Hydrogen energy two-wheeled vehicle with battery compartment overturning and deformation detecting and early warning functions

Abstract

The invention discloses a hydrogen energy two-wheeled vehicle with battery bin overturning and deformation detecting and early warning functions. The hydrogen energy two-wheeled vehicle comprises a hydrogen energy two-wheeled vehicle body, a hydrogen fuel cell arranged on the hydrogen energy two-wheeled vehicle body and an overturning and deformation detecting and early warning system. The overturning and deformation detection unit is used for detecting and judging overturning and deformation of the battery compartment by adopting a method based on image processing, and the humidity detection unit is used for detecting the humidity in the battery mounting cavity; the first analysis and early warning unit judges whether the battery compartment has an overturning risk or is overturned and the deformation level of the battery compartment according to the detection result of the overturning and deformation detection unit, and the second analysis and early warning unit judges whether the battery compartment has an overturning risk or is overturned according to the detection result of the humidity detection unit and the judgment result of the first analysis and early warning unit. And judging whether the battery compartment has a liquid leakage risk or not. According to the invention, the potential safety hazard of the hydrogen fuel cell system can be found in time for corresponding treatment, and the use effect and the use safety of the hydrogen energy two-wheeled vehicle can be better ensured.

Description

Technical Field

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

[0002] Electric two-wheelers can effectively solve the pain points of short-distance travel. In addition, the development of new business forms such as takeout and express delivery has boosted the demand for electric two-wheelers, making them have long-term growth attributes. Currently, electric two-wheelers on the market are mainly powered by lithium batteries, which have problems such as long charging time, short cruising range, recycling pollution, and thermal runaway. Hydrogen-powered electric vehicles using hydrogen fuel cells have fast hydrogen charging speeds, a cruising range of usually up to 80-100km, and safer use of hydrogen, making them an ideal choice for low-carbon, environmentally friendly travel.

[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. At the same time, the water produced during the operation of the hydrogen fuel cell also needs to be discharged from the battery compartment through the drainage system.

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

[0006] Therefore, for hydrogen-powered electric two-wheelers, deformation and overturn detection of the battery compartment is very necessary. When deformation and overturning occur, timely maintenance or replacement can reduce safety accidents, and early maintenance and use can also reduce hardware loss. The humidity detection and control of the battery working environment and leakage detection can also reduce the safety risks of hydrogen fuel cells and ensure their normal 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 humidity detection and control 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 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: a hydrogen-powered two-wheeled vehicle with a battery compartment flipping and deformation detection and early warning function, comprising a hydrogen-powered two-wheeled vehicle body, a hydrogen fuel cell arranged on the hydrogen-powered two-wheeled vehicle body, and a flipping and deformation detection and early warning system; a battery installation cavity is arranged 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;

[0010] The flipping and deformation detection and early warning system is used to realize flipping and deformation monitoring and early warning of the battery compartment, and to determine whether there is a risk of leakage in the battery compartment;

[0011] The overturning and deformation detection and early warning system comprises an overturning and deformation detection unit, a humidity detection unit, a first analysis and early warning unit and a second analysis and early warning unit;

[0012] The flip and deformation detection unit adopts 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 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. The second analysis and early 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 results of the first analysis and early warning unit.

[0013] Preferably, the battery compartment is in a rectangular shape, 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 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, 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 in 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, and a complete image 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 shape flipping and deformation monitoring and early warning is:

[0020] 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 recorded as P1, and acquires complete images of the remaining five sides of the battery compartment, which are recorded as side i, i=2, 3, 4, 5, 6, and 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 extracts contours from the obtained binary images;

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

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

[0024] S3, the first analysis and early warning unit compares the image obtained in step S2 with the standard image pre-stored internally, and determines whether there is a risk of overturning of the current battery compartment or overturning occurs and the deformation level of the battery compartment according to 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 early warning unit determines whether there is a risk of leakage in the battery compartment according to 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:

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

[0028] S4-2, when humidity value RH>T RH , and when the judgment result of the first analysis and early warning unit is no deformation or slight deformation, it is judged that there is no risk of liquid leakage in the battery compartment, the dehumidification is turned on, and an early 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 judgment result of the first analysis and warning unit is dangerous deformation, it is judged that there is a risk of liquid leakage in the battery compartment, and a warning signal of liquid leakage and immediate stop of use is issued;

