JP6018314B2 - Radio frequency identification device transponder including sensor element - Google Patents

Description

  The present invention relates to a system and method for determining information about a product. The invention particularly relates to remote querying of product information and subsequent use of the information obtained.

  Consumer goods with a useful life defined by the consumption of goods are well known. The useful life can be viewed as one or more events associated with the consumption of at least a portion of the usable quantity of goods. There may be information related to the product usage environment and / or the amount of product used and still available, but may also be generally inaccessible to consumers of typical products. is there. What is needed is a system and method for extracting product related information in such a way as to make this information accessible and usable by consumers.

  In one aspect, the sensor system includes a tag. The tag includes a radio frequency chip and a first antenna, and also includes or is coupled to at least one sensor. The sensor is adapted to provide an output that approximates a change in the sensor's environment. The sensor generates an analog output and includes an output terminal. The radio frequency chip includes a memory element, an input terminal, and an output terminal. The input terminal is disposed in electrical communication with the output terminal of the sensor. The first antenna is disposed in electrical communication with the output terminal of the chip.

  In one aspect, a method for determining product information includes providing a tag and an interrogator adapted to detect radiation associated with the tag data, querying the tag status, and tag status And providing an output associated with the interpreted tag status. The tag includes a digital memory that stores data associated with the product.

Additional features and benefits of the present invention will become more readily apparent upon review of the drawings.
1 shows a schematic diagram of one embodiment of the present invention. 1 shows a schematic diagram of one embodiment of the present invention. 1 shows a schematic diagram of one embodiment of the present invention.

Definition of terms:
The following text provides a general description of many different embodiments of the present invention. This description is to be construed as merely illustrative, and not exhaustive, as it is impractical, if not impossible, to describe every possible embodiment. Any mechanism, property, component, composition, ingredient, product, process, or methodology described in any document may be deleted, and any other mechanism, property, component described herein It will be understood that it can be combined with a composition, ingredient, product, process or methodology, or can be replaced in whole or in part. Numerous alternative embodiments can be implemented using either the latest technology or technology developed after the filing date of this patent, but such embodiments are still claimed. It will be included in the range.

  It is also to be understood that certain terms are defined in this patent using the sentence “when used in this specification the term“ ___ ”means“ ... ”” or similar sentences. Unless defined otherwise, the meaning of the term, whether express or implied, is not intended to be limited beyond its plain or ordinary meaning, and such terms are The scope should not be construed as being limited based on the statements made in any paragraph (other than the language of the claims). Neither term is intended to be essential to the invention, unless stated as essential to the invention. As long as any term in the claims at the end of this patent is mentioned in this patent in a manner consistent with a single meaning, it is simply understood so as not to confuse the reader. This is done for the sake of simplicity only and is not intended to limit the terminology of the claims to its single meaning, either by implication or otherwise. Finally, unless the elements of a claim are defined by elaborating the “meaning” and function of the word without any structural details, the scope of the elements of the claim is It is not intended to be construed based on the application of Article 112, sixth paragraph of the Act.

  In one aspect, the sensor system includes a tag. The tag may include one or more layers of conductive ink and non-conductive material printed on the substrate. Exemplary substrate materials include polymer films, paper, highly permeable dielectric materials, and FR-4 materials. The multilayer structure may further include a partial layer of non-conductive material that separates at least a portion of the conductive layer. Exemplary conductive layers include copper and silver inks. The tag includes a radio frequency chip and a first antenna, and also includes or is coupled to at least one sensor. Tags can also be arranged as cards, coins, or circuits on an inlay. The chip can be passive or active. Exemplary chip / first antenna combinations include model numbers: RI-I03-112A-03 (13.56 MHz), and RI-INL-R9QM (134.2 kHz), or model TRF7970A, Available from Texas Instruments, Dallas, TX. The antenna may be in the physical form of a coil or dipole and may be a conductive component of a product or package that is in electrical communication with the rest of the tag.

