続されたPhセンサーを有し、前記強誘電体メモリに搭載されてなる制御部がPhセンサーを制御する手段と、前記Phセンサーが、前記コンクリート構造物の水素イオン指数を計測する手段と、計測した前記構造物の水素イオン指数データを前記強誘電体メモリに記憶する手段を有することを特徴とする無線ICタグを用いたコンクリート構造物品質管理システム。
- 書き込み・読み取り装置との間で無線通信によりデータの書き込み・読み取りが可能なコンクリート構造物に取り付けまたは打設時に埋設される無線ICタグであって、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリと、前記強誘電体メモリに電気的に接続された歪みセンサーを有し、前記強誘電体メモリに搭載されてなる制御部が歪みセンサーを制御する手段と、前記歪みセンサーが、前記コンクリート構造物の歪みを計測する手段と、計測した前記構造物の歪みデータを前記強誘電体メモリに記憶する手段を有することを特徴とする無線ICタグを用いたコンクリート構造物品質管理システム。
- 書き込み・読み取り装置との間で無線通信によりデータの書き込み・読み取りが可能なコンクリート構造物に取り付けまたは打設時に埋設される無線ICタグであって、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリと、前記強誘電体メモリに電気的に接続された温度センサー、Phセンサー、歪みセンサーのうち少なくとも二種類以上のセンサーを有し、前記強誘電体メモリに搭載されてなる制御部が各センサーを制御する手段と、各センサーが前記コンクリート構造物のデータを計測する手段と、計測した前記コンクリート構造物のデータを前記強誘電体メモリに記憶する手段を有することを特徴とする請求項19乃至請求項21のいずれかに記載の無線ICタグを用いたコンクリート構造物品質管理システム。
- 書き込み・読み取り装置との間で無線通信によりデータの書き込み・読み取りが可能なコンクリート構造物に取り付けまたは埋設される無線ICタグであって、外部からの電波を受信しこれと共振して電流を発生する電源部と所定の周波数帯域で無線交信するためのアンテナ部を有する強誘電体を利用した強誘電体メモリと、前記強誘電体メモリに電気的に接続された温度センサー、Phセンサー、歪みセンサーの少なくともいずれかのセンサーを有し、前記センサーのいずれかが変化量を検出すると検出したデータを前記強誘電体メモリに記憶する手段を有することを特徴とする無線ICタグを用いたコンクリート構造物品質管理システム。
- 無線ICタグは、充電装置から非接触で充電される電池と電気的に接続されてなり、無線ICタグが有するセンサーは、前記電池から電源供給されて駆動することを特徴とする請求項19乃至請求項23のいずれかに記載の無線ICタグを用いたコンクリート構造物品質管理システム。
- 無線ICタグは、振動、熱または電波により自己発電する発電機構と電気的に接続されてなり、無線ICタグが有するセンサーは、前記発電機構から電源供給されて駆動することを特徴とする請求項19乃至請求項24のいずれかに記載の無線ICタグを用いたコンクリート構造物品質管理システム。
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CN2009801283306A CN102099658A (zh) | 2009-06-18 | 2009-10-06 | 无线ic标签及使用该无线ic标签的混凝土结构体质量管理系统 |
BRPI0916929A BRPI0916929A2 (pt) | 2009-06-18 | 2009-10-06 | etiqueta de ci sem fio, e, sistema de administração de qualidade de objeto estrutural de concreto |
US13/001,702 US20110115613A1 (en) | 2009-06-18 | 2009-10-06 | Wireless ic tag, concrete structural object quality management system using same |
CA2746172A CA2746172A1 (en) | 2009-06-18 | 2009-10-06 | Wireless ic tag, concrete structural object quality management system using same |
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JP2011022982A (ja) | 2011-02-03 |
US20110115613A1 (en) | 2011-05-19 |
CN102099658A (zh) | 2011-06-15 |
CA2746172A1 (en) | 2010-12-23 |
BRPI0916929A2 (pt) | 2019-09-24 |
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