CN117571047A - Detection system and detection method of hydrogen supply system - Google Patents

Abstract

The application relates to a detection system and a detection method of a hydrogen supply system, and belongs to the technical field of new energy. The detection system of the hydrogen supply system comprises a controller, a bus communication card and an upper computer; the controller is connected with the upper computer through a bus communication card; the controller is configured to be respectively in communication connection with the detection device and the execution device which are arranged in the hydrogen supply system, receives a detection instruction issued by the upper computer through the bus communication card, returns a detection result containing the acquisition result of the detection device to the upper computer according to the detection instruction, or controls the execution device to operate according to the detection instruction, generates the detection result according to the operation result, and sends the detection result to the upper computer to realize the detection of the hydrogen supply system. The detection of the hydrogen supply system does not need to measure the parameters corresponding to each detection item one by one from the site where the hydrogen supply system is located, so that the artificial dependency degree of the detection process is reduced, and meanwhile, the detection accuracy and the real-time performance are high, and the detection speed is high.

Description

Detection system and detection method of hydrogen supply system

Technical Field

The application relates to the technical field of new energy, in particular to a detection system and a detection method of a hydrogen supply system.

Background

The hydrogen energy is used as a new energy source, has very wide application market, such as being used as a standby power supply, being applied to a distributed power station, providing energy for various vehicles and the like, at present, the most widely applied direction of hydrogen energy is to replace traditional fuel oil on automobiles, and the hydrogen combustion converts chemical energy into kinetic energy for driving the automobiles to move, so that the automobile has zero carbon emission, is green and pollution-free, and can obviously reduce the damage to the environment. The supply of hydrogen energy on an automobile depends on a hydrogen supply system, and whether the hydrogen supply system can safely and reliably work not only affects the performance of the automobile, but also is related to the life safety of the driver, so that in the production process of the hydrogen supply system, the strict control on the performance index of the hydrogen supply system is very important.

At present, in the production process of a hydrogen supply system, detection work is often realized manually by using instruments and meters and various traditional testing means, for example: manually reading and recording pressure gauge data; measuring a resistance value by using a universal meter, and then inquiring a resistance value-temperature comparison table to determine the working temperature of the hydrogen supply system; the leak position of the hydrogen supply system is detected by a soap bubble method, or the air tightness of the hydrogen supply system is detected by a soaking method. The detection means have the defects of strong manual dependence and multiple manual detection posts, and the accuracy and the detection efficiency of the detection result are not high.

Disclosure of Invention

In order to improve the detection accuracy and the detection efficiency of the hydrogen supply system and reduce the dependence on manual detection, the application provides a detection system and a detection method of the hydrogen supply system.

In a first aspect, the present application provides a detection system including a controller, a bus communication card, and an upper computer;

the controller is in communication connection with the upper computer through the bus communication card; the controller is configured to be in communication with a detection device and an execution device disposed in the hydrogen supply system; the upper computer is configured to send a detection instruction to the controller through the bus communication card; the controller is configured to generate a detection result for the detection instruction according to the detection instruction and the acquisition result of the detection device, or control the operation of the execution device according to the detection instruction, and generate the detection result corresponding to the detection instruction according to the operation result of the execution device; the controller is also configured to transmit to the host computer through the bus communication card.

Through adopting above-mentioned technical scheme, with the detection device in the hydrogen supply system, the executive device respectively with controller communication connection, and realize the communication connection of controller and host computer through the bus communication card, when detecting a hydrogen supply system like this, the controller can receive the detection instruction that the host computer was issued through the bus communication card, return the testing result that contains the detection device acquisition result according to the detection instruction to the host computer, or according to the operation of detection instruction control executive device, and according to the operation result generation testing result of executive device, send the testing result to the host computer, let the host computer side know the condition of hydrogen supply system, realize the detection to the hydrogen supply system. Based on the detection system, the parameters corresponding to each detection item are measured one by one without manually detecting the hydrogen supply system to the site where the hydrogen supply system is located, so that the manual dependency degree of the detection process is reduced, and the labor cost of the hydrogen supply system detection is reduced; meanwhile, the upper computer collects the acquisition result of the detection device and the operation result of the execution device through the controller, the detection accuracy and the real-time performance are high, the detection speed is higher, the production efficiency can be improved, and the reliability of the detection result can be enhanced.

Optionally, the detection device includes at least one of a temperature sensor, a pressure sensor, a hydrogen concentration sensor, and a flow meter; the execution device comprises a pipeline electromagnetic valve and a bottle valve.

Optionally, the bus communication card comprises a controller area network (Controller Area Network, CAN) bus communication card.

Through adopting above-mentioned technical scheme, adopt CAN bus communication card to communicate between host computer and the controller, CAN bus communication card CAN provide serial data communication between host computer and the controller, and its transmission rate CAN be up to 1Mb/s, and CAN bus communication card has addressing ability and error detection ability of 11 bits simultaneously. And the CAN protocol used by the CAN bus communication card has high robustness, stability and reliability.

