Communication base station power supply control method and system, electronic equipment and storage medium

Abstract

The invention provides a communication base station power supply control method and system, an electronic device and a storage medium, and relates to the technical field of power supply control, because a target charging signal of a base station battery in a peak period of electricity price is smaller than a target charging signal in a valley period of electricity price, an electric signal output by a rectifier can be reduced in the peak period of electricity price, and the power supply control efficiency is improved. The base station battery preferentially supplies power to each device in the communication base station, and the rectifier supplies power to each device in the communication base station and charges the base station battery at the electricity price off-peak period. Therefore, peak load shifting and peak load shifting power utilization can be achieved, energy can be saved, the power utilization cost can be reduced, the battery of the base station can be kept circulating, the health of the battery of the base station is guaranteed, and the service life of the battery of the base station is prolonged. Moreover, the electric signal output by the rectifier is controlled in real time through the closed-loop controller, so that the energy supply of the mains supply and the battery of the base station can be automatically controlled on the premise of ensuring the normal operation of each device in the communication base station.

Description

Technical Field

[0001] The present invention relates to the field of power control technology, and in particular to a communication base station power control method, system, electronic equipment and storage medium. Background Art

[0002] At present, the stock of communication base stations is very large. According to the requirements of the usage scenarios, it is extremely important to ensure the power supply of each equipment in the communication base stations.

[0003] However, in the prior art, the communication base station power supply prioritizes and continuously uses the mains power to continuously power various devices in the communication base station, which will cause the base station battery of the communication base station to be unable to cycle, thereby affecting the battery life, and it is also impossible to achieve intelligent and energy-saving control of the communication base station power supply. Summary of the invention

[0004] The present invention provides a communication base station power control method, system, electronic equipment and storage medium, which are used to solve the defects existing in the related technology.

[0005] The present invention provides a communication base station power control method, comprising: Acquire a real-time charging signal received by a base station battery connected to a rectifier in a communication base station in the current period; each device in the communication base station is connected to the rectifier and the base station battery respectively; the rectifier is used to access the mains; Determine a target charging signal of the base station battery in the current time period, calculate a difference between the target charging signal and the real-time charging signal, and based on the difference, apply a closed-loop controller to control the electrical signal output by the rectifier; Among them, the target charging signal of the base station battery is different in different time periods, and the different time periods include the peak electricity price period and the low electricity price period of the geographical location where the communication base station is located. The target charging signal of the base station battery in the peak electricity price period is smaller than the target charging signal in the low electricity price period.

[0006] A communication base station power control method provided by the present invention also includes: Acquire a real-time output signal of the rectifier during the current period; The closed-loop controller is applied based on the difference to control the electrical signal output by the rectifier, with the real-time output signal satisfying the rectifier output limit as a constraint.

[0007] A communication base station power control method provided by the present invention also includes: Obtaining the real-time remaining power of the base station battery in the current time period; The closed-loop controller is applied based on the difference to control the electrical signal output by the rectifier, with the constraint that the real-time remaining power meets the remaining power limit of the base station battery.

[0008] According to a communication base station power control method provided by the present invention, the obtaining of the real-time remaining power of the base station battery in the current period includes: Acquire the first real-time electric energy acquired by the base station battery and the second real-time electric energy output by the base station battery during the current period; The real-time remaining power is determined based on the first real-time power and the second real-time power.

[0009] According to a communication base station power control method provided by the present invention, the rectifier, each device in the communication base station and the base station battery are connected via a busbar.

[0010] According to a communication base station power control method provided by the present invention, the closed-loop controller is an incremental PID controller.

[0011] The present invention also provides a communication base station power supply control system, comprising: A charging signal acquisition module, used to acquire a real-time charging signal received by a base station battery connected to a rectifier in a communication base station in the current period; each device in the communication base station is respectively connected to the rectifier and the base station battery; the rectifier is used to access the mains; an output control module, configured to determine a target charging signal of the base station battery in the current period, calculate a difference between the target charging signal and the real-time charging signal, and based on the difference, apply a closed-loop controller to control the electrical signal output by the rectifier; Among them, the target charging signal of the base station battery is different in different time periods, and the different time periods include the peak electricity price period and the low electricity price period of the geographical location where the communication base station is located. The target charging signal of the base station battery in the peak electricity price period is smaller than the target charging signal in the low electricity price period.

[0012] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, a communication base station power control method as described in any one of the above is implemented.

