Rice milling equipment and control method thereof

Abstract

The invention relates to rice milling equipment and a control method thereof. The rice milling equipment comprises a rice milling module, a main control module, a standby power supply, a power supply output module, a power supply switching module and a voltage sampling module. And the power output module outputs main power supply voltage according to the accessed power supply voltage. The first input end of the power supply switching module is connected with main power supply voltage, the second input end is connected with the standby power supply, and the output end is connected with the main control module and the rice milling module; under the condition that the main power supply voltage is greater than or equal to the preset working voltage, the first input end is conducted with the output end; and under the condition that the main power supply voltage is smaller than the preset working voltage, the second input end is conducted with the output end. The voltage sampling module samples the voltage of the power supply and outputs a corresponding sampling voltage signal to the master control module. The main control module is further connected with the rice milling module and controls the rice milling module to conduct power-down rice discharging operation under the condition that it is determined that the voltage of the power supply is smaller than a preset power supply threshold value according to the sampling voltage signal, and therefore the rice milling effect is improved.

Description

Technical Field

[0001] This application relates to the field of grain processing equipment technology, and in particular to a rice milling device and its control method. Background Technology

[0002] As people's living standards continue to improve, their demand for food has gradually shifted from simply eating enough and eating well to eating nutritious and healthy food. Based on the concept of "milling rice to order, fresh and healthy," home rice milling equipment can ensure that users can eat fresh and healthy germ rice at every meal.

[0003] Currently, rice milling equipment only has basic milling functions. In the event of a sudden power outage or other power failure, the rice being milled remains inside the milling chamber. When power is restored after the outage, the rice milling equipment is prone to mechanical jamming upon startup, affecting the milling effect. Summary of the Invention

[0004] Therefore, it is necessary to provide a rice milling device and its control method, apparatus, and computer-readable storage medium that can effectively cope with power outage conditions, addressing the aforementioned technical problems.

[0005] In one aspect, this application provides a rice milling device, including a rice milling module, a main control module, a backup power supply, and...

[0006] The power output module is used to connect to the power supply voltage and output the main power supply voltage according to the power supply voltage.

[0007] The power switching module includes a first input terminal, a second input terminal, and an output terminal. The first input terminal is connected to the main power supply voltage, the second input terminal is connected to the backup power supply, and the output terminal is connected to the main control module and the rice milling module. When the main power supply voltage is greater than or equal to a preset operating voltage, the first input terminal and the output terminal are connected; when the main power supply voltage is less than the preset operating voltage, the second input terminal and the output terminal are connected.

[0008] A voltage sampling module, connected to the main control module and the power output module, is used to sample the power supply voltage and output the corresponding sampled voltage signal to the main control module.

[0009] The main control module is also connected to the rice milling module; when the power supply voltage is determined to be less than a preset power supply threshold based on the sampled voltage signal, the main control module controls the rice milling module to perform a power-off rice discharge operation.

[0010] In one embodiment, the power switching module includes a unidirectional conduction unit, a backup power switch, and a pull-down unit; the input terminal of the unidirectional conduction unit is connected to the power output module, the first terminal of the backup power switch is used to connect to the backup power supply, and the output terminal of the unidirectional conduction unit and the second terminal of the backup power switch are both connected to the main control module and the rice milling module; the controlled terminal of the backup power switch is connected to the power output module and the pull-down unit, and the backup power switch is turned on when the main power supply voltage output by the power output module is less than the preset operating voltage; the backup power switch is turned off when the main power supply voltage is greater than or equal to the preset operating voltage.

[0011] In one embodiment, the rice milling equipment further includes:

[0012] A charging management module, wherein the input terminal of the charging management module is connected to the power output module and the output terminal of the charging management module is connected to the backup power supply, and is used to charge the backup power supply according to the main power supply voltage.

[0013] In one embodiment, the charging management module includes a charging management chip and a comparison control circuit. The input terminal of the charging management chip is connected to the power output module, and the output terminal of the charging management chip is used to connect to the backup power supply.

[0014] The input terminal of the comparison control circuit is connected to the backup power supply, and the output terminal of the comparison control circuit is connected to the enable terminal of the charging management chip. The comparison control circuit is used to output an enable signal to the enable terminal of the charging management chip when the voltage of the backup power supply is lower than a preset charging voltage threshold, so that the charging management chip charges the backup power supply according to the main power supply voltage.

[0015] In one embodiment, the power output module includes a power voltage processing unit and a switching power supply. The input terminal of the power voltage processing unit is used to connect to the power supply voltage and is also connected to the voltage sampling module. The output terminal of the power voltage processing unit is connected to the input terminal of the switching power supply, and the output terminal of the switching power supply is used to output the main power supply voltage.

[0016] The power supply voltage processing unit is used to rectify and filter the power supply voltage, and the processed voltage signal is converted into the main power supply voltage via the switching power supply.

[0017] In one embodiment, the rice milling module includes: a rice milling bin for containing materials, a rice milling assembly disposed in the rice milling bin, a spare rice bin connected to the rice milling bin, and a first rice dispensing valve disposed between the rice milling bin and the spare rice bin; the rice milling assembly and the first rice dispensing valve are both connected to the main control module; the first rice dispensing valve is also connected to the output terminal of the power switching module;

[0018] The main control module, when determining that the power supply voltage is greater than or equal to the preset power supply threshold based on the sampled voltage signal, controls the rice milling assembly to perform rice milling operations according to the received rice milling command; when determining that the power supply voltage is less than the preset power supply threshold based on the sampled voltage signal, controls the first rice discharge valve to open, and the material in the rice milling chamber is discharged into the spare rice chamber, realizing the rice discharge operation when power is off.

[0019] In one embodiment, the main control module includes:

[0020] The main control unit is connected to the output terminal of the power switching module, the voltage sampling module, the rice milling assembly, and the first rice dispensing valve;

[0021] A first detection unit is located in the rice milling bin; the first detection unit is connected to the output terminal of the power switching module and the main control unit, and is used to detect the material status in the rice milling bin, so as to output the corresponding detection parameters to the main control unit;

[0022] When the main control unit determines that the power supply voltage is less than the preset power supply threshold based on the sampled voltage signal, and determines that there is a mixture of rice and grains in the rice milling bin based on the detection parameters output by the first detection unit, the first rice discharge valve is opened, and the material in the rice milling bin is discharged into the spare rice bin, thus realizing the rice discharge operation when the power is off.

[0023] Secondly, this application provides a control method for a rice milling device, applied to the rice milling device described above. The method includes:

[0024] Real-time acquisition of sampled voltage signals;

[0025] If the power supply voltage is determined to be greater than or equal to a preset power supply threshold based on the sampled voltage signal, the rice milling module is controlled to perform rice milling operation in response to the rice milling command.

