CN116400018A - Hydrogen concentration early warning method, device, terminal equipment and storage medium - Google Patents

Abstract

The embodiment of the application is suitable for the technical field of hydrogen and provides a hydrogen concentration early warning method, a device, terminal equipment and a storage medium, wherein the method comprises the following steps: respectively acquiring a first concentration of hydrogen detected by each detection device and a second concentration detected last time; determining a target detection device from all detection devices according to the first concentration and the second concentration respectively; predicting a target concentration change result of the hydrogen after preset time according to the first target concentration detected by all target detection equipment and the second target concentration detected by the target detection equipment last time; and if the target concentration change result is that the concentration of the hydrogen is greater than or equal to the preset concentration after the preset time, sending an early warning instruction to the alarm equipment.

Description

Hydrogen concentration early warning method, device, terminal equipment and storage medium

technical field

The present application belongs to the technical field of hydrogen, and in particular relates to a hydrogen concentration early warning method, device, terminal equipment and storage medium.

Background technique

Hydrogen energy has outstanding advantages such as convenient storage and transportation, clean and environmental protection, etc. It can be used as the main industrial raw material, and has a wide range of applications in petrochemical, electronic industry, metallurgical industry, food processing, float glass, fine organic synthesis, aerospace and other fields.

At normal temperature and pressure, the performance of hydrogen is generally relatively stable. However, in a confined space, if the volume fraction of hydrogen in air is between 4% and 75%, it is very easy to cause an explosion. Therefore, it is necessary to configure detection equipment such as a hydrogen detector to detect the concentration of hydrogen in the working environment. However, when the hydrogen gas detector detects that the hydrogen concentration is higher than the warning concentration and issues an alarm, a serious hydrogen leakage event may have occurred in the working environment; .

Based on this, in the prior art, the early warning method for the change of the hydrogen concentration is unreasonable, and the early warning effect is poor.

Contents of the invention

The embodiment of the present application provides a hydrogen concentration early warning method, device, terminal equipment and storage medium, which can solve the problem that the method for early warning of hydrogen concentration changes in the prior art is unreasonable.

In the first aspect, the embodiment of the present application provides a hydrogen concentration early warning method, the method comprising:

Respectively obtain the first concentration of hydrogen detected by each detection device and the second concentration detected last time;

determining the target detection device from all detection devices according to the first concentration and the second concentration respectively;

According to the first target concentration detected by all target detection devices and the second target concentration last detected by the target detection device, predict the target concentration change result of hydrogen after a preset time;

If the change result of the target concentration is that the hydrogen concentration is greater than or equal to the preset concentration after the preset time, an early warning instruction is sent to the alarm device.

In the second aspect, the embodiment of the present application provides a hydrogen concentration early warning device, which includes:

The first obtaining module is used to separately obtain the first concentration of hydrogen detected by each detection device and the second concentration detected last time;

The first determination module is used to determine the target detection device from all detection devices according to the first concentration and the second concentration respectively;

The prediction module is used to predict the change result of the target concentration of hydrogen after a preset time according to the first target concentration detected by all target detection devices and the second target concentration detected last time by the target detection device;

The early warning module is used to send an early warning instruction to the alarm device if the target concentration change result is that the concentration of hydrogen is greater than or equal to the preset concentration after a preset time.

In the third aspect, an embodiment of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, the method in the first aspect above is implemented .

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the method in the first aspect above is implemented.

In a fifth aspect, an embodiment of the present application provides a computer program product, which, when the computer program product is run on a terminal device, causes the terminal device to execute the method in the first aspect above.

Compared with the prior art, the embodiment of the present application has the beneficial effect that: in order to improve the reliability of the predicted target concentration change result, the terminal device can detect the concentration of hydrogen gas according to multiple detection devices. After that, according to the first concentration detected by each detection device and the second concentration detected last time, the target detection device with higher detection accuracy is further determined from all the detection devices, and according to the detection accuracy of all target detection devices The first target concentration of hydrogen and the second target concentration detected last time can predict the change result of the target concentration of hydrogen after a preset time. In this way, the reliability of the predicted target concentration change result can be further improved. Finally, when the change result of the target concentration is that the concentration of hydrogen is greater than or equal to the preset concentration after the preset time, an early warning instruction can be sent to the alarm device in time to give a reasonable early warning of the change of the hydrogen concentration.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only for the present application For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without creative effort.

