Method and device for detecting hydrogen filling equipment, equipment and computer medium

Abstract

The present application provides a method and device for detecting hydrogen filling equipment, equipment and computer media, the method comprising: sending a test signal to a flow device, the flow device is used to measure the hydrogen flow through the hydrogen valve, if a feedback signal sent by the flow device is received, then the hydrogen valve is controlled to remain open within a first set time, and the hydrogen valve is closed after the first set time, the hydrogen flow recorded by the flow device within the first set time is used as the first hydrogen flow, and the hydrogen flow rate within the first set time is calculated based on the first hydrogen flow, which is the first hydrogen flow rate, if the first hydrogen flow rate is within the preset flow rate range, then the second hydrogen flow recorded by the flow device within the second set time is obtained to obtain the detection result of the hydrogen filling equipment. The present application ensures that hydrogen transactions can be conducted safely and fairly through the hydrogen filling equipment by detecting the hydrogen filling equipment.

Description

Technical Field

[0001] The present application relates to the field of energy technology, and specifically to a detection method and apparatus for hydrogen filling equipment, equipment and computer media. Background Art

[0002] Safe and fair hydrogen trading is an important condition for ensuring the safety of various hydrogen equipment and fair trading with trading partners. Therefore, ensuring the stability and reliability of hydrogen refueling equipment is the key to ensuring the safety of various energy equipment and fair trading with trading partners. However, hydrogen refueling equipment will inevitably be damaged over time, making it impossible to conduct safe and fair hydrogen trading.

[0003] Therefore, how to test hydrogen filling equipment and ensure that hydrogen transactions can be conducted safely and fairly through hydrogen filling equipment is an issue that needs to be addressed urgently. Summary of the invention

[0004] The purpose of this application is to solve the technical problem of how to detect hydrogen filling equipment and ensure that hydrogen trading can be carried out safely and fairly through hydrogen filling equipment.

[0005] According to one aspect of an embodiment of the present application, the present application provides a method for detecting a hydrogen filling device, the method comprising:

[0006] sending a test signal to a flow device, the flow device being used to measure the flow of hydrogen passing through the hydrogen valve;

[0007] If a feedback signal sent by the flow device is received, the hydrogen valve is controlled to remain open within a first set time, and the hydrogen valve is closed after the first set time, and the hydrogen flow rate within the first set time recorded by the flow device is used as the first hydrogen flow rate;

[0008] Calculate the hydrogen flow rate within a first set time according to the first hydrogen flow rate as the first hydrogen flow rate;

[0009] If the first hydrogen flow rate is within a preset flow rate range, the second hydrogen flow rate recorded by the flow device within a second set time is obtained to obtain the detection result of the hydrogen filling equipment.

[0010] According to one aspect of the embodiment of the present application, after sending the test signal to the flow device, the method further includes:

[0011] If the feedback signal from the flow device cannot be received, a data transmission failure prompt is sent and / or displayed.

[0012] According to one aspect of an embodiment of the present application, the hydrogen flow rate within a first set time recorded by the flow device as a first hydrogen flow rate includes:

[0013] Divide the first set time into segments to obtain a plurality of time intervals;

[0014] The hydrogen valve is opened to the maximum extent, and the change in the cumulative flow rate of hydrogen within a preset time interval is obtained through the flow device, which is the first hydrogen flow rate.

[0015] According to one aspect of an embodiment of the present application, the step of calculating the hydrogen flow rate within a first set time according to the first hydrogen flow rate as the first hydrogen flow rate includes:

[0016] The ratio between the time span of the preset time interval and the first hydrogen flow rate is calculated as the first hydrogen flow rate.

[0017] According to one aspect of an embodiment of the present application, after calculating the hydrogen flow rate within the first set time according to the first hydrogen flow rate and obtaining the first hydrogen flow rate, the method further includes:

[0018] Obtaining a difference between the first hydrogen flow rate and a maximum hydrogen flow rate as a flow rate error, wherein the maximum hydrogen flow rate is a hydrogen flow rate corresponding to when the hydrogen valve is opened to the maximum extent;

[0019] If the flow rate error is less than or equal to the flow rate error threshold, it is determined that the first hydrogen flow rate is within the preset flow rate range; if the flow rate error is greater than the flow rate error threshold, it is determined that the first hydrogen flow rate is not within the preset flow rate range.

[0020] According to one aspect of an embodiment of the present application, after determining that the first hydrogen flow rate is not within a preset flow rate range, the method further includes:

[0021] If the first hydrogen flow rate is not within the preset flow rate range, a flow device failure prompt is sent and / or displayed.

