A hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions

Abstract

The present invention discloses a hydrogen-powered two-wheeled vehicle with a battery compartment flip and deformation detection and warning function. The hydrogen-powered two-wheeled vehicle includes a hydrogen-powered two-wheeled vehicle body, a hydrogen fuel cell disposed on the hydrogen-powered two-wheeled vehicle body, and a flip and deformation detection and warning system. The flip and deformation detection unit uses an image processing-based method to detect and judge battery compartment flip and deformation. The humidity detection unit detects the humidity within the battery installation cavity. A first analysis and warning unit determines whether the battery compartment has a flip risk or has flipped, as well as the degree of deformation of the battery compartment, based on the detection results of the flip and deformation detection unit. A second analysis and warning unit determines whether the battery compartment has a leakage risk based on the detection results of the humidity detection unit and the judgment results of the first analysis and warning unit. The present invention can promptly detect safety hazards of the hydrogen fuel cell system and take corresponding measures, thereby better ensuring the use effect and safety of the hydrogen-powered two-wheeled vehicle.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen energy technology, and in particular to a hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and early warning functions. Background Art

[0002] Electric two-wheelers effectively address the pain points of short-distance travel. The development of new industries like food delivery and express delivery has fueled demand for electric two-wheelers, making them a promising long-term growth target. Currently, electric two-wheelers on the market primarily use lithium batteries, which can lead to long charging times, short range, recycling pollution, and thermal runaway. Hydrogen-powered electric vehicles, powered by hydrogen fuel cells, offer fast charging times, a range of typically 80-100 km, and are safer to use, making them an ideal choice for low-carbon, environmentally friendly travel.

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

[0004] To improve safety and ensure stable operation, hydrogen fuel cells are typically installed in a structurally robust battery compartment when used in electric two-wheeled vehicles. This compartment completely encloses the batteries, acting as a physical barrier and offering dust, water, and fire resistance, ensuring safe battery operation. The hydrogen and oxygen required for the fuel cell's operation are delivered to the compartment via pipelines. Water produced during operation also needs to be removed from the compartment through a drainage system.

[0005] Although the battery compartment can provide good protection for hydrogen fuel cells, hydrogen electric two-wheeled vehicles cannot stop stably like four-wheeled vehicles, especially two-wheeled vehicles for shared use, which are prone to frequent falls or other external damage. Hydrogen fuel cells produce water during operation (water vapor or liquid water is produced during operation, mainly depending on its operating temperature, pressure, etc. Water vapor condenses into liquid water under the cooling effect of the hydrogen fuel cell's cooling system), so a drainage system is required to drain the water out of the battery compartment. When the battery compartment is deformed by external forces, it may cause the internal batteries, drainage systems, etc. to be damaged, leading to further risk of leakage (water vapor will also condense into liquid water after leakage). Leakage may aggravate battery damage, cause short circuit failures and cause safety accidents. In addition, the working environment of hydrogen electric two-wheeled vehicles makes it easy for water outside to penetrate into the battery, causing excessive internal humidity and affecting the operation of the hydrogen fuel cell or posing a safety hazard.

[0006] Therefore, for hydrogen-powered electric two-wheelers, deformation and rollover detection of the battery compartment is essential. When deformation and rollover occur, timely repair or replacement can reduce safety incidents. Early repair and subsequent use can also reduce hardware wear. Humidity monitoring and control, as well as leakage detection, can also reduce safety risks for hydrogen fuel cells and ensure their proper operation.

[0007] Therefore, it is now necessary to develop a hydrogen-powered electric two-wheeled vehicle that can realize the flipping and deformation detection of the battery compartment, as well as the detection and control of the humidity of the battery working environment and leakage detection. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and early warning functions in response to the above-mentioned deficiencies in the prior art.

[0009] To solve the above technical problems, the present invention adopts the following technical solution: a hydrogen-powered two-wheeled vehicle with a battery compartment flip and deformation detection and warning function, comprising a hydrogen-powered two-wheeled vehicle body, a hydrogen fuel cell disposed on the hydrogen-powered two-wheeled vehicle body, and a flip and deformation detection and warning system; the hydrogen-powered two-wheeled vehicle body is provided with a battery mounting cavity, a battery compartment is fixedly mounted in the battery mounting cavity, and the hydrogen fuel cell is disposed inside the battery compartment;

[0010] The flip and deformation detection and early warning system is used to monitor and warn the flip and deformation of the battery compartment, and to determine whether there is a risk of leakage in the battery compartment.

[0011] The rollover and deformation detection and warning system includes a rollover and deformation detection unit, a humidity detection unit, a first analysis and warning unit, and a second analysis and warning unit;

[0012] The flip and deformation detection unit uses an image processing-based method to detect and judge the flip and deformation of the battery compartment. The humidity detection unit detects the humidity in the battery installation cavity. The first analysis and early warning unit judges whether there is a flip risk or flipping of the battery compartment and the deformation level of the battery compartment based on the detection results of the flip and deformation detection unit. The second analysis and early warning unit judges whether there is a leakage risk in the battery compartment based on the detection results of the humidity detection unit and the judgment results of the first analysis and early warning unit.

[0013] Preferably, the battery compartment is rectangular, and its bottom surface is fixed to the bottom surface of the battery installation cavity by a mounting bracket;

[0014] The bottom surface of the battery compartment is provided with a first detection pattern, and the other five side surfaces are provided with a second detection pattern;

[0015] The first detection pattern is circular or rectangular, and its color is different from the bottom color of the battery compartment.

[0016] Preferably, the second detection pattern includes a primer background pattern of a first color covering the entire side of the battery compartment and a contrasting pattern of a second color arranged on the primer background pattern, and the contrasting 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.

[0017] Preferably, except for the bottom surface of the battery compartment, the number of rectangular strip patterns on all the side surfaces of the battery compartment is the same, which is n, and n=5-100.

[0018] Preferably, the flip and deformation detection unit includes an image acquisition module and an image processing module, and the image acquisition module acquires an image of the area on the bottom surface of the battery compartment including the first detection pattern, as well as complete images of the remaining five side surfaces; the first detection pattern is located in the middle of the bottom surface of the battery compartment, and the middle part of the mounting bracket is hollowed out so that the area where the first detection pattern is located can be acquired by the image acquisition module.

