A method and device for controlling operation of an internal fan

Abstract

The present invention discloses a method and device for controlling the operation of an internal fan, wherein the method comprises: determining whether the internal fan is in the shutdown phase; if the internal fan is determined to be in the shutdown phase, determining whether a reset condition has occurred using a preset fan incomplete shutdown flag; if a reset condition has occurred, reducing the shutdown speed of the internal fan until the internal fan is completely shut down. The above solution solves the technical problem that most existing fans use a DC fan control mode, resulting in a high number of reset conditions and affecting the stability of the unit, thereby achieving the technical effect of reducing the occurrence of reset conditions and improving the stability of the unit during use.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment control, and in particular to a method and device for controlling the operation of an internal fan. Background Art

[0002] With the continuous development of the air-conditioning industry, in order to meet users' needs for more comfortable use, most indoor fans adopt the DC fan control mode. When the grid voltage fluctuates or there are many harmonics, the air-conditioning unit will be shut down, and the motor will generate reverse electromotive force, which will cause the DC bus voltage to be too high. In severe cases, it will trigger the overvoltage protection of the switching power supply and cause the control board to reset, which will affect the normal use of the user.

[0003] Currently, no effective solution has been proposed to the problem of low stability of air-conditioning units during use caused by the DC fan control mode adopted in the prior art. Summary of the Invention

[0004] The embodiments of the present invention provide a method and device for controlling the operation of an internal fan to solve the problem of poor stability of an air-conditioning unit caused by a DC fan control mode in the prior art.

[0005] In order to solve the above technical problems, the present invention provides a control method for the operation of an internal fan, the method comprising: determining whether the internal fan is in the closing stage; when it is determined that the internal fan is in the closing stage, determining whether a reset situation occurs through a preset fan non-closing completion flag; when it is determined that a reset situation exists, reducing the closing speed of the internal fan until the internal fan is completely closed.

[0006] Furthermore, the closing speed of the internal fan is reduced until the internal fan is completely closed, including: subtracting a preset value from the decreasing speed of the current pulse width modulation duty cycle as the decreasing speed of the adjusted pulse width modulation duty cycle; and operating according to the decreasing speed of the adjusted pulse width modulation duty cycle until the duty cycle of the pulse width modulation drops to 0.

[0007] Furthermore, determining whether a reset occurs by using a preset fan not-shutdown completion flag includes: reading a value of the preset fan not-shutdown completion flag from a memory chip; and determining whether a reset occurs based on the value of the preset fan not-shutdown completion flag.

[0008] Furthermore, before determining whether a reset occurs through the preset fan non-shutdown completion flag, it also includes: when the target unit is powered on or reset, setting the preset fan non-shutdown completion flag to a first preset value; when the duty cycle of the pulse width modulation is reduced to 0, setting the preset fan non-shutdown completion flag to a second preset value; wherein, when the preset fan non-shutdown completion flag is set to the first preset value, it indicates that a reset occurs.

[0009] Furthermore, determining whether the internal fan is in the off stage includes: receiving a shut-down instruction; determining that the internal fan is in the off stage in response to the shut-down instruction; and controlling pulse width modulation according to the internal fan shut-down timing.

[0010] Furthermore, it also includes: receiving a power-on instruction; and controlling pulse width modulation according to the power-on timing of the internal fan in response to the power-on instruction.

[0011] The present invention also provides a control device for the operation of an internal fan, which includes: a first determination module for determining whether the internal fan is in a closing stage; a second determination module for determining whether a reset situation occurs through a preset fan non-closing completion flag when it is determined that the internal fan is in a closing stage; and an adjustment module for reducing the closing speed of the internal fan until the internal fan is completely closed when it is determined that a reset situation exists.

[0012] Furthermore, the adjustment module includes: a determination unit, used to subtract a preset value from the current pulse width modulation duty cycle decrease rate as the adjusted pulse width modulation duty cycle decrease rate; an adjustment unit, used to operate according to the adjusted pulse width modulation duty cycle decrease rate until the pulse width modulation duty cycle drops to 0.

[0013] The present invention also provides an air-conditioning unit, comprising the above-mentioned control device for the operation of the internal fan.

[0014] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the program implements the above method when executed by a processor.

[0015] The present invention also provides an electronic device, comprising: one or more processors; a storage device for storing one or more programs, which enables the one or more processors to implement the above method when the one or more programs are executed by the one or more processors.