[0022] According to one aspect of an embodiment of the present application, after the second hydrogen flow rate recorded by the flow acquisition device within the second set time, the method further includes:

[0023] If the second hydrogen flow rate is less than or equal to the flow rate threshold, opening the hydrogen valve to add hydrogen;

[0024] If the second hydrogen flow rate is greater than the flow rate threshold and the second hydrogen flow rate is within the first flow rate interval, the hydrogen valve is opened to add hydrogen, and a valve damage prompt is sent and / or displayed;

[0025] If the second hydrogen flow rate is greater than the flow rate threshold and the second hydrogen flow rate is within a second flow rate interval, a valve defect prompt is sent and / or displayed.

[0026] According to one aspect of the embodiments of the present application, the present application provides a detection device for hydrogen filling equipment, the device comprising:

[0027] a test module configured to send a test signal to the flow device;

[0028] a flow calculation module, configured to control the hydrogen valve to remain open within a first set time if a feedback signal sent by the flow device is received, close the hydrogen valve after the first set time, and use the hydrogen flow passing through the hydrogen valve within the first set time recorded by the flow device as the first hydrogen flow;

[0029] A flow rate calculation module, configured to calculate a first hydrogen flow rate at the hydrogen valve within a first set time according to the first hydrogen flow rate;

[0030] The detection module is configured to obtain a second hydrogen flow recorded by a flow device within a second set time if the first hydrogen flow rate is within a preset flow rate range, and obtain a detection result of the hydrogen filling equipment.

[0031] According to one aspect of an embodiment of the present application, the present application provides a hydrogen filling device, the hydrogen filling device comprising:

[0032] processor;

[0033] A memory having computer-readable instructions stored thereon, wherein when the computer-readable instructions are executed by the processor, any of the above methods is implemented.

[0034] According to one aspect of an embodiment of the present application, the present application provides a computer-readable storage medium having computer-readable instructions stored thereon. When the computer-readable instructions are executed by a processor of a computer, the computer executes any of the methods described above.

[0035] In the embodiment of the present application, a test signal is sent to the flow device to perform a communication test on the flow device.

[0036] If a feedback signal sent by the flow device is received, the hydrogen valve is controlled to remain open within the first set time, and the hydrogen valve is closed after the first set time. The hydrogen flow rate passing through the hydrogen valve within the first set time recorded by the flow device is used as the first hydrogen flow rate. Based on the first hydrogen flow rate, the first hydrogen flow rate at the hydrogen valve within the first set time is calculated to complete the test of the metering function of the flow device.

[0037] If the first hydrogen flow rate is within the preset flow rate range, the second hydrogen flow rate recorded by the flow device within the second set time is obtained, and the detection result of the hydrogen filling equipment is obtained to detect whether the hydrogen valve is damaged.

[0038] In this application, the key components of the hydrogen filling equipment, such as the flow device and the hydrogen valve, are tested separately, that is, the flow device is tested for communication and metering functions, and the hydrogen valve is tested for damage to test whether it leaks material. It is guaranteed that hydrogen trading can be carried out safely and fairly through the hydrogen filling equipment.

[0039] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0040] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and other objects, features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0042] Figure 1 A flow chart of a method for detecting hydrogen filling equipment according to an embodiment of the present application is shown.

[0043] Figure 2 A flow chart of using the hydrogen flow rate within a first set time recorded by a flow device as a first hydrogen flow rate according to an embodiment of the present application is shown.

[0044] Figure 3 A flow chart for determining whether the metering function of a flow device is correct according to an embodiment of the present application is shown.

[0045] Figure 4 A flow chart showing the operation of a hydrogen filling device according to an embodiment of the present application based on the detection results is shown.

[0046] Figure 5 A schematic diagram of a detection device for hydrogen filling equipment according to an embodiment of the present application is shown.

[0047] Figure 6 A hardware structure diagram of a method for detecting hydrogen filling equipment according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0048] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of the present application will be more comprehensive and complete and the concepts of the example embodiments will be fully conveyed to those skilled in the art. The accompanying drawings are only schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0049] In addition, the described features, structures or characteristics may be combined in one or more example embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the example embodiments of the present application. However, those skilled in the art will appreciate that the technical solution of the present application may be practiced while omitting one or more of the specific details, or other methods, components, steps, etc. may be adopted. In other cases, known structures, methods, implementations or operations are not shown or described in detail to avoid obscuring the present application and making the various aspects of the present application obscure.

