MATERIAL TRACKING AND MANAGEMENT SYSTEM USING ELECTRONIC TAGS

Abstract

A material tracking and management system is disclosed, which comprises multi electronic tags respectively connected to containers, a first electronic device, and a second electronic device. After the containers are placed in a storage environment, the first electronic device accesses each electronic tag to acquire a cold storage condition for the material accommodated in the container, and detects an ambient temperature of the storage environment through a temperature sensor. As a result, the first electronic device calculates an adjustment parameter for adjusting the expiration date based on the ambient temperature and the cold storage condition. After the container is transported to a user environment, the second electronic device accesses the electronic tag to acquire the adjustment parameter and a regular expiration date, thereby adjusting the regular expiration date to an instant expiration date.

Claims

1. A material tracking and management system using electronic tags, comprising: a plurality of electronic tags, being connected to a plurality of containers respectively, wherein each of the plurality of containers contains a material, and a memory of each of the plurality of electronic tags storing a basic material information; at least one first electronic device, being located together with the plurality of containers in a storage environment, and being configured to read/write the electronic tags; and at least one second electronic device, being located in a user environment, and being configured to read/write the electronic tags; wherein the basic material information comprises a material identification code, a lot number, a serial number, ingredients, a regular expiration date, and a cold storage condition; wherein after the plurality of containers are placed in the storage environment, the first electronic device reads from the plurality of electronic tags so as to determine the cold storage condition for the material correspondingly contained in each of the plurality of containers; wherein the first electronic device having a first microprocessor, and the first microprocessor comprises a first program including instructions for: controlling a temperature sensor assembly that is disposed in the storage environment to detect an ambient temperature in case of the plurality of containers being placed in the storage environment for a certain storage period; and calculating an adjustment parameter based on the cold storage condition and the ambient temperature, and writing the adjustment parameter into the memory of each of the plurality of electronic tags; wherein the second electronic device having a second microprocessor, and the second microprocessor comprises a second program including instructions for: controlling the second electronic device to read the plurality of electronic tags in case of the plurality of containers being moved to the user environment, so as to acquire the basic material information comprising the regular expiration date and the adjustment parameter; calculating an instant expiration date based on the regular expiration date and the adjustment parameter; and controlling the second electronic device to show the instant expiration date on a display.

2. The material tracking and management system of claim 1, wherein the storage environment is selected from a group consisting of a cargo storage space of a vehicle, a cargo storage space of a warehouse, a cargo storage space of a transportation cabinet, a cargo storage space of a freezer and a cargo storage space of a refrigerated cabinet.

3. The material tracking and management system of claim 1, wherein the material is selected from a group consisting of vaccine, bacterial strain, medicine, blood, specimen, seafood, wine, fruit or vegetable, frozen food and refrigerated food.

4. The material tracking and management system of claim 1, wherein the second program including instructions for: controlling the second electronic device to show a warning message on the display in case of based the instant expiration date being soon fall due.

5. The material tracking and management system of claim 1, wherein the first electronic device further comprises a GPS interface configured to monitor a GPS location information of the storage environment where the plurality of containers are located, and the first electronic device writing the GPS location information into the memory of each of the electronic tags.

6. The material tracking and management system of claim 1, wherein the temperature sensor assembly is integrated in the first electronic device.

7. The material tracking and management system of claim 1, wherein the first electronic device further having a memory for storing a look-up table (LUT), such that the first microprocessor is able to acquire the adjustment parameter by looking up the look-up table based on the cold storage condition and the ambient temperature.

8. The material tracking and management system of claim 1, wherein the temperature sensor assembly comprises at least one temperature sensor and an electronic circuit, and the electronic circuit comprising an energy harvesting IC configured to harvest an energy from an wireless signal that is emitted by the first electronic device, thereby providing an electric power to the electronic circuit and the temperature sensor.

9. The material tracking and management system of claim 1, wherein the temperature sensor assembly is a temperature sensor node based on Internet of Things (IoT) technology, and wirelessly communicating with the first electronic device.

10. The material tracking and management system of claim 9, wherein the first electronic device is coupled to the temperature sensor assembly via a wireless interface selected from a group consisting of NB-IoT interface, Bluetooth interface, ZigBee interface, Wimax interface, LoRA interface, and Wi-Fi interface.

