JP2007314255A - Article control system, and article control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an article control system, and an article control method using an IC tag for storing only ID information without attaching any recording medium for electronically recording physical information on an article to the article. <P>SOLUTION: A means 3 for measuring the color indicated by a detection member to control the physical change of an article with an IC tag 101 recording ID information for identifying an article 1 and the detection member attached thereto, a means 4 for converting the color indicated by the detection member into physical information, and an ID physical data recording means for forming the ID physical data by relating the physical information to the ID information read by an IC tag reader, and recording the ID physical data in an article data control means 601 present outside the IC tag. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an article management system and an article management method using an IC (Integrated Circuit) tag.

  In recent years, many article management systems using IC tags have been proposed or realized as systems for managing articles (for example, supply chain management) in the process from upstream to downstream in distribution. Further, a system for performing temperature management has been proposed as such an article management system. An example of the temperature management system (see Patent Document 1) will be described below.

  A monitored (or managed) object to be transported is transported together with a wireless device having object ID (Identifier) information. Next, transportation state information including the temperature related to the monitored object is measured by a predetermined measuring means. Thereafter, the information is transmitted by the wireless device to the information collecting device that is on the transport route and has receiving means.

  Specifically, the wireless device is realized by a wireless active tag equipped with a transportation state information measuring unit such as a temperature sensor. Since such a sensor-equipped active tag is a wireless device that emits radio waves by itself, a battery is mounted, and it is possible to additionally record the transportation status information on its own before it is wirelessly transmitted. It is equipped with an electronic recording medium. Therefore, sensor-equipped active tags are generally expensive and have a certain physical size.

  As described above, the conditions for monitoring using the sensor-mounted active tag are as follows. First, the article itself, which is the monitoring target, is worthy to have a sensor-mounted active tag and is sufficiently large. Alternatively, a collection of monitoring objects (for example, a box unit, a transport pallet unit, or a transport container unit containing a large number of monitoring objects) is worthy of attaching an active tag equipped with a sensor, and is sufficiently large. There is.

In addition, since the sensor-equipped active tag is equipped with a battery, there is a problem that the battery must be replaced at a certain point. Furthermore, since the active tag with a sensor is generally expensive, it has been necessary to take measures to collect and use it at the final stage of the transportation process.
Japanese Patent Application No. 2006-76687 (paragraphs [0024] to [0025] and the like).

  In the temperature management system for an article as described above, it is necessary to attach a recording medium for electronically recording article temperature information (for example, temperature information obtained from an electronic thermometer) to the article. Therefore, when the function of the recording medium is realized in the recording unit of the IC tag attached to the article, the recording unit of the IC tag must be additionally writable in order to record temperature information. Furthermore, the recording unit of the IC tag is inevitably provided with a large capacity as compared with the case where only the ID information of the article (that is, information including an identifier for identifying the article) is stored.

  As described above, an expensive IC tag is inevitably used as compared with an IC tag storing only ID information, and the number of expensive IC tags proportional to the number of objects to be attached with an IC tag is used. As a result, an inexpensive temperature management system cannot be provided.

  Also, even when taking measures to collect and reuse expensive IC tags at the final stage of the transportation process, it requires cost and labor to do so, and as a result, an inexpensive temperature management system cannot be provided. .

  The present invention has been made based on the above-described problem, and does not attach a recording medium for electronically recording physical information (for example, temperature information) of an article to the article, and stores only the ID information. And an article management system and article management method using the detection material.

  In order to solve the above-mentioned problem, the present invention includes an IC tag reader that reads ID information from an IC tag that records ID information for identifying an article, and the IC tag and the detection material are An article management system for managing a physical change of an attached article, the means for measuring the color indicated by the detection material, the means for converting the color indicated by the detected detection material into physical information, and the converted ID physical data is recorded on ID physical data forming means for forming ID physical data by associating the physical information with the ID information read by the IC tag reader, and on article data management means existing outside the IC tag. ID physical data recording means.