[0019] Preferably, the method for the deformation detection and early warning system to perform battery compartment flipping and deformation monitoring and early warning is:

[0020] S1, the image acquisition module captures an image of the area on the bottom surface of the battery compartment containing the first detection pattern, which is recorded as P1, and captures complete images of the remaining five sides of the battery compartment. The five sides are recorded as side i, where i = 2, 3, 4, 5, and 6. The images corresponding to side 2, side 3, side 4, side 5, and side 6 are recorded as P2, P3, P4, P5, and P6, respectively;

[0021] S2, the image processing module first performs grayscale processing on all images collected by the image collection module, then performs binarization processing, and finally performs contour extraction from the obtained binarized images;

[0022] For the image P1, after contour extraction, an image P-ROI1 containing the contour of the first detection pattern is obtained;

[0023] For image P i , i=2,3,4,5,6, after contour extraction, the image P-ROI containing the battery compartment side edge contour and the contrast graphic contour is obtained i ;

[0024] S3. The first analysis and warning unit compares the image obtained in step S2 with a pre-stored standard image, and determines whether there is a risk of flipping of the current battery compartment or whether flipping has occurred, as well as the deformation level of the battery compartment based on the comparison result;

[0025] The deformation levels in the judgment results include: no deformation or slight deformation, moderate deformation, severe deformation and dangerous deformation;

[0026] S4. The first analysis and warning unit determines whether there is a risk of leakage in the battery compartment based on the humidity detection result of the humidity detection unit and the analysis result of the first analysis and warning unit, and takes corresponding management measures:

[0027] S4-1, when the humidity value RH detected by the humidity detection unit is not greater than the set threshold value T RH When the battery compartment is checked, it is determined that there is no liquid leakage;

[0028] S4-2, when humidity value RH>T RH , and when the first analysis and warning unit determines that there is no deformation or slight deformation, it is determined that there is no risk of liquid leakage in the battery compartment, the dehumidification is turned on, and a warning signal is issued that there is a risk of abnormal drainage in the battery compartment or a risk of water seepage in the battery installation cavity;

[0029] S4-3, when humidity value RH>T RH , and when the first analysis and warning unit determines that the deformation is dangerous, it determines that there is a risk of liquid leakage in the battery compartment and issues a warning signal for liquid leakage and immediate cessation of use;

[0030] S4-4, when humidity value RH>T RH , and when the judgment result of the first analysis and warning unit is medium deformation or severe deformation, the dehumidification is turned on first until the humidity value detected by the humidity detection unit is RH≤T RH Stop when

[0031] If the dehumidification duration exceeds t max After that, the humidity value RH is still greater than TRH , judge that there is a risk of liquid leakage in the battery compartment, and issue a warning signal of liquid leakage, immediately stop using;

[0032] If the dehumidification duration does not exceed t max The humidity value RH is reduced to no more than T RH , then continue to monitor the humidity in the battery installation cavity within T time after the dehumidification is completed. If the humidity value increase rate η is greater than the set threshold value T within T time, η , it is judged that there is a risk of liquid leakage in the battery compartment and an early warning signal of liquid leakage and need for maintenance is issued; otherwise, it is judged that there is no liquid leakage in the battery compartment and an early warning signal of abnormal drainage risk in the battery compartment or water seepage risk in the battery installation cavity is issued;

[0033] Among them, the humidity value increase rate RH max It indicates the maximum value of the humidity in the battery installation cavity detected by the humidity detection unit within the time T after dehumidification is stopped.

[0034] Preferably, wherein t max =5-60min, T η =1%-20%.

[0035] Preferably, step S3 specifically includes:

[0036] S3-1. Pre-acquire standard images:

[0037] S3-1-1. Use the image acquisition module to capture an image of the intact and undeformed battery compartment installed in the battery installation cavity in advance, and use the captured image as a standard image for comparison;

[0038] The standard image of the area where the first detection pattern is located on the bottom surface of the battery compartment is recorded as PB1, and the standard images of the other five side surfaces i are recorded as PB i , i=2,3,4,5,6, which correspond to side 2, side 3, side 4, side 5, and side 6 respectively;

[0039] S3-1-2, perform grayscale processing and binarization processing on all standard images in the same way as step S2, and then perform contour extraction;

[0040] For image PB1, obtain the standard image PB-ROI1 containing the outline of the first detection pattern, obtain the standard outline of the first detection pattern from the standard image PB-ROI1, and obtain the area S of the internal area of the standard outline of the first detection pattern PB-ROI1 ;

[0041] For image PB i, obtain the standard image PB-ROI containing the battery compartment side edge outline and contrast graphic outline i ; In the standard image PB-ROI i In the process, the standard outline of each battery compartment side edge and the standard outline of the contrast pattern outline in each battery compartment side are obtained, and the area S of the inner area of the standard outline of each battery compartment side edge is further obtained. PBi , and the distance D between two adjacent rectangular strip patterns in the second detection pattern on each battery compartment side i Bi ;

[0042] S3-2, obtaining the area S of the inner region of the first detection pattern outline in the image P-ROI1 obtained in step S2 P-ROI1 , and image P-ROI i The area S of the inner area of the side edge contour of each battery compartment Pi ;

[0043] For each image P-ROI i , obtain the spacing value D at the maximum spacing position between all adjacent rectangular strip patterns in the second detection pattern ij , j=1,2,...,n-1, n is the number of rectangular strip patterns in each second detection pattern, then n-1 spacing values are obtained for each second detection pattern, that is, D ij represents the jth spacing value in the second detection pattern on the side i of the battery compartment;

[0044] S3-3. Analysis and judgment:

[0045] S3-3-1. Flip judgment:

[0046] when And for any image P-ROI i , all satisfy When the battery compartment is judged to be at risk of overturning or has overturned, an alarm message is issued to immediately stop use and conduct inspection and maintenance;

[0047] Otherwise proceed to the next step;

[0048] S3-3-2. Deformation level judgment:

[0049] S3-3-2-1. 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 k = 1 to 5, the deformation level is judged as follows: dangerous deformation, an alarm signal is issued, and the user is stopped immediately; E Dmax is a pre-set threshold;

[0050] Otherwise, go to step S3-3-2-2;

[0051] S3-3-2-2. For all images P-ROI i , all satisfy And the spacing D between all adjacent rectangular strips ij All meet the following requirements: When the deformation level is determined, it is: no deformation or slight deformation; E D1 is a pre-set threshold;

[0052] Otherwise, go to step S3-3-2-3;

[0053] S3-3-2-3, for all images P-ROI i , count the distance D between adjacent rectangular strips ij satisfy The number of spacings M1, when M1≤(0.01~0.1)*5n, the deformation level is judged as: medium deformation;

[0054] Otherwise, the deformation level is judged as severe deformation, and an alarm signal is issued indicating that inspection and maintenance are required.

[0055] Preferably, wherein, wherein, E D1 =0.001-0.05, E Dmax =0.1-0.4, E S1 =0.15-0.75, E S2 =0.01-0.15.

[0056] Preferably, the hydrogen two-wheeled vehicle further comprises a driving system, wherein the driving system utilizes the electric energy provided by the hydrogen fuel cell system to provide driving force for the vehicle body.

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

[0058] The present invention provides a hydrogen-powered two-wheeled vehicle with a battery compartment flip and deformation detection and warning function. The vehicle can detect and warn of flipping and deformation of the battery compartment where the hydrogen fuel cell is installed, and determine whether there is a risk of liquid leakage in the battery compartment. Furthermore, the vehicle can detect and control the humidity of the working environment of the battery compartment, thereby promptly identifying potential safety hazards of the hydrogen fuel cell system and taking appropriate measures, thereby better ensuring the use effect and safety of the hydrogen-powered two-wheeled vehicle.

