A method, device and equipment for calibrating a plurality of float liquid level meters and a storage medium

Abstract

The application belongs to the technical field of liquid level measurement, and discloses a method, device and equipment for calibrating multiple float liquid level meters and a storage medium, which comprises the following steps: S1, setting the measurement temperature of the multiple float liquid level meters as the temperature of the calibration liquid; S2, inputting the liquid level measurement points and the readings of the multiple float liquid level meters into a movable type grid table, and calibrating the readings based on the program of the movable type grid table; if the readings are qualified, the calibration is successful; if the readings are not qualified, step S3 is performed; S3, obtaining the unqualified readings, the target liquid level measurement points corresponding to the unqualified readings, the target float liquid level meters and the adjustment opinions of the liquid level meters; S4, adjusting the target float liquid level meters according to the adjustment opinions of the liquid level meters, inputting the readings of the target liquid level measurement points and the target float liquid level meters into the movable type grid table, and if the readings are qualified, the calibration is successful; if the readings are not qualified, returning to step S3. The application can achieve the effect of accurately calibrating multiple float liquid level meters.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid level measurement, and in particular to a method and device for calibrating multiple float liquid level gauges, equipment and a storage medium. BACKGROUND

[0002] The existing calibration method for float liquid level gauges uses visual measurement of the scale to determine whether the reading of the measurement point of the liquid level gauge is correct when calibrating multiple float liquid level gauges at the same time, and adjusts the reading of the measurement point of the liquid level gauge according to experience until it is unified with the ground scale. The visual measurement and adjustment according to experience are both subjective and cannot ensure the accuracy of the calibration of multiple float liquid level gauges. Therefore, there is a technical problem of excessive subjective factors and inaccurate calibration when calibrating multiple float liquid level gauges in the prior art. SUMMARY

[0003] The present application provides a method and device for calibrating multiple float liquid level gauges, which can accurately calibrate multiple float liquid level gauges.

[0004] In a first aspect, the present application provides a method for calibrating multiple float liquid level gauges, which is applied to a float liquid level gauge calibration device. The method comprises the following steps:

[0005] Step S1: setting the measurement temperature of the multiple float liquid level gauges to be the temperature of the calibration liquid in the liquid measuring cylinder;

[0006] Step S2: inputting multiple different liquid level measurement points and multiple readings of the multiple float liquid level gauges at the multiple different liquid level measurement points into a movable type grid table, and calibrating the multiple readings based on the program of the movable type grid table. If all the calibration results are qualified, the calibration is successful. If the calibration results are not qualified, step S3 is performed;

[0007] Step S3: obtaining the unqualified reading, the target liquid level measurement point corresponding to the unqualified reading, the target float liquid level gauge corresponding to the unqualified reading, and the adjustment opinion of the liquid level gauge;

[0008] Step S4: adjusting the target float liquid level gauge according to the adjustment opinion of the liquid level gauge, inputting the target liquid level measurement point and the reading of the adjusted target float liquid level gauge at the target liquid level measurement point into the movable type grid table. If the reading is qualified, the calibration is successful. If the reading is not qualified, return to step S3.

[0009] Further, the method further comprises the following steps:

[0010] After the calibration is successful, the measurement temperature of the multiple float liquid level gauges is set to be the temperature of the running liquid;

[0011] The multiple readings of the multiple float level gauges at the same liquid level measurement point are obtained, and whether the difference between any two readings in the multiple readings exceeds a preset standard deviation value is determined; if not, the verification ends;

[0012] If yes, the two readings whose difference exceeds the preset standard deviation value and the two float level gauges corresponding to the two readings are obtained, and the two float level gauges are adjusted until the difference between the two readings of the two float level gauges is within the preset standard deviation value.

[0013] Further, the temperature of the verification liquid in the liquid measuring cylinder is measured by an infrared temperature detector.

