Intelligent milk box based on STM32 single-chip microcomputer

Abstract

The utility model relates to the technical field of dairy product storage equipment, in particular to an intelligent milk box based on an STM32 single chip microcomputer. The intelligent milk box comprises a storage box and a base. A storable space for storing milk is formed in the storage box; a bottom plate is arranged in the storage box, an embedded pressure sensing module is arranged in the bottom plate, and a horizontal supporting plate is mounted on the bottom plate; milk is placed on the supporting plate, and the pressure sensing module obtains a pressure signal; a semiconductor chilling plate is arranged along the inner side wall of the storage box, the cold face of the semiconductor chilling plate faces the storable space of the storage box, and the semiconductor chilling plate is used for cooling the storage box; a touch display module and a buzzer are arranged on the front surface of the base; an integrated master control circuit board is arranged in the base, and the master control circuit board comprises an STM32 single chip microcomputer, a communication module and a storage unit. Whether milk exists in the storage box or not can be judged conveniently, then the semiconductor chilling plate is controlled to conduct adaptive cooling, and therefore freshness retaining of fresh milk products is prolonged, and waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dairy product storage equipment, in particular to an intelligent milk box based on an STM32 single-chip microcomputer. Background Art

[0002] Today, as technology is constantly updated, the development of science and technology has become a general trend. The continuous replacement of electronics and computers is driving people's lives towards continuous intelligence.

[0003] The intelligence of community life is also a part of the application. With the improvement of people's living standards, people have higher requirements for food quality. Generally, users order fresh milk, and the milkman will deliver milk at irregular intervals every day according to the actual situation; the existing milk boxes are generally metal boxes with locks, but they do not have basic insulation and refrigeration functions. In hot weather, if the milk is not taken in time, it is easy to cause the milk to be stale or even deteriorate, resulting in milk waste. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes an intelligent milk box based on an STM32 single-chip microcomputer, which has refrigeration and heat preservation functions, prolongs the shelf life of dairy products, and facilitates the storage of dairy products.

[0005] The technical solution of the utility model is a smart milk box based on STM32 single chip microcomputer, comprising a storage box and a base;

[0006] The storage box is provided with an openable door panel, which is hinged to the storage box through a hinge; a storage space is formed in the storage box for storing milk;

[0007] A bottom plate is provided in the storage box, an embedded pressure sensing module is provided in the bottom plate, and a horizontal support plate is installed on the bottom plate; milk is placed on the support plate, and the pressure sensing module obtains a pressure signal;

[0008] A semiconductor cooling sheet is arranged along the inner wall of the storage box, with the cold surface of the semiconductor cooling sheet facing the storage space of the storage box, so as to cool the storage box;

[0009] A touch display module and a buzzer are arranged on the front of the base; an integrated main control circuit board is arranged inside the base, and the main control circuit board includes an STM32 single-chip microcomputer, a communication module and a storage unit.

[0010] Preferably, a first insulation layer is provided on the door panel; a second insulation layer is provided along the inner wall of the storage box; after the door panel is closed, the first insulation layer is engaged with the second insulation layer to form an insulation structure in the storable space of the storage box.

[0011] Preferably, the second heat insulation layer arranged along the inner wall of the storage box has openings reserved at the bottom plate and the installation position of the semiconductor refrigeration plate.

[0012] Preferably, a magnetic block is arranged on the door panel, and a magnetic lock block is correspondingly arranged on the shell of the storage box; the STM32 single chip microcomputer controls the power on and off of the magnetic lock block.

[0013] Preferably, a thermocouple and a lighting lamp are arranged at the top position of the inner wall of the storage box; the STM32 single chip microcomputer controls the lighting and shutting down of the lighting lamp; the thermocouple detects the temperature signal and transmits it to the STM32 single chip microcomputer, which is displayed through the display module.

[0014] Preferably, the display module has a built-in password lock module; a lock password is input in advance, and when a correct password is input, the STM32 microcontroller controls the magnetic lock block to power off and open the door panel; when an incorrect password is input, a buzzer alarm is sounded.

[0015] Preferably, the hot surface of the semiconductor refrigeration plate is in contact with the shell for heat exchange, and the shell is a heat-conducting metal part.

[0016] Preferably, a groove is opened on one side of the shell facing the outside of the storage box, and a plurality of through holes connected to the base are arranged at the bottom of the groove; an exhaust fan is installed along the groove; an STM32 single-chip microcomputer controls the start and stop of the exhaust fan; and the exhaust fan is turned on to exhaust air and dissipate heat from components inside the shell and the base.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] The utility model has a simple structure and is easy to use, and can conveniently judge whether there is milk in the storage box, and then control the semiconductor refrigeration piece to perform adaptive cooling, thereby extending the preservation of fresh milk products and avoiding waste.