Fig. 1 is the implementation flowchart of a kind of hydrogen concentration early warning method provided by an embodiment of the present application;

Fig. 2 is a schematic structural view of a hydrogen concentration early warning device provided by an embodiment of the present application;

Fig. 3 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.

Detailed ways

In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and/or components, but does not exclude one or more other Presence or addition of features, wholes, steps, operations, elements, components and/or collections thereof.

In addition, in the description of the specification and the appended claims of the present application, the terms "first", "second", "third" and so on are only used to distinguish descriptions, and should not be understood as indicating or implying relative importance.

In order to be able to monitor the concentration of hydrogen in the working environment, it is usually necessary to use detection equipment such as a hydrogen detector to detect the volume fraction of hydrogen in the air (hydrogen concentration) in real time or at regular intervals. Afterwards, an alarm is given when it is detected that the hydrogen concentration is greater than the warning concentration.

Specifically, the hydrogen detector can detect the hydrogen concentration in the air, convert the hydrogen concentration into an electrical signal, and then transmit it to the alarm controller through a cable. Wherein, the higher the hydrogen concentration, the stronger the electric signal. When the hydrogen concentration reaches or exceeds the warning concentration set by the alarm controller, the alarm controller can send an alarm signal to control the alarm equipment for early warning.

However, when the alarm equipment is controlled for early warning, a serious hydrogen leakage event may have occurred in the working environment, resulting in a high concentration of hydrogen in the confined space, which poses a greater safety risk. If a lower warning concentration is set, the hydrogen detector may frequently control the alarm equipment for early warning, which will affect the operation.

Based on this, in order to be able to reasonably give early warning to changes in hydrogen concentration, the embodiment of the present application provides a hydrogen concentration early warning method, which can be applied to tablet computers, notebook computers, ultra-mobile personal computers (ultra-mobile personal computers) computers, UMPCs), netbooks and other terminal devices, or can be applied to detection devices such as hydrogen detectors, and the embodiments of the present application do not impose any restrictions on the specific types of terminal devices.

Please refer to Fig. 1, Fig. 1 shows the implementation flowchart of a kind of hydrogen concentration early warning method provided by the embodiment of the present application, the method includes the following steps:

S101. Respectively acquire the first concentration of hydrogen detected by each detection device and the second concentration detected last time.

In one embodiment, the detection device is a device for detecting the concentration of hydrogen in the air. Among them, the detection equipment can be various types such as portable hydrogen detector, pump-suction hydrogen detector, and online hydrogen detector. Wherein, the multiple detection devices may be detectors of the same model, or detectors of different models, which is not limited.

Wherein, a plurality of detection devices can be arranged around the storage device for storing hydrogen, so that when a hydrogen leakage event occurs in the storage tank, it can be detected by the detection devices in time.

In an embodiment, the above-mentioned first concentration is the concentration of hydrogen gas detected by the detection device at the current moment. The second concentration is the concentration of hydrogen detected by the detection device at the last moment. Generally, the detection device can detect the hydrogen concentration every fixed period.

S102. Determine a target detection device from all detection devices according to the first concentration and the second concentration respectively.

In one embodiment, based on the above description of the detection equipment, it can be known that if the target concentration change results of hydrogen are subsequently determined based on all the detection equipment, the distance between the location where the storage device leaks and the detection equipment may be different. The variation between the first concentration and the second concentration detected by the detection device farther away is smaller. Furthermore, when the target concentration change result is determined according to all the detection equipment, it may be considered that the storage device does not leak at this time, until it is determined according to all the detection equipment that the target concentration change result is that the concentration of hydrogen is greater than the preset concentration. The device may have leaked a large amount of hydrogen, which is extremely dangerous.