11. The material tracking and management system of claim 1, wherein the electronic tag is a radio frequency identification (RFID) tag, an ultra-high frequency radio frequency identification (UHF RFID) tag or a near-field communication (NFC) tag.

12. The material tracking and management system of claim 1, wherein the first electronic device and the second electronic device are both selected from a group consisting of industrial computer, smart phone, tablet computer, laptop computer, desktop computer, and a point of sale system (POS).

13. The material tracking and management system of claim 1, further comprising a third electronic device that enables the first electronic device to, in the presence of a wireless network, transmit the basic material information and the expiration date calibration parameter which are written into the memory of of each of the electronic tags to the third electronic device, and that enables the second electronic device to receive the basic material information and the expiration date calibration parameter corresponding to each of the electronic tags from the third electronic device.

14. The material tracking and management system of claim 13, wherein the third electronic device is selected from a group consisting of cloud database, cloud server, cloud computing device, and cloud hard drive.

15. A material tracking management system using electronic tags, comprising: a plurality of electronic tags, being connected to a plurality of containers respectively, wherein each of the plurality of container contains a material, and a memory of each of the plurality of electronic tags storing a basic material information; at least one first electronic device, being located together with the plurality of containers in a storage environment, and being configured to read/write the electronic tags; and at least one second electronic device, being located in a user environment, and configured to read/write the electronic tags; wherein the basic material information comprises a material identification code, a lot number, a serial number, ingredients, a regular expiration date, and a cold storage condition; wherein after the plurality of containers are placed in the storage environment, the first electronic device reads from the plurality of electronic tag so as to determine the cold storage condition for the material correspondingly contained in each of the plurality of containers; wherein the first electronic device having a first microprocessor, and the first microprocessor comprises a first program including instructions for: controlling a temperature sensor assembly that is disposed in the storage environment to detect an ambient temperature in case of the plurality of containers being placed in the storage environment for a certain storage period; and writing a data of ambient temperature into the memory of each of the electronic tags; wherein the second electronic device having a second microprocessor, and the second microprocessor comprises a second program including instructions for: controlling the second electronic device to read the plurality of electronic tags in case of the plurality of containers being moved to the user environment, so as to acquire the data of ambient temperature and the basic material information comprising the regular expiration date and the adjustment parameter; calculating an instant expiration date based on the regular expiration date and the data of ambient temperature; and controlling the second electronic device to show the instant expiration date on a display.

16. The material tracking management system of claim 15, wherein the storage environment is selected from a group consisting of a cargo storage space of a vehicle, a cargo storage space of a warehouse, a cargo storage space of a transportation cabinet, a cargo storage space of a freezer and a cargo storage space of a refrigerated cabinet.

17. The material tracking and management system of claim 15, wherein the material is selected from a group consisting of vaccine, bacterial strain, medicine, blood, specimen, seafood, wine, fruit or vegetable, frozen food and refrigerated food.

18. The material tracking and management system of claim 15, wherein the first electronic device further comprises a GPS interface configured to monitor a GPS location information of the storage environment where the plurality of containers are located, and the first electronic device writing the GPS location information into the memory of each of the electronic tags.

19. The material tracking and management system of claim 15, wherein the second program including instructions for: controlling the second electronic device to show a warning message on the display in case of based the instant expiration date being soon fall due.

20. The material tracking and management system of claim 15, wherein the temperature sensor assembly is integrated in the first electronic device.

21. The material tracking and management system of claim 15, wherein the first electronic device further having a memory for storing a look-up table (LUT), such that the first microprocessor is able to acquire the adjustment parameter by looking up the look-up table based on the cold storage condition and the ambient temperature.

22. The material tracking and management system of claim 15, wherein the temperature sensor assembly comprises at least one temperature sensor and an electronic circuit, and the electronic circuit comprising an energy harvesting IC configured to harvest an energy from an wireless signal that is emitted by the first electronic device, thereby providing an electric power to the electronic circuit and the temperature sensor.

23. The material tracking and management system of claim 15, wherein the temperature sensor assembly is a temperature sensor node based on Internet of Things (IoT) technology, and wirelessly communicating with the first electronic device.

24. The material tracking and management system of claim 23, wherein the first electronic device is coupled to the temperature sensor assembly via a wireless interface selected from a group consisting of NB-IoT interface, Bluetooth interface, ZigBee interface, Wimax interface, LoRA interface, and Wi-Fi interface.

