Method and device for calibrating a measuring instrument based on response characteristics of a calibration process

Abstract

This invention relates to the field of metrological instrument verification technology, and proposes a method and apparatus for the verification and identification of metrological instruments based on the response characteristics of the verification process. This method, without changing the values ​​at the verification points and while complying with the verification procedures, constructs a standard verification process and a control verification process, and collects process response data of the metrological instrument under different verification process conditions. Furthermore, it establishes a correspondence between the process response characteristics and the organization of the verification process and the loading path, and performs alignment analysis on the correspondence at the same verification point location to determine whether the response relationship of the process response characteristics changes with the verification process and whether it remains consistent under different loading path conditions. Through this method, the verification behavior of the metrological instrument can be identified. This method does not rely on a single criterion of indication error, and can characterize the response behavior of the metrological instrument at the verification process level, making it applicable to various verification and identification scenarios for metrological instruments.

Description

Technical Field

[0001] This invention relates to the field of metrological instrument verification technology, specifically to a metrological instrument verification and identification method and apparatus based on the response characteristics of the verification process. Background Technology

[0002] The testing and calibration of existing measuring instruments typically follow legal verification procedures, determining whether the instrument's indication error meets the allowable error requirements under specified verification point values, loading sequence, and stability conditions. This type of method primarily focuses on the final measurement result at the verification point, lacking analysis of the instrument's response behavior during the verification process.

[0003] In practical applications, it has been found that some measuring instruments may, when they detect that they are in a verification state or a specific verification process, make targeted adjustments to the measurement results through internal programs, so that they perform qualified under verification conditions, but produce systematic deviations under actual operating conditions. This type of behavior is usually related to the sequence of verification operations, loading rhythm, or repetition method, and is highly concealed, making it difficult to identify by simply adding verification points or improving the accuracy of the standard instrument.

[0004] Existing technologies often rely on disassembly and testing, procedural review, or alteration of calibration values ​​to address the aforementioned issues. However, these methods have limited applicability in legal metrological verification scenarios and may violate existing verification procedures. Therefore, it is necessary to propose a new verification and identification scheme for metrological instruments. Summary of the Invention

[0005] In view of the technical problems mentioned in the background, the present invention provides a method and apparatus for the verification and identification of measuring instruments based on the response characteristics of the verification process.

[0006] This invention provides a method for the verification and identification of measuring instruments based on the response characteristics of the verification process, comprising the following steps:

[0007] S1, the measuring instrument under test performs the standard verification process under the preset verification point values. During the loading process at each verification point, the first response data is collected according to the unified sampling method, including the value stabilization time, the value change process, and the time interval of measurement data output.

[0008] S2, while keeping the values ​​of each verification point unchanged and within the allowable range of the verification procedure, adjust the loading sequence of the verification points, the distribution of waiting time between adjacent verification points, and the loading return method to construct a reference verification process.

[0009] S3, Verify the measuring instrument to be tested according to the aforementioned comparative verification process, and collect second response data that is consistent with the data type of the first response data;

[0010] S4. For the same verification point value, establish the correspondence between process response characteristics and verification process organization method and loading path based on the first response data and the second response data respectively, and perform alignment analysis on the correspondence under the same verification point position to determine whether the response relationship of the process response characteristics changes under the condition of verification process change, and whether the correspondence remains consistent under different loading path conditions.

[0011] S5 determines and outputs the verification and identification results of the measuring instrument under test based on the alignment analysis results.

[0012] The present invention also provides a measuring instrument verification and identification device based on the response characteristics of the verification process, comprising:

[0013] The data acquisition module is used to perform standard verification procedures on the measuring instrument under test at preset verification point values. During the loading process at each verification point, it collects the first response data according to a unified sampling method, including the stabilization time of the indicated value, the process of the indicated value change, and the time interval of the measurement data output.

[0014] The process construction module is used to adjust the loading order of the verification points, the waiting time distribution between adjacent verification points, and the loading return method, while keeping the values ​​of each verification point unchanged and within the allowable range of the verification procedure, so as to construct a reference verification process.

[0015] The comparison acquisition module is used to verify the measuring instrument under test according to the comparison verification process and acquire second response data that is consistent with the first response data type.

[0016] The relationship analysis module is used to establish a correspondence between process response characteristics and verification process organization method and loading path based on the first response data and the second response data for the same verification point value, respectively, and to perform alignment analysis on the correspondence under the same verification point location to determine whether the response relationship of the process response characteristics changes under the condition of verification process change, and whether the correspondence remains consistent under different loading path conditions.

[0017] The identification output module is used to determine and output the verification and identification results of the measuring instrument under test based on the results of the alignment analysis.

[0018] The present invention also provides a readable medium storing instructions that, when executed on an electronic device, cause the electronic device to perform any of the methods described above.

[0019] The present invention also provides a computer program product comprising instructions that, when executed on an electronic device, cause the electronic device to perform the method described in any of the preceding claims.

[0020] Compared with existing technologies, this invention, by introducing a comparative verification process and systematically analyzing the response characteristics during the verification process while keeping the verification point values ​​unchanged and in compliance with the verification procedures, achieves the identification of the verification behavior of measuring instruments at the verification process level. Compared with traditional methods that rely solely on indication error results, it can more comprehensively reflect the response differences of measuring instruments under different verification process organization methods and loading path conditions. By establishing the correspondence between process response characteristics and verification process organization methods and loading paths, and performing alignment analysis at the same verification point location, the identifiability and stability of response differences caused by changes in the verification process are improved.