[0059] The rollover and deformation detection and warning system in the present invention cleverly adopts an image processing-based method, and cooperates with the first detection pattern and the second detection pattern pre-set on the surface of the battery compartment to realize the monitoring of the deformation and rollover of the battery compartment. Further combining the humidity detection with the battery compartment deformation results can realize the liquid leakage risk monitoring of the battery compartment, which can facilitate the timely discovery of battery compartment problems and take corresponding measures, and can greatly improve the safety of hydrogen fuel cells in hydrogen-powered two-wheeled vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 This is a principle block diagram of a hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions according to the present invention;

[0061] Figure 2 This is a principle block diagram of the rollover and deformation detection and warning system of the present invention;

[0062] Figure 3 This is a principle block diagram of the flip and deformation detection unit of the present invention;

[0063] Figure 4 A flow chart of a method for the deformation detection and early warning system of the present invention to perform battery compartment flipping and deformation monitoring and early warning;

[0064] Figure 5 is a detailed flow chart of step S4 of the present invention;

[0065] Figure 6 is a detailed flow chart of step S3 of the present invention;

[0066] Figure 7 This is a schematic diagram of the structure inside the battery installation cavity in Example 1 of the present invention;

[0067] Figure 8 Schematic diagram of a first detection pattern on the bottom surface of the battery compartment of the present invention.

[0068] Description of reference numerals:

[0069] 1—Hydrogen two-wheeled vehicle body; 10—Micro-industrial phase; 11—Battery mounting cavity; 12—Mounting bracket; 13—Battery compartment; 14—Fan; 15—Exhaust vent; 16—First detection pattern; 17—Comparison pattern; 18—Humidity sensor;

[0070] 2—Drive system;

[0071] 3—Hydrogen fuel cells;

[0072] 4—flip and deformation detection and warning system; 41—flip and deformation detection unit; 42—humidity detection unit; 43—first analysis and warning unit; 44—second analysis and warning unit; 411—image acquisition module; 412—image processing module. DETAILED DESCRIPTION

[0073] The present invention is further described in detail below with reference to the embodiments so that those skilled in the art can implement the invention with reference to the description.

[0074] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0075] The present invention provides a hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions, referring to Figure 1 The hydrogen-powered two-wheeled vehicle includes a hydrogen-powered two-wheeled vehicle body 1, a hydrogen fuel cell 3 arranged on the hydrogen-powered two-wheeled vehicle body, a rollover and deformation detection and warning system 4, and a drive system 2; a battery installation cavity is provided on the hydrogen-powered two-wheeled vehicle body, a battery compartment is fixedly installed in the battery installation cavity, and the hydrogen fuel cell is arranged inside the battery compartment; the hydrogen fuel cell uses hydrogen to generate electricity, and the drive system uses the electricity provided by the hydrogen fuel cell system to provide driving force for the vehicle body.

[0076] In the present invention, the flip and deformation detection and warning system is used to realize flip and deformation monitoring and early warning of the battery compartment shape, and to determine whether there is a risk of leakage in the battery compartment;

[0077] Reference Figure 2 , the flip and deformation detection and warning system 4 includes a flip and deformation detection unit 41, a humidity detection unit 42, a first analysis and warning unit 43 and a second analysis and warning unit 44;

[0078] The flip and deformation detection unit uses an image processing-based method to detect and judge the flip and deformation of the battery compartment. The humidity detection unit detects the humidity in the battery installation cavity. The first analysis and early warning unit judges whether there is a flip risk or flipping of the battery compartment and the deformation level of the battery compartment based on the detection results of the flip and deformation detection unit. The second analysis and early warning unit judges whether there is a leakage risk in the battery compartment based on the detection results of the humidity detection unit and the judgment results of the first analysis and early warning unit.

[0079] The humidity detection unit may specifically be a humidity sensor 18 .

[0080] The warning signal of the rollover and deformation detection warning system in the present invention can be displayed in text on the display screen at the front of the hydrogen electric vehicle or other conspicuous locations through voice and / or text; it 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 electric vehicle user.

[0081] In the present invention, the battery compartment is rectangular, and its bottom surface is fixed to the bottom surface of the battery installation cavity by a mounting bracket;

[0082] The bottom of the battery compartment is provided with a first detection pattern, and the other five sides are provided with a second detection pattern;

[0083] The first detection pattern is circular or rectangular, and its color is different from the color of the battery compartment bottom surface. The purpose of this color difference is to make it easier to obtain the image of the first detection pattern from the battery compartment bottom surface in the binary image during subsequent image processing. The color of the first detection pattern is selected based on the color of the battery compartment bottom surface. The battery compartment is typically made of metal sheet and is usually dark in color, such as gray or black. The color of the first detection pattern can be selected as white.

[0084] The second detection pattern includes a primer background pattern using a first color that covers the entire side of the battery compartment and a contrast pattern using a second color set on the primer background pattern. The contrast pattern is a number of rectangular strip patterns arranged at equal intervals horizontally or vertically along the side of the battery compartment. The first color is different from the second color. The purpose is similar to the above. The entire side of the battery compartment is set to the first color to facilitate the subsequent image processing to better obtain the overall outline of the side of the battery compartment; the contrast pattern uses a different second color to facilitate the acquisition of the outline of the contrast pattern in the image with the first color as the background. It is better if the first color is different from the background color of the battery installation cavity. For example, if the background color of the battery installation cavity is gray, the first color is selected as white and the second color is selected as red.

[0085] In the present invention, except for the bottom surface of the battery compartment, the number of rectangular strip patterns on all battery compartment sides is the same, n, with 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 can be. A larger number of n will increase the accuracy of subsequent battery compartment flip and deformation detection and judgment, but the computational complexity will also increase, so the selection can be based on specific needs.

[0086] Reference Figure 3 In the present invention, the flip and deformation detection unit 41 includes an image acquisition module 411 and an image processing module 412. The image acquisition module 411 acquires an image of the area on the bottom surface of the battery compartment including the first detection pattern, as well as complete images of the remaining five side surfaces. The first detection pattern is located in the middle of the bottom surface of the battery compartment, and the middle of the mounting bracket is hollowed out so that the area where the first detection pattern is located can be captured by the image acquisition module 411.

[0087] In the present invention, the image acquisition module can adopt a conventional image acquisition device that can acquire images in real time in the environment where the battery installation cavity is located, 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 inside the battery installation cavity. The number of image acquisition devices is determined by whether it can meet the above-mentioned image acquisition requirements. Generally speaking, a separate image acquisition device needs to be set up for the bottom surface of the battery compartment, and 3-5 images of the other 5 side surfaces of the battery compartment are usually required, depending on the viewing angle coverage capability of the image acquisition device.

[0088] In the present invention, the first analysis and warning unit is in communication with the rollover and deformation detection unit, and the second analysis and warning unit is in communication with both the humidity detection unit and the first analysis and warning unit. The entire rollover and deformation detection and warning system is powered by a rechargeable battery that can be charged by a hydrogen fuel cell.