Therefore, it can be considered that determining the target detection device from all the detection devices and subsequently determining the target concentration change result based on the first target concentration and the second target concentration detected by the target detection device can improve the reliability of the target concentration change result.

Specifically, for any detection device, the terminal device can calculate the difference between the first concentration and the second concentration; then, if the difference is greater than the preset value, it can be considered that the detection device is closer to the leakage location in the storage device. close. Therefore, the detection device can be determined as the target detection device. Otherwise, when the difference is less than or equal to the preset value, it can be considered that the detection device is far away from the leak location.

It should be noted that when the difference between the first concentration and the second concentration corresponding to all detection devices is less than or equal to the preset value, it can be considered that the storage device does not leak. Therefore, the terminal device does not need to perform the subsequent steps S103-S104.

In an embodiment, the above preset value may be set according to actual conditions, which is not limited.

Wherein, determining whether the detection device is a target detection device according to the difference being greater than a preset value is only one example. In another embodiment, the terminal device may also acquire the image captured by the image capture device that includes the storage device, and perform image recognition on the image to determine whether the storage device has a leak. Thereafter, when it is determined that the storage device has a leak, the location of the leak is determined from the image. Finally, the terminal device may determine all detection devices within a preset distance from the leak location as target detection devices.

What needs to be added is that the image recognition method may be that a trained recognition model is preset inside the terminal device, which can perform model processing on the image to output a recognition result. Wherein, the identification results are divided into the result that the storage device does not leak, and the result that the storage device leaks and includes a specific leak location.

S103. According to the first target concentration detected by all target detection devices and the second target concentration detected last time by the target detection device, predict the target concentration change result of hydrogen after a preset time.

In an embodiment, the aforementioned preset time may be set according to actual conditions. Usually, if it is predicted that the concentration of hydrogen is greater than or equal to the preset concentration after the preset time, an early warning instruction can be sent to the alarm device to control the alarm device to alarm. After that, the staff can respond to the leak in a targeted manner within a preset time. That is, it can be considered that the preset time should be greater than or equal to the processing time for the staff to perform targeted operations.

Wherein, the target concentration change result is divided into the result that the hydrogen concentration after the preset time is greater than or equal to the preset concentration, and the result that the hydrogen concentration after the preset time is less than the preset concentration. Wherein, when the volume fraction of hydrogen in the air is 4%-75%, it is very easy to cause an explosion, therefore, the preset concentration can be 4%.

In an embodiment, the above-mentioned first target concentration may be the first concentration of hydrogen detected by the target detection device at the current moment; the above-mentioned second target concentration may be the second concentration of hydrogen detected by the target detection device last time .

It should be noted that, according to the above explanation of S102, since the distance between each target detection device and the leakage position in the storage device is different, the number of determined target detection devices may be one or multiple. Based on this, when there is one, the target concentration change result can be directly determined according to the first target concentration and the second target concentration of the target detection device.

However, when there are multiple target detection devices, the first target concentration and the second target concentration detected by each target detection device may also be different due to the distance between each target detection device and the leakage location in the storage device. . Therefore, different first target concentrations and second target concentrations will eventually predict different initial concentration change results.

Based on this, for any target detection device, the terminal device can first determine the initial concentration change result of hydrogen after a preset time according to the first target concentration and the second target concentration. Afterwards, the result of counting all initial concentration changes is that the hydrogen concentration after the preset time is greater than or equal to the first quantity of the preset concentration. Finally, the target concentration change result is determined according to the first quantity.

Wherein, the result of the initial concentration change is also divided into the result that the concentration of hydrogen gas is greater than or equal to the preset concentration after a preset time, and the result that the concentration of hydrogen gas after a preset time is less than the preset concentration.

