Pepper curing temperature regulation and control device of steam type curing machine

Abstract

The utility model provides a pepper curing temperature regulation and control device of a steam type curing machine. The pepper curing temperature regulation and control device comprises a steam temperature sensor, a discharging temperature sensor and a controller, a steam generating unit is arranged in the steam type curing machine, steam is generated in real time and introduced into a curing unit, the curing unit is provided with a feeding port and a discharging port, and the controller monitors the input steam temperature and the discharging temperature in real time and continuously changes the steam flow of the steam generating unit, so that constant-temperature curing is achieved. According to the constant-temperature curing machine, two groups of temperature sensors are arranged to respectively monitor the steam temperature and the discharging temperature, and the steam flow in the curing machine is adjusted in real time by utilizing the controller, so that a stable curing temperature is provided for materials, and the materials can be efficiently and accurately cured at a constant temperature; the automation degree, the material curing quality and the curing efficiency of the production line are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pepper processing, and more specifically to a pepper ripening temperature control device of a steam ripening machine. Background Art

[0002] The primary processing line of white pepper mainly consists of four processes: threshing, aging, peeling, and drying. The stability of the temperature in the aging process directly affects the peeling rate and whiteness of the finished white pepper, which are also key indicators of the quality of white pepper. If the aging temperature is lower than the standard temperature range, it will lead to incomplete aging, which will lead to a decrease in the peeling rate and unsatisfactory whiteness; if the aging temperature is higher than the standard temperature range, the white pepper will seriously lose the protective effect of the epidermis, the internal physical and chemical properties will be destroyed, and it will turn brown.

[0003] The aging temperature is mainly related to the steam temperature entering the aging machine and the stability and uniformity of the water content in the machine. Under the condition of ensuring that the feeding amount in the threshing process is uniform and unchanged, the steam flow rate also needs to be controlled.

[0004] At present, the degree of automation of the white pepper production line is low. The aging machine cannot maintain a constant temperature during operation, and the steam flow rate mostly needs to be manually controlled based on experience. The efficiency is low and there are large errors. The aging temperature often deviates from its standard range, causing irreversible damage to the quality of the white pepper. Utility Model Content

[0005] In order to overcome the defect in the prior art that the aging temperature often deviates from the standard range, the utility model provides a pepper aging temperature control device of a steam aging machine, which can efficiently and accurately perform constant temperature aging on white pepper.

[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0007] A pepper ripening temperature control device of a steam ripening machine, the steam ripening machine comprising: a steam generating unit and a ripening unit, the steam outlet of the steam generating unit is connected to the ripening unit, the steam generated by the steam generating unit is passed into the ripening unit, the ripening unit is provided with an inlet and an outlet; the pepper ripening temperature control device comprises a steam temperature sensor, a discharge temperature sensor and a controller;

[0008] A steam temperature sensor is provided at the steam outlet of the steam generating unit, and the steam temperature sensor detects the steam temperature at the steam outlet of the steam generating unit in real time;

[0009] A discharge temperature sensor is provided inside the discharge port, and the discharge temperature sensor detects the discharge temperature inside the discharge port in the maturation unit in real time;

[0010] The signal output ends of the steam temperature sensor and the discharge temperature sensor are connected to the signal input end of the controller, and the signal output end of the controller is electrically connected to the control end of the steam generating unit;

[0011] The controller is used to change the steam flow of the steam generating unit according to the steam temperature and the discharge temperature. When either the steam temperature or the discharge temperature is lower than a preset temperature, the controller sends a signal to the steam generating unit to increase the steam flow and raise the aging temperature to a preset temperature. After reaching the preset temperature, the steam flow is maintained at this time, thereby achieving constant temperature aging.

[0012] Preferably, the steam generating unit comprises: a steam generator, and an electric valve arranged at the steam outlet of the steam generator, the electric valve is electrically connected to the signal output end of the controller, and the controller changes the steam flow rate by changing the opening size of the electric valve.

[0013] Preferably, the electric valve is an electric proportional control valve;

[0014] Using electric valves to regulate steam flow is more accurate and provides better constant temperature control.

