Vehicle protection test method, system, device and computer readable storage medium

Abstract

A vehicle protection test method, system, device and computer readable storage medium belong to the technical field of vehicle safety test, comprising collecting original feature information of a to-be-monitored area on a vehicle, then placing the vehicle in a plurality of preset road conditions, controlling the driving action of the vehicle, and collecting the final feature information of the to-be-monitored area on the vehicle after driving; combining the original feature information and the final feature information, processing to obtain the covered area of the to-be-monitored area coated by pollutants in the driving process; combining the to-be-monitored area and the covered area, processing to obtain a protection effect score, and the covered area is negatively correlated with the protection effect score. The application can comprehensively and accurately obtain the pollutant coverage area of the vehicle under different road conditions and according to different driving actions, so as to obtain an accurate protection effect score.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle safety testing, in particular to a vehicle protection test method, system, device and computer readable storage medium. BACKGROUND

[0002] With the development of the automobile industry, consumers' requirements for the neatness and seniority of vehicle appearance are increasing. However, in actual driving, pollutants are often splashed on the vehicle, which may be mud on the road in rainy days or sand in sand-dust weather. The attachment of pollutants on the vehicle not only affects the appearance of the vehicle, but also may cause damage to the vehicle, for example, when mud is splashed, it may be attached to the surface of the bumper through the gap between the bumper and the fender. If it cannot be cleaned in time subsequently, it will not only affect the appearance of the vehicle, but also damage the protective layer on the surface of the bumper, accelerate the damage of the bumper and reduce the expected service life of the bumper.

[0003] In view of the problem of attachment of pollutants on the surface of the vehicle, existing automobile manufacturers generally improve the coating of the vehicle to hope that the pollutants are difficult to attach to the surface of the vehicle, or improve the structural design of the vehicle to hope that the pollutants cannot be attached to the key protection area on the surface of the vehicle, but none of them proposes a specific method for effectively detecting the protection test effect of the vehicle. Generally, the protection result of the vehicle is evaluated by a subjective evaluation method, which is difficult to reflect the real protection effect and has poor accuracy. SUMMARY

[0004] The present application provides a vehicle protection test method, system, device and computer readable storage medium, which can solve the technical problem of lack of accurate evaluation method for vehicle protection test effect in the prior art.

[0005] In a first aspect, the embodiments of the present application provide a vehicle protection test method, which comprises:

[0006] After collecting the original feature information of the to-be-monitored area on the vehicle, the vehicle is placed in a plurality of preset road conditions, the driving action of the vehicle is controlled, and the final feature information of the to-be-detected area on the vehicle is collected after driving ends;

[0007] The original feature information and the final feature information are combined to process the covered area of the to-be-monitored area coated by the pollutants in the driving process;

[0008] The protection effect score is processed by combining the to-be-monitored area and the covered area, and the covered area is negatively correlated with the protection effect score.

[0009] In combination with the first aspect, in an implementation mode, the original feature information and the final feature information are both image data of the to-be-monitored area.

[0010] In an implementation of the first aspect, the original feature information and the final feature information are both wavelength reflection data of the to-be-detected region.

[0011] In an implementation of the first aspect, the processing of the original feature information and the final feature information to obtain the covered area of the to-be-monitored region coated by the pollutant during the driving process specifically includes the following steps:

[0012] The original feature information and the final feature information are compared, and a set of position points with different comparison results is taken as the covered area.

[0013] In an implementation of the first aspect, the road condition environment includes road material and road water depth.

[0014] In an implementation of the first aspect, the road condition environment further includes wind speed and ambient temperature.

[0015] In an implementation of the first aspect, the driving action includes vehicle speed, vehicle acceleration, vehicle direction, and vehicle steering angle.

[0016] In a second aspect, an embodiment of the present application provides a vehicle protection test system, which includes:

[0017] a test control module, configured to collect original feature information of a to-be-monitored region on a vehicle, place the vehicle in a plurality of preset road condition environments, control driving action of the vehicle, and collect final feature information of the to-be-monitored region on the vehicle after the driving ends;

[0018] a data processing module, configured to process the original feature information and the final feature information to obtain a covered area of the to-be-monitored region coated by a pollutant during the driving process, and process the to-be-monitored region and the covered area to obtain a protection effect score, the covered area being negatively correlated with the protection effect score.

[0019] In a third aspect, an embodiment of the present application provides a vehicle protection test device, which includes a processor, a memory, and a vehicle protection test program stored in the memory and executable by the processor, wherein the vehicle protection test program is executed by the processor to implement the steps of the vehicle protection test method.