Specifically, the terminal device may first calculate the hydrogen concentration change rate per unit time according to the first target concentration and the second target concentration. Afterwards, the terminal device can calculate the product value of the concentration change rate and the preset time as the increased concentration of hydrogen within the preset time. Finally, the sum of the product value and the first target concentration is determined as the hydrogen concentration after a preset time. At this time, the terminal device can directly determine the initial concentration change result according to the hydrogen concentration after the preset time and the preset concentration.

Exemplarily, the terminal device may first calculate the concentration difference between the first target concentration and the second target concentration, and determine the time difference between the current moment and the last time the second target concentration was detected. Afterwards, the ratio of the concentration difference to the time difference is determined as the hydrogen concentration change rate at a future moment. That is, the rate at which the storage device leaks hydrogen. Among them, the detection equipment usually detects the hydrogen concentration once every fixed period. Therefore, the time difference is usually one cycle.

It can be understood that different target detection devices correspond to different first target concentrations and second target concentrations, therefore, their corresponding concentration change rates are generally also different.

In an embodiment, determining the target concentration change result according to the first quantity may be: counting the second quantity of all initial concentration change results; if the ratio of the first quantity to the second quantity is greater than or equal to the preset ratio, then determine the target The result of the concentration change is that the concentration of hydrogen after the preset time is greater than or equal to the preset concentration; if the ratio of the first quantity to the second quantity is less than the preset ratio, then it is determined that the result of the target concentration change is that the concentration of hydrogen after the preset time is less than the preset concentration.

Wherein, the preset ratio can be set according to the actual situation, for example, in order to find out whether the storage device leaks in time and avoid frequent alarms due to false detection. The ratio may be 0.5. Among them, the purpose of setting the preset ratio to 0.5 is: if the preset ratio is small, it may cause frequent alarms due to false detection by the target detection equipment; , it is difficult to generate an alarm in time.

S104. If the change result of the target concentration is that the hydrogen concentration after the preset time is greater than or equal to the preset concentration, send an early warning instruction to the alarm device.

In an embodiment, when the target concentration change result is that the concentration of hydrogen is greater than or equal to the preset concentration after the preset time, in order to avoid danger, the terminal device can send an early warning instruction to the alarm device in advance to control the alarm device to warn the staff. early warning. Wherein, when the target concentration change result is that the hydrogen concentration is less than the preset concentration after the preset time, it can be considered that no leakage event has occurred in the storage device, and therefore, the terminal device can execute the above hydrogen concentration warning method again.

In another embodiment, the concentration of hydrogen is greater than or equal to the preset concentration after it is determined that the change result of the target concentration is the preset time, in order to enable the staff to determine the urgency of the hydrogen leakage and deal with it in a targeted manner. The terminal device may also determine the maximum concentration change rate from all the concentration change rates after calculating the hydrogen concentration change rate corresponding to each target detection device within a unit time. At the same time, the maximum value of the first target concentration is determined from all the first target concentrations detected at the current moment. Afterwards, the concentration difference between the preset concentration and the first maximum target concentration is calculated. Finally, the ratio between the concentration difference and the maximum concentration change rate is determined as the target duration required for the concentration of hydrogen to be greater than or equal to the preset concentration when a leakage event occurs in the storage device.

Then, the terminal device may determine the target time period in which the target duration is located and the target urgency corresponding to the target time period according to the preset association relationship between the urgency level and the time period. Afterwards, a target early warning command corresponding to the target urgency is sent to the alarm device, so as to control the alarm device to perform early warning according to the early warning mode corresponding to the target early warning command.

Among them, the early warning methods include but are not limited to one or a combination of whistles, flashes, and voice broadcasts. The degree of urgency can be divided into mild, moderate and severe. Exemplarily, the shorter the time period, it means that the hydrogen concentration will reach the preset concentration faster, therefore, the shorter time period corresponds to a higher degree of urgency. At this time, the early warning method corresponding to the shorter time period may be a combination of whistle, flash and voice broadcast.

