Checking and exchanging method through real-time measurement data verification

Abstract

The invention relates to a verification exchange method through real-time measurement data verification, and the method comprises the steps: obtaining detection data, and encrypting the data through a preset asymmetric encryption algorithm to obtain encrypted data; sending the encrypted data to the server, and waiting and acquiring to-be-verified data transmitted back by the server; comparing whether the detection data is matched with the to-be-verified data; and if not, outputting verification failure prompt information. By adopting the method, the data obtained in the detection system or the monitoring system can be partially verified and remotely stored, so that the accuracy of online monitoring or online detection data storage is improved.

Description

Technical Field

[0001] The present application relates to the technical field of online monitoring and data storage, and in particular to a verification exchange method, system, computer equipment, storage medium and computer program product through real-time measurement data verification. Background Art

[0002] With the popularization of informatization in various branches of industry, the amount of data information has increased dramatically. How to accurately store the increasing amount of data has become an important issue in the data management process.

[0003] The existing Chinese invention patent publication number is CN106771730A. The present invention discloses a real-time verification device and method for the analog quantity sampling loop of an intelligent substation protection device, including a parsing module, a configuration module, a sampling module, a judgment module and an output module. The configuration module is respectively connected to the parsing module and the judgment module, and the judgment module is respectively connected to the sampling module and the output module, wherein: the parsing module is used to parse the SCD file of the intelligent substation and extract the IED device list in the SCD file; the configuration module configures the interval to which each IED device belongs according to the IED device list and classifies the IED devices according to the interval; the sampling module obtains the analog quantity measurement data of each IED device from the station control layer; the judgment module is used to perform redundancy verification on the analog quantity loop of each IED device in the interval; and the output module outputs and displays the judgment result of the judgment module.

[0004] However, as the amount of data from the substation protection device continues to increase, the local storage space is limited. Backing up the relevant data through network cloud storage will increase the problem of data storage errors and the risk of data leakage. Summary of the invention

[0005] Based on this, it is necessary to provide a verification exchange method, system, computer device, computer readable storage medium and computer program product that can improve the accuracy of off-site storage of detection data through real-time measurement data verification in order to address the above technical problems.

[0006] In a first aspect, the present application provides a verification exchange method through real-time measurement data verification, the method comprising: Acquire detection data, and encrypt the data using a preset asymmetric encryption algorithm to obtain encrypted data; Send the encrypted data to the server, wait for and obtain the data to be verified transmitted back by the server; Compare the test data with the data to be verified to see if they match; If not, a verification failure prompt message is output.

[0007] In one embodiment, the specific steps of acquiring detection data and encrypting the data using a preset asymmetric encryption algorithm to acquire encrypted data include: Obtain the detection data of the current time and the detection data obtained in the previous detection cycle, calculate the change rate of the detection data, and determine whether the change rate of the detection data exceeds a preset change rate range; If yes, the detection data of the current time is stored in the preset data temporary storage space for verification; The detection data of the current time is encrypted by a preset asymmetric encryption algorithm to obtain encrypted data, and a to-be-verified mark is added to the encrypted data.

[0008] In one embodiment, the specific steps of comparing whether the detection data matches the data to be verified include: Determine whether the data to be verified, the test data at the current time, and the test data obtained in the previous test cycle meet the following preset matching relationship: , Among them, T is the data to be verified, F n is the detection data at the current time, F n-1 The test data obtained in the previous test cycle; If yes, it means that the detection data matches the data to be verified; If not, it means that the detection data does not match the data to be verified.

[0009] In one embodiment, the method further comprises: Re-encrypt the test data stored in the preset temporary storage space and re-output it until the test data successfully matches the data to be verified; Output verification success prompt information indicating that the detection data and the data to be verified successfully match; Delete the data stored in the preset data temporary storage space.

