KR20220168932A - Artificial intelligence-based method for predicting temperature of product inside the box using the temperature values measured from the passive multi-channel sensor tag - Google Patents

Abstract

The present invention provides an artificial intelligence-based method for predicting the temperature of a product in a fresh food distribution box. The artificial intelligence-based method for predicting the temperature of a product in a fresh food distribution box includes: a step of measuring three-channel temperature values comprising a temperature value of a space in which a fresh food distribution box is positioned, a maximum inner temperature value of the fresh food distribution box, and a minimum inner temperature value of the fresh food distribution box, by using a single passive sensor tag installed in the fresh food distribution box; a step of receiving the three-channel temperature values measured by a management server by passing from the passive sensor tag to a tag reader tagged in the passive sensor tag; and a step of predicting the temperature of a perishable product stored in the fresh food distribution box based on the three-channel temperature values by the management server. According to the present invention, the artificial intelligence-based method for predicting the temperature of a product in a fresh food distribution box can systematically monitor inner and outer environments of the box (temperature condition and the like) without opening the box in a series of cold chain processes.

Description

Artificial intelligence-based method for predicting room temperature of goods inside a fresh logistics box using temperature values measured from passive multi-channel sensor tags MEASURED FROM THE PASSIVE MULTI-CHANNEL SENSOR TAG}

The present invention relates to a method for predicting the room temperature of items inside a fresh distribution box, and more particularly, based on artificial intelligence for predicting the room temperature of items inside a fresh distribution box using temperature values measured from a passive multi-channel sensor tag. It relates to a method for predicting the room temperature of an article.

A low-temperature distribution box is a refrigerating container for the purpose of putting contents such as food together with ice to keep the contents fresh, prevent spoilage, and keep the contents cold at all times.

In general, a low-temperature distribution box is molded/manufactured in a predetermined volume using Styrofoam or has a heat insulation structure that blocks heat from the outside, such as forming a vacuum space in the middle.

Inside the box having such an insulation structure, an ice pack is enclosed along with the contents, and techniques for measuring the temperature inside the box piecemeal have been proposed to measure the temperature of the contents, but the inside of the box has different temperatures by location, and furthermore, the actual contents of the contents There has been a problem that there is a significant error between the temperature and the temperature inside the box.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to predict the room temperature of an article based on artificial intelligence to predict the room temperature of a product inside a fresh logistics box using temperature values measured from a passive multi-channel sensor tag. is to provide a way

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to solve these problems, according to an embodiment of the present invention, the temperature value of the space where the fresh logistics box is located and the highest internal temperature value of the fresh logistics box are located through a single passive sensor tag provided in the fresh logistics box. and measuring three-channel temperature values composed of the lowest internal temperature of the fresh distribution box; receiving the 3-channel temperature values measured through a management server from the passive sensor tag via a tag reader tagged to the passive sensor tag; and estimating the temperature of perishable goods stored inside the fresh distribution box based on the three-channel temperature values by the management server. is provided.

The passive sensor tag may include a sensor unit driven by power received from the tag reader to measure the three-channel temperature values; a sensor chip electrically connected to the sensor unit to receive the 3-channel temperature values; and an antenna unit that receives power and signals from the external reader and transmits the 3-channel temperature values to the tag reader, wherein the sensor unit is located at a first sensor and is physically separated from the first sensor. A second sensor is disposed, and a third sensor is disposed between the first sensor and the second sensor to be spaced apart from the first sensor and the second sensor, wherein the passive sensor tag includes the first sensor and the second sensor. It is folded based on the folding area located between the third sensors and is characterized in that it is installed on one side of the fresh distribution box.

The first sensor measures the temperature value of the space where the fresh distribution box is located, the second sensor measures the lowest internal temperature of the fresh distribution box, and the third sensor measures the highest internal temperature of the fresh distribution box. It is characterized by measuring the value.

According to the present invention, it is possible to systematically monitor the internal and external environment (temperature conditions, etc.) of the box without opening the box during a series of cold chain processes in which food, medicine, etc. are received by the supplier in the box and then delivered to the final consumer.