[0089] Reference Figure 3 In the present invention, the method for the deformation detection and early warning system to perform battery compartment flipping and deformation monitoring and early warning is as follows:

[0090] S1. The image acquisition module acquires an image of the area on the bottom surface of the battery compartment containing the first detection pattern, which is denoted as P1. The image acquisition module also acquires complete images of the remaining five sides of the battery compartment. The five sides are denoted as side i, where i = 2, 3, 4, 5, and 6. The images corresponding to side 2, side 3, side 4, side 5, and side 6 are denoted as P2, P3, P4, P5, and P6, respectively.

[0091] 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 data processing volume will also be greater and the energy consumption will be higher. Therefore, a reasonable selection should be made according to actual needs.

[0092] S2, 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 using a conventional edge detection algorithm, such as the Canny algorithm, the Sobel algorithm, etc., which is not specifically limited in the present invention;

[0093] For the image P1, after contour extraction, an image P-ROI1 containing the contour of the first detection pattern is obtained;

[0094] For image P i, i=2,3,4,5,6, after contour extraction, the image P-ROI containing the battery compartment side edge contour and the contrast graphic contour is obtained i ;

[0095] S3. The first analysis and warning unit compares the image obtained in step S2 with a pre-stored standard image, and determines whether there is a risk of overturning of the current battery compartment or whether overturning has occurred, as well as the deformation level of the battery compartment based on the comparison result;

[0096] The deformation levels in the judgment results include: no deformation or slight deformation, moderate deformation, severe deformation and dangerous deformation;

[0097] 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 forces, so it can be considered that there is no risk of leakage; 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 forces and there is a certain risk of leakage; dangerous deformation means that the battery compartment shell has undergone large deformation, which is likely to cause damage to the internal battery, and has a high risk of leakage.

[0098] Reference Figure 6 , step S3 specifically includes:

[0099] S3-1. Pre-acquire standard images:

[0100] S3-1-1. Use the image acquisition module to capture an image of the intact and undeformed battery compartment installed in the battery installation cavity in advance, and use the captured image as a standard image for comparison;

[0101] The standard image of the area where the first detection pattern is located on the bottom surface of the battery compartment is recorded as PB1, and the standard images of the other five side surfaces i are recorded as PB i , i=2,3,4,5,6, which correspond to side 2, side 3, side 4, side 5, and side 6 respectively;

[0102] S3-1-2, perform grayscale processing and binarization processing on all standard images in the same way as step S2, and then perform contour extraction;

[0103] For image PB1, obtain the standard image PB-ROI1 containing the outline of the first detection pattern, obtain the standard outline of the first detection pattern from the standard image PB-ROI1, and obtain the area S of the internal area of the standard outline of the first detection pattern PB-ROI1 ;

[0104] For image PB i, obtain the standard image PB-ROI containing the battery compartment side edge outline and contrast graphic outline i ; In the standard image PB-ROI i In the process, the standard outline of each battery compartment side edge and the standard outline of the contrast pattern outline in each battery compartment side are obtained, and the area S of the inner area of the standard outline of each battery compartment side edge is further obtained. PBi , and the distance D between two adjacent rectangular strip patterns in the second detection pattern on each battery compartment side i Bi ;

[0105] Since the 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;

[0106] S3-2, obtaining the area S of the inner region of the first detection pattern outline in the image P-ROI1 obtained in step S2 P-ROI1 , and image P-ROI i The area S of the inner area of the side edge contour of each battery compartment Pi ;

[0107] For each image P-ROI i , get 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 contrast pattern, then n-1 spacing values are obtained for each contrast pattern, that is, D ij represents the jth spacing value in the comparison graph on the side i of the battery compartment;

[0108] That is, when selecting 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. However, after the battery compartment is deformed, the stretching, folding, or twisting of the surface will cause the spacing at different positions to be different. The distance value at the position with the maximum spacing is compared with the standard spacing value to determine whether deformation has occurred. The larger the distance value at the position with the maximum spacing, the more serious the deformation.

[0109] S3-3. Analysis and judgment:

[0110] S3-3-1. Flip judgment:

[0111] when And for any image P-ROI i , all satisfy When the battery compartment is judged to have a risk of overturning or has overturned, an alarm message is issued to immediately stop using it and conduct inspection and maintenance; E S1 、E S2 These are all pre-set thresholds;

[0112] Otherwise proceed to the next step;

[0113] This indicates that the area of the image at the bottom of the battery compartment changes greatly. This indicates that the overall deformation of the battery compartment is relatively small. This indicates that the battery compartment is highly likely tilted (posing a risk of flipping) or flipped (has already flipped). A flipping of the battery compartment will significantly affect the battery's performance and may pose a serious safety hazard. Therefore, stop using the device immediately and perform a prompt inspection and repair.

[0114] S3-3-2. Deformation level judgment:

[0115] S3-3-2-1. 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 k = 1 to 5, the deformation level is judged as follows: dangerous deformation, an alarm signal is issued, and the user is stopped immediately; E Dmax is a pre-set threshold;

[0116] Otherwise, go to step S3-3-2-2;

[0117] This indicates that the battery compartment 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;

[0118] S3-3-2-2. For all images P-ROI i , all satisfy And the spacing D between all adjacent rectangular strips ij All meet the following requirements: When the deformation level is determined, it is: no deformation or slight deformation; E D1 is a pre-set threshold; this indicates that the overall deformation of the battery compartment is relatively small, and there is no obvious deformation in the local area;

[0119] Otherwise, go to step S3-3-2-3;

[0120] S3-3-2-3, for all images P-ROI i , count the distance D between adjacent rectangular strips ij satisfy The number of spacings M1, when M1≤(0.01~0.1)*5n, the deformation level is judged as: medium deformation;

[0121] Otherwise, the deformation level is judged as severe deformation, and an alarm signal is issued indicating that inspection and maintenance are required;

[0122] satisfy The spacing Dij indicates that a significant local deformation has occurred, but the local deformation has not reached a significant degree. In this case, the number of spacings M1 that meet this condition determines whether the deformation is moderate or severe. Therefore, a threshold is set. M1 ≤ the threshold indicates a small number of spacings, which can be considered moderate deformation. M1 greater than or equal to the threshold indicates that the number has reached a certain level and should be considered severe deformation. In this case, the value of M1 needs to be selected based on the value of n and actual needs. In the present invention, the threshold is (0.01 to 0.1) * 5n, for example, it can be 0.01 * 5n, 0.05 * 5n, or 0.1 * 5n.

[0123] In the present invention, E D1 =0.001-0.05, E Dmax =0.1-0.4, E S1 =0.15-0.75, E S2 =0.01-0.15.