[0026] During the rice milling process, if the power supply voltage is determined to be less than a preset power supply threshold based on the sampled voltage signal, the rice milling module is controlled to perform a power-off rice discharge operation.

[0027] In one embodiment, the step of controlling the rice milling module to perform a power-off rice discharge operation when the power supply voltage is determined to be less than a preset power supply threshold based on the sampled voltage signal includes:

[0028] Based on the sampled voltage signal, if the power supply voltage is less than a preset power supply threshold, the detection parameters of the material in the rice milling hopper of the rice milling module are obtained in real time.

[0029] If the detection parameters determine that there is a mixture of rice and grains in the rice milling bin, the rice milling module is controlled to perform a power-off rice discharge operation.

[0030] In one embodiment, controlling the rice milling module to perform rice milling operations in response to a rice milling command includes:

[0031] In response to the rice milling command, the detection parameters of the material in the rice milling bin of the rice milling module are acquired in real time;

[0032] If the detection parameters determine that there is a mixture of rice and grains in the rice milling bin, control the rice milling module to perform a power-off rice discharge operation;

[0033] If the detection parameters determine that there is no rice-grain mixture in the rice milling bin, the rice milling module is controlled to perform rice milling operations.

[0034] Thirdly, this application also provides a control device for a rice milling machine, applied to the rice milling machine described above. The device includes:

[0035] The sampling acquisition module is used to acquire the sampled voltage signal in real time;

[0036] The rice milling control module is used to control the rice milling module to perform rice milling operations in response to a rice milling command when the power supply voltage is determined to be greater than or equal to a preset power supply threshold based on the sampled voltage signal.

[0037] The rice discharge control module is used to control the rice milling module to perform a power-off rice discharge operation when the power supply voltage is determined to be less than a preset power supply threshold based on the sampled voltage signal during the rice milling operation.

[0038] Fourthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, performs the following steps:

[0039] Real-time acquisition of sampled voltage signals;

[0040] If the power supply voltage is determined to be greater than or equal to a preset power supply threshold based on the sampled voltage signal, the rice milling module is controlled to perform rice milling operation in response to the rice milling command.

[0041] During the rice milling process, if the power supply voltage is determined to be less than a preset power supply threshold based on the sampled voltage signal, the rice milling module is controlled to perform a power-off rice discharge operation.

[0042] The aforementioned rice milling equipment, its control method, apparatus, and computer-readable storage medium include a rice milling module, a main control module, a backup power supply, a power output module, a power switching module, and a voltage sampling module. The power output module is used to connect to the power supply voltage and output the main power supply voltage based on the power supply voltage. The power switching module includes a first input terminal, a second input terminal, and an output terminal. The first input terminal connects to the main power supply voltage, the second input terminal connects to the backup power supply, and the output terminal connects to the main control module and the rice milling module. When the main power supply voltage is greater than or equal to a preset operating voltage, the first input terminal and the output terminal are connected; when the main power supply voltage is less than the preset operating voltage, the second input terminal and the output terminal are connected. The voltage sampling module samples the power supply voltage and outputs the corresponding sampled voltage signal to the main control module. The main control module is also connected to the rice milling module. When the sampled voltage signal determines that the power supply voltage is less than a preset power supply threshold, the main control module controls the rice milling module to perform a power-off rice discharge operation. Therefore, the main control module can monitor the voltage status of the power supply voltage in real time through the voltage sampling module and promptly detect power outage anomalies. In the event of a power outage, the power switching module automatically switches to the backup power supply. Simultaneously, the main control module controls the rice milling module to perform a power-off rice discharge operation, promptly removing material from the rice milling hopper. This effectively improves the mechanical jamming problem caused by residual material in the rice milling hopper when the rice milling module starts up after a power outage, thus enhancing the operating efficiency of the rice milling equipment. Attached Figure Description

[0043] Figure 1 This is a structural block diagram of a rice milling device in one embodiment;

[0044] Figure 2 This is a partial circuit diagram of a rice milling device in one embodiment;

[0045] Figure 3 This is a partial circuit structure block diagram of a rice milling device in one embodiment;

[0046] Figure 4 This is a structural block diagram of the rice milling equipment in another embodiment;

[0047] Figure 5 This is a partial structural schematic diagram of a rice milling device in one embodiment;

[0048] Figure 6for Figure 5 A partial schematic diagram of the rice milling equipment in the embodiment;

[0049] Figure 7 This is a flowchart illustrating the control method of a rice milling device in one embodiment;

[0050] Figure 8 This is a flowchart illustrating the control method of the rice milling equipment in another embodiment;

[0051] Figure 9 This is a structural block diagram of the control device for a rice milling equipment in one embodiment. Detailed Implementation

[0052] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0054] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0055] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0056] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.

[0057] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0058] In some embodiments, such as Figure 1 As shown, a rice milling device is provided, including a rice milling module 100, a main control module 200, a voltage sampling module 300, a power output module 400, a power switching module 500, and a backup power supply 600.

[0059] The power output module 400 is used to connect to the power supply voltage and output the main power supply voltage according to the power supply voltage.

[0060] The power switching module 500 includes a first input terminal, a second input terminal, and an output terminal. The first input terminal of the power switching module 500 is connected to the power output module 400 to access the main power supply voltage. The second input terminal is connected to the backup power supply 600. The output terminal is connected to the main control module 200 and the rice milling module 100.

[0061] When the main power supply voltage is greater than or equal to the preset working voltage, the first input terminal and the output terminal of the power switching module 500 are connected to supply power to the main control module 200 and the rice milling module 100 through the main power supply voltage.

[0062] When the main power supply voltage is lower than the preset operating voltage, the second input terminal and the output terminal are connected to supply power to the main control module 200 and the rice milling module 100 through the backup power supply 600.

[0063] The voltage sampling module 300 is connected to the main control module 200 and the power output module 400. It is used to sample the power supply voltage and output the corresponding sampled voltage signal to the main control module 200.

[0064] The main control module 200 is also connected to the rice milling module 100. The main control module 200 is used to control the rice milling module 100 to perform power-off rice discharge operation when the power supply voltage is determined to be less than the preset power supply threshold based on the sampled voltage signal.

[0065] The power supply voltage can be AC ​​mains voltage, and the power output module 400 can convert the AC mains voltage into DC mains voltage. The mains voltage powers the main control module 200 and the rice milling module 100, ensuring a stable operating voltage for the main control module 200 during stable operation and meeting the rice milling module 100's rice discharge voltage requirements during power outages. As an example, the stable operating voltage and the rice discharge voltage are equal.

