Measuring instrument verification and calibration electronic certificate management platform and method

Abstract

The present invention provides a method for managing electronic certificates for verification and calibration of measuring instruments, the method comprising the following steps: importing the first measuring instrument information on the management platform, uploading and archiving a scanned copy of the external measuring instrument verification certificate; importing the second measuring instrument information on the management platform, and issuing an internal electronic certificate for verification or calibration of the measuring instrument; each level can query the electronic certificate in real time, and can download and print the electronic certificate; the management platform dynamically records the status of the measuring instrument to achieve full life cycle management; the management platform establishes an electronic information archive, performs data analysis and validity period early warning and alarm, and prevents the risk of certificate expiration. The present invention also provides a management platform for electronic certificates for verification and calibration of measuring instruments. Beneficial effects of the present invention: the development of paperless certificate issuance technology can effectively control the risk of expiration of verification and calibration certificates of measuring instruments, and achieve dynamic management and control of the full life cycle of measuring instruments.

Description

Technical Field

[0001] The present invention relates to the technical field of metrological verification and calibration, and in particular to a measuring instrument verification and calibration electronic certificate management platform and method. Background Art

[0002] As the terminal platform of finished oil sales companies, gas stations need to use measuring instruments such as gas pumps, gas pumps, hydrogen pumps, diesel exhaust treatment fluid dispensers, other fuel dispensers, thermometers, density meters, dipsticks, standard metal barrels and horizontal tanks to ensure fairness, impartiality and openness in internal and external measurement transfers. According to the different scopes of measurement transfers and relevant measurement laws and regulations, external or internal verification or calibration methods can be adopted to achieve measurement value transfer or measurement value traceability, and obtain external or internal measurement instrument verification or calibration certificates. Traditional certificate issuance and management methods are all based on paper certificates, and there are problems such as "large number of certificates, high certificate issuance costs, poor monitoring timeliness, difficult life cycle tracking, and lack of support for data analysis". It is easy to cause measurement legality and compliance risks such as untimely inspection of measuring instruments and expired certificates, which is not conducive to the effective management of measuring instruments.

[0003] Paper certificates have the following disadvantages:

[0004] (1) Large number of measuring instruments

[0005] According to the quality management requirements of gas stations, it is necessary to use gas pumps, gas pumps, hydrogen pumps, diesel exhaust treatment fluid dispensers, other fuel dispensers, thermometers, density meters, oil dipsticks, standard metal measuring instruments and horizontal tanks and other measuring instruments. According to the different scopes of measurement transfer and relevant measurement laws and regulations, internal and external verification or calibration methods can be adopted to realize the transfer of measurement values ​​or the traceability of measurement values, and obtain internal and external verification and calibration certificates for measuring instruments. Each station generally has 4 to 20 external verification certificates for gas pumps, 1 to 2 internal verification certificates for thermometers, and 1 to 2 internal calibration certificates for density meters, 1 to 2 internal calibration certificates for oil dipsticks, 1 internal or external calibration certificate for a standard metal measuring instrument, 4 to 6 internal calibration certificates for horizontal tank volumes. A large provincial-level finished oil sales enterprise routinely uses and manages nearly 30,000 measuring instruments. The base number is very large and the management is difficult, especially as the cycle of the above-mentioned internal calibration or verification of measuring instruments ranges from 1 to 4 years. About 5,000 measuring instrument certificates are issued annually on average. The issuance and use of a large number of paper certificates results in a large amount of resource consumption, which is inconsistent with the green and low-carbon development concept advocated by the current country.

[0006] (2) High cost of issuing certificates

[0007] According to relevant quality management regulations, non-mandatory measuring instruments used within gas stations must first be inspected. If they meet the standards after inspection or calibration, a verification or calibration certificate for the corresponding measuring instrument will be produced and sent to the inspection unit through the issuance and collection process. The traditional method is to issue paper certificates. The production of certificates consumes a lot of manpower, material and financial resources, and must be mailed or collected, which is very inconvenient. At the same time, measuring instrument certificates require periodic review and long-term storage. In reality, certificates are often lost due to improper storage, management personnel adjustments or changes in location. Paper certificates can only be verified on-site, which is not conducive to real-time inspection and filing.