  The sensor can be selected according to the nature of the environmental factors of interest. Typical sensor types include chemical sensors, electrical sensors, biological sensors, mechanical sensors, and physical sensors. A tag sensor may include multiple sensors of a single type or a combination of different types of sensors.

  Representative chemical sensors include Figaro Engineering Inc. And model TGS 813 gas sensors for propane, butane, methane, alcohol, hydrogen, available from Conrad Electronics of Wernberg-Koblitz, Germany. A representative electronic sensor is a model AH1751-PG-BA Hall effect sensor for measuring magnetic fields, manufactured by Zetex Semiconductors and available from Allied Electronics (Fort Worth, TX).

  Exemplary mechanical sensors include the MEMS based model L3G3200D triaxial gyro made by ST Microelectronics, and the model N11MA512020 strain gauge sensor made by Allied Electronic, Forth Worth, TX.

  Exemplary physical sensors include model VCNL4020 made by Vishay, and MEMS based model LPS331AP pressure sensor made by ST Microelectronics.

  Exemplary biological sensors can be prepared to detect biological molecules such as diseases, ions, biomarkers, antibodies, DNA, various proteins, or metabolic markers. The detection method may basically be potentiometric titration or amperometric properties. Material samples to be analyzed can be collected from an organism or environment, including blood, epithelial cells, mucus, saliva, feces, hair, urine, air, water, and other environmental materials. The electrode configuration can be two (working electrode and counter electrode) or three (working electrode, counter electrode, and reference electrode), and the electrodes are made from various substrates such as gold, silver, platinum, carbon, etc. obtain. These electrodes can be purchased or made from Conductive Technologies, Inc., York, PA (Sensors and Actuators B, 114, (2006) 357-363).

A potentiometric biosensor that detects antibodies may utilize a conventional ELISA sandwich assay. The aforementioned electrodes are coated with a conductive polymer such as poly (pyrrole) to prepare a substrate that is suitable for biological attachment while maintaining conductivity to the electrode substrate. Assay materials include St. The following can be purchased from Sigma-Aldrich of Louis, MO: capture antibody-anti-mouse IgG (Fc specific) antibody, F (ab ′) ₂ fragment, goat host (M0284), antibody-mouse serum (M5905) , Analyte competitor-anti-mouse IgG (gamma chain specific) peroxidase antibody goat host (A3673), and albumin from bovine serum are used in the process to prevent non-specific binding (A7906).

  The ELISA sandwich configuration on the working electrode is described below in order from bottom to top: capture antibody adsorption to poly (pyrrole) substrate, analyte, analyte competitor with HRP conjugate, hydrogen peroxide A working solution enzyme that catalyzes HRP to produce. The reaction at the working electrode generates a potential on the order of μV.

  Since the required current is in the microampere range, the necessary power source for the sensor can be supplied by the power obtained from the RFID circuit. The resulting power can be stored by an element such as a capacitor for later use by the sensor.

  The tag may be configured such that the output of the sensor changes the value of one or more bits of a word stored in the memory of the tag's chip. In one embodiment, the non-zero sensor output may change the specified bit value from either 1 to 0 or 0 to 1. Alternatively, the tag's circuitry may provide a bias that is compared to the sensor output. In this embodiment, only sensor outputs that exceed the bias threshold or between a set of lower and upper thresholds may change the value of the bit.

  A tag can include more than one sensor. In one configuration of a multi-sensor tag, each sensor output may be used to change its own bit value. In another embodiment, the set of sensors may be polled as power is supplied to the tag, and a single specific bit of tag memory is passed through a series of values depending on the output of each polled sensor. A single particular bit of the memory is stepped repeatedly. As described above, the tag changes the value of the bit associated with any non-zero sensor output, and only values above the lower threshold or between the upper and lower thresholds change each bit value. As such, it may be designed.

  The tag can be read using a radio frequency protocol, such as a near field communication (NFC) protocol. When a tag is queried or read, power is supplied to the tag circuit and the sensor output changes the tag's memory. The tag memory is then read by the interrogator. This obtains a digital value of the memory word that indicates the state of the sensed tag's environment. The tag's associated communication frequency range may be HF, UHF, or an appropriately selected frequency range determined by the tag's specific needs in the intended environment and use of the tag.