Furthermore, according to the present invention, the outdoor temperature outside the box, the lowest temperature inside the box, and the highest temperature inside the box can be measured with a single passive sensor tag.

In addition, according to the present invention, based on the temperature of the three channels, it is possible to accurately predict the actual temperature of the contents of the box, in particular, perishable goods such as foods, vaccines, and pharmaceuticals.

Effects according to the technical spirit of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a diagram for explaining a sensor tag according to some embodiments of the present invention.
2 is an exploded perspective view for explaining a smart fresh distribution box employing a sensor tag according to some embodiments of the present invention.
3 is a conceptual diagram for explaining a smart fresh distribution box employing a sensor tag according to some embodiments of the present invention.
4 is a cross-sectional view for explaining a smart fresh distribution box employing a sensor tag according to some embodiments of the present invention.
5 is a cross-sectional view for explaining a smart fresh distribution box employing a sensor tag according to some other embodiments of the present invention.
6 is a diagram showing a temperature management system employing a sensor tag according to some embodiments of the present invention by way of example.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, only the present embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

Also, in this specification, the singular form may also include the plural form unless otherwise specified in the phrase. As used herein, "comprises" and/or "comprising" means that a stated component, step, operation, and/or element is present in the presence of one or more other components, steps, operations, and/or elements. or do not rule out additions.

The sensor tag of the present invention is a passive type sensor tag not equipped with its own power source (for example, a battery), and a single sensor tag can perform a role of sensing and transmitting two or more sensed values to a reader. For example, the sensor tag may be implemented to include a plurality of temperature sensors for respectively measuring the temperatures of two or more different spaces.

1 is a view for explaining a sensor tag according to some embodiments of the present invention, and FIG. 2 is an exploded perspective view for explaining a smart fresh distribution box in which a sensor tag according to some embodiments of the present invention is employed. 3 is a conceptual diagram for explaining a smart fresh logistics box employing a sensor tag according to some embodiments of the present invention, and FIG. 4 is a conceptual diagram illustrating a smart fresh logistics box employing a sensor tag according to some embodiments of the present invention. 5 is a cross-sectional view for explaining a smart fresh distribution box employing a sensor tag according to some other embodiments of the present invention.

The method for predicting the room temperature of the goods in the fresh logistics box of the present invention is the air temperature value of the space where the fresh logistics box is located and the internal temperature of the fresh logistics box through a single passive sensor tag (1000) provided in the fresh logistics box (2000). Measuring 3-channel temperature values composed of the highest value and the lowest internal temperature value of the fresh logistics box, and passing the 3-channel temperature values measured through the management server from the passive sensor tag to a tag reader tagged to the passive sensor tag and estimating the temperature of perishable items stored inside the fresh distribution box based on the three-channel temperature values by a management server.

The passive sensor tag 1000 includes a sensor unit 1200 driven by power received from a tag reader and measuring the three-channel temperature values; a sensor chip 1500 electrically connected to the sensor unit to receive the 3-channel temperature values; and an antenna unit 1300 that receives power and signals from the external reader and transmits the three-channel temperature values to the tag reader, wherein the sensor unit includes a first sensor 1201, A second sensor 1202 disposed at a physically spaced position, and a third sensor 1203 disposed to be spaced apart from the first sensor and the second sensor between the first sensor and the second sensor, , The passive sensor tag is folded based on a folding area (FA) located between the first sensor and the third sensor, and is installed on one side of the fresh distribution box as shown in FIGS. 2 to 4 .

As shown in FIGS. 1 and 4 , the first sensor measures the temperature value of the space where the fresh distribution box is located, the second sensor measures the minimum internal temperature of the fresh distribution box, and the third The sensor measures the highest value of the internal temperature of the fresh distribution box.

Hereinafter, the configuration of the passive sensor tag will be described in more detail.

