CN111083811A - Power control method, device and storage medium - Google Patents
Power control method, device and storage medium Download PDFInfo
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- CN111083811A CN111083811A CN201911347373.5A CN201911347373A CN111083811A CN 111083811 A CN111083811 A CN 111083811A CN 201911347373 A CN201911347373 A CN 201911347373A CN 111083811 A CN111083811 A CN 111083811A
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- Prior art keywords
- power
- control
- specified device
- opening sequence
- target power
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
- A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
Abstract
The application relates to a power control method, a device and a storage medium, belonging to the technical field of electronics, wherein the method comprises the following steps: acquiring target power; determining the working mode of the specified device based on the target power, wherein the working mode comprises an opening sequence for controlling the specified device to be opened and a control angle of each opening sequence; controlling the designated device to work according to the working mode so that the heating power of the designated device is the target power; the problem that the service life of the heating wire is short and the service life of the hair dryer is short due to the fact that the heating wire is always kept in an open state during the working period of the hair dryer can be solved; since the specified device is not always kept in the on state, the service life of the specified device can be prolonged, thereby prolonging the service life of the blower. By setting the control angle of the opening sequence, the half-wave control of the appointed device is not limited, the control of the control angle with a preset angle can be realized, and the finer power control is realized.
Description
Technical Field
The application relates to a power control method, a power control device and a storage medium, and belongs to the technical field of electronics.
Background
When the hair drier works, the power supply is used for supplying power to the heating wire arranged inside the hair drier, so that the heating wire generates heat, and the air temperature passing through the heating wire is raised and then blown out from the air nozzle of the hair drier. The power supply for supplying power to the heating wire is alternating current, and if the heating wire is kept in an open state all the time, the aging speed of the heating wire is accelerated, the service life of the hair dryer is shortened, and the like.
Disclosure of Invention
The application provides a power control method, a power control device and a storage medium, which can solve the problem that the service life of a heating wire is short due to the fact that the heating wire is always kept in an open state during the working period of a hair drier, and therefore the service life of the hair drier is short. The application provides the following technical scheme:
in a first aspect, a power control method is provided, the method including:
acquiring target power;
determining the working mode of the specified device based on the target power, wherein the working mode comprises an opening sequence for controlling the specified device to be opened and a control angle of each opening sequence, and the opening sequence refers to the duration of keeping the specified device to be opened in each working period;
and controlling the specified device to work according to the working mode so that the heating power of the specified device is the target power.
Optionally, the determining the operation mode of the specific device based on the target power includes:
when the target power is k times of the power corresponding to each opening sequence, determining that the working mode comprises k opening sequences, and the control angle of each opening sequence is zero degree; and k is a positive integer.
Optionally, the determining the operation mode of the specific device based on the target power includes:
when the target power is a difference value obtained by subtracting powers corresponding to n control angles from powers corresponding to m aperture sequences, it is determined that the working mode includes m aperture sequences, n aperture sequences in the m aperture sequences have control angles with preset angles, m is a positive integer, and n is a positive integer smaller than or equal to m.
Optionally, the control angle of the preset angle satisfies an EMC test specification.
Optionally, the specifying device is connected to a rectifying circuit, and the rectifying circuit includes a thyristor, and the thyristor is configured to change an output waveform of the power supply, so that the modified power supply waveform has a control angle of a preset angle.
Optionally, the controlling the designated device to operate according to the operating mode includes:
when the current time is the time after the control angle corresponding to the opening sequence, controlling the specified device to be started;
and controlling the specified device to be closed when the current time is not the time after the control angle corresponding to the opening sequence.
Optionally, the designated device is a heat generating device in the hair dryer.
In a second aspect, there is provided a power control apparatus, the apparatus comprising:
the power acquisition module is used for acquiring target power;
the mode determining module is used for determining the working mode of the specified device based on the target power, wherein the working mode comprises an opening sequence for controlling the specified device to be opened and a control angle of each opening sequence, and the opening sequence refers to the duration of keeping the specified device to be opened in each working cycle;
and the power control module is used for controlling the specified device to work according to the working mode so as to enable the heating power of the specified device to be the target power.
In a third aspect, a power control apparatus is provided, the apparatus comprising a processor and a memory; the memory has stored therein a program that is loaded and executed by the processor to implement the power control method of the first aspect.
In a fourth aspect, there is provided a computer-readable storage medium having a program stored therein, the program being loaded and executed by the processor to implement the power control method of the first aspect.
