KR101978126B1 - Food vending machine - Google Patents

Abstract

The present invention relates to a food vending machine, and more specifically, relates to a food vending machine including a refrigerator and a heating cabinet. To this end, according to the present invention, a food purchase method using the food vending machine comprises: a step of, when an application installed on a user terminal is driven, displaying restaurants with the food vending machine installed; a step of receiving a selection of a restaurant and a menu from among the restaurants displayed on the user terminal; a step of performing a payment for the menu requested from a main server; a step wherein, when the payment is completed, the main server provides an order detail including the paid menu to a local server of the selected restaurant; a step wherein the local server determines the number of a food storage box, to which the food will be put, and provides the menu of the determined food storage box and the order detail to a printer installed in the kitchen of the restaurant; a step wherein, when the ordered food is put into the food storage box and the door is closed, the local server provides the number of the food storage box and the order detail to the main server; and a step wherein the main server provides the food storage box and the order detail to the user terminal. The present invention aims to allow a user to freely use a desired menu in a restaurant without being constrained by time.

Description

Food vending machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food vending machine, and more particularly, to a food vending machine including a refrigerator and a hot store.

Vending machines are unmanned vending machines using coins or cards. A vending machine is a machine that sells tickets, cigarettes, coffee, and other products. When a coin is inserted or a card is inserted, the desired item is automatically released.

The rapid increase in the number of vending machines is due to the emergence of a new distribution structure in response to changes in marketing environment such as mass production, mass consumption, and consumption pattern change caused by the transition from labor-intensive industrial structure to technology-intensive industrial society . In addition to the emergence of new distribution structures such as supermarkets and shopping centers, unmanned vending machines were inevitable due to rising labor costs, limited space, and convenience of purchase.

In a broad sense, it refers to a machine that sells goods, services, etc. by means of coins, banknotes, or cards, and in a narrow sense means a machine that automatically sells goods. Meanwhile, in recent years, economic growth has become a stimulus for the growth of the frozen processed food market, and consumer perceptions of food culture and frozen food are gradually changing. Prolonged working hours, increasing women's social advancement, and westernization trends in food and culture are increasing consumer demand for frozen foods in many urban centers.

More liberal economic policies, improved living standards, and improved manufacturing and distribution networks have increased purchasing power in urban residents. The growth point of the frozen processed food market is convenience and health.

Due to this lack of time, consumers prefer convenience packaged foods including frozen processed foods. Due to the dynamic and diverse lifestyles of young people, the demand for simple foods such as frozen ready-to-eat foods is expected to surge. Busy consumer lifestyles are expected to increase demand for ready-to-eat frozen ready-to-eat food and easy-to-cook processed food, so a new type of vending machine out of the existing vending machines is required.

In addition, companies and other commercial buildings usually operate canteens in the building, while canteens sell food only within a fixed time. Accordingly, when the predetermined time is exceeded, the restaurant in the cafeteria is discontinued and the user can not use the restaurant in the cafeteria if the user can eat the cafeteria within the predetermined time. As such, some restaurants, including the cafeteria, will only be open for a fixed period of time, so you need to be able to use the restaurant freely regardless of time.

Korea Registration No. 10-1821263 (Game Vending Machine) Korean Registration No. 10-1645691 (Vending Machine)

A problem to be solved by the present invention is to provide a method for freely using a desired menu in a restaurant without being limited by time.

Another problem to be solved by the present invention is to propose a method of ordering food in advance before arriving at a restaurant.

Another problem to be solved by the present invention is to propose a method in which a pre-ordered food is maintained in a warm state or a cold state.

