A hydrogen fuel cell monitoring and management method and system for hydrogen-powered two-wheeled vehicles

Abstract

The present invention discloses a hydrogen fuel cell monitoring and management method and system for a hydrogen-powered two-wheeled vehicle, the method comprising the following steps: 1) monitoring the deformation of the battery compartment through a deformation monitoring module; 2) monitoring the internal temperature through a temperature sensor; 3) monitoring the internal hydrogen concentration through a hydrogen sensor; 4) judging whether a hydrogen leakage occurs through a hydrogen leakage analysis module in combination with the results of step 1) and step 3), and further analyzing the cause of the leakage when a hydrogen leakage occurs, and taking corresponding measures. In the present invention, the deformation of the battery compartment can be detected by utilizing special image processing and image analysis methods; the present invention can also simultaneously detect the temperature of the battery compartment and the hydrogen concentration in the surrounding environment of the battery compartment. Furthermore, the present invention can not only detect hydrogen leakage by combining the deformation detection results and the hydrogen concentration detection results, but also further analyze the cause of the leakage.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen energy technology, and in particular to a hydrogen fuel cell monitoring and management method and system for a hydrogen energy two-wheeled vehicle. Background Art

[0002] Hydrogen electric vehicles use hydrogen fuel cells to provide power, and have the advantages of safety, low carbon, environmental protection, long driving range, and fast hydrogen filling speed, and have good application prospects.

[0003] A hydrogen fuel cell is a power generation device that converts the chemical energy of hydrogen and oxygen directly into electrical energy. Its basic principle is based on the redox reaction of hydrogen and oxygen at the electrodes. Hydrogen is oxidized into hydrogen ions (protons) and electrons at the anode (positive electrode). The electrons flow to the cathode (negative electrode) through an external circuit, while the hydrogen ions reach the cathode through the electrolyte membrane. At the cathode, hydrogen ions combine with oxygen to form water, while releasing a large amount of heat energy. The potential difference generated in this process drives the external circuit, thereby generating electrical energy.

[0004] When hydrogen fuel cells are used in electric two-wheeled vehicles, in order to improve safety and ensure the stable operation of hydrogen fuel cells, hydrogen fuel cells are usually placed in a battery compartment with a certain structural strength for use. The battery compartment completely covers the battery, acting as a physical isolation barrier, with dustproof, waterproof, fireproof and other characteristics, which can better ensure the safe operation of the battery. The hydrogen and oxygen required for the operation of the hydrogen fuel cell are transported into the battery compartment through pipelines, and the excess hydrogen needs to be discharged and recycled through pipelines. At the same time, the exhaust products during the operation of the hydrogen fuel cell also need to be discharged from the battery compartment through pipelines.

[0005] Although the battery compartment can provide good protection for hydrogen fuel cells, hydrogen-powered electric two-wheeled vehicles cannot stop stably like four-wheeled vehicles, especially two-wheeled vehicles for shared applications, which are prone to frequent falls or other external damage. This situation can easily cause damage to hydrogen supply pipelines, excess hydrogen recovery pipelines, exhaust product emission pipelines, etc., resulting in the risk of hydrogen leakage. And when the battery compartment is deformed by external forces, it may cause damage to internal components, hydrogen leakage from the battery compartment, etc., making the internal battery unable to work normally or even causing safety accidents. The relative molecular weight of hydrogen is small, and it is very easy to leak and penetrate. When hydrogen leaks and accumulates, there will be risks of combustion and explosion.

[0006] Therefore, for hydrogen-powered electric two-wheeled vehicles, deformation detection and hydrogen leakage detection of the battery compartment are very necessary. When deformation or hydrogen leakage occurs, timely taking corresponding measures can reduce safety accidents, and early maintenance and use can also reduce hardware loss.

[0007] Therefore, it is necessary to develop a solution that can realize deformation detection and hydrogen leakage detection of the battery compartment in the hydrogen fuel cell used in the hydrogen-powered two-wheeled vehicle. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a hydrogen fuel cell monitoring and management method and system for a hydrogen-powered two-wheeled vehicle in view of the deficiencies in the above-mentioned prior art.

[0009] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: In a first aspect of the present invention, a hydrogen fuel cell monitoring and management method for a hydrogen-powered two-wheeled vehicle is provided, wherein the hydrogen fuel cell is arranged in a battery compartment, and the battery compartment is fixedly installed in an installation room arranged on the hydrogen-powered two-wheeled vehicle, and the method comprises the following steps:

[0010] 1) The deformation monitoring module is used to monitor the deformation of the battery compartment using a machine vision-based method;

[0011] 2) monitoring the internal temperature by means of a temperature sensor disposed in the installation room, and taking cooling measures to cool the installation room when the temperature is too high;

[0012] 3) monitoring the internal hydrogen concentration by a hydrogen sensor disposed in the installation chamber;

[0013] 4) Through the hydrogen leakage analysis module, combined with the results of step 1) and step 3), determine whether hydrogen leakage occurs, and if hydrogen leakage occurs, further analyze the cause of the leakage and take corresponding measures.

[0014] Preferably, the battery compartment is provided with a hydrogen supply pipeline, an oxygen supply pipeline, an excess hydrogen recovery pipeline and an exhaust gas discharge pipeline connected to the internal hydrogen fuel cell;

[0015] The hydrogen supply pipeline and the oxygen supply pipeline are used to provide the hydrogen fuel cell with the hydrogen and oxygen required for the reaction respectively, the excess hydrogen recovery pipeline is used to discharge and recover the excess hydrogen entering the hydrogen fuel cell, and the tail gas exhaust pipeline is used to discharge the products after the hydrogen fuel cell reaction.

[0016] Preferably, the judgment result output by the deformation monitoring module is a deformation grade, which specifically includes: no deformation or slight deformation, medium deformation, severe deformation and dangerous deformation.

[0017] Preferably, the hydrogen leakage analysis module is communicatively connected with the deformation monitoring module and the hydrogen sensor, and the working method of the hydrogen leakage analysis module is:

[0018] 4-1) When the hydrogen concentration value C0 monitored by the hydrogen sensor is not higher than the threshold value T CIf it is determined that there is no hydrogen leakage, continue monitoring; otherwise, determine that there is hydrogen leakage, and then follow the steps below to determine the cause of the leakage;

[0019] Among them, the causes of leakage include battery compartment leakage and other leakages. Other leakages include hydrogen supply pipeline leakage, excess hydrogen recovery pipeline leakage and exhaust emission pipeline leakage.