The beneficial effect of this application lies in: obtaining a target power; determining the working mode of the appointed device based on the target power, wherein the working mode comprises an opening sequence for controlling the appointed device to be opened and control angles of the opening sequences, and the opening sequence refers to the duration for keeping the appointed device to be opened in each working period; controlling the designated device to work according to the working mode so that the heating power of the designated device is the target power; the problem that the service life of the heating wire is short and the service life of the hair dryer is short due to the fact that the heating wire is always kept in an open state during the working period of the hair dryer can be solved; based on the power required by each gear, the appointed device is controlled to be opened for a period of time and closed for a period of time in the working period, so that the appointed device is not always kept in an opening state, the service life of the appointed device can be prolonged, and the service life of the hair drier is prolonged. In addition, by setting the control angle of the aperture sequence, the operating time of a given device can be more finely controlled according to the target power. That is, the control of the control angle having the preset angle can be realized without being limited to the control of the half wave.
The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clear and clear, and to implement the technical solutions according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a waveform of an alternating current provided by an embodiment of the present application;
FIG. 2 is a schematic illustration of a control angle provided by one embodiment of the present application;
FIG. 3 is a schematic diagram of a power control system according to an embodiment of the present application;
FIG. 4 is a flow chart of a power control method provided by an embodiment of the present application;
FIG. 5 is a waveform diagram illustrating the operation of one embodiment of the present application;
FIG. 6 is a waveform schematic diagram of the operation provided by another embodiment of the present application;
fig. 7 is a block diagram of a power control apparatus provided in an embodiment of the present application;
fig. 8 is a block diagram of a power control apparatus according to an embodiment of the present application.
Detailed Description
The following detailed description of embodiments of the present application will be described in conjunction with the accompanying drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
First, a number of terms referred to in this application are introduced:
silicon controlled rectifier: the thyristor is a semi-controlled device, is also called a thyristor and is mainly used in a rectifying circuit. The thyristor is used for changing the waveform of the output voltage by controlling the conduction time. Taking a single-phase half-wave controllable rectifying circuit as an example, the half cycle of the alternating current circuit is set to 180 degrees, which is called an electrical angle. In a half cycle, the electrical angle of the input voltage starting from 0 until the instant the thyristor trigger pulse arrives, called the control angle; the electrical angle of the thyristor conduction time per half cycle is called the conduction angle.
For example, when an alternating current shown in fig. 1 passes through a thyristor, the alternating current can be controlled to start conducting at any angle of 0-180 degrees, namely, controlled rectification, when a positive half cycle is applied to the anode of the thyristor, and when a certain angle of 180 degrees, a trigger pulse is applied to the control electrode of the thyristor, for example, a pulse is applied at 30 degrees in the positive half cycle shown in fig. 2, and the thyristor can only pass the remaining 150 degrees of current.
Electromagnetic Compatibility (EMC) is a comprehensive assessment of the Electromagnetic interference (EMI) and the interference rejection (EMS) of electronic products, and is one of the most important indexes of product quality.
Fig. 3 is a schematic structural diagram of a power control apparatus according to an embodiment of the present application. As shown in fig. 3, the power control apparatus includes at least a processing component 110 and a designation device 120.
Alternatively, the power control device may be a blower; or other devices having a designated component 120 and a processing element 110, the present embodiment is not limited to the implementation of the power control apparatus.
In one example, the designated device 120 is a heater in a hair dryer that includes an inner coil heater and an outer coil heater nested outside the inner coil heater.
The power source of the blower uses alternating current to power the designated device 120. The alternating current may be a sine wave.
The processing component 110 is communicatively coupled to the designated device 120, and the processing component 110 is configured to designate an operational state of the device 120. Wherein the working state comprises opening and closing. In other words, the designation device 120 is turned on or off according to the control of the processing component 110.
Optionally, in the present application, the processing component 110 is configured to obtain a target power; determining the working mode of the designated device based on the target power, wherein the working mode comprises an opening sequence for controlling the designated device to be opened and a control angle of each opening sequence; and controlling the specified device to work according to the working mode so that the heating power of the specified device is the target power.
Wherein the control angle may be 0 degree or a preset angle. The control angle of the preset angle meets the EMC test index. In other words, after the control angle with the preset angle is used, the EMC test of the whole machine is not obviously influenced. Because EMC interference and voltage sudden change's size are positive correlation, consequently, when the control angle is great, the control angle can cause the voltage sudden change, can cause obvious influence to whole quick-witted EMC test this moment, through setting up the control angle of minizone in this application, makes the control of appointed device have higher precision on compatible EMC's basis, can realize more nimble control strategy.
The control angle of the preset angle is realized through a silicon controlled rectifier. At this time, the power control apparatus further includes a rectifying circuit 130 communicatively connected to the processing component 110 and the designating device 120, respectively, and the rectifying circuit includes a thyristor for changing an output waveform of the power supply so that the modified power supply waveform has a control angle of a preset angle.