[0016] By applying the technical solution of the present invention, by presetting the fan non-shutdown completion flag, it is possible to determine whether a reset occurs when the internal fan is in the shutdown stage. If a reset occurs, the fan shutdown speed is reduced to reduce the occurrence of reset situations. This can solve the technical problem that most existing fans adopt the control mode of DC fans, which causes a large number of reset situations and affects the stability of the unit, and achieves the technical effect of reducing the occurrence of reset situations and improving the stability of the unit during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a flow chart of a method for controlling the operation of an internal fan according to an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of the architecture of an internal fan control system according to an embodiment of the present invention;

[0019] Figure 3 is a flow chart of internal fan control according to an embodiment of the present invention;

[0020] Figure 4 is a structural block diagram of a control device for operating an internal fan according to an embodiment of the present invention;

[0021] Figure 5 1 is an architectural diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only some, not all, of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0023] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a," "an," "the," and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, and unless the context clearly indicates otherwise, "a plurality" generally includes at least two.

[0024] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0025] It should be understood that although the terms "first," "second," and "third" may be used to describe preset values ​​in embodiments of the present invention, these first and second preset values ​​should not be limited to these terms. These terms are merely used to distinguish the preset values. For example, without departing from the scope of embodiments of the present invention, the first preset value may also be referred to as the second preset value, and similarly, the second preset value may also be referred to as the first preset value.

[0026] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0027] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or device comprising the element.

[0028] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] Figure 1 FIG. 1 is a flow chart of a method for controlling the operation of an internal fan according to an embodiment of the present invention. Figure 1 As shown, the method includes the following steps:

[0031] Step S101, determining whether the internal fan is in the off stage;

[0032] Step S102: When it is determined that the internal fan is in the shutdown stage, determine whether a reset situation occurs through a preset fan non-shutdown completion flag;

[0033] Step S103: When it is determined that a reset condition exists, the closing speed of the internal fan is reduced until the internal fan is completely closed.

[0034] In the above example, by presetting the fan non-shutdown completion flag, it is possible to determine whether a reset occurs when the internal fan is in the shutdown stage. If a reset occurs, the fan shutdown speed is reduced to reduce the occurrence of reset situations. This can solve the technical problem that most existing fans use the DC fan control mode, which causes a large number of reset situations and affects the stability of the unit. This achieves the technical effect of reducing the occurrence of reset situations and improving the stability of the unit during use.

[0035] When reducing the closing speed of the internal fan until the internal fan is completely shut down, PWM (Pulsewidth modulation) can be used as the basis for regulation, that is, the decreasing speed of the current pulse width modulation duty cycle can be subtracted from the preset value, which is used as the decreasing speed of the adjusted pulse width modulation duty cycle; the system operates according to the decreasing speed of the adjusted pulse width modulation duty cycle until the pulse width modulation duty cycle drops to 0. When the duty cycle is 0, it indicates that the shutdown has been completely completed. That is, the PWM duty cycle is monitored during the shutdown phase of the internal fan, and the PWM output state is memorized. If a reset is found, the closing rate of the internal fan is improved to reduce the reset of the unit caused by the reverse electromotive force generated when the motor is shut down.

[0036] To more quickly determine whether a reset has occurred, a flag can be set. Specifically, a fan non-shutdown completion flag can be set. This flag indicates whether a reset has occurred. The fan non-shutdown completion flag can be stored in a memory chip. Specifically, a preset value of the fan non-shutdown completion flag can be read from the memory chip; based on the preset value of the fan non-shutdown completion flag, whether a reset has occurred can be determined.

[0037] To this end, before determining whether a reset has occurred using a preset fan non-shutdown completion flag, the preset fan non-shutdown completion flag can be set to a first preset value (e.g., 1) when the target unit is powered on or reset. When the duty cycle of the pulse width modulation (PWM) drops to 0, the preset fan non-shutdown completion flag can be set to a second preset value (e.g., 0). The setting of the preset fan non-shutdown completion flag to the first preset value indicates a reset has occurred. That is, the fan non-shutdown completion flag is only set to 0 when the duty cycle is approaching 0. This ensures accurate determination of a reset.

