A hydrogenation machine calibration method, device, terminal and storage medium

Abstract

The present application relates to a hydrogenation machine calibration method, device, terminal and storage medium, and to the technical field of hydrogenation machine calibration. The calibration method includes: connecting the calibration device between the hydrogenation machine and the hydrogen storage device in response to a request to construct a hydrogen flow channel between the hydrogenation machine, the calibration device and the hydrogen storage device; obtaining calibration-related data, and constructing a calibration model based on the calibration-related data; and calibrating and analyzing the hydrogenation of the hydrogenation machine based on the calibration model to obtain an analysis result. The present application has the effect of avoiding the potential safety hazard caused by the hydrogenation machine releasing hydrogen at the hydrogenation station.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogenation machine calibration, and in particular to a hydrogenation machine calibration method, device, terminal and storage medium. Background Art

[0002] The promotion of fuel cell vehicles requires the support of ground refueling systems, and the popularization of hydrogen refueling stations is imperative. As one of the important components of hydrogen refueling stations, hydrogen refueling machines undertake the functions of test refueling of hydrogen fuel cell vehicles, refueling and testing of on-board hydrogen storage systems, etc.

[0003] The process of hydrogen refueling involves trade settlement. According to the requirements of the National Measurement Law, the hydrogen refueling machine should be subject to mandatory inspection. The national standard "GB / T31138-2022 Compressed Hydrogen Refueling Machine for Automobiles" stipulates three measurement indicators of hydrogen refueling machines, with a maximum allowable error of ±1.5%; the measurement repeatability should not exceed 0.5%; and the hydrogen refueling flow rate should not exceed 7.2kg / min. At the same time, the standard requires that 35MPa and 70MPa hydrogen refueling machines should be tested at least three times in two test intervals R(3) and R(4), respectively. Therefore, after each calculation test, all hydrogen needs to be discharged before the next test can be carried out. If it is in the hydrogen refueling machine manufacturing and testing plant, it can be connected to the factory discharge pipeline for discharge or recycling; however, if the calibration is carried out on-site at the hydrogen refueling station, it is impossible to connect to the hydrogen refueling station discharge pipeline, and on-site discharge will cause safety hazards. Summary of the invention

[0004] The purpose of the present application is to provide a hydrogenation machine calibration method, device, terminal and storage medium, which are used to solve the potential safety hazard caused by on-site discharge when the hydrogenation machine is calibrated on-site.

[0005] In the first aspect, the present application provides a hydrogenation machine calibration method, which adopts the following technical solution:

[0006] A hydrogenation machine calibration method, comprising:

[0007] In response to the request, the verification device is connected between the hydrogenator and the hydrogen storage device to construct a hydrogen flow channel between the hydrogenator, the verification device and the hydrogen storage device;

[0008] Acquire verification-related data, and construct a verification model based on the verification-related data;

[0009] The hydrogenation condition of the hydrogenator is calibrated and analyzed according to the calibration model to obtain analysis results.

[0010] By adopting the above technical solution, the calibration device is installed between the hydrogenator and the hydrogen storage device, so that a hydrogen flow channel can be formed between the hydrogenator, the calibration device and the hydrogen storage device. If the hydrogenator is calibrated at the hydrogen station, the hydrogen after the calibration is recovered through the hydrogen storage device, thereby avoiding the safety hazard caused by leakage at the hydrogen station. At the same time, a calibration model can be constructed based on the data obtained during the calibration process, so as to facilitate data analysis of the calibration status of the hydrogenator according to the calibration model.

[0011] Optionally, the obtaining of verification-related data and constructing a verification model according to the verification-related data specifically includes:

[0012] Starting the hydrogenator to start supplying gas;

[0013] The flow data in the hydrogen flow channel is collected in real time by a high-precision mass flow meter in the calibration device;

[0014] A first model is constructed according to the flow data and the collection time.

[0015] By adopting the above technical solution, the flow data in the hydrogen flow channel is collected in real time by a high-precision mass flow meter, and a first model can be constructed based on the real-time collected flow data and the collection time, so as to facilitate the subsequent call of the first model to calibrate the hydrogen filling machine.

[0016] Optionally, the step of performing a calibration analysis on the hydrogenation condition of the hydrogenator according to the calibration model to obtain a calibration result specifically includes:

[0017] Determining whether the hydrogenation machine has an automatic shutdown function according to the first model;

[0018] If the flow data does not fluctuate within a preset time period, it is determined that the hydrogenation machine has an automatic shutdown function;

[0019] If the flow data fluctuates within the preset time period, it is determined that the hydrogen refueling machine does not have an automatic shutdown function.