In this embodiment, the designated device 120 is controlled to be turned on for a period of time and turned off for a period of time in the working cycle based on the power required by each gear, so that the designated device 120 is not always kept in an on state, the service life of the designated device 120 can be prolonged, and the service life of the blower can be prolonged.
In addition, in the application, by setting the control angle of the opening sequence, the working time length of the specified device can be more finely controlled according to the target power. That is, the control of the control angle having the preset angle can be realized without being limited to the control of the half wave.
Fig. 4 is a flowchart of a power control method according to an embodiment of the present application, where the method is applied to the power control apparatus shown in fig. 3, and the execution subject of each step is described as an example of the processing element 110. The method at least comprises the following steps:
Alternatively, the target power may be the power corresponding to each gear, such as: the first gear corresponds to 100W; or second gear corresponds to 200W. Alternatively, the target power is a power determined from temperature data collected by a temperature sensor.
And 402, determining the working mode of the specified device based on the target power, wherein the working mode comprises the opening sequence for controlling the opening of the specified device and the control angle of each opening sequence.
In one example, when the target power is k times of the power corresponding to each opening sequence, the working mode is determined to comprise k opening sequences, and the control angle of each opening sequence is zero degree; k is a positive integer.
Such as: referring to fig. 5, the target power is 1000W, the power corresponding to each aperture sequence is 100W, and at this time, the target power is 10 times (k is 10) the power corresponding to each aperture sequence, so that the number of aperture sequences in each duty cycle is 10.
In another example, when the target power is a difference value between power corresponding to m aperture sequences and power corresponding to n control angles, the operating mode is determined to include m aperture sequences, and n aperture sequences in the m aperture sequences have control angles with preset angles, m is a positive integer, and n is a positive integer smaller than or equal to m.
Such as: referring to fig. 6, the target power is 990W, the power corresponding to each aperture sequence is 100W, and the power corresponding to the control angle of the preset angle is 10W. At this time, the target power is obtained by subtracting the power (n is 10) corresponding to the control angle of one preset angle from the power (m is 10) corresponding to the 10 shedding sequences, that is, 990W is 10 × 100-10, and the number of the shedding sequences in each working cycle is 10, where one of the shedding sequences has the control angle of the preset angle.
And the control angle of the preset angle meets the EMC test index.
And step 403, controlling the specified device to work according to the working mode so that the heating power of the specified device is the target power.
Wherein, the opening sequence refers to the time length for keeping the specified device on in each working cycle.
When the current moment is a moment after the control angle corresponding to the opening sequence, controlling the specified device to be started; and controlling the specified device to be closed when the current time is not the time after the control angle corresponding to the opening sequence.
In summary, the power control method provided in this embodiment obtains the target power; determining the working mode of the appointed device based on the target power, wherein the working mode comprises an opening sequence for controlling the appointed device to be opened and control angles of the opening sequences, and the opening sequence refers to the duration for keeping the appointed device to be opened in each working period; controlling the designated device to work according to the working mode so that the heating power of the designated device is the target power; the problem that the service life of the heating wire is short and the service life of the hair dryer is short due to the fact that the heating wire is always kept in an open state during the working period of the hair dryer can be solved; based on the power required by each gear, the appointed device is controlled to be opened for a period of time and closed for a period of time in the working period, so that the appointed device is not always kept in an opening state, the service life of the appointed device can be prolonged, and the service life of the hair drier is prolonged.
In addition, by setting the control angle of the aperture sequence, the operating time of a given device can be more finely controlled according to the target power. That is, the control of the control angle having the preset angle can be realized without being limited to the control of the half wave.
Fig. 7 is a block diagram of a power control device according to an embodiment of the present application, and the embodiment is described by taking an example in which the power control device is applied to the power control device shown in fig. 1. The device at least comprises the following modules: a power acquisition module 710, a mode determination module 720, and a power control module 730.
A power obtaining module 710 for obtaining a target power;
a mode determining module 720, configured to determine, based on the target power, an operation mode of the designated device, where the operation mode includes an opening sequence for controlling the designated device to be turned on and a control angle of each opening sequence, and the opening sequence refers to a duration for keeping the designated device turned on in each operation cycle;
and a power control module 730, configured to control the specified device to operate according to the operating mode, so that the heating power of the specified device is the target power.
For relevant details reference is made to the above-described method embodiments.
It should be noted that: in the power control device provided in the above embodiment, when performing power control, only the division of the above functional modules is illustrated, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the power control device is divided into different functional modules to complete all or part of the above described functions. In addition, the power control apparatus and the power control method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
Fig. 8 is a block diagram of a power control device according to an embodiment of the present application, and the embodiment is described by taking an example in which the power control device is applied to the power control device shown in fig. 1. The apparatus comprises at least a processor 801 and a memory 802.