[0050] Some of the blocks shown in the accompanying drawings are functional entities that do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0051] See also Figure 1 , Figure 1 A flow chart of a method for detecting a hydrogen filling device according to an embodiment of the present application is shown. The present application embodiment provides a method for detecting a hydrogen filling device with implementation steps, including:

[0052] Step S110, sending a test signal to the flow device;

[0053] Step S120, if a feedback signal sent by the flow device is received, the hydrogen valve is controlled to remain open within the first set time, and the hydrogen valve is closed after the first set time, and the hydrogen flow rate within the first set time recorded by the flow device is used as the first hydrogen flow rate;

[0054] Step S130, calculating the hydrogen flow rate within the first set time according to the first hydrogen flow rate, as the first hydrogen flow rate;

[0055] Step S140, if the first hydrogen flow rate is within the preset flow rate range, then obtain the second hydrogen flow rate recorded by the flow device within the second set time to obtain the detection result of the hydrogen filling equipment.

[0056] The above four steps are described in detail below.

[0057] In step S110, a communication test is first performed on the flow device, and a test signal is sent to the flow device. The test signal may be sent to the flow device by wire or by wireless.

[0058] The flow device generates a corresponding feedback signal based on the received test signal and provides feedback. If the feedback signal from the flow device can be received, it means that there is no problem in the communication with the flow device. When the flow device is working, the accumulated hydrogen flow recorded by the flow device can be received. The accumulated hydrogen flow refers to the amount of hydrogen passing through the flow device, that is, the output of hydrogen.

[0059] If the feedback signal from the flow device cannot be received, it means that there is a communication failure with the flow device. Even if the hydrogen filling equipment is put into use, the cumulative flow of hydrogen recorded by the flow device cannot be obtained, and the hydrogen transaction cannot be completed.

[0060] In one embodiment of the present application, if the feedback signal of the flow device cannot be received, a data transmission failure is sent and / or displayed to prompt the user that the flow device has a communication failure. The prompt method can be in the form of text, or in the form of a light with a set color and / or a set frequency, or in the form of a sound with a set frequency and / or a set tone, or in the form of an audio with set content.

[0061] In another embodiment of the present application, after determining that there is no communication failure in the flow device, a read and write test is performed on the flow device, a preset value is written to the flow device, and after a set interval, the displayed value of the flow device is read. If the displayed value is the same as the preset value, it means that there is no problem with the reading and writing function of the flow device. If the displayed value is different from the preset value, it means that there is a problem with the reading and writing function of the flow device.

[0062] If there is a problem with the read / write function of the flow device, a data read / write failure is sent and / or displayed to prompt the user that the flow device has a read / write failure. The prompt may be in the form of text, a light of a set color and / or a set frequency, a sound of a set frequency and / or a set tone, or an audio of a set content.

[0063] In step S120, if a feedback signal sent by the flow device is received, it means that there is no communication failure of the flow device, and the accumulated flow volume of hydrogen recorded by the flow device can be obtained.

[0064] Then, the metering function of the flow device is tested. Specifically, the hydrogen valve is controlled to remain open during the first set time, and the hydrogen valve is closed after the first set time, that is, the hydrogen valve is opened only during the first set time, and the hydrogen valve is closed for the rest of the time. The flow device records the hydrogen flow passing through the hydrogen valve during the first set time as the first hydrogen flow.

[0065] It should be clarified that the first set time is a time interval. In one embodiment of the present application, the first set time can be customized or determined according to a pre-set determination method. For example, when the feedback signal of the flow device is received, the time node of receiving the feedback signal of the flow device is used as the start time node, and the time node obtained by adding the start time node to the set time span is used as the end time node, such as the time node obtained by adding 10 seconds to the start time node as the end time node, that is, the starting time point of the first set time is the "time node of receiving the feedback signal of the flow device", and the end time node of the first set time is the "time node of receiving the feedback signal of the flow device + the set time span".

[0066] It should be noted that in one embodiment of the present application, the first hydrogen flow rate can be calculated by the change in the cumulative flow rate of hydrogen flowing through the flow device. Specifically, the cumulative flow rate of hydrogen recorded by the flow device at the beginning of the first time interval is recorded as the starting flow rate, and the cumulative flow rate of hydrogen recorded by the flow device at the end of the first time interval is recorded as the settlement flow rate. The difference between the starting flow rate and the settlement total amount is calculated as the first hydrogen flow rate.