  According to a second aspect of the present invention, in the first aspect of the invention, the ID physical data forming unit associates the physical information, the ID information, the location where the ID information is read, and the time when the ID information is read. ID physical data is formed.

  According to a third aspect of the present invention, in the first aspect of the invention, the ID physical data forming unit associates the physical information, the ID information, and a location or time at which the ID information is read. ID physical data is formed.

  Invention of Claim 4 shows the change of a color in the invention in any one of Claim 1 thru | or 3, when the said detection material deviates from the physical management conditions defined with respect to the said articles | goods, The color change is irreversible.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the IC tag and the detection material are integrally formed.

  The invention according to claim 6 uses an IC tag in which ID information for identifying an article is recorded and an IC tag reader that reads the ID information from the IC tag, and performs physical changes of the article to which the IC tag and the detection material are attached. An article management method for managing, comprising: a step of measuring a color indicated by the detection material; a step of converting a color indicated by the measured detection material into physical information; and the converted physical information and the IC tag reader. An ID physical data forming step for forming ID physical data by associating the read ID information; and an ID physical data recording step for recording the ID physical data to the article data management means existing outside the IC tag. It is characterized by having.

  The invention according to claim 7 is the invention according to claim 6, wherein the ID physical data forming step includes the physical information, the ID information, a place where the ID information is read, and a time when the ID information is read. The associated ID physical data is formed.

  The invention according to claim 8 is the invention according to claim 6, wherein in the ID physical data forming step, the physical information, the ID information, and a location or time at which the ID information is read are selected. The associated ID physical data is formed.

  The invention according to claim 9 shows a change in color in the invention according to any one of claims 6 to 8 when the detection material deviates from physical management conditions defined for the article, A detection material whose color change is irreversible is employed.

  According to a tenth aspect of the present invention, in the invention according to any of the sixth to ninth aspects, a tag in which the IC tag and the detection material are integrally formed is attached to an article.

  According to the first and sixth aspects of the present invention, the physical information of the article is recorded using an IC tag storing only ID information without attaching a recording medium for electronically recording the physical information of the article to the article. Can be managed.

  According to the second and seventh aspects of the present invention, data relating the physical information and the ID information to the location where the ID information is read and the time can be recorded in the external article data management means.

  According to the third and eighth aspects of the present invention, data relating the physical information and the ID information to the location or time when the ID information is read can be recorded in the external article data management means.

  According to the fourth and ninth aspects of the invention, the result of the color change of the detection material can be maintained.

  According to the fifth and tenth aspects of the present invention, the IC tag and the detection material can be simultaneously attached to an article.

  More specifically, in the invention according to any one of claims 1 to 3, it is determined based on the physical information whether the physical change range to which the article is exposed is suitable as a physical change range to be stored. In addition, a means for adding the determined result to the ID physical data may be included. That is, since the determination result can be recorded in an external article data management means, the determination result can be acquired regardless of the position of the IC tag (that is, the position of the article).

  In the invention according to any one of claims 6 to 8, it is determined based on the physical information whether the physical change range to which the article is exposed is suitable as a physical change range to be stored, and the result of the determination is A step of adding to the ID physical data may be included. That is, since the determination result can be recorded in an external article data management means, the determination result can be acquired regardless of the position of the IC tag (that is, the position of the article).

  As described above, according to the first and sixth aspects of the invention, an inexpensive article management system using an IC tag that stores only ID information can be provided.

  According to the second and seventh aspects of the present invention, the location and time relating to the article can be acquired regardless of the position of the IC tag (that is, the position of the article).

  According to the third and eighth aspects of the invention, it is possible to acquire the location or time relating to the article regardless of the position of the IC tag (that is, the position of the article).

  According to the fourth and ninth aspects of the present invention, it is possible to detect that the physical management condition is deviated even after the time deviates from the physical management condition.

  According to the fifth and tenth aspects of the present invention, the operation for acquiring the ID information from the IC tag and the operation for acquiring the physical information from the detection material can be easily and reliably performed.