Optionally, the detection system further includes a display, where the display is in communication connection with the upper computer, and a display area of the display is larger than a display area of a screen in the upper computer.

By adopting the technical scheme, the detection system further comprises a display which is in communication connection with the upper computer, and the display area of the display is larger than that of a screen in the upper computer, so that compared with the screen of the upper computer, the display belongs to a large screen, and the upper computer can transmit display contents such as detection results to the display for large screen display, thereby being more convenient for detection personnel to watch.

Optionally, the detection system further comprises a data transmission unit (Data Transfer unit, DTU) in communicative connection with the controller, the data transmission unit being configured to transmit the detection result to a server.

Through adopting above-mentioned technical scheme, detecting system still communicates with the server through data transmission unit, consequently after the controller obtains the testing result, can transmit to the server according to the testing result through data transmission unit, just so, can realize the sharing to the hydrogen supply system testing result through the server to and realize the persistence storage to the testing result, be convenient for follow-up retrospectively of testing result.

In a second aspect, the present application provides a method for detecting a hydrogen supply system, applied to the detection system described in any one of the foregoing, the method comprising:

the upper computer receives a detection instruction for a target detection item, wherein the target detection item is one of a plurality of detection items for the hydrogen supply system;

the upper computer sends a detection instruction to the controller according to the detection instruction;

the upper computer receives a detection result returned by the controller according to the detection instruction, wherein the detection result comprises a collection result of the detection device, or the detection result is generated based on a working result of the execution device after the controller controls the execution device to work according to the detection instruction;

and the upper computer displays the detection result.

Through adopting above-mentioned technical scheme, with the detection device in the hydrogen supply system, the executive device respectively with controller communication connection, and realize the communication connection of controller and host computer through the bus communication card, when detecting a hydrogen supply system like this, the controller can receive the detection instruction that the host computer was issued through the bus communication card, return the testing result that contains the detection device acquisition result according to the detection instruction to the host computer, or be according to the operation of detection instruction control executive device, and produce the testing result according to the operation result of executive device, send the testing result to the host computer, let the host computer side know the condition of hydrogen supply system, realize the detection to the hydrogen supply system. Based on the detection system, the parameters corresponding to each detection item are measured one by one without manually detecting the hydrogen supply system to the site where the hydrogen supply system is located, so that the manual dependency degree of the detection process is reduced, and the labor cost of the hydrogen supply system detection is reduced; meanwhile, the upper computer collects the acquisition result of the detection device and the operation result of the execution device through the controller, the detection accuracy and the real-time performance are high, the detection speed is higher, the production efficiency can be improved, and the reliability of the detection result can be enhanced.

Optionally, the detection items include a temperature detection item, a pressure detection item, a concentration detection item, a flow detection item, and a valve control response detection item; the detection device corresponding to the temperature detection item is a temperature sensor, the detection device corresponding to the pressure detection item is a pressure sensor, the detection device corresponding to the concentration detection item is a hydrogen concentration sensor, the detection device corresponding to the flow detection item is a flow meter, and the execution device corresponding to the valve control response detection item is at least one of a pipeline electromagnetic valve and a bottle valve.

Optionally, before the upper computer receives the detection instruction for the target detection item, the detection method further includes:

the upper computer receives a real-time analysis instruction;

the upper computer shows a real-time analysis interface of the target detection item according to the real-time analysis instruction, wherein the real-time analysis interface comprises a starting function control;

the upper computer receiving the detection instruction for the target detection item comprises the following steps: the upper computer detects the detection indication issued by operating the starting function control;

the upper computer displaying the detection result comprises the following steps: and the upper computer graphically displays the detection result obtained in real time in the real-time analysis interface.

Through the technical scheme, the detection personnel can start the functional control in the real-time analysis interface to issue the detection instruction to the upper computer, and after the upper computer obtains the detection result corresponding to the detection instruction, the detection result can be graphically displayed, so that the detection result aiming at the hydrogen supply system is more intuitively presented to the detection personnel, and the human-computer interaction friendliness of the detection system is improved.

Optionally, the real-time analysis interface further comprises an item selection function control; after the upper computer shows the real-time analysis interface of the target detection item according to the real-time analysis instruction, the detection method further comprises the following steps:

the upper computer detects a switching instruction issued by operating the item selection function control;

and displaying a real-time analysis interface of the new target detection item according to the switching instruction.

Optionally, the detection system includes a data transmission unit communicatively connected to the controller, and after the upper computer sends a detection instruction to the controller according to the detection instruction, the detection method further includes:

the controller controls the data transmission unit to send the detection result to a server so that the server can store the detection result.