[0021] The solution of the present invention does not require changes to the existing calibration values ​​and calibration procedures, is easy to implement in the existing calibration system, has strong applicability, and is conducive to improving the reliability and consistency of calibration and identification results of measuring instruments. Attached Figure Description

[0022] Figure 1 This is a schematic flowchart of a metrological instrument verification and identification method based on the response characteristics of the verification process disclosed in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram illustrating one application scenario of the method disclosed in the embodiments of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of a metrological instrument verification and identification device based on the response characteristics of the verification process, as disclosed in an embodiment of the present invention. Detailed Implementation

[0025] To facilitate understanding of the technical solution of this invention, the following detailed description of the metrological instrument verification and identification scheme based on the response characteristics of the verification process is provided in conjunction with specific embodiments. It should be noted that the following embodiments are only used to explain the technical concept of this invention and do not constitute a limitation on the scope of protection of this invention. Those skilled in the art can make reasonable adjustments or substitutions to the relevant technical details without departing from the technical concept of this invention, and all such adjustments should fall within the scope of protection of this invention.

[0026] In this embodiment, the method can be deployed in a metrology institution, verification laboratory, or industrial site verification and identification device. The device may include a verification control terminal, a data acquisition terminal, a process control terminal, and an analysis and processing terminal, etc., for performing verification operations on various measuring instruments (such as electricity meters, pressure gauges, flow meters, weighing instruments, etc.) and completing verification and identification analysis.

[0027] Furthermore, the solution of this invention can also be applied to online verification and identification systems based on cloud service systems. Please refer to [link to relevant documentation]. Figure 2The system includes a cloud server, a measuring instrument with IoT network configuration, and an administrator terminal. The measuring instrument enters online verification and identification mode by periodically or periodically triggering itself, or in response to commands from the cloud server. The cloud server then obtains the first response data and the second response data of the measuring instrument to realize online verification and identification based on the technical solution described below. After obtaining the corresponding verification and identification results, the cloud server sends them to the administrator terminal.

[0028] Traditional metrological verification methods primarily focus on whether the indication error meets the requirements of the verification procedure, while paying insufficient attention to the dynamic response behavior of the measuring instrument during the verification process. In some special scenarios, the measuring instrument may meet the procedure requirements at the indication level through internal buffering, filtering, and identification of verification modes, but its response behavior during the verification process differs from that of a normal instrument. To address these issues, this invention starts from the response characteristics of the verification process. By constructing a standard verification procedure and a control verification procedure, process disturbances are introduced without changing the values ​​at the verification points. A systematic analysis of the process response characteristics under different process conditions is then performed, thereby enabling the identification of the verification behavior of the measuring instrument.

[0029] Please see Figure 1 This embodiment discloses a method for the verification and identification of measuring instruments based on the response characteristics of the verification process. The method includes the following steps:

[0030] S1, the measuring instrument under test performs the standard verification process under the preset verification point values. During the loading process at each verification point, the first response data is collected according to the unified sampling method, including the value stabilization time, the value change process, and the time interval of measurement data output.

[0031] In this embodiment, based on the verification procedure corresponding to the measuring instrument under test, a set of preset verification point values ​​are determined, and the verification point values ​​are loaded sequentially according to the standard order specified in the procedure, thus performing the standard verification process on the measuring instrument under test. It should be noted that the standard verification process does not introduce any additional process adjustments or path changes, but only reflects the normal verification process of the measuring instrument under the conditions of the procedure.

[0032] For example, if the measuring instrument under test is a measuring device with a certain measuring range, the verification procedure can pre-define multiple discrete verification point values ​​covering that measuring range, for example, gradually increasing from lower values ​​to higher values, and loading them sequentially in the increasing order. The specific values ​​and number of the above verification point values ​​are determined by the corresponding verification procedure, and are not limited in this embodiment, only required to remain fixed throughout the entire standard verification process.

[0033] During the loading process at each calibration point, the output of the measuring instrument under test is collected, and a unified collection method is used to ensure the comparability of data collected at different calibration points and under different process conditions. The unified sampling method includes at least a unified sampling frequency, sampling start conditions, and sampling duration rules, so that the sampling data corresponding to each calibration point are consistent in terms of time scale and data structure.

[0034] For example: Sampling is initiated at the start of each calibration point value loading, and the output data of the measuring instrument under test is continuously collected at a fixed sampling frequency until the indicated value reaches a stable state and continuously meets the preset stability conditions, at which point sampling ends. Through the above unified sampling method, the data obtained under different calibration point values ​​are kept consistent in terms of sampling time span and data point distribution, thereby facilitating subsequent comparative analysis under different process conditions.

[0035] In the above process, for each calibration point value, first response data is collected and recorded, including at least: the indication stabilization time, which characterizes the time it takes for the measuring instrument under test to reach a stable output state after the calibration point value is loaded; the indication change process, which characterizes the change in the indication from the start or completion of loading to stabilization; and the time interval of measurement data output, which characterizes the temporal rhythm characteristics of the output data of the measuring instrument under test during the calibration point loading period. The indication stabilization time can be determined by judging the starting time when the indication satisfies the stability criterion within a continuous sampling period; the indication change process can be directly constructed from the sampled time series data; and the time interval of measurement data output can be obtained from the time difference between two adjacent valid output data. It should be noted that the above example is only used to illustrate the method of obtaining the first response data and does not constitute a limitation on specific calculation methods or criteria.