[0008] (3) Poor timeliness of license monitoring

[0009] The verification certificate of the external mandatory verification measuring instruments of gas stations (such as gas pumps, gas pumps, diesel exhaust treatment fluid dispensers, and other fuel dispensers) is generally valid for half a year, and the verification cycle is short. In addition, the verification or calibration certificate of the internal verification or calibration measuring instruments of gas stations (such as thermometers, density meters, oil dipsticks, standard metal measuring instruments and horizontal tanks) is generally valid for 1 to 4 years. Management personnel need to always pay attention to the status of measuring instruments and the validity of certificates. Because the current base of measuring instruments is very large and is more subject to the time limit of management personnel's information control, there is a problem of not discovering problems in time when the certificate is about to expire, and the management time is delayed, which makes it easy for the certificate to expire, resulting in the risk of illegal and irregular use of measuring instruments. Finding a dynamic real-time monitoring method has become the key to solving the problem.

[0010] (4) Life cycle is difficult to track

[0011] In accordance with relevant data quality management requirements, the measuring instruments used in gas stations should be tracked and controlled throughout their life cycle. Traditional management methods can only establish management ledgers at each level, combined with regular or irregular inquiries at each level and on-site inspections of the procurement, warehousing, inspection, use, deactivation, and scrapping of measuring instruments, and verify the physical and paper registration information to detect any abnormalities. It is difficult to quickly retrieve, query, and track information throughout the entire life cycle.

[0012] (5) Lack of support for data analysis

[0013] The meters used in gas stations contain a large amount of basic information, calibration information and usage information. Because they involve four levels of management: station, county, city and province, the traditional paper certificate management method makes it difficult to obtain relevant information quickly and in real time. There is no effective information support means to achieve rapid collection, aggregation, sorting, statistics and analysis, which is not conducive to efficient and precise management of measuring instruments, and cannot achieve the goal of digital management.

[0014] It is difficult for paper certificates of measuring instruments to adapt to the requirements of electronic and information development of measurement management under the new situation. After searching for domestic and foreign certificate information technology application models, although some industries have explored the application of electronic means for measuring instrument calibration certificates, there is no complete electronic certificate issuance and management platform for gas station measuring instruments. It is necessary to establish a new electronic certificate management method for gas station measuring instruments, develop a corresponding electronic certificate issuance and management platform, effectively control the risk of certificate expiration, and realize dynamic management of the entire life cycle of measuring instruments. It has high exploration and innovative application value and realizes the goal of making a "big deal" on a "small certificate".

[0015] It can be seen that the traditional management of measuring instruments has the following problems:

[0016] Question 1: Finished oil sales companies use a large number of measuring instruments at their gas stations. The cost of issuing paper certificates is high, they are inconvenient to obtain, and they consume a lot of resources, which is contrary to the current green and low-carbon development model.

[0017] Question 2: Traditional gas station metering equipment life cycle management uses a cumbersome method to conduct statistical reporting at each level, which lacks timeliness and effectiveness and is not conducive to dynamic adjustment and monitoring.

[0018] Question 3: Due to the different calibration cycles of gas station measuring instruments and the lack of effective information and digital supervision methods, it is difficult to prevent the risk of certificate expiration and cannot conduct rapid data statistical analysis. Summary of the Invention

[0019] The purpose of the present invention is to provide a measuring instrument verification and calibration electronic certificate management platform and method, which can solve the technical problems involved in the background technology.

[0020] To achieve the above object, the technical solution of the present invention is:

[0021] A method for managing metrological verification and calibration electronic certificates, the method comprising the following steps:

[0022] Step S1: Import the first measuring instrument information into the management platform and upload a scanned copy of the external verification certificate of the archived measuring instrument;

[0023] Step S2: Import the second measuring instrument information into the management platform and issue an electronic certificate for internal verification or calibration of the measuring instrument;

[0024] Step S3: Each level can query the electronic certificate in real time on the management platform, and can download and print the electronic certificate;

[0025] Step S4: The management platform dynamically records the status of the measuring instrument, performs data analysis, and performs validity period warnings and alarms to achieve full life cycle management;

[0026] Step S5: The management platform establishes an electronic information file, which has data analysis and validity period warning and alarm functions to prevent the risk of certificate expiration.

[0027] As a preferred improvement of the present invention, in step S1, the first measuring instrument information includes basic information of the mandatory verification measuring instrument and verification information of the mandatory verification measuring instrument by the legal metrology verification agency.