[0015] Preferably, the steam-type cooking machine further comprises a feeding unit, and the feeding unit is used to transport the material to the feeding port.

[0016] Preferably, the feeding unit comprises: a feeding conveyor belt and a feeding motor;

[0017] One end of the feeding conveyor belt is connected to the feeding port, and the output end of the feeding motor drives the feeding conveyor belt to transmit;

[0018] Using conveyor belts for loading can save manpower and material resources and improve production efficiency.

[0019] Preferably, the maturation unit comprises: a maturation chamber, a spiral dragon and a propulsion motor;

[0020] The steam generated by the steam generating unit is introduced into the ripening chamber in real time;

[0021] The spiral dragon is arranged inside the maturation chamber and is used for transmitting materials; the output end of the propulsion motor is connected to the central axis of the spiral dragon and is used for driving the spiral dragon to rotate.

[0022] Preferably, the control end of the propulsion motor is also electrically connected to the controller, and the controller changes the speed of the propulsion motor according to the steam temperature and the discharge temperature to achieve constant temperature aging;

[0023] In addition to changing the steam flow rate, the maturation temperature can also be changed by changing the motor speed. When either the steam temperature or the discharge temperature is lower than the preset temperature, the controller sends a signal to the propulsion motor to reduce the motor speed, thereby reducing the speed of the spiral dragon, so that the material stays in the maturation unit longer and is more thoroughly matured; constant temperature maturation can also be achieved in this way.

[0024] Preferably, the steam temperature sensor and the discharge temperature sensor are of the same model, both of which are PT100 temperature sensors.

[0025] Preferably, the controller includes any one of a single chip microcomputer and a PLC controller.

[0026] Preferably, the controller is specifically an STM32 single chip microcomputer.

[0027] Preferably, the material further comprises black pepper;

[0028] The utility model can be used not only for ripening white pepper, but also for ripening materials such as black pepper, has a wide application range and has high practical value.

[0029] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0030] The utility model provides a pepper ripening temperature control device of a steam-type ripening machine, the steam-type ripening machine comprises a steam generating unit and a ripening unit, the ripening unit is provided with an inlet and an outlet, the temperature control device comprises a steam temperature sensor, an outlet temperature sensor and a controller, the material is fed from the inlet, and after being ripened by the ripening unit, the material is discharged from the outlet, and the ripening is completed; the steam generating unit generates steam in real time and passes the steam into the ripening unit, the controller monitors the input steam temperature and the outlet temperature in real time, and continuously changes the steam flow of the steam generating unit, thereby realizing constant temperature ripening;

[0031] The utility model provides two groups of temperature sensors to monitor the steam temperature and the discharge temperature respectively, and uses a controller to adjust the steam flow in the maturation machine in real time, thereby providing a stable maturation temperature for the material, and can efficiently and accurately perform constant temperature maturation on the material, thereby improving the automation degree of the production line, the material maturation quality and the maturation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of a pepper ripening temperature control device of a steam ripening machine provided in Example 1.

[0033] Figure 2 This is a mechanical structure diagram of a pepper ripening temperature control device of a steam ripening machine provided in Example 2.

[0034] 1-feeding port; 2 / 21-steam generator in the steam generating unit; 2 / 22-electric valve in the steam generating unit; 3 / 31-maturing chamber in the maturing unit; 3 / 32-spiral dragon in the maturing unit; 3 / 33-propulsion motor in the maturing unit; 4-discharging port; 5-steam temperature sensor; 6-discharging temperature sensor; 7-controller; 8 / 81-feeding conveyor belt in the feeding unit; 8 / 82-feeding motor in the feeding unit. DETAILED DESCRIPTION

[0035] The drawings are for illustrative purposes only and should not be construed as limiting the present patent;

[0036] In order to better illustrate the present embodiment, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0037] It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0038] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0039] Example 1

[0040] like Figure 1 As shown, this embodiment provides a pepper ripening temperature control device of a steam ripening machine, the steam ripening machine comprises: a steam generating unit 2 and a ripening unit 3, the steam outlet of the steam generating unit 2 is connected to the ripening unit 3, the steam generated by the steam generating unit 2 is passed into the ripening unit 3, the ripening unit 3 is provided with an inlet 1 and an outlet 4; the pepper ripening temperature control device comprises a steam temperature sensor 5, an outlet temperature sensor 6 and a controller 7;