To this end, a method of purchasing a meal using a meal vending machine of the present invention comprises the steps of: displaying a restaurant where a food vending machine is installed when an application installed in a user terminal is driven; Receiving a menu of any one of the restaurants and the meal menu of the restaurant where the user terminal is displayed; Performing payment for a meal menu requested from a main server; When the payment is completed, the main server provides an order history including a meal menu paid to a local server of the selected restaurant; Determining the number of the meal storage to which the local server will put the meal, and providing the determined menu of the meal storage and the order details to the printer installed in the kitchen of the restaurant; When the door is closed after putting the ordered meal into the meal storage box, the local server provides the number and order history of the inputted meal storage box to the main server; And the main server providing the user terminal with a meal storage box and order details.

To this end, the food automatic vending machine of the present invention is divided into at least two areas for use in a hot store or a refrigerator. A communication unit for receiving order information including a food menu from outside; A thermoelectric element formed in each region of the food container divided into two regions and heating or cooling each region; A first temperature sensor installed outside the food storage compartment and measuring an external temperature of the food storage compartment; A second temperature sensor installed inside the food storage box for measuring a temperature inside the food storage container; And a controller for controlling the current to be supplied to the thermoelectric element in the forward direction or the current in the reverse direction according to the temperature provided from the first temperature sensor or the second temperature sensor, The order information including unique information of the determined food storage box is provided as an output device installed in the kitchen, and if the ordered food is stored in the food storage box, the communication unit transmits the order details including the unique information of the food storage box And a control unit for controlling the control unit.

The food automatic vending machine according to the present invention uses one food storage box divided into a refrigerator and a warm ware depending on the type of food, and can be used only as a refrigerator alone or as a warm shop, if necessary. Also, since the food storage box can be easily used as a warm-up or a refrigerator by using a thermoelectric element and the temperature for food can be set in advance, there is an advantage that the temperature is not set for every sale.

In addition, when ordering using a user terminal, it is possible to preheat or precool the food storage box at the same time as ordering, so that the freshness of the food can be maintained and refrigeration and warming can be performed for each food storage box.

As described above, the food vending machine proposed in the present invention is advantageous in that it can be eaten regardless of time because the user can purchase the food after purchasing the food even when the restaurant is shut down.

1 is a view showing a food vending machine according to an embodiment of the present invention.
2 is a view showing a configuration of a food vending machine according to an embodiment of the present invention.
3 illustrates a method of supplying current to a thermoelectric element in a control unit according to an embodiment of the present invention.
4 is a diagram showing a cold / hot structure including a thermoelectric element.
FIG. 5 illustrates a procedure for purchasing food stored in a food vending machine according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The foregoing and further aspects of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

1 is a view showing a food vending machine according to an embodiment of the present invention. Hereinafter, a structure of a food vending machine according to an embodiment of the present invention will be described in detail with reference to FIG.

1, the food vending machine includes a food storage box, a display unit, a cash input unit, a card terminal, and an input unit. Of course, other configurations than the above-described configuration may be included in the food vending machine proposed in the present invention.

The food vending machine 100 has a hexahedral shape and includes a plurality of food storage boxes 102. Each food storage box stores food. Food is divided into warm food such as rice or stew and cold food such as side dish. To summarize, in general, meals consist of both hot and cold foods. In the present invention, one food storage box 102 is divided into a refrigerator and a hot store, a refrigerator stores cold food, and a warm store stores warm food. That is, one side of the food storage box 102 is used as a refrigerator, and the other side is used as a warm-up garbage. Therefore, one food storage box is distinguished such that the cold and warmth can not move with each other.

The display unit 104 is constituted by an LCD monitor or the like, and displays the amount of money currently input, the food to be purchased, and the purchase amount for the purchased food. In addition, the indication may represent the remaining balance purchased and, if necessary, information about the food for which the purchase was requested.

The cash input unit 106 is a portion into which cash is input, and cash includes not only bank notes but also coins. Therefore, the cash input unit 106 is composed of a bill insertion unit and a coin insertion unit. The cash input through the bill insertion slot and the coin insertion slot are summed up.

The card terminal 108 receives information such as a credit card, a check card, and a prepaid card, and proceeds with settlement. As described above, in the card terminal proposed in the present invention, not only a credit card but also a check card or a prepaid card can be settled.

