Cold box energy-saving and cost-reducing system and control method thereof
By using a frequency converter in the cold box to adjust the operating frequency and using the energy storage system to manage the peaks and valleys of electricity, the problem of high energy consumption of container cold boxes is solved, and the energy-saving and cost-saving effect of cold box electricity is achieved.
Patent Information
- Application Number
- CN202411852613.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-02-14
AI Technical Summary
The existing container cold containers consume more energy and have higher energy expenditure after being stored in the cold container special yard, and their energy expenditure is high, so the potential for energy conservation and cost reduction has not been fully tapped.
The cold box energy saving and energy consumption reduction mode is adopted to adjust the operating frequency through the cold box frequency converter to reduce energy consumption, and use the energy storage system to store energy during the electricity consumption period or the level period of the mains. Release electricity during peak electricity consumption and reduce electricity during peak electricity consumption.
The energy consumption of cold box electricity is reduced, and the electricity consumption cost is reduced by using the difference in electricity prices of peaks and valleys of the city power peaks and flats, alleviating the problem of high energy consumption of cold box.
Smart Images
Figure CN119448375A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electricity management, and in particular to a cold box energy-saving and fee-reducing system and a control method thereof. Background Art
[0002] Container cold boxes are divided into frozen containers and refrigerated containers. The main difference between the two lies in the difference in refrigeration capacity and set temperature. Container terminal cold box services include cold box loading and unloading, cold box storage and cold box power supply services. Among them, the cold box power supply service requires the container terminal to connect the cold box to the power supply and monitor the power consumption in time. Usually, the cold box is loaded and unloaded by the container gantry crane, and after being stored in the cold box special yard, the plug of the cold box air conditioner is connected to the socket of the cold box rack by manual plugging and unplugging. The cold box uses 380V AC power supply and requires 24-hour uninterrupted power supply. According to the settings on the control panel, the cold box automatically starts the compressor for refrigeration after the power is turned on. After reaching the preset temperature, the cold box compressor automatically enters the idle or shutdown state. After the temperature of the cold box rises above the set temperature, the compressor restarts the refrigeration. Existing container terminal cold boxes have high energy consumption and high energy expenditure, and the potential for energy saving and cost reduction has not been fully tapped. Summary of the invention
[0003] The purpose of the present invention is to provide a cold box energy-saving and cost-reduction system and a control method thereof in order to solve at least one of the above-mentioned technical problems.
[0004] In the first aspect, an embodiment of the present invention provides a cold box energy-saving and fee-reduction system, comprising: a cold box energy-saving system and a cold box fee-reduction system; the cold box energy-saving system and the cold box fee-reduction system are connected to the secondary side of the same intelligent transformer; wherein the cold box energy-saving system comprises a cold box rack switch cabinet and a cold box frequency conversion power supply; the input end of the cold box rack switch cabinet is connected to the output end of the intelligent transformer, the input end of the cold box frequency conversion power supply is connected to the output end of the cold box rack switch cabinet, the output end of the cold box frequency conversion power supply is connected to a cold box electric box, and the cold box electric box is connected to a container cold box; the container cold box comprises a refrigerated container and / or refrigerated container; the cold box fee reduction system includes an energy storage system switch cabinet and an energy storage system; the input end of the energy storage system switch cabinet is connected to the secondary side power supply bus of the intelligent transformer, and the output end of the energy storage system switch cabinet is connected to the energy storage system; the intelligent transformer is used to step down and transform the high voltage of the mains, and monitor the power supply parameters and power quality of the mains; the cold box variable frequency power supply is used to convert the industrial frequency mains into electric energy of a preset frequency; the energy storage system is used to store energy during the off-peak period or the level period of mains electricity consumption, and to connect the secondary side power supply bus of the intelligent transformer to the grid for power supply during the peak period of mains electricity consumption.
[0005] Furthermore, there are multiple cold box rack switch cabinets and multiple cold box variable frequency power supplies, wherein one cold box rack switch cabinet is connected to one cold box variable frequency power supply; and the output end of each cold box variable frequency power supply is connected to a cold box power box.