[0020] 4-2) If the deformation monitoring module determines that there is no deformation or slight deformation, it is determined that there is no hydrogen leakage in the battery compartment and the leakage cause is other leakage. Then, the most probable cause among other leakage causes is further determined according to the following method:

[0021] Start ventilation measures in the installation room and keep it for t1. If the hydrogen concentration value detected by the hydrogen sensor is C0≤T C , judge that the highest probability of other leakage causes is: leakage of exhaust gas pipeline, and issue a first-level warning signal of hydrogen leakage, and continue monitoring;

[0022] Otherwise, stop the ventilation measures first, and then calculate the increase in hydrogen concentration Δ within time t2. Among them, C1 is the hydrogen concentration value when the ventilation measures are just stopped, and C2 is the hydrogen concentration value after the ventilation measures are stopped for t2 time; if Δ>T Δ , judge that the highest probability of other leakage causes is: leakage of hydrogen supply pipeline, and issue a warning signal of hydrogen leakage level 3, immediately stop using, continue to open and maintain ventilation measures; if Δ≤T Δ , the highest probability of other leakage causes is determined to be: leakage of excess hydrogen recovery pipeline, and a secondary warning signal of hydrogen leakage is issued, and monitoring is continued; among them, T Δ is a pre-set threshold;

[0023] 4-2) If the deformation monitoring module determines that the deformation is moderate, severe or dangerous, the cause of the leakage is determined to be leakage from the battery compartment. Ventilation measures are started and maintained in the installation room, and a warning signal of hydrogen leakage level 4 is issued, requiring immediate cessation of use.

[0024] Preferably, t1 = 2-30 min, t2 = 1-15 min, T Δ =1-20%.

[0025] Preferably, the battery compartment is in a rectangular shape, and is fixedly mounted on the bottom surface of the installation chamber through the bottom surface, and detection patterns are arranged on the five side surfaces of the battery compartment except the bottom surface;

[0026] The detection pattern includes a primer background pattern of a first color covering the entire side of the battery compartment and a contrast pattern of a second color arranged on the primer background pattern, wherein the contrast pattern is a plurality of rectangular strip patterns arranged at equal intervals in the horizontal or vertical direction along the side of the battery compartment, and the first color is different from the second color;

[0027] The number of rectangular strip patterns on the sides of all battery compartments is the same, which is n, where n=5-100;

[0028] The deformation monitoring module includes an image acquisition module, an image processing module and a deformation analysis module.

[0029] Preferably, step 1) is specifically:

[0030] 1-1) The image acquisition module acquires complete images of the five sides of the battery compartment except the bottom surface, the five sides are denoted as side i, i = 1, 2, 3, 4, 5, and the complete images of the five sides acquired by the image acquisition module are denoted as P i , that is, the images corresponding to side 1, side 2, side 3, side 4, and side 5 are recorded as P1, P2, P3, P4, and P5 respectively;

[0031] 1-2) the image processing module first performs grayscale processing on all images collected by the image collection module, then performs binarization processing, and finally extracts contours from the obtained binarized images;

[0032] For each image P i After contour extraction, the image P-ROI containing the side edge contour of the battery compartment and the contrasting graphic contour is obtained. i ;

[0033] 1-3) The deformation analysis module compares the image obtained in step 1-2) with the standard image pre-stored internally, and determines the deformation level of the current battery compartment according to the comparison result.

[0034] Preferably, steps 1-3) specifically include:

[0035] 1-3-1) Get the standard image in advance:

[0036] 1-3-1-1) The image acquisition module is used to acquire images of the intact and non-deformed battery compartment installed in the installation room in advance, and the acquired images are used as standard images for comparison;

[0037] The standard image of the five sides of the battery compartment except the bottom is denoted as PB i , i=1,,2,3,4,5, i.e. side 1, side 2, side 3, side 4, side 5 respectively;

[0038] 1-3-1-2) Perform grayscale processing and binarization processing on all standard images in the same way as step 1-2) and then perform contour extraction;

[0039] For image PB i , obtain the standard image PB-ROI containing the side edge contour of the battery compartment and the contrasting graphic contour i ; In the standard image PB-ROI i In the process, the standard contour of each battery compartment side edge and the standard contour of the contrast pattern contour in each battery compartment side are obtained, and the area S of the inner area of ​​the standard contour of each battery compartment side edge is further obtained. PBi , and the distance D between two adjacent rectangular strip patterns in the contrasting pattern on the side i of each battery compartment Bi ;

[0040] 1-3-2) Obtain the image P-ROI obtained in step S2 i The area S of the inner area of ​​the side edge contour of each battery compartment Pi ;

[0041] For each image P-ROI i , obtain the spacing value D at the maximum spacing position between all adjacent rectangular strip graphics in the comparison graphic ij , j = 1, 2, ..., n-1, n is the number of rectangular strip patterns in each contrasting pattern, then n-1 spacing values ​​are obtained for each contrasting pattern, that is, D ij represents the jth spacing value in the comparison graph on the side i of the battery compartment;

[0042] 1-3-3) Deformation level analysis and judgment:

[0043] 1-3-3-1) For all images P-ROI i , if there is at least one image P-ROI i satisfy And all images P-ROI i There are at least k intervals D in ij satisfy: When the deformation level is judged as dangerous deformation, an alarm signal is issued and the user is stopped immediately; where k = 1 to 5, E Dmax 、E S These are all pre-set thresholds;

[0044] Otherwise, go to step 1-3-3-2);

[0045] 1-3-3-2) For all images P-ROI i , if both satisfy And the spacing D between all adjacent rectangular stripsij All meet the following requirements: When the deformation level is judged as: no deformation or slight deformation; E D1 is a pre-set threshold;

[0046] Otherwise, go to step 1-3-3-3);

[0047] 1-3-3-3) For all images P-ROI i , count the distance D between adjacent rectangular strips ij satisfy The number of spacings M, when M≤(0.01~0.1)×5n, the deformation level is judged as: medium deformation;

[0048] Otherwise, the deformation level is judged as severe deformation, and an alarm signal is issued indicating that inspection and maintenance are required;

[0049] Among them, E S =0.01-0.15, E D1 =0.001-0.05, E Dmax =0.1-0.4.

[0050] In a second aspect of the present invention, a hydrogen fuel cell monitoring and management system for a hydrogen-powered two-wheeled vehicle is provided, which uses the above-mentioned method to monitor and manage the hydrogen fuel cell of the hydrogen-powered two-wheeled vehicle, and the system comprises:

[0051] A deformation monitoring module, which performs deformation monitoring on the battery compartment according to the method of step 1);

[0052] a temperature sensor for monitoring the temperature in the installation room;

[0053] A hydrogen sensor for monitoring the hydrogen concentration in the installation room;

[0054] A hydrogen leakage analysis module, which determines whether hydrogen leakage occurs according to the method of step 1), and further analyzes the cause of the leakage when hydrogen leakage occurs;

[0055] And a management control module, which is used to control the cooling and ventilation in the installation room.

[0056] Preferably, the system further comprises an exhaust fan arranged in the installation room, and the installation room is further provided with an exhaust port, and the management control module is connected to the hydrogen leakage analysis module, the temperature sensor and the exhaust fan.