The passive multi-channel sensor tag 1000 includes a substrate 1100, a sensor unit 1200 disposed on the substrate and measuring two or more sensing values, and a sensor chip electrically connected to the sensor unit to receive two or more sensing values. 1500, an antenna unit 1300 that receives power and signals from an external reader (not shown) and transmits two or more sensed values of the sensor unit to an external reader, and the sensor unit, the sensor chip, and the antenna unit electrically It may include a circuit unit 1400 for connecting to and controlling.

The substrate 1100 is preferably a flexible printed circuit board (FPCB) so that the sensor tag 1000 is folded as will be described later and mounted in a fresh distribution box. For example, the substrate 1100 may be a flexible FPCB including polyimide (PI), polyethylene terephthalate (PET), glass epoxy (GE), and the like, and the FPCB may be as shown in the present invention. It is not limited and may be a substrate formed with various layer structures made of various materials such as FCCL (Flexible Copper Clad Laminate), COVERLAY, PREPREG, and KAPTON.

Meanwhile, in the present specification, a case in which the substrate 1100 is a flexible PCB is described as an example, but at least a portion of the substrate may be a hard PCB. For example, a region of the substrate 1100 where the antenna unit 1300 is located (first substrate region 1101) is a hard PCB, and a second substrate region 1102 extending from the first substrate region 1101 is It can also be a flexible PCB.

The antenna unit 1300 and/or the circuit unit 1400 may be a conductive thin film such as aluminum or copper patterned on the substrate 1100 by pressing, plating, corrosion, or the like. Furthermore, extension lines 1601, 1602, and 1603 extending from the circuit unit 1400 to each of the sensors 1201, 1202, and 1203, which will be described later, are also conductive formed together with the antenna unit 1300 and/or the circuit unit 1400. It may be a thin film.

The sensor unit 1200 may perform, for example, a temperature sensing role, but is not limited thereto. The sensor unit 1200 is driven by power supplied from an external reader (not shown) such as a smart phone through the antenna unit 1300, and may transmit a measured result to the reader through the antenna unit 1300.

The sensor unit 1200 may include two or more sensors physically spaced apart from each other. For example, the sensor unit 1200 may include first to third sensors 1201, 1202, and 1203 spaced apart from each other as shown, but in some cases, the first to third sensors 1201, 1202, 1203) may be omitted.

In some embodiments, the first sensor 1201 may measure the external temperature of the fresh distribution box, and the second and third sensors 1202 and 1203 may measure the internal temperature of the fresh distribution box. , but not limited thereto.

On the other hand, the sensor tag 1000 is located between the first sensor 1201 and the second sensor 1202, more specifically, between the first sensor 1201 and the third sensor 1203 (FA) It can be folded based on . As illustrated, the fold area FA may be located in the second substrate area 1102 where the second and third sensors 1202 and 1203 are disposed.

The antenna unit 1300 may include an antenna coil unit that generates induced electromotive force by collecting energy transmitted from a reader such as a smartphone, and the antenna coil unit includes one or more capacitors for frequency matching required for wireless power transmission and communication. may also be included.

The antenna unit 1300 transfers power supplied from a reader such as a smartphone through short-range wireless communication to the sensor unit 1200 when there is a request for temperature measurement from a reader such as a smartphone, and the sensor unit 1200 Sensed values such as the measured temperature may be transmitted to a reader such as a smart phone through short-range wireless communication. The short-distance wireless communication is implemented in various ways such as radio frequency identification (RFID), near field communication (NFC), Bluetooth, WiFi, Zig Bee, beacon, and LoRa (long range). Of course, the RFID may include concepts such as low-frequency identification (LFID), high-frequency identification (HFID), and ultrahigh-frequency identification (UHFID).