In this embodiment, in order to improve the reliability of the predicted target concentration change result, the terminal device may detect the concentration of hydrogen gas according to a plurality of detection devices. After that, according to the first concentration detected by each detection device and the second concentration detected last time, the target detection device with higher detection accuracy is further determined from all the detection devices, and according to the detection accuracy of all target detection devices The first target concentration of hydrogen and the second target concentration detected last time can predict the change result of the target concentration of hydrogen after a preset time. In this way, the reliability of the predicted target concentration change result can be further improved. Finally, when the change result of the target concentration is that the concentration of hydrogen is greater than or equal to the preset concentration after the preset time, an early warning instruction can be sent to the alarm device in time to give a reasonable early warning of the change of the hydrogen concentration.

In another embodiment, after the target detection device is determined, in order to avoid errors in the first concentration detected by the target detection device, the terminal device may further correct it to obtain a first target concentration with higher accuracy.

Specifically, the terminal device can obtain the current environmental factors within the preset range of the target detection device, and determine the target correction coefficient corresponding to the current environmental factor according to the correlation between the preset environmental factors and the correction coefficient. Finally, the first concentration is corrected by using the target correction coefficient to obtain the first target concentration. For example, the product of the target correction coefficient and the first density is determined as the first target density.

Wherein, the current environmental factors include but are not limited to factors such as temperature, air pressure, and humidity, which are not limited thereto. Generally, under different environmental factors, the first concentration of hydrogen detected by the detection device may be different. That is, the detection device may be easily affected by temperature, air pressure and/or humidity, so that the detected first concentration has errors.

The foregoing preset range may be set according to actual conditions. Exemplarily, because the storage device for storing hydrogen is usually located in a closed space, however, factors such as temperature, air pressure, and humidity in the closed space are generally consistent. Therefore, it can be considered that the preset range is the range corresponding to the entire confined space.

Wherein, different environmental factors may be acquired according to different acquisition devices. For example, acquisition devices such as a temperature sensor, a humidity sensor, or a barometer are used for acquisition, which will not be described in detail.

Based on this, the terminal device can pre-simulate various environmental factors, and obtain the hydrogen concentration collected by the detection device under each environmental factor. After that, the corresponding correction coefficient is determined according to the actual concentration value of hydrogen under each simulated environmental factor. Then, the correlation between the preset environmental factors and the correction coefficients is established.

In a specific embodiment, when determining the corresponding correction coefficient according to the actual concentration value of hydrogen under each simulated environmental factor, the detection equipment can be used to collect the concentration of hydrogen multiple times under the same environmental factor to obtain multiple a concentration value. Afterwards, the ratio of the actual density value to the average value of the plurality of density values is determined as the correction coefficient.

Please refer to FIG. 2 . FIG. 2 is a structural block diagram of a hydrogen concentration early warning device provided in an embodiment of the present application. The modules included in the hydrogen concentration early warning device in this embodiment are used to execute the steps in the embodiment corresponding to FIG. 1 . For details, please refer to FIG. 1 and related descriptions in the embodiment corresponding to FIG. 1 . For ease of description, only the parts related to this embodiment are shown. Referring to Fig. 2, the hydrogen concentration early warning device 200 may include: a first acquisition module 210, a first determination module 220, a prediction module 230 and an early warning module 240, wherein:

The first acquisition module 210 is configured to respectively acquire the first concentration of hydrogen detected by each detection device and the second concentration detected last time.

The first determination module 220 is configured to determine a target detection device from all detection devices according to the first concentration and the second concentration respectively.

The prediction module 230 is configured to predict the change result of the target concentration of hydrogen after a preset time according to the first target concentration detected by all target detection devices and the second target concentration detected last time by the target detection device.

The early warning module 240 is configured to send an early warning instruction to the alarm device if the result of the target concentration change is that the hydrogen concentration is greater than or equal to the preset concentration after a preset time.

In an embodiment, the first determining module 220 is also used for:

For any detection device, the difference between the first concentration and the second concentration is calculated; if the difference is greater than a preset value, the detection device is determined as the target detection device.

In one embodiment, the hydrogen concentration warning device 200 also includes:

The second acquisition module is used to acquire the current environmental factors within the preset range of the target detection device.