[0030] S4-4, when humidity value RH>T RH , and when the judgment result of the first analysis and early 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 , determine that there is a risk of liquid leakage in the battery compartment, and issue an early warning signal of liquid leakage and immediately stop using the battery;

[0032] If the dehumidification duration does not exceed t max The humidity value RH is reduced to no more than T RH , the humidity in the battery installation cavity will continue to be monitored within T time after the dehumidification is completed. If the humidity value increase rate η within T time is greater than the set threshold value T 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 T time after the 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 an image acquisition module to acquire an image of a battery compartment that is intact and not deformed and installed in the battery installation cavity in advance, and use the acquired 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, corresponding to side 2, side 3, side 4, side 5, 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 the 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 inner region of the standard outline of the first detection pattern PB-ROI1 ;

[0041] 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 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 contour 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 , both 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 the battery 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 , 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;

[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-powered 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 flipping and deformation detection and early warning function, which can realize the detection and early warning of the flipping and deformation of the battery compartment where the hydrogen fuel cell is installed, and judge whether there is a risk of liquid leakage in the battery compartment. At the same time, it can also detect and control the humidity of the working environment where the battery compartment is located, so that the safety hazards of the hydrogen fuel cell system can be discovered in time for corresponding treatment, and the use effect and safety of the hydrogen-powered two-wheeled vehicle can be better guaranteed;

[0059] The rollover and deformation detection and early 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. By further combining the humidity detection with the battery compartment deformation results, the liquid leakage risk of the battery compartment can be monitored, which can facilitate the timely discovery of problems in the battery compartment 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 It is a principle block diagram of the hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and early warning functions of the present invention;

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

[0062] Figure 3 It is a principle block diagram of the flipping 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 shape 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 It is a 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—main body of hydrogen-powered two-wheeled vehicle; 10—micro industrial phase; 11—battery installation cavity; 12—installation 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 early warning system; 41—flip and deformation detection unit; 42—humidity detection unit; 43—first analysis and early warning unit; 44—second analysis and early warning unit; 411—image acquisition module; 412—image processing module. DETAILED DESCRIPTION

[0073] 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.

[0074] 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.

[0075] The present invention provides a hydrogen-powered two-wheeled vehicle with battery compartment flipping and deformation detection and early warning functions, referring to Figure 1 The hydrogen-powered two-wheeled vehicle comprises 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 warning system 4 and a driving system 2; a battery installation cavity is arranged 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 electrical energy, and the driving system uses the electrical energy 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 early warning system is used to realize the 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 overturning and deformation detection and early warning system 4 includes a overturning and deformation detection unit 41, a humidity detection unit 42, a first analysis and early warning unit 43 and a second analysis and early warning unit 44;

[0078] The flip and deformation detection unit adopts 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 according to 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 according to 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 on the display screen at the front of the hydrogen-powered electric vehicle or other conspicuous positions through voice and / or text; it can also be uploaded to the cloud and synchronously sent to the user receiving end by the cloud. The user receiving end can be an APP installed on the mobile phone of the user of the hydrogen-powered electric vehicle.

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

[0082] 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;

[0083] The first detection pattern is circular or rectangular, and its color is different from the color of the bottom of the battery compartment. The purpose of the different colors is to make it easier to obtain the image of 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 according to the color of the bottom of the battery compartment. The battery compartment is usually a metal plate, and the color is usually dark, 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 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 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. The purpose is similar to the above. The entire side of the battery compartment is set to the first color, which is convenient for subsequent image processing to better obtain the overall outline of the side of the battery compartment; the contrasting pattern uses a different second color, which is convenient for obtaining 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, 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 in all battery compartment sides 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 the subsequent battery compartment flipping and deformation detection and judgment will be, but the amount of calculation will also be greater, so it can be selected according to 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 bottom surface of the battery compartment including the area 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 acquired 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 based on whether it can meet the above-mentioned image acquisition requirements. Generally speaking, a separate image acquisition device needs to be set 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.

[0088] In the present invention, the first analysis and warning unit is connected to the flip and deformation detection unit, and the second analysis and warning unit is connected to the humidity detection unit and the first analysis and warning unit. The entire flip and deformation detection and warning system is powered by a battery with a charging function, and a hydrogen fuel cell can charge the battery.