Meanwhile, both the sensor unit 1200 and the antenna unit 1300 may be disposed on the front surface of the substrate. That is, the first to third sensors 1201, 1202, and 1203 and the antenna unit 1300 may all be disposed on the same surface of the substrate and face the same direction. Accordingly, the first to third sensors 1201, 1202, and 1203 and the antenna unit 1300 face the same direction when the sensor tag 1000 is unfolded (ie, the state shown in FIG. 1), When the sensor tag 1000 is folded (that is, the state shown in FIGS. 4 to 6 ), the first sensor 1201 faces the second sensor 1202 and the third sensor 1203 in the opposite direction. can be placed.

On the other hand, the substrate 1100 covers at least a portion of at least one surface of the front surface of the substrate on which the first to third sensors 1201, 1202, and 1203 and the antenna unit 1300 are formed and the rear surface opposite to the front surface. A protective layer (not shown) may be formed. The protective layer is formed of, for example, a flexible material such as polyimide (PI) to protect the circuit unit 120, the sensor unit 1200, and the antenna unit 1300 on the substrate 1100 from external physical shock or moisture. can protect

Hereinafter, the configuration of the smart fresh distribution box employing the above-described passive sensor tag will be described in more detail.

2 to 4, the fresh distribution box 2000 includes an insulation box 2200 having an accommodation space therein and having the sensor tag 1000 described above on one side thereof, and covering the inner space of the insulation box. It may include an inner shell 2300 and an outer shell 2100 covering the outer surface of the insulation box.

The sensor tag is driven by power received from an external reader tagged to one side of the outer shell 2100, and the first sensor 1201 is placed between the outer shell 2100 and the outer surface of the insulation box 2200. (2000), the second sensor 1202 measures the inner lower temperature of the fresh distribution box 2000 between the inner skin 2300 and the inner surface of the insulation box 2200, and the third sensor 1203 measures the inner skin ( 2300) and the inner surface of the insulation box 2200 to measure the inner upper temperature of the fresh distribution box 2000.

Preferably, the outer shell 2100 and the inner shell 2300 may be formed of a material that is thinner than the single box 2200, has high thermal conductivity, and has high flexibility. More preferably, the shell 2100 is preferably made of a material through which electromagnetic fields can pass without interference in order to prevent tagging sensitivity loss or distance loss.

Referring to FIG. 5 , it can be seen that the inside of the box has the highest temperature at the upper part and the lowest temperature at the lower part. However, as shown in (a) of FIG. 5, the temperature difference between the upper and lower parts of the box becomes larger when the outside temperature is high, and the temperature difference between the upper and lower parts of the box becomes smaller when the outside temperature is low, as shown in (b) of FIG. , Accordingly, the method for predicting the room temperature of the goods in the fresh logistics box of the present invention is based on big data artificial intelligence learning, based on the outside temperature of the box, the upper temperature inside the box, and the lower temperature inside the box, the room temperature of the goods (G) By predicting, it is advantageous for the fresh logistics management process.

Referring to FIG. 6, the temperature management system includes at least one passive multi-channel sensor tag (1, 1', 1"), at least one tag reader (2), a management server (3), and a manager interface (4). ) In addition, the tag reader 2 may also be provided with a separate user interface for tagging for sensing, confirmation of sensing, and management of sensing value confirmation.

At least one of the tag reader 2, the management server 3, and the manager interface 4 can perform data communication with each other in real time through the information communication network 5. The information communication network 5 is, for example, a wired network or mobile radio communication network such as a local area network (LAN), a wide area network (WAN), or a value added network (VAN). network), a satellite communication network, Bluetooth, Wibro (Wireless Broadband Internet), HSDPA (High Speed Downlink Packet Access), and the like.

The management server 3 stores and processes the information input from the tag reader 2 and/or the manager interface 4, and responds to requests from each terminal to process the corresponding process without delay. A high-performance processor and A server device including a workstation or the like having a large storage space may be used.

The consumer interface and manager interface 4 of the tag reader 2 may be implemented in various smart devices such as, for example, smart phones, smart notes, tablet PCs, smart cameras, smart TVs, and wearable computers, and PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication)-2000, CDMA (Code Division Multiplex) Access)-2000, W-CDMA (W-Code Division Multiple Access), Wibro (Wireless Broadband Internet) terminal, etc. may be implemented by all types of handheld-based wireless communication devices, and web browsers (WEB Browser) may be implemented by a desktop, a notebook, a laptop, or the like.