[0028] As a preferred improvement of the present invention, the compulsory inspection measuring instruments include fuel dispensers, gas dispensers, hydrogen dispensers, diesel vehicle exhaust treatment fluid dispensers, and other fuel dispensers.

[0029] As a preferred improvement of the present invention, step S2 specifically includes the following steps:

[0030] Step S21: After the metrology verification personnel verify or calibrate the non-mandatory verification measuring instruments, they enter the second measuring instrument information individually or in batches into the management platform and upload the original metrology verification records;

[0031] Step S22: Verify, check, and approve the level 3 corresponding authority verification and management platform review of the imported second measuring instrument information and the uploaded metrological verification original records;

[0032] Step S23: The system automatically extracts the required information, generates an electronic certificate of verification or calibration of the measuring instrument with one click, and includes the signature of the auditor and the company's special verification seal.

[0033] As a preferred improvement of the present invention, in step S21, the second measuring instrument information includes basic information of non-compulsory calibration measuring instruments and calibration information of non-compulsory calibration measuring instruments by metrology calibration personnel.

[0034] As a preferred improvement of the present invention, in step S3, the hierarchy includes four levels: province, prefecture, county and station. A unique identification QR code is provided on each electronic certificate, and the mobile APP application can retrieve and review the certificate by scanning the QR code.

[0035] As a preferred improvement of the present invention, in step S4, the measuring instrument status includes the receipt information, in-use information, out-of-use information, scrapping information and cross-calibration cycle information of each measuring instrument.

[0036] As a preferred improvement of the present invention, step S5 specifically includes the following steps:

[0037] Step S51: The management platform automatically extracts the basic information of the electronic certificate, establishes an online electronic information archive of the measuring instrument, forms a multi-dimensional statistical table, provides real-time data statistical analysis, and displays information of different categories of measuring instruments at all levels and corresponding electronic verification information;

[0038] Step S52: Monitor the validity of the electronic certificate based on the established online electronic information file of the measuring instrument. If the electronic certificate is about to expire in 3 months, execute step S53; if the electronic certificate has expired, execute step S54;

[0039] Step S53: Issue an early warning prompt to remind all levels to complete the inspection work in advance to avoid overdue inspection;

[0040] Step S54: Include it in the overdue alarm statistics as a basis for punishment for inadequate management.

[0041] The present invention also provides a measuring instrument verification and calibration electronic certificate management platform, which includes:

[0042] Import and upload module, used to import measuring instrument information and upload scanned copies of archived measuring instrument verification certificates;

[0043] Electronic certificate issuance module, used to issue internal verification or calibration electronic certificates;

[0044] Electronic certificate query module, used for real-time query of electronic certificates at all levels;

[0045] Electronic certificate download and print module, used to download and print electronic certificates;

[0046] Lifecycle management and control module, used to dynamically record the status of measuring instruments and conduct full lifecycle management and control;

[0047] An electronic information file establishment module, used to establish an online electronic information file of the measuring instrument based on the extracted basic information of the electronic certificate; and

[0048] The electronic certificate monitoring module is used to monitor the validity of electronic certificates based on the established online electronic information archive of measuring instruments.

[0049] As a preferred improvement of the present invention, the measuring instrument information includes basic information of compulsory inspection measuring instruments, verification information of compulsory inspection measuring instruments by legal measurement verification agencies, basic information of non-compulsory inspection measuring instruments and verification information of non-compulsory inspection measuring instruments by measurement verification personnel.

[0050] The beneficial effects of the method for managing electronic certificates for verification and calibration of measuring instruments provided by the present invention are:

[0051] 1. The management platform uploads the verification certificates of externally verified measuring instruments, comprehensively controlling the authenticity, timeliness, and legality of external verification, and supporting effective management at all levels;

[0052] 2. The management platform realizes the whole process of production, approval and issuance of electronic certificates for internal verification or calibration of measuring instruments, eliminating the original cumbersome paper certificates, reducing the issuance costs of paper certificates, simplifying the issuance process of paper certificates, and improving work efficiency. In addition, electronic certificates are easy to query, download and print at any time, and have anti-counterfeiting functions such as QR code verification and watermark comparison, creatively realizing the informatization of the issuance of verification certificates for measuring instruments;

[0053] 3. The management platform includes the basic information of all measuring instruments used in gas stations. By extracting relevant information, it generates a complete management ledger. It has the functions of early warning and alarm for the expiration of measuring instruments, preventing the risk of certificate expiration and the resulting illegal and irregular activities.