[0067] See also Figure 2 , Figure 2 The flowchart of using the hydrogen flow rate recorded by the flow device within the first set time as the first hydrogen flow rate according to one embodiment of the present application is shown. The embodiment of the present application provides a step S120 of using the hydrogen flow rate recorded by the flow device within the first set time as the first hydrogen flow rate, including:

[0068] Step S121, segmenting the first set time to obtain a plurality of time intervals;

[0069] Step S122, opening the hydrogen valve to the maximum extent, and obtaining the change in the cumulative flow rate of hydrogen within a preset time interval through a flow device, which is the first hydrogen flow rate.

[0070] The above two steps are described in detail below.

[0071] In step S121, in one embodiment of the present application, when the flow device is working, the change in the cumulative flow of hydrogen is recorded in units of set time intervals, such as seconds, so that the cumulative flow of hydrogen at each moment can be obtained, and then the change in the cumulative flow of hydrogen in each unit time period can be obtained.

[0072] Considering that hydrogen is output when the hydrogen valve is opened, the hydrogen flow rate at this time does not reach the value corresponding to the degree of opening of the hydrogen valve, and it will reach the value corresponding to the degree of opening of the hydrogen valve after a period of time. Therefore, in order to obtain the first hydrogen flow rate more accurately, the first set time interval is first segmented to obtain several time intervals, and the time interval is composed of unit time periods, and the time interval includes one or more unit time periods. The hydrogen flow recorded in the previous time interval is discarded to avoid affecting the accuracy of the first hydrogen flow rate.

[0073] In step S122, among multiple time intervals, the time intervals are sorted according to their timing, and the time interval in the middle of the sorting is selected as the preset time interval. This also avoids the situation where the hydrogen flow rate does not reach the value corresponding to the degree of opening of the hydrogen valve when the hydrogen valve is closed, resulting in low accuracy of the first hydrogen flow rate.

[0074] In step S130, it should be clarified that in one embodiment of the present application, when the flow device is working, the cumulative flow of hydrogen at each moment can be obtained with the set time interval as the unit, and then the change of the cumulative flow of hydrogen in each unit time period can be obtained, that is, the hydrogen flow rate per unit time period.

[0075] Therefore, when calculating the first hydrogen flow rate at the hydrogen valve within the first set time based on the first hydrogen flow rate and the time span of the first set time, the hydrogen flow rate in a certain unit time period can be taken as the first hydrogen flow rate, or the average hydrogen flow rate in multiple unit time periods can be taken as the first hydrogen flow rate.

[0076] If the first hydrogen flow rate is within the preset flow rate range, it means that there is no problem with the flow device and it can work normally. There will be no numerical deviation between the recorded cumulative hydrogen flow and the actual cumulative hydrogen flow, which will lead to unfair hydrogen trading.

[0077] It should be made clear that based on the size of the hydrogen outlet and the pressure difference when the hydrogen is output, there must be a maximum flow rate, that is, the maximum flow rate of hydrogen. In other words, the hydrogen flow rate when the hydrogen is output will not exceed the maximum flow rate of hydrogen.

[0078] Therefore, in one embodiment of the present application, "the minimum flow rate is 0 - the maximum flow rate is the extreme flow rate" is set as the preset flow rate interval. If the first hydrogen flow rate is within the preset flow rate interval, it means that the flow device can work normally. If the first hydrogen flow rate appears outside the preset flow rate interval, it means that the first hydrogen flow rate must be incorrect, that is, the first hydrogen flow rate is either less than 0 or greater than the maximum hydrogen flow rate. In this case, the metering function of the flow device fails.

[0079] See also Figure 3 , Figure 3 A flow chart for determining whether the metering function of a flow device is correct according to an embodiment of the present application is shown. According to a first hydrogen flow rate, the hydrogen flow rate within a first set time is calculated. After the hydrogen flow rate is the first hydrogen flow rate, the embodiment of the present application provides steps for determining whether the metering function of the flow device is correct, including:

[0080] Step S301, obtaining a difference between a first hydrogen flow rate and a maximum hydrogen flow rate as a flow rate error;

[0081] Step S302: if the flow rate error is less than or equal to the flow rate error threshold, it is determined that the first hydrogen flow rate is within the preset flow rate range; if the flow rate error is greater than the flow rate error threshold, it is determined that the first hydrogen flow rate is not within the preset flow rate range.

[0082] The above two steps are described in detail below.

[0083] In step S301, it should be clear that based on the pipeline length, outlet size, and internal and external pressure difference when hydrogen is output, the maximum flow rate of the current hydrogen filling equipment, that is, the maximum hydrogen flow rate, can be calculated. That is, the maximum hydrogen flow rate when hydrogen is output will not exceed the maximum hydrogen flow rate.