[0036] It is understandable that the first response data is associated with the corresponding verification point values ​​and their execution position in the standard verification process, and recorded in a structured form.

[0037] S2, while keeping the values ​​of each verification point unchanged and within the allowable range of the verification procedure, adjust the loading sequence of the verification points, the distribution of waiting time between adjacent verification points, and the loading return method to construct a reference verification process.

[0038] Unlike traditional methods that involve adding verification points, changing verification values, or introducing additional testing methods, this invention only adjusts the organizational dimensions of the verification process, including the loading order of verification points, the distribution of waiting time between verification points, and the loading path form. This allows the measuring instrument to undergo different verification process states while maintaining consistent measurement conditions.

[0039] As an example, while keeping the values ​​at each verification point unchanged and within the allowable range of the verification procedure, the loading sequence of the verification points, the distribution of waiting time between adjacent verification points, and the loading return method are adjusted to construct a comparative verification process, including:

[0040] S21, while keeping the set of values ​​of each verification point unchanged, adjust the loading order of each verification point in the standard verification process so that each verification point is loaded in a different order than the standard verification process.

[0041] In this embodiment, after completing the standard verification process and obtaining the first response data, the set of verification point values ​​of the measuring instrument under test is kept unchanged, and the loading order of each verification point in the standard verification process is adjusted to form the loading order in the comparison verification process.

[0042] Specifically, the loading order information of each verification point in the standard verification process is obtained, and the loading order is represented as an ordered sequence. Then, without changing the number of verification points or the magnitude of each verification point, the ordered sequence is rearranged to generate a loading order sequence different from the standard verification process, which is used to compare the execution of the verification process.

[0043] During the sequence adjustment process, the loading order of each verification point in the comparative verification procedure must meet the executability requirements of the verification system. That is, the loading of any verification point can be completed under the current system state, and the loading process does not violate the constraints of the verification procedure on the loading method. The loading order in the comparative verification procedure may differ overall or partially from the loading order in the standard verification procedure, but such differences do not involve changes in the values ​​of the verification points themselves.

[0044] Preferably, a corresponding process execution position identifier is assigned to each verification point in the comparative verification process to characterize the loading sequence position of that verification point in the comparative verification process. The process execution position identifier and the verification point value together constitute the basic information for subsequent process response feature marking and alignment analysis.

[0045] S22, after the loading order adjustment is completed, the waiting time between adjacent verification points is redistributed so that different verification points correspond to different stable waiting times after loading is completed;

[0046] In this embodiment, after determining the loading order of the comparative verification process, the stabilization waiting time between adjacent verification points is reallocated. The stabilization waiting time refers to the waiting time maintained after completing the loading of a certain verification point value and reaching the specified loading state, before entering the loading of the next verification point.

[0047] As an example, the waiting time between adjacent checkpoints is redistributed so that different checkpoints have different stable waiting times after loading, including:

[0048] S221, Based on the stabilization time or change process of the indication value corresponding to each verification point in the standard verification process, the verification points are grouped;

[0049] For each verification point in the preset set of verification point values, read the corresponding value stabilization time record in the standard verification process, or read the corresponding value change process data in the standard verification process, and group the verification points accordingly.

[0050] In one implementation, the stability time of the indicated value is used as the grouping basis. Specifically, the stability times of the indicated values ​​corresponding to each calibration point are aggregated to form a stability time set, and the calibration points are divided into at least two groups based on the relative magnitude of the stability times. For example, calibration points with stability times within relatively small ranges can be divided into the first group, and calibration points with stability times within relatively large ranges can be divided into the second group; alternatively, the stability times can be divided into three or more groups based on multiple ranges to provide tiered space when setting differentiated waiting times later. The range division can be pre-configured by the calibration system or set by the calibration personnel before implementation according to the instrument type and procedural requirements.

[0051] In another implementation, the indication change process is used as the grouping basis. Specifically, the indication change process of each calibration point after loading is characterized. This characterization can use indicators directly obtainable from the sampled data, such as the fluctuation range, rate of change, or change segments of the process data. The calibration points are then divided into different groups based on the relative differences of these indicators. It should be noted that this grouping method does not require complex modeling of the indication change process; it only requires the ability to distinguish between calibration points with relatively smooth changes and those with more pronounced changes or more stages of change, in order to form grouping results that can be used for subsequent waiting time configuration.

[0052] After grouping is completed, record the grouping identifier for each verification point, and store the grouping identifier, verification point value and its execution position in the comparative verification process together, so that it can be directly called in the future when determining the waiting time and recording the process.

[0053] S222 sets different stable waiting times for different groups of inspection points, so that inspection points belonging to different groups have different waiting times after loading; wherein, the stable waiting time of subsequent inspection points is determined according to the group to which the previous inspection point belongs and the corresponding waiting time, so that the waiting time distribution between adjacent inspection points has sequential correlation, thereby forming a non-equal interval, non-periodic waiting time sequence.

[0054] A set of preset stable waiting time configuration rules is provided for different groups, so that the waiting time used by the verification points of different groups after loading is different. The waiting time values ​​meet the basic requirements of the verification procedure for stable waiting and are within the time setting range allowed by the verification system.