[0014] Further, the adjustment of the target float level gauge according to the float level gauge adjustment opinion includes:

[0015] The sliding rheostat of the target float level gauge is adjusted according to the float level gauge adjustment opinion.

[0016] Further, the float level gauge adjustment opinion includes the target number of turns that the bolt of the sliding rheostat of the target float level gauge needs to rotate.

[0017] Further, the preset standard deviation value is 35 mm.

[0018] In a second aspect, the embodiments of the present application provide a verification device for multiple float level gauges, which is applied to a float level gauge verification device, and the device includes:

[0019] A temperature setting module is configured to set the measurement temperature of the multiple float level gauges as the temperature of the verification liquid in the liquid measuring cylinder.

[0020] A reading verification module is configured to input multiple different liquid level measurement points and multiple readings of the multiple float level gauges at the multiple different liquid level measurement points into a movable type grid table, and to verify the multiple readings based on a program of the movable type grid table; if the verification result is qualified, the verification is successful.

[0021] A reading acquisition module is configured to acquire an unqualified reading, a target liquid level measurement point corresponding to the unqualified reading, a target float level gauge corresponding to the unqualified reading, and a float level gauge adjustment opinion when the verification result is unqualified.

[0022] A float level gauge adjustment module is configured to adjust the target float level gauge according to the float level gauge adjustment opinion, to input the reading of the target liquid level measurement point and the adjusted target float level gauge at the target liquid level measurement point into the movable type grid table, and to verify the reading; if the reading is qualified, the verification is successful.

[0023] Further, the device further includes:

[0024] a temperature back-off module, configured to set the measured temperature of the plurality of float liquid level gauges to the running liquid temperature after the verification is successful;

[0025] a deviation value judgment module, configured to obtain a plurality of readings of the plurality of float liquid level gauges at the same liquid level measurement point, and determine whether a difference between any two readings in the plurality of readings exceeds a preset standard deviation value; if not, the verification is ended;

[0026] a deviation value adjustment module, configured to, when the difference between the two readings exceeds the preset standard deviation value, obtain the two readings whose difference exceeds the preset standard deviation value and two float liquid level gauges corresponding to the two readings, and adjust the two float liquid level gauges until the difference between the two readings of the two float liquid level gauges is within the preset standard deviation value.

[0027] In a third aspect, an embodiment of the present application provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to execute the steps of the verification method of the plurality of float liquid level gauges according to any one of the above embodiments.

[0028] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, having a computer program stored thereon, and the computer program is executable by a processor to implement the steps of the verification method of the plurality of float liquid level gauges according to any one of the above embodiments.

[0029] In summary, compared with the prior art, the technical scheme provided by the embodiments of the present application has at least the following beneficial effects:

[0030] The verification method of the plurality of float liquid level gauges provided by the embodiments of the present application verifies the readings measured by the plurality of float liquid level gauges at different liquid level measurement points by using the movable type grid table, and gives adjustment suggestions for the liquid level gauges if the readings are unqualified, and adjusts the liquid level gauges according to the adjustment suggestions, thereby avoiding the inaccurate verification of the liquid level gauges caused by the subjective verification methods such as visual reading of the liquid level gauges and adjustment according to experience, and realizing accurate verification of the plurality of float liquid level gauges. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A flowchart of the verification method of the plurality of float liquid level gauges is provided for one exemplary embodiment of the present application.

[0032] Figure 2 A flowchart of the deviation value verification step is provided for one exemplary embodiment of the present application.

[0033] Figure 3 A structural relationship diagram of the float liquid level gauge and the liquid measuring cylinder is provided for one exemplary embodiment of the present application.

[0034] Figure 4A structural diagram of a verification device of a plurality of float liquid level meters is provided for an example embodiment of the present application.

[0035] Figure 5 A structural diagram of a verification device of a plurality of float liquid level meters is provided for another example embodiment of the present application. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] Referring to Figure 1 The embodiments of the present application provide a verification method of a plurality of float liquid level meters, which is applied to a float liquid level meter verification device to execute the example that the subject is the float liquid level meter verification device. The method can specifically include the following steps.