  These can contribute to the article management service field.

  The apparatus configuration of the article management system in the present embodiment will be described with reference to FIG.

  The apparatus configuration of the article management system in FIG. 1 is that information is received from the IC tag 101 and the IC tag 101 to which the article 1 to be managed, the detection material (the member that detects and changes the color of the physical change; another name is an indicator) is applied. IC tag reader 2 for reading, color meter 3 for measuring color, general computer (for example, personal computer) 4 equipped with IC tag reader 2 and color meter 3, and color and physical change stored in computer 4 (for example, Correspondence table T showing correspondence between temperature change, humidity change, and ultraviolet change), network 5 to which computer 4 is connected 5, article management center 6 connected to network 5, article data management means provided in article management center 6 (For example, an article management database) 601.

  In the following description, the temperature indicating material is used as the detection material, and the temperature change is used as the physical change. In addition, although the temperature indicating material and the detection material may be distinguished, the temperature indicating material is also treated as a kind of the detection material in the following description.

  An IC tag 101 in which ID information of the article 1 is recorded is attached to the article 1 in FIG. The IC tag is also called an RFID (Radio Frequency Identification), an RF (Radio Frequency) tag, or an electronic tag. The IC tag 101 in FIG. 1 has a sheet shape, and a temperature indicating material is applied on the surface. Of course, an embodiment in which a seal including a temperature indicating material is attached to the IC tag so that the IC tag is not peeled off may be used.

  The temperature indicating material is a material exhibiting a different color depending on the temperature, and is also referred to as a thermochromic material, and is marketed in various commercial forms from several manufacturers in Japan. The temperature indicating material applied to the IC tag 101 in the present embodiment needs to exhibit different colors at least in a temperature range in which the article 1 should be stored and a temperature range that deviates from the temperature range.

  In the present embodiment, when the temperature of the exposed article 1 shifts to a temperature range that deviates from the temperature range in which the article 1 should be stored (ie, the physical quantity range), the color of the temperature indicating material applied to the IC tag 101 Change, but the change is irreversible. That is, once the temperature deviates from the temperature range where the article 1 should be stored, and then returns to the temperature range where the article 1 should be stored, the color of the temperature indicating material applied to the IC tag 101 is It does not return to the color that indicates the temperature range to be used. Therefore, the temperature indicating material whose color change is irreversible can maintain the result of the color change.

  In the present embodiment, the ID information recorded on the IC tag 101 is read by the IC tag reader 2, and the color of the temperature indicating material applied to the IC tag 101 is measured by the colorimeter 3 when the ID information is read. .

  Of course, a measuring instrument called a spectrocolorimeter may be used instead of the colorimeter. Colorimeters and spectrocolorimeters are devices that include an illumination light source and a light receiver, measure the reflected light by irradiating the light from the illumination light source onto the material, and measure the color of the material. It is commercially available from these manufacturers.

  A color meter 3 in FIG. 1 is an apparatus for measuring a target color change of the temperature indicating material. In addition, the following can be considered as an apparatus configuration for measuring the target color change of the temperature indicating material.

  An apparatus configuration using a combination of a light emitting diode that emits light of a specific wavelength suitable for the purpose as an illumination light source and a photodiode that detects light of a specific wavelength suitable for the purpose as a light receiver may be used.

  A configuration may be used in which a strobe light source and a camera instead of the light receiver are used as the illumination light source, and a color sample (color chart) that preliminarily indicates a color change due to the temperature of the temperature indicating material is photographed by the camera. In the case of this configuration, temperature information indicated by the color of the temperature indicating material can be obtained from the captured image by a colorimetric method.

  A product in which a pre-recorded number appears on the surface of the temperature indicating material to indicate the temperature along with the change of the color of the temperature indicating material may be used. When such a product is used, a white light source having a sufficient amount of light as an illumination light source and a camera in place of the light receiver may be used, and the temperature information is read by image processing from the captured image to obtain temperature information. be able to.