[0066] The backup power supply 600 can be selected based on the stable operating voltage of the main control module 200 and the rice discharge voltage of the rice milling module 100. Its output voltage matches (is equal to or slightly higher than) the stable operating voltage and the rice discharge voltage. The preset operating voltage is set based on the stable operating voltage and the rice discharge voltage. For example, if the stable operating voltage and the rice discharge voltage are 12V, the preset operating voltage can be 10V to leave a certain margin and reduce misjudgments caused by fluctuations in the power supply voltage.

[0067] Under normal power supply conditions, the main power supply voltage is greater than or equal to the preset operating voltage, and the power switching module 500 switches to supply power to the main control module 200 and the rice milling module 100 via the main power supply voltage. In the event of a power outage, the power supply voltage is interrupted, and the main power supply voltage is significantly lower than the stable operating voltage and the rice milling voltage. At this time, the power switching module 500 automatically switches to supply power to the main control module 200 and the rice milling module 100 via the backup power supply 600.

[0068] In some embodiments, when the power supply voltage is greater than or equal to a preset power supply threshold, the power output module 400 also outputs a rice milling operation voltage based on the power supply voltage. The rice milling module 100 is also connected to the rice milling operation voltage, which provides the power required for the rice milling operation. The main control module 200 can also control the rice milling module 100 to perform rice milling operations based on the received rice milling commands.

[0069] Specifically, the user adds grain to the rice milling module 100 according to actual needs and triggers a rice milling command via an operation panel / terminal device, which is then sent to the main control module 200. When the main control module 200 confirms that the power supply voltage is normal, it controls the rice milling module 100 to perform the rice milling operation according to the command. When the rice milling operation in the rice milling module 100 reaches the preset target time, the rice milling is considered complete, and the module stops operating. The target time can be determined based on factors such as grain type and weight; this embodiment does not limit this.

[0070] Furthermore, the main control module 200 also acquires the sampled voltage signal corresponding to the power supply voltage through the voltage sampling module 300 to determine whether a power outage has occurred. Specifically, if the sampled voltage signal determines that the power supply voltage is lower than a preset power supply threshold, an abnormal power outage is identified. At this time, the main control module 200 continues to operate based on the power provided by the backup power supply 600, controlling the rice milling module 100 to perform a power outage rice discharge operation, so that the rice-grain mixture in the rice milling module 100 is discharged from the rice milling bin.

[0071] It should be noted that if a power outage occurs during the rice milling process, the power-off rice discharge operation can promptly discharge the unmilled rice mixture from the rice milling module 100 through the rice milling bin, thus preventing residual rice from getting stuck in mechanical parts or spoiling. If a power outage occurs after the rice milling process is completed, the main control module 200 can control the rice milling module 100 to perform the power-off rice discharge operation or not, depending on the actual situation. Controlling the rice milling module 100 to perform the power-off rice discharge operation ensures that there is no residue in the rice milling bin, facilitating the next use; not controlling the rice milling module 100 to perform the power-off rice discharge operation can save power from the backup power supply 600.

[0072] In practical implementation, the voltage sampling module 300 can also sample the main power supply voltage, and the main control module 200 determines whether a power outage has occurred based on the sampled signal corresponding to the main power supply voltage. However, since the power output module 400 needs to convert the AC mains voltage to DC main power supply voltage, there will be a delay in the change of the main power supply voltage during this process. Therefore, directly sampling the power supply voltage and determining whether a power outage has occurred based on this method can more timely and accurately detect power supply anomalies, thereby handling power outages more reliably and improving the operational reliability of the rice milling equipment under abnormal conditions.

[0073] The aforementioned rice milling equipment includes a rice milling module 100, a main control module 200, a voltage sampling module 300, a power output module 400, a power switching module 500, and a backup power supply 600. The power output module 400 is used to connect to the power supply voltage and output the main power supply voltage based on the power supply voltage. The power switching module 500 includes a first input terminal, a second input terminal, and an output terminal. The first input terminal connects to the main power supply voltage, the second input terminal connects to the backup power supply 600, and the output terminal connects to the main control module 200 and the rice milling module 100. When the main power supply voltage is greater than or equal to a preset operating voltage, the first input terminal and the output terminal are connected; when the main power supply voltage is less than the preset operating voltage, the second input terminal and the output terminal are connected. The voltage sampling module 300 is used to sample the power supply voltage and output the corresponding sampled voltage signal to the main control module 200. The main control module 200 is also connected to the rice milling module 100. When the sampled voltage signal determines that the power supply voltage is less than a preset power supply threshold, the main control module 200 controls the rice milling module 100 to perform a power-off rice discharge operation. Therefore, the voltage sampling module 300 can monitor the voltage status of the power supply in real time, promptly detect power outages, and automatically switch the power supply to the backup power supply 600 during a power outage. Simultaneously, the main control module 200 controls the rice milling module 100 to perform a power-off rice discharge operation, promptly removing material from the rice milling hopper. This effectively improves the mechanical jamming problem caused by material residue in the rice milling hopper when the rice milling module 100 starts up after a power outage, enhancing the safety of the rice milling module 100's operation and the overall efficiency of the rice milling equipment.

[0074] In some embodiments, such as Figure 2 As shown, the power switching module 500 includes a backup power switch 510, a one-way conduction unit 520, and a pull-down unit 530. The input terminal of the one-way conduction unit 520 is connected to the power output module 400. The first terminal of the backup power switch 510 is used to connect to the backup power supply 600. Both the output terminal of the one-way conduction unit 520 and the second terminal of the backup power switch 510 are connected to the main control module 200 and the rice milling module 10. The controlled terminal of the backup power switch 510 is connected to the power output module 400 and the pull-down unit 530. When the main power supply voltage output by the power output module 400 is less than the preset operating voltage, the backup power switch 510 is turned on; when the main power supply voltage is greater than or equal to the preset operating voltage, the backup power switch 510 is turned off.

[0075] Specifically, when the main power supply voltage output by the power output module 400 is lower than the preset operating voltage, the backup power switch 510 is turned on by the pull-down unit 530, and the unidirectional conduction unit 520 is turned off. At this time, the voltage of the backup power supply 600 is output to the main control module 200 and the rice milling module 100 through the backup power switch 510.

[0076] When the main power supply voltage is greater than or equal to the preset operating voltage, the backup power switch 510 is disconnected under the action of the main power supply voltage, and the unidirectional conduction unit 520 is turned on. At this time, the main power supply voltage is output to the main control module 200 and the rice milling module 100 through the unidirectional conduction unit 520.