[0057] The beneficial effects of the present invention are:

[0058] The present invention provides a hydrogen fuel cell monitoring and management method and system for hydrogen-powered two-wheeled vehicles. In the present invention, by pre-setting a special detection pattern on the surface of the battery compartment, in combination with a machine vision method, and using a special image processing and image analysis method, the battery compartment deformation detection can be achieved;

[0059] The present invention can also simultaneously detect the temperature of the battery compartment and the hydrogen concentration in the environment surrounding the battery compartment. Furthermore, the present invention can not only realize hydrogen leakage detection by combining the deformation detection results and the hydrogen concentration detection results, but also can further analyze the cause of the leakage, thereby facilitating the adoption of corresponding measures, improving safety, and improving the efficiency of subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a flow chart of the hydrogen fuel cell monitoring and management method for a hydrogen-powered two-wheeled vehicle of the present invention;

[0061] Figure 2 is a detailed flow chart of step 1) of the present invention;

[0062] Figure 3 is a detailed flow chart of step 4) of the present invention;

[0063] Figure 4 The schematic diagram of the hydrogen fuel cell monitoring and management system for a hydrogen-powered two-wheeled vehicle of the present invention is shown in FIG.

[0064] Figure 5 is a principle block diagram of the deformation monitoring module of the present invention;

[0065] Figure 6 It is a schematic diagram of the structure inside the installation chamber in Example 1 of the present invention.

[0066] Description of reference numerals:

[0067] 1—deformation monitoring module; 2—hydrogen leakage analysis module; 3—temperature sensor; 4—hydrogen sensor; 5—management control module; 6—exhaust fan; 11—image acquisition module; 12—image processing module; 13—deformation analysis module;

[0068] 70—installation room; 71—battery compartment; 72—exhaust vent; 73—detection pattern; 74—hydrogen supply pipeline; 75—oxygen supply pipeline; 76—excess hydrogen recovery pipeline; 77—exhaust gas emission pipeline. DETAILED DESCRIPTION

[0069] The present invention is further described in detail below in conjunction with embodiments so that those skilled in the art can implement the invention with reference to the description.

[0070] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0071] The present invention provides a hydrogen fuel cell monitoring and management method for a hydrogen-powered two-wheeled vehicle. The hydrogen fuel cell is arranged in a battery compartment, and the battery compartment is fixedly installed in an installation room arranged on the hydrogen-powered two-wheeled vehicle. Figure 1 , the method comprises the following steps:

[0072] 1) Using a machine vision-based method to monitor the deformation of the battery compartment through the deformation monitoring module 1;

[0073] 2) Monitor the internal temperature through the temperature sensor installed in the installation room, and start cooling measures to cool down the installation room when the temperature is too high;

[0074] 3) Monitor the internal hydrogen concentration through the hydrogen sensor installed in the installation room;

[0075] 4) Through the hydrogen leakage analysis module 2, combined with the results of step 1) and step 3), it is determined whether hydrogen leakage occurs, and if hydrogen leakage occurs, the cause of the leakage is further analyzed and corresponding measures are taken.

[0076] In the present invention, the battery compartment is provided with a hydrogen supply pipeline, an oxygen supply pipeline, an excess hydrogen recovery pipeline and an exhaust gas discharge pipeline connected to the internal hydrogen fuel cell;

[0077] The hydrogen supply pipeline and the oxygen supply pipeline are used to provide the hydrogen and oxygen required for the reaction of the hydrogen fuel cell, respectively. The excess hydrogen recovery pipeline is used to discharge and recover the excess hydrogen entering the hydrogen fuel cell, and the tail gas discharge pipeline is used to discharge the product after the hydrogen fuel cell reaction. Therefore, in the application scenario of the present invention, hydrogen leakage mainly considers the following four factors: battery compartment leakage, hydrogen supply pipeline leakage, excess hydrogen recovery pipeline leakage and tail gas discharge pipeline leakage, among which the main substance in the tail gas discharge pipeline is water or water vapor produced by the reaction, but when the hydrogen reaction in the hydrogen fuel cell is insufficient, the discharged tail gas will contain a certain amount of hydrogen, so when the tail gas discharge pipeline leaks, it may also cause the hydrogen concentration in the installation room to increase. By monitoring and judging the cause of the leakage, on the one hand, it can be conducive to taking more effective solutions, and on the other hand, it can be conducive to improving the efficiency of maintenance.

[0078] In the present invention, the judgment result output by the deformation monitoring module is a deformation grade, which specifically includes: no deformation or slight deformation, medium deformation, severe deformation and dangerous deformation.

[0079] No deformation or slight deformation means that the battery compartment shell is not damaged or basically not damaged, its integrity and sealing will not be destroyed, and the internal battery is not damaged by external force, so it can be considered that there is no leakage risk; while moderate deformation and severe deformation have a certain probability that the integrity and sealing of the battery compartment shell will be destroyed, and the internal battery may also be damaged by external force and there is a certain risk of leakage; dangerous deformation means that the battery compartment shell has a large deformation, which is likely to cause damage to the internal battery, and has a high risk of leakage.

[0080] In the present invention, the hydrogen leakage analysis module is connected to the deformation monitoring module and the hydrogen sensor. Figure 3 , the working method of the hydrogen leak analysis module is:

[0081] 4-1) When the hydrogen concentration value C0 monitored by the hydrogen sensor is not higher than the threshold value T C If the hydrogen concentration does not exceed the set minimum allowable value, it can be considered that there is no leakage.

[0082] Threshold T C Just make a general selection based on the actual situation or requirements, for example, T C 10-100ppm;

[0083] Among them, the leakage causes include battery compartment leakage and other leakages, and other leakages include hydrogen supply pipeline leakage, excess hydrogen recovery pipeline leakage and tail gas emission pipeline leakage; it should be understood that the leakage cause determined in the present invention is actually to analyze the leakage cause with the highest probability, that is, the probability of the leakage cause is reasonably ranked by the scheme of the present invention, so as to serve as a scientific reference for adopting countermeasures and conducting maintenance;

[0084] 4-2) If the deformation monitoring module determines that there is no deformation or slight deformation, it is determined that there is no hydrogen leakage in the battery compartment and the leakage cause is other leakage. Then, the most probable cause among other leakage causes is further determined, specifically according to the following method:

[0085] Start ventilation measures in the installation room and keep it for t1. If the hydrogen concentration value detected by the hydrogen sensor is C0≤T C, judge that the highest probability among other leakage causes is: leakage of exhaust gas pipeline, and issue a first-level warning signal of hydrogen leakage, and continue monitoring (at this time, leakage has occurred, but the battery compartment has no major deformation, indicating that the probability of battery compartment leakage is very small, and it is judged to be other leakage causes; then after a certain period of ventilation, the hydrogen concentration is reduced to the allowable range, indicating that the amount of leakage is very small. Among other leakage causes, under the same or similar damage conditions, the theoretical maximum probability of leakage is: hydrogen supply pipeline leakage> excess hydrogen recovery pipeline leakage> exhaust gas pipeline leakage, so in this case, the probability of exhaust gas pipeline leakage is the highest);