[0124] S4. The first analysis and warning unit determines whether there is a risk of leakage in the battery compartment based on the humidity detection result of the humidity detection unit and the analysis result of the first analysis and warning unit, and takes corresponding management measures. Figure 5 :

[0125] S4-1, when the humidity value RH detected by the humidity detection unit is not greater than the set threshold value T RH When the battery compartment is checked, it is determined that there is no liquid leakage;

[0126] Battery compartment liquid leakage in the present invention refers to water leakage. When leakage occurs, the humidity in the battery installation cavity will inevitably increase rapidly. Therefore, the humidity value RH can be used as one of the bases for leakage judgment. However, the increase in humidity value RH is not necessarily caused by battery compartment leakage. It may also be caused by an abnormality in the drainage system or external water seeping into the battery installation cavity. Therefore, it is necessary to combine the deformation level judgment result with the humidity value RH to more accurately determine the cause of the increase in humidity value RH.

[0127] S4-2, when humidity value RH>T RHIf the first analysis and warning unit determines that there is no deformation or slight deformation, it is determined that there is no risk of liquid leakage in the battery compartment, dehumidification is turned on, and a warning signal is issued indicating that there is a risk of abnormal drainage in the battery compartment or a risk of water seepage in the battery installation cavity. The dehumidification measure can be achieved by installing a ventilation fan in the battery installation cavity.

[0128] At this point, if the battery compartment has no or slight deformation, it can be assumed that there is no risk of liquid leakage. However, if the humidity in the battery installation cavity is detected to be elevated, it indicates that the elevated humidity is caused by other factors. This could be due to external water infiltration into the battery installation cavity or an abnormality in the drainage system of the battery compartment, causing some drainage to enter the battery installation cavity. In this case, the battery installation cavity needs to be inspected and repaired promptly after dehumidification.

[0129] S4-3, when humidity value RH>T RH , and when the first analysis and warning unit determines that the deformation is dangerous, it determines that there is a risk of liquid leakage in the battery compartment and issues a warning signal for liquid leakage and immediate cessation of use;

[0130] At this time, due to the dangerous deformation and the simultaneous increase in humidity, there is a high probability that the battery compartment and / or the internal battery are damaged, causing liquid leakage. Therefore, it is judged that there is a risk of liquid leakage at this time, and the use of the hydrogen-powered two-wheeled vehicle needs to be stopped immediately to avoid serious consequences.

[0131] S4-4, when humidity value RH>T RH , and when the judgment result of the first analysis and warning unit is medium deformation or severe deformation, the dehumidification is turned on first until the humidity value detected by the humidity detection unit is RH≤T RH Stop when

[0132] If the dehumidification duration exceeds t max After that, the humidity value RH is still greater than T RH , judge that there is a risk of liquid leakage in the battery compartment, and issue a warning signal of liquid leakage, immediately stop using;

[0133] At this point, the battery compartment has undergone a certain degree of deformation (moderate or severe deformation), and dehumidification measures cannot effectively reduce the humidity, indicating a high probability of liquid leakage. The use of the hydrogen-powered two-wheeled vehicle must be stopped immediately to avoid serious consequences.

[0134] If the dehumidification duration does not exceed t max The humidity value RH is reduced to no more than T RH , then continue to monitor the humidity in the battery installation cavity within T time after the dehumidification is completed. If the humidity value increase rate η is greater than the set threshold value T within T time, η, it is judged that there is a risk of liquid leakage in the battery compartment, and an early warning signal of liquid leakage and the need for maintenance is issued (at this time, the humidity decreases after dehumidification, but after stopping the dehumidification measures, the humidity immediately rises again, indicating that there is a high probability of liquid leakage, but the dehumidification measures can significantly suppress the increase in humidity caused by liquid leakage, so the liquid leakage is not very serious and requires timely maintenance); otherwise, it is judged that there is no liquid leakage in the battery compartment, and an early warning signal of abnormal drainage risk in the battery compartment or water seepage risk in the battery installation cavity is issued (at this time, although the battery compartment has undergone a certain deformation, the humidity decreases after dehumidification, and the humidity does not increase significantly after stopping the dehumidification measures, indicating that there is no continuous water intrusion. It can be judged with a high probability that the deformation has not caused significant damage to the battery compartment and no liquid leakage has occurred. Instead, the humidity has increased due to an abnormal drainage system or external water seeping into the battery installation cavity, and the battery installation cavity needs to be repaired in a timely manner);

[0135] Among them, the humidity value increase rate RH max It indicates the maximum value of the humidity in the battery installation cavity detected by the humidity detection unit within the time T after dehumidification is stopped.

[0136] Among them, t max The value of can be selected according to the actual situation. In the preferred embodiment, t max =5-60min, for example, t max =5min, t max =10min, t max =30min, etc.

[0137] Among them, the humidity value increase rate η represents the degree of humidity increase. A small increase in humidity value is a normal fluctuation. Therefore, only when it reaches a certain value can it represent an abnormal increase. To avoid misjudgment, a threshold T is set. η , T η The value of can be selected according to the actual situation. In the preferred embodiment, T η =1%-20%, for example, T η =1%, T η =5%, T η =10%, etc.

[0138] The above is the overall concept of the present invention. Detailed examples and comparative examples are provided below to further illustrate the present invention.

[0139] Example 1

[0140] This embodiment provides a hydrogen-powered two-wheeled vehicle with a battery compartment flip and deformation detection and warning function. The hydrogen-powered two-wheeled vehicle includes a hydrogen-powered two-wheeled vehicle body, a hydrogen fuel cell arranged on the hydrogen-powered two-wheeled vehicle body, a flip and deformation detection and warning system, and a drive system; a battery mounting cavity is provided on the hydrogen-powered two-wheeled vehicle body, a battery compartment is fixedly installed in the battery mounting cavity, and the hydrogen fuel cell is arranged inside the battery compartment; the hydrogen fuel cell uses hydrogen to generate electricity, and the drive system uses the electricity provided by the hydrogen fuel cell system to provide driving force for the vehicle body.

[0141] Reference Figure 7 In this embodiment, a mounting bracket 12 is provided within the battery mounting cavity 11. The battery compartment 13 is fixed to the mounting bracket 12 by its ground connection. The bottom of the mounting bracket 12 is hollowed out. A fan 14 is provided within the battery mounting cavity 11 for dehumidification, along with corresponding air inlet and exhaust vents 15. Fan 14 is positioned above the air inlet, drawing in external air and exhausting internal air, thereby achieving dehumidification. Other structural components required for the hydrogen fuel cell, such as the hydrogen supply pipeline, excess hydrogen exhaust pipeline, oxygen supply pipeline, and drainage pipeline, are not shown in the diagram.

[0142] In this embodiment, the flip and deformation detection and warning system is used to realize flip and deformation monitoring and warning of the battery compartment, and to judge whether there is a risk of leakage in the battery compartment; the flip and deformation detection and warning system includes a flip and deformation detection unit, a humidity detection unit, a first analysis and warning unit and a second analysis and warning unit; the flip and deformation detection unit adopts an image processing-based method to realize the detection and judgment of the flip and deformation of the battery compartment, the humidity detection unit detects the humidity in the battery installation cavity, the first analysis and warning unit judges whether there is a risk of flipping or flipping of the battery compartment and the deformation level of the battery compartment according to the detection results of the flip and deformation detection unit, and the second analysis and warning unit judges whether there is a risk of leakage in the battery compartment according to the detection results of the humidity detection unit and the judgment result of the first analysis and warning unit.