[0041] A steam temperature sensor 5 is provided at the steam outlet of the steam generating unit 2, and the steam temperature sensor 5 detects the steam temperature at the steam outlet of the steam generating unit 2 in real time;

[0042] A discharge temperature sensor 6 is provided inside the discharge port 4, and the discharge temperature sensor 6 detects the discharge temperature inside the discharge port 4 in the maturation unit 3 in real time;

[0043] The signal output ends of the steam temperature sensor 5 and the discharge temperature sensor 6 are connected to the signal input end of the controller 7 , and the signal output end of the controller 7 is electrically connected to the control end of the steam generating unit 2 .

[0044] In the specific implementation process, firstly, the machine is powered on, and the material is fed into the maturation machine from the feed port 1, and then the material enters the maturation unit 3. At this time, the transmission speed of the maturation unit 3 is set, and the steam generating unit 2 is turned on to generate steam of a certain temperature to be passed into the maturation unit 3; at the same time, the steam temperature sensor 5 and the discharge temperature sensor 6 are turned on to detect the steam temperature and the discharge temperature in real time and send them to the controller 7;

[0045] In this embodiment, the material needs to be at 100°C for most of the time during the 8-minute aging time to ensure the aging effect; therefore, the first detection is performed to obtain the steam temperature. When the steam temperature is lower than 100°C, the steam flow rate is increased to increase the aging temperature until the steam temperature is greater than or equal to 100°C; then the second detection is performed to obtain the discharge temperature. When the discharge temperature is lower than 100°C, the steam flow rate is increased and the aging temperature is increased again until the discharge temperature is greater than or equal to 100°C; when both the steam temperature and the discharge temperature meet the conditions, the steam flow rate is maintained at this time to perform constant temperature aging of the material;

[0046] That is, when either the steam temperature or the discharge temperature is lower than the preset temperature (100°C in this embodiment, with an error range of ±3°C), the controller 7 sends a signal to the steam generating unit 2 to increase the steam flow rate at a fixed rate until both the steam temperature and the discharge temperature are greater than or equal to 100°C; in this embodiment, the controller 7 can limit the aging temperature to the standard temperature of 100°C, thereby achieving constant temperature aging; the material after constant temperature aging is discharged from the discharge port 4;

[0047] In this embodiment, two groups of temperature sensors are provided to monitor the steam temperature and the discharge temperature respectively, and the steam flow rate in the maturation machine is adjusted in real time by using a controller, so as to provide a stable maturation temperature for the material, and the material can be efficiently and accurately maturated at a constant temperature, thereby improving the automation degree of the production line, the material maturation quality and the maturation efficiency.

[0048] Example 2

[0049] like Figure 2 As shown, this embodiment provides a pepper ripening temperature control device of a steam ripening machine, the steam ripening machine comprises: a feeding unit 8, a steam generating unit 2 and a ripening unit 3, the steam outlet of the steam generating unit 2 is connected to the ripening unit 3, the steam generated by the steam generating unit 2 is passed into the ripening unit 3, and the ripening unit 3 is provided with an inlet 1 and an outlet 4; the pepper ripening temperature control device comprises a steam temperature sensor 5, a discharge temperature sensor 6 and a controller 7;

[0050] A steam temperature sensor 5 is provided at the steam outlet of the steam generating unit 2, and the steam temperature sensor 5 detects the steam temperature at the steam outlet of the steam generating unit 2 in real time;

[0051] A discharge temperature sensor 6 is provided inside the discharge port 4, and the discharge temperature sensor 6 detects the discharge temperature inside the discharge port 4 in the maturation unit 3 in real time;

[0052] The signal output ends of the steam temperature sensor 5 and the discharge temperature sensor 6 are connected to the signal input end of the controller 7, and the signal output end of the controller 7 is electrically connected to the control end of the steam generating unit 2;