[0086] Otherwise, stop the ventilation measures first, and then calculate the increase in hydrogen concentration Δ within time t2. Among them, C1 is the hydrogen concentration value when the ventilation measures are just stopped, and C2 is the hydrogen concentration value after the ventilation measures are stopped for t2 time; if Δ>T Δ , judge that the highest probability of other leakage causes is: leakage of hydrogen supply pipeline, and issue a warning signal of hydrogen leakage level 3, immediately stop using, continue to open and maintain ventilation measures; if Δ≤T Δ , the highest probability of other leakage causes is determined to be: leakage of excess hydrogen recovery pipeline, and a secondary warning signal of hydrogen leakage is issued, and monitoring is continued; among them, T Δ is a pre-set threshold;

[0087] Combined with the analysis of step 4-2), Δ represents the degree of increase in hydrogen concentration within time t2, Δ>T Δ , indicating that the hydrogen concentration has increased significantly, indicating that the leakage is large, so the probability of leakage from the hydrogen supply pipeline is the highest; Δ≤T Δ , then the probability that the cause is leakage of excess hydrogen recovery pipeline is the highest.

[0088] 4-2) If the deformation monitoring module determines that the deformation is moderate, severe or dangerous, the cause of the leakage is determined to be leakage from the battery compartment. Ventilation measures are started and maintained in the installation room, and a warning signal of hydrogen leakage level 4 is issued, requiring immediate cessation of use.

[0089] In the present invention, the larger the hydrogen leakage level number is, the more serious the leakage is, and the more stringent the response measures need to be. For example, battery compartment leakage is the most serious leakage situation, and it is necessary to maintain ventilation and immediately stop using the hydrogen-powered two-wheeled vehicle.

[0090] In a preferred embodiment, t1 = 2-30 min, t2 = 1-15 min, T Δ =1-20%.

[0091] In a preferred embodiment, the entire hydrogen leakage analysis module is powered by a battery with a charging function, and a hydrogen fuel cell can charge the battery.

[0092] In the present invention, the battery compartment is in a rectangular shape, and is fixedly mounted on the bottom surface of the installation room through the bottom surface, and detection patterns are arranged on the five side surfaces of the battery compartment except the bottom surface;

[0093] The detection pattern includes a primer background pattern using a first color covering the entire side of the battery compartment and a contrast pattern using a second color arranged on the primer background pattern, the contrast pattern being a plurality of rectangular strip patterns arranged at equal intervals in the horizontal or vertical direction along the side of the battery compartment, and the first color is different from the second color;

[0094] The entire side of the battery compartment is set to the first color, and the first color is different from the second color, so that when the image is processed later, it is easier to obtain the image of the detection pattern from the side of the battery compartment in the binary image. It is better if the first color is different from the background color of the installation room. For example, if the background color of the installation room is gray, the first color is white and the second color is red.

[0095] The number of rectangular strip patterns on the sides of all battery compartments is the same, which is n, n = 5-100, for example n = 10, n = 20, n = 50, or n = 80. The selection of n should take into account factors such as the area of ​​the battery compartment side and the required detection accuracy. The larger the area, the larger the number of n that can be selected. The larger the number of n, the higher the accuracy of subsequent battery compartment deformation detection and judgment will be, but the amount of calculation will also be greater, so it can be selected according to specific needs.

[0096] Reference Figure 5 The deformation monitoring module 1 includes an image acquisition module 11 , an image processing module 12 and a deformation analysis module 13 .

[0097] In the present invention, the image acquisition module can use a conventional image acquisition device that can acquire images in real time in the environment of the installation room, such as a small industrial camera or a micro industrial camera. In order to ensure the image acquisition effect, a light source can be configured or a micro industrial camera with its own light source can be used. However, the image acquisition device needs to be able to be used in the environment of the installation room. The number of image acquisition devices is determined by being able to meet the above-mentioned image acquisition requirements. Generally speaking, 3-5 images of the remaining 5 sides of the battery compartment are usually required, depending on the viewing angle coverage capability of the image acquisition device.

[0098] In a preferred embodiment, the entire deformation monitoring module is powered by a battery with a charging function, and a hydrogen fuel cell can charge the battery.

[0099] Reference Figure 2In the present invention, step 1) is specifically:

[0100] 1-1) The image acquisition module acquires complete images of the five sides of the battery compartment except the bottom surface. The five sides are denoted as side i, i=1, 2, 3, 4, 5. The complete images of the five sides acquired by the image acquisition module are denoted as Pi, that is, the images corresponding to side 1, side 2, side 3, side 4, and side 5 are denoted as P1, P2, P3, P4, and P5 respectively;

[0101] In a preferred embodiment, the image acquisition module performs image acquisition in a periodic manner to reduce the amount of data processing; the acquisition period is selected according to actual needs, for example, the period is 1 minute, 5 minutes, 10 minutes, or 30 minutes. Theoretically, the shorter the period, the better the security can be guaranteed, but the larger the amount of data processing and the higher the energy consumption, so a reasonable selection is made according to actual needs;

[0102] 1-2) The image processing module first performs grayscale processing on all images collected by the image collection module, then performs binarization processing, and finally extracts contours from the obtained binary images; wherein the contour extraction can be implemented by a conventional edge detection algorithm, such as the Canny algorithm, the Sobel algorithm, etc., which is not specifically limited in the present invention;

[0103] For each image P i After contour extraction, the image P-ROI containing the side edge contour of the battery compartment and the contrasting graphic contour is obtained. i ;

[0104] 1-3) The deformation analysis module compares the image obtained in step 1-2) with the standard image pre-stored internally, and determines the deformation level of the current battery compartment based on the comparison result.

[0105] Steps 1-3) specifically include:

[0106] 1-3-1) Get the standard image in advance:

[0107] 1-3-1-1) The image acquisition module is used to acquire images of the intact and non-deformed battery compartment installed in the installation room in advance, and the acquired images are used as standard images for comparison;

[0108] The standard image of the five sides of the battery compartment except the bottom is denoted as PB i , i=1,,2,3,4,5, i.e. side 1, side 2, side 3, side 4, side 5 respectively;

[0109] 1-3-1-2) Perform grayscale processing and binarization processing on all standard images in the same way as step 1-2) and then perform contour extraction;

[0110] For image PB i , obtain the standard image PB-ROI containing the side edge contour of the battery compartment and the contrasting graphic contour i ; In the standard image PB-ROI i In the process, the standard contour of each battery compartment side edge and the standard contour of the contrast pattern contour in each battery compartment side are obtained, and the area S of the inner area of ​​the standard contour of each battery compartment side edge is further obtained. PBi , and the distance D between two adjacent rectangular strip patterns in the contrasting pattern on the side i of each battery compartment Bi ;