[0020] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, which stores a vehicle protection test program, wherein the vehicle protection test program is executed by a processor to implement the steps of the vehicle protection test method.

[0021] The technical scheme provided by the embodiments of the present application has the beneficial effects of:

[0022] The original feature information of the to-be-monitored area on the vehicle is collected before testing, the vehicle is placed in a plurality of preset road conditions during testing, the driving action of the vehicle is controlled, and the final feature information of the to-be-monitored area on the vehicle is collected at the end of testing. The covered area of the to-be-monitored area coated by pollutants in the driving process can be obtained by combining the original feature information and the final feature information. The protection effect score can be obtained by combining the to-be-monitored area and the covered area. By this method, the pollutant covered area of the vehicle when driving in different road conditions according to different driving actions can be comprehensively and accurately obtained, so that the accurate protection effect score can be obtained. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The flowchart of the vehicle protection test method according to an embodiment of the present application is shown in the figure.

[0024] Figure 2 The functional module diagram of the vehicle protection test system device according to an embodiment of the present application is shown in the figure.

[0025] Figure 3 The hardware structure diagram of the vehicle protection test equipment involved in the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0026] In order to enable personnel in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0027] In order to make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

[0028] In a first aspect, the embodiments of the present application provide a vehicle protection test method.

[0029] In an embodiment, with reference to Figure 1 , Figure 1 The flowchart of the first embodiment of the vehicle protection test method according to the present application is shown in the figure. As shown in the figure, the vehicle protection test method comprises: Figure 1

[0030] ​Step S1, after collecting the original feature information of the to-be-monitored area on the vehicle, the vehicle is placed in a plurality of preset road conditions, the driving action of the vehicle is controlled, and the final feature information of the to-be-monitored area on the vehicle is collected after driving.

[0031] Step S2, the original feature information and the final feature information are combined, and the covered area of the to-be-monitored area coated by the pollutant during driving is processed.

[0032] Step S3, the to-be-monitored area and the covered area are combined, and the protection effect score is processed, and the covered area is negatively correlated with the protection effect score.

[0033] In this embodiment, the original feature information of the to-be-monitored area on the vehicle is collected before testing, the vehicle is placed in a plurality of preset road conditions during testing, the driving action of the vehicle is controlled, and the final feature information of the to-be-monitored area on the vehicle is collected at the end of testing. The original feature information and the final feature information are combined, and the covered area of the to-be-monitored area coated by the pollutant during driving is processed. The to-be-monitored area and the covered area are combined, and the protection effect score is processed. By this method, the pollutant covered area of the vehicle under different road conditions and according to different driving actions can be comprehensively and accurately obtained, so as to obtain an accurate protection effect score.

[0034] Further, in an embodiment, the original feature information and the final feature information are both image data of the to-be-monitored area.

[0035] In this embodiment, before the vehicle protection test starts, the original image of the to-be-monitored area, such as the bumper, on the vehicle is collected by an image collection device. After the vehicle protection test starts, the vehicle is placed in different preset road conditions. In each road condition, the vehicle is controlled to drive according to the specified driving action. After the vehicle protection test ends, the final image of the to-be-monitored area, such as the bumper, on the vehicle is collected again by the image collection device. The original image of the to-be-monitored area and the final image of the to-be-monitored area are combined for data analysis to obtain the covered area of the to-be-monitored area coated by the pollutant after driving in the specified road condition according to the specified driving action. The larger the covered area, the more serious the coating by the pollutant. The covered area and the to-be-monitored area are combined for data analysis to obtain the protection effect score of the to-be-monitored area after driving in the specified road condition according to the specified driving action. The higher the protection effect score, the better the protection effect. Thus, the protection capability of the vehicle after driving in different road conditions according to different driving actions can be comprehensively and accurately analyzed. Subsequently, the vehicle manufacturer can optimize the protection design of the vehicle according to the test results, so as to improve the protection effect of the vehicle after being put on the market and improve the user evaluation.