[0084] In one embodiment of the present application, the hydrogen valve is opened to the maximum. At this time, if the metering function of the flow device is normal, considering the error caused by the accuracy of the instrument, the first hydrogen flow rate must be similar to the maximum hydrogen flow rate. If they are not similar, it means that the metering function of the flow device is faulty.

[0085] The difference between the first hydrogen flow rate and the extreme hydrogen flow rate is obtained as the flow rate error.

[0086] In step S302, if the flow rate error is less than or equal to the flow rate error threshold, that is, the first hydrogen flow rate is similar to the maximum hydrogen flow rate, then it is determined that the first hydrogen flow rate is within the preset flow rate interval. If the flow rate error is greater than the flow rate error threshold, that is, the first hydrogen flow rate is not similar to the maximum hydrogen flow rate, then it is determined that the first hydrogen flow rate is not within the preset flow rate interval.

[0087] In one embodiment of the present application, the maximum hydrogen flow rate can also be derived from a flow rate test of the current hydrogen filling equipment to obtain the corresponding relationship between the degree of opening of the hydrogen valve and the hydrogen flow rate, that is, different degrees of opening of the hydrogen valve correspond to different hydrogen flow rates.

[0088] In one embodiment of the present application, if the first hydrogen flow rate is not within the preset flow rate range, a metering device failure is sent and / or displayed to remind the user that the metering device has a metering failure. The reminder can be in the form of text, in the form of a light with a set color and / or a set frequency, in the form of a sound with a set frequency and / or a set tone, or in the form of an audio according to the set content.

[0089] In step S140, if the first hydrogen flow rate is within the preset flow rate range, the metering function of the flow device is fine, and the second hydrogen flow recorded by the flow device within the second set time is continuously obtained. Since the flow valve is in a closed state at this time, the second hydrogen flow should be 0. If the second hydrogen flow is greater than 0, it means that hydrogen leakage has occurred in the hydrogen valve. The test result is obtained in this way, and the test result is used to determine whether the hydrogen filling equipment can continue to work.

[0090] It should be clear that in an embodiment of the present application, the second hydrogen flow rate can be used as the detection result, the judgment result of whether the hydrogen valve is leaking according to the second hydrogen flow rate can be used as the detection result, and the judgment result of whether there is a problem with the hydrogen filling equipment can be used as the detection result. This allows the hydrogen filling equipment to perform subsequent transaction processing according to the detection results.

[0091] It should be clarified that the second set time is a time interval. In one embodiment of the present application, the second set time can be determined by user-defined or according to a pre-set determination method. For example, when the second hydrogen flow rate is within the preset flow rate interval, the time node at which the second hydrogen flow rate is determined to be within the preset flow rate interval is the start time node, and the time node obtained by adding the start time node to the set time span is the end time node, such as the time node obtained by adding 10 seconds to the start time node as the end time node, that is, the start time point of the second set time is "the time node at which the second hydrogen flow rate is determined to be within the preset flow rate interval", and the end time node of the second set time is "the time node at which the second hydrogen flow rate is determined to be within the preset flow rate interval + the set time span". It should be clarified that the time span referred to by "set time span" in different embodiments may be different.

[0092] It should be clear that in one embodiment of the present application, the second hydrogen flow rate can be calculated by the change in the cumulative flow rate of hydrogen flowing through the flow device. Specifically, the cumulative flow rate of hydrogen recorded by the flow device at the beginning of the second set time interval is recorded as the starting flow rate, and the cumulative flow rate of hydrogen recorded by the flow device at the end of the second set time interval is recorded as the settlement flow rate. The difference between the starting flow rate and the settlement total amount is calculated as the second hydrogen flow rate.

[0093] See also Figure 4 , Figure 4 A flow chart showing the operation of a hydrogen filling device according to an embodiment of the present application according to the detection result is shown. After obtaining the second hydrogen flow rate recorded by the flow device within the second set time, the embodiment of the present application provides steps for the hydrogen filling device to operate according to the detection result, including:

[0094] Step S401, if the second hydrogen flow rate is less than or equal to the flow rate threshold, then open the hydrogen valve to add hydrogen;

[0095] Step S402: if the second hydrogen flow rate is greater than the flow rate threshold and the second hydrogen flow rate is within the first flow rate interval, the hydrogen valve is opened to add hydrogen, and a valve damage prompt is sent and / or displayed;

[0096] Step S403: If the second hydrogen flow rate is greater than the flow rate threshold and the second hydrogen flow rate is within the second flow rate interval, a valve defect prompt is sent and / or displayed.

[0097] The above three steps are described in detail below.