The input unit 110 includes a plurality of buttons, and includes a button for selecting a food to be purchased, a button for selecting a food storage box into which the purchased food is to be inserted, a button for setting a temperature of the selected food storage box, And a button for opening the door of the storage box. In addition, various buttons may be formed. The input unit may comprise a touch screen or the like.

In addition, the food vending machine proposed in the present invention may include a temperature sensor and an LED. The LED is lit when the food is stored in the food storage, and is turned off if the food is not stored.

2 is a view showing a configuration of a food vending machine according to an embodiment of the present invention. Hereinafter, a configuration of a food vending machine according to an embodiment of the present invention will be described in detail with reference to FIG.

2, the food vending machine includes a control unit, an input unit, a storage unit, a temperature sensor, a thermoelectric element, and a display unit. Of course, other configurations than the above-described configuration may be included in the food vending machine proposed in the present invention.

The control unit 112 functions to control the configuration of the food vending machine. If the temperature supplied from the temperature sensor 114 is less than the set temperature, the controller 112 supplies the power to the thermoelectric element (supplying the forward current) (Reverse current supply).

For this, the controller 112 receives the temperature information from the temperature sensor 114 on a predetermined time basis, and compares the received temperature information with the preset temperature stored in the storage unit 116.

The input unit 110 receives various information for driving the food vending machine. The input unit 110 may include a touch pad and a keypad. When the input unit 110 is driven by the touch pad, the input unit may be formed integrally with the display unit.

The input unit 110 receives the temperature inside the food storage box 102. As described above, one food storage box is divided into a warm room and a refrigerator, and an internal temperature is input for each of the room and the refrigerator.

The internal temperature of the food storage box 102 is divided into a target temperature and a critical temperature. The target temperature is the internal temperature of the food storage box, and the critical temperature is the temperature at which power is supplied to the thermoelectric element. For example, if the target temperature is 15 占 폚 and the critical temperature is 4 占 폚, the thermoelectric element is driven at the next temperature. That is, when the current temperature falls below 11 ° C, the forward current is supplied to the thermoelectric element to raise the temperature of the food storage box 102 to the target temperature of 15 ° C, and then the current supply of the thermoelectric element is stopped.

When the current temperature rises above 19 ° C, a reverse current is supplied to the thermoelectric device to lower the food container temperature to the target temperature of 15 ° C, and then the current supply of the thermoelectric device is stopped.

As described above, the present invention sets two temperatures through the input unit 110 for each of a heating appliance and a refrigerator. Of course, the input unit 110 can input only the target temperature without inputting the critical temperature for each of the heating cabinet and the refrigerator. In this case, the critical temperature can be set in advance.

The storage unit 116 stores a program necessary for automatic food sales and stores temperature information inputted through the input unit 110. [ In addition, the storage unit 116 stores temperature information measured by the temperature sensor 116 and stores the driving time of the thermoelectric element, if necessary.

The temperature sensor 114 measures the temperature inside the food vending machine in a set cycle. In addition, the temperature sensor 114 measures the temperature outside the food vending machine in a set cycle. To this end, the temperature sensor 114 is installed not only inside the food vending machine but also outside. The temperature sensor 114 transfers the measured temperature to the control unit 112. A method of supplying current to the thermoelectric element using the temperature information transmitted from the control unit 112 will be described later.

The thermoelectric element 118 is installed on the rear surface of the food vending machine and receives a forward current or a reverse current according to a control command of the controller 112. When the thermoelectric element 118 receives the forward current, the thermoelectric element 118 transfers the heat to the closely attached food storage box. When the reverse current is supplied, the thermoelectric element 118 transfers the cool air to the closely attached food storage box.

The display unit 104 displays the internal temperature of the food vending machine measured by the temperature sensor 114. In addition, the display unit 104 displays various information such as information on the food purchased by the purchaser, price, and the like. In addition, the display unit 104 displays the target temperature and the critical temperature of the food storage box set by the administrator.