[0020] By adopting the above technical solution, by calling the first model and judging whether the flow data fluctuates within a preset time period, it is convenient for users to know whether the hydrogen filling machine has an automatic shutdown function.

[0021] Optionally, the obtaining of verification-related data and constructing a verification model according to the verification-related data specifically includes:

[0022] Starting the hydrogenator to start supplying gas;

[0023] After the first time, shut down the air inlet of the hydrogenator and the hydrogen storage device;

[0024] The pressure data in the hydrogen flow channel is collected in real time by the high-precision pressure transmitter of the calibration device;

[0025] A second model is constructed according to the pressure data and the acquisition time.

[0026] By adopting the above technical solution, after the hydrogenator continues to supply gas for the first period of time, the hydrogenator and the air inlet of the hydrogen storage device are turned off, and the pressure data in the hydrogen flow channel is collected in real time through a high-precision pressure transmitter. A second model can be constructed based on the real-time collected pressure data and the collection time, thereby facilitating the subsequent call of the second model to calibrate the hydrogenator.

[0027] Optionally, the step of performing a calibration analysis on the hydrogenation condition of the hydrogenator according to the calibration model to obtain a calibration result specifically includes:

[0028] Determining whether the air tightness of the hydrogen flow channel meets the standard according to the second model;

[0029] If the fluctuation value of the pressure data within the second time is within the first threshold range, it is determined that the air tightness of the hydrogen flow channel meets the standard;

[0030] If the fluctuation value of the pressure data within the second time is not within the first threshold range, it is determined that the airtightness of the hydrogen flow channel does not meet the standard.

[0031] By adopting the above technical solution, by calling the second model and judging whether the fluctuation value of the real-time collected pressure data within the second time is within the first threshold range, it is convenient for users to know whether the air tightness of the hydrogen flow channel meets the standards.

[0032] Optionally, it also includes:

[0033] Collecting image data of the hydrogenation machine;

[0034] Processing the image data to obtain dial parameter data of the hydrogenation machine;

[0035] Judging whether the hydrogen refueling machine is in a stable use state according to the flow data and the dial parameter data;

[0036] If the flow data is consistent with the dial parameter data, it is determined that the hydrogen refueling machine is in a stable use state;

[0037] If the flow data is inconsistent with the dial parameter data, it is determined that the hydrogen refueling machine is not in a stable use state.

[0038] By adopting the above technical solution, the image data of the hydrogen filling machine is collected to extract the dial parameter data in the image data, and it is determined whether the flow data collected in real time is consistent with the dial parameter data, so that the user can know whether the hydrogen filling machine is in a stable use state.

[0039] Optionally, it also includes:

[0040] Obtaining weighing data of the hydrogen storage device;

[0041] Determine whether the flow data and / or the dial parameter data are accurate according to the weighing data;

[0042] If the flow data and / or the dial parameter data are consistent with the weighing data, the flow data and / or the dial parameter data are deemed to be accurate;

[0043] If the flow data and / or the dial parameter data are inconsistent with the weighing data, it is determined that the flow data and / or the dial parameter data are inaccurate.

[0044] By adopting the above technical solution, the weighing data is used as the reference data, and the weighing data, flow data and / or dial parameter data are compared and analyzed, so that it is convenient for users to verify the flow data and / or dial parameter data.

[0045] In the second aspect, the present application provides a hydrogenation machine calibration device, which adopts the following technical solution:

[0046] A hydrogenation machine calibration device, comprising:

[0047] A response module, for connecting the verification device between the hydrogenator and the hydrogen storage device in response to the request, so as to construct a hydrogen flow channel between the hydrogenator, the verification device and the hydrogen storage device;

[0048] A construction module, used to obtain verification-related data and construct a verification model based on the verification-related data;

[0049] The analysis module performs a test analysis on the hydrogenation condition of the hydrogenation machine according to the test model to obtain an analysis result.

[0050] By adopting the above technical solution, the calibration device is installed between the hydrogenator and the hydrogen storage device, so that a hydrogen flow channel can be formed between the hydrogenator, the calibration device and the hydrogen storage device. If the hydrogenator is calibrated at the hydrogen station, the hydrogen after the calibration is recovered through the hydrogen storage device, thereby avoiding the safety hazard caused by leakage at the hydrogen station. At the same time, a calibration model can be constructed based on the data obtained during the calibration process, so as to facilitate data analysis of the calibration status of the hydrogenator according to the calibration model.