[0038] In step S1, the measurement temperatures of the plurality of float liquid level meters are all set as the temperature of the verification liquid in the liquid measuring cylinder.

[0039] Referring to Figure 2 The number of the liquid measuring cylinders is the same as the number of the float liquid level meters, and each float liquid level meter is placed in a different liquid measuring cylinder. The verification liquid in the liquid measuring cylinder can be water, and the bottom ends of the plurality of liquid measuring cylinders are connected to each other through a water pipe. Therefore, the verification liquid, the temperature, and the liquid level of the verification liquid in the liquid measuring cylinders are all the same.

[0040] The measurement temperature of the float liquid level meter is set as the temperature of the verification liquid in the liquid measuring cylinder, because if the measurement temperatures are set as different temperatures, the readings of the float liquid level meters can also be different at the same liquid level measuring point.

[0041] In step S2, a plurality of different liquid level measuring points and a plurality of readings of the plurality of float liquid level meters at the plurality of different liquid level measuring points are input into a movable type grid table. The plurality of readings are verified based on a program of the movable type grid table. If the verification result is all qualified, the verification is successful. If the verification result is unqualified, step S3 is executed.

[0042] The movable type grid table is a V6 table, which is a liquid level verification special table with a set calculation method provided by the production party of the float liquid level meter of this type. The parameters and the verification program in the table are provided by the production party.

[0043] Specifically, when the calibration liquid is not yet filled in the liquid level measuring cylinder, multiple readings of the multiple float liquid level gauges at the liquid level measuring 0 point are obtained, and then the calibration liquid is filled in the liquid level measuring cylinder to obtain multiple readings of the multiple float liquid level gauges at the liquid level measuring full point; the multiple readings at the liquid level measuring 0 point and 0 point, and the multiple readings at the liquid level measuring full point and full point are input into the V6 table program; verification is performed, and if the verification result is error-free, the verification is directly displayed as qualified.

[0044] Step S3: obtaining an unqualified reading, a target liquid level measuring point corresponding to the unqualified reading, a target float liquid level gauge corresponding to the unqualified reading, and a liquid level gauge adjustment opinion;

[0045] Specifically, if an unqualified reading that does not match a liquid level measuring point is found after verification, the unqualified reading, the target liquid level measuring point corresponding to the unqualified reading, and the target float liquid level gauge to which the reading belongs are output, and at the same time, a liquid level gauge adjustment opinion is directly output by the V6 table verification program. For example, if the unqualified reading is determined to be unqualified because, at the target liquid level measuring point, a qualified reading should be within a certain corresponding range, and the unqualified reading exceeds the range, the reading of the target float liquid level gauge should be adjusted downward.

[0046] Step S4: adjusting the target float liquid level gauge according to the liquid level gauge adjustment opinion, inputting the target liquid level measuring point and the reading of the adjusted target float liquid level gauge at the target liquid level measuring point into the movable type table, and if the reading is verified as qualified, the verification is successful; if not, returning to step S3.

[0047] The above embodiment provides a verification method for multiple float liquid level gauges. The movable type table is used to verify the readings of the multiple float liquid level gauges at different liquid level measuring points. If the readings are unqualified, a liquid level gauge adjustment opinion is given, and the liquid level gauge is adjusted according to the liquid level gauge adjustment opinion, thereby avoiding inaccurate liquid level gauge verification caused by subjective verification methods such as visual liquid level gauge reading and adjustment based on experience, and achieving accurate verification of the multiple float liquid level gauges.

[0048] In some embodiments, referring to Figure 3 The method can further include:

[0049] Step S5: after the verification is successful, setting the measurement temperature of the multiple float liquid level gauges to the running liquid temperature.