3 illustrates a method of supplying current to a thermoelectric element in a control unit according to an embodiment of the present invention. Hereinafter, a method of supplying current to the thermoelectric device according to an embodiment of the present invention will be described in detail with reference to FIG.

Referring to FIG. 3, the controller 112 supplies current to the thermoelectric element using the temperature information provided from the temperature sensor 114a provided in the food storage box as well as the temperature sensor 114b provided outside the food vending machine. The control unit 112 changes the temperature measurement period of the temperature sensor installed in the food storage box according to the temperature measured by the temperature sensor installed outside the food vending machine. If the temperature difference between the temperature measured by the temperature sensor (hereinafter referred to as 'first temperature sensor') 114b provided outside the food vending machine and the target temperature is less than the first threshold value, the temperature sensor (Hereinafter referred to as " 2 temperature sensor ") 114a is measured in a first measurement cycle unit, and the temperature difference between the temperature measured by the first temperature sensor and the target temperature is greater than or equal to the first threshold value and less than or equal to the second threshold value , The temperature measurement period of the second temperature sensor 114a is measured in the second measurement period unit. The second threshold value is relatively larger than the first set value, and the second measurement period is relatively shorter than the first measurement period. In other words, if the difference between the external temperature of the food vending machine and the target temperature is large, the internal temperature of the food container rapidly changes, shortening the measurement period of the internal temperature of the food container. If the difference between the external temperature of the food vending machine and the target temperature is small , The internal temperature of the food storage box does not change rapidly, so the measurement period of the internal temperature of the food storage container is lengthened. As described above, according to the present invention, the temperature measurement period of the temperature sensor installed in the food storage box changes according to the difference between the external temperature and the target temperature of the food vending machine.

Of course, the temperature measurement period of the first temperature sensor 114b is measured to be longer than the measurement period of the second temperature sensor 114a. For example, if the temperature measurement period of the first temperature sensor 114b is one time unit, the temperature measurement period of the first temperature sensor 114b is at least 15 minutes and at most 30 minutes.

The control unit 112 determines whether or not the current is supplied to the thermoelectric element and the supply direction according to the temperature information provided according to the temperature information providing period from the second temperature sensor 114a. When the temperature information is not provided from the second temperature sensor 114a in accordance with the temperature information providing period, the controller 112 stores the temperature information provided from the first temperature sensor 114b and the temperature information provided from the second temperature sensor 114a Determine whether the current supply of the thermoelectric element is supplied and the current supply direction using the supplied temperature information.

In addition, if the temperature information is not provided from the second temperature sensor 114a in accordance with the temperature information providing period, the controller 112 provides information to the administrator terminal so as to call attention to the manager.

Hereinafter, a method for determining whether the thermoelectric element is driven by the controller 112 when temperature information is not provided from the second temperature sensor 114a will be described.

The control unit 112 calculates the time required to raise the internal temperature of the food storage box from 11 ° C to 15 ° C using the thermoelectric element and the time required to lower the internal temperature of the food storage box from 19 ° C to 15 ° C And the like. Of course, the controller 112 stores the above information by matching with the external temperature of the food vending machine provided from the first temperature sensor 114b in this case. That is, the controller 112 stores information on the time required to raise or lower the internal temperature of the food container to or from the target temperature according to the external temperature of the food vending machine. Also, the controller 112 measures and stores the time required to supply the current to the thermoelectric element again in a state where the internal temperature of the food container is increased or decreased to the target temperature.

That is, the controller 112 instructs the storage unit 116 to store information on the time required for raising or lowering the internal temperature of the food container to the target temperature and the current supply period of the thermoelectric elements according to the external temperature of the food machine .