[0010] In a second aspect, the present application also provides a verification exchange method through real-time measurement data verification, the method comprising: Wait and obtain the encrypted data; Decrypting the encrypted data using a decryption algorithm corresponding to a preset asymmetric encryption algorithm to obtain decrypted detection data; Determine whether the encrypted data has a to-be-verified mark; If so, a difference operation is performed between the decrypted detection data and the decrypted detection data obtained last time, and the difference calculation result is used as the data to be verified and sent to the detection terminal.

[0011] In one embodiment, the method further comprises: Determine whether verification failure prompt information is received; If yes, the previously obtained decrypted detection information is deleted, and the encrypted data is obtained again; Decrypt the re-obtained encrypted data and obtain the data to be verified; Send the data to be verified to the detection terminal; Waiting for and obtaining a verification success prompt message, if the verification success prompt message is obtained, the decrypted detection data corresponding to the verification success prompt message is used as detection data and stored in a preset storage space.

[0012] In a third aspect, the present application also provides a verification exchange system through real-time measurement data verification, the system comprising: It includes a detection terminal, which is used to obtain detection data and encrypt the detection data through a preset encryption algorithm to obtain encrypted data; The server module is used to obtain the encrypted data, and decrypt and process the encrypted data through a preset decryption algorithm to obtain the data to be verified; The communication module is connected to the detection module and / or the server module and is used to complete the communication between the detection terminal and the server module.

[0013] In a fourth aspect, the present application further provides a computer device, the computer device comprising a memory and a processor, the memory storing a computer program, and the processor implementing the following steps when executing the computer program: Acquire detection data, and encrypt the data using a preset asymmetric encryption algorithm to obtain encrypted data; Send the encrypted data to the server, wait for and obtain the data to be verified transmitted back by the server; Compare the test data with the data to be verified to see if they match; If not, a verification failure prompt message is output.

[0014] In a fifth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: Acquire detection data, and encrypt the data using a preset asymmetric encryption algorithm to obtain encrypted data; Send the encrypted data to the server, wait for and obtain the data to be verified transmitted back by the server; Compare the test data with the data to be verified to see if they match; If not, a verification failure prompt message is output.

[0015] In a sixth aspect, the present application further provides a computer program product, the computer program product comprising a computer program, and when the computer program is executed by a processor, the following steps are implemented: Acquire detection data, and encrypt the data using a preset asymmetric encryption algorithm to obtain encrypted data; Send the encrypted data to the server, wait for and obtain the data to be verified transmitted back by the server; Compare the test data with the data to be verified to see if they match; If not, a verification failure prompt message is output.

[0016] The above-mentioned verification and exchange method, system, computer equipment, storage medium and computer program product through real-time measurement data verification can ensure the safe transmission of detection data by adopting the detection terminal to obtain the detection data, encrypting the detection data, and then transmitting it to the server. The server side decrypts and stores the data. During the monitoring and transmission process, some important encrypted detection data are marked, and then the server decrypts and returns the data to be verified, thereby completing the random inspection of data accuracy and ensuring the accurate storage of detection data on the server side. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A diagram of an application environment for a verification exchange method by real-time measurement data verification; Figure 2 A schematic flow chart of a verification exchange method through real-time measurement data verification in one embodiment; Figure 3 A schematic flow chart of a verification exchange method through real-time measurement data verification in another embodiment; Figure 4 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0019] The verification exchange method provided by the embodiment of the present application through real-time measurement data verification can be applied to Figure 1In the application environment shown. Among them, the detection terminal 102 communicates with the server 104 through the network. The data storage system can store the data that the server 104 needs to process. The data storage system can be integrated on the server 104, or it can be placed on the cloud or other network servers. Among them, the terminal 102 can be but is not limited to various personal computers, laptops, smart phones, tablets, Internet of Things devices and portable wearable devices. The Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart car-mounted devices, etc. Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc. The server 104 can be implemented with an independent server or a server cluster consisting of multiple servers.

[0020] In one embodiment, Figure 2 As shown, a verification exchange method through real-time measurement data verification is provided, and the method is applied to Figure 1 The detection terminal in is taken as an example to illustrate, including the following steps: Step C100: Acquire detection data, and encrypt the data using a preset asymmetric encryption algorithm to obtain encrypted data.