[0050] This is because the calibration liquid in the above liquid measuring cylinder is usually tap water with a normal temperature, but the float liquid level gauges are usually placed in a deaerator for liquid level measurement during daily operation, and the temperature of the steam-water mixture in the deaerator is relatively high. Therefore, the temperature parameter set in the float liquid level gauge will affect the reading of the liquid level gauge, and thus the temperature parameter needs to be adjusted back to the running liquid temperature for rechecking.

[0051] Step S6, obtaining multiple readings of the multiple float liquid level gauges at the same liquid level measurement point, and determining whether the difference between any two readings of the multiple readings exceeds a preset standard deviation value.

[0052] In the specific implementation process, the maximum value and the minimum value of the multiple readings of the multiple float liquid level gauges at a certain liquid level measurement point are obtained, if the difference between the maximum value and the minimum value is greater than the preset standard deviation value, then it is determined whether there is a difference between other two readings exceeding the preset standard deviation value, if the difference between the maximum value and the minimum value is less than or equal to the preset standard deviation value, then the calibration is directly ended.

[0053] Step S7, if no, then the calibration is ended, if yes, then the two readings whose difference exceeds the preset standard deviation value and the two float liquid level gauges corresponding to the two readings are obtained, and the two float liquid level gauges are adjusted until the difference between the two readings of the two float liquid level gauges is within the preset standard deviation value.

[0054] The above embodiment solves the problem that the float liquid level gauges still have small deviations after preliminary calibration and cannot be eliminated through the V6 table calibration process; when multiple float liquid level gauges work together, further reading comparison is needed to ensure that the small deviations of the multiple float liquid level gauges are within the preset standard deviation range, thereby ensuring the accuracy of the overall work of the liquid level gauges.

[0055] In some embodiments, the temperature of the calibration liquid in the liquid measuring cylinder can be measured by an infrared temperature detector.

[0056] The above embodiment realizes accurate detection of the temperature of the calibration liquid in the liquid measuring cylinder.

[0057] In some embodiments, the above adjustment of the target float liquid level gauge according to the liquid level gauge adjustment opinion includes adjusting the sliding rheostat of the target float liquid level gauge according to the liquid level gauge adjustment opinion.

[0058] In some embodiments, the above liquid level gauge adjustment opinion can include the target number of rotations of the screw of the sliding rheostat of the target float liquid level gauge.

[0059] Specifically, the reading of the float liquid level gauge is displayed as a current value, so the resistance value of the sliding rheostat can be adjusted by rotating the screw of the sliding rheostat, thereby changing the current value of the reading.

[0060] The above embodiment adjusts the reading displayed by the float liquid level gauge by adjusting the sliding rheostat, which can accurately adjust the small deviation of the reading of the float liquid level gauge, so that the reading of the float liquid level gauge is more accurate.

[0061] In some embodiments, the preset standard deviation value is 35 millimeters.

[0062] 35mm is the deviation value set in the operation logic of the nuclear power plant, and the preset standard deviation value is set to 35mm in the above embodiment, so as to ensure the accuracy of the overall work of the multiple float liquid level gauges in the nuclear power plant.

[0063] Please refer to Figure 4 In another embodiment of the present application, a verification device for multiple float liquid level gauges is provided, which is applied to a float liquid level gauge verification device, and specifically can include:

[0064] The temperature setting module 101 is configured to set the measurement temperature of the multiple float liquid level gauges to the temperature of the verification liquid in the liquid measuring cylinder.

[0065] The reading verification module 102 is configured to input the multiple different liquid level measurement points and the multiple readings of the multiple float liquid level gauges at the multiple different liquid level measurement points into a movable type table, and verify the multiple readings based on the program of the movable type table; if the verification result is qualified, the verification is successful.

[0066] The reading acquisition module 103 is configured to acquire the unqualified reading, the target liquid level measurement point corresponding to the unqualified reading, the target float liquid level gauge corresponding to the unqualified reading, and the liquid level gauge adjustment opinion when the verification result is unqualified.