[0038] Specifically, determining whether the indoor fan is in the off stage may include receiving a shutdown command; responding to the shutdown command, determining that the indoor fan is in the off stage; and controlling pulse width modulation according to the indoor fan off sequence. If a power on command is received, then responding to the power on command, controlling pulse width modulation according to the indoor fan on sequence.

[0039] That is, in order to solve the problem of low fan operation reliability caused by the reverse electromotive force triggering the switching power supply overvoltage protection, the internal fan shutdown stage is monitored, the internal fan shutdown rate is adjusted, and the reverse electromotive force is reduced to avoid the switching power supply overvoltage protection, thereby enhancing the reliability and anti-interference of the internal fan operation and reducing the failure rate of the unit.

[0040] Example 2

[0041] The above method is described below in conjunction with a specific embodiment. However, it should be noted that this specific embodiment is only for better illustrating the present application and does not constitute an improper limitation to the present application.

[0042] In order to solve the problem of low fan operation reliability caused by the reverse electromotive force triggering the switching power supply overvoltage protection, in this case, by monitoring the shutdown stage of the internal fan, adjusting the internal fan shutdown rate, and reducing the reverse electromotive force, the switching power supply overvoltage protection is avoided, thereby enhancing the reliability and anti-interference of the internal fan operation and reducing the failure rate of the unit.

[0043] Specifically, during the internal fan shutdown phase, the PWM (Pulse Width Modulation) duty cycle is monitored and the PWM output state is memorized. If a reset condition is detected, the internal fan shutdown rate is adjusted to reduce the likelihood of a unit reset caused by the back electromotive force generated when the motor shuts down. The duty cycle refers to the proportion of a pulse cycle that is high. For example, a PWM wave with a high level for one second and a low level for one second has a duty cycle of 50%. PWM stands for Pulse Width Modulation, a technology that uses the digital output of a microprocessor to control analog circuits.

[0044] Considering that most fans in air conditioners use built-in drive motors, such as Figure 2 As shown, an interior fan control system is provided, which may include: a power input, a rectifier circuit, a main IC, a switching power supply, and an interior fan. The motor requires a DC 310V voltage from the air conditioning controller. This voltage is generally obtained through rectification by the controller. The rectified 310V voltage also becomes the input voltage of the controller's mainboard switching power supply. Therefore, when the motor generates a reverse electromotive force, causing the bus voltage to increase, it will also affect the input voltage of the switching power supply. If the reverse electromotive force is large, it will trigger the overvoltage protection of the switching power supply, causing the downstream power supply of the switching power supply to interrupt output, ultimately causing the power supply of the controller's main IC to be abnormal and causing the main IC to reset.

[0045] Based on the above reasons, the following methods can be used to avoid the phenomenon that the controller cannot work properly due to excessive back electromotive force: add a fan not shutting down completion flag to the controller software. When the data of the fan not shutting down completion flag changes, the unit will update the memory with the latest data; after receiving the shutdown command, the fan not shutting down completion flag is set to 1, indicating that the unit duty cycle is not 0. Then, it will be executed according to whether the PWM rate flag needs to be adjusted. When the PWM down rate adjustment flag is 0, it will first be executed according to the set PWM shutdown rate s;

[0046] If the PWM duty cycle can be executed to 0, the fan not closed completion flag will be set to 0 at this time; if the unit is in the fan off stage and the PWM duty cycle has not dropped to 0, the controller reset will be triggered due to the excessive back electromotive force. When the controller restarts, it will first read the data in the memory chip. When the memory fan not closed completion flag is read as 1, it means that a reset action occurred during the last fan off process. At the same time, the PWM decrease rate adjustment flag will be set to 1. When the fan off action is executed again, the PWM off rate will be reduced by a gradient Δs; each time the controller is restarted thereafter, the PWM off rate will be adjusted according to the fan not closed completion flag until the unit is no longer reset.

[0047] Specifically, the control process for controlling the internal fan can be as follows: Figure 3 As shown, the following steps are included:

[0048] S1: Power on / reset the air conditioner;

[0049] S2: Read the data information in the memory chip;

[0050] S3: Determine whether a power-on command is received. If a power-on command is received, execute S4. If no power-on command is received, maintain the original state.

[0051] S4: Determine whether the power-on completion flag is 1. If it is 1, execute S5. If not, execute S6.