[0021] The detection data is the measurement data or monitoring data obtained by the detection terminal, and the preset asymmetric encryption algorithm is an algorithm for encrypting the detection data. In this embodiment, the preset asymmetric encryption algorithm is the RSA algorithm, wherein the encryption key (public key) is stored in the detection terminal and is used to encrypt the detection data, and the corresponding decryption key (private key) is stored in the server. The specific steps of step C100 include: Step C110: acquiring the detection data of the current time and the detection data acquired in the previous detection cycle, calculating the change rate of the detection data, and determining whether the change rate of the detection data exceeds a preset change rate range.

[0022] Among them, the detection cycle is a preset cycle for obtaining new detection data, the detection data is the detection result data obtained by sampling according to the preset sampling cycle, the detection data at the current time is the latest detection data obtained, and the detection data obtained in the previous detection cycle is the detection data obtained a preset sampling cycle before the most recent monitoring data was obtained. In this embodiment of the present application, the preset change range is used to determine whether the detection data at the current time changes too fast compared with the detection data obtained in the previous detection cycle, that is, the detection data has undergone a large change. Compared with the detection data that changes slowly or fluctuates within a small range, the rapidly changing detection data has more reference and analysis value, and the accuracy of its storage is also more important. Therefore, by verifying the rapidly changing detection data, on the one hand, the frequency of data verification can be reduced, and the computing power resources occupied by data processing can be reduced. On the other hand, verification can be achieved for more critical rapidly changing data, thereby achieving an effect similar to sampling verification and ensuring the accuracy of key data storage.

[0023] Step C120: If yes, the detection data of the current time is stored in the preset data temporary storage space for verification.

[0024] Among them, storing the detection data in a preset temporary storage space can be used for subsequent verification to avoid lack of reference data during data verification. In one application embodiment, in addition to storing the detection data with a large change rate in the preset temporary storage space, there is another storage space for storing data of a limited number of periods from the current time, and it is updated synchronously after obtaining new detection data, thereby facilitating the calculation of the change rate.

[0025] Step C130: Encrypt the detection data at the current time by using a preset asymmetric encryption algorithm to obtain encrypted data, and add a to-be-verified mark to the encrypted data.

[0026] Through the above steps, the detection data of the current time is encrypted with an asymmetric encryption algorithm and then marked as pending verification, thereby providing a criterion for the server to determine whether to perform data verification. If the encrypted detection data has no pending verification mark, the server will only directly store the encrypted and decrypted data without executing the verification procedure.

[0027] Step C200: Send the encrypted data to the server, and wait for and obtain the data to be verified transmitted back by the server.

[0028] By executing step C200, the detection terminal can send the encrypted data to the server through the communication module to complete the data transmission.

[0029] Step C300: Compare the detected data with the data to be verified to see if they match.

[0030] The data to be verified is the data fed back by the server to the detection terminal for completing data verification. By comparing whether the detection data matches the data to be verified, it is determined whether the detection data stored on the server is the same as the detection data stored in the preset temporary storage space of the detection terminal.

[0031] The specific steps of step C300 include: Step C310: Determine whether the data to be verified, the detection data at the current time, and the detection data obtained in the previous detection cycle satisfy the following preset matching relationship: , Among them, T is the data to be verified, F n is the detection data at the current time, F n-1 The detection data obtained in the previous detection cycle.

[0032] In the embodiment of the present application, the data verification method adopted is to first encrypt and transmit the detection data and decrypt and store it through a preset encryption and decryption algorithm. For the decrypted and stored detection data, the server will perform a difference operation on the currently stored detection data and the detection data obtained in the previous detection cycle, and feed back the difference as the data to be verified to the detection terminal. The detection terminal can perform data verification through the preset matching relationship in step C310.

[0033] Step C321: If yes, it means that the detection data matches the data to be verified; Step C322: If not, it means that the detection data does not match the data to be verified.