[0006] Furthermore, the cold box electrical box is connected to the container cold box via a cold box socket group.
[0007] Furthermore, the energy storage system includes: an energy storage management system, a battery system, a bus system, an energy storage inverter, a monitoring system, a fire protection system and a temperature control system; wherein the energy storage monitoring system is used to monitor and manage the cold box fee reduction system; the battery system is used to store and release electric energy; the bus system is used to manage the electric energy of multiple battery packs in the battery system; the energy storage inverter is used to synchronously adjust the voltage and current of the secondary power supply bus of the intelligent transformer and the battery system; the monitoring system is used to perform video monitoring of the internal and external surrounding environment of the cold box fee reduction system; the fire protection system is used to perform smoke and fire warnings and emergency fire fighting for the cold box fee reduction system; and the temperature control system is used to perform thermal management of the battery system.
[0008] Furthermore, the operating modes of the energy storage inverter include a rectification mode and an inversion mode; wherein the rectification mode includes: real-time monitoring of the AC voltage, AC current and frequency of the secondary power supply bus of the intelligent transformer, and converting the AC power of the secondary power supply bus of the intelligent transformer into DC power compatible with the battery system to charge the battery system for energy storage; the inversion mode includes: real-time monitoring of the DC voltage and DC current of the bus system, and converting the DC power of the battery system into AC power compatible with the secondary power supply bus of the intelligent transformer for grid-connected power supply.
[0009] Furthermore, the preset frequency includes 40 Hz-50 Hz.
[0010] In a second aspect, an embodiment of the present invention further provides a control method for a cold box energy-saving and fee-reduction system, including: obtaining the peak, flat and valley time periods of the mains to which the smart transformer is connected; the peak, flat and valley time periods include: peak power consumption time periods, flat power consumption time periods and valley power consumption time periods; based on the voltage of the energy storage system, calculating the power data of the battery system of the energy storage system; based on the peak, flat and valley time periods of the energy storage system and the power data, controlling the energy storage system to store energy or connecting the secondary side power supply bus of the smart transformer to the grid for power supply.
[0011] Furthermore, based on the peak, flat and valley time periods of the energy storage system and the power data, the energy storage system is controlled to store energy or to connect the secondary power supply bus of the intelligent transformer to the grid for power supply, including: if the energy storage system is in the peak power consumption time period and the power data is greater than a first preset threshold, the energy storage system is controlled to execute a first control program on the battery system; if the energy storage system is in the flat power consumption time period or the valley power consumption time period and the power data is less than a second preset threshold, the energy storage system is controlled to execute a second control program on the battery system.
[0012] Furthermore, the first control program includes: controlling the energy storage inverter of the energy storage system to convert the DC power of the battery system into AC power that is compatible with the secondary side power supply bus of the smart transformer and connected to the grid for power supply; the second control program includes: controlling the energy storage inverter to convert the AC power of the secondary side power supply bus of the smart transformer into DC power that is compatible with the battery system to charge and store energy in the battery system.
[0013] In a third aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and when the computer instructions are executed by a processor, the method provided in the embodiment of the present invention is implemented.
[0014] The present invention provides a cold box energy-saving and cost-reduction system and a control method thereof, which adopts a mode of simultaneously carrying out cold box energy saving and energy cost reduction, so that the cold box electricity consumption is reduced, and the cold box is controlled by a cold box variable frequency power supply, and the operating frequency can be adjusted according to needs, which is more energy-saving and efficient; at the same time, the energy storage system can utilize the difference in peak and valley electricity prices of the city electricity to store energy during periods of lower electricity prices, and release less electricity from the peak electricity consumption of the power grid during periods of higher electricity prices, thereby reducing the electricity cost of the cold box, and alleviating the technical problem of high energy consumption of container cold boxes after being stored in a special cold box yard in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0016] Figure 1 A schematic diagram of a cold box energy saving and cost reduction system provided by an embodiment of the present invention;
[0017] Figure 2 A schematic diagram of an energy storage system provided by an embodiment of the present invention;
[0018] Figure 3 A flow chart of a control method for a cold box energy-saving and cost-reduction system provided in an embodiment of the present invention.