[0019] In the utility model, the hot surface of the semiconductor refrigeration plate contacts the shell for heat exchange, and the shell is a heat-conducting metal part, which is convenient for heat dissipation; in addition, a groove is opened on the side of the shell facing the outside of the storage box, and a plurality of through holes connected to the base are arranged at the bottom of the groove; an exhaust fan is installed along the groove; an STM32 single-chip microcomputer controls the start and stop of the exhaust fan; when the exhaust fan is turned on, air is exhausted and heat is dissipated from the components inside the shell and the base, thereby solving the heat dissipation problem during the operation of the equipment.

[0020] The utility model is provided with a matching lock, and it is safer to control the door opening and closing by inputting a password. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the installation structure of the semiconductor refrigeration plate, the housing and the exhaust fan in the embodiment of the utility model.

[0023] Figure numerals: 1. storage box; 11. second insulation layer; 12. door panel; 13. first insulation layer; 14. magnetic block; 15. magnetic lock block; 16. shell; 17. through hole; 2. base; 3. display module; 4. buzzer; 5. bottom plate; 6. support plate; 7. exhaust fan; 8. semiconductor refrigeration plate. DETAILED DESCRIPTION

[0024] Example 1

[0025] like Figure 1 As shown, the utility model proposes an intelligent milk box based on the STM32 single-chip microcomputer, comprising a storage box 1 and a base 2;

[0026] The storage box 1 is provided with an openable door panel 12, which is hinged to the storage box 1 through a hinge; a storage space is formed in the storage box 1 for storing milk; a first heat insulation layer 13 is provided on the door panel 12; a second heat insulation layer 11 is provided along the inner wall of the storage box 1; after the door panel 12 is closed, the first heat insulation layer 13 is engaged with the second heat insulation layer 11, and a heat insulation structure is formed in the storage space of the storage box 1

[0027] A magnetic block 14 is arranged on the door panel 12, and a magnetic lock block 15 is correspondingly arranged on the shell 16 of the storage box 1; the STM32 single chip controls the power on and off of the magnetic lock block 15; the second insulation layer 11 arranged along the inner wall of the storage box 1 has openings reserved at the installation positions of the bottom plate 5 and the semiconductor refrigeration plate 8 to facilitate the installation of other equipment.

[0028] In this embodiment, a bottom plate 5 is provided in the storage box 1, an embedded pressure sensing module is provided in the bottom plate 5, and a horizontal support plate 6 is installed on the bottom plate 5; milk is placed on the support plate 6, and the pressure sensing module obtains a pressure signal and transmits it to the STM32 single chip microcomputer, and by detecting whether there is a pressure signal, it can be determined whether milk is stored in the storage box 1;

[0029] When storing milk, the STM32 single chip controls the semiconductor refrigeration chip 8 to cool down, and the cold surface of the semiconductor refrigeration chip 8 faces the storage space of the storage box 1, which is used to cool down the storage box 1; if there is no milk, there is no need for refrigeration to reduce the consumption of electricity.

[0030] In this embodiment, a thermocouple and a lighting lamp are arranged at the top position of the inner wall of the storage box 1; the STM32 single-chip computer controls the lighting lamp to be turned on and off; the thermocouple detects the temperature signal and transmits it to the STM32 single-chip computer, which is displayed through the display module 3; an elastic contact is arranged at the contact position where the storage box 1 and the door panel 12 are closed; when the door panel 12 is closed, the contact is closed, and the contact is connected to the power supply circuit of the STM32 controlled lighting lamp, and when the contact is opened, the power supply circuit is connected, and the lighting lamp is turned on for convenient lighting; when the contact is closed, the power supply circuit is disconnected, and the lighting lamp is turned off to save energy.

[0031] A touch-sensitive display module 3 and a buzzer 4 are arranged on the front of the base 2; an integrated main control circuit board is arranged inside the base 2, and the main control circuit board includes an STM32 single-chip microcomputer, a communication module and a storage unit; a power supply module is also arranged inside the base 2 for connecting to the mains to power the device; the communication module is used to connect and communicate with each module, and the communication module is also compatible with wifi or bluetooth communication to send operation information to the user's mobile phone; the storage unit is used to store log information of device operation.