[0054] 4. The management platform can register and dynamically track the usage status of gas station metering instruments, and fully record the entire life cycle from activation to scrapping, facilitating traceability verification and query;

[0055] 5. Based on the basic information, calibration information, usage information, etc. of gas station metering instruments, the management platform can conduct multi-dimensional and multi-category big data statistics and analysis, providing effective support for enterprise managers to achieve digital management. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0057] Figure 1 A flow chart of the method for managing electronic certificates for verification and calibration of measuring instruments provided by the present invention;

[0058] Figure 2 This is a framework diagram of the measuring instrument verification and calibration electronic certificate management platform provided by the present invention. DETAILED DESCRIPTION

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0060] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0061] See also Figure 1 As shown, the present invention provides a method for managing electronic certificates for verification and calibration of measuring instruments, the method comprising the following steps:

[0062] Step S1: Import the first measuring instrument information into the management platform and upload a scanned copy of the external verification certificate of the archived measuring instrument;

[0063] Specifically, the first measuring instrument information includes basic information about the compulsorily inspected measuring instruments and verification information for the compulsorily inspected measuring instruments by the legal metrology verification agency. Compulsorily inspected measuring instruments include fuel dispensers, gas dispensers, hydrogen dispensers, diesel exhaust fluid dispensers, and other fuel dispensers. Uploaded scanned copies will be archived for at least three verification cycles.

[0064] Step S2: Import the second measuring instrument information into the management platform and issue an electronic certificate for internal verification or calibration of the measuring instrument;

[0065] Specifically, the following steps are included:

[0066] Step S21: After the metrology verification personnel verify or calibrate the non-mandatory verification measuring instruments, they enter the second measuring instrument information individually or in batches into the management platform and upload the original metrology verification records;

[0067] It should be further explained that the second measuring instrument information includes basic information of non-compulsory calibration measuring instruments and calibration information of non-compulsory calibration measuring instruments by metrological calibration personnel.

[0068] Step S22: Verify, check, and approve the level 3 corresponding authority verification and management platform review of the imported second measuring instrument information and the uploaded metrological verification original records;

[0069] It should be further explained that if any problems are found during the review process, the reviewer may choose to reject the application, and the submitter or verifier will verify and modify it and submit it again after improvement.

[0070] Step S23: The system automatically extracts the required information, generates an electronic certificate of verification or calibration of the measuring instrument with one click, and includes the signature of the auditor and the company's special verification seal.

[0071] Step S3: Each level can query the electronic certificate in real time on the management platform, and can download and print the electronic certificate;

[0072] The specific levels include province, city, county and station. A unique identification QR code is provided on each electronic certificate. The mobile APP application can retrieve and review the certificate by scanning the QR code. The PC management platform can download and print the certificate at any time, which solves the problem of lack of regulations for the long-term storage of paper certificates, avoids spending a lot of time on certificate production, and directly reduces the cost of issuing paper certificates.

[0073] It should be further explained that the permissions of each level are also different, as follows:

[0074] Provincial company: adding, batch importing, editing, deleting and reviewing information of measuring instruments such as thermometers, density meters, dipsticks, standard metal barrels (internal verification or calibration), uploading original measurement records, generating electronic certificates, viewing, printing and downloading information of various measuring instruments, provincial statistical tables and details.

[0075] Municipal branches or joint ventures (hereinafter referred to as municipal branches): Add, batch import, edit and delete information on standard metal drums (internally calibrated), horizontal tanks, etc.; upload original measurement records, volume tables, etc.; generate electronic certificates; view, print and download information on various measuring instruments; and provide municipal-level statistical tables and details.

[0076] County and district companies: Add, batch import, edit and delete standard metal barrels (external calibration) information, upload scanned copies of calibration certificates, dynamically maintain the usage status of various measuring instruments, view, print and download information of various measuring instruments, and provide county and district-level statistical tables and details.

[0077] Gas stations: Add, batch import, edit and delete information on gas pumps, gas pumps, hydrogen pumps, diesel exhaust treatment fluid dispensers, other fuel dispensers, upload scanned copies of calibration certificates, dynamically maintain the usage status of various measuring instruments, view, print and download information on various measuring instruments, and provide station-level statistical tables and details.