[0098] In step S401, if the second hydrogen flow rate is equal to 0, it means that the hydrogen valve is absolutely sealed without any leakage. However, considering the error caused by the precision of the instrument, and if the second hydrogen flow rate is small, it will not bring danger to hydrogen filling and will not affect fair trading. Therefore, when the second hydrogen flow rate is less than or equal to the preset flow rate threshold, the hydrogen valve can be opened for hydrogen filling. The flow rate threshold refers to the flow rate that will not bring danger to hydrogen filling and affect fair trading.

[0099] In step S402, if the second hydrogen flow rate is greater than the flow rate threshold and the second hydrogen flow rate is within the first flow rate interval, it means that in this case, the second hydrogen flow rate value is relatively large and the hydrogen valve needs to be replaced, but it can still be used temporarily, so the hydrogen valve continues to be opened for hydrogen filling, but a valve damage prompt needs to be sent and / or displayed to prompt the user to replace the hydrogen valve. The minimum value of the first flow rate interval is greater than the flow rate threshold;

[0100] In one embodiment of the present application, if the second hydrogen flow rate is greater than the flow rate threshold and the second hydrogen flow rate is within the first flow rate interval, a data transmission interruption prompt is sent and / or displayed to remind the user that the hydrogen valve is damaged. The reminder can be in the form of text, in the form of a light with a set color and / or a set frequency, in the form of a sound with a set frequency and / or a set tone, or in the form of an audio according to the set content.

[0101] In step S403, if the second hydrogen flow rate is greater than the flow rate threshold and the second hydrogen flow rate is within the second flow rate interval, it means that in this case, the second hydrogen flow rate value is very large, the hydrogen valve needs to be replaced, and the hydrogen filling equipment can no longer be used. A valve defect prompt is sent and / or displayed to prompt the user to replace the hydrogen valve immediately. The minimum value of the second flow rate interval is greater than the maximum value of the first flow rate interval.

[0102] In one embodiment of the present application, if the second hydrogen flow rate is greater than the flow rate threshold and the second hydrogen flow rate is within the second flow rate interval, a data transmission interruption prompt is sent and / or displayed to remind the user that the hydrogen valve is defective. The reminder can be in the form of text, in the form of a light with a set color and / or a set frequency, in the form of a sound with a set frequency and / or a set tone, or in the form of an audio according to the set content.

[0103] See also Figure 5 , Figure 5 A schematic diagram of a detection device for hydrogen filling equipment according to an embodiment of the present application is shown.

[0104] A test module 510, configured to send a test signal to a flow device, the flow device is used to measure the flow of hydrogen passing through the hydrogen valve;

[0105] The flow calculation module 520 is configured to control the hydrogen valve to remain open within a first set time if a feedback signal sent by the flow device is received, close the hydrogen valve after the first set time, and use the hydrogen flow passing through the hydrogen valve within the first set time recorded by the flow device as the first hydrogen flow;

[0106] A flow rate calculation module 530, configured to calculate a first hydrogen flow rate at a hydrogen valve within a first set time according to a first hydrogen flow rate;

[0107] The detection module 540 is configured to obtain a second hydrogen flow rate recorded by the flow device within a second set time if the first hydrogen flow rate is within a preset flow rate range, and obtain a detection result of the hydrogen filling equipment.

[0108] In another embodiment of the present application, when it is determined that the hydrogen valve is not damaged, the corresponding hydrogen flow rate can also be determined according to the opening degree of the hydrogen valve, and the corresponding preset flow rate interval can be generated.

[0109] The preset flow rate range of hydrogen can be derived from the flow rate test of the current hydrogen filling equipment to obtain the corresponding relationship between the opening degree of the hydrogen valve and the hydrogen flow rate, that is, different opening degrees of the hydrogen valve correspond to different hydrogen flow rate ranges.

[0110] According to the degree of opening of the hydrogen valve, the corresponding hydrogen flow rate is determined, the real-time hydrogen flow rate recorded by the flow device is obtained, and the difference between the corresponding hydrogen flow rate and the real-time hydrogen flow rate is calculated. If the difference is less than or equal to the flow rate error threshold, it is determined that the first hydrogen flow rate is within the preset flow rate range, that is, there is no problem with the metering function of the flow device, and hydrogen can be added. If the difference is greater than the flow rate error threshold, it is determined that the first hydrogen flow rate is not within the preset flow rate range, that is, there is a large error in the metering accuracy of the flow device. Since only the accuracy of the flow device has problems, hydrogen can be temporarily added, but a prompt of poor accuracy of the flow device needs to be displayed and / or sent to the user so that the user can calibrate, repair or replace the flow device.