[0111] Since several rectangular strips in the contrast image are arranged at equal intervals, the standard image PB-ROI i In the figure, the spacing between all two adjacent rectangular strips is the same;

[0112] 1-3-2) Obtain the image P-ROI obtained in step S2 i The area S of the inner area of ​​the side edge contour of each battery compartment Pi ;

[0113] For each image P-ROI i , obtain the spacing value D at the maximum spacing position between all adjacent rectangular strip graphics in the comparison graphic ij , j = 1, 2, ..., n-1, n is the number of rectangular strip patterns in each contrasting pattern, then n-1 spacing values ​​are obtained for each contrasting pattern, that is, D ij represents the jth spacing value in the comparison graph on the side i of the battery compartment;

[0114] That is to say, for the selection of the spacing value between any two adjacent rectangular strip patterns, the distance value at the position with the maximum spacing is selected as the spacing value; when no deformation occurs, the spacing between the two rectangular strip patterns is equal in all directions, and after the battery compartment is deformed, the stretching, folding or twisting of the surface will cause the spacing at different positions to be different. By comparing the distance value at the position with the maximum spacing with the standard spacing value, it can be determined whether deformation occurs, and the larger the distance value at the position with the maximum spacing, the more serious the deformation;

[0115] 1-3-3) Deformation level analysis and judgment:

[0116] 1-3-3-1) For all images P-ROI i , if there is at least one image P-ROI i satisfy And all images P-ROI i There are at least k intervals D in ij satisfy: When the deformation level is judged as dangerous deformation, an alarm signal is issued and the user is stopped immediately; where k = 1 to 5, E Dmax 、E S These are all pre-set thresholds;

[0117] Otherwise, go to step 1-3-3-2);

[0118] This indicates that the battery compartment as a whole has undergone significant deformation. This indicates that a large deformation has occurred in a local area on the side of the battery compartment, which indicates that there is a dangerous deformation. The more the number of positions (i.e., k value) is, the greater the probability of dangerous deformation is. In a preferred embodiment, k=2 or 3;

[0119] 1-3-3-2) For all images P-ROI i , if both satisfy And the spacing D between all adjacent rectangular strips ij All meet the following requirements: When the deformation level is judged as: no deformation or slight deformation; E D1 is a preset threshold value; this indicates that the overall deformation of the battery compartment is relatively small, and there is no obvious deformation in the local area;

[0120] Otherwise, proceed to step 1-3-3-3);

[0121] 1-3-3-3) For all images P-ROI i , count the distance D between adjacent rectangular strips ij satisfy The number of spacings M, when M≤(0.01~0.1)×5n, the deformation level is judged as: medium deformation;

[0122] Otherwise, the deformation level is judged as severe deformation, and an alarm signal is issued indicating that inspection and maintenance are required;

[0123] satisfy The spacing Dij represents that obvious local deformation has occurred, but the local deformation has not reached a large degree. At this time, according to the value of the number of spacings M1 that meet this situation, it is judged whether it is medium deformation or severe deformation. Therefore, a threshold value needs to be set. M1≤this threshold value represents a small number, which can be considered as medium deformation, and M1 is greater than or equal to this threshold value, which represents that the number reaches a certain degree, and it should be judged as severe deformation. At this time, the value of M1 needs to be selected according to the value of n and actual needs. In the present invention, the threshold value is (0.01~0.1)*5n, for example, it can be 0.01*5n, 0.05*5n, or 0.1*5n.

[0124] In the present invention, E S =0.01-0.15, E D1 =0.001-0.05, E Dmax =0.1-0.4.

[0125] In the present invention, the warning signals including hydrogen leakage and battery compartment deformation can be broadcasted by voice, and / or synchronously displayed on the display screen at the front of the hydrogen-powered electric vehicle or other conspicuous positions; at the same time, they can also be uploaded to the cloud and synchronously sent from the cloud to the user receiving end, which can be an APP installed on the mobile phone of the hydrogen-powered two-wheeled vehicle user.

[0126] The present invention also provides a hydrogen fuel cell monitoring and management system for a hydrogen-powered two-wheeled vehicle, which is used to execute the above method. The system uses the above method to monitor and manage the hydrogen fuel cell of the hydrogen-powered two-wheeled vehicle. The system comprises:

[0127] A deformation monitoring module, which performs deformation monitoring on the battery compartment according to the method of step 1);

[0128] a temperature sensor for monitoring the temperature in the installation room;

[0129] A hydrogen sensor for monitoring the hydrogen concentration in the installation room;

[0130] The hydrogen leakage analysis module determines whether hydrogen leakage occurs according to the method of step 1), and further analyzes the cause of the leakage when hydrogen leakage occurs.

[0131] And a management control module, which is used to control the opening of the exhaust fan to achieve cooling and ventilation in the installation room.

[0132] In a preferred embodiment, the system further comprises an exhaust fan arranged in the installation room, an air inlet is arranged in the installation room, the exhaust fan is arranged on the air inlet, and an exhaust port is also arranged on the installation room, and external air is introduced and internal air is discharged by the exhaust fan, thereby achieving cooling and ventilation. The management control module is connected to the hydrogen leakage analysis module, the temperature sensor, and the exhaust fan. By controlling the operation of the exhaust fan, the purpose of cooling and reducing the hydrogen concentration can be achieved at the same time, that is, the cooling measures and ventilation measures in the above method are both achieved by turning on the exhaust fan.

[0133] The above is the overall concept of the present invention, and detailed embodiments and comparative examples are provided below on the basis of the overall concept of the present invention to further illustrate the present invention.

[0134] Example 1

[0135] A hydrogen fuel cell monitoring and management method for a hydrogen-powered two-wheeled vehicle, wherein the hydrogen fuel cell is arranged in a battery compartment, referring to Figure 6The battery 71 is fixedly installed in an installation chamber 70 provided on the hydrogen-powered two-wheeled vehicle, and the method comprises the following steps:

[0136] 1) The deformation monitoring module is used to monitor the deformation of the battery compartment using a machine vision-based method;

[0137] 2) Monitor the internal temperature through the temperature sensor installed in the installation room, and start cooling measures to cool down the installation room when the temperature is too high;

[0138] 3) Monitor the internal hydrogen concentration through the hydrogen sensor installed in the installation room;

[0139] 4) Through the hydrogen leakage analysis module, combined with the results of step 1) and step 3), determine whether hydrogen leakage occurs, and if hydrogen leakage occurs, further analyze the cause of the leakage and take corresponding measures.

[0140] In this embodiment, the battery compartment 71 is provided with a hydrogen supply pipeline 74, an oxygen supply pipeline 75, an excess hydrogen recovery pipeline 76 and an exhaust gas exhaust pipeline 77 connected to the internal hydrogen fuel cell;

[0141] The hydrogen supply pipeline 74 and the oxygen supply pipeline 75 are used to provide the hydrogen and oxygen required for the reaction of the hydrogen fuel cell respectively, the excess hydrogen recovery pipeline 76 is used to discharge and recover the excess hydrogen entering the hydrogen fuel cell, and the exhaust gas exhaust pipeline 77 is used to discharge the products after the hydrogen fuel cell reaction.