[0067] The liquid level gauge adjustment module 104 is configured to adjust the target float liquid level gauge according to the liquid level gauge adjustment opinion, input the target liquid level measurement point and the reading of the adjusted target float liquid level gauge at the target liquid level measurement point into the movable type table, and if the reading verification is qualified, the verification is successful.

[0068] The verification device for multiple float liquid level gauges provided in the above embodiment verifies the readings measured by the multiple float liquid level gauges at different liquid level measurement points through the reading verification module 102, and gives the liquid level gauge adjustment opinion if the readings are unqualified, and adjusts the liquid level gauge according to the liquid level gauge adjustment opinion, so as to avoid the inaccurate liquid level gauge verification caused by the subjective verification methods such as visual liquid level gauge reading and experience-based adjustment, and realize the accurate verification of the multiple float liquid level gauges.

[0069] Please refer to Figure 5 In some embodiments, the device can further include:

[0070] The temperature callback module 105 is configured to set the measurement temperature of the multiple float liquid level gauges to the running liquid temperature after the verification is successful.

[0071] The deviation value judgment module 106 is configured to acquire the multiple readings of the multiple float liquid level gauges at the same liquid level measurement point, and judge whether the difference between any two readings in the multiple readings exceeds the preset standard deviation value; if not, the verification is ended.

[0072] The bias value adjustment module 107 is configured to, when the difference between the two readings exceeds the preset standard deviation value, acquire the two float liquid level meters corresponding to the two readings whose difference exceeds the preset standard deviation value, and adjust the two float liquid level meters until the difference between the two readings of the two float liquid level meters is within the preset standard deviation value.

[0073] The above embodiment solves the problem that the float liquid level meter still has a small deviation after preliminary verification and cannot be eliminated through the V6 table verification process. When multiple float liquid level meters work together, further reading comparison is needed to ensure that the small deviation of the multiple float liquid level meters is within the preset standard deviation range, thereby ensuring the accuracy of the overall work of the liquid level meter.

[0074] The specific limitations of the verification device for the multiple float liquid level meters provided in the embodiment can be referred to the above embodiments of the verification method for the multiple float liquid level meters, which will not be repeated here. Each module in the verification device for the multiple float liquid level meters can be realized by software, hardware, and a combination thereof, in whole or in part. Each module can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to each module.

[0075] The embodiment of the present application provides a computer device, which can include a processor, a memory, a network interface and a database connected by a system bus. The processor of the computer device is configured 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, a computer program and a database. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is configured to communicate with an external terminal through a network connection. The computer program is executed by the processor, so that the processor performs the steps of the verification method for the multiple float liquid level meters according to any one of the above embodiments.

[0076] The working process, working details and technical effects of the computer device provided in the embodiment can be referred to the above embodiments of the verification method for the multiple float liquid level meters, which will not be repeated here.

[0077] The embodiment of the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to realize the steps of the method for verifying the multiple-float liquid level meter according to any one of the above embodiments. The computer readable storage medium refers to a carrier for storing data, and can include, but is not limited to, a floppy disk, an optical disk, a hard disk, a flash memory, a USB flash disk and / or a memory stick, and the computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices.

[0078] The working process, working details and technical effects of the computer readable storage medium provided by the embodiment can be referred to the above embodiment of the method for verifying the multiple-float liquid level meter, and details are not repeated here.

[0079] Those skilled in the art can understand that all or part of the processes of the above-mentioned embodiment methods can be completed by a computer program instructing related hardware, and the computer program can be stored in a non-volatile computer readable storage medium. When the computer program is executed, the computer program can include the processes of the above-mentioned embodiments. Any reference to memory, storage, database or other medium used in the embodiments provided by the present application can include non-volatile and / or volatile memory. The non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. The volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM) and memory bus dynamic RAM (RDRAM).