[0051] In a third aspect, the present application provides a terminal that adopts the following technical solution:

[0052] A terminal comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the method of the first aspect when loading the computer program.

[0053] By adopting the above technical solution, the method of the first aspect is generated into a computer program and stored in the computer program so as to be loaded and executed by the processor, so that the user can establish a connection with the device through the terminal and query the various contents processed by the device.

[0054] In a fourth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solution:

[0055] A computer-readable storage medium stores a computer program, and when the computer program is loaded by a processor, the method of the first aspect is executed.

[0056] By adopting the above technical solution, the method of the first aspect is generated into a computer program and stored in a computer-readable storage medium. After the computer-readable storage medium is loaded into any computer, any computer can execute the method of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 is a method flow chart of steps S100-S300 in an embodiment of the present application;

[0058] Figure 2 It is a schematic diagram of the connection between the hydrogenator, the calibration device and the hydrogen storage device in the embodiment of the present application;

[0059] Figure 3 is a method flow chart of steps S210-S230 in an embodiment of the present application;

[0060] Figure 4 is a graph of flow data and collection time in an embodiment of the present application;

[0061] Figure 5 is a method flow chart of steps S240-S270 in an embodiment of the present application;

[0062] Figure 6 is a graph of pressure data and acquisition time in an embodiment of the present application;

[0063] Figure 7 is a method flow chart of steps S310-S330 in an embodiment of the present application;

[0064] Figure 8is a method flow chart of steps S340-S360 in an embodiment of the present application;

[0065] Fig. 9 is a method flow chart of steps S410-S450 in an embodiment of the present application;

[0066] Fig.10 is a method flow chart of steps S510-S540 in an embodiment of the present application;

[0067] Fig.11 It is a module framework diagram of the hydrogenation machine calibration device of the present application;

[0068] Fig.12 It is a module framework diagram of the control system of the hydrogenation machine calibration device in the embodiment of the present application;

[0069] In the figure, 1. Response module; 2. Construction module; 3. Analysis module. DETAILED DESCRIPTION

[0070] The following is combined with Figure 1 -Attached Fig.12 , further details of this application are given.

[0071] A method for testing a hydrogenation machine, referring to Figure 1 and Figure 2 , the method specifically comprises the following steps:

[0072] S100: In response to the request, the verification device is connected between the hydrogenator and the hydrogen storage device to construct a hydrogen flow channel between the hydrogenator, the verification device and the hydrogen storage device.

[0073] In one embodiment of the present application, according to the user's calibration requirements, a calibration device is installed between the hydrogenator and the hydrogen storage device, so that the hydrogenator, the calibration device and the hydrogen storage device can form a hydrogen flow channel for transporting hydrogen.

[0074] Among them, the hydrogen in the hydrogen filling machine passes through the calibration device and the hydrogen storage device, and is finally added to the fuel cell vehicle-mounted hydrogen storage bottle; and the calibration device is equipped with a high-precision mass flow meter and a high-precision pressure transmitter.

[0075] S200: Acquire verification-related data, and construct a verification model based on the verification-related data.

[0076] Among them, in one embodiment of the present application, refer to Figure 3 and Figure 4 , step S200 specifically includes the following steps: S210: starting the hydrogenation machine, and the hydrogenation machine starts to supply gas;

[0077] S220: collecting flow data in the hydrogen flow channel in real time through a high-precision mass flow meter in the calibration device;

[0078] S230: Construct a first model according to the traffic data and the collection time.

[0079] Among them, the hydrogen filling machine is started to start supplying gas, and the hydrogen finally flows to the hydrogen storage device through the hydrogen flow channel. Then, the flow data in the hydrogen flow channel is collected by the high-precision mass flow meter in the calibration device, and a flow and time curve graph is constructed based on the collected flow data and the collection time. Specifically, the curve graph is constructed with time as the horizontal axis and flow as the vertical axis.

[0080] Among them, in one embodiment of the present application, refer to Figure 5 and Figure 6 , step S200 specifically further includes the following steps: S240: starting the hydrogenation machine, and the hydrogenation machine starts to supply gas;

[0081] S250: shut down the air inlet of the hydrogenator and the hydrogen storage device as soon as possible;

[0082] S260: The high-precision pressure transmitter of the calibration device collects the pressure data in the hydrogen flow channel in real time;

[0083] S270: Construct a second model according to the pressure data and the acquisition time.