[0077] In the above embodiments, by setting up a backup power switch 510, a unidirectional conduction unit 520, and a pull-down unit 530, automatic switching between the main power supply voltage and the backup power supply 600 is achieved. When the main power supply voltage is lower than the preset operating voltage, the backup power switch 510 is quickly turned on by the pull-down unit 530, while the unidirectional conduction unit 520 is turned off, ensuring that the backup power supply 600 can supply power to the main control module 200 and the rice milling module 100 in a timely and stable manner, enabling the rice milling module 100 to complete the rice discharge operation after a power outage. When the main power supply voltage returns to normal (greater than or equal to the preset operating voltage), the backup power switch 510 automatically turns off, the unidirectional conduction unit 520 turns on, and the main power supply voltage is restored. Therefore, the switching process between the main power supply voltage and the backup power supply 600 requires no manual intervention, is rapid and reliable, and improves the operational stability of the rice milling equipment in complex power supply environments.

[0078] In some embodiments, the rice milling equipment further includes a charging management module 700. The input terminal of the charging management module 700 is connected to the power output module 400 to receive the main power supply voltage. The output terminal of the charging management module 700 is connected to a backup power supply 600 for charging the backup power supply 600 according to the main power supply voltage.

[0079] In the above embodiments, the added charging management module 700 can charge the backup power supply 600 through the main power supply voltage, ensuring that the backup power supply 600 can provide stable and reliable power support when needed, and improving the rice milling equipment's ability to cope with abnormal situations such as sudden power outages.

[0080] In some embodiments, the charging management module 700 includes a charging management chip U1 and a comparison control circuit 710. The input terminal (IN) of the charging management chip U1 is connected to the power output module 400, and the output terminal (OUT) of the charging management chip U1 is used to connect to the backup power supply 600.

[0081] The input terminal of the comparator control circuit 710 is connected to the backup power supply 600, and the output terminal of the comparator control circuit 710 is connected to the enable terminal (EN) of the charging management chip U1. The comparator control circuit 710 is used to output an enable signal to the enable terminal of the charging management chip U1 when the voltage of the backup power supply 600 is lower than a preset charging voltage threshold, so that the charging management chip U1 charges the backup power supply 600 according to the main power supply voltage.

[0082] Specifically, the input terminal of the comparison control circuit 710 is connected to the backup power supply 600, enabling real-time monitoring of the backup power supply 600's voltage. When the comparison control circuit 710 detects that the voltage of the backup power supply 600 is lower than a preset charging voltage threshold, it outputs an enable signal to the enable terminal of the charging management chip U1, causing the charging management chip U1 to charge the backup power supply 600 according to the main power supply voltage until the voltage of the backup power supply 600 reaches the preset charging voltage threshold. Conversely, when the voltage of the backup power supply 600 is higher than or equal to the preset charging voltage threshold, the comparison control circuit 710 stops outputting the enable signal, and the charging management chip U1 stops charging, preventing the backup power supply 600 from being overcharged.

[0083] The preset charging voltage threshold can be set according to the specific model of the backup power supply 600. In this embodiment, by setting the charging management chip U1 and the comparison control circuit 710, the charging status can be automatically adjusted according to the actual situation of the main power supply voltage and the backup power supply 600, avoiding overcharging or undercharging and improving the reliability of the rice milling equipment.

[0084] In some embodiments, such as Figure 3 As shown, the power output module 400 includes a power voltage processing unit 410 and a switching power supply 420. The input terminal of the power voltage processing unit 410 is used to connect to the power supply voltage VIN, and the output terminal of the power voltage processing unit 410 is connected to the input terminal of the switching power supply 420. The output terminal of the switching power supply 420 is used to output the main power supply voltage VCC.

[0085] The power supply voltage processing unit 410 is used to rectify and filter the power supply voltage VIN, and the processed voltage signal is converted into the main power supply voltage VCC by the switching power supply 420.

[0086] Specifically, the power supply voltage processing unit 410 is used to rectify and filter the input power supply voltage VIN, converting the AC power supply voltage VIN into DC form, and then using filtering to remove noise and interference components in the voltage signal, making the processed voltage signal smoother and more stable.

[0087] The switching power supply 420 can further convert the input processed voltage signal into the main power supply voltage VCC according to the actual needs of the rice milling equipment, so as to provide reliable power to the main control module 200, rice milling module 100 and other related modules.

[0088] The structure of the power supply voltage processing unit 410 is not limited; for example, a rectifier circuit and a filter circuit can be used. In actual implementation, the power supply voltage processing unit 410 also has EMI (electromagnetic interference) suppression function to improve the quality of the main power supply voltage VCC.

[0089] The input terminal of the power supply voltage processing unit 410 is connected to the voltage sampling module 300 to sample the power supply voltage VIN. It is understood that the power supply voltage processing unit 410 typically includes a filter capacitor, which causes a delay in the output of the main power supply voltage VCC. By sampling the power supply voltage VIN, the timeliness of power failure detection can be improved.

[0090] In some embodiments, refer to Figure 2 The backup power switch 510 includes a MOSFET Q1. For example, the MOSFET Q1 is a PMOS, the source of the MOSFET Q1 serves as the first terminal of the backup power switch 510, the drain of the MOSFET Q1 serves as the second terminal of the backup power switch 510, and the gate of the MOSFET Q1 serves as the controlled terminal of the backup power switch 510.

[0091] The unidirectional conduction unit 520 includes a diode D1, with the anode of the diode D1 serving as the input terminal of the unidirectional conduction unit 520 and the cathode of the diode D1 serving as the output terminal of the unidirectional conduction unit 520.

[0092] The pull-down unit 530 includes a first pull-down resistor R1, the first end of which is connected to the gate of the MOSFET Q1, and the second end of which is grounded.

[0093] In some embodiments, the comparison control circuit 710 includes a first voltage divider resistor R2, a second voltage divider resistor R3, an operational amplifier U2, and a Zener diode D2. The first terminal of the first voltage divider resistor R2 is connected to the positive terminal of the backup power supply 600, and the second terminal of the first voltage divider resistor R2 is connected to the negative terminal of the backup power supply 600 via the second voltage divider resistor R3. The common terminal connecting the first voltage divider resistor R2 and the second voltage divider resistor R3 is connected to the non-inverting input terminal of the operational amplifier U2. The cathode of the Zener diode D2 is connected to the inverting input terminal of the operational amplifier U2, and the anode of the Zener diode D2 is connected to the negative terminal of the backup power supply 600. The output terminal of the operational amplifier U2 is connected to the enable terminal of the charging management chip U1. The parameters of the Zener diode D2 can be selected according to a preset operating voltage.

[0094] In some embodiments, the comparison control circuit 710 further includes a bootstrap capacitor C3 and a second pull-down resistor R4. The output terminal of the operational amplifier U2 is connected to the main power supply voltage VCC through the bootstrap capacitor C3 and to the negative terminal of the backup power supply 600 through the second pull-down resistor R4.