  The sensor system may further include an interrogator. The interrogator detects the electromagnetic radiation and embeds the detected radiation by demodulating the detected radiation, and a second antenna adapted to generate electromagnetic radiation including the resonant frequency of the first antenna. A receiver for extracting the collected data. The Bluetooth ™ RFID reader, model number 223012 (available from GAO RFID from Toronto Canada) represents one form of interrogator. The model 223012 interrogator has the ability to query the radio frequency tag and determine the status of the tag's memory to extract information related to the output of the sensor related to the tag's environment. 223012 further provides a Bluetooth ™ communication protocol for sending information extracted from the tag to a secondary device or secondary interrogator, such as a computer or smartphone capable of using Bluetooth ™, for example. Including secondary network communication links. The secondary interrogator can further analyze information regarding the status of the tag environment and provide an output regarding the particular tag and / or tag environment status. It may further include a display element, such as an LCD or LED screen, for displaying the output associated with the analyzed tag information. The interrogator may further include one or more sensors for confirming information associated with the interrogator environment. Sensors can include temperature, humidity, and acceleration sensors. The interrogator may further include one or more cameras that allow capture of images associated with the product, tag, or environment. The interrogator may include a global positioning capability to allow the interrogator to confirm and share information regarding the interrogator's geographic location.

  In one aspect, the smartphone can function only as an interrogator. In this aspect, the smartphone may query the tag and check information from the tag's memory. The interrogator may analyze the information or otherwise interpret it and generate output. The output may be provided to the system user via audio output, visual output, haptic output, or a combination thereof. The interrogator may utilize input from a smartphone sensor or system, including information and analysis available from network resources, such as cloud computing resources, in addition to tag information at the time of output generation. Representative smartphones suitably configured to function as system interrogators include Acer ™ E320 Liquid Express, Blackberry ™ Bold ™ 970; Casio IT-800, available from Research In Motion. Google, Inc .; Google Nexus 7 ™ available from Mountain View Ca; HTC Desire C ™ available from LG Optimus Elite HTC; Motorola Droid ™ Razr ™ available from Motorola; Nokia 700; Panasonic BizPad (trademark); Samsung Galaxy S Advance (trademark).

  In one aspect, the sensor system may include a product. The term “product” is used in the broadest sense and refers to any product, product family, service, communication, entertainment, environment, organization, system, tool, and the like. For example, examples of product groups are personal and household products used in individuals, families or homes. Examples of representative and non-limiting list of product categories for personal and household products include antiperspirants, baby care, eau de cologne, commercial products (wholesale, consumer consumer goods, similar to industrial and commercial markets) Products), cosmetics, deodorant, dish care, feminine protection goods, hair care, hair color, health care, household cleaning products, laundry, oral care, paper products, personal cleaning products, disposable absorbent products, pet health And nutritional products, prescription drugs, prestige perfumes, skin care, food, snacks and beverages, special fabric care, shaving and other hair growth management products, small electrical equipment, equipment and batteries, haircutting services, cosmetology, spa therapy Entertainment such as medical, dental, visual services, cinemas, stadiums, plus film or movie shows, theater, and sporting events Easy service. Various product forms may fall into each of these product categories.

  Representative product forms and trademarks are shown on the Procter & Gamble website (www.pg.com) and linked sites. Consumer products that are part of product categories other than those listed above are also contemplated by the present invention, as well as other product forms and brands other than those disclosed on the website identified above. It will be understood that it is encompassed by the present invention.

  Representative products within the laundry product category include detergents (including powders, liquids, tablets, and other forms), bleaches, conditioners, softeners, antistatic products, and refreshers (liquid refreshers and dryer sheets) Are included). Representative products within the oral care product category include dentifrices, floss, toothbrushes (including manual and motorized forms), mouthwashes, gum care products, dental whitening products, and other dental care products. . Exemplary feminine protection products include pads, tampons, interlabial products, and panty liners. Typical baby care products include diapers, wipes, bibs, diaper changes and bed mats, and foaming hand soap for hand washing.