[0084] The first time in this embodiment is set to 3s. Of course, the set value of the first time can also be adjusted according to the actual test situation.

[0085] Among them, the hydrogen filling machine is started to supply gas, and the hydrogen finally flows to the hydrogen storage device through the hydrogen flow channel. The hydrogen filling machine is shut down 3 seconds after the hydrogen filling machine supplies gas, and the air inlet of the hydrogen storage device is closed, so that the two ends of the hydrogen flow channel are closed, and then the pressure data in the hydrogen flow channel is collected by the high-precision pressure transmitter of the calibration device, and a pressure and time curve graph is constructed according to the collected pressure data and the collection time; specifically, the curve graph is constructed with time as the horizontal axis and pressure as the vertical axis.

[0086] S300: Performing a calibration analysis on the hydrogenation condition of the hydrogenation machine according to the calibration model to obtain an analysis result.

[0087] Among them, in one embodiment of the present application, refer to Figure 4 and Figure 7 , step S300 specifically includes the following steps:

[0088] S310: Determine whether the hydrogenation machine has an automatic shutdown function according to the first model;

[0089] S320: If the flow data does not fluctuate within the preset time period, it is determined that the hydrogen refueling machine has an automatic shutdown function;

[0090] S330: If the flow data fluctuates within a preset time period, it is determined that the hydrogen refueling machine does not have an automatic shutdown function.

[0091] Among them, the automatic shutdown function in this embodiment refers to the 3s shutdown function of the hydrogen filling machine. Of course, according to the actual calibration situation, the automatic shutdown function can also be set to the ns shutdown function of the hydrogen filling machine. This application does not impose any restrictions on this.

[0092] Among them, the preset time period in this embodiment can be set to 3s, so as to correspond to the 3s shutdown function of the hydrogen filling machine, thereby facilitating the judgment of whether the hydrogen filling machine has the 3s shutdown function.

[0093] Among them, by analyzing the curve graph constructed in step S230, if the flow data monitored on the high-precision mass flow meter does not fluctuate (does not increase) within 3 seconds, it can be determined that the hydrogenation machine has a shutdown function for 3 seconds; conversely, if the flow data monitored on the high-precision mass flow meter fluctuates (increases) within 3 seconds, it can be determined that the hydrogenation machine does not have a shutdown function for 3 seconds; thus, based on the constructed curve graph, it can be conveniently determined whether the hydrogenation machine has a shutdown function for 3 seconds.

[0094] In this embodiment, the minimum flow rate monitored by the high-precision mass flow meter in actual application is 0.2 kg / min.

[0095] Among them, in one embodiment of the present application, refer to Figure 6 and Figure 8 , step S300 specifically further includes the following steps: S340: judging whether the air tightness of the hydrogen flow channel meets the standard according to the second model;

[0096] S350: If the fluctuation value of the pressure data within the second time is within the first threshold range, it is determined that the air tightness of the hydrogen flow channel meets the standard;

[0097] S360: If the fluctuation value of the pressure data within the second time is not within the first threshold range, it is determined that the air tightness of the hydrogen flow channel does not meet the standard.

[0098] Among them, the second time in this embodiment is set to 30s, and the first threshold range in this embodiment is set to 0-0.05MPa.

[0099] Among them, by analyzing the curve graph constructed in step S270, if the fluctuation value of the pressure data monitored on the high-precision pressure transmitter within 30s is within 0-0.05MPa (mainly refers to a decrease of 0-0.05MPa), it can be determined that the airtightness of the hydrogen flow channel meets the standard, and then it can also be determined that the airtightness between the hydrogenator and the calibration device and between the calibration device and the hydrogen storage device meets the standard, and thus it can also be determined that the connection between the hydrogenator and the calibration device and between the calibration device and the hydrogen storage device is reliable; conversely, if the fluctuation value of the pressure data monitored on the high-precision pressure transmitter within 30s is not within 0-0.05MPa (mainly refers to a decrease of 0-0.05MPa), it can be determined that the airtightness of the hydrogen flow channel does not meet the marking, and then it can also be determined that the airtightness between the hydrogenator and the calibration device and between the calibration device and the hydrogen storage device does not meet the standard, and thus it can also be determined that the connection between the hydrogenator and the calibration device and between the calibration device and the hydrogen storage device is unreliable.