[0036] Further, in an embodiment, after the vehicle drives according to a set of driving actions in a road condition environment, a protection effect score is obtained, then the vehicle's to-be-monitored region is restored to be consistent with the state presented by the original image, and then the vehicle starts to drive again according to a new set of driving actions in a new road condition environment, and a protection effect score is obtained again. After the vehicle drives according to all the preset driving actions in all the preset road condition environments, all the protection effect scores are weighted and summed to obtain a total score that can represent the protection effect of the vehicle. The weight of the weighting is related to the road condition environment of the driving area of the vehicle after it is actually put into the market. For example, the driving area of the vehicle after it is actually put into the market can be obtained according to historical statistical information. In combination with the historical statistical information, if the vehicle actually drives in rainy days, the protection effect score obtained by testing the vehicle in rainy days is multiplied by a higher weight, and the protection effect score obtained by testing the vehicle in dusty weather is multiplied by a lower weight, so that the protection effect score of the vehicle is more in line with the actual needs of the user.

[0037] Further, in an embodiment, the original feature information and the final feature information are both wavelength reflection data of the to-be-detected region.

[0038] In this embodiment, the wavelength reflection technology can detect a variety of information, including but not limited to the surface structure and composition of the object. This technology obtains the relevant information of the object by analyzing the reflection characteristics of light, and is suitable for various fields such as medical diagnosis, material science, etc. In the field of material science, the wavelength reflection technology can be used to analyze the surface structure and composition of materials. The surface reflection characteristics of different materials are different, and by measuring the wavelength and intensity of the reflected light, the composition and structure information of the material can be inferred.

[0039] Before the vehicle protection test starts, the signal sending device sends a signal of a specified wavelength to the area to be monitored on the vehicle, and then the wavelength reflection signal of the area to be monitored on the vehicle, for example, the original wavelength reflection signal of the bumper, is collected. After the vehicle protection test starts, the vehicle is placed in different preset road conditions respectively, in each road condition, the vehicle is controlled to drive according to a specified driving action. After the vehicle protection test ends, the signal sending device sends a signal of a specified wavelength to the area to be monitored on the vehicle again, and then the wavelength reflection signal of the area to be monitored on the vehicle, for example, the final wavelength reflection signal of the bumper, is collected. Since the wavelength reflection signals of the vehicle surface when it is not coated with pollutants and when it is coated with pollutants are different, the original wavelength reflection signal of the area to be detected and the final wavelength reflection signal of the area to be monitored are combined for data analysis to obtain the covered area of the area to be monitored after being coated with pollutants when the vehicle drives according to the specified driving action in the specified road condition. The larger the covered area is, the more serious the coating with pollutants is. The covered area and the area to be monitored are combined for data analysis to obtain the protection effect score of the area to be monitored after driving according to the specified driving action in the specified road condition. The higher the protection effect score is, the better the protection effect is. Thus, the protection capability of the vehicle after driving according to different driving actions in different road conditions is comprehensively and accurately analyzed. The vehicle protection design can be optimized according to the test results, so as to improve the protection effect of the vehicle after being put on the market and improve the user evaluation.

[0040] Further, in an embodiment, the original feature information and the final feature information are combined to process the covered area of the area to be monitored coated with pollutants during driving, specifically including the following steps:

[0041] The original feature information and the final feature information are compared, and the position points with different comparison results are collected as the covered area.

[0042] In this embodiment, when the feature information is image data, the total image area in the original feature information and the pollutant covered area image area in the final feature information are directly identified by using an image recognition algorithm, or the two image areas are compared. The position points with different comparison results are the pollutant covered area.

[0043] In a specific embodiment, when collecting the original feature information, a developing agent is coated on the area to be monitored. After the developing agent is evenly coated, the image collection system records by taking a picture. After the test, the system takes a picture again to record the mud splashing situation. The collected images are analyzed and processed. The photographed pictures are cut by gridding, so as to calculate the proportion of the area washed by water to the entire bumper side surface. According to the proportion, different steps are set. The splashing performance of different competitive vehicles is judged in combination with the design requirements of the vehicle enterprises.

[0044] The calculation formula is: splashing degree (%) = the number of grids of the rainwater flushing area (X) / the number of grids of the developer application area (Y).

[0045] In the case of a road material of soil: splashing degree (A%), weight a%.

[0046] In the case of a road material of sand: splashing degree (B%), weight b%.

[0047] In the case of a road material of gravel: splashing degree (C%), weight c%.

[0048] The comprehensive splashing degree = splashing degree (A%) x a% + splashing degree (B%) x b% + splashing degree (C%) x c%,

[0049] If the comprehensive splashing degree of the A vehicle is less than 50%, the protective performance judgment result is qualified.

[0050] If the comprehensive splashing degree of the B vehicle is less than 40%, the protective performance judgment result is qualified.