[0095] In some embodiments, the comparison control circuit 710 further includes a first filter capacitor C1, the first end of which is connected to the first end of the first voltage divider resistor R2, and the second end of which is connected to the negative terminal of the backup power supply 600.

[0096] In some embodiments, the rice milling equipment further includes a second filter capacitor C2, the first end of which is connected to the switching power supply 420 in the power output module 400, and the second end of which is connected to the negative terminal of the backup power supply 600.

[0097] Specifically, when the rice milling equipment uses AC mains power, the AC mains power is rectified and filtered by the power supply voltage processing unit 410 and then supplied to the switching power supply 420. The switching power supply 420 outputs the main power supply voltage (e.g., 12V DC voltage). The 12V main power supply voltage is divided into two paths: one is supplied to the charging management chip U1, and the other is supplied to the anode input of diode D1. Since the voltage across the bootstrap capacitor C3 cannot change abruptly, the enable terminal EN of the charging management chip U1 is at a high level, and the charging management chip U1 operates normally, outputting voltage to charge the backup power supply 600.

[0098] When the 12V main power supply voltage is applied to diode D1, diode D1 conducts in the forward direction. The voltage at point D is 12V minus the forward voltage drop of diode D1 (typically 0.7V), which is then used as the DC output. Since the voltage of the backup power supply 600 is much lower than 12V at this time, the source voltage of MOSFET Q1 is lower than the drain voltage, that is, the voltage at point C is lower than the voltage at point D. Furthermore, the gate of MOSFET Q1 has not reached the turn-on voltage, so no current flows through MOSFET Q1.

[0099] After a sudden power outage, the main power supply voltage drops to 0V. Since the backup power supply 600 has been charged, the voltage at point C is much higher than the voltage at point D. Therefore, the current flows through the body diode of MOSFET Q1 to the rear end, supplying power to the main control module 200 and the rice milling module 100.

[0100] In some embodiments, such as Figure 4 As shown, the rice milling module 100 includes a rice milling bin 110 for containing materials, a rice milling assembly 120 disposed in the rice milling bin 110, a spare rice bin 130 connected to the rice milling bin 110, and a first rice discharge valve 140 disposed between the rice milling bin 110 and the spare rice bin 130. The rice milling assembly 120 and the first rice discharge valve 140 are both connected to the main control module 200. The first rice discharge valve 140 is also connected to the output terminal of the power switching module 500.

[0101] When the main control module 200 determines that the power supply voltage is greater than or equal to the preset power supply threshold based on the sampled voltage signal, it controls the rice milling assembly 120 to perform rice milling operations according to the received rice milling command; when it determines that the power supply voltage is less than the preset power supply threshold based on the sampled voltage signal, it controls the first rice discharge valve 140 to open, and the material in the rice milling chamber 110 is discharged into the spare rice chamber 130, realizing the rice discharge operation when power is off.

[0102] The rice milling assembly 120 is also connected to a power supply voltage processing unit 410, which can supply power using either the mains power supply voltage or DC power after rectification and filtering by the power supply voltage processing unit 410. When the mains power supply voltage is normal, the main control module 200 controls the rice milling assembly 120 to perform rice milling operations based on the received rice milling commands. When the mains power supply voltage fails, the rice milling assembly 120 stops milling due to the loss of power supply. If the rice milling operation is not completed at this time, a mixture of rice and grains will remain in the rice milling bin 110. On the one hand, when power is restored, the mixture of rice and grains in the rice milling bin 110 can easily cause mechanical jamming in the rice milling assembly 120, affecting the reliability of its operation. Moreover, when the rice milling operation is restarted, these residual materials may affect the normal working state of the rice milling assembly 120, leading to uneven milling and affecting the milling effect. On the other hand, the mixture of rice and grains in the rice milling bin 110 is not easy to store and is easily affected by environmental factors, causing quality changes. Manual collection by the user would also increase labor costs.

[0103] In this embodiment, the power supply voltage for both the main control module 200 and the first rice discharge valve 140 is provided by the power switching module 500. When the power supply voltage is abnormally depleted based on the sampled voltage signal, the main control module 200 immediately controls the first rice discharge valve 140 to open, allowing the material in the rice milling bin 110 to be discharged into the backup rice bin 130, thus achieving rice discharge operation during power outages. On the one hand, this effectively improves the mechanical jamming problem caused by residual rice and grain mixture in the rice milling bin 110 when power is restored, reducing the risk of equipment failure. On the other hand, it ensures that each rice milling operation can be carried out under ideal conditions, resulting in uniform and stable milling effects and producing high-quality rice. At the same time, timely discharge of material into the backup rice bin 130 reduces the impact of environmental factors on the material, facilitates material preservation, and eliminates the tedious steps of manual material collection, reducing labor costs and effectively improving the user experience of the rice milling equipment.

[0104] In some embodiments, the main control module 200 includes a main control unit and a first detection unit. The main control unit is connected to the output terminal of the power switching module 500, the voltage sampling module 300, the rice milling assembly 120, and the first rice dispensing valve 140. The first detection unit is connected to the output terminal of the power switching module 500 and the main control unit, and the voltage output from the output terminal of the power switching module 500 is connected to the main control unit and the first detection unit.

[0105] The first detection unit is located in the rice milling bin 110 and is used to detect the state of the material in the rice milling bin 110 and output the corresponding detection parameters to the main control unit.

[0106] When the main control unit determines that the power supply voltage is less than the preset power supply threshold based on the sampled voltage signal, and determines that there is a mixture of rice and grains in the rice milling bin 110 based on the detection parameters output by the first detection unit, it controls the first rice discharge valve 140 to open, and the material in the rice milling bin 110 is discharged into the spare rice bin 130, thus realizing the rice discharge operation when the power is off.

[0107] During actual operation, the voltage sampling module 300 continuously collects the voltage signal of the power supply and transmits it to the main control unit. The main control unit determines whether the power supply voltage is lower than the preset power supply threshold based on these sampled voltage signals. At the same time, the first detection unit also works synchronously, feeding back the material status information in the rice milling bin 110 to the main control unit. When the main control unit simultaneously determines that the power supply voltage is lower than the preset power supply threshold and that there is a mixture of rice and grains in the rice milling bin 110, it will quickly control the first rice discharge valve 140 to open, allowing the material in the rice milling bin 110 to be smoothly discharged into the backup rice bin 130, realizing the rice discharge operation after power failure.