[0019] In the figure: 10. Cold box energy-saving system, 11. Cold box rack switch cabinet, 12. Cold box frequency conversion power supply, 13. Cold box electric box, 14., 20. Cold box fee reduction system, 21. Energy storage system switch cabinet, 22. Energy storage system, 221. Energy storage management system, 222. Battery system, 223. Convergence system, 224. Energy storage inverter, 225. Monitoring system, 226. Fire protection system, 227. Temperature control system, 30. Intelligent transformer. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.
[0021] Embodiment 1
[0022] Figure 1 Schematic diagram of a cold box energy saving and cost reduction system provided according to an embodiment of the present invention. Figure 1 As shown, the system includes: a cold box energy-saving system 10 and a cold box fee reduction system 20; the cold box energy-saving system 10 and the cold box fee reduction system 20 are connected to the secondary side of the same smart transformer 30.
[0023] Specifically, the cold box energy-saving system 10 includes a cold box rack switch cabinet 11 and a cold box frequency conversion power supply 12; the input end of the cold box rack switch cabinet 11 is connected to the output end of the intelligent transformer 30, the input end of the cold box frequency conversion power supply 12 is connected to the output end of the cold box rack switch cabinet 11, the output end of the cold box frequency conversion power supply 12 is connected to the cold box electric box 13, and the cold box electric box 13 is connected to the container cold box; wherein, the container cold box includes a frozen container and / or a refrigerated container.
[0024] Specifically, Figure 1 As shown, the cold box fee reduction system 20 includes an energy storage system switch cabinet 21 and an energy storage system 22; the input end of the energy storage system switch cabinet 21 is connected to the secondary side power supply bus 31 of the intelligent transformer 30, and the output end of the energy storage system switch cabinet 21 is connected to the energy storage system 22.
[0025] Specifically, the intelligent transformer 30 is used to step down and transform the high voltage of the mains electricity, and monitor the power supply parameters and power quality of the mains electricity, wherein the power supply parameters of the mains electricity include the voltage and current of each phase.
[0026] Optionally, the smart transformer 30 is also used to monitor its own status.
[0027] In an optional implementation provided by the embodiment of the present invention, the intelligent transformer 30 is used to convert the incoming line voltage of 10KV into an outgoing voltage of 380V 50Hz.
[0028] Specifically, the cold box rack switch cabinet 11 is used to control the on / off between the cold box variable frequency power supply 12 and the secondary side power supply bus 31 of the intelligent transformer 30 .
[0029] The cold box variable frequency power supply 12 is used to convert the industrial frequency mains electricity into electric energy of a preset frequency. Preferably, the preset frequency includes 40Hz-50Hz.
[0030] In an optional implementation provided by an embodiment of the present invention, the cold box variable frequency power supply 12 converts 380V 50Hz AC power into 380V 40Hz-50Hz AC power for use by the cold box power box 13.
[0031] Specifically, the compressor of the main energy-consuming component of the container cold box in the prior art is a fixed-frequency compressor, which works by driving the compressor through a motor with a fixed frequency. When the temperature in the cold box reaches the set temperature, the compressor stops working, and when the temperature in the cold box rises, the compressor starts again. This working mode causes certain fluctuations in the temperature control of the cold box, because the frequent switching of the compressor causes the temperature in the cold box to fluctuate. The cold box variable frequency power supply 12 used in the embodiment of the present invention can adjust the operating frequency as needed, which is more energy-saving and efficient.
[0032] Specifically, the energy storage system switch cabinet 21 is used to control the on / off between the energy storage system 22 and the secondary power supply bus 31 of the intelligent transformer 30 .