Through the technical scheme, after the controller obtains the detection result corresponding to at least one of the detection device and the execution device, the detection result can be transmitted to the server through the data transmission unit, so that the sharing of the detection result of the hydrogen supply system can be realized through the server, the lasting storage of the detection result is realized, and the follow-up tracing of the quality inspection result is facilitated.

In summary, the present application at least includes the following beneficial technical effects:

1. the hydrogen supply system is detected by the detection system, so that the artificial dependency degree in the detection process is reduced, and the labor cost of the hydrogen supply system is reduced;

2. the upper computer collects the operation results of the detection device and the execution device through the controller, the detection accuracy and the real-time performance are high, the detection speed is high, the production efficiency can be improved, and the reliability of the detection result can be enhanced.

Drawings

FIG. 1 is a schematic diagram of a hydrogen supply system shown in an embodiment of the present application;

FIG. 2 is a schematic diagram of a detection system according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an interaction flow between an upper computer and a controller in the detection method provided in the embodiments of the present application;

fig. 4 is an interactive interface diagram of an upper computer provided in an embodiment of the present application;

fig. 5 is another interactive interface diagram of the upper computer provided in the embodiment of the present application;

fig. 6 is a diagram of another interaction interface of the upper computer provided in the embodiment of the present application;

FIG. 7 is another system schematic diagram of a detection system provided in an embodiment of the present application;

FIG. 8 is a schematic diagram of yet another system of detection systems provided in embodiments of the present application;

FIG. 9 is a schematic diagram of yet another system of the detection system provided in an embodiment of the present application;

fig. 10 is a schematic hardware structure of an upper computer according to an embodiment of the present application.

Reference numerals illustrate:

1-a hydrogen supply system; 111-a hydrogen storage cylinder; 112-a bottle valve; 121-hydrogenation port; 122-a one-way valve; 123-high pressure gauge; 131-a filter; 132-a pressure relief valve; 133-unloading valve; 134-manual needle valve; 135-pipeline solenoid valve; 141-a flow meter; 142-high pressure sensor; 143-a medium pressure sensor; 2-a detection system; 20-a controller; 30-a bus communication card; 40-an upper computer; 41-a processor; 42-memory; a 43-communication bus; 51-a detection device; 52-an executive device; 501-starting a function control; 502-item selection functionality control; 503-stop functionality control; a 60-display; 70-DTU; 80-a server; 91-CAN bus communication card.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In order to solve the problems of inconvenient detection of the hydrogen supply system, high manual dependency, and low detection accuracy and efficiency in the related art, the present embodiment provides a detection system of the hydrogen supply system, and in order to facilitate understanding of the structure and advantages of the detection system by those skilled in the art, the present embodiment first describes a typical structure of the hydrogen supply system 1 with reference to fig. 1:

in the hydrogen supply system 1, the functions of the respective components can be generally divided into such parts: the device comprises a hydrogen storage module, a hydrogenation module and a pressure regulating module.

The hydrogen storage module comprises hydrogen storage cylinders 111 formed by high-pressure composite materials, connecting pipelines and the like, wherein a bottle valve 112 is arranged at the bottle mouth of each hydrogen storage cylinder 111, and the hydrogen storage cylinders 111 are connected in parallel through the connecting pipelines. The cylinder valve 112 has a solenoid valve function, and it also supports manual switching. In some examples of this embodiment, the hydrogen storage module further includes a cylinder support and a Thermal Plug (TPRD) disposed at the tail of each hydrogen storage cylinder 111, where the thermal plug is a temperature-driven safety pressure relief device, that is, a thermal pressure relief device, and is activated when the temperature of the environment inside or outside the cylinder reaches 110±5 ℃, so as to prevent accidents such as explosion caused by overheat and overpressure of hydrogen in the hydrogen storage cylinder 111. The hotplug is generally built in with a glass bulb or fusible alloy. The working principle of the hot melting bolt using glass bubbles is as follows: when the excitation temperature is reached, the glass bubbles break and the gas pressure in the bottle can drop to zero rapidly. The working principle of the hot melting bolt using the fusible alloy is as follows: when the excitation temperature is reached, the fusible alloy melts, releasing the hydrogen in the bottle, and realizing the pressure release of the hydrogen storage bottle 111.

The hydrogenation module comprises a hydrogenation port 121, a one-way valve 122 and a high-pressure gauge 123, and the hydrogenation port 121 can be integrated with functional components such as a filter device. The hydrogenation module can also integrate a high-pressure exhaust valve according to the requirement, wherein the high-pressure exhaust valve is used for replacing hydrogen in the hydrogen storage cylinder 111 and actively discharging high-pressure hydrogen in the hydrogen storage cylinder 111 during vehicle maintenance.