[0108] It is understandable that during the application of rice milling equipment, there may be situations where power is lost but the rice milling operation has ended. In this case, there is no rice-grain mixture in the rice milling hopper 110, and no rice discharge operation is required. In this embodiment, the presence of a rice-grain mixture in the rice milling hopper 110 is detected by a first detection unit to determine whether the rice milling operation is complete. Furthermore, the first rice discharge valve 140 is only opened when there is a power outage and the rice milling operation is not completed. This precisely avoids accidentally opening the first rice discharge valve 140 when no rice discharge is needed, effectively reducing unnecessary mechanical movements and energy consumption. It also reduces wear and tear on the equipment caused by frequent and meaningless operations, extending the service life of the first rice discharge valve 140 and related mechanical components.

[0109] In some embodiments, such as Figures 5-6 As shown, Figure 5 This is a schematic diagram of the structure of a rice milling device in one embodiment. Figure 6 for Figure 5 An enlarged schematic diagram of the area indicated by the dotted circle. The rice milling module 100 also includes a main rice bin 150 connected to the rice milling bin 110, and a second rice discharge valve 141 disposed between the rice milling bin 110 and the main rice bin 150. The second rice discharge valve 141 is connected to the output terminal of the power switching module 500 and the main control unit in the main control module 200. After the rice milling operation is completed, the main control module 200 controls the second rice discharge valve 141 to open, so as to discharge the milled rice into the main rice bin 150. As an example, the second rice discharge valve 141 is positioned directly above the main rice bin 150. The first rice discharge valve 140 is positioned directly above the spare rice bin 130. Both the first rice discharge valve 140 and the second rice discharge valve 141 are normally closed valves.

[0110] In some embodiments, the rice milling module 100 further includes a rice bran bin 160 connected to the rice milling bin 110, into which rice bran is discharged during the rice milling process for collection and storage.

[0111] In some embodiments, the rice milling module 100 further includes a grain silo 170 connected to the rice milling bin 110, the grain silo 170 being used to hold grains to be milled. Further, the rice milling module 100 also includes a third rice discharge valve 171, which is connected to the output terminal of the power switching module 500 and the main control unit in the main control module 200. Upon receiving a rice milling command, the main control module 200 controls the third rice discharge valve 171 to open, so as to discharge the grains to be milled from the grain silo 170 into the rice milling bin 110.

[0112] In some embodiments, the main control module 200 includes a first detection unit 210 and a second detection unit 220 connected to the main control unit. As an example, the first detection unit 210 includes two sensors positioned at different locations. Both sensors are used to detect the material status information within the rice milling silo 110 and feed it back to the main control unit. As an example, the second detection unit 220 is located in the grain silo 170 near the rice milling silo 110. It is used to detect the material status information within the grain silo 170 and feed it back to the main control unit. After receiving a rice milling command, the main control unit determines, based on the material status information fed back by the second detection unit 220, that there is grain stored in the grain silo 170 before controlling the third rice discharge valve 171 to open, discharging the grain to be milled from the grain silo 170 into the rice milling silo 110. The second detection unit 220 may include sensors. Each sensor and each rice discharge valve is connected to the output terminal of the power switching module 500 and is powered by the voltage output by the power switching module 500. The type of each sensor can be set according to actual needs, such as an infrared sensor, a distance sensor, an image acquisition device, etc.

[0113] In some embodiments, the rice milling assembly 120 includes a milling motor 1211, a milling rib 1212, a screw propeller 1213, and a screen 1214. The milling motor 1211 and the screw propeller 1213 are connected to the main control unit and also to the power supply voltage processing unit 410.

[0114] After the rice milling equipment is powered on, the main control unit first identifies whether there is a mixture of rice and grains in the rice milling hopper 110 based on the information fed back by the first detection unit 210. If a mixture of rice and grains is detected, the first rice discharge valve 140 is opened, and the mixture flows into the spare rice hopper 130. If no mixture of rice and grains is detected, the rice milling function is started normally. That is, the second detection unit 220 identifies whether there is grain to be milled in the grain hopper 170. If so, the third rice discharge valve 171 is opened, and the grain to be milled in the grain hopper 170 is discharged into the rice milling hopper 110. Then, the milling motor 1211 and the screw propeller 1213 are started and run. Under the combined action of the milling ribs 1212, the screw propeller 1213, and the screen 1214, the grain is milled and the bran is collected.

[0115] When a power failure occurs during rice milling, the backup power supply 600 supplies power to the main control unit, each detection unit, and each rice discharge valve in the main control module 200. The main control unit identifies whether there is a mixture of rice and grains in the rice milling chamber 110 based on the information fed back by the first detection unit 210. When the presence of a mixture of rice and grains is detected, the first rice discharge valve 140 is opened, and the mixture of rice and grains flows into the backup rice chamber 130, thus realizing the discharge of rice when the power is off.

[0116] In some embodiments, the main control unit includes a DC-DC conversion circuit and a main control chip. The DC-DC conversion circuit is connected to the output of the power switching module 500 to convert the main power supply voltage or the backup power supply voltage 600 into the power supply voltage of the main control chip. As an example, the main control chip is powered by 5V, and the DC-DC conversion circuit is used to provide 5V voltage to power the main control chip according to the received voltage.

[0117] In some embodiments, a control method for a rice milling device is provided, applied to the rice milling device, which can be configured as described in the above embodiments. Exemplarily, this method is applied to... Figure 1 Taking the main control module 200 as an example, the specific application to the main control unit in the main control module 200 includes the following steps:

[0118] Step 802: Acquire the sampled voltage signal in real time.

[0119] Step 804: If the power supply voltage is determined to be greater than or equal to the preset power supply threshold based on the sampled voltage signal, the rice milling module is controlled to perform rice milling operation in response to the rice milling command.

[0120] Step 806: During the rice milling operation of the rice milling module, if the power supply voltage is determined to be less than the preset power supply threshold based on the sampled voltage signal, the rice milling module is controlled to perform a power-off rice discharge operation.

[0121] The aforementioned control method can acquire sampled voltage signals in real time to monitor the voltage status of the power supply and detect power outages promptly. During a power outage, the rice milling module is controlled to perform a power-off rice discharge operation, promptly removing material from the rice milling hopper. This effectively improves the mechanical jamming problem caused by material residue in the rice milling hopper when the rice milling module starts up after a power outage, enhancing the safety of the rice milling module's operation and the overall efficiency of the rice milling equipment.

[0122] In some embodiments, the step of controlling the rice milling module to perform a power-off rice discharge operation when the power supply voltage is determined to be less than a preset power supply threshold based on the sampled voltage signal includes the following steps:

[0123] Based on the sampled voltage signal, if the power supply voltage is less than the preset power supply threshold, the detection parameters of the material in the rice milling hopper of the rice milling module are obtained.

[0124] If the detection parameters determine that there is a mixture of rice and grains in the rice milling bin, the rice milling module is controlled to perform a power-off rice discharge operation.