[0055] In one implementation, a basic waiting time parameter is configured for each group. For example, the first group is configured with a waiting time of T1, the second group with a waiting time of T2, and T1 and T2 are not the same. When the number of groups is greater than two, different basic waiting times T1, T2, ..., Tm can be configured for each group. Subsequently, according to the loading order of the verification process, waiting times are assigned to each verification point in sequence, so that verification points in the same group receive the same type of basic waiting time, thereby forming differentiated waiting configurations in the process.

[0056] Furthermore, to establish sequential correlation, an update rule related to the previous verification point is introduced when determining the stable waiting time for subsequent verification points. Specifically, in the comparative verification process, when the process reaches the (i+1)th verification point, its waiting time is not only related to the group to which the (i+1)th verification point belongs, but also to the group to which the i-th verification point belongs and the actual waiting time used by the i-th verification point. This correlation can be achieved through rules that inherit / modify the waiting time based on the previous waiting time. For example, in the process of determining the waiting time for subsequent verification points, a value related to the waiting time of the previous verification point is added to or replaced on the basic waiting time of its group. In this way, the waiting times between adjacent verification points are not set independently, but are correlated according to the process sequence.

[0057] During implementation, the verification system can simultaneously generate a waiting time sequence when generating the reference verification process, and establish a correspondence between each item in the sequence and the verification point value, execution location, and group identifier, forming a directly executable process configuration table. Through this method, the waiting time distribution of the reference verification process is obtained, so that the waiting times corresponding to adjacent verification points in the process present an overall non-equal interval, non-periodic sequence structure, and are recorded as part of the reference verification process.

[0058] S23, based on the adjustment of loading sequence and waiting time distribution, introduce loading return operation at at least one verification point, so that the same verification point value is applied multiple times under different loading paths, thereby forming a comparative verification process that is consistent in the verification value conditions but different from the standard verification process in terms of loading sequence, time organization method and loading path.

[0059] After adjusting the loading order and redistributing the waiting time, a loading return operation is set at at least one verification point in the verification process. The loading return operation means that after loading a certain verification point value and ending its corresponding stable waiting, the system does not directly proceed to loading the next verification point value, but first loads to another verification point value, and then returns to load the same verification point value.

[0060] In practice, the verification point values ​​involved in the loading return operation are all taken from a preset set of verification point values, and the loading process meets the basic requirements of the verification procedure for loading method and stability. The loading return operation can be set to a single return or multiple returns, and the specific number of returns is configured by the verification system when generating the comparison verification process.

[0061] In one implementation, a verification point is selected as the return verification point in the comparison verification process. After the initial loading at this verification point is completed and the stabilization wait ends, the value is loaded to another verification point in a preset order, and then loaded back to the return verification point value. In this way, the same verification point value corresponds to at least two loading actions in the comparison verification process, and the two loadings differ in the preceding loading state and path.

[0062] In another implementation, loading return operations can be introduced at multiple verification points, so that the values ​​at multiple verification points correspond to different loading path conditions in the verification process. These multiple loading return operations can be set independently of each other, or they can be configured uniformly according to the order of the verification process.

[0063] Preferably, the location of the loading return operation, the return path, and the corresponding process execution location are recorded, so that the process response characteristics collected under different loading path conditions for the same verification point value can be distinguished and identified in subsequent steps. The recorded information, together with the loading sequence identifier and the waiting time distribution information, constitutes a set of process parameters for the comparative verification process, which is used to establish the correspondence between process response characteristics and loading paths and to perform alignment analysis.

[0064] S3, Verify the measuring instrument to be tested according to the aforementioned comparative verification process, and collect second response data that is consistent with the data type of the first response data;

[0065] In this embodiment, after the comparative verification process is constructed, the verification system performs verification operations on the measuring instrument to be tested according to the comparative verification process. The comparative verification process includes an adjusted loading order of verification points, a redistributed waiting time distribution, and loading return operations introduced at some verification points, and the values ​​of each verification point are taken from a preset set of verification point values.

[0066] During execution, each verification point in the verification process is loaded sequentially according to the configured order. After each verification point is loaded, a waiting period is set according to the preset stability waiting time in the process before proceeding to the loading of the next verification point or a return loading. The execution process does not change the value of the verification points; it only follows the process organization method defined in the verification process. To ensure the executability and reproducibility of the verification process, during implementation, the verification system can represent the verification process as a process configuration table containing information such as the value of the verification points, the execution order, the waiting time, and whether a return loading occurs, and execute each item according to this configuration table.

[0067] In this embodiment, while performing the comparative verification process, data is collected from the output of the measuring instrument under test to obtain second response data. The second response data is consistent with the first response data collected in step S1 in terms of data type, sampling method, and data structure. Specifically, the second response data includes at least: the stabilization time of the indication value corresponding to each verification point; the indication change process data during the loading process of each verification point; and the time interval data of the measurement data output during the loading period of each verification point.

[0068] Understandably, when collecting the second response data, the same sampling frequency, sampling start conditions, and sampling duration rules as in step S1 are used to ensure that the second response data is comparable to the first response data in terms of time scale and data structure. The second response data is also associated with the corresponding verification point value, its execution position in the comparative verification process, and the corresponding loading path information, and recorded in a structured form.