[0078] Step S4: The management platform dynamically records the status of the measuring instrument to achieve full life cycle management and control;

[0079] Specifically, the status of measuring instruments includes information on each measuring instrument's receipt, use, deactivation, scrapping, and cross-calibration cycle. This allows for dynamic tracking and control of the entire life cycle of electronic certificates.

[0080] Step S5: The management platform establishes an electronic information file with data analysis, validity period warning and alarm functions to prevent the risk of certificate expiration.

[0081] The specific steps include:

[0082] Step S51: The management platform automatically extracts the basic information of the electronic certificate, establishes an online electronic information archive of the measuring instrument, forms a multi-dimensional statistical table, provides real-time data statistical analysis, and displays information of different categories of measuring instruments at all levels and corresponding electronic verification information;

[0083] It needs to be further explained that by establishing an online electronic information archive for measuring instruments, it is convenient for management personnel to dynamically grasp the certificate data and implement supervision, reminders, assessments, rewards and penalties.

[0084] Step S52: Monitor the validity of the electronic certificate based on the established online electronic information file of the measuring instrument. If the electronic certificate is about to expire in 3 months, execute step S53; if the electronic certificate has expired, execute step S54;

[0085] Step S53: Issue an early warning prompt to remind all levels to complete the inspection work in advance to avoid overdue inspection;

[0086] Step S54: Include it in the overdue alarm statistics as a basis for punishment for inadequate management.

[0087] See also Figure 2 As shown, the present invention also provides an electronic certificate management platform for verification and calibration of measuring instruments, which includes an import and upload module 1, an electronic certificate issuance module 2, an electronic certificate query module 3, an electronic certificate download and printing module 4, a life cycle management module 5, an electronic information archive establishment module 6 and an electronic certificate monitoring module 7.

[0088] The import and upload module 1 is used to import measuring instrument information and upload scanned copies of archived measuring instrument calibration certificates. It should be noted that the measuring instrument information includes the basic information of mandatory calibration measuring instruments, the calibration information of mandatory calibration measuring instruments by statutory metrology calibration agencies, the basic information of non-mandatory calibration measuring instruments, and the calibration information of non-mandatory calibration measuring instruments by metrology calibration personnel.

[0089] The electronic certificate issuing module 2 is used to issue an internal verification or calibration electronic certificate.

[0090] The electronic certificate query module 3 is used to query electronic certificates at each level in real time.

[0091] The electronic certificate downloading and printing module 4 is used to download and print the electronic certificate.

[0092] The life cycle management and control module 5 is used to dynamically record the status of the measuring instrument and perform full life cycle management and control.

[0093] The electronic information file establishment module 6 is used to establish an online electronic information file of the measuring instrument based on the extracted basic information of the electronic certificate for data statistical analysis.

[0094] The electronic certificate monitoring module 7 is used to monitor the validity of the electronic certificate based on the established online electronic information file of the measuring instrument.

[0095] The beneficial effects of the method for managing metrological verification and calibration electronic certificates provided by the present invention are:

[0096] 1. The management platform uploads the verification certificates of externally verified measuring instruments, comprehensively controlling the authenticity, timeliness, and legality of external verification, and supporting effective management at all levels;

[0097] 2. The management platform realizes the whole process of production, approval and issuance of electronic certificates for internal verification or calibration of measuring instruments, eliminating the original cumbersome paper certificates, reducing the issuance costs of paper certificates, simplifying the issuance process of paper certificates, and improving work efficiency. In addition, electronic certificates are easy to query, download and print at any time, and have anti-counterfeiting functions such as QR code verification and watermark comparison, creatively realizing the informatization of the issuance of verification certificates for measuring instruments;

[0098] 3. The management platform includes the basic information of all measuring instruments used in gas stations. By extracting relevant information, it generates a complete management ledger. It has the functions of early warning and alarm for the expiration of measuring instruments, preventing the risk of certificate expiration and the resulting illegal and irregular activities.

[0099] 4. The management platform can register and dynamically track the usage status of gas station metering instruments, and fully record the entire life cycle from activation to scrapping, facilitating traceability verification and query;

[0100] 5. Based on the basic information, calibration information, usage information, etc. of gas station metering instruments, the management platform can conduct multi-dimensional and multi-category big data statistical analysis, providing effective support for enterprise managers to achieve digital management.