[0100] Among them, in one embodiment of the present application, refer to Fig. 9 , the hydrogenation machine verification method may further include the following steps: S410: collecting image data of the hydrogenation machine;

[0101] S420: Process the image data to obtain dial parameter data of the hydrogenation machine;

[0102] S430: judging whether the hydrogen refueling machine is in a stable use state according to the flow data and the dial parameter data;

[0103] S440: If the flow data is consistent with the dial parameter data, it is determined that the hydrogen refueling machine is in a stable use state;

[0104] S450: If the flow data is inconsistent with the dial parameter data, it is determined that the hydrogen refueling machine is not in a stable use state.

[0105] The dial parameter data in this embodiment refers to the hydrogenation amount data displayed on the hydrogenation machine.

[0106] Among them, the image information of the hydrogen filling machine is collected by a high-definition camera, and the video stream of the collected image information is intercepted to extract a frame of image, and the hydrogenation amount data of the hydrogen filling machine is obtained from the extracted frame of image, and the flow data monitored by the high-precision mass flow meter is compared with the hydrogenation amount data displayed on the hydrogen filling machine. If the flow data monitored on the high-precision mass flow meter is consistent with the hydrogenation amount data displayed on the hydrogen filling machine, it can be determined that the hydrogen filling machine is in a stable use state; conversely, if the flow data monitored on the high-precision mass flow meter is inconsistent with the hydrogenation amount data displayed on the hydrogen filling machine, it can be determined that the hydrogen filling machine is not in a stable use state.

[0107] In one embodiment of the present application, video stream interception is performed on the collected image information to extract a frame of image, which may specifically include the following steps:

[0108] The video stream of the hydrogenation machine is intercepted according to the video stream interception program to obtain video stream data, and the video stream data includes video stream information of each frame of the image;

[0109] Filter the video stream information of each frame of image according to the image filtering program to obtain image information that meets the conditions;

[0110] The image information meeting the conditions is analyzed according to the image analysis program to obtain an analysis result, and the analysis result includes at least one frame of image.

[0111] Therefore, according to the above steps, a relatively high-definition image can be captured from the video stream of the hydrogen filling machine, and then the hydrogen filling amount data of the hydrogen filling machine can be extracted from the relatively high-definition image.

[0112] Among them, by judging whether the hydrogen refueling machine is in a stable state of use, it is possible to monitor whether the staff of the hydrogen refueling station has adjusted the hydrogen refueling machine or whether there is a leak in the hydrogen flow channel, so that when the hydrogen refueling machine is refueling the fuel cell vehicle, the hydrogen refueling amount data displayed on the hydrogen refueling machine is inconsistent with the monitored hydrogen refueling flow data (mainly referring to the hydrogen refueling amount data displayed on the hydrogen refueling machine being higher than the monitored hydrogen refueling flow data), causing losses to consumers.

[0113] Among them, in one embodiment of the present application, refer to Fig.10 The hydrogenation machine verification method may further include the following steps:

[0114] S510: Obtaining weighing data of the hydrogen storage device;

[0115] S520: judging whether the flow data and / or dial parameter data are accurate according to the weighing data;

[0116] S530: If the flow data and / or dial parameter data are consistent with the weighing data, the flow data and / or dial parameter data are deemed to be accurate;

[0117] S540: If the flow data and / or dial parameter data are inconsistent with the weighing data, it is determined that the flow data and / or dial parameter data are inaccurate.

[0118] The weighing data in this embodiment is the actual hydrogenation amount data, and the weighing data in this embodiment is only used as relevant evidence when the calibration device data is questioned.

[0119] Among them, the hydrogen in the hydrogen storage device is weighed by the weighing device provided on the hydrogen storage device to obtain the actual hydrogenation amount data, and the actual hydrogenation amount data, the monitored flow data and / or the hydrogenation amount data displayed on the hydrogenation machine are compared and analyzed. If the monitored flow data and / or the displayed hydrogenation amount data are consistent with the actual hydrogenation amount data, it can be determined that the monitored flow data and / or the displayed hydrogenation amount data are accurate; conversely, if the monitored flow data and / or the displayed hydrogenation amount data are inconsistent with the actual hydrogenation amount data, it can be determined that the monitored flow data and / or the displayed hydrogenation amount data are inaccurate.