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

[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 recorded as P1, and acquires complete images of the remaining five sides of the battery compartment, which are recorded as side i, i=2, 3, 4, 5, 6, and 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;

[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 larger the amount of data processing and the higher the energy consumption, so a reasonable selection is 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 by 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 performing contour extraction, an image P-ROI1 including the contour of the first detection pattern is obtained;

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

[0095] S3, the first analysis and early warning unit compares the image obtained in step S2 with the standard image pre-stored internally, and determines whether the current battery compartment has a risk of flipping or has flipped, and the deformation level of the battery compartment according to 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 force, so it can be considered that there is no risk of leakage; 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.

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

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

[0100] S3-1-1. Use an image acquisition module to acquire an image of a battery compartment that is intact and not deformed and installed in the battery installation cavity in advance, and use the acquired 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, corresponding to side 2, side 3, side 4, side 5, 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 the 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 inner region of the standard outline of the first detection pattern PB-ROI1 ;

[0104] 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 second detection pattern on each battery compartment side i Bi ;

[0105] 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;

[0106] S3-2, obtaining the area S of the inner region of the first detection pattern contour 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 , 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;

[0108] 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;

[0109] S3-3. Analysis and judgment:

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

[0111] when And for any image P-ROI i , both 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 means that the overall deformation of the battery compartment is relatively small. This means that the battery compartment is very likely to be tilted (there is a risk of flipping) or flipped (it has already flipped). The flipping of the battery compartment will greatly affect the working condition of the battery and may cause serious safety hazards. Therefore, you need to stop using it immediately and carry out inspection and repair in time.

[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 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;

[0118] S3-3-2-2. For all images P-ROI i , 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;

[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 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.

[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 early warning unit determines whether there is a risk of leakage in the battery compartment according to 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. 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 It is determined that there is no liquid leakage in the battery compartment;

[0126] The 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, so the humidity value RH can be used as one of the bases for leakage judgment. However, the increase in the humidity value RH is not necessarily caused by battery compartment leakage. It may also be caused by abnormal drainage system or external water infiltration into the battery installation cavity. Therefore, it is necessary to combine it with the deformation level judgment result to more accurately judge the reason for the increase in the humidity value RH.

[0127] S4-2, when humidity value RH>T RH, and when the judgment result of the first analysis and early warning unit is no deformation or slight deformation, it is judged that there is no risk of liquid leakage in the battery compartment, the dehumidification is turned on, and an early 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; wherein the dehumidification measure can be achieved by setting a ventilation fan in the battery installation cavity;

[0128] At this time, the battery compartment has no or slight deformation, so it can be considered that there is no risk of liquid leakage. However, the humidity in the battery installation cavity is detected to be increased, indicating that the humidity increase is caused by other reasons. It is mainly considered that external water has penetrated into the battery installation cavity or the drainage system of the battery compartment is abnormal, causing part of the drainage to enter the battery installation cavity. At this time, after dehumidification, the battery installation cavity needs to be inspected and repaired in time.

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

[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 is damaged and causes 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 , determine that there is a risk of liquid leakage in the battery compartment, and issue an early warning signal of liquid leakage and immediately stop using the battery;

[0133] At this time, the battery compartment has undergone a certain deformation (moderate deformation or severe deformation), and the dehumidification measures cannot effectively reduce the humidity, indicating that there is 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 , the humidity in the battery installation cavity will continue to be monitored within T time after the dehumidification is completed. If the humidity value increase rate η within T time is greater than the set threshold value T 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 (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 have a significant inhibitory effect on the humidity increase caused by liquid leakage, so the liquid leakage is not very serious and needs 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 has decreased after dehumidification, and the humidity has not increased significantly after stopping the dehumidification measures, indicating that there is no continuous water ingress. 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, but the humidity has increased due to abnormal drainage system or external water infiltrating into the battery installation cavity, and the battery installation cavity needs to be repaired in time);

[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 T time after the 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] The humidity increase rate η represents the degree of humidity increase. A small increase in humidity 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, 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.