[0013] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the communication base station power control method as described in any one of the above is implemented.

[0014] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the communication base station power control method as described in any one of the above is implemented.

[0015] The communication base station power supply control method, system, electronic device and storage medium provided by the present invention, since the target charging signal of the base station battery during the peak electricity price period is less than the target charging signal during the low electricity price period, the electrical signal output by the rectifier can be reduced during the peak electricity price period, and the base station battery is preferentially powered for each device in the communication base station, and the rectifier is powered for each device in the communication base station during the low electricity price period, and the base station battery is charged at the same time. In this way, peak shaving and valley filling and peak-shifting electricity consumption can be achieved, which can not only save energy and reduce electricity costs, but also keep the base station battery in circulation, ensure the health of the base station battery, and extend the service life of the base station battery. Moreover, by controlling the electrical signal output by the rectifier in real time through the closed-loop controller, the energy supply of the mains and the base station battery can be automatically controlled under the premise of ensuring the normal operation of each device in the communication base station, and the rectifier can be smoothly controlled to adjust the charging and discharging of the base station battery to ensure the stable operation of each device in the communication base station, so that the control process is more stable and the control result is more accurate. In addition, the method can support a variety of mains configurations by connecting to the mains through the rectifier, thereby improving the adaptability of the power supply system of the communication base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a flow chart of the communication base station power supply control method provided by the present invention.

[0018] Figure 2 It is a schematic diagram of the control process of the closed-loop controller in the communication base station power supply control method provided by the present invention.

[0019] Figure 3 It is a schematic diagram of the connection relationship of the communication base station power supply system in the communication base station power supply control method provided by the present invention.

[0020] Figure 4 It is a schematic diagram of the processing flow of the incremental PID controller in the communication base station power supply control method provided by the present invention.

[0021] Figure 5 It is a structural schematic diagram of a communication base station power supply control system provided by the present invention.

[0022] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Figure 1 FIG. 1 is a flow chart of a communication base station power control method provided in an embodiment of the present invention, such as Figure 1 As shown, the method includes: S1, obtaining a real-time charging signal received by a base station battery connected to a rectifier in a communication base station in the current period; each device in the communication base station is respectively connected to the rectifier and the base station battery; the rectifier is used to access the mains; S2, determining a target charging signal of the base station battery in the current time period, and calculating a difference between the target charging signal and the real-time charging signal, and based on the difference, applying a closed-loop controller to control the electrical signal output by the rectifier; Among them, the target charging signal of the base station battery is different in different time periods, and the different time periods include the peak electricity price period and the low electricity price period of the geographical location where the communication base station is located. The target charging signal of the base station battery in the peak electricity price period is smaller than the target charging signal in the low electricity price period.

[0025] Specifically, the communication base station power control method provided in the embodiment of the present invention is executed by a communication base station power control system, which can be configured inside the communication base station power supply, and the system can be implemented on an embedded platform.

[0026] First, step S1 is performed to obtain a real-time charging signal received by a base station battery connected to a rectifier in a communication base station in the current period. The current period may be a peak electricity price period or a valley electricity price period of the geographical location where the communication base station is located. The peak electricity price period may be a period when the electricity price is greater than or equal to a first threshold, such as daytime, and the valley electricity price period may be a period when the electricity price is less than or equal to a second threshold, such as nighttime. The specific values ​​of the first threshold and the second threshold may be determined according to actual conditions and are not specifically limited here.

[0027] Each device in the communication base station can be connected to the rectifier and the base station battery as a load. The rectifier is used to access the mains. Each device in the communication base station can be powered by the rectifier or the base station battery. At the same time, the rectifier can also charge the base station battery.

[0028] Therefore, the rectifier and base station battery constitute the communication base station power supply system. The rectifier is the supplier of system energy, and each device in the communication base station as a load is a consumer of system energy. The base station battery switches between the consumer and supplier of system energy according to the charging and discharging status.

[0029] Then execute step S2 to determine the target charging signal of the base station battery in the current time period. The target charging signals of the base station battery are different in different time periods. Different time periods include the peak electricity price period and the low electricity price period of the geographical location of the communication base station. The size of the target charging signal in different time periods can be set as needed. Here, the target charging signal of the base station battery in the peak electricity price period is smaller than the target charging signal in the low electricity price period. Therefore, during the peak electricity price period, the base station battery preferentially supplies power to each device in the communication base station, and during the low electricity price period, the rectifier supplies power to each device in the communication base station and charges the base station battery at the same time. In this way, peak shaving and valley filling and staggered electricity consumption can be achieved, which can not only save energy and reduce electricity costs, but also keep the base station battery in circulation, ensure the health of the base station battery, and extend the service life of the base station battery.