[0033] The energy storage system 22 is used to store energy during the off-peak or high-peak periods of the city electricity consumption, and to connect the secondary power supply bus 31 of the smart transformer 30 to the grid for power supply during the peak period of the city electricity consumption.
[0034] Preferably, if Figure 1 As shown, there are multiple cold box rack switch cabinets 11 and cold box variable frequency power supplies 12, wherein one cold box rack switch cabinet 11 is correspondingly connected to one cold box variable frequency power supply 12.
[0035] Specifically, the output end of each cold box variable frequency power supply 12 is connected to a cold box power box 13 .
[0036] In an optional implementation provided by the embodiment of the present invention, Figure 1As shown, the cold box electric box 13 is connected to the container cold box through the cold box socket group 14. Among them, the cold box socket group 14 is provided with a plurality of cold box sockets, and the number of cold box sockets in each cold box socket group 14 can be configured with different numbers according to actual production needs.
[0037] Figure 2 Schematic diagram of an energy storage system provided according to an embodiment of the present invention. Figure 2 As shown, the energy storage system 22 includes: an energy storage management system 221, a battery system 222, a bus system 223, an energy storage converter 224, a monitoring system 225, a fire protection system 226 and a temperature control system 227. The bus system 223 is connected to the energy storage system switch cabinet 21 through the energy storage converter 224, the bus system 223 and the energy storage management system 221 are connected to the battery system 222 respectively, and the monitoring system 225, the fire protection system 226 and the temperature control system 227 are connected to the energy storage management system 221 respectively.
[0038] Specifically, the energy storage monitoring system 221 is used to monitor and manage the cold box fee reduction system 20;
[0039] A battery system 222 for storing and releasing electrical energy;
[0040] The confluence system 223 is used to manage the confluence of electric energy of multiple battery packs in the battery system 222;
[0041] The energy storage converter 224 is used to synchronously adjust the voltage and current of the secondary power supply bus 31 of the intelligent transformer 30 and the battery system 222;
[0042] Monitoring system 225, used for video monitoring of the internal and external surrounding environment of the cold box fee reduction system 20;
[0043] The fire protection system 226 is used to provide smoke and fire warning and emergency fire protection for the cold box fee reduction system 20; specifically, the fire protection system 226 is used to provide timely warning and take emergency fire protection measures when abnormal conditions such as smoke and fire occur in the cold box fee reduction system 20, so as to prevent and control the occurrence and spread of dangerous conditions;
[0044] The temperature control system 227 is used for thermal management of the battery system 222 and for monitoring the ambient temperature of the energy storage system 22. Optionally, the temperature control system 227 uses liquid cooling for thermal management of the battery system 222, wherein the liquid cooling system is composed of a liquid cooling machine, a liquid cooling pipe, a module cooling box, and the like.
[0045] In an optional implementation provided by an embodiment of the present invention, the operation mode of the energy storage converter 224 includes a rectification mode and an inversion mode; wherein,
[0046] The rectification mode includes: real-time monitoring of the AC voltage, AC current and frequency of the secondary power supply bus 31 of the smart transformer 30, and converting the AC power of the secondary power supply bus 31 of the smart transformer 30 into DC power compatible with the battery system 222 to charge and store energy in the battery system 222, so as to ensure stable power supply to the busbar system 223 and the battery system 222;
[0047] The inverter mode includes: real-time monitoring of the DC voltage and DC current of the busbar system 223, and converting the DC power of the battery system 222 into AC power that is compatible with the secondary power supply bus 31 of the smart transformer 30 for grid-connected power supply.
[0048] In an optional implementation provided by an embodiment of the present invention, the energy storage inverter 224 converts direct current into 380V 40HZ-50Hz alternating current to supply grid-connected power to the secondary power supply bus 31 of the intelligent transformer 30 during the discharge phase of the battery system 222; the energy storage inverter 224 converts the 380V50Hz alternating current of the secondary power supply bus 31 of the intelligent transformer 30 into direct current of about 600V compatible with the battery system 222 for charging and energy storage during the energy storage phase of the battery system 222.