[0125] During actual operation, the voltage sampling module continuously collects the voltage signal from the power supply and transmits it to the main control unit. The main control unit uses these sampled voltage signals to determine if a power outage has occurred. Simultaneously, the main control unit also obtains the material status information within the rice milling hopper through the first detection unit. When the main control unit determines that the power supply voltage is lower than the preset power supply threshold and that there is a mixture of rice and grains in the rice milling hopper, it controls the first rice discharge valve in the rice milling module to open, allowing the material in the rice milling hopper to be smoothly discharged into the backup rice hopper, thus achieving power outage rice discharge operation.

[0126] It is understandable that during the application of rice milling equipment, there may be situations where power is lost but the rice milling operation has ended. In this case, there is no rice-grain mixture in the rice milling hopper, and there is no need for rice discharge. In this embodiment, the presence of a rice-grain mixture in the rice milling hopper is determined by acquiring the detection parameters of the material in the rice milling module, thereby determining whether the rice milling operation is complete. Furthermore, the first rice discharge valve is only opened when there is a power outage and the rice milling operation is not completed. This precisely avoids accidentally opening the first rice discharge valve when rice discharge is not required, effectively reducing unnecessary mechanical movements and energy consumption. It also reduces wear and tear on the equipment caused by frequent and meaningless operations, extending the service life of the first rice discharge valve and related mechanical components.

[0127] In some embodiments, the step of controlling the rice milling module to perform rice milling operations in response to a rice milling command includes the following steps:

[0128] In response to the rice milling command, the detection parameters of the material in the rice milling hopper of the rice milling module are obtained in real time;

[0129] If the detection parameters determine that there is a mixture of rice and grains in the rice milling bin, the rice milling module is controlled to perform a power-off rice discharge operation.

[0130] If the detection parameters determine that there is no mixture of rice and grains in the rice milling bin, the rice milling module is controlled to perform rice milling operations.

[0131] In this embodiment, after receiving the rice milling command, the control unit first determines whether there is a mixture of rice and grains in the rice milling hopper by acquiring the detection parameters of the material in the rice milling hopper of the rice milling module. If a mixture of rice and grains is present, the first rice discharge valve is opened to perform a power-off rice discharge operation, which can promptly remove residual material in the rice milling hopper and reduce the impact of residual material on the current rice milling operation. For example, residual material increases the total amount of material in the current rice milling operation, which may affect the milling effect of the current operation. If the detection parameters determine that there is no mixture of rice and grains in the rice milling hopper, the rice milling module is controlled to perform the rice milling operation to ensure the reliability of the current rice milling operation.

[0132] To better understand the above embodiments, an optional embodiment will be explained in detail below. Please refer to... Figure 4 , Figure 5 , Figure 6 and Figure 8 In one embodiment, after the rice milling equipment is powered on, the main control unit first identifies whether there is a mixture of rice and grains in the rice milling hopper based on the information fed back by the first detection unit. If a mixture of rice and grains is detected, the first rice discharge valve is opened, and the mixture of rice and grains in the rice milling hopper flows into the spare rice hopper. If no mixture of rice and grains is detected, the rice milling function is started normally. Based on the information fed back by the second detection unit, the system identifies whether there is grain to be milled in the grain bin. If so, the third rice discharge valve is opened, and the grain to be milled in the grain bin is discharged into the rice milling hopper. Then, the system controls the milling motor to start running, and under the combined action of the milling ribs, the screw propeller, and the screen, the grain is milled and the bran is collected.

[0133] During the rice milling process, the system uses real-time sampled voltage signals to determine if a sudden power outage has occurred. If a power outage occurs, the backup power supply provides power to the main control unit, each detection unit, and each rice discharge valve. The main control unit uses information from the first detection unit to identify whether there is a mixture of rice and grains in the milling chamber. If a mixture of rice and grains is detected, the main control unit opens the first rice discharge valve, allowing the mixture to flow into the backup rice chamber, thus achieving rice discharge in case of power failure. If no mixture of rice and grains is detected, the rice milling process is considered complete.

[0134] The above control method solves the problem of rice-grain mixture residue inside the rice milling equipment when there is a sudden power outage or power failure, effectively improving the user experience.

[0135] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0136] Based on the same inventive concept, this application also provides a control device for a rice milling device to implement the control method for the rice milling device described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more control device embodiments of the rice milling device provided below can be found in the limitations of the control method for the rice milling device described above, and will not be repeated here.

[0137] In some embodiments, such as Figure 9 As shown, a control device for a rice milling equipment is provided, applied to the rice milling equipment described above, including a sampling acquisition module 902, a rice milling control module 904, and a rice discharge control module 906, wherein:

[0138] The sampling acquisition module 902 is used to acquire the sampled voltage signal in real time.

[0139] The rice milling control module 904 is used to control the rice milling module to perform rice milling operations in response to a rice milling command when the power supply voltage is determined to be greater than or equal to a preset power supply threshold based on the sampled voltage signal.

[0140] The rice discharge control module 906 is used to control the rice milling module to perform a power-off rice discharge operation when the power supply voltage is determined to be less than a preset power supply threshold during the rice milling operation.

[0141] In some embodiments, the rice discharge control module 906 is further configured to, based on the sampled voltage signal, determine that the power supply voltage is less than a preset power supply threshold, acquire in real time the detection parameters of the material in the rice milling bin of the rice milling module; and, based on the detection parameters, determine that there is a mixture of rice and grains in the rice milling bin, control the rice milling module to perform a power-off rice discharge operation.

[0142] In some embodiments, the rice milling control module 904 is further configured to respond to a rice milling command by acquiring, in real time, the detection parameters of the material in the rice milling bin of the rice milling module; if the detection parameters determine that there is a mixture of rice and grains in the rice milling bin, control the rice milling module to perform a power-off rice discharge operation; and if the detection parameters determine that there is no mixture of rice and grains in the rice milling bin, control the rice milling module to perform a rice milling operation.

[0143] The various modules in the control device of the aforementioned rice milling equipment can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0144] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0145] Real-time acquisition of sampled voltage signals;

[0146] If the power supply voltage is determined to be greater than or equal to the preset power supply threshold based on the sampled voltage signal, the rice milling module is controlled to perform rice milling operation in response to the rice milling command.

[0147] During the rice milling process, if the power supply voltage is determined to be lower than the preset power supply threshold based on the sampled voltage signal, the rice milling module is controlled to perform a power-off rice discharge operation.

[0148] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0149] Based on the sampled voltage signal, if the power supply voltage is less than the preset power supply threshold, the detection parameters of the material in the rice milling hopper of the rice milling module are obtained in real time.