[0052] S5: Adjust PWM falling rate flag = 1;

[0053] S6: Control PWM according to the motor start sequence;

[0054] S7: The fan operates stably according to demand;

[0055] S8: Determine whether a shutdown command is received, if received, execute S9, if not received, execute S7;

[0056] S9: Fan not closed completed flag = 1;

[0057] S10: Determine whether the PWM falling rate flag is 1, if it is 1, execute S11, if not 1, execute S12;

[0058] S11: PWM falling rate S = S-preset value;

[0059] S12: Control PWM according to the motor shutdown sequence;

[0060] S13: Determine whether PWM is 0. If not, execute S12. If PWM is 0, execute S14.

[0061] S14: Set the fan not shut down completion flag to 0.

[0062] The above method can avoid the controller resetting phenomenon caused by excessively high reverse electromotive force, thereby improving the reliability of the unit and reducing the failure rate of the equipment.

[0063] Example 3

[0064] Corresponding to Figure 1 The control method for the operation of the internal fan is introduced. This embodiment provides a control device for the operation of the internal fan, such as Figure 4 The structural block diagram of the control device for the operation of the internal fan shown in FIG. 1 includes:

[0065] The first determining module 401 is used to determine whether the internal fan is in the off stage;

[0066] The second determining module 402 is configured to determine whether a reset situation occurs by using a preset fan non-shutdown completion flag when determining that the internal fan is in the shutdown stage;

[0067] The adjustment module 403 is used to reduce the closing speed of the internal fan when it is determined that a reset situation exists, until the internal fan is completely closed.

[0068] In one embodiment, the adjustment module 403 may include: a determination unit configured to subtract a preset value from the current pulse width modulation duty cycle decrease rate to obtain the adjusted pulse width modulation duty cycle decrease rate; and an adjustment unit configured to operate according to the adjusted pulse width modulation duty cycle decrease rate until the pulse width modulation duty cycle decreases to 0.

[0069] In one embodiment, the second determining module 402 may be configured to read a preset value of a fan non-shutdown completion flag from a memory chip; and determine whether a reset occurs based on the preset value of the fan non-shutdown completion flag.

[0070] In one embodiment, the control device for the operation of the internal fan is also used to set the preset fan non-shutdown completion flag to a first preset value when the target unit is powered on or reset before determining whether a reset situation has occurred through the preset fan non-shutdown completion flag; and set the preset fan non-shutdown completion flag to a second preset value when the duty cycle of the pulse width modulation is reduced to 0; wherein, when the preset fan non-shutdown completion flag is set to the first preset value, it indicates that a reset situation has occurred.

[0071] In one embodiment, the first determining module 401 may be configured to receive a shutdown instruction; determine that the indoor fan is in a shutdown phase in response to the shutdown instruction; and control pulse width modulation according to an indoor fan shutdown sequence.

[0072] In one embodiment, the control device for the operation of the internal fan is further configured to receive a power-on instruction; and in response to the power-on instruction, control pulse width modulation according to a power-on timing sequence of the internal fan.

[0073] Example 4

[0074] like Figure 5 As shown, this embodiment provides an electronic device 10, which may include one or more (only one is shown in the figure) processors 02 (the processor 02 may include but is not limited to a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 04 for storing data, and a transmission module 06 for communication functions. It will be understood by those skilled in the art that Figure 5 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 5 More or fewer components than shown, or with Figure 5 Different configurations shown.

[0075] The memory 04 can be used to store software programs and modules of application software, such as the program instructions / modules corresponding to the control method for the operation of the internal fan in the embodiment of the present application. The processor 02 executes various functional applications and data processing by running the software programs and modules stored in the memory 04, that is, realizes the control method for the operation of the internal fan mentioned above. The memory 04 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 04 may further include a memory remotely located relative to the processor 02, and these remote memories may be connected to the electronic device 10 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0076] The transmission module 06 is used to receive or send data via a network. Specific examples of the aforementioned network may include a wireless network provided by the communication provider of the electronic device 10. In one embodiment, the transmission module 06 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In another embodiment, the transmission module 06 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0077] Example 5

[0078] An embodiment of the present invention provides a software for executing the technical solutions described in the above embodiment and preferred implementation manner.

[0079] An embodiment of the present invention provides a non-volatile computer storage medium storing computer-executable instructions. The computer-executable instructions can execute the method for controlling the operation of the internal fan in any of the above method embodiments.