[0049] From the above description, it can be seen that the present invention provides a cold box energy-saving and cost-reduction system. Through technical transformation, a mode of simultaneous cold box and energy cost reduction is adopted, so that the energy consumption of cold box electricity is reduced. At the same time, the energy storage system can utilize the difference between peak and valley electricity prices of the city electricity to store energy during periods of lower electricity prices and release electricity during periods of higher electricity prices to reduce peak electricity consumption from the power grid, thereby reducing the electricity cost of the cold box.
[0050] Embodiment 2
[0051] Figure 3 1 is a flow chart of a control method of a cold box energy saving and cost reduction system provided according to an embodiment of the present invention. Figure 3 As shown, the method specifically comprises the following steps:
[0052] Step S302, obtaining the peak, flat and valley time periods of the mains electricity to which the smart transformer is connected; the peak, flat and valley time periods include: a peak power consumption time period, a flat power consumption time period and a valley power consumption time period.
[0053] Step S304: Calculate the power data of the battery system of the energy storage system based on the voltage of the energy storage system.
[0054] Step S306, based on the peak, flat and valley time periods and power data of the energy storage system, control the energy storage system to store energy or connect the secondary side power supply bus of the smart transformer to the grid for power supply.
[0055] Specifically, step S306 further includes the following steps:
[0056] Step S3061, if the energy storage system is in the peak power consumption period and the power data is greater than a first preset threshold, then control the energy storage system to execute a first control program on the battery system;
[0057] Step S3062: If the energy storage system is in a peak period or a valley period, and the power data is less than a second preset threshold, the energy storage system is controlled to execute a second control program on the battery system.
[0058] Specifically, the first control program includes: controlling the energy storage converter of the energy storage system to convert the direct current of the battery system into alternating current that is compatible with the secondary side power supply bus of the intelligent transformer and connected to the grid for power supply;
[0059] The second control program includes: controlling the energy storage converter to convert the AC power of the secondary side power supply bus of the intelligent transformer into DC power compatible with the battery system to charge the battery system and store energy.
[0060] A control method for a cold box energy-saving and cost-reduction system provided by an embodiment of the present invention adopts different control strategies during different mains peak, flat and valley time periods. Specifically, during the level power consumption period and the valley power consumption period, the energy storage inverter is controlled to rebuild the energy storage of the battery system according to the power data of the battery system; during the peak power consumption period, the energy storage inverter is controlled to invert the power of the battery system to connect the secondary side power supply bus of the intelligent transformer to the grid for power supply, so as to reduce the power consumption pressure of the container cold box during the mains power consumption peak period, thereby reducing the high-priced electricity cost during the mains power consumption peak period, and achieving the purpose of reducing the electricity cost of the container cold box.
[0061] The present invention also provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed by a processor, the method provided in the embodiment of the present invention is implemented.
[0062] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A cold box energy saving and cost reduction system, characterized in that: include: A cold box energy saving system and a cold box fee reduction system; the cold box energy saving system and the cold box fee reduction system are connected to the secondary side of the same intelligent transformer; wherein, The cold box energy-saving system includes a cold box rack switch cabinet and a cold box variable frequency power supply; the input end of the cold box rack switch cabinet is connected to the output end of the intelligent transformer, the input end of the cold box variable frequency power supply is connected to the output end of the cold box rack switch cabinet, the output end of the cold box variable frequency power supply is connected to the cold box electric box, and the cold box electric box is connected to the container cold box; the container cold box includes a frozen container and / or a refrigerated container; The cold box fee reduction system includes an energy storage system switch cabinet and an energy storage system; the input end of the energy storage system switch cabinet is connected to the secondary side power supply bus of the intelligent transformer, and the output end of the energy storage system switch cabinet is connected to the energy storage system; The intelligent transformer is used to step down and transform the high voltage of the mains electricity, and monitor the power supply parameters and power quality of the mains electricity; The cold box frequency conversion power supply is used to convert the industrial frequency mains electricity into electric energy of a preset frequency; The energy storage system is used to store energy during the off-peak period or the level period of the mains electricity consumption, and to connect the secondary side power supply bus of the intelligent transformer to the grid for power supply during the peak period of the mains electricity consumption.