  Information on the color of the temperature indicating material applied to the IC tag 101 measured by the color meter 3 is indicated by the color exhibited by the temperature indicating material by referring to the correspondence table T indicating the correspondence relationship between the color and the temperature by the computer 4. It is converted into information relating to temperature, and is recorded as data in association with the ID information read by the IC tag reader 2.

  The correspondence table T may be provided in the computer 4 itself, or may be stored in an external database to which the computer 4 can be connected. Further, data (hereinafter referred to as ID physical data) in which the read ID information and physical information such as temperature information are associated may be recorded in the computer 4 for a long period of time. It may be transferred to an external database and recorded.

  For example, in FIG. 1, the ID physical data is recorded in the article management database 601 in the external article management center 6 via the network 5.

  Here, a method of converting the color exhibited by the temperature indicating material attached to the article into temperature information will be described with reference to FIG. In the following description, the method of measuring the color with the color meter 3 is that the temperature of the IC tag 101 attached to the article 1 is irradiated with light and the human eye has the light reflected from the temperature indicating material. In this method, tristimulus values are photoelectrically read directly through a color filter that is close in sensitivity to red, green, and blue.

  First, tristimulus values corresponding to the read color information, red, green, and blue, are once recorded in the computer 4 as numerical values. Assume that the computer 4 has a corresponding curve (or correspondence table) G indicating the correspondence between color information (that is, tristimulus values corresponding to red, green, and blue) and temperature.

  Then, the numerical values of the tristimulus values corresponding to the read color information red, green, and blue are converted into temperature information using the corresponding curve (or correspondence table) G.

  It should be noted that intermediate temperature values that do not completely match the temperature indicated on the corresponding curve (or correspondence table) G are interpolated from the previous and subsequent temperatures indicated on the corresponding curve (or correspondence table) G. Thus, a closer temperature value can be obtained.

  Further, ID information recorded on the IC tag 101 attached to the article 1 requiring temperature management, and temperature information obtained by conversion from the color indicated by the temperature indicating material of the IC tag 101 attached to the article 1 A method of associating (linking) these will be described below.

  When the IC tag reader reads the ID information, even if the IC tag reader reads the ID information again for a certain time from the same point, the article 1 is counted as one. The certain time is set to be shorter than the time until the next different article arrives after the article 1.

  Starting from the point in time when the IC tag reader reads the ID information, the ID information reaches the computer 4 and is recorded, and then the computer 4 is attached to the article by the connected colorimeter 3. The measurement of the color indicated by the temperature indicating material is started.

  The computer 4 converts the numerical values of the tristimulus values corresponding to the red, green and blue color information read by the colorimeter 3 into temperature information, and sets the already recorded ID information and the temperature information as a set. Generate data.

  As described above, the ID information recorded on the IC tag attached to the article requiring temperature management is associated with the temperature information obtained by conversion from the color indicated by the temperature indicator attached to the article ( Associate).

  In addition, the following can be considered as information added to the data (namely, ID physical data) which linked | related ID information and temperature information.

  Information about the time when the ID information is read may be added to the ID physical data. For example, as a method of adding information related to the time when the ID information is read to the data, there is a method of adding information related to the time given by the clock device built in the computer 4 in FIG. 1 to the ID physical data.

  For the ID physical data, the location where the ID information is read, the work content at that location and the information about the person in charge of the work are stored in the computer 4 in FIG. 1, and the location where the ID information is read, the work content at the location, All or part of the information about the person in charge of the work may be added.

  In addition, as a method of adding information about the place where the ID information is read and the work content at the place to the ID physical data, for example, the place where the ID information of the article 1 in FIG. There is a method in which information related to work contents is stored in the computer 4 in advance and added to the ID physical data immediately after the ID information is read.

  In addition, as a method of adding information about a worker in charge to the ID physical data, for example, when the worker starts a work using the computer 4 in FIG. 1, the name or ID of the worker There is a method of inputting information about the person in charge of the work to the computer 4 and adding it to the ID physical data immediately after reading the ID information of the article 1.