[0142] In this embodiment, the judgment result output by the deformation monitoring module is a deformation level, which specifically includes: no deformation or slight deformation, medium deformation, severe deformation and dangerous deformation.

[0143] In this embodiment, the hydrogen leakage analysis module is in communication connection with the deformation monitoring module and the hydrogen sensor, and the working method of the hydrogen leakage analysis module is as follows:

[0144] 4-1) When the hydrogen concentration value C0 monitored by the hydrogen sensor is not higher than the threshold value T C If the hydrogen concentration does not exceed the set minimum allowable value, it can be considered that there is no leakage.

[0145] Threshold T C Just make a regular selection according to the actual situation or requirements. For example, in this embodiment, select T C 20ppm;

[0146] Among them, the causes of leakage include battery compartment leakage and other leakages. Other leakages include hydrogen supply pipeline leakage, excess hydrogen recovery pipeline leakage and exhaust emission pipeline leakage.

[0147] 4-2) If the deformation monitoring module determines that there is no deformation or slight deformation, it is determined that there is no hydrogen leakage in the battery compartment and the leakage cause is other leakage. Then, the most probable cause among other leakage causes is further determined according to the following method:

[0148] Start ventilation measures in the installation room and keep it for t1. If the hydrogen concentration value detected by the hydrogen sensor is C0≤T C , judge that the highest probability of other leakage causes is: leakage of exhaust gas pipeline, and issue a first-level warning signal of hydrogen leakage, and continue monitoring;

[0149] Otherwise, stop the ventilation measures first, and then calculate the increase in hydrogen concentration Δ within time t2. Among them, C1 is the hydrogen concentration value when the ventilation measures are just stopped, and C2 is the hydrogen concentration value after the ventilation measures are stopped for t2 time; if Δ>T Δ , judge that the highest probability of other leakage causes is: leakage of hydrogen supply pipeline, and issue a warning signal of hydrogen leakage level 3, immediately stop using, continue to open and maintain ventilation measures; if Δ≤T Δ , the highest probability of other leakage causes is determined to be: leakage of excess hydrogen recovery pipeline, and a secondary warning signal of hydrogen leakage is issued, and monitoring is continued; among them, T Δ is a pre-set threshold;

[0150] 4-2) If the deformation monitoring module determines that the deformation is moderate, severe or dangerous, the cause of the leakage is determined to be leakage from the battery compartment. Ventilation measures are started and maintained in the installation room, and a warning signal of hydrogen leakage level 4 is issued, requiring immediate cessation of use.

[0151] In this embodiment, t1 = 10 min, t2 = 3 min, T Δ =5%.

[0152] In this embodiment, the entire hydrogen leakage analysis module is powered by a battery with a charging function, and a hydrogen fuel cell can charge the battery.

[0153] In this embodiment, the battery compartment 71 is rectangular, and is fixedly mounted on the bottom surface of the installation room through the bottom surface. The five side surfaces of the battery compartment except the bottom surface are provided with detection patterns 73;

[0154] The detection pattern includes a primer background pattern using a first color covering the entire side of the battery compartment and a contrast pattern using a second color arranged on the primer background pattern, the contrast pattern being a plurality of rectangular strip patterns arranged at equal intervals in the horizontal or vertical direction along the side of the battery compartment, and the first color is different from the second color;

[0155] In this embodiment, the background color of the installation room is gray, the first color is white, and the second color is red.

[0156] In this embodiment, the number of rectangular strip patterns on the side surfaces of all battery compartments is the same, which is n, where n=10.

[0157] The deformation monitoring module includes an image acquisition module, an image processing module and a deformation analysis module.

[0158] The image acquisition module can use a conventional image acquisition device that can acquire images in real time in the environment of the installation room, such as a small industrial camera or a miniature industrial camera. In order to ensure the image acquisition effect, a light source can be configured or a miniature industrial camera with its own light source can be used. However, the image acquisition device needs to be able to be used in the environment of the installation room. The number of image acquisition devices is determined based on whether it can meet the above-mentioned image acquisition requirements. In this embodiment, one miniature industrial camera is correspondingly provided on each of the remaining five sides of the battery compartment to ensure the image acquisition effect.

[0159] In a preferred embodiment, the entire deformation monitoring module is powered by a battery with a charging function, and a hydrogen fuel cell can charge the battery.

[0160] In the present invention, step 1) is specifically:

[0161] 1-1) The image acquisition module acquires complete images of the five sides of the battery compartment except the bottom surface. The five sides are denoted as side i, i = 1, 2, 3, 4, 5. The complete images of the five sides acquired by the image acquisition module are denoted as P i , that is, the images corresponding to side 1, side 2, side 3, side 4, and side 5 are recorded as P1, P2, P3, P4, and P5 respectively;

[0162] The image acquisition module performs image acquisition in a periodic manner to reduce the amount of data processing; the acquisition period is selected according to actual needs, for example, in this embodiment, the period is 5 minutes;

[0163] 1-2) The image processing module first performs grayscale processing on all images collected by the image collection module, then performs binarization processing, and finally extracts contours from the obtained binary images; in this embodiment, contour extraction is implemented using the Canny algorithm;

[0164] For each image P i After contour extraction, the image P-ROI containing the side edge contour of the battery compartment and the contrasting graphic contour is obtained. i ;

[0165] 1-3) The deformation analysis module compares the image obtained in step 1-2) with the standard image pre-stored internally, and determines the deformation level of the current battery compartment based on the comparison result.

[0166] Steps 1-3) specifically include:

[0167] 1-3-1) Get the standard image in advance:

[0168] 1-3-1-1) The image acquisition module is used to acquire images of the intact and non-deformed battery compartment installed in the installation room in advance, and the acquired images are used as standard images for comparison;

[0169] The standard image of the five sides of the battery compartment except the bottom is denoted as PB i , i=1,2,3,4,5, i.e., side 1, side 2, side 3, side 4, side 5 respectively;

[0170] 1-3-1-2) Perform grayscale processing and binarization processing on all standard images in the same way as step 1-2) and then perform contour extraction;

[0171] For image PB i , obtain the standard image PB-ROI containing the side edge contour of the battery compartment and the contrasting graphic contour i ; In the standard image PB-ROI i In the process, the standard contour of each battery compartment side edge and the standard contour of the contrast pattern contour in each battery compartment side are obtained, and the area S of the inner area of ​​the standard contour of each battery compartment side edge is further obtained. PBi , and the distance D between two adjacent rectangular strip patterns in the contrasting pattern on the side i of each battery compartment Bi ;