Processor 801 may include one or more processing cores, such as: 4 core processors, 8 core processors, etc. The processor 801 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 801 may also include a main processor and a coprocessor, where the main processor is a processor for processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state.
Memory 802 may include one or more computer-readable storage media, which may be non-transitory. Memory 802 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 802 is used to store at least one instruction for execution by processor 801 to implement the power control methods provided by method embodiments herein.
In some embodiments, the power control device may further include: a peripheral interface and at least one peripheral. The processor 801, memory 802 and peripheral interface may be connected by bus or signal lines. Each peripheral may be connected to the peripheral interface via a bus, signal line, or circuit board. Illustratively, peripheral devices include, but are not limited to: audio circuitry and power supplies, etc.
Of course, the power control device may also include fewer or more components, which is not limited in this embodiment.
Optionally, the present application further provides a computer-readable storage medium, in which a program is stored, and the program is loaded and executed by a processor to implement the power control method of the above-mentioned method embodiment.
Optionally, the present application further provides a computer product, which includes a computer-readable storage medium, in which a program is stored, and the program is loaded and executed by a processor to implement the power control method of the above-mentioned method embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of power control, the method comprising:
acquiring target power;
determining the working mode of the specified device based on the target power, wherein the working mode comprises an opening sequence for controlling the specified device to be opened and a control angle of each opening sequence, and the opening sequence refers to the duration of keeping the specified device to be opened in each working period;
and controlling the specified device to work according to the working mode so that the heating power of the specified device is the target power.
2. The method of claim 1, wherein determining the operating mode of the designated device based on the target power comprises:
when the target power is k times of the power corresponding to each opening sequence, determining that the working mode comprises k opening sequences, and the control angle of each opening sequence is zero degree; and k is a positive integer.
3. The method of claim 1, wherein determining the operating mode of the designated device based on the target power comprises:
when the target power is a difference value obtained by subtracting powers corresponding to n control angles from powers corresponding to m aperture sequences, it is determined that the working mode includes m aperture sequences, n aperture sequences in the m aperture sequences have control angles with preset angles, m is a positive integer, and n is a positive integer smaller than or equal to m.
4. The method of claim 3, wherein the control angle of the preset angle satisfies an EMC test specification.
5. The method according to any one of claims 1 to 4, wherein the specified device is connected to a rectifying circuit, and the rectifying circuit comprises a thyristor, and the thyristor is used for changing the output waveform of the power supply so that the modified power supply waveform has a control angle of a preset angle.
6. The method of any of claims 1 to 4, wherein said controlling said designated device to operate in said operational mode comprises:
when the current time is the time after the control angle corresponding to the opening sequence, controlling the specified device to be started;
and controlling the specified device to be closed when the current time is not the time after the control angle corresponding to the opening sequence.
7. The method of any one of claims 1 to 4, wherein the designated device is a heat generating device in a hair dryer.
8. A power control apparatus, characterized in that the apparatus comprises:
the power acquisition module is used for acquiring target power;
the mode determining module is used for determining the working mode of the specified device based on the target power, wherein the working mode comprises an opening sequence for controlling the specified device to be opened and a control angle of each opening sequence, and the opening sequence refers to the duration of keeping the specified device to be opened in each working cycle;
and the power control module is used for controlling the specified device to work according to the working mode so as to enable the heating power of the specified device to be the target power.
9. A power control apparatus, comprising a processor and a memory; the memory has stored therein a program that is loaded and executed by the processor to implement the power control method of any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the storage medium has stored therein a program which, when executed by a processor, is adapted to implement the power control method according to any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911347373.5A CN111083811A (en) | 2019-12-24 | 2019-12-24 | Power control method, device and storage medium |
| PCT/CN2020/137805 WO2021129543A1 (en) | 2019-12-24 | 2020-12-19 | Power control method and apparatus, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911347373.5A CN111083811A (en) | 2019-12-24 | 2019-12-24 | Power control method, device and storage medium |
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| CN111083811A true CN111083811A (en) | 2020-04-28 |
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| CN201911347373.5A Pending CN111083811A (en) | 2019-12-24 | 2019-12-24 | Power control method, device and storage medium |
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| CN111955885A (en) * | 2020-09-09 | 2020-11-20 | 追创科技(苏州)有限公司 | Method and device for controlling power of blower |
| WO2021129543A1 (en) * | 2019-12-24 | 2021-07-01 | 追觅科技(上海)有限公司 | Power control method and apparatus, and storage medium |
| WO2022052824A1 (en) * | 2020-09-09 | 2022-03-17 | 追觅创新科技(苏州)有限公司 | Power control method and apparatus for blower, and temperature control parameter calibration method and apparatus for blower |
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