[0032] In this embodiment, the display module 3 has a built-in password lock module; a lock password is input in advance, and when a correct password is input, the STM32 microcontroller controls the magnetic lock block 15 to power off and open the door panel 12; when an incorrect password is input, the buzzer 4 alarms.

[0033] Example 2

[0034] like Figure 2 As shown, the hot surface of the semiconductor refrigeration plate 8 is in contact with the shell 16 for heat exchange, and the shell 16 is a heat-conducting metal part to facilitate heat dissipation; in addition, the shell 16 is grooved on one side facing the outside of the storage box 1, and a plurality of through holes 17 connected to the base 2 are arranged at the bottom of the groove; the exhaust fan 7 is installed along the groove; the STM32 single-chip microcomputer controls the start and stop of the exhaust fan 7; the exhaust fan 7 is turned on to exhaust and dissipate heat for the components inside the shell 16 and the base 2; the temperature information in the storage box 1 collected by the thermocouple is compared with the pre-set temperature; the STM32 single-chip microcomputer controls the semiconductor refrigeration plate 8 to cool down the temperature in the storage box 1 until the target temperature is reached.

[0035] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An intelligent milk box based on STM32 single chip microcomputer, characterized in that: It comprises a storage box (1) and a base (2); The storage box (1) is provided with an openable door panel (12), and the door panel (12) is hingedly connected to the storage box (1) via a hinge; a storage space is formed in the storage box (1) for storing milk; A bottom plate (5) is provided in the storage box (1), an embedded pressure sensing module is provided in the bottom plate (5), and a horizontal support plate (6) is installed on the bottom plate (5); milk is placed on the support plate (6), and the pressure sensing module obtains a pressure signal; A semiconductor cooling sheet (8) is arranged along the inner wall of the storage box (1), with the cold surface of the semiconductor cooling sheet (8) facing the storable space of the storage box (1), so as to cool the storage box (1); A touch-sensitive display module (3) and a buzzer (4) are arranged on the front of the base (2); an integrated main control circuit board is arranged inside the base (2), and the main control circuit board includes an STM32 single-chip microcomputer, a communication module and a storage unit.

2. According to claim 1, a smart milk box based on STM32 single chip microcomputer is characterized in that: A first heat insulating layer (13) is arranged on the door panel (12); a second heat insulating layer (11) is arranged along the inner wall of the storage box (1); after the door panel (12) is closed, the first heat insulating layer (13) is engaged with the second heat insulating layer (11), thereby forming a heat insulating structure in the storable space of the storage box (1).

3. According to claim 2, a smart milk box based on STM32 single chip microcomputer is characterized in that: The second heat insulating layer (11) arranged along the inner wall of the storage box (1) has openings reserved at the installation positions of the bottom plate (5) and the semiconductor cooling plate (8).

4. The intelligent milk box based on STM32 single chip microcomputer according to claim 1, characterized in that: A magnetic block (14) is arranged on the door panel (12), and a magnetic lock block (15) is correspondingly arranged on the shell (16) of the storage box (1); the STM32 single chip microcomputer controls the power on and off of the magnetic lock block (15).

5. The intelligent milk box based on STM32 single chip microcomputer according to claim 1, characterized in that: A thermocouple and a lighting lamp are arranged at the top of the inner wall of the storage box (1); the STM32 single-chip microcomputer controls the lighting of the lighting lamp and turns it on and off; the thermocouple detects a temperature signal and transmits it to the STM32 single-chip microcomputer, which is then displayed by a display module (3).

6. The intelligent milk box based on STM32 single chip microcomputer according to claim 4, characterized in that: The display module (3) has a built-in password lock module; A locking password is input in advance. When a correct password is input, the STM32 single chip microcomputer controls the magnetic lock block (15) to power off and open the door panel (12); when an incorrect password is input, a buzzer (4) sounds an alarm.

7. The intelligent milk box based on STM32 single chip microcomputer according to claim 1, characterized in that: The hot surface of the semiconductor refrigeration plate (8) contacts with the shell (16) for heat exchange, and the shell (16) is a heat-conducting metal part.

8. The intelligent milk box based on STM32 single chip microcomputer according to claim 7, characterized in that: A slot is formed on one side of the housing (16) facing the outside of the storage box (1); a plurality of through holes (17) connected to the base (2) are arranged at the bottom of the slot; an exhaust fan (7) is installed along the slot; an STM32 single-chip microcomputer controls the start and stop of the exhaust fan (7); and the exhaust fan (7) is turned on to exhaust air and dissipate heat from components inside the housing (16) and the base (2).

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