  Exemplary health care products include laxatives, fiber supplements, oral and topical analgesics, gastrointestinal products, respiratory and cough / cold products, heat delivery products, and water purification products. Typical paper products include toilet paper, paper towels, and tissue paper. Exemplary hair care products include shampoos, conditioners (including rinse-off and leave-in forms) and hair styling aids. Typical residential care products include sweeper products, floor cleaning products, wooden floor cleaners, antibacterial floor cleaners, fabric and air refreshers, and car wash products. Skin care products include body wash, facial cleanser, hand lotion, moisturizer, conditioner, astringent lotion, surface exfoliating product, micro skin polishing and peeling product, skin rejuvenation product, anti-aging product, mask, UV protection product, And skin care puffs, wipes, disks, fabrics, sheets, tools and devices (with or without skin care compositions).

  In one embodiment, the product may include a test unit that evaluates other products, such as a portable power source. In this embodiment, the product may include all described elements such as chips, antennas, and shields. In this embodiment, the user places the power source of interest in the product and uses an interrogator to engage the tag of the unit. The interrogator provides power to the tag, reads and analyzes the value in the memory, and generates an output. The analysis evaluates a reading in the form of an approximate, open circuit voltage of the power supply. The output may be in the form of a remaining power percentage, and may be a color-coded output associated with remaining power, simple text output, good or bad, or a combination thereof. The output can be further communicated using a network communication link and / or displayed using an interrogator display element.

  Other product groups include, among other things, sports equipment, entertainment (books, movies, music, etc.), video, and home medical care, and first aid products.

  The tag may be attached to a package of products, such as a primary package of liquid products or granular products. The tag may be immersed in or floated on the packaged liquid or granular product. The tag may be incorporated into the product, such as in a disposable absorbent article (such as in a diaper) for the purpose of detecting liquid contact with the absorbent core of the diaper. The tag may be placed on the surface of the product itself, such as on the surface of the battery, for the purpose of sensing information about available remaining power in the battery.

  By adapting the antenna of the tag to the shape of the outer surface of the product, the communication between the interrogator and the tag can be omnidirectional and can be achieved at various angles between the interrogator and the tag. It is thought to produce a system.

  One of the problems of making communication devices for various products arises when the communication device is used in a body that is electromagnetically conductive. The principle of free space radio wave propagation is not valid in the vicinity of highly conductive objects. In addition, antenna performance is significantly degraded when the antenna is placed near metal. Thus, simply placing an RFID tag on a battery or on an object with a conductive body may not achieve the desired cure (eg, power acquisition and / or data transmission). In particular, this problem is not limited to rechargeable / disposable batteries. For example, a package containing a shaving gel, a can such as a shaving foam, or a metallized film may have the same problem due to the conductivity of the container. Generally, an RFID tag adjacent to a metal body reduces the signal connecting the reader and the tag to 1/10.

  One way to prevent the effects caused by the metal proximal to the antenna is to prevent the electromagnetic field from entering the metal. For example, by separating the antenna and the metal surface by placing a material with suitable electromagnetic properties and dimensions between the antenna and the metal surface, the electromagnetic field can be branched around the metal / conductive body of the product. it can. The properties of the divertor material depend on the exact metal used and the RFID frequency. The magnetic diverter effectively separates the tag from the can. Effective separation can be achieved by air filled gaps between the materials.

  In one aspect, a method for determining product information includes providing a product that includes the tag described above. The tag includes at least one sensor adapted to provide an output that approximates a change in the sensor's environment. The sensor has at least one output terminal. The tag also includes a memory element, an input terminal, and an output terminal, the input terminal is disposed in electrical communication with the output terminal of the sensor, and the first antenna is disposed in electrical communication with the output of the chip. .