  For example, information (ie, location and work) provided in the computer 4 and input by means (keyboard device, display device, etc.) for inputting information about the place where the ID information is read, the work content at that place, and information about the person in charge of the work. Information regarding contents) may be stored in the computer 4.

  Furthermore, a result of determining whether or not the temperature range to which the article is exposed is suitable as a temperature range to be stored may be added to the ID physical data based on the temperature information. For example, a program for determining whether or not the temperature range to which the article is exposed is suitable as a temperature range to be stored is stored in the computer 4 in FIG. 1 and executed, and information on the suitability is added. May be. Information on the temperature range in which the article 1 should be stored is included in information provided by the manufacturer or importer of the article 1 such as a label attached to the article 1 and can be easily obtained.

  A procedure for generating ID physical data will be described with reference to FIG. In FIG. 3, the description of the same reference numerals as those in FIGS. 1 and 2 is omitted.

  That is, the procedure in FIG. 3 includes ID information recorded on an IC tag attached to an article requiring temperature management, and temperature information obtained by conversion from the color indicated by the temperature indicator attached to the article. , And ID physical data is generated by setting ID information, temperature information, reading time, location, work content, worker, and temperature range suitability.

  First, the person in charge of work U inputs the location, work content, information about the person in charge of work, and the like, and information on the temperature range in which the articles to be managed should be stored into the computer 4 (M11).

  Next, the computer 4 records the location, work content, information on the person in charge of the work, etc., and information on the temperature range in which the articles to be managed should be stored (S11). For recording, an external storage device provided in the computer 4 may be used.

  Next, the IC tag reader 2 reads the ID information (S12).

  Next, the read ID information is transmitted to the computer 4 (M12).

  Next, the computer 4 records the ID information together with the time when the ID is read (S13).

  Next, the computer 4 instructs the colorimeter 3 to start measurement (M13).

  Next, the colorimeter 3 performs measurement (S14).

  Next, the colorimeter 3 transmits color information to the computer 4 (M14).

  Next, the computer 4 converts the received color information into temperature information (S15).

Next, the computer 4 determines whether or not the temperature range is to be stored based on the temperature information and the information on the temperature range to be stored (S16).
Then, ID physical data is generated with a set of ID information, temperature information, reading time, place, work content, work person in charge, and temperature range suitability (S17).

  An example of ID physical data generated by the computer 4 is indicated by reference sign D1 in FIG. The ID physical data may be recorded in the computer 4 for a long period of time, but may be transferred to a database outside the computer 4 (for example, the article management database 601 in FIG. 1) and recorded in the database.

  A computer program describing the above-described method related to the article management system may be implemented so as to access a memory or an external storage device that stores input / output data required for the method related to the article management system.

  As described above, in the present embodiment, when an IC tag and a temperature indicating material on which ID information of the article is recorded are attached to an article required for temperature management, the ID information is read using an IC tag reader. The color indicated by the temperature indicating material is measured, the color indicated by the temperature indicating material is converted into temperature information, and the temperature information and the ID information are linked and recorded outside the IC tag.

  Also, there is provided means for attaching an IC tag on which ID information of the article is recorded and a temperature indicating material to an article requiring temperature management, and measuring the color indicated by the temperature indicating material when the ID information is read by an IC tag reader. And a means for converting the color indicated by the temperature indicating material into temperature information, and the temperature information and the ID information are linked and recorded outside the IC tag.

  In the present embodiment, the temperature information, the ID information, and one or both of the information about the location and time at which the ID information is read are linked.

  In the present embodiment, the temperature indicating material exhibits a color change when deviating from the temperature management condition (that is, physical management condition; specific physical quantity value or physical quantity range for management) defined for the article, The change is irreversible.

  In the present embodiment, the IC tag and the temperature indicating material are integrated.