[0069] S4. For the same verification point value, establish the correspondence between process response characteristics and verification process organization method and loading path based on the first response data and the second response data respectively, and perform alignment analysis on the correspondence under the same verification point position to determine whether the response relationship of the process response characteristics changes under the condition of verification process change, and whether the correspondence remains consistent under different loading path conditions.

[0070] In this embodiment, after data collection for both the standard verification process and the control verification process is completed, the obtained process response data is uniformly organized and processed. This invention does not directly compare the first and second response data numerically. Instead, under the same verification point value conditions, it first establishes a correspondence between the process response characteristics and the verification process organization method and loading path, and then performs alignment analysis on the correspondence at the same verification point location.

[0071] As an example, for the same verification point value, a correspondence is established between process response characteristics and verification process organization and loading path based on the first response data and the second response data, respectively, including:

[0072] S41, under the same verification point value conditions, the first response data and the second response data are marked according to the corresponding verification process organization method and loading path, so that each group of process response characteristics is associated with its corresponding loading sequence position, waiting time distribution position and loading path position.

[0073] After collecting the first and second response data, the data are marked for the same verification point values. This marking process is used to establish the correlation between the process response characteristics and the corresponding verification process organization and loading path at the time of their generation.

[0074] Specifically, for the first response data, the loading order position of the process response feature corresponding to each verification point value in the process is recorded according to the execution order of the verification points in the standard verification process; for the second response data, the loading order position of the process response feature corresponding to each verification point value in the reference process is recorded according to the execution order of the verification points in the reference verification process.

[0075] During the marking process, the stable waiting time distribution of each verification point in the process is recorded simultaneously, that is, the positional relationship of the waiting time corresponding to the completion of the loading of the verification point in the waiting time sequence is recorded. In addition, for verification points that have undergone loading return operation, their corresponding loading path positions are also recorded to distinguish the process response characteristics generated by the same verification point value under different loading path conditions.

[0076] Through the above labeling process, each group of process response characteristics is clearly associated with its corresponding loading sequence position, waiting time distribution position, and loading path position.

[0077] S42, for each verification point value, the stability time of the indicated value, the process of the indicated value change, and the time interval of the measurement data output are serialized according to the execution order of the verification process to form a process response characteristic sequence that corresponds one-to-one with the organization method of the verification process.

[0078] After the process response characteristics are marked, for each verification point value, the corresponding process response characteristics are serialized according to the execution order of the verification process.

[0079] Specifically, the stability time data of the indication values ​​belonging to the same verification point are arranged in the order of execution in the verification process to form a stability time series; the corresponding indication change process data are arranged in the same order to form an indication change process series; and the measurement data output time interval data are arranged in the same order to form an output time interval series.

[0080] Through the above serialization process, the various process response characteristics are kept consistent in terms of time sequence and process sequence, and a one-to-one correspondence is formed with the corresponding verification process organization method.

[0081] S43, the process response feature sequence is combined with the corresponding verification process organization method parameters and loading path parameters to form a set of correspondences describing the changes in process response features with the verification process organization method and loading path.

[0082] After constructing the process response feature sequence, the process response feature sequence is combined with its corresponding verification process organization parameters and loading path parameters to form a set of corresponding relationships.

[0083] Specifically, for each verification point value, the process response characteristic sequence formed under the standard verification process and the control verification process is obtained, and the process organization mode parameters corresponding to the process response characteristic sequence are read simultaneously. The process organization mode parameters include at least: the loading sequence position of the verification point in the process, the stable waiting time distribution position corresponding to that position, and the path identifier of whether a loading return operation is performed.

[0084] During the combination process, each process response feature sequence corresponding to the same verification point value is associated and stored with the process organization parameters and loading path parameters corresponding to its generation, so that each process response feature sequence corresponds to a clear set of process organization parameters and path parameters. For verification point values ​​that appear multiple times in the comparison verification process due to loading return operation, the process response feature sequences formed under different loading path conditions are included as independent relational items in the combination.

[0085] Using the above method, a set of correspondences containing multiple relational items is formed for each verification point value. This set of correspondences describes the distribution of process response characteristics corresponding to the same verification point value under different verification process organization methods and different loading path conditions, and maintains a consistent correspondence with the process execution order and path conditions.

[0086] As an example, alignment analysis is performed on the correspondence at the same verification point location to determine whether the response relationship of the process response characteristics changes under the condition of changing verification process, and whether the correspondence remains consistent under different loading paths, including:

[0087] S44, using the execution position of the verification point in the verification process as the alignment benchmark, performs position alignment on the set of process response feature correspondences formed under different verification process organization methods and different loading path conditions;

[0088] After forming the set of correspondences, the set of correspondences is aligned. The alignment is based on the execution position of the verification point in the verification process.

[0089] In practice, the execution position identifiers corresponding to each verification point in the standard verification process and the reference verification process are read respectively, and the relational items in the corresponding relation set are rearranged using the execution position identifiers as indexes. Through this rearrangement, relational items at the same execution position have consistent position numbers in the corresponding relation set.

[0090] For cases where there is a loading return operation in the verification process, since the same verification point value may correspond to multiple execution positions in the process, the relationship items formed during the loading return process are assigned independent execution position identifiers, and they are arranged in parallel with the relationship items of the corresponding positions in the standard verification process, or included as independent positions in the alignment sequence.