  The method may also include providing an interrogator that is compatible with the detected radiation associated with the tag data. The interrogator may be a smartphone or other computing device that includes an RF or NFC protocol reader connected to the Bluetooth ™ function described above, or an RF or NFC capable reader.

  In one aspect, the method may be minimized to providing a product that includes a tag, providing software that is commercially available or compatible with consumer owned devices. The consumer may choose to utilize application software that allows the device to function as an interrogator to be described.

  The interrogator can be used to determine the current state of a tag that uses an RF communication protocol, such as the NFC protocol. The interrogator may interpret the data received from the tag using a software application written for this purpose. In one embodiment, the tag and sensor may be configured to detect an open circuit voltage of the battery cell. The detected open circuit voltage may change the value of at least one bit in the tag's memory. The interrogator then reads the value in the memory and correlates this value with the open circuit voltage and the remaining usable battery life. The remaining usable battery life that may be used may be displayed to the system user by an interrogator display element. The displayed output may have an item of percentage of remaining useful life, an algorithm used to set a threshold to convert the detected open circuit voltage to battery life analog Depending on the product, it may be an analog rather than red, yellow, and green indicating a little to no useful life, some useful life, or a significant useful life. In one embodiment, the application may present steps for a user of the application to enter the nature of the battery load case. Typical load cases include power supplies for flasher cameras, toys, flashlights, remote control units, watches, or radios, or other entertainment systems.

  As an example, the tag may be incorporated as a sensor system with a 1.5V alkaline power supply. In this example, the sensor may be configured to read an open circuit voltage (OCV) in the range of 0.8V to 1.65V. The tag bias circuit is designated to provide a first bit to change state if the OCV exceeds 1.35 volts as an indicator that more than 30% remains available. Also good. This may be associated with the application output of the power supply, color-coded green. The second part of the tag may provide a second bit to change state when the OCV is greater than 1.25 volts, as an indicator that less than 30% power remains. May be shown as a yellow state of the power supply. The tag may be further configured to have a third bit change state when the OCV is less than 1.25 volts, and the application may indicate a red power state. Alternatively, the tag bits may remain the same at either less than 1.25 volts or greater than 1.35 volts to simplify circuit design.

  In one aspect, the interrogator may incorporate a secondary network communication module that grants the device the ability to send and receive data via a mobile phone or other network including a local area or WiFi network. In such an aspect, the interrogator may send data received from the tag and / or analysis of data from the tag. The interrogator software application analyzes the data from the tag to determine if the product associated with the tag needs to be replenished, or the product usage history formed through the tag's series of interrogators. In view of this, it may be estimated when such replenishment is required. In this aspect, the application may be used to purchase additional products over the network. The application may further be used to present related products for purchase to the user or other products not directly related to the product.

  In one embodiment, the system tag may be subdivided. One part may include an antenna and a chip, and the other part may include a sensor. The two parts of the tag may be arranged such that the sensor is exposed to the functional environment of the absorbent article and the antenna and chip portions are not exposed to the functional environment of the article. The antenna and chip portion are removable and can therefore also be reusable. The antenna and chip portion may be retained in the product while the sensor may be removable. In one embodiment, the removable sensing element may be coupled to a resident chip / antenna element. By way of example, a personal care device, such as a razor or an oral care device, may be configured with a resident antenna and chip with contacts, allowing insertion and removal of sensing elements. The sensing element may be removed for disposable, replacement or cleaning and reinsertion. In one embodiment, APLIX Inc. Conductive hook and loop fasteners available from (Charlotte, NC) may be used to form an intermediate between the functional environment of the article and the exterior of the article. The attachment mechanism between the article, the sensor, and the removable tag that provides electrical conductivity can be hook and loop, compression (eg, elastic band, garter), adhesive (eg, adhesive strip), magnetic, or these It can be a combination. In this embodiment, the sensor may be made as an assembly that is in electrical contact with the conductive hook and loop, and the conductive hook and loop pad is then placed on the outer surface of the article, while the sensor is It may be placed in a functional environment within the article. Matching pads may be introduced as part of the antenna and chip assembly assembly, and each of the two assemblies can be integrated using matching hook and loop pads for tag operational applications. it can. This method allows more expensive antennas and chip assemblies to be reused, reducing the overall cost associated with using a system with many corresponding disposable items. Corresponding assemblies are conductive, available from, for example, MG Chemicals (Surrey, BC, Canada) to secure the electrical leads of the corresponding part of the tag to its corresponding hook and loop fastening pads. It can be formed using an adhesive.