The second determination module is used to determine the target correction coefficient corresponding to the current environmental factor according to the association relationship between the preset environmental factor and the correction coefficient.

The correction module is used to correct the first concentration by using the target correction coefficient to obtain the first target concentration.

In one embodiment, the correction module is also used for:

The product of the target correction coefficient and the first density is determined as the first target density.

In one embodiment, the prediction module 230 is also used for:

For any target detection device, according to the first target concentration and the second target concentration, determine the initial concentration change result of hydrogen after the preset time; count all the initial concentration change results as the concentration of hydrogen after the preset time is greater than or equal to the preset The first quantity of the concentration; determine the target concentration change result according to the first quantity.

In one embodiment, the prediction module 230 is also used for:

Count the second quantity of all initial concentration change results; if the ratio of the first quantity to the second quantity is greater than or equal to the preset ratio, then determine that the target concentration change result is that the concentration of hydrogen after the preset time is greater than or equal to the preset concentration; if The ratio of the first amount to the second amount is smaller than the preset ratio, and then it is determined that the target concentration change result is that the hydrogen concentration after the preset time is lower than the preset concentration.

In one embodiment, the prediction module 230 is also used for:

Calculate the concentration change rate of hydrogen per unit time according to the first target concentration and the second target concentration; calculate the product value of the concentration change rate and the preset time; determine the sum of the product value and the first target concentration as after the preset time The concentration of hydrogen gas; the initial concentration change result is determined according to the concentration of hydrogen gas after a preset time.

It should be understood that, in the structural block diagram of the hydrogen concentration early warning device shown in FIG. 2, each module is used to execute each step in the embodiment corresponding to FIG. 1, and each step in the embodiment corresponding to FIG. 1 has been described above. For detailed explanation in the embodiment, please refer to FIG. 1 and related descriptions in the embodiment corresponding to FIG. 1 for details, and details are not repeated here.

Fig. 3 is a structural block diagram of a terminal device provided by an embodiment of the present application. As shown in FIG. 3 , the terminal device 300 of this embodiment includes: a processor 310 , a memory 320 , and a computer program 330 stored in the memory 320 and executable on the processor 310 , such as a program of a hydrogen concentration early warning method. When the processor 310 executes the computer program 330 , the steps in the above-mentioned embodiments of the hydrogen concentration early warning method are implemented, such as S101 to S104 shown in FIG. 1 . Alternatively, when the processor 310 executes the computer program 330, it realizes the functions of the modules in the above-mentioned embodiment corresponding to FIG. 2 , for example, the functions of the modules 210 to 240 shown in FIG. 2 . describe.

Exemplarily, the computer program 330 can be divided into one or more modules, and one or more modules are stored in the memory 320 and executed by the processor 310 to realize the hydrogen concentration early warning method provided in the embodiment of the present application. One or more modules may be a series of computer program instruction segments capable of accomplishing specific functions, and the instruction segments are used to describe the execution process of the computer program 330 in the terminal device 300 . For example, the computer program 330 can realize the hydrogen concentration early warning method provided in the embodiment of the present application.

The terminal device 300 may include, but not limited to, a processor 310 and a memory 320 . Those skilled in the art can understand that FIG. 3 is only an example of the terminal device 300, and does not constitute a limitation on the terminal device 300. It may include more or less components than those shown in the figure, or combine certain components, or different components. , for example, a terminal device may also include an input and output device, a network access device, a bus, and the like.

The so-called processor 310 may be a central processing unit, or other general-purpose processors, digital signal processors, application-specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components wait. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

The storage 320 may be an internal storage unit of the terminal device 300 , such as a hard disk or memory of the terminal device 300 . The storage 320 may also be an external storage device of the terminal device 300, such as a plug-in hard disk, a smart memory card, a flash memory card, etc. equipped on the terminal device 300. Further, the memory 320 may also include both an internal storage unit of the terminal device 300 and an external storage device.