[0120] Among them, the accuracy level of the weighing device in this embodiment is not lower than Level II, GB / T31138-2022 stipulates that the accuracy is not lower than Level II, the calibration division value is not higher than 2g, and the maximum range is determined based on the total mass of the gas filling volume, hydrogen storage cylinder, pipeline and bracket.

[0121] Among them, by comparing and analyzing the monitored flow data and / or the displayed hydrogenation amount data according to the actual hydrogenation amount data, it is possible to further determine whether the hydrogenation machine has been adjusted or whether there is leakage in the hydrogen flow channel.

[0122] Among them, when the monitored flow data is inconsistent with the actual hydrogenation amount data (mainly refers to the monitored flow data is higher than the actual hydrogenation amount data), it is possible that a leak has occurred in the hydrogen flow channel.

[0123] Among them, if the displayed hydrogenation amount data is inconsistent with the actual hydrogenation amount data (mainly the displayed hydrogenation amount data is higher than the actual hydrogenation amount data), it may be that the hydrogenation machine has been adjusted or the hydrogen flow channel has leaked.

[0124] The implementation principle of the embodiment of the present application is: constructing a hydrogen flow channel between the hydrogenator, the calibration device and the hydrogen storage device, collecting calibration-related data, and constructing a calibration model based on the collected calibration-related data, and then using the constructed calibration model to perform calibration analysis on the hydrogenation condition of the hydrogenator to obtain analysis results; thereby facilitating data analysis of the calibration condition of the hydrogenator based on the calibration model.

[0125] The present application embodiment discloses a hydrogenation machine calibration device, referring to Fig.11 The device specifically includes a response module 1, a construction module 2 and an analysis module 3; wherein, with the help of the response module 1, the calibration device can be connected between the hydrogenator and the hydrogen storage device in response to a request to build a hydrogen flow channel between the hydrogenator, the calibration device and the hydrogen storage device; with the help of the construction module 2, the calibration-related data can be obtained, and a calibration model can be built according to the calibration-related data; with the help of the analysis module 3, the hydrogenation condition of the hydrogenator can be calibrated and analyzed according to the calibration model to obtain the analysis result.

[0126] In one embodiment of the present application, the hydrogenation machine calibration device of this embodiment adopts the hydrogenation machine calibration method of the above embodiment when it is used specifically, so the specific application content of the hydrogenation machine calibration device is not repeated here.

[0127] In one embodiment of the present application, the data calibrated by the hydrogenation machine calibration device will be uploaded to the cloud for storage, and the user can retrieve the required data from the cloud via RS485 or Modbus.

[0128] In one embodiment of the present application, the logical structure table of the hydrogenation machine calibration device is as follows:

[0129] Table 1: ca_info verification certificate information table

[0130]

[0131] Table 2: p_log test data table

[0132]

[0133]

[0134] Table 3: r_log calibration data modification record

[0135]

[0136] Among them, in one embodiment of the present application, the calibration device is controlled by the control system of the calibration device during specific application. The control system of the calibration device in this embodiment can adopt the Linux system. Of course, other operating systems can also be adopted according to actual usage requirements. This application does not impose any restrictions on this. Specifically, the control system of the calibration device includes a front-end interface module, a data storage module, a camera module, an image and text recognition module, a flow meter reading module, a pressure reading module and a data calculation module.

[0137] Among them, each module in this embodiment communicates through RS485 or Modbus protocol.

[0138] Among them, in this embodiment, refer to Fig.12The front-end interface module is used for user operation and display control data, for example, processed parameter data, and the front-end interface module can use a fixed terminal or a mobile terminal. The fixed terminal can use a desktop computer, and the mobile terminal can use a laptop or a mobile phone; the data storage module is used to store control data and information about the inspection unit and the calibration unit. The data storage module in this embodiment uses the myspl database; the camera module is used to collect image data of the hydrogen filling machine. The camera module in this embodiment can use a Hikvision network camera; the image and text recognition module is used to identify the image data collected by the camera module to obtain the reading data displayed on the display screen of the hydrogen filling machine. The image and text recognition module in this embodiment can use Baidu calculation box; the flow meter reading module is used to collect the hydrogen flow data in the hydrogen flow channel in real time; the pressure reading module is used to collect the pressure data in the hydrogen flow channel in real time; the data calculation module is used to organize the collected data and calculate the calibration results.