25. The material tracking and management system of claim 15, wherein the electronic tag is a radio frequency identification (RFID) tag, an ultra-high frequency radio frequency identification (UHF RFID) tag or a near-field communication (NFC) tag.

26. The material tracking and management system of claim 15, wherein the first electronic device and the second electronic device are both selected from a group consisting of industrial computer, smart phone, tablet computer, laptop computer, desktop computer, and a point of sale system (POS).

27. The material tracking and management system of claim 15, further comprising a third electronic device that enables the first electronic device to, in the presence of a wireless network, transmit the basic material information and the expiration date calibration parameter which are written into the memory of each of the electronic tags to the third electronic device, and that enables the second electronic device to receive the basic material information and the expiration date calibration parameter corresponding to each of the electronic tags from the third electronic device.

28. The material tracking and management system of claim 27, wherein the third electronic device is selected from a group consisting of cloud database, cloud server, cloud computing device, and cloud hard drive.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The invention as well as a preferred mode of use and advantages thereof will be best understood by referring to the following detailed description of an illustrative embodiment in conjunction with the accompanying drawings, wherein:

[0044] FIG. 1 shows is an illustrative diagram of a material tracking and management system using electronic tags according to a first embodiment of the present invention;

[0045] FIG. 2 shows a block diagram of the material tracking and management system using electronic tags according to the first embodiment of the present invention;

[0046] FIG. 3 shows a schematic illustration of the display screen of the second electronic device;

[0047] FIG. 4 shows another schematic illustration of the display screen of the second electronic device;

[0048] FIG. 5 shows a schematic diagram of the connection for information transmission between one first electronic device and one third electronic device;

[0049] FIG. 6 shows a schematic diagram of the connection for information transmission between multiple first electronic devices and the third electronic device; and

[0050] FIG. 7 shows a block diagram of the material tracking and management system using electronic tags according to a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0051] To more clearly describe a material tracking and management system using electronic tags according to the present invention, embodiments of the present invention will be described in detail with reference to the attached drawings hereinafter.

First Embodiment

[0052] Referring to FIG. 1, there is shown an illustrative diagram of a material tracking and management system using electronic tags according to a first embodiment of the present invention. In addition, FIG. 2 illustrates a block diagram of the material tracking and management system using electronic tags according to the first embodiment of the present invention. As shown in FIGS. 1 and 2, in the first embodiment, a material tracking and management system 1 using electronic tags of the present invention mainly includes, but not limited to, a plurality of electronic tags 11, at least one first electronic device 12, and at least one second electronic device 13. Further, the plurality of electronic tags 11 are connected to a plurality of containers 2, respectively. The connection referred thereto may be either surface-attached or integrated. In general, each container 2 as described contains a material (for example, a vaccine), and a memory of each electronic tag 11 stores basic material information corresponding to the material. The basic material information includes, but not limited to, a material identification code, a lot number, a serial number, ingredients, a regular expiration date and a cold storage condition. For example, in a scenario where the material is a drug or a vaccine, the material identification code is a drug code.

[0053] To be more detailed, the at least one first electronic device 12 and the plurality of containers 2 are located in a storage environment at the same time. For example, the material contained in each container 2 is a vaccine. It should be understood that after the vaccine is produced by the manufacturer, it is transported with the assistance of a professional low-temperature logistics company to a designated location, such as a low-temperature warehouse, a hospital, or a vaccine injection site. Expectedly, during the process of vaccine transportation and storage, the cold storage condition of the storage environment is strictly required. Therefore, the storage environment may include, but not limited to, a cargo storage space of a vehicle, a cargo storage space of a warehouse, a cargo storage space of a transportation cabinet, a cargo storage space of a freezer, and a cargo storage space of a refrigerated cabinet.

[0054] As shown in FIGS. 1 and 2, the first electronic device 12 is placed together with the plurality of containers 2 in the storage environment at the same time, and is provided with an electronic tag read/write function. In particular, a computing unit 121 is provided in the first electronic device 12 of the present invention. In this design, after the plurality of containers 2 are placed in the storage environment (e.g., a cargo storage space of a transportation vehicle), the first electronic device 12 reads from the electronic tag 11 of each container 2, so as to determine the cold storage condition for the material contained in each container 2. Then, since the plurality of containers 2 are usually placed in the storage environment as described for a certain storage period, the first electronic device 12 is configured to receive an ambient temperature of the storage environment from a temperature sensor device 14. For example, the plurality of containers 2 are transported by a transportation vehicle from location A to location B for 3 hours.