  Then, an IC tag that records the ID information of the article and a temperature indicator are attached to the article that requires temperature management, and when the ID information is read by an IC tag reader, the color indicated by the temperature indicator is measured, An article management system can be provided by including means for converting the color indicated by the temperature indicating material into temperature information and associating (associating) the temperature information with the ID information.

  Therefore, there is no need to attach a recording medium for electronically recording the temperature information of the article to the article, and an IC tag that stores only ID information and does not have a recording section that can be additionally written, or the recording capacity of the recording section is extremely small. An inexpensive article management system using an IC tag, that is, an inexpensive IC tag can be provided. Furthermore, physical information can be acquired only by means for measuring the detection material and color without using a dedicated sensor device such as an expensive electronic thermometer or electronic hygrometer.

  In the above description, with respect to the temperature of the article, a temperature indicating material is used as a detection material, and a temperature change is used as a physical change. For example, an ultraviolet detection material (a material that changes color when it receives a specific amount of ultraviolet light). ), It is also possible to manage the ultraviolet rays of the article using a correspondence table for converting the change in color of the ultraviolet ray detection material into the amount of ultraviolet rays.

[Example]
An example in the present embodiment will be described with reference to FIG. In addition, a present Example is used for the temperature management in the distribution process of goods. In FIG. 5, the description of the same reference numerals as those in FIG. 1 is omitted.

  In this embodiment, it is assumed that an IC tag 101 having a temperature indicating material coated on the surface thereof is attached to the article at the manufacturer of the article 1.

  Next, the article 1 to which the IC tag 101 is affixed is transported to the distribution center, and when it enters the distribution center, the ID information of the IC tag 101 is read by the IC tag reader 201 and the color of the temperature indicating material of the IC tag 101 is It is read by the colorimeter 301.

  Next, the computer 401 converts the color of the temperature indicating material read by the method shown in FIG. 2 into temperature information, and the ID information is converted into the temperature information and the ID information by the method shown in FIG. The ID physical data 4011 to which information related to the location, time, work content, work person in charge, suitability of temperature range, etc. at the time of reading is added is sent to the external article management center 6 via the network 5. The ID physical data 4011 is recorded in the article management database 601.

  Next, when the article 1 to which the IC tag 101 is attached is picked (or shipped) at the distribution center, the ID information of the IC tag 101 is read by the IC tag reader 202 and the temperature indicating material of the IC tag 101 is also displayed. The color is read by the colorimeter 302.

  Next, the computer 402 converts the color of the temperature indicating material read by the method shown in FIG. 2 into temperature information, and reads the ID information by the method shown in FIG. 3 into the temperature information and the ID information. ID physical data 4021 to which information related to the location, time, work content, work person in charge, suitability of temperature range, etc. is added is sent to the external article management center 6 via the network 5. The ID physical data 4021 is recorded in the article management database 601.

  Next, when the article 1 to which the IC tag 101 is attached is stored in the retail store and inspected, the ID information of the IC tag 101 is similarly read by the IC tag reader 203 and the color of the temperature indicating material of the IC tag 101 is It is read by the color meter 303.

  Then, the computer 403 converts the color of the temperature indicating material read by the method shown in FIG. 2 into temperature information, and reads the ID information into the temperature information and the ID information by the method shown in FIG. ID physical data 4031 to which information related to the location, time, work content, work person in charge, suitability of temperature range, etc. is added is sent to the external article management center 6 via the network 5. The ID physical data 4031 is recorded in the article management database 601.

  As described above, the person who should manage the temperature of the same type of product as the article 1 obtains the ID information of the article 1, accesses the article management database 601, and the article based on the ID information of the article 1. Information on temperature management of 1 can be obtained. For example, it is possible to obtain information about the temperature management of the article 1 in a format such as symbols D2 to D4 in FIG.

  Further, a person who should manage the temperature of the same type of product as the article 1 obtains information on the temperature management of the article 1 in a format such as symbols D2 to D4 in FIG. Considering that there is a problem in the storage state at the distribution center, it is possible to take any measures to improve the temperature management during the distribution process of the products.