[0111] It should be made clear that the preset flow rate range corresponding to the current opening degree of the hydrogen valve is calculated based on the degree of damage of the hydrogen valve and the hydrogen flow rate corresponding to the valve opening degree. For example, if the opening degree of the hydrogen valve is 50%, the corresponding flow rate range is 2.5 liters / second to 3.2 liters / second. It should be made clear that when designing the flow rate range, various influencing factors are fully considered. Therefore, the opening degree of the hydrogen valve corresponds not to a fixed flow rate, but to a flow rate range.

[0112] According to the second hydrogen flow rate, the second hydrogen flow rate corresponding to the hydrogen valve, that is, the flow rate of hydrogen leakage, is obtained. The second hydrogen flow rate is added to the corresponding flow rate interval to obtain a preset flow rate interval. For example, if the second hydrogen flow rate is 0.01 liters / second, the preset flow rate interval is 2.51 liters / second to 3.21 liters / second when added to the corresponding flow rate interval.

[0113] If the first hydrogen flow rate is outside the preset flow rate range, it means that the first hydrogen flow rate is incorrect, that is, there is a problem with the accuracy of the flow device. By further testing the metering function of the flow device in this way, it is possible to quickly and accurately know whether there is an error in the accuracy of the flow device.

[0114] The detection method of the hydrogen filling equipment in the embodiment of the present application can be performed by Figure 6 The hardware device shown is implemented. Figure 6 To describe the hardware device according to the embodiment of the present application. Figure 6The hardware device shown is only an example and should not bring any limitation to the functions and scope of application of the embodiments of the present application.

[0115] like Figure 6 As shown, the hardware device may be in the form of a general computing device. The components of the hardware device may include, but are not limited to: at least one processing unit 810, at least one storage unit 820, and a bus 830 connecting different system components (including the storage unit 820 and the processing unit 810).

[0116] The storage unit stores program codes, which can be executed by the processing unit 810, so that the processing unit 810 performs the steps according to various exemplary embodiments of the present invention described in the description of the exemplary method described above in this specification. For example, the processing unit 810 can perform the following steps: Figure 3 The steps shown in .

[0117] The storage unit 820 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 8201 and / or a cache memory unit 8202 , and may further include a read-only memory unit (ROM) 8203 .

[0118] The storage unit 820 may also include a program / utility 8204 having a set (at least one) of program modules 8205, such program modules 8205 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0119] Bus 830 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0120] The hardware device may also communicate with one or more external devices 700 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), may communicate with one or more devices that enable a user to interact with the hardware device, and / or may communicate with any device that enables the hardware device to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed through an input / output (I / O) interface 850. Furthermore, the hardware device may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 860. As shown, the network adapter 860 communicates with other modules of the hydrogen refueling device through a bus 830. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the hardware device, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0121] Through the description of the above implementation methods, it is easy for those skilled in the art to understand that the example implementation methods described here can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the implementation methods of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the implementation methods of the present application.

[0122] In an exemplary embodiment of the present application, a computer program medium is further provided, on which computer-readable instructions are stored. When the computer-readable instructions are executed by a processor of a computer, the computer is enabled to execute the method described in the above method embodiment.

[0123] According to one embodiment of the present application, a program product for implementing the method in the above method embodiment is also provided, which can adopt a portable compact disk read-only memory (CD-ROM) and include program code, and can be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited to this. In this document, a readable storage medium can be any tangible medium containing or storing a program, which can be used by or in combination with an instruction execution system, an apparatus or a device.

[0124] The program product may use any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0125] Computer readable signal media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Readable signal media may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0126] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0127] Program code for performing the operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., through the Internet using an Internet service provider).

[0128] It should be noted that, although several modules or units of the equipment for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into being embodied by multiple modules or units.

[0129] In addition, although the steps of the method in the present application are described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0130] Through the description of the above implementation methods, it is easy for those skilled in the art to understand that the example implementation methods described here can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the implementation methods of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the implementation methods of the present application.

[0131] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the inventions applied for herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that the present application does not apply for. The specification and embodiments are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the appended claims.