[0030] Afterwards, if Figure 2 The figure shows a schematic diagram of the control process of the closed-loop controller. The difference e between the target charging signal u and the real-time charging signal X(s) is calculated, and then the difference e is input into the closed-loop controller. The closed-loop controller is applied to minimize the difference and output a control signal F(s) to control the electrical signal output by the rectifier so that the electrical signal output by the rectifier can ensure that the real-time charging signal of the base station battery reaches the target charging signal, or is close to the target charging signal.

[0031] It is understandable that the target charging signal, the real-time charging signal and the electrical signal output by the rectifier can all be current signals or voltage signals. The closed-loop controller used can be a Proportional-Integration-Differential (PID) controller, such as a position PID controller and an incremental PID controller.

[0032] The communication base station power control method provided in the embodiment of the present invention first obtains the real-time charging signal received by the base station battery connected to the rectifier in the communication base station in the current period; each device in the communication base station is connected to the rectifier and the base station battery respectively; the rectifier is used to access the mains; then the target charging signal of the base station battery in the current period is determined, and the difference between the target charging signal and the real-time charging signal is calculated. Based on the difference, a closed-loop controller is applied to control the electrical signal output by the rectifier. Since the target charging signal of the base station battery during the peak electricity price period is less than the target charging signal during the valley electricity price period, the electrical signal output by the rectifier can be reduced during the peak electricity price period, and the base station battery gives priority to powering each device in the communication base station. During the valley electricity price period, the rectifier powers each device in the communication base station and charges the base station battery at the same time. In this way, peak shaving and valley filling and peak-shifting electricity consumption can be achieved, which can not only save energy and reduce electricity costs, but also keep the base station battery in circulation, ensure the health of the base station battery, and extend the service life of the base station battery. Moreover, by controlling the electrical signal output by the rectifier in real time through the closed-loop controller, the energy supply of the mains and the base station battery can be automatically controlled under the premise of ensuring the normal operation of each device in the communication base station, and the rectifier can be smoothly controlled to adjust the charging and discharging of the base station battery to ensure the stable operation of each device in the communication base station, making the control process more stable and the control result more accurate. In addition, the method can support a variety of mains configurations by connecting the rectifier to the mains, thereby improving the adaptability of the communication base station power supply system.

[0033] Based on the above embodiments, a communication base station power control method provided in an embodiment of the present invention is as follows: Figure 3 As shown, the communication base station power supply system includes a rectifier 1 and a base station battery 2, each device in the communication base station serves as a load 3, and the rectifier 1, the base station battery 2 and the load 3 are all connected through a busbar 4.

[0034] Specifically, the busbar refers to the copper or aluminum bar that connects the main switch in the electrical cabinet with the switches in each branch circuit. The surface of the busbar is insulated and its main function is to serve as a conductor.

[0035] The connection between the rectifier 1, the base station battery 2 and the load 3 is realized through the busbar, which can make the connection relationship simpler and improve the safety of the communication base station power supply system.

[0036] On the basis of the above embodiments, the communication base station power control method provided in the embodiments of the present invention further includes: Acquire a real-time output signal of the rectifier during the current period; The closed-loop controller is applied based on the difference to control the electrical signal output by the rectifier, with the real-time output signal satisfying the rectifier output limit as a constraint.

[0037] Specifically, the method also includes obtaining a real-time output signal of the rectifier in the current period. In order to prevent the closed-loop controller from losing control and ensure stable operation of the load, in the closed-loop control process of the closed-loop controller, it is necessary to use the real-time output signal to meet the rectifier output limit as a constraint condition, and use the difference to apply the closed-loop controller to control the electrical signal output by the rectifier. The rectifier output limit means that the electrical signal output by the rectifier needs to be between the output lower limit and the output upper limit.

[0038] Based on the above embodiment, it also includes: Obtaining the real-time remaining power of the base station battery in the current time period; The closed-loop controller is applied based on the difference to control the electrical signal output by the rectifier, with the constraint that the real-time remaining power meets the remaining power limit of the base station battery.