If the temperature information is not provided from the second temperature sensor 114a, the control unit 112 resets the temperature measurement period of the first temperature sensor 114b. That is, the controller 112 resets the temperature measurement period of the second temperature sensor 114a to a shorter value than the existing temperature measurement period.

The control unit 112 determines whether or not the current is supplied to the thermoelectric element and the supply direction by using the temperature information (or temperature) supplied from the first temperature sensor 114b. The control unit 112 instructs the thermoelectric element to supply the current and the direction of the current according to the external temperature supplied from the second temperature sensor 114a stored in the storage unit 116. [ As described above, since the present invention determines the current supply period and direction of the thermoelectric elements according to the temperature information provided from the first temperature sensor 114b, the temperature measurement period of the first temperature sensor 114b is set shorter than the conventional one .

Hereinafter, a case where temperature information is not provided by the first temperature sensor 114b and the second temperature sensor 114a will be described.

If no temperature information is provided from the first temperature sensor 114b and the second temperature sensor 114a, the controller 112 determines the time at which the temperature information was last received from the first temperature sensor 114b and the temperature at that time Check. The control unit 112 checks the temperature at the same time (for example, 7:00 am on the previous day) earlier than the confirmed time (7:00 am today), and calculates the temperature difference measured at two times.

The controller 112 determines a current supply period and a current supply direction to the thermoelectric element based on the temperature measured the previous day and the temperature measured today. That is, if the temperature measured today is 2 ° C lower than the temperature measured the previous day, the controller 112 determines the current supply period and the supply direction to the thermoelectric element on the assumption that the current temperature is lower than the previous day. Of course, the controller 112 determines the current supply period and the supply direction to the thermoelectric element on the basis of the temperature measured the day before, and calculates the average temperature of the corresponding period in the set period to reduce the error probability. Further, the current supply period and the supply direction are controlled by the thermoelectric element using the difference between the calculated average temperature and the measured temperature for the day. In addition, the controller 112 measures the average temperature of the unit time in the set period and estimates the current temperature based on the measured average temperature. Based on the estimated temperature, the current supply period and supply direction are determined by the thermoelectric element.

Table 1 below shows the case where the temperature of the first temperature sensor 114b measured at 7 o'clock today is 7 deg. C and the average of the temperatures measured by the first temperature sensor 114b at 7 o'clock during the set period is 9 deg. And the temperature by day of the day estimated by the control unit.

8 o'clock 9 o'clock 10:00 11 o'clock 12 o'clock 13:00 Average temperature (° C) 12 14 18 22 25 25 Today's estimated temperature (℃) 10 12 16 20 23 23

The control unit 112 previously calculates the present-day estimated temperature in advance and extracts a date having a temperature in the same time period as the calculated estimated daytime temperature. That is, the controller 112 cumulatively stores information on the current supply period and the supply direction to the thermoelectric elements according to the temperature measured by the first temperature sensor 114b per hour, and based on this information, A date having a temperature within the same or an error range is extracted and a current supply period and a supply direction are controlled by a thermoelectric element in the same manner as the period in which the current is supplied to the thermoelectric element at the extracted date.

As described above, the present invention proposes a method of supplying current to a thermoelectric element connected to a food storage using information already stored even though temperature information is not provided from the first temperature sensor 114b and the second temperature sensor 114a.

4 is a diagram showing a cold / hot structure including a thermoelectric element. Hereinafter, a cold / hot structure including a thermoelectric device according to an embodiment of the present invention will be described in detail with reference to FIG.

Referring to FIG. 4, the cold / hot structure including the thermoelectric elements includes a thermoelectric element, a heat sink, and a driving fan. Of course, other configurations than those described above may be included in the cold / hot structure including the thermoelectric elements proposed in the present invention.