[0053] The steam generating unit 2 comprises: a steam generator 21, and an electric valve 22 arranged at the steam outlet of the steam generator 21, the electric valve 22 is electrically connected to the signal output end of the controller 7, and the controller 7 changes the steam flow rate by changing the opening size of the electric valve 22;

[0054] The electric valve 22 is specifically an electric proportional control valve;

[0055] The feeding unit 8 comprises: a feeding conveyor belt 81 and a feeding motor 82;

[0056] One end of the feeding conveyor belt 81 is connected to the feeding port 1, and the output end of the feeding motor 82 drives the feeding conveyor belt 81 to transmit;

[0057] The maturation unit 3 comprises: a maturation chamber 31, a spiral dragon 32 and a propulsion motor 33;

[0058] The steam generated by the steam generating unit 2 is introduced into the maturation chamber 31 in real time;

[0059] The spiral dragon 32 is arranged inside the maturing chamber 31 and is used to transmit materials; the output end of the propulsion motor 33 is connected to the central axis of the spiral dragon 32 and is used to drive the spiral dragon 32 to rotate;

[0060] The control end of the propulsion motor 33 is also electrically connected to the controller 7. The controller 7 changes the rotation speed of the propulsion motor 33 according to the steam temperature and the discharge temperature to achieve constant temperature aging.

[0061] In the specific implementation process, firstly, the machine is powered on, the feeding motor 82 is turned on, and the material is put into the feeding conveyor belt 81 and sent to the feeding port 1. The material is fed by the conveyor belt, which can save manpower and material resources and improve production efficiency.

[0062] The material is fed into the maturation machine from the feed port 1, and then enters the maturation chamber 31 of the maturation unit 3. The propulsion motor 33 is turned on, and the transmission speed of the spiral dragon 32 is set; the steam generator 21 is turned on to generate steam of a certain temperature and pass it into the maturation chamber 31; at the same time, the steam temperature sensor 5 and the discharge temperature sensor 6 are turned on to detect the steam temperature and the discharge temperature in real time and send them to the controller 7;

[0063] When any one of the steam temperature and the discharge temperature is lower than the preset temperature (any one of 98, 100, and 102° C. in this embodiment), the controller 7 sends a signal to the steam generating unit 2 to increase the opening of the electric valve 22 by a fixed value, thereby increasing the steam flow rate until the steam temperature and the discharge temperature are both greater than or equal to the preset temperature; in this embodiment, the controller 7 can limit the aging temperature to the standard temperature, thereby achieving constant temperature aging; using the electric valve to control the steam flow rate is more accurate and has a better constant temperature control effect;

[0064] Alternatively, in addition to changing the steam flow rate, the aging temperature can also be changed by changing the speed of the propulsion motor 33. When either the steam temperature or the discharge temperature is lower than a preset temperature, the controller 7 sends a signal to the propulsion motor 33 to reduce the motor speed of a fixed value, thereby reducing the speed of the spiral dragon 32, so that the material stays in the aging unit 3 for a longer time and is more thoroughly aging. Constant temperature aging can also be achieved in this way.

[0065] Finally, the material after constant temperature aging by any of the above methods is discharged from the discharge port 4;

[0066] In this embodiment, two groups of temperature sensors are provided to monitor the steam temperature and the discharge temperature respectively, and the steam flow rate in the maturation machine is adjusted in real time by using a controller, so as to provide a stable maturation temperature for the material, and the material can be efficiently and accurately maturated at a constant temperature, thereby improving the automation degree of the production line, the material maturation quality and the maturation efficiency.

[0067] Example 3

[0068] The present embodiment provides a pepper aging temperature control device of a steam aging machine, the steam aging machine comprising: a feeding unit 8, a steam generating unit 2 and a aging unit 3, the steam outlet of the steam generating unit 2 is connected to the aging unit 3, the steam generated by the steam generating unit 2 is passed into the aging unit 3, and the aging unit 3 is provided with an inlet 1 and an outlet 4; the pepper aging temperature control device comprises a steam temperature sensor 5, an outlet temperature sensor 6 and a controller 7;

[0069] A steam temperature sensor 5 is provided at the steam outlet of the steam generating unit 2, and the steam temperature sensor 5 detects the steam temperature at the steam outlet of the steam generating unit 2 in real time;