The pressure regulating module comprises a filter 131, a pressure reducing valve 132, an unloading valve 133, a manual needle valve 134, a pipeline electromagnetic valve 135 and other components. Wherein the pressure reducing valve 132 is used to adjust the pressure of the hydrogen gas to the pressure required by the fuel cell. When an abnormal situation occurs, the residual hydrogen in the hydrogen storage cylinder 111 can be safely discharged in linkage with the manual needle valve 134 or the like. The unloading valve 133 is used to discharge the overpressure hydrogen gas through the discharge port when the relief valve 132 fails in locking, resulting in an overpressure of the outlet pressure. In normal hydrogen supply to the stack, the line solenoid valve 135 is opened, and hydrogen gas flows from one side of the line solenoid valve 135 to the other side; when the hydrogen storage cylinder 111 is inflated, the pipeline electromagnetic valve 135 is closed, so that hydrogen can be effectively prevented from entering the electric pile. As will be appreciated by those skilled in the art, the combination valve included in the pressure regulating module may further include components other than those described above, such as a restrictor valve, etc., and the positions of some of the components in fig. 1 may be adjusted.

For the purpose of ensuring the safety, stability and reliability of the hydrogen supply system 1, the hydrogen supply system 1 generally further includes a detection module including various detection devices 51, such as at least one of a temperature sensor (not shown in fig. 1), a pressure sensor, a flow meter 141, a hydrogen concentration sensor (not shown in fig. 1), etc., where the temperature sensor may be disposed in a space where the hydrogen supply system 1 is located, or may be disposed on the cylinder valve 112, such as on a side of the cylinder valve 112 facing the inside of the hydrogen storage cylinder 111, and the temperature sensor disposed in the space where the hydrogen supply system 1 is located may monitor an ambient temperature at which the hydrogen supply system 1 is operated, and the temperature sensor disposed on the cylinder valve 112 may monitor a temperature in the cylinder of the hydrogen storage cylinder 111, it being understood that the temperature sensor monitors a temperature, in fact, may detect a situation where explosion of the hydrogen storage cylinder 111 may occur. A flow meter 141 is typically provided on the piping near the stack for monitoring the flow of hydrogen supply. The pressure sensors may include a high pressure sensor 142 and a medium pressure sensor 143 for monitoring the air pressure in the pipeline.

The following describes the detection system 2 of the hydrogen supply system 1 with reference to fig. 2, and please refer to a system schematic diagram of the detection system 2 shown in fig. 2:

the detection system 2 of the hydrogen supply system 1 comprises a controller 20, a bus communication card 30 and an upper computer 40, wherein the controller 20 is in communication connection with the upper computer 40 through the bus communication card 30.

The upper computer (or host computer or master computer) 40 is a computer that can directly issue a control command, and the lower computer (lower computer or slave computer) is generally a programmable logic controller (Programmable Logic Controller, PLC) or a single chip microcomputer, and in this embodiment, the controller 20 is the lower computer of the upper computer 40. The host computer 40 generally has a man-machine interface, and is capable of inputting information to a user and outputting information to the user. For example, the host computer 40 is a desktop computer or a notebook computer, and has input means such as a keyboard and a mouse, and output means such as a display screen and a speaker.

The controller 20 is configured to be communicatively connected to a detection device 51 and an execution device 52 disposed in the hydrogen supply system 1, respectively, where the detection device 51 is configured to detect various indicators of the hydrogen supply system 1. In some examples of the present embodiment, all or part of the detection devices 51 belong to the hydrogen supply system 1; in other examples of the present embodiment, all or part of the detection devices 51 belong to the detection system 2 itself, for example, the hydrogen supply system 1 itself does not contain these detection devices 51, and the detection system 2 itself carries part of the detection devices 51 for the purpose of monitoring the hydrogen supply system 1 comprehensively, but these detection devices 51 also need to be disposed in the space where the hydrogen supply system 1 is located or disposed in the hydrogen supply system 1. The actuator 52 is used to control the on-off of the hydrogen flow path in the hydrogen supply system 1 according to the instruction, so the actuator 52 includes a line solenoid valve 135, a bottle valve 112, and the like.

The bus communication card 30 CAN be a CAN bus communication card, which is realized based on a controller area network, is a serial communication network capable of effectively supporting distributed control and real-time control, and has good robustness. In other examples of the present embodiment, the bus communication card 30 may be of other types, such as FlexRay (a new communication standard commonly established by companies such as bma, philips, flimsy karl He Boshi), local connection network (Local Interconnect Network, LIN) bus communication card, or media-oriented system transmission (Media Oriented System Transport, MOST) bus communication card.

The following describes the detection process of the hydrogen supply system 1 by the detection system 2 with reference to fig. 3:

s302: the upper computer receives a detection instruction for the target detection item.

The host computer 40 may receive the detection instruction issued by the detection personnel through its own input unit, and it is understood that there are a plurality of detection items for the hydrogen supply system 1, for example, a pressure detection item, a temperature detection item, a hydrogen concentration detection item, a flow rate detection item, a valve control response detection item, and the like. Upon receiving the detection instruction, the host computer 40 needs to determine which target detection item the detection instruction corresponds to.