[0101] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and the embodiments. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to specific details.

Claims

1. A method for managing electronic certificates for metrology verification and calibration, characterized in that: The method comprises the following steps: Step S1, importing the first measuring instrument information on the management platform, uploading a scanned copy of the external verification certificate of the archived measuring instrument, the first measuring instrument information includes the basic information of the mandatory verification measuring instrument and the verification information of the mandatory verification measuring instrument by the legal measurement verification agency; Step S2: import the second measuring instrument information into the management platform and issue an electronic certificate for internal verification or calibration of the measuring instrument, wherein the second measuring instrument information includes basic information of the non-mandatory verification measuring instrument and verification information of the non-mandatory verification measuring instrument by the verification personnel; Step S3: Each level can query the electronic certificate in real time on the management platform, and can download and print the electronic certificate; Step S4: The management platform dynamically records the status of the measuring instrument to achieve full life cycle management and control; Step S5: The management platform establishes an electronic information file with data analysis and validity period warning and alarm functions to prevent the risk of certificate expiration.

2. The method for managing electronic certificates for verification and calibration of measuring instruments according to claim 1, characterized in that: The mandatory inspection measuring instruments include fuel dispensers, gas dispensers, hydrogen dispensers, diesel exhaust treatment fluid dispensers and other fuel dispensers.

3. The method for managing electronic certificates for verification and calibration of measuring instruments according to claim 1, characterized in that: Step S2 specifically includes the following steps: Step S21: After the metrology verification personnel verify or calibrate the non-mandatory verification metrology instruments, they enter the second metrology instrument information individually or in batches into the management platform, and upload the original metrology verification records; Step S22: Verify, check, and approve the level 3 corresponding authority verification and management platform review of the imported second measuring instrument information and the uploaded metrological verification original record; Step S23: The system automatically extracts the required information, generates an electronic certificate for verification or calibration of the measuring instrument with one click, and brings in the signature of the auditor and the company's special verification seal.

4. The method for managing electronic certificates for verification and calibration of measuring instruments according to claim 1, characterized in that: In step S3, the hierarchy includes four levels: province, prefecture, county and station. A unique identification QR code is provided on each electronic certificate, and the mobile APP application can retrieve and review the certificate by scanning the QR code.

5. The method for managing electronic certificates for verification and calibration of measuring instruments according to claim 1, characterized in that: In step S4, the measuring instrument status includes the receipt information, in-use information, out-of-use information, scrapping information and cross-calibration cycle information of each measuring instrument.

6. The method for managing electronic certificates for verification and calibration of measuring instruments according to claim 1, characterized in that: Step S5 specifically includes the following steps: Step S51: The management platform automatically extracts the basic information of the electronic certificate, establishes an online electronic information archive of the measuring instrument, forms a multi-dimensional statistical table, provides real-time data statistical analysis, and displays the information of different categories of measuring instruments at all levels and the corresponding verification electronic information; Step S52: monitor the validity of the electronic certificate according to the established online electronic information file of the measuring instrument. If the electronic certificate is about to expire in 3 months, execute step S53; if the electronic certificate is expired, execute step S54; Step S53: Issue an early warning to remind all levels to complete the inspection work in advance to avoid overdue inspection; Step S54: Include it in the overdue alarm statistics as a basis for punishment for inadequate management.

7. A measurement instrument verification and calibration electronic certificate management platform, characterized in that: The management platform includes: Import and upload module, used to import measuring instrument information and upload scanned copies of archived measuring instrument verification certificates, the measuring instrument information includes basic information of mandatory verification measuring instruments, verification information of mandatory verification measuring instruments by legal metrological verification institutions, basic information of non-mandatory verification measuring instruments, and verification information of non-mandatory verification measuring instruments by metrological verification personnel; Electronic certificate issuance module, used to issue internal verification or calibration electronic certificates; Electronic certificate query module, used for real-time query of electronic certificates at all levels; Electronic certificate download and print module, used to download and print electronic certificates; Lifecycle management and control module, used to dynamically record the status of measuring instruments and conduct full lifecycle management and control; An electronic information file establishment module, used to establish an online electronic information file of the measuring instrument based on the extracted basic information of the electronic certificate; and The electronic certificate monitoring module is used to monitor the validity of electronic certificates based on the established online electronic information archive of measuring instruments.

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