[0139] Among them, in this embodiment, a plurality of function buttons are arranged on the front-end interface module, specifically including a start function, a stop function, a data query function, a start flow meter reading function, a stop flow meter reading function, a start picture reading function, a stop picture reading function, a single indication error function, an interval function, a collection function, a clear function, a record function, a modification function, a calibration calculation function and a calibration certificate information entry function; specifically, the start function refers to turning on the calculation box camera and the serial port, the stop function refers to turning off the calculation box camera and the serial port, the data query function refers to querying historical calibration records, the start flow meter reading function refers to the total accumulated data of the flow meter at the beginning, and the stop flow meter reading function refers to the total accumulated data of the flow meter at the end, The starting picture reading function refers to the hydrogenator reading at the beginning, the ending picture reading function refers to the hydrogenator reading at the end, the single indication error function refers to the data error of this time, the interval function refers to selecting the hydrogenator calibration difference R1 or R2, the acquisition function refers to reading the current flow meter flow and taking pictures, the clearing function means that when uncontrollable factors occur on site, the data collected this time will be invalidated, the recording function means that the data collected this time will be recorded and cannot be deleted, the modification function means manually modifying the picture reading when the image recognition error occurs, the calibration calculation function means that when the interval R1 and R2 calibration data simultaneously meet greater than or equal to 3 data, the calibration calculation can be performed and the calibration result can be calculated, and the calibration certificate information entry function means entering the certificate information of this calibration.

[0140] Among them, in one embodiment of the present application, the camera module mainly reads the video stream information collected by the camera and extracts a frame of image from the video stream information for subsequent processing; the front-end interface module accesses the camera module through the API and enters the controller layer. The controller layer calls the service layer for business processing and returns the business data.

[0141] Among them, in one embodiment of the present application, the image and text recognition module mainly calculates and processes a frame of image extracted by the camera module and returns data; the front-end interface module accesses the image and text recognition module through the API, enters the controller layer, the controller layer calls the service layer for business processing, and returns the business data.

[0142] Among them, in one embodiment of the present application, the flow meter reading module mainly reads the flow meter accumulated data, reads the current flow data and reads the current temperature data; the front-end interface module accesses the flow meter reading module through the API, enters the controller layer, the controller layer calls the service layer for business processing, and returns the business data.

[0143] Among them, the control system of the verification device has the following advantages when used:

[0144] 1. Unify data sources, systematically analyze and design, coordinate various data sources, and ensure data consistency and validity;

[0145] 2. By reviewing and constraining the data input into the database, the integrity of the database can be improved, and legitimate users can be prevented from adding semantically incompatible data to the database when using the database;

[0146] 3. By setting up authentication and authorization mechanisms, the security of the database can be improved to prevent illegal users from using the database or legal users from illegally using the database to cause data leakage, modification or destruction;

[0147] 4. The design of the database structure takes into account the needs of development and migration, and has good scalability, elasticity and moderate redundancy;

[0148] 5. Standardizing the design of the database can reduce exceptions and errors during database insertion, deletion, modification and other operations, and reduce data redundancy.

[0149] An embodiment of the present application discloses a terminal, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, wherein when the processor loads the computer program, the hydrogenation machine calibration method of the above embodiment is executed.

[0150] In one embodiment of the present application, the terminal may be a desktop computer, a laptop computer or a cloud server, and the terminal includes but is not limited to a processor and a memory. For example, the terminal may also include input and output devices, a network access device and a bus, etc.

[0151] In one embodiment of the present application, the processor may be a central processing unit (CPU). Of course, other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. may also be used depending on actual usage. The general-purpose processor may be a microprocessor or any conventional processor, etc., and the present application does not impose any restrictions on this.

[0152] In one embodiment of the present application, the memory may be an internal storage unit of the terminal, such as a hard disk or memory of the terminal, or an external storage device of the terminal, such as a plug-in hard disk, a smart memory card (SMC), a secure digital card (SD) or a flash memory card (FC) equipped on the terminal, and the memory may also be a combination of an internal storage unit and an external storage device of the terminal; the memory is used to store computer programs and other programs and data required by the terminal, and the memory may also be used to temporarily store data that has been output or is to be output, and the present application does not impose any restrictions on this.

[0153] Through the setting of this terminal, the hydrogenation machine calibration method of the above embodiment is stored in the terminal's memory, and is loaded and executed on the terminal's processor, so that the user can establish contact with the device through the terminal and query the various contents processed by the device.