[0150] If the detection parameters determine that there is a mixture of rice and grains in the rice milling bin, the rice milling module is controlled to perform a power-off rice discharge operation.

[0151] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0152] In response to the rice milling command, the detection parameters of the material in the rice milling hopper of the rice milling module are obtained in real time;

[0153] If the detection parameters determine that there is a mixture of rice and grains in the rice milling bin, the rice milling module is controlled to perform a power-off rice discharge operation.

[0154] If the detection parameters determine that there is no mixture of rice and grains in the rice milling bin, the rice milling module is controlled to perform rice milling operations.

[0155] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0156] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0157] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A rice milling device, characterized in that, Includes rice milling module, main control module, backup power supply and The power output module is used to connect to the power supply voltage and output the main power supply voltage according to the power supply voltage. The power switching module includes a first input terminal, a second input terminal, and an output terminal. The first input terminal is connected to the main power supply voltage, the second input terminal is connected to the backup power supply, and the output terminal is connected to the main control module and the rice milling module. When the main power supply voltage is greater than or equal to the preset operating voltage, the first input terminal is connected to the output terminal. When the main power supply voltage is less than the preset operating voltage, the second input terminal is connected to the output terminal; A voltage sampling module, connected to the main control module and the power output module, is used to sample the power supply voltage and output the corresponding sampled voltage signal to the main control module. The main control module is also connected to the rice milling module; when the power supply voltage is determined to be less than a preset power supply threshold based on the sampled voltage signal, the main control module controls the rice milling module to perform a power-off rice discharge operation.

2. The rice milling equipment according to claim 1, characterized in that, The power switching module includes a unidirectional conduction unit, a backup power switch, and a pull-down unit. The input terminal of the unidirectional conduction unit is connected to the power output module. The first terminal of the backup power switch is used to connect to the backup power supply. The output terminal of the unidirectional conduction unit and the second terminal of the backup power switch are both connected to the main control module and the rice milling module. The controlled terminal of the backup power switch is connected to the power output module and the pull-down unit. When the main power supply voltage output by the power output module is less than the preset operating voltage, the backup power switch is turned on. When the main power supply voltage is greater than or equal to the preset operating voltage, the backup power switch is disconnected.

3. The rice milling equipment according to claim 1, characterized in that, The rice milling equipment also includes: A charging management module, wherein the input terminal of the charging management module is connected to the power output module and the output terminal of the charging management module is connected to the backup power supply, and is used to charge the backup power supply according to the main power supply voltage.

4. The rice milling equipment according to claim 3, characterized in that, The charging management module includes a charging management chip and a comparison control circuit. The input terminal of the charging management chip is connected to the power output module, and the output terminal of the charging management chip is used to connect to the backup power supply. The input terminal of the comparison control circuit is connected to the backup power supply, and the output terminal of the comparison control circuit is connected to the enable terminal of the charging management chip. The comparison control circuit is used to output an enable signal to the enable terminal of the charging management chip when the voltage of the backup power supply is lower than a preset charging voltage threshold, so that the charging management chip charges the backup power supply according to the main power supply voltage.

5. The rice milling equipment according to claim 1, characterized in that, The power output module includes a power voltage processing unit and a switching power supply. The input terminal of the power voltage processing unit is used to connect to the power supply voltage and is also connected to the voltage sampling module. The output terminal of the power voltage processing unit is connected to the input terminal of the switching power supply, and the output terminal of the switching power supply is used to output the main power supply voltage. The power supply voltage processing unit is used to rectify and filter the power supply voltage, and the processed voltage signal is converted into the main power supply voltage via the switching power supply.

6. The rice milling equipment according to any one of claims 1-5, characterized in that, The rice milling module includes: a rice milling bin for containing materials, a rice milling assembly disposed in the rice milling bin, a spare rice bin connected to the rice milling bin, and a first rice dispensing valve disposed between the rice milling bin and the spare rice bin; the rice milling assembly and the first rice dispensing valve are both connected to the main control module; the first rice dispensing valve is also connected to the output terminal of the power switching module; The main control module, when determining that the power supply voltage is greater than or equal to the preset power supply threshold based on the sampled voltage signal, controls the rice milling assembly to perform rice milling operations according to the received rice milling command; when determining that the power supply voltage is less than the preset power supply threshold based on the sampled voltage signal, controls the first rice discharge valve to open, and the material in the rice milling chamber is discharged into the spare rice chamber, realizing the rice discharge operation when power is off.

7. The rice milling equipment according to claim 6, characterized in that, The main control module includes: The main control unit is connected to the output terminal of the power switching module, the voltage sampling module, the rice milling assembly, and the first rice dispensing valve; A first detection unit is located in the rice milling bin; the first detection unit is connected to the output terminal of the power switching module and the main control unit, and is used to detect the material status in the rice milling bin, so as to output the corresponding detection parameters to the main control unit; When the main control unit determines that the power supply voltage is less than the preset power supply threshold based on the sampled voltage signal, and determines that there is a mixture of rice and grains in the rice milling bin based on the detection parameters output by the first detection unit, the first rice discharge valve is opened, and the material in the rice milling bin is discharged into the spare rice bin, thus realizing the rice discharge operation when the power is off.

8. A control method for a rice milling device, characterized in that, The method, applied to the rice milling equipment as described in any one of claims 1-7, comprises: Real-time acquisition of sampled voltage signals; If the power supply voltage is determined to be greater than or equal to a preset power supply threshold based on the sampled voltage signal, the rice milling module is controlled to perform rice milling operation in response to the rice milling command. During the rice milling process, if the power supply voltage is determined to be less than a preset power supply threshold based on the sampled voltage signal, the rice milling module is controlled to perform a power-off rice discharge operation.

9. The method according to claim 8, characterized in that, The step of controlling the rice milling module to perform a power-off rice discharge operation when the power supply voltage is determined to be less than a preset power supply threshold based on the sampled voltage signal includes: Based on the sampled voltage signal, if the power supply voltage is less than a preset power supply threshold, the detection parameters of the material in the rice milling hopper of the rice milling module are obtained in real time. If the detection parameters determine that there is a mixture of rice and grains in the rice milling bin, the rice milling module is controlled to perform a power-off rice discharge operation.

10. The method according to claim 8, characterized in that, The step of controlling the rice milling module to perform rice milling operations in response to a rice milling command includes: In response to the rice milling command, the detection parameters of the material in the rice milling bin of the rice milling module are acquired in real time; If the detection parameters determine that there is a mixture of rice and grains in the rice milling bin, control the rice milling module to perform a power-off rice discharge operation; If the detection parameters determine that there is no rice-grain mixture in the rice milling bin, the rice milling module is controlled to perform rice milling operations.

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