It should be noted that, the "inspector" in the present embodiment is not limited to the worker whose job is to inspect the hydrogen supply system 1, and may be any person having a function of inspecting the hydrogen supply system 1.

In some examples of this embodiment, after the upper computer 40 starts and runs the detection program, the inspector may issue a real-time analysis instruction to the upper computer 40 first, and after the upper computer 40 receives the real-time analysis instruction, a real-time analysis interface of the target detection item is shown according to the real-time analysis instruction. In some examples of this embodiment, each test item has a real-time analysis interface corresponding thereto, as shown in fig. 4 and 5, respectively, for the pressure test item and the temperature test item. In some examples, when the inspector issues a real-time analysis instruction to the host computer 40, a real-time analysis interface indicating which inspection item needs to be displayed to the host computer 40, that is, indicating to the host computer 40 which target inspection item is. In another example, because the number of detection items for the hydrogen supply system 1 is limited, for example, in one example, the detection system 2 only supports detection of five detection items for the hydrogen supply system 1, in which case the host computer 40 may save priorities for the detection items, the detection personnel may issue a real-time analysis instruction without instructing the corresponding target detection item, and the host computer 40 may select the target detection items in order according to the saved priorities of the detection items and display a real-time analysis interface for the target detection items. The real-time analysis interface includes a start function control 501, and a detection personnel can issue a detection instruction for a target detection item to the upper computer 40 by operating the start function control 501.

In some examples of this embodiment, the real-time analysis interface further includes an item selection function control 502, for example, in fig. 4, the item selection function control 502 is displayed in the lower left corner of the real-time analysis interface, in fig. 4, the item selection function control 502 corresponding to all the detection items except the target detection item is shown in the real-time analysis interface, in other words, in the real-time analysis interface corresponding to the target detection item, each other detection item has an item selection function control 502 corresponding to the target detection item, so the number of item selection function controls 502 shown in the real-time analysis interface is N-1, where N is the total number of detection items. In other examples, where the host computer 40 pre-stores priorities of the detection items, only two item selection functionality controls 502 may be shown in the real-time analysis cross section of the target detection item, where the functionality of the two item selection functionality controls 502 is "switch to the previous detection item" and "switch to the next detection item", respectively, as shown in fig. 5. The detection personnel can switch the target detection items by operating the item selection function control 502, and after the detection personnel operates the item selection function control 502, the upper computer 40 responds to the operation to show a real-time analysis interface corresponding to the new target detection item.

S304: and the upper computer sends a detection instruction to the controller according to the detection instruction.

After the upper computer 40 detects the detection instruction, it may send a detection instruction to the controller 20, where the detection instruction may indicate to the controller 20 whether the device corresponding to the detection instruction is the executing device 52 or the detecting device 51, and specifically which device or devices. If the current target detection item is a temperature detection item, the corresponding detection device 51 is a temperature sensor, if the current target detection item is a pressure detection item, the corresponding detection device 51 is a pressure sensor, if the current target detection item is a concentration detection item, the corresponding detection device 51 is a hydrogen concentration sensor, if the current target detection item is a flow rate detection item, the corresponding detection device 51 is a flow meter 141, and if the current target detection item is a valve control response detection item, the corresponding execution device 52 may be at least one of the line solenoid valve 135 and the bottle valve 112.

S306: the controller generates a detection result corresponding to the detection instruction according to the detection instruction.

After receiving the detection instruction, the controller 20 may generate a detection result according to the detection instruction. For example, if the detection command indicates to open a certain pipeline electromagnetic valve 135 in the hydrogen supply system 1 or close a certain bottle valve 112 in the hydrogen supply system 1, the controller 20 needs to perform on-off control on the corresponding pipeline electromagnetic valve 135 or bottle valve 112 according to the detection command, and determines the response condition of the corresponding valve to the control command, that is, determines whether the pipeline electromagnetic valve 135 or bottle valve 112 is normally opened or closed according to the control command, so as to form a detection result of the corresponding valve. For another example, the detection instruction indicates that the acquisition result of a certain detection device 51 is acquired, and the controller 20 may generate the detection result according to the acquisition result of the corresponding detection device 51. It will be appreciated that the signal collection will be performed after the detection device 51 is powered up, but the controller 20 will not collect and store the collection results, and the controller 20 will store and upload the collection results of the detection device 51 only after receiving the detection command, so those skilled in the art will appreciate that in some situations the detection device 51 is not activated according to the control command of the controller 20.

S308: the controller returns a detection result corresponding to the detection instruction to the upper computer.

After the controller 20 acquires the operation result for the detection instruction, the detection generated according to the operation result may be transmitted to the host computer 40 through the bus communication card 30.

S310: and the upper computer displays the detection result.