[0091] By performing the above-mentioned position alignment process, the set of corresponding relationships formed in the standard verification process and the reference verification process are kept consistent in terms of process structure, so that subsequent comparisons of relationship items for different process organization methods and different loading path conditions can be carried out under a unified position benchmark.

[0092] S45, for different verification process organization methods and different loading path conditions, the relation items in the corresponding relation set are compared item by item to obtain the corresponding relation difference items;

[0093] After completing the position alignment, each relation item in the corresponding relation set is compared item by item. The item-by-item comparison is performed on both the process organization method dimension and the loading path dimension.

[0094] Specifically, in terms of the organization of the verification process, relational items with the same verification point value and the same execution position are selected, and the relational items formed under the standard verification process conditions are compared with those formed under the control verification process conditions. The comparison is aimed at the process response feature sequence contained in the relational item and its corresponding structure with the process parameters, rather than a single response data value.

[0095] In terms of loading path dimension, for multiple relational items formed by the same verification point value under different loading path conditions in the comparison verification process, they are distinguished according to the loading path identifier, and the relational items corresponding to different loading path conditions are compared. For verification points that have not undergone loading return operation, only a single path relational item is formed; for verification points that have undergone loading return operation, multiple path relational items are formed, and each is compared separately.

[0096] During the item-by-item comparison process, the comparison results are recorded in the form of relational difference items. These relational difference items are used to describe the differences between each relational item in the corresponding relation set under different verification process organization methods or different loading path conditions, and are associated with the corresponding verification point value, execution location, and loading path identifier.

[0097] S46, the relationship differences are categorized according to the dimensions of the verification process organization method and the loading path, respectively, to form an alignment analysis result describing the relationship changes of the process response characteristics under different verification process conditions and different loading path conditions.

[0098] In practice, based on the process organization method identifier associated with the relationship difference item, the relationship difference items are categorized according to the verification process organization method dimension. This process organization method dimension is used at least to distinguish between standard verification processes and control verification processes, or to distinguish relationship difference items formed under different control verification process organization methods. Through this categorization, relationship difference items formed under different verification process organization methods are aggregated into their corresponding process organization method categories.

[0099] After classifying the process organization methods, the relationship differences are further classified according to the loading path dimension based on the loading path identifier associated with each relationship difference. The loading path dimension distinguishes relationship differences formed under different loading path conditions for the same calibration point value. For calibration points without loading return operations, their corresponding relationship differences are classified into a single path category; for calibration points with loading return operations, the relationship differences formed under different loading path conditions are classified into their respective path categories.

[0100] During the classification process, the relationship difference item maintains its association with its corresponding verification point value identifier, process execution location identifier, and loading path identifier, so that subsequent processing can index the classification results based on the verification point value and process location.

[0101] Through the two-level classification process described above, based on the dimensions of the verification process organization method and the loading path, alignment analysis results are generated. These results are recorded in a structured format to describe the distribution of relationship differences in the corresponding relationship set under different verification process conditions and different loading path conditions. They serve as the basis for unified output or further processing in subsequent steps.

[0102] S5 determines and outputs the verification and identification results of the measuring instrument under test based on the alignment analysis results.

[0103] In this embodiment, the alignment analysis results generated in the preceding steps are read and recorded in a structured form, including at least: a set of relationship difference items under different verification process organization methods, and a set of relationship difference items under different loading paths. In the structured results, each relationship difference item still maintains its association with the corresponding verification point value, process execution position, and loading path identifier.

[0104] In this embodiment, the alignment analysis results can be summarized and organized according to the verification point values. Specifically, for the same verification point value, the relationship differences corresponding to it under different verification process organization methods and different loading paths are centrally stored to form an analysis result unit indexed by the verification point value. Each analysis result unit can correspond to one or more verification point values.

[0105] After summarizing the alignment analysis results, the results are output according to preset output rules. These output rules specify the output format and content structure of the alignment analysis results, without limiting specific judgment algorithms or threshold conditions. The output content may include, but is not limited to: a summary of the alignment analysis results corresponding to each verification point value, the distribution of relationship differences under different verification process conditions, and the classification results of relationship differences under different loading paths.

[0106] In one embodiment, the verification and identification results are output in the form of data files or record tables for subsequent manual review or system archiving; in another embodiment, the verification and identification results are output in the form of an interface display, enabling verification personnel to view the analysis result structure corresponding to the values ​​of each verification point.

[0107] This step transforms the aforementioned alignment analysis results into a standardized output of verification and identification results, providing a basis for recording, reviewing, or further processing of the verification process.

[0108] Please see Figure 3 This invention also provides a metrological instrument verification and identification device 100 based on the response characteristics of the verification process, comprising:

[0109] The data acquisition module 10 is used to perform standard verification procedures on the measuring instrument under test at preset verification point values. During the loading process at each verification point, it collects the first response data according to a unified sampling method, including the value stabilization time, the value change process, and the time interval of measurement data output.

[0110] The process construction module 20 is used to adjust the loading sequence of the verification points, the waiting time distribution between adjacent verification points, and the loading return method, while keeping the values ​​of each verification point unchanged and not exceeding the allowable range of the verification procedure, so as to construct a comparison verification process.

[0111] The comparison acquisition module 30 is used to verify the measuring instrument under test according to the comparison verification process and acquire second response data that is consistent with the first response data type.