2. The cold box energy saving and cost reduction system according to claim 1 is characterized in that: The number of the cold box rack switch cabinets and the cold box variable frequency power supply is multiple, wherein one cold box rack switch cabinet is connected to one cold box variable frequency power supply; The output end of each cold box frequency conversion power supply is connected to a cold box power box.
3. The cold box energy saving and cost reduction system according to claim 1 is characterized in that: The cold box electric box is connected to the container cold box via a cold box socket group.
4. The cold box energy saving and cost reduction system according to claim 1 is characterized in that: The energy storage system includes: an energy storage management system, a battery system, a confluence system, an energy storage converter, a monitoring system, a fire protection system and a temperature control system; wherein, The energy storage monitoring system is used to monitor and manage the cold box fee reduction system; The battery system is used for storing and releasing electrical energy; The convergence system is used to manage the convergence of electric energy of multiple battery packs in the battery system; The energy storage converter is used to synchronously adjust the voltage and current of the secondary power supply bus of the intelligent transformer and the battery system; The monitoring system is used to perform video monitoring of the internal and external surrounding environment of the cold box fee reduction system; The fire protection system is used to provide smoke and fire warning and emergency fire protection for the cold box fee reduction system; The temperature control system is used to perform thermal management on the battery system.
5. The cold box energy saving and cost reduction system according to claim 4 is characterized in that: The operation modes of the energy storage converter include rectification mode and inversion mode; wherein, The rectification mode includes: real-time monitoring of the AC voltage, AC current and frequency of the secondary power supply bus of the intelligent transformer, and converting the AC power of the secondary power supply bus of the intelligent transformer into DC power compatible with the battery system to charge and store energy in the battery system; The inverter mode includes: real-time monitoring of the DC voltage and DC current of the busbar system, and converting the DC power of the battery system into AC power grid-connected power compatible with the secondary power supply bus of the smart transformer.
6. The cold box energy saving and cost reduction system according to claim 1 is characterized in that: The preset frequency includes 40 Hz-50 Hz.
7. A control method for the cold box energy saving and cost reduction system according to claim 1, characterized in that: include: Obtain the peak, flat and valley time periods of the mains electricity to which the smart transformer is connected; the peak, flat and valley time periods include: a peak power consumption time period, a flat power consumption time period and a valley power consumption time period; Calculating the power data of the battery system of the energy storage system based on the voltage of the energy storage system; Based on the peak, flat and valley time periods of the energy storage system and the power data, the energy storage system is controlled to store energy or the secondary side power supply bus of the smart transformer is connected to the grid for power supply.
8. The control method according to claim 7, characterized in that: Based on the peak, flat and valley time periods of the energy storage system and the power data, controlling the energy storage system to store energy or connecting the secondary side power supply bus of the smart transformer to the grid for power supply includes: If the energy storage system is within the peak power consumption period and the power data is greater than a first preset threshold, controlling the energy storage system to execute a first control program on the battery system; If the energy storage system is in the level consumption period or the valley consumption period, and the power data is less than a second preset threshold, the energy storage system is controlled to execute a second control program on the battery system.
9. The control method according to claim 8, characterized in that: The first control program includes: controlling the energy storage converter of the energy storage system to convert the direct current of the battery system into alternating current that is compatible with the secondary side power supply bus of the intelligent transformer and connected to the grid for power supply; The second control program includes: controlling the energy storage converter to convert the alternating current of the secondary power supply bus of the intelligent transformer into direct current compatible with the battery system to charge and store energy in the battery system.
10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed by a processor, the method according to any one of claims 7 to 9 is implemented.