After receiving the detection result, the host computer 40 may output the detection result. In general, the upper computer 40 outputs the detection result in a display manner. For example, the host computer 40 may display the detection result in a real-time analysis interface corresponding to the target detection item. In some examples, in order to make it possible for the inspector to more intuitively understand the detection situation of the target detection item, the host computer 40 may graphically display the execution result in a real-time analysis interface of the target detection item, for example, for any one of the pressure detection item, the temperature detection item, the flow detection item, and the hydrogen concentration detection item, the host computer 40 may display the change situation of the corresponding physical quantity in the corresponding real-time analysis interface by using a graph or a line graph, as shown in fig. 6, and in the real-time analysis interface corresponding to the pressure detection item, the change situation of the pressure in the pipeline with time is shown by using a pressure curve. It can be understood that the tightness of the pipeline can be reflected by the pressure drop of the detection results of the same pressure sensor at two different moments without changing the states of the valves in the hydrogen supply system 1. It should be appreciated that after the inspector operates the start functionality control 501, the detection result corresponding to the target inspection item is displayed in real time in the real-time analysis interface, and the start functionality control 501 is replaced by the stop functionality control 503, and when the inspector wishes to stop the detection of the current target inspection item, the stop functionality control 503 may be operated, as shown in fig. 6.

In some examples of this embodiment, the detection system 2 further includes an additional display 60, see fig. 7: the display 60 is in communication connection with the host computer 40, for example, the host computer 40 and the display 60 can realize data interaction through a high-definition multimedia interface (High Definition Multimedia Interface, HDMI), and the host computer 40 outputs the detection result to the display 60 for display. In general, the host computer 40 may transmit all its display output contents to the display 60, and the display 60 performs display output. For example, in some examples, the host computer 40 controls its own screen to be in a screen-off state, and only displays it externally through the display 60. In other examples, the host computer 40 may control its own screen and the display 60 to display and output.

In general, the display area of the display 60 is larger than the display area of the screen of the host computer 40, so that compared with the screen of the host computer 40, the display 60 belongs to large-screen equipment, and large-screen display of display contents can be realized by performing display output on the display 60, so that a detector can watch the display contents more conveniently, and the display effect of the real-time analysis interface of a target detection item is better. In some examples, display 60 includes a plurality of display modules that are tiled together. In some examples, the display 60 may be any one of a liquid crystal display (Liquid Crystal Display, LCD), an electro-mechanical laser display (Organic Electroluminescence Display, OLED), and a Micro-scale LED (Micro-LED) display, a sub-millimeter-scale LED (Mini-LED) display.

In some examples of this embodiment, the detection system 2 further includes a DTU70, please refer to fig. 8, in which the DTU70 is communicatively connected to the controller 20. The DTU70 may implement communication between the detection system 2 and the cloud server 80, after the controller 20 obtains the detection result, the DTU70 may transmit the detection result to the server 80, and the server 80 may store the received detection result in a persistent manner, so that when the quality inspection of the hydrogen supply system 1 is required subsequently, the detection result corresponding to each detection item corresponding to the hydrogen supply system 1 may be obtained from the server 80. In addition, the server 80 may provide the detection result of the hydrogen supply system 1 to any authorized person, so as to realize sharing of the detection result, for example, the detection person may synchronize the detection result of the detection item from the server 80 to the mobile terminal, and then go to the shop site where the hydrogen supply system 1 is located, and calibrate the detection result according to the actual situation of the hydrogen supply system 1.

In some examples of this embodiment, a subscriber identification card (Subscriber Identity Module, SIM) may be provided in the DTU70, and the DTU70 may communicate directly with the server 80 via the SIM, so that only setting a communication address of the server 80 in the DTU70 may enable the DTU70 to communicate with the server 80, without requiring network configuration of the DTU 70.

In order for the detection system 2 to function properly, in some examples of this embodiment, an external dc power source may be used to power the various components in the detection system 2 so that the detection system 2 functions properly.

The foregoing detection system 2 and the detection method applied to the detection system 2 are described below with reference to fig. 9:

the detection system 2 comprises an upper computer 40, a CAN bus communication card 91, a controller 20, a display 60 and a DTU70, wherein the upper computer 40 is in communication connection with the controller 20 through the CAN bus communication card 91 and is in communication connection with the display 60 through an HDMI wire. The controller 20 is in communication connection with both the detection means 51 and the execution means 52 in the hydrogen supply system 1, and in addition the controller 20 is in communication connection with the DTU70, and the DTU70 is in wireless communication with the server 80.