[0080] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that the combination is within the scope of the present application.

[0081] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific and detailed manner, but should not be construed as limiting the scope of the patent. It should be noted that for those skilled in the art, several modifications 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 patent of the present application should be subject to the appended claims.

Claims

1. A calibration method for a multi-float level gauge, characterized in that, The method includes: Step S1: Set the measuring temperature of all float level gauges to the temperature of the calibration liquid in the liquid measuring cylinder. Step S2: Input multiple readings from multiple different liquid level measuring points and multiple float level gauges at multiple different liquid level measuring points into a type table. The program based on the type table verifies the multiple readings. If all verification results are qualified, the verification is successful. If the verification results are unqualified, proceed to step S3. Step S3: Obtain the unqualified reading, the target liquid level measurement point corresponding to the unqualified reading, the target float liquid level gauge corresponding to the unqualified reading, and the liquid level gauge adjustment opinion; Step S4: Adjust the target float level gauge according to the adjustment opinion. Input the target level measurement point and the adjusted reading of the target float level gauge at the target level measurement point into the type table. If the reading is qualified, the verification is successful; if not, return to step S3. After successful verification, the measurement temperature of multiple float level gauges is set to the operating liquid temperature. Multiple readings of the multiple float level gauges at the same liquid level measurement point are obtained, and it is determined whether the difference between any two of the multiple readings exceeds a preset standard deviation value. If not, the verification ends. If so, the two readings with a difference exceeding the preset standard deviation value and the two float level gauges corresponding to the two readings are obtained, and the two float level gauges are adjusted until the difference between the two readings of the two float level gauges is within the preset standard deviation value.

2. The method according to claim 1, characterized in that, The temperature of the calibration liquid in the liquid measuring cylinder is measured by an infrared temperature detector.

3. The method according to claim 1, characterized in that, The step of adjusting the target float level gauge according to the level gauge adjustment opinion includes: The sliding resistance of the target float level gauge is adjusted according to the adjustment opinions.

4. The method according to claim 3, characterized in that, The adjustment instructions for the level gauge include the target number of rotations required for the sliding resistance bolt of the target float level gauge.

5. The method according to claim 1, characterized in that, The preset standard deviation value is 35 mm.

6. A calibration device for a multi-float level gauge, characterized in that, An apparatus for calibrating float level gauges, comprising: The temperature setting module is used to set the measurement temperature of multiple float level gauges to the temperature of the calibration liquid in the liquid measuring cylinder. The reading verification module is used to input multiple readings from multiple different liquid level measuring points and multiple float level gauges at multiple different liquid level measuring points into a type table, and to verify the multiple readings based on the type table; if all verification results are qualified, the verification is successful. The reading acquisition module is used to acquire the unqualified reading, the target liquid level measurement point corresponding to the unqualified reading, the target float liquid level gauge corresponding to the unqualified reading, and the liquid level gauge adjustment opinion when the verification result is unqualified; The liquid level gauge adjustment module is used to adjust the target float liquid level gauge according to the liquid level gauge adjustment opinion, and input the target liquid level measurement point and the adjusted reading of the target float liquid level gauge at the target liquid level measurement point into the movable type table. If the reading is qualified, the verification is successful. The temperature callback module is used to set the measured temperature of multiple float level gauges to the operating liquid temperature after successful verification. The deviation value judgment module is used to acquire multiple readings of the multiple float level gauges at the same level measurement point, and determine whether the difference between any two of the multiple readings exceeds a preset standard deviation value; if not, the verification ends. The deviation adjustment module is used to acquire two readings with a difference exceeding the preset standard deviation value and two float level gauges corresponding to the two readings when the difference between two readings exceeds the preset standard deviation value, and adjust the two float level gauges until the difference between the two readings of the two float level gauges is within the preset standard deviation value.

7. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method as described in any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method as described in any one of claims 1 to 5.

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