When the thermoelectric element 118 is supplied with electric current, one side is heated and the other side is cooled. In other words, when the thermoelectric element 118 is supplied with current in the normal direction, one side is heated and the other side is cooled. Further, when the thermoelectric element 118 is supplied with current in the reverse direction, one side is cooled and the other side is heated. Therefore, depending on the direction of the electric current, the food container closely adhered to one side of the thermoelectric element can be heated or cooled. In addition, since the food storage box is divided into a warm room and a refrigerator, one thermoelectric element is also closely attached to the warm room portion, and one is closely attached to the refrigerator portion.

And is in close contact with the other side of the thermoelectric element on the heat sink 120, and radiates heat or cool air generated on the other side of the thermoelectric element to the outside. The heat sink 120 efficiently includes a plurality of heat radiating fins. The driving fan 122 is formed on the outside of the heat radiating plate to efficiently discharge heat or cool air emitted from the heat radiating plate 120 to the outside. The driving fan 122 rotates and discharges heat or cool air emitted from the heat sink to the outside.

As described above, the present invention supplies hot air to a hot plate using a thermoelectric element, and supplies cold air to the refrigerator.

FIG. 5 shows a procedure for storing and purchasing purchased food in a food vending machine according to an embodiment of the present invention. Hereinafter, a procedure for storing and purchasing purchased food in a food vending machine according to an embodiment of the present invention will be described in detail with reference to FIG.

The process of storing and purchasing the purchased food in the food vending machine is divided into a process of purchasing the food and a process of receiving the stored food. The procedure for storing and purchasing the purchased food in the food vending machine will be described below.

In step S500, the application installed in the user terminal is driven to display the restaurant where the food vending machine is installed. The application may display an adjacent restaurant based on the location information of the user terminal, or may display an adjacent restaurant based on the location inputted by the user.

In step S502, the user selects a restaurant where the food is to be ordered, and displays a menu that can be supported by the selected restaurant.

A menu is selected from the menu displayed in step S504, and payment for the selected menu is performed.

When the settlement is completed in step S506, the main server is delivered to the restaurant where the food vending machine is installed. The server provides information on the details of payment made to the user terminal. The details of the settlement include payment amount, restaurant information, menu information, order number, unique information of the user terminal, and information on the service available time.

In step S508, the local server (or the control unit of the local server) of the restaurant where the food vending machine is installed determines the food storage box into which the selected menu is to be inserted, instructs the warm storage of the food storage box and the refrigerator to be driven according to the selected menu, State. At the same time, the local server provides information on the payment made by the printer connected to the kitchen, and in particular, provides information on the food inlet. In addition, the printer connected to the kitchen prints a receipt containing the QR code that includes information about the details of the payment and details of the payment.

When the food preparation is completed in step S510, when the printed QR code is brought to the input part of the food vending machine, the food feeding opening is opened, food is put into the feeding opening, and the food storage box is closed. When the door of the food storage box is closed, the LED is used to indicate that food is stored in the food storage box.

In step S512, the local server notifies the main server that the food preparation is completed, and the main server notifies the user terminal that the food preparation is completed. The main server provides the number of the food dispenser, the type of food ordered, the price, the time the food was dispensed, the service time for the food ordered, and the authorization number.

Hereinafter, an operation performed by the control unit when the food is stored in the food storage box will be briefly described. When the door of the food container is closed, the control unit extracts the target temperature of the food container according to the food, from the storage unit, and maintains the temperature of the food container according to the extracted target temperature. To this end, the temperature of the food container is controlled using the external temperature of the food vending machine measured from the second temperature sensor, the internal temperature of the food container measured from the first temperature sensor, and the target temperature. As described above, the food storage box is generally divided into a warm room and a refrigerator. However, in some cases, the food room can be used only as a heater or as a refrigerator. Also, when the internal temperature of the food storage box is equal to the target temperature, the function of the warming-up refrigerator or the refrigerator is not performed.

Hereinafter, the purchaser will learn about the procedure of purchasing the food stored in the food storage box.

In step S520, when the user terminal accesses the food vending machine, the local server confirms whether there is a food container corresponding to the user terminal using the beacon.