[0172] Since several rectangular strips in the contrast image are arranged at equal intervals, the standard image PB-ROI i In the figure, the spacing between all two adjacent rectangular strips is the same;

[0173] 1-3-2) Obtain the image P-ROI obtained in step S2 i The area S of the inner area of ​​the side edge contour of each battery compartment Pi ;

[0174] For each image P-ROI i , obtain the spacing value D at the maximum spacing position between all adjacent rectangular strip graphics in the comparison graphic ij , j = 1, 2, ..., n-1, n is the number of rectangular strip patterns in each contrasting pattern, then n-1 spacing values ​​are obtained for each contrasting pattern, that is, Dij represents the jth spacing value in the comparison graph on the side i of the battery compartment;

[0175] 1-3-3) Deformation level analysis and judgment:

[0176] 1-3-3-1) For all images P-ROI i , if there is at least one image P-ROI i satisfy And all images P-ROI i There are at least k intervals D in ij satisfy: When the deformation level is judged as dangerous deformation, an alarm signal is issued and the user is stopped immediately; where k = 2, E Dmax 、E S These are all pre-set thresholds;

[0177] Otherwise, go to step 1-3-3-2);

[0178] 1-3-3-2) For all images P-ROI i , if both satisfy And the spacing D between all adjacent rectangular strips ij All meet the following requirements: When the deformation level is judged as: no deformation or slight deformation; E D1 is a pre-set threshold;

[0179] Otherwise, go to step 1-3-3-3);

[0180] 1-3-3-3) For all images P-ROI i , count the distance D between adjacent rectangular strips ij satisfy The number of spacings M, when M≤5, the deformation level is judged as: medium deformation;

[0181] Otherwise, the deformation level is judged as severe deformation, and an alarm signal is issued indicating that inspection and maintenance are required;

[0182] In this embodiment, E S =0.15, E D1 =0.01, E Dmax =0.2.

[0183] In this embodiment, the warning signals including hydrogen leakage and battery compartment deformation are broadcasted by voice and simultaneously displayed in text on a display screen at the front of the hydrogen-powered electric vehicle or other conspicuous locations.

[0184] This embodiment also provides a hydrogen fuel cell monitoring and management system for a hydrogen-powered two-wheeled vehicle, which is used to execute the above method, referring to Figure 4 The system uses the above method to monitor and manage the hydrogen fuel cell of the hydrogen two-wheeled vehicle. The system includes:

[0185] A deformation monitoring module 1, which performs deformation monitoring on the battery compartment according to the method of step 1);

[0186] A temperature sensor 3, which is used to monitor the temperature in the installation room;

[0187] A hydrogen sensor 4, which is used to monitor the hydrogen concentration in the installation room;

[0188] The hydrogen leakage analysis module 2 determines whether hydrogen leakage occurs according to the method of step 1), and further analyzes the cause of the leakage when hydrogen leakage occurs.

[0189] And a management control module 5, which is used to control the opening of the exhaust fan 6 to achieve cooling and ventilation in the installation room.

[0190] In this embodiment, refer to Figure 6 The system also includes an exhaust fan 6 arranged in the installation room, an air inlet is arranged in the installation room, the exhaust fan 6 is arranged on the air inlet, and an exhaust port 72 is also arranged on the installation room, and the exhaust fan 6 introduces external air and exhausts internal air to achieve cooling and ventilation. The management control module is connected to the hydrogen leakage analysis module, the temperature sensor, and the exhaust fan. By controlling the exhaust fan to work, the purpose of cooling and reducing the hydrogen concentration can be achieved at the same time, that is, the cooling measures and ventilation measures in the above method are both achieved by turning on the exhaust fan.

[0191] The management system and method of Example 1 were applied to several hydrogen-powered two-wheeled vehicles for actual use, and then the occurrence of hydrogen leakage within a period of time was counted, and a total of 177 hydrogen leakage accidents were counted. The leakage causes in the judgment results of the management system of Example 1 were recorded as the judgment results of Example 1, and the actual leakage causes of each leakage accident were manually checked and recorded as the actual results. All statistical situations are summarized in the following Table 1:

[0192] Table 1

[0193]

[0194] It can be seen from the statistical results in Table 1 that the probability that the monitoring results of Example 1 are consistent with the actual results is very high, indicating that Example 1 has a very high monitoring accuracy.

[0195] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to specific details.