[0055] Therefore, during the 3 hours of transportation, the first electronic device 12 acquires the ambient temperature in the storage environment. Thereafter, the computing unit 121 inside the first electronic device 12 performs an expiration date calibration and determination process based on the cold storage condition (obtained from the electronic tag 11) and the ambient temperature (obtained from the temperature sensing device 14). Then, when an expiration date calibration process is required to be performed, an expiration parameter is written into the memory of each electronic tag 11. Lastly, after at least one of the containers 2 is transported to the user environment as described, the second electronic device 13 reads from the electronic tag 11 corresponding to the container 2 to acquire the basic material information including, but not limited to, the regular expiration date and the expiration date calibration parameter, and then, displays an instant expiration date of the material contained in container 2 is on a display screen thereof.

[0056] For another example, after the plurality of containers 2 are transported to location B to be frozen for N hours. During the process of frozen storage, the first electronic device 12 acquires the ambient temperature in the storage environment. Accordingly, the computing unit 121 inside the first electronic device 12 performs the expiration date calibration and determination process based on the cold storage condition (obtained from the electronic tag 11) and the ambient temperature (obtained from the temperature sensing device 14). Thereafter, when the expiration date calibration process is required to be performed, the expiration date calibration parameter is written into the memory of each electronic tag 11. Lastly, after at least one of the containers 2 is transported to the user environment, the second electronic device 13 reads from the electronic tag 11 corresponding to the container 2 to acquire the basic material information including, but not limited to, the regular expiration date and the expiration date calibration parameter, and then displays the instant expiration date of the material contained in container 2 on the display screen.

[0057] In addition, as shown in FIG. 2, the first electronic device 12 is further provided with a GPS unit 123 used to record a GPS location of the storage environment where the plurality of containers 2 are located. Further, the first electronic device 12 writes the GPS location into the memory of the electronic tag 11. In other words, when the plurality of containers 2 are stored at location A, the GPS unit 123 records a GPS location of location A. Further, after the plurality of containers 2 are transported from location A to location B by the transportation vehicle, the GPS unit 123 records a GPS location of location B. Lastly, after the plurality of containers 2 are transported by the transportation vehicle from location B to a user end (such as a hospital), the GPS unit 123 records a GPS location of the user end.

[0058] FIGS. 3 and 4 schematically illustrate the display screen of the second electronic device 13. For example, the material contained in one of the containers 2 is a vaccine. As such, a medical staff operates the second electronic device 13 to access the electronic tag 11 corresponding to the container 2 during the process of using the vaccine. As shown in FIG. 3, after accessing the electronic tag 11, basic material information corresponding to the vaccine is displayed on the display screen of the second electronic device 13, which includes a drug code (i.e., a material identification code), a lot number, a serial number, ingredients, and a regular expiration date. It is to be noted that as shown in FIG. 4, after completing the access operation on the electronic tag 11, the second electronic device 13 acquires the expiration date calibration parameter written by the first electronic device 12 simultaneously. Accordingly, the second electronic device 13 can promptly calculate an instant expiration date of the vaccine according to the expiration date calibration parameter and the regular expiration date. Moreover, the second electronic device 13 further includes a warning unit 130, which displays an expiration date warning message on the display screen according to the instant expiration date, as illustrated in FIG. 4.

[0059] In particular, as illustrated in FIGS. 1 and 2, the first electronic device 12 is also provided with a cold storage condition-expiration date look-up table (LUT) 122 therein. The cold storage condition-expiration date LUT 122 as described is configured to store standard cold storage conditions and impacts caused by an ambient temperature change on the expiration date of the material (i.e., the change of the expiration date) recited in a product instruction (or specification) that is provided in a format of compressed data by a manufacturer. In this design, the computing unit 121 can perform material qualitive change determination based on the cold storage condition, the ambient temperature and the cold storage condition-expiration date LUT 122. It should be understood that the cold storage condition-expiration date LUT 122 is provided by the manufacturer. Table 1 below demonstrates the cold storage condition-expiration-date LUT 122 created for vaccines, for example.