[0039] Specifically, in order to further ensure the sustainability and health of the base station battery, the real-time remaining power of the base station battery in the current period can also be obtained, and then the real-time remaining power meets the remaining power limit of the base station battery as a constraint condition, and the difference is used to apply a closed-loop controller to control the electrical signal output by the rectifier. The remaining power limit of the base station battery means that the remaining power of the base station battery needs to be greater than or equal to the lower limit of the remaining power to power the load. When the remaining power of the base station battery is less than the upper limit of the remaining power, it needs to be charged but not discharged to avoid excessive consumption of the base station battery.

[0040] Based on the above embodiment, the step of obtaining the real-time remaining power of the base station battery in the current period includes: Acquire the first real-time electric energy acquired by the base station battery and the second real-time electric energy output by the base station battery during the current period; The real-time remaining power is determined based on the first real-time power and the second real-time power.

[0041] Specifically, when obtaining the real-time remaining power of the base station battery in the current period, the first real-time power obtained by the base station battery and the second real-time power output by the base station battery in the current period can be obtained first. The first real-time power is the real-time power output by the rectifier to charge the base station battery, and the second real-time power is the real-time power output by the base station battery to power the load.

[0042] Then, the difference between the first real-time electric energy and the second real-time electric energy is calculated, and the difference is the real-time remaining power of the base station battery.

[0043] Through the real-time remaining power, the health status of the base station battery can be monitored in real time, ensuring the health of the base station battery while saving energy.

[0044] Based on the above embodiment, the closed-loop controller is an incremental PID controller.

[0045] Specifically, the closed-loop controller used in the embodiment of the present invention may be an incremental PID controller, such as Figure 4 As shown, the input of the incremental PID controller is the difference between the target charging signal and the real-time charging signal of the base station battery in the current period, and the output is the control signal of the rectifier.

[0046] Control quantity of incremental PID controller at time t The discretization representation of can be: ; Control quantity of incremental PID controller at time t-1 The discretization representation of can be: ; and The difference It can be expressed as:

[0047] After simplification, we can get: ; in, is the proportional coefficient of the incremental PID controller, is the integral coefficient of the incremental PID controller, is the differential coefficient of the incremental PID controller. are the differences at time t, j, t-1, and t-2 respectively, P is the proportional parameter, and Related, I is the integral parameter, and the variable related, D is the differential parameter, and the variable Related.

[0048] Compared with the position PID controller, the incremental PID controller processes the input difference incrementally. In the incremental PID controller, its output is the change compared with the output at the previous moment, rather than the absolute value. This method can reduce error accumulation and is more suitable for the implementation of digital control systems. The operation process of the incremental PID controller is simpler, which may be more advantageous for certain specific applications.

[0049] like Figure 5 As shown, based on the above embodiment, a communication base station power supply control system is provided in an embodiment of the present invention, including: The charging signal acquisition module 51 is used to acquire the real-time charging signal received by the base station battery connected to the rectifier in the communication base station in the current period; each device in the communication base station is respectively connected to the rectifier and the base station battery; the rectifier is used to access the mains; an output control module 52, configured to determine a target charging signal of the base station battery in the current period, calculate a difference between the target charging signal and the real-time charging signal, and based on the difference, apply a closed-loop controller to control the electrical signal output by the rectifier; Among them, the target charging signal of the base station battery is different in different time periods, and the different time periods include the peak electricity price period and the low electricity price period of the geographical location where the communication base station is located. The target charging signal of the base station battery in the peak electricity price period is smaller than the target charging signal in the low electricity price period.

[0050] On the basis of the above embodiment, the communication base station power supply control system provided in the embodiment of the present invention further includes an output signal acquisition module for: Acquire a real-time output signal of the rectifier during the current period; The output control module is specifically used for: The closed-loop controller is applied based on the difference to control the electrical signal output by the rectifier, with the real-time output signal satisfying the rectifier output limit as a constraint.

[0051] On the basis of the above embodiment, the communication base station power control system provided in the embodiment of the present invention further includes a remaining power acquisition module, which is used to: Obtaining the real-time remaining power of the base station battery in the current time period; The output control module is also specifically used for: The closed-loop controller is applied based on the difference to control the electrical signal output by the rectifier, with the constraint that the real-time remaining power meets the remaining power limit of the base station battery.