Each terminal that physically implements the consumer interface and manager interface 4 of the tag reader 2 has a communication unit that communicates with the management server 3 to implement the above-described functions and a user interface for each function. A recording medium capable of being read and written by a computing device on which an application program displayed through is recorded may be mounted.

Each of the passive multi-channel sensor tags (1, 1', 1") in the temperature management system may have various numbers of sensors depending on the purpose and environment. For example, the first sensor tag (1) shown in FIG. ) or three sensors 11, 12, 13 like the second and third sensor tags 1' and 1". Also, some of the sensors may be sensors branched from the tag body, and some other sensors may be sensors disposed inside the tag body.

When the tag reader 2 is tagged with the sensor tag 1, the sensor tag 1 supplies power for driving the sensor tag 1 through the RF field energy generated from the antenna of the tag reader 2. can be obtained

The sensor unit of the sensor tag 1 obtains sensing values for each channel using the obtained power, and the MCU transfers the acquired sensing values for each channel to the NFC interface without parsing. Sensed values for each channel may be transmitted to the tag reader 2 .

In some embodiments, the tag reader 2 transmits the sensing values for each channel (ie, measured voltage values) to the management server 3, and the management server 3 transmits a preset voltage-temperature conversion table to the Based on this, the temperature information for each sensor tag/channel of the sensor tag may be calculated by parsing the sensed values for each channel, and the calculated temperature information for each channel may be transmitted to the tag reader 2 and/or the manager interface 4. The transmitted temperature information for each channel can be displayed through the user interface of the tag reader 2 or the manager interface 4 .

In some other embodiments, the tag reader 2 parses the sensing values for each channel received from the sensor tag 1 based on a preset voltage-temperature conversion table to obtain temperature information for each sensor tag/channel of the sensor tag. After calculating, the calculated temperature information for each channel can be displayed through the GUI of the tag reader 2. The calculated temperature information for each channel may be collected by the management server 3 and converted into big data through the manager interface 4 or the like.

Those skilled in the art related to the present embodiment will be able to understand that it may be implemented in a modified form within a range that does not deviate from the essential characteristics of the above description. Therefore, the disclosed methods are to be considered in an illustrative rather than a limiting sense. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope will be construed as being included in the present invention.

Claims (3)

3 channels consisting of the temperature value of the space where the fresh logistics box is located, the highest internal temperature value of the fresh logistics box, and the lowest internal temperature value of the fresh logistics box through a single passive sensor tag provided in the fresh logistics box measuring temperature values;
receiving the measured 3-channel temperature values from the passive sensor tag through a management server via a tag reader tagged to the passive sensor tag; and
Predicting, by the management server, the temperature of perishable goods stored inside the fresh distribution box based on the three-channel temperature values; predicting the room temperature of the goods in the fresh distribution box, including method.
According to claim 1,
The passive sensor tag,
a sensor unit driven by power received from the tag reader to measure the temperature values of the three channels;
a sensor chip electrically connected to the sensor unit to receive the 3-channel temperature values; and
An antenna unit receiving power and signals from the external reader and transmitting the 3-channel temperature values to the tag reader;
The sensor unit includes a first sensor, a second sensor disposed at a location physically separated from the first sensor, and disposed to be spaced apart from the first sensor and the second sensor between the first sensor and the second sensor. Including a third sensor,
The passive sensor tag is folded based on a folding area located between the first sensor and the third sensor and is installed on one side of the fresh logistics box.
According to claim 2,
The first sensor measures the temperature value of the space where the fresh distribution box is located, the second sensor measures the lowest internal temperature of the fresh distribution box, and the third sensor measures the highest internal temperature of the fresh distribution box. A method for predicting the room temperature of an item in a fresh logistics box, characterized in that the value is measured.

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