In step S522, the local server notifies the user of the ordered food if there is a food container corresponding to the user terminal.

In step S524, if the user terminal selects the icon for meal among the displayed icons, the door of the food storage box is opened. The buyer takes out the food stored in the food storage box. When the door of the food container is opened, the local server stops supplying electric current to the thermoelectric element connected to the food container. As described above, the present invention proposes a method of purchasing food from a food vending machine in which food purchased by the purchaser is stored.

In addition, the user of the user terminal can open the door of the food storage box by directly inputting the authentication number into the food vending machine.

In connection with the present invention, an administrator managing a food vending machine can add or delete food menus in the administrator mode and modify the food prices. In addition, the administrator can register and edit food photographs in the manager mode, preheat the temperature of a certain number of food storage boxes in advance, or precool the refrigerator.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the present invention .

100: Food vending machine 102: Food storage box
104: Display section 106: Cash input port
108: card input port 110: input part
112: control unit 114: temperature sensor
116: storage unit 118: thermoelectric element
120: heat sink 122: drive fan

Claims (9)

delete delete delete delete A food storage container which is divided into at least two areas for use in a hot-store or a refrigerator, wherein each area is heated or cooled at a different temperature and the food is stored;
A communication unit for receiving order information including a food menu from outside;
A thermoelectric element formed in each region of the food container divided into two regions and heating or cooling each region;
A first temperature sensor installed outside the food storage compartment and measuring an external temperature of the food storage compartment;
A second temperature sensor installed inside the food storage box for measuring a temperature inside the food storage container; And
Controls the supply of the current in the forward direction or the supply of the current in the reverse direction to the thermoelectric element according to the temperature provided from the first temperature sensor or the second temperature sensor and determines the food container to be stored in the order history The control unit controls the communication unit to transmit the order details including the unique information of the food container when the ordered food is stored in the food container, And a control unit
Wherein,
If no temperature is provided from the first temperature sensor and the second temperature sensor,
Extracting a last temperature provided last from the first temperature sensor and a last time provided,
Extracting an average temperature of the provided temperature for a predetermined period with a previous date having the same time as the extracted last time,
Calculating a difference temperature which is a difference between the extracted average temperature and the last temperature,
Estimating a temperature in the future time zone using the temperature provided from the first temperature sensor provided after the same time during the set period and the difference temperature,
Extracts the estimated date and the previous date having the temperature in the time range within the error range,
And the current is supplied to the thermoelectric element in the same manner as the current supply direction and the current supply period of the thermoelectric element of the previous date extracted.
[7] The method of claim 5, wherein the controller opens the door of the food storage box corresponding to the order details when the user terminal storing the order information including the unique information of the food storage box approaches within a predetermined distance, A food vending machine with.
The method of claim 6, further comprising: providing a target temperature for stopping current supply to the thermoelectric element, a first threshold temperature for supplying a forward current to the thermoelectric element, and a second threshold temperature for supplying a reverse current to the thermoelectric element, The target temperature is a temperature between the first critical temperature and the second critical temperature,
Wherein the controller supplies a forward current to the thermoelectric element until the internal temperature of the food container reaches a target temperature, if the temperature provided from the second temperature sensor is below a first threshold temperature,
Wherein the controller supplies the reverse current to the thermoelectric element until the internal temperature of the food container reaches the target temperature, if the temperature provided from the second temperature sensor is equal to or higher than the second threshold temperature,
Wherein the target temperature is set differently according to the food stored in the food storage box.
8. The apparatus of claim 7,
Wherein the temperature measurement period of the second temperature sensor is set as a first measurement period when the temperature provided by the first temperature sensor is less than the target temperature and the first threshold,
Wherein the temperature measurement period of the second temperature sensor is set as a second measurement period when the temperature provided by the first temperature sensor is higher than or equal to the target temperature and the first threshold,
Wherein the second measurement period is relatively shorter than the first measurement period. delete

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