[0139] Example 1

[0140] The present embodiment provides a hydrogen-powered two-wheeled vehicle with a battery compartment flipping and deformation detection and warning function, 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, a flipping and deformation detection and warning system and a driving system; a battery mounting cavity is arranged 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 driving 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 in the battery mounting cavity 11, and the battery compartment 13 is fixedly mounted on the mounting bracket 12 through the ground. The bottom of the mounting bracket 12 is hollowed out. A fan 14 is provided in the battery mounting cavity 11 for dehumidification, and corresponding air inlets and air outlets 15 are configured. The fan 14 is provided on the air inlet, and external air is introduced and internal air is discharged through the fan 14, thereby achieving dehumidification. Other structures such as the hydrogen supply pipeline, excess hydrogen exhaust pipeline, oxygen supply pipeline, and drainage pipeline required for the hydrogen fuel cell are not shown in the figure.

[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 determine 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 flipping and deformation of the battery compartment, the humidity detection unit detects the humidity in the battery installation cavity, the first analysis and warning unit determines 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 determines whether there is a risk of leakage in the battery compartment according to the detection results of the humidity detection unit and the judgment results 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 synchronously output through voice and text on the display screen of the front of the hydrogen-powered electric vehicle.

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

[0146] Reference Figure 8The first detection pattern is circular, and its color is different from the bottom color of the battery compartment. The purpose of the different colors is to make it easier to obtain the image of 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 according to the color of the bottom of the battery compartment. The battery compartment is usually made of metal sheet, and the color is usually dark, which is gray in this embodiment. The color of the first detection pattern is selected as 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 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. The purpose is similar to the above. The entire side of the battery compartment is set to the first color, which is convenient for subsequent image processing to better obtain the overall outline of the side of the battery compartment; the contrasting pattern uses a different second color, which is convenient for obtaining the outline of the contrasting pattern in the image with the first color as the background. It is better that 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 in 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 acquires an image of the area on the bottom surface of the battery compartment including the first detection pattern, as well as a complete image 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.

[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 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 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, refer to Figure 7 A miniature industrial camera 10 is arranged below the hollow area in the middle of the mounting bracket 12, and a miniature industrial camera 10 is arranged correspondingly on each of the remaining surfaces to ensure the image acquisition effect.

[0151] In this embodiment, the first analysis and warning unit is connected to the flip and deformation detection unit, and the second analysis and warning unit is connected to the humidity detection unit and the first analysis and warning unit. The entire flip and deformation detection and warning system is powered by a battery with a charging function, and a hydrogen fuel cell can charge the battery.

[0152] In this embodiment, the method for the deformation detection and early warning system to perform battery compartment flipping and deformation monitoring and early warning is as follows:

[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 recorded as P1, and acquires complete images of the remaining five sides of the battery compartment, which are recorded as side i, i=2, 3, 4, 5, 6, and 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;

[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 collection module, then performs binarization processing, and finally extracts contours from the obtained binary images; in this embodiment, the contour extraction is implemented by using the Canny algorithm;

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

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

[0158] S3, the first analysis and early warning unit compares the image obtained in step S2 with the standard image pre-stored internally, and determines whether the current battery compartment has a risk of flipping or has flipped, and the deformation level of the battery compartment according to 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 an image acquisition module to acquire an image of a battery compartment that is intact and not deformed and installed in the battery installation cavity in advance, and use the acquired 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, corresponding to side 2, side 3, side 4, side 5, 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 the 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 inner region of the standard outline of the first detection pattern PB-ROI1 ;

[0166] 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 second detection pattern on each battery compartment side i Bi ;

[0167] 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;

[0168] S3-2, obtaining the area S of the inner region of the first detection pattern contour 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 , 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;

[0170] S3-3. Analysis and judgment:

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

[0172] when And for any image P-ROI i , both 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 the battery 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 , 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; this means 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 early warning unit determines whether there is a risk of leakage in the battery compartment according to 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:

[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 T is selected, it is determined that there is no liquid leakage in the battery compartment; in this embodiment, as an illustration, T RH =30%;

[0184] S4-2, when humidity value RH>T RH , and when the judgment result of the first analysis and early warning unit is no deformation or slight deformation, it is judged that there is no risk of liquid leakage in the battery compartment, the dehumidification is turned on, and an early 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; wherein the dehumidification measure can be achieved by setting a ventilation fan in the battery installation cavity;