[0034] In step C321 and step C322, when the data to be verified is equal to the difference between the detection data at the current time and the detection data obtained in the previous detection cycle, it means that the detection data matches the data to be verified. If the data to be verified is not equal to the difference between the detection data at the current time and the detection data obtained in the previous detection cycle, it means that the detection data does not match the data to be verified.

[0035] Step C400: If not, output a verification failure prompt message.

[0036] In step C400, after the detection terminal outputs a failure prompt message to the server, the server deletes the error detection data transmitted last time.

[0037] Step C500: re-encrypt the detection data stored in the preset temporary storage space and re-output it until the detection data successfully matches the data to be verified.

[0038] Step C600: Output verification success prompt information indicating that the detection data and the data to be verified are matched successfully.

[0039] Step C700: Delete the data stored in the preset data temporary storage space.

[0040] Through step C500 and step C700, the detection data that has errors during the transmission process can be resent until the verification is successful.

[0041] In one embodiment, Figure 3 As shown, a verification exchange method through real-time measurement data verification is provided, and the method is applied to Figure 1 The server in the example is used to illustrate the following steps: Step S100: Wait and obtain encrypted data.

[0042] Step S200: decrypting the encrypted data using a decryption algorithm corresponding to the preset asymmetric encryption algorithm to obtain decrypted detection data.

[0043] Step S300: Determine whether the encrypted data has a to-be-verified mark.

[0044] Step S400: If yes, then a difference operation is performed between the decrypted detection data and the decrypted detection data obtained last time, and the difference calculation result is used as the data to be verified and sent to the detection terminal.

[0045] Step S500: Determine whether verification failure prompt information is received.

[0046] Step S600: If yes, the previously acquired decrypted detection information is deleted, and the encrypted data is acquired again.

[0047] Step S700: decrypting the re-acquired encrypted data and obtaining the data to be verified; Step S800: Send the data to be verified to the detection terminal.

[0048] Step S900: Waiting for and obtaining verification success prompt information. If verification success prompt information is obtained, the decrypted detection data corresponding to the verification success prompt information is used as detection data and stored in a preset storage space.

[0049] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0050] Based on the same inventive concept, the embodiment of the present application also provides a verification exchange system through real-time measurement data verification for implementing the verification exchange method through real-time measurement data verification involved above. The implementation scheme for solving the problem provided by the system is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more embodiments of the verification exchange system through real-time measurement data verification provided below can refer to the limitations of the verification exchange method through real-time measurement data verification above, and will not be repeated here.

[0051] In one embodiment, a verification exchange system is provided by real-time measurement data verification, including: a monitoring terminal, a server module and a communication module, wherein: It includes a detection terminal, which is used to obtain detection data and encrypt the detection data through a preset encryption algorithm to obtain encrypted data; The server module is used to obtain the encrypted data, and decrypt and process the encrypted data through a preset decryption algorithm to obtain the data to be verified; The communication module is connected to the detection module and / or the server module and is used to complete the communication between the detection terminal and the server module.

[0052] Each module in the verification exchange system through real-time measurement data verification can be implemented in whole or in part by software, hardware and their combination. Each module can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to each module above.

[0053] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 4As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a verification exchange method is implemented by real-time measurement data verification. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0054] Those skilled in the art will understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0055] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented: Step C100: Acquire detection data, and encrypt the data using a preset asymmetric encryption algorithm to obtain encrypted data.

[0056] Step C200: Send the encrypted data to the server, and wait for and obtain the data to be verified transmitted back by the server.

[0057] Step C300: Compare the detected data with the data to be verified to see if they match.

[0058] Step C400: If not, output a verification failure prompt message.

[0059] Step C500: re-encrypting the detection data stored in the preset temporary storage space and re-outputting it until the detection data successfully matches the data to be verified; Step C600: outputting verification success prompt information indicating that the detection data and the data to be verified are matched successfully; Step C700: Delete the data stored in the preset data temporary storage space.