  Information on the temperature range in which the same type of product as the article 1 should be stored is included in the information provided by the manufacturer of the same type of product as the article 1 and can be easily obtained. For example, the information about the temperature range in which the product of the same type as the article 1 should be stored may be obtained from the information described on the product label of the same type of product as the article 1, or the manufacturer's article information database 701 Access may be made to obtain information about the temperature range in which products of the same type as the article 1 should be stored based on the ID information of the article 1.

  Although the present invention has been described in detail only for the specific examples described above, it is obvious to those skilled in the art that various changes and modifications can be made within the scope of the technical idea of the present invention. Such variations and modifications are naturally within the scope of the claims.

  For example, as a modification of the present embodiment, it is possible to manage the humidity of an article using a humidity detection material as a detection material and a correspondence table that converts a change in color of the humidity detection material into humidity.

  Further, instead of irradiating the detection material with the visible light and acquiring the color change, the management may be performed by irradiating the invisible light (for example, infrared rays) and acquiring the color change.

The apparatus block diagram of the article | item management system in this embodiment. The figure which shows the method to convert into the temperature information from the color which the temperature indicator attached to the articles | goods in this embodiment exhibits. The figure which shows the production | generation procedure regarding ID physical data in this embodiment. The figure which shows the example of ID physical data in this embodiment. The apparatus block diagram in a present Example. The figure which shows the example of ID physical data in a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Goods 101 ... IC tag to which the temperature indicating material is applied 2, 201, 202, 203 ... IC tag reader 3, 301, 302, 303 ... Color meter 4, 401, 402, 403 ... Computers 4011, 4021, 4031, D1 D4 ... ID physical data 5 ... Network 6 ... Article management center 601 ... Article management database 701 ... Article information database G ... Graph showing the relationship between tristimulus values and temperature U ... Worker in charge T ... Correspondence between color and temperature change Correspondence table to show

Claims (10)

An IC tag reader that reads the ID information from an IC tag that records ID information for identifying the article;
An article management system for managing physical changes of an article to which the IC tag and the detection material are attached,
Means for measuring the color indicated by the detection material;
Means for converting the color indicated by the measured detection material into physical information;
ID physical data forming means for associating the converted physical information with the ID information read by the IC tag reader to form ID physical data;
ID physical data recording means for recording the ID physical data to the article data management means existing outside the IC tag;
An article management system comprising: The ID physical data forming means
Forming ID physical data associating the physical information, the ID information, the location where the ID information was read, and the time when the ID information was read;
The article management system according to claim 1. The ID physical data forming means
Forming ID physical data associating the physical information, the ID information, and the location and time of reading the ID information;
The article management system according to claim 1. When the detection material deviates from the physical management conditions defined for the article, it shows a color change, and the color change is irreversible.
The article management system according to any one of claims 1 to 3. The IC tag and the detection material are integrally formed,
The article management system according to any one of claims 1 to 4, wherein Using an IC tag that records ID information for identifying an article and an IC tag reader that reads the ID information from the IC tag,
An article management method for managing a physical change of an article to which the IC tag and the detection material are attached,
Measuring the color of the detection material;
Converting the color of the measured detection material into physical information;
An ID physical data forming step of forming ID physical data by associating the converted physical information with the ID information read by the IC tag reader;
An ID physical data recording step of recording the ID physical data to an article data management means existing outside the IC tag;
An article management method characterized by comprising: The ID physical data forming step includes:
Forming ID physical data associating the physical information, the ID information, the location where the ID information was read, and the time when the ID information was read;
The article management method according to claim 6. The ID physical data forming step includes:
Forming ID physical data associating the physical information, the ID information, and the location and time of reading the ID information;
The article management method according to claim 6. When the detection material deviates from the physical management conditions defined for the article, a color change is shown, and the color change is irreversible.
The article management method according to any one of claims 6 to 8. Attaching a tag integrally formed with the IC tag and the detection material to an article,
The article management method according to any one of claims 6 to 9.

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