TABLE-US-00001 TABLE 1 Cold Storage Manufacturer Product Name Condition Note BioNTech Comirnaty −60° C. | −80° C. It must be (BNT162b2) completely used within 120 hours as the cold storage condition changes from 2° C. to 8° C. AstraZeneca Vaxzevria 2° C. | 8° C. It must be (ChAdOx1-S) completely used within 6 hours as the cold storage condition changes from 9° C. to 25° C. Moderna Spikevax −15° C. | −25° C. It must be (mRNA-1273) completely used within 30 days as the cold storage condition changes from 2° C. to 8° C.

[0060] On the other hand, although FIG. 1 illustrates the first electronic device 12 as including a dedicated computer (i.e., a specific industrial purpose computer) and a RFID antenna, and illustrates the second electronic device 13 as a handheld electronic device with a touch screen. However, it should not be regarded that the first electronic device 12 and the second electronic device 13 are limited to the embodied aspects. When the present invention is practically applied, each of the first electronic device 12 and the second electronic device 13 may be an industrial computer with an electronic tag read/write function, a smart phone with an electronic tag read/write function, a tablet computer with an electronic tag read/write function, a laptop computer with an electronic tag read/write function, a desktop computer with an electronic tag read/write function, an integrated computer with an electronic tag read/write function, or a point of sale system (POS) with an electronic tag read/write function.

[0061] Further, it would be well known to electronic engineers who have been involved in the design and production of electronic tags over a long period of time that the electronic tag 11 illustrated in FIGS. 1 and 2 may be a radio frequency identification (RFID) tag, an ultra-high frequency radio frequency identification (UHF RFID) tag or a near-field communication (NFC) tag.

[0062] In addition, in an applicable embodiment, the temperature sensing device 14 illustrated in FIG. 1 is a temperature sensor and is integrated in the first electronic device 12 as described. Further, in another applicable embodiment, the temperature sensing device 14 and the first electronic device 12 shown in FIG. 1 are two independent devices, each of which may include at least one temperature sensor and an electronic circuit used to control the temperature sensor, and the electronic circuit is coupled to the first electronic device 12. In an applicable embodiment, the electronic circuit of the temperature sensing device 14 may include an energy harvesting IC. When the first electronic device 12 emits a radio wave, the energy harvesting IC is capable of harvesting energy via the radio wave, thereby providing required electric energy to a control IC in the electronic circuit and the temperature sensor device, so as to drive the temperature sensor to perform ambient temperature sensing.

[0063] In an applicable embodiment, as the cold storage space of the transportation vehicle is already provided with a temperature sensor module to monitor the ambient temperature, the temperature sensor module may also be directly coupled to the first electronic device 12 in a wired or wireless manner, so as to serve as the temperature sensing device 14 illustrated in FIG. 1.

[0064] Furthermore, in yest another applicable embodiment, the temperature sensing device 14 shown in FIG. 1 is a temperature sensor node based on Internet of Things (IoT) technology, and the first electronic device 12 is coupled with the temperature sensing device 14 via a wireless network. It would be well known to electronic engineers who have been involved in the design and production of IoT sensors over a long time that the temperature sensor node is usually designed as a small-volumed dongle, which includes an electronic circuit and at least one temperature sensor. The electronic circuit may include an energy harvesting IC. When the first electronic device 12 emits a radio wave, the energy harvesting IC is capable of harvesting energy via the radio wave, thereby providing required electric energy to the control IC in the electronic circuit and the temperature sensor, so as to drive the temperature sensor to perform ambient temperature sensing. After driving the temperature sensor to collect sensed data, the electronic circuit uploads the collected sensed data to an external electronic device via a wireless network of, for example, a NB-IoT gateway, a smartphone or a laptop computer of a data collection engineer, a local server, a cloud server, etc. In this way, the wireless network as described may be implemented by using an NB-IoT transmission interface, a Bluetooth transmission interface, a ZigBee transmission interface, a Wimax transmission interface, a LoRA transmission interface, a WiFi transmission interface, or an infrared transmission interface. Certainly, in some applicable embodiments, the first electronic device 12 and the temperature sensing device 14 may also be connected with each other in a wired manner, provided that the two devices may communicate with each other to implement signal transmission.

[0065] It should be noted that the material tracking and management system 1 using electronic tags of the present invention illustrated in FIGS. 1 and 2 further includes a third electronic device 15 provided in a third-party environment, for example, a cloud or a data forwarding end. In this design, the first electronic device 12 as described, in the presence of a wireless network (e.g., a WiFi, 4G, or 5G network), may transmit the basic material information and the expiration date calibration parameter which are written into the memory of each of the electronic tags 11 to the third electronic device 15. As such, the second electronic device 13 may receive the basic material information and the expiration date calibration parameter corresponding to each of the electronic tags 11 from the third electronic device 15. Therefore, it can be understood that the third electronic device 15 may be a cloud database, a cloud server, a cloud computing device, or a cloud hard drive.