[0051] If the comprehensive splashing degree of the C vehicle is less than 30%, the protective performance judgment result is qualified.

[0052] If the comprehensive splashing degree of the D vehicle is less than 20%, the protective performance judgment result is unqualified.

[0053] The bumper side is evenly coated with a developer, and the device can ensure that the developer is evenly coated on the bumper side, avoid observation errors caused by uneven coating, and facilitate observation of the splashing protection condition. The developer has good adhesion and visibility, and will not damage the bumper.

[0054] Further, in an embodiment, the road condition environment includes a road material and a road surface water depth.

[0055] In this embodiment, the road material can be soil, sand, gravel, etc., and the road surface water depth can be set according to the test requirements. For example, in a certain road condition environment, the specific test environment is set to asphalt pavement, water depth of 4 cm, and length of 200 meters, and the vehicle is controlled to drive on the road at different driving operations, and then the protective effect of the vehicle is tested.

[0056] Further, in an embodiment, the road condition environment also includes a wind speed and an environmental temperature.

[0057] In this embodiment, considering that the wind speed and the environmental temperature can also affect whether the pollutants are easily attached to the vehicle, when testing the protective performance of the vehicle, different wind speeds and environmental temperatures can also be set to comprehensively analyze the factors affecting the protective performance of the vehicle.

[0058] Furthermore, in one embodiment, the driving action includes vehicle speed, vehicle acceleration, vehicle direction, and vehicle steering angle.

[0059] This embodiment simulates the vehicle's driving, braking, and steering operations at different speeds. It precisely controls the vehicle's speed, braking force, and steering angle. This precise control of the vehicle's speed at different speeds simulates various speed changes encountered in real-world road driving. By adjusting the braking force and steering angle, it simulates complex driving scenarios such as emergency braking and sharp turns.

[0060] For example: 50 meters per hour, walk back and forth 20 times, brake to a deceleration of 0.4G, while braking, turn left 45 degrees, then straighten the steering wheel, then turn right 45 degrees, and then stop.

[0061] In summary, this invention provides a standardized testing method and apparatus that can accurately evaluate the protective performance of vehicle bumpers, such as their ability to prevent mud splashing under muddy road conditions, thus providing automakers with a basis for improving their designs.

[0062] Secondly, embodiments of this application also provide a vehicle protection testing system.

[0063] In one embodiment, reference is made to Figure 2 , Figure 2 This is a functional module diagram of an embodiment of the vehicle protection testing device of this application. Figure 2 As shown, the vehicle protection testing device includes:

[0064] Test control module 1 is used to collect the original feature information of the area to be monitored on the vehicle, place the vehicle in various preset road conditions, control the vehicle's driving actions, and collect the final feature information of the area to be monitored on the vehicle after the driving is completed.

[0065] Data processing module 2 combines raw and final feature information to obtain the coverage area of ​​the monitored area coated with pollutants during operation. It also combines the monitored area and the coverage area to obtain a protection effectiveness score, with the coverage area and protection effectiveness score showing a negative correlation.

[0066] In this embodiment, the original feature information of the area to be monitored on the vehicle is collected before the test. During the test, the vehicle is placed in various preset road conditions and its driving actions are controlled. At the end of the test, the final feature information of the area to be monitored on the vehicle is collected. By combining the original feature information and the final feature information, the area covered by pollutants during the driving process can be obtained. By combining the area to be monitored and the covered area, the protection effect score can be obtained. This method can comprehensively and accurately obtain the pollutant coverage area of ​​the vehicle under different road conditions and driving actions, thereby obtaining an accurate protection effect score.

[0067] Further, in an embodiment, the original feature information and the final feature information are both image data of the to-be-monitored region.

[0068] In this embodiment, before the vehicle protection test starts, the image acquisition device acquires the original image of the to-be-monitored region, such as the bumper, on the vehicle. After the vehicle protection test starts, the vehicle is placed in different preset road conditions. In each road condition, the vehicle is controlled to travel according to the specified driving action. After the vehicle protection test ends, the image acquisition device acquires the final image of the to-be-monitored region, such as the bumper, on the vehicle again. The original image of the to-be-monitored region and the final image of the to-be-monitored region are combined for data analysis to obtain the covered area of the to-be-monitored region after being contaminated and coated by the coating after the to-be-monitored region travels according to the specified driving action in the specified road condition. The larger the covered area, the more serious the contamination and coating. The covered area and the to-be-monitored region are combined for data analysis to obtain the protection effect score of the to-be-monitored region after the to-be-monitored region travels according to the specified driving action in the specified road condition. The higher the protection effect score, the better the protection effect. Thus, the protection capability of the vehicle after traveling in different road conditions according to different driving actions is comprehensively and accurately analyzed. Subsequently, the vehicle manufacturer can optimize the protection design of the vehicle according to the test results to improve the protection effect of the vehicle after being put on the market and improve the user evaluation.