[0143] The humidity detection unit is specifically a conventional humidity sensor 18 .

[0144] In this embodiment, the warning signal of the rollover and deformation detection warning system is output synchronously through voice and text on the display screen of the front of the hydrogen electric vehicle.

[0145] In this embodiment, the battery compartment is rectangular, and its bottom surface is fixed to the bottom surface of the battery installation cavity by a mounting bracket; the bottom surface of the battery compartment is provided with a first detection pattern, and the other five side surfaces are provided with a second detection pattern;

[0146] Reference Figure 8The first detection pattern is circular and has a different color than the bottom of the battery compartment. This color difference makes it easier to capture the first detection pattern from the bottom of the battery compartment in the binary image during subsequent image processing. The color of the first detection pattern is selected based on the color of the bottom of the battery compartment. The battery compartment is typically made of metal and is usually dark in color, gray in this embodiment. The color of the first detection pattern is white.

[0147] The second detection pattern includes a primer background image using a first color that covers the entire side of the battery compartment and a contrasting pattern using a second color that is set on the primer background image. The contrasting pattern is a number of rectangular strip patterns that are evenly spaced horizontally or vertically along the side of the battery compartment. The first color is different from the second color. The purpose is similar to the above. The entire side of the battery compartment is set to the first color, which facilitates the subsequent image processing to better obtain the overall outline of the side of the battery compartment; the contrasting pattern uses a different second color to facilitate the acquisition of the outline of the contrasting pattern in the image with the first color as the background. It is better if the first color is different from the background color of the battery installation cavity. For example, in this embodiment, the background color of the battery installation cavity is gray, the first color is selected as white, and the second color is selected as red.

[0148] In this embodiment, except for the bottom surface of the battery compartment, the number of rectangular strip patterns on all the side surfaces of the battery compartment is the same, which is n, where n=5-100. In this embodiment, n=10.

[0149] In this embodiment, the flip and deformation detection unit includes an image acquisition module and an image processing module. The image acquisition module captures an image of the area on the bottom surface of the battery compartment where the first detection pattern is located, as well as complete images of the remaining five side surfaces; the first detection pattern is located in the middle of the bottom surface of the battery compartment, and the middle part of the mounting bracket is hollowed out so that the area where the first detection pattern is located can be captured by the image acquisition module.

[0150] The image acquisition module can use a conventional image acquisition device that can acquire images in real time in the environment where the battery installation cavity is located, 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 inside the battery installation cavity. The number of image acquisition devices is determined by whether it can meet the above-mentioned image acquisition requirements. Generally speaking, a separate image acquisition device is required for the bottom surface of the battery compartment, and 3-5 images of the remaining 5 side surfaces of the battery compartment are usually required, depending on the viewing angle coverage capability of the image acquisition device. In this embodiment, referring to Figure 7 A miniature industrial camera 10 is provided below the hollow area in the middle of the mounting bracket 12, and a miniature industrial camera 10 is provided on each of the remaining surfaces to ensure the image acquisition effect.

[0151] In this embodiment, the first analysis and warning unit is in communication with the rollover and deformation detection unit, and the second analysis and warning unit is in communication with both the humidity detection unit and the first analysis and warning unit. The entire rollover and deformation detection and warning system is powered by a rechargeable battery that can be charged by a hydrogen fuel cell.

[0152] In this embodiment, the deformation detection and warning system performs the following method for battery compartment flipping, deformation monitoring, and warning:

[0153] S1. The image acquisition module acquires an image of the area on the bottom surface of the battery compartment containing the first detection pattern, which is denoted as P1. The image acquisition module also acquires complete images of the remaining five sides of the battery compartment. The five sides are denoted as side i, where i = 2, 3, 4, 5, and 6. The images corresponding to side 2, side 3, side 4, side 5, and side 6 are denoted as P2, P3, P4, P5, and P6, respectively.

[0154] 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;

[0155] S2, the image processing module first performs grayscale processing on all images collected by the image acquisition 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;

[0156] For the image P1, after contour extraction, an image P-ROI1 containing the contour of the first detection pattern is obtained;

[0157] For image P i , i=2,3,4,5,6, after contour extraction, the image P-ROI containing the battery compartment side edge contour and the contrast graphic contour is obtained i ;

[0158] S3. The first analysis and warning unit compares the image obtained in step S2 with a pre-stored standard image, and determines whether there is a risk of overturning of the current battery compartment or whether overturning has occurred, as well as the deformation level of the battery compartment based on the comparison result;

[0159] The deformation levels in the judgment results include: no deformation or slight deformation, moderate deformation, severe deformation and dangerous deformation;

[0160] Step S3 specifically includes:

[0161] S3-1. Pre-acquire standard images:

[0162] S3-1-1. Use the image acquisition module to capture an image of the intact and undeformed battery compartment installed in the battery installation cavity in advance, and use the captured image as a standard image for comparison;

[0163] The standard image of the area where the first detection pattern is located on the bottom surface of the battery compartment is recorded as PB1, and the standard images of the other five side surfaces i are recorded as PB i , i=2,3,4,5,6, which correspond to side 2, side 3, side 4, side 5, and side 6 respectively;

[0164] S3-1-2, perform grayscale processing and binarization processing on all standard images in the same way as step S2, and then perform contour extraction;

[0165] For image PB1, obtain the standard image PB-ROI1 containing the outline of the first detection pattern, obtain the standard outline of the first detection pattern from the standard image PB-ROI1, and obtain the area S of the internal area of the standard outline of the first detection pattern PB-ROI1 ;

[0166] For image PB i , obtain the standard image PB-ROI containing the battery compartment side edge outline and contrast graphic outline i ; In the standard image PB-ROI i In the process, the standard outline of each battery compartment side edge and the standard outline of the contrast pattern outline in each battery compartment side are obtained, and the area S of the inner area of the standard outline of each battery compartment side edge is further obtained. PBi , and the distance D between two adjacent rectangular strip patterns in the second detection pattern on each battery compartment side i Bi ;

[0167] Since the 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;

[0168] S3-2, obtaining the area S of the inner region of the first detection pattern outline in the image P-ROI1 obtained in step S2 P-ROI1 , and image P-ROI i The area S of the inner area of the side edge contour of each battery compartment Pi ;

[0169] For each image P-ROI i , get 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 contrast pattern, then n-1 spacing values are obtained for each contrast pattern, that is, D ij represents the jth spacing value in the comparison graph on the side i of the battery compartment;

[0170] S3-3. Analysis and judgment:

[0171] S3-3-1. Flip judgment:

[0172] when And for any image P-ROI i , all satisfy When the battery compartment is judged to be at risk of overturning or has overturned, an alarm message is issued to immediately stop use and conduct inspection and maintenance;