  A tag including a capacitive sensor coupled to a tag memory may be placed in a package, such as a mascara package, so that the sensor output approximates the amount of product remaining in the package. The axis of the sensor may be aligned with the shape of the package so that the portion of the sensor that contacts the product changes as the amount of product in the container changes. Upon interrogation, the tag sensor provides an output that approximates the rest of the product fee. The tag circuit may be biased so that only sensors that exceed a certain value or within a certain range will change the value of the bit associated with the output. A tag may or may not exist for a given amount of product based on information from the manufacturer on how much product should be used as a threshold to generate output associated with a particular product and / or package An indicator that indicates The interrogator reads the stored value. The application software then analyzes the reading and interprets this as the remaining product quantity. The software may then provide the user with an output indicating the amount in the package, or the amount of product remaining as a percentage of the original amount, or the output may simply indicate that it is time to replenish the product . The software may be written to make suggestions to the user to replenish the product at a certain amount or percentage threshold. The software may use the interrogator's network communication function to allow the user to connect to the network retail store to purchase replenishment products sold by the network retailer. The software may search the network to identify a set of retailers and may also collect information such as the price and shipping method of the products associated with each retailer. The software may identify a retailer located near the user's current location that can use the location provider to purchase the product directly, either by the user or by the GPS or WiFi location information function of the interrogator. .

  Tags that include electrical sensors, such as sensors such as resistors, capacitors, inductances, or combinations thereof, may be provided to contact the product as part of the product / package combination. The system may be configured to sense a change in the product, such as a change in product storage stability, or efficiency, and provide an output associated with the change in the product.

  A tag that includes a temperature sensor may be incorporated into the diaper and upon query, the sensor output to the memory approximates the body temperature of the wearer of the diaper, which is stored digitally in the tag's memory. Application software can read the stored value and interpret it as body temperature. The associated value may be stored in the application software along with other available data such as date, time, location, wearer image, and combinations thereof. A collection of data records may accumulate over time and be used as an indicator of the wearer's health and health status.

  A tag that includes a chemical sensor or biosensor coupled to a memory may be incorporated into a patient's clothing for the purpose of detecting environmental factors associated with pressure ulcer formation. Other tags with chemical or biological sensors can be used for purposes such as detection of metabolic markers in saliva, detection of breath or alcohol in saliva, detection of malodorous compounds in air.

  As shown in FIG. 1, the system 1000 includes an absorbent article 300 and an interrogator 200. The absorbent article 300 includes a tag 100 and a sensor 110. The tag 100 includes a chip 130 and a removable portion 105 that includes an antenna 140. The interrogator 200 includes a sensor 210, a power source 220, an antenna 230, an analysis element 240, a display element 250, and a network link 260. As shown in FIG. 2, portable power supply 400 includes tag 100 and shield 150. As shown in FIG. 3, the package 500 includes a tag 100.

  The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Rather, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as “40 mm” is intended to mean “about 40 mm”.

  All references cited herein, including any cross-references or related patents or related applications, are hereby incorporated by reference in their entirety, unless expressly excluded or otherwise limited. Citation of any document is not an admission that such document is prior art to all inventions disclosed or claimed in this application, and such document alone or in all other references. And no reference to, teaching, suggestion, or disclosure of any such invention in any combination thereof. Further, in this document, the meaning assigned to a term in this document if the scope of any meaning or definition of the term contradicts any meaning or definition of a similar term in a document incorporated by reference. Or it shall conform to the definition.