Claims

1. A method for monitoring and managing a hydrogen fuel cell for a hydrogen-powered two-wheeled vehicle, characterized in that: The hydrogen fuel cell is arranged in a battery compartment, and the battery compartment is fixedly installed in an installation room arranged on a hydrogen-powered two-wheeled vehicle. The method comprises the following steps: 1) The deformation monitoring module uses a machine vision-based method to monitor the deformation of the battery compartment; 2) monitoring the internal temperature by means of a temperature sensor disposed in the installation room, and taking cooling measures to cool the installation room when the temperature is too high; 3) monitoring the internal hydrogen concentration by a hydrogen sensor disposed in the installation chamber; 4) Through the hydrogen leakage analysis module, combined with the results of step 1) and step 3), determine whether hydrogen leakage occurs, and further analyze the cause of the leakage if hydrogen leakage occurs, and take corresponding measures; The hydrogen leakage analysis module is in communication connection with the deformation monitoring module and the hydrogen sensor, and the working method of the hydrogen leakage analysis module is as follows: 4-1) When the hydrogen concentration value C0 monitored by the hydrogen sensor is not higher than the threshold value T C If it is determined that there is no hydrogen leakage, continue monitoring; otherwise, it is determined that there is hydrogen leakage, and then follow the steps below to determine the cause of the leakage; Among them, the causes of leakage include battery compartment leakage and other leakages. Other leakages include hydrogen supply pipeline leakage, excess hydrogen recovery pipeline leakage and exhaust emission pipeline leakage. 4-2) If the deformation monitoring module determines that there is no deformation or slight deformation, it is determined that there is no hydrogen leakage in the battery compartment and the leakage cause is other leakage. Then, the most probable cause among other leakage causes is further determined according to the following method: Start ventilation measures in the installation room and keep it for t1. If the hydrogen concentration value detected by the hydrogen sensor is C0≤T C , judge that the highest probability of other leakage causes is: leakage of exhaust gas pipeline, and issue a first-level warning signal of hydrogen leakage, and continue monitoring; Otherwise, stop the ventilation measures first, and then calculate the increase in hydrogen concentration Δ within time t2. ; Where C1 is the hydrogen concentration value when the ventilation measures are just stopped, and C2 is the hydrogen concentration value after the ventilation measures are stopped for t2 time; if Δ>T Δ , judge that the highest probability of other leakage causes is: leakage of hydrogen supply pipeline, and issue a warning signal of hydrogen leakage level 3, immediately stop using, continue to open and maintain ventilation measures; if Δ≤T Δ , the highest probability of other leakage causes is determined to be: leakage of excess hydrogen recovery pipeline, and a secondary warning signal of hydrogen leakage is issued, and monitoring is continued; among them, T Δ is a pre-set threshold; 4-3) If the deformation monitoring module determines that the deformation is moderate, severe or dangerous, the cause of the leakage is determined to be leakage from the battery compartment. Ventilation measures are taken in the installation room and maintained. At the same time, a warning signal of hydrogen leakage level 4 is issued, requiring immediate stop of use. The battery compartment is in a rectangular shape and is fixedly mounted on the bottom surface of the installation chamber through the bottom surface. The five side surfaces of the battery compartment except the bottom surface are provided with detection patterns; The detection pattern includes a primer background pattern of a first color covering the entire side of the battery compartment and a contrast pattern of a second color arranged on the primer background pattern, wherein the contrast pattern is a plurality of rectangular strip patterns arranged at equal intervals in the horizontal or vertical direction along the side of the battery compartment, and the first color is different from the second color; The number of rectangular strip patterns on the sides of all battery compartments is the same, which is n, where n=5-100; The deformation monitoring module includes an image acquisition module, an image processing module and a deformation analysis module; Step 1) is as follows: 1-1) The image acquisition module acquires complete images of the five sides of the battery compartment except the bottom surface, and the five sides are denoted as side i, i=1, 2, 3, 4, 5. The complete images of the five sides acquired by the image acquisition module are denoted as P i , that is, the images corresponding to side 1, side 2, side 3, side 4, and side 5 are recorded as P1, P2, P3, P4, and P5 respectively; 1-2) The image processing module first performs grayscale processing on all images collected by the image collection module, then performs binarization processing, and finally extracts contours from the obtained binary images; For each image P i After contour extraction, the image P-ROI containing the side edge contour of the battery compartment and the contrasting graphic contour is obtained. i ; 1-3) The deformation analysis module compares the image obtained in step 1-2) with the standard image pre-stored internally, and determines the deformation level of the current battery compartment according to the comparison result; Steps 1-3) specifically include: 1-3-1) Get the standard image in advance: 1-3-1-1) Use the image acquisition module to collect images of the intact and non-deformed battery compartment installed in the installation room in advance, and use the collected images as standard images for comparison; The standard image of the five sides of the battery compartment except the bottom is denoted as PB i , i=1,2,3,4,5, i.e. side 1, side 2, side 3, side 4, side 5 respectively; 1-3-1-2) Perform grayscale processing and binarization processing on all standard images in the same way as step 1-2) and then perform contour extraction; For image PB i , obtain the standard image PB-ROI containing the battery compartment side edge contour and contrast pattern contour i ; In the standard image PB-ROI i In the process, the standard contour of each battery compartment side edge and the standard contour of the contrast pattern contour in each battery compartment side are obtained, and the area S of the inner area of ​​the standard contour of each battery compartment side edge is further obtained. PBi , and the distance D between two adjacent rectangular strip patterns in the contrasting pattern on the side i of each battery compartment Bi ; 1-3-2) Get the image P-ROI obtained in step S2 i The area S of the inner area of ​​the side edge contour of each battery compartment Pi ; For each image P-ROI i , obtain the spacing value D at the maximum spacing position between all adjacent rectangular strip graphics in the comparison graphic ij , j = 1, 2, ..., n-1, n is the number of rectangular strip patterns in each contrasting pattern, then n-1 spacing values ​​are obtained for each contrasting pattern, that is, D ij represents the jth spacing value in the comparison graph on the side i of the battery compartment; 1-3-3) Deformation level analysis and judgment: 1-3-3-1) For all images P-ROI i , if there is at least one image P-ROI i satisfy , and all images P-ROI i There are at least k intervals D in ij satisfy: When the deformation level is judged as dangerous deformation, an alarm signal is issued and the user is stopped immediately; where k = 1~5, E Dmax 、E S These are all pre-set thresholds; Otherwise go to step 1-3-3-2); 1-3-3-2) For all images P-ROI i , if both satisfy , and the spacing between all adjacent rectangular strip patterns is D ij All meet the following requirements: When the deformation level is judged as: no deformation or slight deformation; E D1 is a pre-set threshold; Otherwise go to step 1-3-3-3); 1-3-3-3) For all images P-ROI i , count the distance D between adjacent rectangular strips ij satisfy The number of spacings M, when M≤(0.01~0.1)×5n, the deformation level is judged as: medium deformation; Otherwise, the deformation level is judged as severe deformation, and an alarm signal is issued indicating that inspection and maintenance are required; Among them, E S =0.01-0.15, E D1 =0.001-0.05, E Dmax =0.1-0.

4.

2. The hydrogen fuel cell monitoring and management method for a hydrogen-powered two-wheeled vehicle according to claim 1, characterized in that: The battery compartment is provided with a hydrogen supply pipeline, an oxygen supply pipeline, an excess hydrogen recovery pipeline and an exhaust gas exhaust pipeline connected to the hydrogen fuel cell inside; The hydrogen supply pipeline and the oxygen supply pipeline are used to provide the hydrogen fuel cell with the hydrogen and oxygen required for the reaction respectively, the excess hydrogen recovery pipeline is used to discharge and recover the excess hydrogen entering the hydrogen fuel cell, and the tail gas exhaust pipeline is used to discharge the products after the hydrogen fuel cell reaction.

3. The hydrogen fuel cell monitoring and management method for a hydrogen-powered two-wheeled vehicle according to claim 2, characterized in that: The judgment result output by the deformation monitoring module is a deformation grade, which specifically includes: no deformation or slight deformation, medium deformation, severe deformation and dangerous deformation.

4. The method for monitoring and managing a hydrogen fuel cell for a hydrogen-powered two-wheeled vehicle according to claim 1, characterized in that: in, t1=2-30min,t2=1-15min,T Δ =1-20%。 5. A hydrogen fuel cell monitoring and management system for a hydrogen-powered two-wheeled vehicle, characterized in that: The method according to any one of claims 1 to 4 is used to monitor and manage the hydrogen fuel cell of the hydrogen-powered two-wheeled vehicle, and the system comprises: A deformation monitoring module, which performs deformation monitoring on the battery compartment according to the method of step 1); a temperature sensor for monitoring the temperature in the installation room; A hydrogen sensor for monitoring the hydrogen concentration in the installation room; A hydrogen leakage analysis module, which determines whether a hydrogen leakage occurs according to the method in step 1), and further analyzes the cause of the leakage when a hydrogen leakage occurs; And a management control module, which is used to control the cooling and ventilation in the installation room.

6. The hydrogen fuel cell monitoring and management system for hydrogen-powered two-wheeled vehicles according to claim 5, characterized in that: The system also includes an exhaust fan arranged in the installation room. The installation room is also provided with an exhaust port. The management control module is connected to the hydrogen leakage analysis module, the temperature sensor and the exhaust fan.

Images