An embodiment of the present application provides a computer-readable storage medium, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, the hydrogen gas in the above-mentioned embodiments is realized Concentration early warning method.

An embodiment of the present application provides a computer program product. When the computer program product is run on a terminal device, the terminal device is made to execute the hydrogen concentration early warning method in each of the foregoing embodiments.

The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still apply to the foregoing embodiments Modifications to the technical solutions recorded, or equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the application, and should be included in this application. within the scope of protection.

Claims (10)

1. A hydrogen concentration early warning method, characterized in that the method comprises: Respectively obtain the first concentration of hydrogen detected by each detection device and the second concentration detected last time; determining a target detection device from all the detection devices according to the first concentration and the second concentration respectively; According to the first target concentration detected by all the target detection devices and the second target concentration detected last time by the target detection device, predict the target concentration change result of the hydrogen gas after a preset time; If the change result of the target concentration is that the hydrogen concentration after the preset time is greater than or equal to the preset concentration, an early warning command is sent to the alarm device. 2. The method according to claim 1, wherein the determining the target detection device from all the detection devices according to the first concentration and the second concentration respectively comprises: calculating the difference between the first concentration and the second concentration for any of the detection devices; If the difference is greater than the preset value, the detection device is determined as the target detection device. 3. The method according to claim 1 or 2, wherein after said determining the target detection device from all said detection devices according to said first concentration and said second concentration respectively, further comprising: Obtaining the current environmental factors within the preset range of the target detection device; Determine the target correction coefficient corresponding to the current environmental factor according to the correlation between the preset environmental factor and the correction coefficient; The first concentration is corrected by using the target correction coefficient to obtain the first target concentration. 4. The method according to claim 3, wherein said correcting said first concentration by using said target correction coefficient to obtain said first target concentration comprises: The product of the target correction coefficient and the first concentration is determined as the first target concentration. 5. The method according to claim 1, characterized in that, predicting the The target concentration change results of hydrogen after a preset time, including: For any of the target detection devices, according to the first target concentration and the second target concentration, determine the initial concentration change result of the hydrogen after a preset time; The result of counting all the changes in the initial concentration is that the hydrogen concentration after the preset time is greater than or equal to the first amount of the preset concentration; The target concentration change result is determined according to the first quantity. 6. The method according to claim 5, wherein the determining the target concentration change result according to the first quantity comprises: counting the second quantity of all the initial concentration change results; If the ratio of the first amount to the second amount is greater than or equal to a preset ratio, then determining that the target concentration change result is that the hydrogen concentration after the preset time is greater than or equal to a preset concentration; If the ratio of the first quantity to the second quantity is less than a preset ratio, then determining that the target concentration change result is that the hydrogen concentration after the preset time is less than a preset concentration. 7. The method according to claim 5, characterized in that, according to the first target concentration and the second target concentration, determining the initial concentration change result of the hydrogen after a preset time comprises: calculating the hydrogen concentration change rate per unit time according to the first target concentration and the second target concentration; calculating the product value of the concentration change rate and the preset time; determining the sum of the product value and the first target concentration as the hydrogen concentration after the preset time; The initial concentration change result is determined according to the hydrogen concentration after the preset time. 8. A hydrogen concentration early warning device, characterized in that the device comprises: The first obtaining module is used to separately obtain the first concentration of hydrogen detected by each detection device and the second concentration detected last time; A first determination module, configured to determine a target detection device from all the detection devices according to the first concentration and the second concentration respectively; A prediction module, configured to predict the target concentration change result of the hydrogen after a preset time according to the first target concentration detected by all the target detection devices and the second target concentration detected last time by the target detection device; An early warning module, configured to send an early warning instruction to an alarm device if the change result of the target concentration is that the hydrogen concentration after the preset time is greater than or equal to a preset concentration. 9. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and operable on the processor, characterized in that, when the processor executes the computer program, the computer program according to claim The method described in any one of 1 to 7. 10. A computer-readable storage medium storing a computer program, wherein the computer program implements the method according to any one of claims 1 to 7 when executed by a processor.

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