[0173] Otherwise proceed to the next step;

[0174] S3-3-2. Deformation level judgment:

[0175] S3-3-2-1. 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 k=2, the deformation level is judged as dangerous deformation, an alarm signal is issued, and the user is stopped immediately;

[0176] Otherwise, go to step S3-3-2-2;

[0177] S3-3-2-2. For all images P-ROI i , all satisfy And the spacing D between all adjacent rectangular strips ij All meet the following requirements: When the deformation level is determined to be: no deformation or slight deformation, this indicates that the overall deformation of the battery compartment is relatively small, and there is no obvious deformation in the local area;

[0178] Otherwise, go to step S3-3-2-3;

[0179] S3-3-2-3, for all images P-ROI i , count the distance D between adjacent rectangular strips ij satisfy The number of spacings M1, when M1≤0.1*5n, that is, M1≤5, the deformation level is judged as: medium deformation;

[0180] Otherwise, the deformation level is judged as severe deformation, and an alarm signal is issued indicating that inspection and maintenance are required;

[0181] In this embodiment, E D1 =0.01, E Dmax =0.2, E S1 =0.25, E S2 =0.15.

[0182] S4. The first analysis and warning unit determines whether there is a risk of leakage in the battery compartment based on the humidity detection result of the humidity detection unit and the analysis result of the first analysis and warning unit, and takes corresponding management measures:

[0183] S4-1, when the humidity value RH detected by the humidity detection unit is not greater than the set threshold value T RH When the battery compartment is judged to have no liquid leakage; in this embodiment, as an illustration, select T RH =30%;

[0184] S4-2, when humidity value RH>T RH If the first analysis and warning unit determines that there is no deformation or slight deformation, it is determined that there is no risk of liquid leakage in the battery compartment, dehumidification is turned on, and a warning signal is issued indicating that there is a risk of abnormal drainage in the battery compartment or a risk of water seepage in the battery installation cavity. The dehumidification measure can be achieved by installing a ventilation fan in the battery installation cavity.

[0185] S4-3, when humidity value RH>T RH , and when the first analysis and warning unit determines that the deformation is dangerous, it determines that there is a risk of liquid leakage in the battery compartment and issues a warning signal for liquid leakage and immediate cessation of use;

[0186] At this time, due to the dangerous deformation and the simultaneous increase in humidity, there is a high probability that the battery compartment and / or the internal battery are damaged, causing liquid leakage. Therefore, it is judged that there is a risk of liquid leakage at this time, and the use of the hydrogen-powered two-wheeled vehicle needs to be stopped immediately to avoid serious consequences.

[0187] S4-4, when humidity value RH>T RH , and when the judgment result of the first analysis and warning unit is medium deformation or severe deformation, the dehumidification is turned on first until the humidity value detected by the humidity detection unit is RH≤T RH Stop when

[0188] If the dehumidification duration exceeds t max After that, the humidity value RH is still greater than T RH , it is determined that there is a risk of liquid leakage in the battery compartment, and an early warning signal of liquid leakage is issued, indicating that the battery compartment should be stopped immediately; in this embodiment, as an example, t max =10min;

[0189] If the dehumidification duration does not exceed t max The humidity value RH is reduced to no more than T RH , then continue to monitor the humidity in the battery installation cavity within T time after the dehumidification is completed. If the humidity value increase rate η is greater than the set threshold value T within T time, η , it is judged that there is a risk of liquid leakage in the battery compartment and an early warning signal of liquid leakage and need for maintenance is issued; otherwise, it is judged that there is no liquid leakage in the battery compartment and an early warning signal of abnormal drainage risk in the battery compartment or water seepage risk in the battery installation cavity is issued;

[0190] Among them, the humidity value increase rate RH max It represents the maximum value of the humidity in the battery installation cavity detected by the humidity detection unit within the T time after the dehumidification is stopped. η =5%.

[0191] The detection reliability of the flip and deformation detection and early warning system of Example 1 was tested. During the test, a certain external force was applied to the battery compartment each time. The flip and deformation detection and early warning system was first used to detect and output the judgment result (when the judgment result is that there is a risk of liquid leakage, it is considered that liquid leakage has occurred). Then manual detection was performed. During the manual detection, for liquid leakage, the battery compartment was manually detected for liquid leakage. The detection results of the flip and deformation detection early warning system were recorded as automatic monitoring results, and the results of manual detection were recorded as actual results. A total of 200 detection tests were carried out, and the statistical results of liquid leakage detection are shown in Table 1 below.

[0192] Table 1

[0193] Total number of automatic monitoring results Total actual results No liquid leakage 183 183 There is a liquid leak 17 17

[0194] According to the results in Table 1, the detection rate and accuracy of liquid leakage both reached 100%.

[0195] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. 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 hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions, characterized in that: The hydrogen-powered two-wheeled vehicle comprises a hydrogen-powered two-wheeled vehicle body, a hydrogen fuel cell arranged on the hydrogen-powered two-wheeled vehicle body, and a rollover and deformation detection and warning system; the hydrogen-powered two-wheeled vehicle body is provided with a battery mounting cavity, a battery compartment is fixedly mounted in the battery mounting cavity, and the hydrogen fuel cell is arranged inside the battery compartment; The flip and deformation detection and warning system is used to monitor and warn the flip and deformation of the battery compartment, and to determine whether there is a risk of leakage in the battery compartment. The rollover and deformation detection and warning system includes a rollover and deformation detection unit, a humidity detection unit, a first analysis and warning unit, and a second analysis and warning unit; The flip and deformation detection unit uses image processing-based methods to detect and judge the flip and deformation of the battery compartment, and the humidity detection unit detects the humidity in the battery installation cavity; The bottom surface of the battery compartment is provided with a first detection pattern, and the other five side surfaces are provided with a second detection pattern, wherein the second detection pattern includes a contrast pattern, which is a plurality of rectangular strip patterns arranged at equal intervals; The flip and deformation detection unit includes an image acquisition module and an image processing module; The flip and deformation detection and warning system performs flip and deformation monitoring and early warning of the battery compartment as follows: S1. The image acquisition module acquires an image of the bottom surface of the battery compartment containing the area where the first detection pattern is located, which is recorded as P1. The image acquisition module also acquires complete images of the remaining five sides of the battery compartment. The five sides are recorded as side i, where i = 2, 3, 4, 5, and 6. The images corresponding to side 2, side 3, side 4, side 5, and side 6 are recorded as P2, P3, P4, P5, and P6, respectively. S2, the image processing module first performs grayscale processing on all images collected by the image acquisition module, then performs binarization processing, and finally extracts contours from the obtained binary images; For the image P1, after contour extraction, an image P-ROI1 containing the contour of the first detection pattern is obtained; For image P i , i=2,3,4,5,6, after contour extraction, the image P-ROI containing the battery compartment side edge contour and the contrast graphic contour is obtained i ; S3. The first analysis and warning unit compares the image obtained in step S2 with a pre-stored standard image, and determines whether there is a risk of overturning of the current battery compartment or whether overturning has occurred, as well as the deformation level of the battery compartment based on the comparison result; Judgment methods include: Image P-ROI i In 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. However, after the battery compartment is deformed, the spacing at different positions will be different. The distance value at the position with the maximum spacing is compared with the standard spacing value to determine whether deformation has occurred. The larger the distance value at the position with the maximum spacing, the more serious the deformation. The deformation levels in the judgment results include: no deformation or slight deformation, moderate deformation, severe deformation and dangerous deformation; S4. The first analysis and early warning unit determines whether there is a risk of leakage in the battery compartment based on the humidity detection result of the humidity detection unit and the analysis result of the first analysis and early warning unit, and takes corresponding management measures.