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

[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 is damaged and causes 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 immediately stopped from use; in this embodiment, as an illustration, t is selected max =10min;

[0189] If the dehumidification duration does not exceed t max The humidity value RH is reduced to no more than T RH , the humidity in the battery installation cavity will continue to be monitored within T time after the dehumidification is completed. If the humidity value increase rate η within T time is greater than the set threshold value T 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 represents the maximum value of the humidity in the battery installation cavity detected by the humidity detection unit within 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 is performed. During the manual detection, for liquid leakage, the battery compartment is manually directly tested for liquid leakage. The detection results of the flip and deformation detection and early warning system are recorded as automatic monitoring results, and the results of manual detection are 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 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 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 early warning system; the hydrogen-powered two-wheeled vehicle body is provided with a battery installation cavity, a battery compartment is fixedly installed in the battery installation cavity, and the hydrogen fuel cell is arranged inside the battery compartment; The flipping and deformation detection and early warning system is used to realize flipping and deformation monitoring and early warning of the battery compartment, and to determine whether there is a risk of leakage in the battery compartment; The overturning and deformation detection and early warning system comprises an overturning and deformation detection unit, a humidity detection unit, a first analysis and early warning unit and a second analysis and early warning unit; The flip and deformation detection unit adopts 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 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. The second analysis and early 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 results of the first analysis and early warning unit.

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 in a rectangular shape, and its bottom surface is fixed to the bottom surface of the battery installation cavity through 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; 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, wherein 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.

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 in all the battery compartment sides is the same, which is n, where 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 flip and deformation detection unit includes an image acquisition module and an image processing module, the image acquisition module acquires an image of the area on the bottom surface of the battery compartment including the first detection pattern, and a complete image 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.

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: The method of the deformation detection and early warning system for performing battery compartment flipping, deformation monitoring and early warning is as follows: 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 recorded as P1, and acquires complete images of the remaining five sides of the battery compartment, which are recorded as side i, i=2, 3, 4, 5, 6, and 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 collection module, then performs binarization processing, and finally extracts contours from the obtained binary images; For the image P1, after performing contour extraction, an image P-ROI1 including the contour of the first detection pattern is obtained; For the image P i , i = 2, 3, 4, 5, 6, after contour extraction, the image P-ROI containing the edge contour of the battery compartment side and the contrasting graphic contour is obtained i ; S3, the first analysis and early warning unit compares the image obtained in step S2 with the standard image pre-stored internally, and determines whether there is a risk of overturning of the current battery compartment or overturning occurs and the deformation level of the battery compartment according to the comparison result; 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 according to 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: S4-1, when the humidity value RH detected by the humidity detection unit is not greater than the set threshold value T RH It is determined that there is no liquid leakage in the battery compartment; S4-2, when humidity value RH>T RH , and when the judgment result of the first analysis and early warning unit is no deformation or slight deformation, it is judged that there is no risk of liquid leakage in the battery compartment, the dehumidification is turned on, and an early 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 judgment result of the first analysis and warning unit is dangerous deformation, it is judged that there is a risk of liquid leakage in the battery compartment, and a warning signal of liquid leakage and immediate stop of use is issued; S4-4, when humidity value RH>T RH , and when the judgment result of the first analysis and early 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 , determine that there is a risk of liquid leakage in the battery compartment, and issue an early warning signal of liquid leakage and immediately stop using the battery; If the dehumidification duration does not exceed t max The humidity value RH is reduced to no more than T RH , the humidity in the battery installation cavity will continue to be monitored within T time after the dehumidification is completed. If the humidity value increase rate η within T time is greater than the set threshold value T 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 T time after the 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 an image acquisition module to acquire an image of a battery compartment that is intact and not deformed and installed in the battery installation cavity in advance, and use the acquired 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, corresponding to side 2, side 3, side 4, side 5, 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 the 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 inner region 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 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 ; S3-2, obtaining the area S of the inner region of the first detection pattern contour 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 , 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; S3-3. Analysis and judgment: S3-3-1. Flip judgment: when And for any image P-ROI i , both 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 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; 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 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; 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,And S1 =0.15-0.75,And 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 also includes 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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