[0069] Further, in an embodiment, after the vehicle travels according to a set of driving actions in a road condition, a protection effect score is obtained. Then, the to-be-monitored region of the vehicle is restored to be consistent with the state presented in the original image. Then, the vehicle starts to travel again according to a new set of driving actions in a new road condition. Then, a protection effect score is obtained again. After the vehicle travels according to all the preset driving actions in all the preset road conditions, all the protection effect scores are weighted and summed to obtain a total score that can represent the protection effect of the vehicle. The weight of the weighting is related to the road conditions of the actual driving area of the vehicle after being put on the market. For example, the actual driving area of the vehicle after being put on the market can be obtained according to historical statistical information. In combination with the historical statistical information, if the actual driving area of the vehicle is mostly rainy days, the protection effect score of the vehicle obtained by the test in the rainy day environment is multiplied by a higher weight, and the protection effect score of the vehicle obtained by the test in the dusty weather is multiplied by a lower weight. Thus, the protection effect score of the vehicle is more in line with the actual needs of the user.

[0070] Further, in an embodiment, the original feature information and the final feature information are both wavelength reflection data of the to-be-monitored region.

[0071] In this embodiment, the wavelength reflection technology can detect various information, including but not limited to the surface structure and composition of the object. This technology obtains relevant information of the object by analyzing the reflection characteristics of light, and is suitable for various fields such as medical diagnosis, material science, etc. In the field of material science, the wavelength reflection technology can be used to analyze the surface structure and composition of the material. The surface reflection characteristics of different materials are different, and by measuring the wavelength and intensity of the reflected light, the composition and structure information of the material can be inferred.

[0072] Before the vehicle protection test starts, the signal sending device sends a signal of a specified wavelength to the area to be monitored on the vehicle, and then collects the wavelength reflection signal of the area to be monitored on the vehicle, for example, the original wavelength reflection signal of the bumper. After the vehicle protection test starts, the vehicle is placed in different preset road conditions respectively, and in each road condition, the vehicle is controlled to drive according to the specified driving action. After the vehicle protection test ends, the signal sending device sends a signal of a specified wavelength to the area to be monitored on the vehicle again, and then collects the wavelength reflection signal of the area to be monitored on the vehicle, for example, the final wavelength reflection signal of the bumper. Since the wavelength reflection signals of the vehicle surface when it is not coated with pollutants and when it is coated with pollutants are different, the original wavelength reflection signal of the area to be detected and the final wavelength reflection signal of the area to be monitored are combined for data analysis to obtain the covered area of the area to be monitored after being coated with pollutants when the vehicle drives according to the specified driving action in the specified road condition. The larger the covered area, the more serious the coating of the pollutants. The covered area and the area to be monitored are combined for data analysis to obtain the protection effect score of the area to be monitored after driving according to the specified driving action in the specified road condition. The higher the protection effect score, the better the protection effect. Thus, the protection capability of the vehicle after driving in different road conditions according to different driving actions is comprehensively and accurately analyzed. Subsequently, the vehicle manufacturer can optimize the protection design of the vehicle according to the test results, so as to improve the protection effect of the vehicle after being put on the market and improve the user evaluation.

[0073] Further, in an embodiment, the original feature information and the final feature information are combined to obtain the covered area of the area to be monitored coated with pollutants during driving, specifically including the following steps:

[0074] The original feature information and the final feature information are compared, and the position points with different comparison results are collected as the covered area.

[0075] In this embodiment, when the feature information is image data, the total image area in the original feature information and the pollutant covered area image area in the final feature information are directly identified by using an image recognition algorithm, or the two image areas are compared. The position points with different comparison results are the pollutant covered area.

[0076] In one specific embodiment, when collecting the original feature information, a developing agent is applied to the area to be monitored. After the developing agent is evenly applied, the image acquisition system records by taking a picture. After the test, the system takes another picture to record the splashing mud condition. The collected images are analyzed and processed. The photographed pictures are cut into grids to calculate the proportion of the area washed by water to the entire bumper side. Different steps are set according to the proportion, combined with the design requirements of the vehicle enterprise, to judge the pros and cons of the splashing mud performance of different competitive vehicles.