[0052] On the basis of the above-mentioned embodiment, in the communication base station power supply control system provided in the embodiment of the present invention, the remaining power acquisition module is specifically used for: Acquire the first real-time electric energy acquired by the base station battery and the second real-time electric energy output by the base station battery during the current period; The real-time remaining power is determined based on the first real-time power and the second real-time power.

[0053] On the basis of the above-mentioned embodiment, in the communication base station power supply control system provided in the embodiment of the present invention, the rectifier, each device in the communication base station and the base station battery are connected via a busbar.

[0054] On the basis of the above-mentioned embodiment, in the communication base station power supply control system provided in the embodiment of the present invention, the closed-loop controller is an incremental PID controller.

[0055] Specifically, the functions of each module in the communication base station power control system provided in the embodiment of the present invention correspond one-to-one to the operating procedures of each step in the above-mentioned method embodiment, and the effects achieved are also consistent. Please refer to the above-mentioned embodiment for details, and no further details will be given in the embodiment of the present invention.

[0056] Figure 6 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 6 As shown, the electronic device may include: a processor 610, a communications interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communications interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the communication base station power control method provided in the above embodiments.

[0057] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the relevant technology or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0058] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the communication base station power control method provided in the above embodiments.

[0059] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the communication base station power control method provided in the above-mentioned embodiments.

[0060] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0061] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for 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 some parts of the embodiment.

[0062] 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 embodiments of the present invention.

Claims

1. A communication base station power control method, It is characterized in that include: Obtaining a real-time charging signal received by a base station battery connected to a rectifier in a communication base station during the current period; Each device in the communication base station is connected to the rectifier and the base station battery respectively; the rectifier is used to access the mains; Determine a target charging signal of the base station battery in the current time period, calculate a difference between the target charging signal and the real-time charging signal, and based on the difference, apply a closed-loop controller to control the electrical signal output by the rectifier; Among them, the target charging signal of the base station battery is different in different time periods, and the different time periods include the peak electricity price period and the low electricity price period of the geographical location where the communication base station is located. The target charging signal of the base station battery in the peak electricity price period is smaller than the target charging signal in the low electricity price period.

2. The communication base station power control method according to claim 1, It is characterized in that Also includes: Acquire a real-time output signal of the rectifier during the current period; The closed-loop controller is applied based on the difference to control the electrical signal output by the rectifier, with the real-time output signal satisfying the rectifier output limit as a constraint.

3. The communication base station power control method according to claim 1, It is characterized in that Also includes: Obtaining the real-time remaining power of the base station battery in the current time period; The closed-loop controller is applied based on the difference to control the electrical signal output by the rectifier, with the constraint that the real-time remaining power meets the remaining power limit of the base station battery.

4. The communication base station power control method according to claim 3, It is characterized in that The obtaining of the real-time remaining power of the base station battery in the current period includes: Acquire the first real-time electric energy acquired by the base station battery and the second real-time electric energy output by the base station battery during the current period; The real-time remaining power is determined based on the first real-time power and the second real-time power.

5. The communication base station power control method according to any one of claims 1 to 4, It is characterized in that The rectifier, each device in the communication base station and the base station battery are connected via a busbar.

6. The communication base station power control method according to any one of claims 1 to 4, It is characterized in that The closed-loop controller is an incremental PID controller.

7. A communication base station power supply control system, It is characterized in that include: A charging signal acquisition module, used to acquire a real-time charging signal received by a base station battery connected to a rectifier in a communication base station in the current period; Each device in the communication base station is connected to the rectifier and the base station battery respectively; the rectifier is used to access the mains; an output control module, configured to determine a target charging signal of the base station battery in the current period, calculate a difference between the target charging signal and the real-time charging signal, and based on the difference, apply a closed-loop controller to control the electrical signal output by the rectifier; Among them, the target charging signal of the base station battery is different in different time periods, and the different time periods include the peak electricity price period and the low electricity price period of the geographical location where the communication base station is located. The target charging signal of the base station battery in the peak electricity price period is smaller than the target charging signal in the low electricity price period.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, It is characterized in that When the processor executes the program, the communication base station power control method according to any one of claims 1 to 6 is implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, It is characterized in that When the computer program is executed by a processor, the communication base station power control method according to any one of claims 1 to 6 is implemented.

10. A computer program product comprising a computer program, It is characterized in that When the computer program is executed by a processor, the communication base station power control method according to any one of claims 1 to 6 is implemented.

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