In some examples of the present embodiment, as shown in fig. 10, the upper computer 40 includes a processor 41, a memory 42, and a communication bus 43, where the processor 41 and the memory 42 are communicatively connected through the communication bus 43, a first detection program is stored in the memory 42, and the processor 41 reads, compiles, and executes the first detection program, so that the flow on the upper computer 40 side in the detection method in any one of the foregoing examples can be implemented. Wherein the memory 42 may be used to store instructions, programs, code sets, or instruction sets. The memory 42 may include a stored program area that may store instructions for implementing an operating system, instructions for at least one function, and the above-described first detection program, and a stored data area; the data storage area may store data and the like related to the upper computer 40 side in the detection method provided in the above embodiment. Processor 41 may include one or more processing cores. The processor 41 performs various functions of the present application and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 42, invoking data stored in the memory 42. Processor 41 may be at least one of an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a digital signal processor (Digital Signal Processor, DSP), a digital signal processing device (Digital Signal Processing Device, DSPD), a programmable logic device (Programmable Logic Device, PLD), a field programmable gate array (Field Programmable Gate Array, FPGA), a central processing unit (Central Processing Unit, CPU), a controller, a microcontroller, and a microprocessor. It will be appreciated that the electronics for implementing the functions of the processor 41 described above may be other for different devices, and embodiments of the present application are not particularly limited. The controller 20 is provided with a second detection program, and by executing the second detection program, the controller 20 can implement the flow of the controller 20 side in the detection method in any of the foregoing examples.

The following describes the operation flow of the detection hydrogen supply system 1:

1) Firstly, connecting various pipelines of a hydrogen supply system 1, and realizing electric connection and communication connection among all hardware in an upper detection system 2;

2) The upper computer 40 and the display 60 are turned on, and an external direct current power supply is turned on to supply power to the controller 20, the CAN bus communication card 91 and the like, and in the embodiment, the output voltage of the external direct current power supply CAN be set to be direct current 12V;

3) Starting test software on the upper computer 40, setting the communication baud rate to be 500Kbps, and observing the working state of the CAN bus communication card 91;

4) Entering advanced functions on a software interface of test software, clicking a real-time curve analysis button to enter a real-time analysis interface;

5) After entering a real-time analysis interface, a button for starting real-time analysis on the current target detection item is firstly clicked to start detection work on the target detection item.

Such as the launch functionality control 501 in fig. 4, which may launch a detection job for a target detection item. Similarly, after entering the real-time analysis interface of other detection items, the corresponding start function control 501 needs to be clicked first. Currently, there are temperature detection items, pressure detection items, hydrogen concentration detection items, flow rate detection items, valve control response detection items, and the like for the detection items of the hydrogen supply system 1, wherein the valve control response detection items include control response detection for the cylinder valve 112 and control response for the pipe solenoid valve 135.

In the real-time analysis interface corresponding to each detection item, an item selection function control 502 corresponding to another detection item is provided, for example, in one example, in the real-time analysis interface of a temperature detection item, there is a "pressure switching button", a "concentration switching button", a "flow switching button", a "valve switching button", or the like, and in the real-time analysis interface of a pressure detection item, there is a "temperature switching button", a "concentration switching button", a "flow switching button", a "valve switching button", or the like.

Assuming that a temperature switching button is clicked by a detector in a real-time analysis interface corresponding to a certain detection item, the system switches to a real-time analysis interface for the temperature detection item in which the temperature of the environment in which the hydrogen supply system 1 is located and the temperature inside the hydrogen storage cylinder 111 can be measured;

assuming that a pressure switching button is clicked by a detector in a real-time analysis interface corresponding to a certain detection item, the system switches to the real-time analysis interface of the pressure detection item, in which the gas pressure values in the high-pressure line and the medium-pressure line can be measured. Meanwhile, the air tightness of the pipeline of the hydrogen supply system 1 can be detected through the pressure drop of the same pressure sensor in a certain time period;

assuming that in the real-time analysis interface corresponding to a certain detection item, a detection person clicks a concentration switching button, the system is switched to the real-time analysis interface corresponding to the hydrogen concentration detection item, so that the concentration of residual hydrogen in the space where the hydrogen supply system 1 is positioned can be measured, and the prompting function of safety alarm is achieved;

assuming that in a real-time analysis interface corresponding to a certain detection item, a detection person clicks a valve switching button, the system switches to the real-time analysis interface corresponding to the valve control response detection item so as to detect the bottle valve 112 and the pipeline electromagnetic valve 135, and on the real-time analysis interface, the buttons of the bottle valve 112 and the front-end pipeline total hydrogen supply pipeline electromagnetic valve 135 of the hydrogen storage bottle 111 can be clicked again to perform corresponding on-off hydrogen test;

assuming that in the real-time analysis interface corresponding to a certain detection item, the detection personnel clicks the flow switching button, the system switches to the real-time analysis interface corresponding to the flow detection item, and the flow of the hydrogen supplied to the front-end pipeline when the hydrogen supply system 1 works can be measured in the real-time analysis interface;

after the detection of each detection item is completed, the page closing function control can be clicked respectively to close the corresponding real-time analysis interface. After stopping the detection of the related detection items, the detection personnel can store the detection results corresponding to the detection items.