[0154] An embodiment of the present application discloses a computer-readable storage medium, and a computer program is stored in the computer-readable storage medium, wherein when the computer program is loaded by a processor, the hydrogenation machine calibration method of the above embodiment is executed.

[0155] Among them, in one embodiment of the present application, a computer program can be stored in a computer-readable storage medium, and the computer program includes computer program code. The computer program code can be in the form of source code, object code, executable file or some middleware, etc. The computer-readable storage medium includes any entity or device that can carry the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the computer-readable storage medium includes but is not limited to the above-mentioned components.

[0156] Through the setting of the computer-readable storage medium, the hydrogenation machine calibration method of the above embodiment is stored in the computer-readable storage medium, and is loaded and executed on the processor. After the computer-readable storage medium is loaded into any computer, any computer can execute the hydrogenation machine calibration method of the above embodiment.

[0157] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hydrogenation machine calibration method, characterized in that: include: In response to the request, the verification device is connected between the hydrogenator and the hydrogen storage device to construct a hydrogen flow channel between the hydrogenator, the verification device and the hydrogen storage device; Acquire verification-related data, and construct a verification model based on the verification-related data; Performing a test analysis on the hydrogenation condition of the hydrogenator according to the test model to obtain an analysis result; The obtaining of verification-related data and constructing a verification model according to the verification-related data specifically includes: Starting the hydrogenator to start supplying gas; The flow data in the hydrogen flow channel is collected in real time by a high-precision mass flow meter in the calibration device; Constructing a first model according to the flow data and the collection time; The step of performing a test analysis on the hydrogenation condition of the hydrogenator according to the test model to obtain a test result specifically includes: Determining whether the hydrogenation machine has an automatic shutdown function according to the first model; If the flow data does not fluctuate within a preset time period, it is determined that the hydrogenation machine has an automatic shutdown function; If the flow data fluctuates within the preset time period, it is determined that the hydrogen refueling machine does not have an automatic shutdown function; The obtaining of verification-related data and constructing a verification model according to the verification-related data specifically includes: Starting the hydrogenator to start supplying gas; After the first time, shut down the air inlet of the hydrogenator and the hydrogen storage device; The pressure data in the hydrogen flow channel is collected in real time by the high-precision pressure transmitter of the calibration device; Constructing a second model according to the pressure data and the acquisition time; The step of performing a test analysis on the hydrogenation condition of the hydrogenator according to the test model to obtain a test result specifically includes: Determining whether the air tightness of the hydrogen flow channel meets the standard according to the second model; If the fluctuation value of the pressure data within the second time is within the first threshold range, it is determined that the air tightness of the hydrogen flow channel meets the standard; If the fluctuation value of the pressure data within the second time is not within the first threshold range, it is determined that the air tightness of the hydrogen flow channel does not meet the standard; Also includes: Collecting image data of the hydrogenation machine; Processing the image data to obtain dial parameter data of the hydrogenation machine; Judging whether the hydrogen refueling machine is in a stable use state according to the flow data and the dial parameter data; If the flow data is consistent with the dial parameter data, it is determined that the hydrogen refueling machine is in a stable use state; If the flow data is inconsistent with the dial parameter data, it is determined that the hydrogen refueling machine is not in a stable use state; Also includes: Obtaining weighing data of the hydrogen storage device; Determine whether the flow data and / or the dial parameter data are accurate according to the weighing data; If the flow data and / or the dial parameter data are consistent with the weighing data, the flow data and / or the dial parameter data are deemed to be accurate; If the flow data and / or the dial parameter data are inconsistent with the weighing data, it is determined that the flow data and / or the dial parameter data are inaccurate.

2. A hydrogenation machine calibration device, characterized in that: The hydrogenation machine calibration method according to claim 1 is adopted, and the device comprises: A response module (1) is used to connect the verification device between the hydrogen filling machine and the hydrogen storage device in response to the request, so as to establish a hydrogen flow channel between the hydrogen filling machine, the verification device and the hydrogen storage device; A construction module (2) is used to obtain verification-related data and construct a verification model based on the verification-related data; The analysis module (3) is used to perform a test analysis on the hydrogenation condition of the hydrogenation machine according to the test model to obtain an analysis result.

3. A terminal comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor, characterized in that: When the processor loads the computer program, the processor executes the method according to claim 1.

4. A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, characterized in that: When the computer program is loaded into a processor, the method according to claim 1 is executed.

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