  While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. Accordingly, it is intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

Claims (15)

A sensor system including a tag ,
The tag is
A first portion comprising at least one sensor contained in or coupled to the tag, the sensor having at least one output terminal and adapted to a predetermined change in the environment of the sensor; A first portion including the at least one sensor configured to generate an analog output in response to transition from a first electrical state to a second electrical state;
A second removable portion including a radio frequency chip, wherein the radio frequency chip includes a memory element including an electrical storage of binary coded words including at least one bit, an input terminal and an output terminal, the input terminal comprising: A second removable portion including the radio frequency chip disposed in electrical communication with the at least one output terminal of the at least one sensor and at least one bit of the memory element ;
The example radio frequency chip first antenna and the ingredients of the arranged to the output terminal in electrical communication,
The radio frequency chip is
Including a bias circuit having a bias threshold;
The bias circuit includes:
Comparing the analog output with the bias threshold so that only an output having a particular value of the analog output corresponding to the predetermined change in the sensor environment is output;
Among the values of one or more bits of a word stored in the memory device, the comparison is configured to change a value of a specific bit associated with an output having the specific value. A sensor system.   The sensor system according to claim 1, wherein the at least one output terminal of the sensor is arranged to be in electrical communication with a plurality of bits of the memory.   A power source, a second antenna adapted to generate electromagnetic radiation including a resonance frequency of the first antenna, and detecting the electromagnetic radiation, demodulating the detected radiation and being embedded from the detected radiation The sensor system of claim 1, further comprising an interrogator including a receiver adapted to extract the collected data.   4. A sensor system according to claim 3, wherein the interrogator comprises a network communication link.   The sensor system according to claim 3, wherein the interrogator includes a sensor.   The sensor system according to claim 3, wherein the embedded data includes the value of at least one bit.   The interrogator further comprises an analysis element adapted to interpret the extracted embedded data and a display element adapted to display a result of the interpretation. Item 4. The sensor system according to Item 3.   The sensor system according to claim 1, wherein the sensor is selected from the group consisting of a chemical sensor, an electrical sensor, a biological sensor, a mechanical sensor, and a combination thereof.   The sensor system according to claim 1, wherein the first antenna includes an omnidirectional antenna.   The sensor system according to claim 1, further comprising a product, wherein the tag includes a part of the product.   The sensor system according to claim 10, further comprising an electric shield disposed between the antenna and the product. A method for determining product information,
Providing at least one product including a tag, comprising:
The tag is
A first portion comprising at least one sensor contained in or coupled to the tag, the sensor having at least one output terminal and adapted to a predetermined change in the environment of the sensor; A first portion including the at least one sensor configured to generate an analog output in response to transition from a first electrical state to a second electrical state;
A second removable portion including a radio frequency chip, wherein the radio frequency chip includes a memory element including an electrical storage of binary coded words including at least one bit, an input terminal and an output terminal, the input terminal comprising: A second removable portion including the radio frequency chip disposed in electrical communication with the at least one output terminal of the at least one sensor and at least one bit of the memory element ;
The step comprising: a first antenna disposed in electrical communication with the output terminal of the radio frequency chip ;
Providing a bias circuit having a bias threshold in the radio frequency chip;
Comparing the analog output with the bias threshold so that only an output having a specific value of the analog output corresponding to the predetermined change in the sensor environment is output;
Changing the value of one or more bits of a word stored in the memory element associated with an output having the particular value by the comparison;
Either provide adapted query device to detect radiation associated with the environmental conditions of the sensor of the tag, or has been provided, and said step,
The interrogator inquires data stored in the memory element related to the state of the tag;
The interrogator interprets the state of the tag;
Providing an output associated with the interpreted state of the tag. The step of providing the interrogator further comprises the step of providing a query device that includes a network communications link, said method characterized by further comprising a step of sharing the data associated with the state of the tag on the network The method according to claim 12.   The method of claim 12, further comprising sharing data from sensors of the interrogator over the network.   The method of claim 12, further comprising purchasing a unit of the product using the network.

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