The detection system 2 of the hydrogen supply system 1 can ensure the accuracy and real-time performance of the detection result. The detection system 2 is provided with a large display 60, so that real-time detection results are displayed on the display 60 and can be used for on-site observation and massage. In addition, the detection process is simplified by switching the real-time analysis interface, the total time of the test is shortened, and the detection efficiency is effectively improved.

In addition, the detection system 2 may be communicatively connected to the remote data server 80 through the DTU70, and a SIM card is provided in the DTU70 and configured with the communication address of the server 80. The DTU70 may communicate with the server 80 to realize transmission of the detection result, and the server 80 may provide the obtained detection result to the client device with authority, so that the detection personnel may check the detection result in real time or off-line on the site where the hydrogen supply system 1 is located through the client device.

Embodiments of the present application provide a computer-readable storage medium, for example, comprising: a U-disk, a removable hard disk, a Read Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes. The computer-readable storage medium stores a computer program that can be loaded by the processor 41 and execute the detection method of the above embodiment on the host computer 40 side or the controller 20 side.

The foregoing embodiments are only used for describing the technical solution of the present application in detail, but the descriptions of the foregoing embodiments are only used for helping to understand the method and the core idea of the present application, and should not be construed as limiting the present application. Variations or alternatives that are readily contemplated by those skilled in the art within the scope of the present disclosure are intended to be encompassed within the scope of the present disclosure.

Claims (10)

1. The detection system of the hydrogen supply system is characterized by comprising a controller, a bus communication card and an upper computer;

the controller is in communication connection with the upper computer through the bus communication card; the controller is configured to be in communication with a detection device and an execution device disposed in the hydrogen supply system; the upper computer is configured to send a detection instruction to the controller through the bus communication card; the controller is configured to generate a detection result for the detection instruction according to the detection instruction and the acquisition result of the detection device, or control the operation of the execution device according to the detection instruction, and generate the detection result corresponding to the detection instruction according to the operation result of the execution device; the controller is also configured to transmit to the host computer through the bus communication card.

2. The detection system of claim 1, wherein the detection device comprises at least one of a temperature sensor, a pressure sensor, a hydrogen concentration sensor, and a flow meter; the execution device comprises a pipeline electromagnetic valve and a bottle valve.

3. The inspection system of claim 1 wherein said bus communication card comprises a controller area network CAN bus communication card.

4. The inspection system of claim 1 further comprising a display communicatively coupled to the host computer, wherein a display area of the display is larger than a display area of a screen in the host computer.

5. The detection system according to any one of claims 1 to 4, further comprising a data transmission unit in communication with the controller, the data transmission unit being configured to transmit the detection result to a server.

6. A detection method of a hydrogen supply system, characterized by being applied to the detection system according to any one of claims 1 to 5, comprising:

the upper computer receives a detection instruction for a target detection item, wherein the target detection item is one of a plurality of detection items for the hydrogen supply system;

the upper computer sends a detection instruction to the controller according to the detection instruction;

the upper computer receives a detection result returned by the controller according to the detection instruction, wherein the detection result comprises a collection result of the detection device, or the detection result is generated based on a working result of the execution device after the controller controls the execution device to work according to the detection instruction;

and the upper computer displays the detection result.

7. The method of detecting according to claim 6, wherein the detection items include a temperature detection item, a pressure detection item, a concentration detection item, a flow rate detection item, and a valve control response detection item; the detection device corresponding to the temperature detection item is a temperature sensor, the detection device corresponding to the pressure detection item is a pressure sensor, the detection device corresponding to the concentration detection item is a hydrogen concentration sensor, the detection device corresponding to the flow detection item is a flow meter, and the execution device corresponding to the valve control response detection item is at least one of a pipeline electromagnetic valve and a bottle valve.

8. The inspection method of claim 6, wherein before the host computer receives the inspection instruction for the target inspection item, the inspection method further comprises:

the upper computer receives a real-time analysis instruction;

the upper computer shows a real-time analysis interface of the target detection item according to the real-time analysis instruction, wherein the real-time analysis interface comprises a starting function control;

the upper computer receiving the detection instruction for the target detection item comprises the following steps: the upper computer detects the detection indication issued by operating the starting function control;

the upper computer displaying the detection result comprises the following steps: and the upper computer graphically displays the detection result obtained in real time in the real-time analysis interface.

9. The detection method of claim 8, wherein the real-time analysis interface further comprises an item selection function control; after the upper computer shows the real-time analysis interface of the target detection item according to the real-time analysis instruction, the detection method further comprises the following steps:

the upper computer detects a switching instruction issued by operating the item selection function control;

and displaying a real-time analysis interface of the new target detection item according to the switching instruction.

10. The detection method according to any one of claims 6 to 9, wherein the detection system includes a data transmission unit communicatively connected to the controller, and the host computer sends a detection instruction to the controller according to the detection instruction, and the detection method further includes:

the controller controls the data transmission unit to send the detection result to a server so that the server can store the detection result.