[0112] The relationship analysis module 40 is used to establish a correspondence between process response features and verification process organization method and loading path based on the first response data and the second response data respectively for the same verification point value, and to perform alignment analysis on the correspondence under the same verification point position to determine whether the response relationship of the process response features changes under the condition of verification process change, and whether the correspondence remains consistent under different loading path conditions.

[0113] The identification output module 50 is used to determine and output the verification and identification results of the measuring instrument under test based on the results of the alignment analysis.

[0114] As an example, the process construction module 20 is specifically used to implement:

[0115] While keeping the set of values ​​for each verification point unchanged, the loading order of each verification point in the standard verification process is adjusted so that each verification point is loaded in a different order than in the standard verification process.

[0116] After the loading order adjustment is completed, the waiting time between adjacent verification points is redistributed so that different verification points correspond to different stable waiting times after loading is completed.

[0117] Based on the adjustment of the loading sequence and waiting time distribution, a loading return operation is introduced at at least one verification point, so that the same verification point value is applied multiple times under different loading paths, thereby forming a comparative verification process that is consistent in the verification value conditions but different from the standard verification process in terms of loading sequence, time organization method and loading path.

[0118] As an example, the process construction module 20 is specifically used to implement:

[0119] Based on the stabilization time or change process of the indicated value corresponding to each verification point in the standard verification process, the verification points are grouped.

[0120] Different stable waiting times are set for different groups of inspection points, so that inspection points belonging to different groups have different waiting times after loading. The stable waiting time of subsequent inspection points is determined according to the group to which the previous inspection point belongs and the corresponding waiting time, so that the waiting time distribution between adjacent inspection points has a sequential correlation, thus forming a non-equal interval and non-periodic waiting time sequence.

[0121] As an example, the relationship analysis module 40 is specifically used to implement:

[0122] Under the same verification point value conditions, the first response data and the second response data are marked according to the corresponding verification process organization method and loading path, so that each group of process response characteristics is associated with its corresponding loading sequence position, waiting time distribution position and loading path position.

[0123] For each calibration point value, the stabilization time of the indicated value, the process of the indicated value change, and the time interval of the measurement data output are serialized according to the execution order of the calibration process, forming a process response characteristic sequence that corresponds one-to-one with the organization method of the calibration process.

[0124] The process response feature sequence is combined with the corresponding verification process organization parameters and loading path parameters to form a set of correspondences describing the changes in process response features with the verification process organization and loading path.

[0125] As an example, the relationship analysis module 40 is specifically used to implement:

[0126] Using the execution position of the verification point in the verification process as the alignment benchmark, the set of process response feature correspondences formed under different verification process organization methods and different loading path conditions is aligned.

[0127] For different verification process organization methods and different loading path conditions, the relation items in the corresponding relation set are compared item by item to obtain the corresponding relation difference items;

[0128] The relationship differences are categorized according to the dimensions of the verification process organization method and the loading path, respectively, to form an alignment analysis result describing the relationship changes of process response characteristics under different verification process conditions and different loading path conditions.

[0129] This invention also provides a readable medium storing instructions that, when executed on an electronic device, cause the electronic device to perform any of the methods described above.

[0130] This invention also provides a computer program product, which includes instructions that, when executed on an electronic device, cause the electronic device to perform the method described in any of the preceding embodiments.

[0131] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A method of metrological instrument verification discrimination based on response characteristics of a verification process, characterized by, The method includes the following steps: S1, the measuring instrument under test performs the standard verification process under the preset verification point values. During the loading process at each verification point, the first response data is collected according to the unified sampling method, including the value stabilization time, the value change process, and the time interval of measurement data output. S2, while keeping the values ​​of each verification point unchanged and within the allowable range of the verification procedure, adjust the loading sequence of the verification points, the distribution of waiting time between adjacent verification points, and the loading return method to construct a reference verification process. S3, Verify the measuring instrument to be tested according to the aforementioned comparative verification process, and collect second response data that is consistent with the data type of the first response data; S4. For the same verification point value, establish the correspondence between process response characteristics and verification process organization method and loading path based on the first response data and the second response data respectively, and perform alignment analysis on the correspondence under the same verification point position to determine whether the response relationship of the process response characteristics changes under the condition of verification process change, and whether the correspondence remains consistent under different loading path conditions. S5, Based on the alignment analysis results, determine and output the verification and identification results of the measuring instrument under test; While keeping the values ​​at each verification point constant and within the allowable range of the verification procedure, the loading sequence of the verification points, the distribution of waiting time between adjacent verification points, and the loading return method are adjusted to construct a comparative verification process, including: S21, while keeping the set of values ​​of each verification point unchanged, adjust the loading order of each verification point in the standard verification process so that each verification point is loaded in a different order than the standard verification process. S22, after the loading order adjustment is completed, the waiting time between adjacent verification points is redistributed so that different verification points correspond to different stable waiting times after loading is completed; S23, based on the adjustment of loading sequence and waiting time distribution, a loading return operation is introduced at at least one verification point, so that the same verification point value is applied multiple times under different loading paths, thereby forming a comparative verification process that is consistent in the verification value conditions but different from the standard verification process in terms of loading sequence, time organization method and loading path. For the same verification point value, a correspondence is established between the process response characteristics and the verification process organization method and loading path based on the first response data and the second response data, respectively, including: S41, under the same verification point value conditions, the first response data and the second response data are marked according to the corresponding verification process organization method and loading path, so that each group of process response characteristics is associated with its corresponding loading sequence position, waiting time distribution position and loading path position. S42, for each verification point value, the stability time of the indicated value, the process of the indicated value change, and the time interval of the measurement data output are serialized according to the execution order of the verification process to form a process response characteristic sequence that corresponds one-to-one with the organization method of the verification process. S43, the process response feature sequence is combined with the corresponding verification process organization method parameters and loading path parameters to form a set of correspondences describing the changes in process response features with the verification process organization method and loading path.