[0070] A discharge temperature sensor 6 is provided inside the discharge port 4, and the discharge temperature sensor 6 detects the discharge temperature inside the discharge port 4 in the maturation unit 3 in real time;

[0071] The signal output ends of the steam temperature sensor 5 and the discharge temperature sensor 6 are connected to the signal input end of the controller 7, and the signal output end of the controller 7 is electrically connected to the control end of the steam generating unit 2;

[0072] The steam generating unit 2 comprises: a steam generator 21, and an electric valve 22 arranged at the steam outlet of the steam generator 21, the electric valve 22 is electrically connected to the signal output end of the controller 7, and the controller 7 changes the steam flow rate by changing the opening size of the electric valve 22;

[0073] The electric valve 22 is specifically an electric proportional control valve;

[0074] The feeding unit 8 comprises: a feeding conveyor belt 81 and a feeding motor 82;

[0075] One end of the feeding conveyor belt 81 is connected to the feeding port 1, and the output end of the feeding motor 82 drives the feeding conveyor belt 81 to transmit;

[0076] The maturation unit 3 comprises: a maturation chamber 31, a spiral dragon 32 and a propulsion motor 33;

[0077] The steam generated by the steam generating unit 2 is introduced into the maturation chamber 31 in real time;

[0078] The spiral dragon 32 is arranged inside the maturing chamber 31 and is used to transmit materials; the output end of the propulsion motor 33 is connected to the central axis of the spiral dragon 32 and is used to drive the spiral dragon 32 to rotate;

[0079] The control end of the propulsion motor 33 is also electrically connected to the controller 7, and the controller 7 changes the speed of the propulsion motor 33 according to the steam temperature and the discharge temperature to achieve constant temperature maturation;

[0080] The steam temperature sensor 5 and the discharge temperature sensor 6 are of the same model, both of which are PT100 temperature sensors;

[0081] The controller 7 includes any one of a single-chip microcomputer and a PLC controller. In this embodiment, the controller 7 is specifically a STM32 single-chip microcomputer;

[0082] In the specific implementation process, the material in this embodiment is white pepper. First, the machine is powered on, the feeding motor 82 is turned on, and the white pepper is put into the feeding conveyor belt 81 and sent to the feeding port 1. The conveyor belt is used for feeding, which can save manpower and material resources and improve production efficiency.

[0083] White pepper is fed into the aging machine from the feed port 1, and then enters the aging chamber 31 of the aging unit 3. The propulsion motor 33 is turned on, and the transmission speed of the spiral dragon 32 is set; the steam generator 21 is turned on to generate steam of a certain temperature and pass it into the aging chamber 31; at the same time, the steam temperature sensor 5 and the discharge temperature sensor 6 are turned on to detect the steam temperature and the discharge temperature in real time and send them to the controller 7. Both temperature sensors are PT100 temperature sensors, and the controller 7 is an STM32 single chip microcomputer;

[0084] When either the steam temperature or the discharge temperature is lower than the preset temperature (100°C in this embodiment), the controller 7 sends a signal to the steam generating unit 2 to increase the opening of the electric valve 22 by a fixed value, thereby increasing the steam flow rate until both the steam temperature and the discharge temperature are greater than or equal to 100°C; in this embodiment, the controller 7 can limit the aging temperature to the standard temperature of 100°C, thereby achieving constant temperature aging; using the electric valve to control the steam flow rate is more accurate and has a better constant temperature control effect;

[0085] Alternatively, in addition to changing the steam flow rate, the aging temperature can also be changed by changing the speed of the propulsion motor 33. When either the steam temperature or the discharge temperature is lower than 100° C., the controller 7 sends a signal to the propulsion motor 33 to reduce the motor speed of a fixed value, thereby reducing the speed of the spiral dragon 32, so that the white pepper stays in the aging unit 3 for a longer time and is more thoroughly aging. Constant temperature aging can also be achieved in this way.