[0060] In one embodiment, when the processor executes the computer program, the processor further implements the following steps: Step S100: Waiting and obtaining encrypted data; Step S200: decrypting the encrypted data using a decryption algorithm corresponding to a preset asymmetric encryption algorithm to obtain decrypted detection data; Step S300: Determine whether the encrypted data has a to-be-verified mark; Step S400: If yes, then a difference operation is performed between the decrypted detection data and the decrypted detection data obtained last time, and the difference calculation result is used as the data to be verified and sent to the detection terminal.

[0061] Step S500: Determine whether verification failure prompt information is received; Step S600: If yes, the previously acquired decrypted detection information is deleted, and the encrypted data is acquired again; Step S700: decrypting the re-acquired encrypted data and obtaining the data to be verified; Step S800: sending the data to be verified to the detection terminal; Step S900: Waiting for and obtaining verification success prompt information. If verification success prompt information is obtained, the decrypted detection data corresponding to the verification success prompt information is used as detection data and stored in a preset storage space.

[0062] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0063] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0064] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0065] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0066] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A verification exchange method by real-time measurement data verification, characterized in that: The method comprises: Acquire detection data, and encrypt the data using a preset asymmetric encryption algorithm to obtain encrypted data; Send the encrypted data to the server, wait for and obtain the data to be verified transmitted back by the server; Compare the test data with the data to be verified to see if they match; If not, a verification failure prompt message is output.

2. The method according to claim 1, characterized in that The specific steps of acquiring the detection data and encrypting the data by using a preset asymmetric encryption algorithm to obtain the encrypted data include: Obtain the detection data of the current time and the detection data obtained in the previous detection cycle, calculate the change rate of the detection data, and determine whether the change rate of the detection data exceeds a preset change rate range; If yes, the detection data of the current time is stored in the preset data temporary storage space for verification; The detection data of the current time is encrypted by a preset asymmetric encryption algorithm to obtain encrypted data, and a to-be-verified mark is added to the encrypted data.

3. The method according to claim 2, characterized in that The specific steps of comparing whether the detection data matches the data to be verified include: Determine whether the data to be verified, the test data at the current time, and the test data obtained in the previous test cycle meet the following preset matching relationship: , Among them, T is the data to be verified, F n is the detection data at the current time, F n-1 The test data obtained in the previous test cycle; If yes, it means that the detection data matches the data to be verified; If not, it means that the detection data does not match the data to be verified.

4. The method according to claim 1, characterized in that: The method further comprises: Re-encrypt the test data stored in the preset temporary storage space and re-output it until the test data successfully matches the data to be verified; Output verification success prompt information indicating that the detection data and the data to be verified successfully match; Delete the data stored in the preset data temporary storage space.

5. A verification exchange method by real-time measurement data verification, characterized in that: The method comprises: Wait and obtain the encrypted data; Decrypting the encrypted data using a decryption algorithm corresponding to a preset asymmetric encryption algorithm to obtain decrypted detection data; Determine whether the encrypted data has a to-be-verified mark; If so, a difference operation is performed between the decrypted detection data and the decrypted detection data obtained last time, and the difference calculation result is used as the data to be verified and sent to the detection terminal.

6. The method according to claim 5, characterized in that The method further comprises: Determine whether verification failure prompt information is received; If yes, the previously obtained decrypted detection information is deleted, and the encrypted data is obtained again; Decrypt the re-obtained encrypted data and obtain the data to be verified; Send the data to be verified to the detection terminal; Waiting for and obtaining a verification success prompt message, if the verification success prompt message is obtained, the decrypted detection data corresponding to the verification success prompt message is used as detection data and stored in a preset storage space.

7. A verification exchange system by real-time measurement data verification, characterized in that: The system comprises: It includes a detection terminal, which is used to obtain detection data and encrypt the detection data through a preset encryption algorithm to obtain encrypted data; The server module is used to obtain the encrypted data, and decrypt and process the encrypted data through a preset decryption algorithm to obtain the data to be verified; The communication module is connected to the detection module and / or the server module and is used to complete the communication between the detection terminal and the server module.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

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

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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