2. The method of claim 1, wherein: The waiting time between adjacent verification points is redistributed so that different verification points have different stable waiting times after loading, including: S221, Based on the stabilization time or change process of the indication value corresponding to each verification point in the standard verification process, the verification points are grouped; S222 sets different stable waiting times for different groups of inspection points, so that inspection points belonging to different groups have different waiting times after loading; wherein, the stable waiting time of subsequent inspection points is determined according to the group to which the previous inspection point belongs and the corresponding waiting time, so that the waiting time distribution between adjacent inspection points has sequential correlation, thereby forming a non-equal interval, non-periodic waiting time sequence.

3. The method for verification and identification of measuring instruments based on the response characteristics of the verification process according to claim 1, characterized in that: Alignment analysis is performed on the correspondence at the same verification point location to determine whether the response relationship of the process response characteristics changes under the condition of change in the verification process, and whether the correspondence remains consistent under different loading paths, including: S44, using the execution position of the verification point in the verification process as the alignment benchmark, performs position alignment on the set of process response feature correspondences formed under different verification process organization methods and different loading path conditions; S45, for different verification process organization methods and different loading path conditions, the relation items in the corresponding relation set are compared item by item to obtain the corresponding relation difference items; S46, the relationship differences are categorized according to the dimensions of the verification process organization method and the loading path, respectively, to form an alignment analysis result describing the relationship changes of the process response characteristics under different verification process conditions and different loading path conditions.

4. A metrological instrument verification discrimination apparatus based on a response characteristic of a verification process, characterised in that, include: The data acquisition module is used to perform standard verification procedures on the measuring instrument under test at preset verification point values. During the loading process at each verification point, it collects the first response data according to a unified sampling method, including the stabilization time of the indicated value, the process of the indicated value change, and the time interval of the measurement data output. The process construction module is used to adjust the loading order of the verification points, the waiting time distribution between adjacent verification points, and the loading return method, while keeping the values ​​of each verification point unchanged and within the allowable range of the verification procedure, so as to construct a reference verification process. The comparison acquisition module is used to verify the measuring instrument under test according to the comparison verification process and acquire second response data that is consistent with the first response data type. The relationship analysis module is used to establish a correspondence between process response characteristics and verification process organization method and loading path based on the first response data and the second response data for the same verification point value, respectively, and to perform alignment analysis on the correspondence under the same verification point location to determine whether the response relationship of the process response characteristics changes under the condition of verification process change, and whether the correspondence remains consistent under different loading path conditions. The identification output module is used to determine and output the verification and identification results of the measuring instrument under test based on the results of the alignment analysis. The process construction module is specifically used to implement: While keeping the set of values ​​for each verification point unchanged, the loading order of each verification point in the standard verification process is adjusted so that each verification point is loaded in a different order than in the standard verification process. After the loading order adjustment is completed, the waiting time between adjacent verification points is redistributed so that different verification points correspond to different stable waiting times after loading is completed. Based on the adjustment of loading sequence and waiting time distribution, a loading return operation is introduced at at least one verification point, so that the same verification point value is applied multiple times under different loading paths, thereby forming a comparative verification process that is consistent in the verification value conditions but different from the standard verification process in terms of loading sequence, time organization method and loading path. The relationship analysis module is specifically used to implement: Under the same verification point value conditions, the first response data and the second response data are marked according to the corresponding verification process organization method and loading path, so that each group of process response characteristics is associated with its corresponding loading sequence position, waiting time distribution position and loading path position. For each calibration point value, the stabilization time of the indicated value, the process of the indicated value change, and the time interval of the measurement data output are serialized according to the execution order of the calibration process, forming a process response characteristic sequence that corresponds one-to-one with the organization method of the calibration process. The process response feature sequence is combined with the corresponding verification process organization parameters and loading path parameters to form a set of correspondences describing the changes in process response features with the verification process organization and loading path.

5. A metrological instrument test and validation apparatus based on test procedure response characteristics as claimed in claim 4, characterised in that: The process construction module is specifically used to implement: Based on the stabilization time or change process of the indicated value corresponding to each verification point in the standard verification process, the verification points are grouped. Different stable waiting times are set for different groups of inspection points, so that inspection points belonging to different groups have different waiting times after loading. The stable waiting time of subsequent inspection points is determined according to the group to which the previous inspection point belongs and the corresponding waiting time, so that the waiting time distribution between adjacent inspection points has a sequential correlation, thus forming a non-equal interval and non-periodic waiting time sequence.

6. A readable medium storing instructions, characterized in that, When the instructions are executed on an electronic device, the electronic device causes the electronic device to perform the method as described in any one of claims 1-3.

7. A computer program product, said computer program product comprising instructions, characterized in that, When the instructions are executed on an electronic device, the electronic device causes the electronic device to perform the method as described in any one of claims 1-3.

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