[0066] It can be understood according to the description set forth above that the material tracking and management system using electronic tags in the present invention is mainly integrated in a warehouse management system (WMS), an enterprise resource planning (ERP) system with a success and failure factors of adopting (SAP) function, and/or a supervisory control and data acquisition (SCADA) system, which facilitates tracking and managing the expiration dates of food and/or pharmaceuticals thereof to effectively prevent the food and/or medicine which is expired beyond the expiration date from being misused, thereby achieving overall reduction in the occurrence probability of adverse drug events and/or food poisioning incidents. In other words, as illustrated in FIG. 2, the material contained in each container 2 is not limited to the vaccine. In some applicable embodiments, the material may be a bacterial strain, medicine, blood, specimen, seafood, wine, fruit or vegetable, frozen food, refrigerated food, and any other article with a special requirement for a cold storage temperature.

[0067] FIG. 5 is a schematic diagram of the connection for information communication between one first electronic device 12 and one third electronic device 15, and FIG. 6 is a schematic diagram of the connection for information communication between multiple first electronic devices 12 and one third electronic device 15. As illustrated in FIGS. 2 and 5, in an applicable embodiment, one single first electronic device 12 may be placed in the storage environment, so that the first electronic device 12 may be used to read/write the plurality of electronic tags 11 in the storage environment. Further, after completing the write operation of the electronic tags, the first electronic device 12, in the presence of the wireless network, transmits the written data to the third electronic device 15. On the other hand, as illustrated in FIGS. 2 and 6, in another applicable embodiment, multiple first electronic devices 12 may be placed in the storage environment, so that the first electronic devices 12 may be used to read/write the plurality of electronic tags 11 in that storage environment. Moreover, after completing the write operation on the electronic tags, the first electronic devices 12, in the presence of the wireless network, transmit the written data to the third electronic device 15.

Second Embodiment

[0068] Referring to FIG. 1 again, together with FIG. 7, FIG. 7 is a block diagram of the material tracking and management system 1 using electronic tags according to a second embodiment of the present invention. As illustrated in FIGS. 1 and 7, in the second embodiment, the material tracking and management system 1 using electronic tags of the present invention also includes a plurality of electronic tags 11, at least one first electronic device 12, and at least one of second electronic device 13. After comparing FIGS. 7 with 2, it should be understood that the first electronic device 12 of the second embodiment includes neither the aforementioned computing unit 121 for performing the expiration date calibration and determination process nor the cold storage condition-expiration date (LUT) 122, and instead, the second electronic device 13 is provided with the computing unit 131 for performing the expiration date calibration and determination process and the cold storage condition-expiration date (LUT) 132.

[0069] In this design, after the plurality of containers 2 are placed in the storage environment as described, the first electronic device 12 accesses the electronic tag 11 of each container 2 to determine the cold storage condition for the material contained in each container 2. Further, the first electronic device 12, during the storage period, receives an ambient temperature of the storage environment from the temperature sensing device 14, and then writes the sensed ambient temperature into the memory of each electronic tag 11. Further, after at least one of the containers 2 is transported to the user environment, the second electronic device 13 accesses the electronic tag 11 of each container 2 to receive the basic material information which includes the regular expiration date and the cold storage condition and the ambient temperature. Then, the computing unit 131 of the second electronic device 13 performs the expiration date calibration and determination process based on the cold storage condition and the ambient temperature. Thereafter, when an expiration date calibration is required to be performed, an expiration date calibration parameter is written into the memory of each of the electronic tags 11. Meanwhile, the second electronic device 13 accesses the electronic tag 11 of the container 2 to acquire the basic material information including the regular expiration date and the expiration date calibration parameter, and then, displays an instant expiration date of the material contained in the container 2 on the display screen.

[0070] Therefore, above descriptions, all embodiments and their functions of the material tracking and management system using electronic tags according to the present invention have been introduced completely and clearly. The above description is made on embodiments of the present invention. However, the embodiments are not intended to limit scope of the present invention, and all equivalent implementations or alterations within the spirit of the present invention still fall within the scope of the present invention.