2. The hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions according to claim 1 is characterized in that: The battery compartment is rectangular, and its bottom surface is fixed to the bottom surface of the battery installation cavity through a mounting bracket; The first detection pattern is circular or rectangular, and its color is different from the bottom color of the battery compartment.

3. The hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions according to claim 2 is characterized in that: The second detection pattern includes a primer background pattern using a first color covering the entire side of the battery compartment and a contrasting pattern using a second color arranged on the primer background pattern. The contrasting 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. The first color is different from the second color.

4. The hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions according to claim 3 is characterized in that: Except for the bottom surface of the battery compartment, the number of rectangular strip patterns on the sides of all battery compartments is the same, which is n, and n=5-100.

5. The hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions according to claim 4 is characterized in that: The image acquisition module captures an image of the area on the bottom surface of the battery compartment where the first detection pattern is located, as well as complete images of the remaining five side surfaces; the first detection pattern is located in the middle of the bottom surface of the battery compartment, and the middle part of the mounting bracket is hollowed out so that the area where the first detection pattern is located can be captured by the image acquisition module.

6. The hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions according to claim 5 is characterized in that: Step S4 is specifically as follows: S4-1, when the humidity value RH detected by the humidity detection unit is not greater than the set threshold value T RH When the battery compartment is checked, it is determined that there is no liquid leakage; S4-2, when humidity value RH>T RH , and when the first analysis and warning unit determines that there is no deformation or slight deformation, it is determined that there is no risk of liquid leakage in the battery compartment, the dehumidification is turned on, and a warning signal is issued that there is a risk of abnormal drainage in the battery compartment or a risk of water seepage in the battery installation cavity; S4-3, when humidity value RH>T RH , and when the first analysis and warning unit determines that the deformation is dangerous, it determines that there is a risk of liquid leakage in the battery compartment and issues a warning signal for liquid leakage and immediate cessation of use; S4-4, when humidity value RH>T RH , and when the judgment result of the first analysis and warning unit is medium deformation or severe deformation, the dehumidification is turned on first until the humidity value detected by the humidity detection unit is RH≤T RH Stop when If the dehumidification duration exceeds t max After that, the humidity value RH is still greater than T RH , judge that there is a risk of liquid leakage in the battery compartment, and issue a warning signal of liquid leakage, immediately stop using; If the dehumidification duration does not exceed t max The humidity value RH is reduced to no more than T RH , then continue to monitor the humidity in the battery installation cavity within T time after the dehumidification is completed. If the humidity value increase rate η is greater than the set threshold value T within T time, η , it is judged that there is a risk of liquid leakage in the battery compartment and an early warning signal of liquid leakage and need for maintenance is issued; otherwise, it is judged that there is no liquid leakage in the battery compartment and an early warning signal of abnormal drainage risk in the battery compartment or water seepage risk in the battery installation cavity is issued; Among them, the humidity value increase rate , RH max It indicates the maximum value of the humidity in the battery installation cavity detected by the humidity detection unit within the time T after dehumidification is stopped.

7. The hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions according to claim 6 is characterized in that: in, t max =5-60min,T η =1%-20%。 8. The hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions according to claim 6 is characterized in that: Step S3 specifically includes: S3-1. Pre-acquire standard images: S3-1-1. Use the image acquisition module to capture an image of the intact and undeformed battery compartment installed in the battery installation cavity in advance, and use the captured image as a standard image for comparison; The standard image of the area where the first detection pattern is located on the bottom surface of the battery compartment is recorded as PB1, and the standard images of the other five side surfaces i are recorded as PB i , i=2,3,4,5,6, which correspond to side 2, side 3, side 4, side 5, and side 6 respectively; S3-1-2, perform grayscale processing and binarization processing on all standard images in the same way as step S2, and then perform contour extraction; For image PB1, obtain the standard image PB-ROI1 containing the outline of the first detection pattern, obtain the standard outline of the first detection pattern from the standard image PB-ROI1, and obtain the area S of the internal area of the standard outline of the first detection pattern PB-ROI1 ; For image PB i , obtain the standard image PB-ROI containing the battery compartment side edge outline and contrast graphic outline i ; In the standard image PB-ROI i In the process, the standard outline of each battery compartment side edge and the standard outline of the contrast pattern outline in each battery compartment side are obtained, and the area S of the inner area of the standard outline of each battery compartment side edge is further obtained. PBi , and the distance D between two adjacent rectangular strip patterns in the contrast pattern on the side i of each battery compartment Bi ; S3-2, obtaining the area S of the inner region of the first detection pattern outline in the image P-ROI1 obtained in step S2 P-ROI1 , and image P-ROI i The area S of the inner area of the side edge contour of each battery compartment Pi ; For each image P-ROI i , get 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, and 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; S3-3. Analysis and judgment: S3-3-1. Flip judgment: when , and for any image P-ROI i , all satisfy When the battery compartment is judged to have a risk of overturning or has overturned, an alarm message is issued to immediately stop using it and conduct inspection and maintenance; E S1 、E S2 These are all pre-set thresholds; Otherwise proceed to the next step; S3-3-2. Deformation level judgment: S3-3-2-1. 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 k=1~5, the deformation level is judged as follows: dangerous deformation, an alarm signal is issued, and the user is stopped immediately; E Dmax is a pre-set threshold; Otherwise, go to step S3-3-2-2; S3-3-2-2. For all images P-ROI i , if both satisfy , and the spacing D between all adjacent rectangular strip patterns ij All meet the following requirements: When the deformation level is determined, it is: no deformation or slight deformation; E D1 is a pre-set threshold; Otherwise, go to step S3-3-2-3; S3-3-2-3, for all images P-ROI i , count the distance D between adjacent rectangular strips ij satisfy The number of spacings M1, when M1≤(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.

9. The hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions according to claim 8 is characterized in that: in, AND D1 =0.001-0.05,And Dmax =0.1-0.4,E S1 =0.15-0.75,E S2 =0.01-0.15。 10. The hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and warning functions according to any one of claims 1 to 9, characterized in that: The hydrogen-powered two-wheeled vehicle further comprises a driving system, which utilizes the electric energy provided by the hydrogen fuel cell system to provide driving force for the hydrogen-powered two-wheeled vehicle body.

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