[0086] Finally, the white pepper after constant temperature aging by any of the above methods is discharged from the discharge port 4;

[0087] In this embodiment, two groups of temperature sensors are provided to monitor the steam temperature and the discharge temperature respectively, and the steam flow rate in the ripening machine is adjusted in real time by using a controller, so as to provide a stable ripening temperature for the white pepper, and the white pepper can be ripened at a constant temperature efficiently and accurately, thereby improving the automation degree of the production line, the ripening quality and the ripening efficiency of the white pepper;

[0088] In addition, the ripening machine in this embodiment can be used not only for ripening white pepper, but also for ripening materials such as black pepper, and has a wide range of applications and high practical value.

[0089] The same or similar reference numerals correspond to the same or similar components;

[0090] The terms used in the drawings to describe positional relationships are only used for illustrative purposes and should not be construed as limiting this patent;

[0091] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A pepper ripening temperature control device of a steam ripening machine, the steam ripening machine comprising: A steam generating unit (2) and a ripening unit (3), wherein the steam outlet of the steam generating unit (2) is connected to the ripening unit (3), the steam generated by the steam generating unit (2) is passed into the ripening unit (3), and the ripening unit (3) is provided with an inlet (1) and an outlet (4); the pepper ripening temperature control device comprises a steam temperature sensor (5), an outlet temperature sensor (6) and a controller (7); A steam temperature sensor (5) is provided at the steam outlet of the steam generating unit (2), and the steam temperature sensor (5) detects the steam temperature at the steam outlet of the steam generating unit (2) in real time; A discharge temperature sensor (6) is arranged inside the discharge port (4), and the discharge temperature sensor (6) detects the discharge temperature inside the discharge port (4) in the maturation unit (3) in real time; The signal output ends of the steam temperature sensor (5) and the discharge temperature sensor (6) are connected to the signal input end of the controller (7), and the signal output end of the controller (7) is electrically connected to the control end of the steam generating unit (2).

2. The pepper ripening temperature control device of the steam ripening machine according to claim 1, characterized in that: The steam generating unit (2) comprises: a steam generator (21), and an electric valve (22) arranged at the steam outlet of the steam generator (21), the electric valve (22) being electrically connected to a signal output end of the controller (7), and the controller (7) changes the steam flow rate by changing the opening size of the electric valve (22).

3. The pepper ripening temperature control device of the steam ripening machine according to claim 2, characterized in that: The electric valve (22) is an electric proportional regulating valve.

4. The pepper ripening temperature control device of the steam ripening machine according to claim 1, characterized in that: The steam-type cooking machine further comprises a feeding unit (8), wherein the feeding unit (8) is used to transport the material to the feeding port (1).

5. The pepper ripening temperature control device of the steam ripening machine according to claim 4, characterized in that: The feeding unit (8) comprises: a feeding conveyor belt (81) and a feeding motor (82); One end of the feeding conveyor belt (81) is connected to the feeding port (1), and the output end of the feeding motor (82) drives the feeding conveyor belt (81) to transmit.

6. The pepper ripening temperature control device of the steam ripening machine according to claim 1, characterized in that: The maturation unit (3) comprises: a maturation chamber (31), a spiral dragon (32) and a propulsion motor (33); The steam generated by the steam generating unit (2) is introduced into the ripening chamber (31) in real time; The spiral dragon (32) is arranged inside the ripening chamber (31) and is used to transmit materials; the output end of the propulsion motor (33) is connected to the central axis of the spiral dragon (32) and is used to drive the spiral dragon (32) to rotate.

7. The pepper ripening temperature control device of the steam ripening machine according to claim 6, characterized in that: The control end of the propulsion motor (33) is also electrically connected to the controller (7), and the controller (7) changes the rotation speed of the propulsion motor (33) according to the steam temperature and the discharge temperature to achieve constant temperature aging.

8. The pepper ripening temperature control device of the steam ripening machine according to claim 1, characterized in that: The steam temperature sensor (5) and the discharge temperature sensor (6) are of the same model, both of which are PT100 temperature sensors.

9. The pepper ripening temperature control device of a steam ripening machine according to claim 1, characterized in that: The controller (7) comprises any one of a single chip microcomputer and a PLC controller.

10. The pepper ripening temperature control device of the steam ripening machine according to claim 9, characterized in that: The controller (7) is specifically a STM32 single-chip microcomputer.

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