[0080] The above-mentioned software is stored in the above-mentioned storage medium, which includes but is not limited to: a CD, a floppy disk, a hard disk, a rewritable memory, etc.

[0081] The above-mentioned product can execute the method provided by the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not fully described in this embodiment, please refer to the method provided by the embodiment of the present invention.

[0082] The electronic devices according to the embodiments of the present invention may be implemented in various forms, including but not limited to:

[0083] (1) Mobile communication devices: These devices are characterized by their mobile communication capabilities and are primarily designed to provide voice and data communications. These terminals include smartphones (e.g., iPhones), multimedia phones, feature phones, and low-end phones.

[0084] (2) Ultra-mobile personal computer devices: These devices fall under the category of personal computers, have computing and processing capabilities, and generally also have mobile Internet access. These terminals include PDAs, MIDs, and UMPCs, such as the iPad.

[0085] (3) Portable entertainment devices: These devices can display and play multimedia content. These devices include audio and video players (such as iPods), handheld game consoles, e-books, smart toys, and portable car navigation devices.

[0086] (4) Servers are devices that provide computing services. The server consists of a processor, hard disk, memory, device bus, etc. The server is similar to a general computer architecture, but because it needs to provide highly reliable services, it has higher requirements in terms of processing power, stability, reliability, security, scalability, and manageability.

[0087] (5) Other electronic devices with data interaction functions, such as televisions, large-screen cars, etc.

[0088] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0089] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for controlling the operation of an internal fan, characterized in that: The method comprises: Determine whether the internal fan is in the shutdown stage; When it is determined that the internal fan is in the closing stage, whether a reset situation occurs is determined by a preset fan non-closing completion flag; When it is determined that a reset situation exists, the closing speed of the internal fan is reduced until the internal fan is completely closed.

2. The method according to claim 1, characterized in that Reduce the closing speed of the internal fan until the internal fan is completely closed, including: Subtracting a preset value from the current pulse width modulation duty cycle decreasing speed to obtain the adjusted pulse width modulation duty cycle decreasing speed; The circuit operates at a decreasing speed according to the adjusted duty cycle of the pulse width modulation until the duty cycle of the pulse width modulation drops to 0.

3. The method according to claim 1, characterized in that Determine whether a reset condition occurs through the preset fan not shutting down completion flag, including: Read the preset fan not-shutdown completion flag value from the memory chip; Whether a reset situation occurs is determined according to the value of the preset fan non-shutdown completion flag.

4. The method according to claim 3, characterized in that Before determining whether a reset situation occurs through a preset fan not shutting down completion flag, it also includes: When the target unit is powered on or reset, the preset fan not-shutdown completion flag is set to a first preset value; When the duty cycle of the pulse width modulation drops to 0, the preset fan non-shutdown completion flag is set to a second preset value; Wherein, when the preset fan non-shutdown completion flag is set to the first preset value, it indicates that a reset situation occurs.

5. The method according to claim 1, wherein Determine whether the internal fan is in the shutdown stage, including: Receive shutdown command; In response to the shutdown instruction, determining that the internal fan is in a shutdown stage; Control pulse width modulation according to the internal fan shutdown sequence.

6. The method according to claim 5, characterized in that Also includes: Receive power-on command; In response to the power-on instruction, pulse width modulation is controlled according to the power-on timing of the internal fan.

7. A control device for the operation of an internal fan, characterized in that: The device comprises: The first determination module is used to determine whether the internal fan is in the off stage; The second determining module is used to determine whether a reset situation occurs by using a preset fan non-closing completion flag when it is determined that the internal fan is in the closing stage; The adjustment module is used to reduce the closing speed of the internal fan when it is determined that a reset situation exists, until the internal fan is completely closed.

8. The device according to claim 7, characterized in that The adjustment module includes: a determining unit, configured to subtract a preset value from a current decreasing speed of the duty cycle of the pulse width modulation to obtain an adjusted decreasing speed of the duty cycle of the pulse width modulation; The adjustment unit is used to operate according to the decreasing speed of the adjusted duty cycle of the pulse width modulation until the duty cycle of the pulse width modulation decreases to 0.

9. An air conditioning unit, characterized in that: Includes the control device for the operation of the internal fan as described in claim 7 or 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

11. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, causes the one or more processors to implement the method according to any one of claims 1 to 6.

Images