Claims

1. A method for detecting hydrogen filling equipment, characterized in that: The method comprises: sending a test signal to a flow device, the flow device being used to measure the flow of hydrogen passing through the hydrogen valve; If a feedback signal sent by the flow device is received, the preset value is written into the flow device, and the value displayed by the flow device is read; If the displayed value is the same as the preset value, the hydrogen valve is controlled to remain open to the maximum extent within the first set time, and the hydrogen valve is closed after the first set time, and the hydrogen flow rate within the first set time recorded by the flow device is used as the first hydrogen flow rate; Calculate the hydrogen flow rate within a first set time according to the first hydrogen flow rate as the first hydrogen flow rate; Obtaining a difference between the first hydrogen flow rate and a maximum hydrogen flow rate as a flow rate error, wherein the maximum hydrogen flow rate is a hydrogen flow rate corresponding to when the hydrogen valve is opened to the maximum extent; If the flow rate error is less than or equal to the flow rate error threshold, obtaining a second hydrogen flow rate recorded by the flow device within a second set time; The state of the hydrogen valve is determined according to the second hydrogen flow rate. If the hydrogen valve is normal or damaged, the valve continues to be used. If the valve is damaged, the valve is refused to be used and a replacement is prompted.

2. The method according to claim 1, characterized in that After sending the test signal to the flow device, the method further includes: If the feedback signal from the flow device cannot be received, a data transmission failure prompt is sent and / or displayed.

3. The method according to claim 1, characterized in that: The step of taking the hydrogen flow rate within the first set time recorded by the flow device as the first hydrogen flow rate comprises: Divide the first set time into segments to obtain a plurality of time intervals; The hydrogen valve is opened to the maximum extent, and the change in the cumulative flow rate of hydrogen within a preset time interval is obtained through the flow device, which is the first hydrogen flow rate.

4. The method according to claim 3, characterized in that: The step of calculating the hydrogen flow rate within the first set time according to the first hydrogen flow rate as the first hydrogen flow rate includes: The ratio between the time span of the preset time interval and the first hydrogen flow rate is calculated as the first hydrogen flow rate.

5. The method according to claim 3, characterized in that: After calculating the hydrogen flow rate within the first set time according to the first hydrogen flow rate and obtaining the first hydrogen flow rate, the method further comprises: Obtaining a difference between the first hydrogen flow rate and a maximum hydrogen flow rate as a flow rate error, wherein the maximum hydrogen flow rate is a hydrogen flow rate corresponding to when the hydrogen valve is opened to the maximum extent; If the flow rate error is greater than the flow rate error threshold, it is determined that the first hydrogen flow rate is not within a preset flow rate range.

6. The method according to claim 5, characterized in that After determining that the first hydrogen flow rate is not within a preset flow rate range, the method further includes: If the first hydrogen flow rate is not within the preset flow rate range, a flow device failure prompt is sent and / or displayed.

7. The method according to claim 1, characterized in that After obtaining the second hydrogen flow recorded by the flow device within the second set time, the method further includes: If the second hydrogen flow rate is less than or equal to the flow rate threshold, opening the hydrogen valve to add hydrogen; If the second hydrogen flow rate is greater than the flow rate threshold and the second hydrogen flow rate is within the first flow rate interval, the hydrogen valve is opened to add hydrogen, and a valve damage prompt is sent and / or displayed; If the second hydrogen flow rate is greater than the flow rate threshold and the second hydrogen flow rate is within a second flow rate interval, a valve defect prompt is sent and / or displayed.

8. A detection device for hydrogen filling equipment, characterized in that: The device comprises: a test module configured to send a test signal to a flow device, wherein the flow device is used to measure the flow of hydrogen passing through the hydrogen valve; The flow calculation module is configured to write a preset value into the flow device and read a displayed value of the flow device if a feedback signal sent by the flow device is received; if the displayed value is the same as the preset value, control the hydrogen valve to remain open to the maximum extent within a first set time, close the hydrogen valve after the first set time, and use the hydrogen flow within the first set time recorded by the flow device as the first hydrogen flow; A flow rate calculation module, configured to calculate a first hydrogen flow rate at the hydrogen valve within a first set time according to the first hydrogen flow rate; The detection module is configured to obtain the difference between the first hydrogen flow rate and the maximum hydrogen flow rate as a flow rate error, wherein the maximum hydrogen flow rate is the hydrogen flow rate corresponding to when the hydrogen valve is opened to the maximum extent; if the flow rate error is less than or equal to a flow rate error threshold, obtain a second hydrogen flow recorded by a flow device within a second set time; determine the state of the hydrogen valve according to the second hydrogen flow, continue to use the hydrogen valve if it is normal or damaged, and refuse to use the valve and remind to replace it if the valve is damaged.

9. A hydrogen filling device, characterized in that: The hydrogen filling equipment comprises: processor; A memory having computer-readable instructions stored thereon, wherein when the computer-readable instructions are executed by the processor, the method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that: Computer-readable instructions are stored thereon, and when the computer-readable instructions are executed by a processor of a computer, the computer is caused to execute the method according to any one of claims 1 to 7.

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