[0077] The calculation formula is: splashing mud degree (%) = number of grids of rainwater washing area (X) / number of grids of developing agent application area (Y).

[0078] In the working condition of road material being soil: splashing mud degree (A%), weight a%.

[0079] In the working condition of road material being sand: splashing mud degree (B%), weight b%.

[0080] In the working condition of road material being gravel: splashing mud degree (C%), weight c%.

[0081] Comprehensive splashing mud degree = splashing mud degree (A%) x a% + splashing mud degree (B%) x b% + splashing mud degree (C%) x c%,

[0082] If the comprehensive splashing mud degree of vehicle A is <50%, the protection performance judgment result is qualified.

[0083] If the comprehensive splashing mud degree of vehicle B is <40%, the protection performance judgment result is qualified.

[0084] If the comprehensive splashing mud degree of vehicle C is <30%, the protection performance judgment result is qualified.

[0085] If the comprehensive splashing mud degree of vehicle D is <20%, the protection performance judgment result is unqualified.

[0086] The developing agent is evenly applied to the bumper side by the device, which can ensure that the developing agent is evenly applied to the bumper side, avoid observation errors caused by uneven application, and facilitate observation of the splashing protection condition. The developing agent has good adhesion and visibility, and will not damage the bumper.

[0087] Further, in one embodiment, the road condition environment includes road material and road water depth.

[0088] In this embodiment, the road material can be soil, sand, gravel, etc., and the road water depth can be set according to the test requirements. For example, in a certain road condition environment, the specific test environment is set as asphalt pavement, water depth of 4 cm, and length of 200 meters. The vehicle is controlled to drive on the road with different driving operations, and then the protection effect of the vehicle is tested.

[0089] Further, in an embodiment, the road condition environment further includes wind speed and ambient temperature.

[0090] In this embodiment, considering that wind speed and ambient temperature can also affect whether the pollutants are easy to adhere to the vehicle, when testing the protection performance of the vehicle, different wind speeds and ambient temperatures can also be set to comprehensively analyze the factors affecting the protection performance of the vehicle.

[0091] Further, in an embodiment, the driving action includes vehicle speed, vehicle acceleration, vehicle direction, and vehicle steering angle.

[0092] In this embodiment, the driving, braking and steering operations of the vehicle at different speeds are simulated. The speed, braking force and steering angle of the vehicle are precisely controlled. The driving of the vehicle at different speeds is precisely controlled to simulate various speed changes in actual road driving. By adjusting the braking force and the steering angle, complex driving scenarios such as emergency braking and sharp turning are simulated.

[0093] For example: 50 meters / hour, walk back and forth 20 times, braking deceleration 0.4G, steering left 45 degrees while braking, then return the steering wheel, then steer right 45 degrees, and then stop.

[0094] In summary, the present application provides a standardized test method and device, which can accurately evaluate the splash protection ability of the vehicle bumper on the muddy road surface and provide a basis for improving the design for the vehicle enterprises.

[0095] The functions of each module in the vehicle protection test device correspond to the steps in the vehicle protection test method embodiments, and the functions and implementation processes will not be repeated here.

[0096] In a third aspect, the embodiments of the present application provide a vehicle protection test device. The vehicle protection test device can be a personal computer (PC), a notebook computer, a server, or other devices with data processing functions.

[0097] Reference Figure 3 , Figure 3 The figure is a schematic diagram of the hardware structure of the vehicle protection test device involved in the embodiments of the present application. In the embodiments of the present application, the vehicle protection test device can include a processor, a memory, a communication interface, and a communication bus.

[0098] The communication bus can be of any type and is used to interconnect the processor, the memory, and the communication interface.

[0099] The communication interface includes an input / output (I / O) interface, a physical interface, and a logical interface, and the like, which are used to realize the interconnection of devices inside the vehicle protection test equipment, and an interface used to realize the interconnection of the vehicle protection test equipment and other devices (for example, other computing devices or user devices). The physical interface can be an Ethernet interface, a fiber interface, an ATM interface, and the like. The user device can be a display (Display), a keyboard (Keyboard), and the like.

[0100] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), and the like.

[0101] The processor can be a general-purpose processor, which can invoke the vehicle protection test program stored in the memory and execute the vehicle protection test method provided by the embodiments of the present application. For example, the general-purpose processor can be a central processing unit (CPU). The method executed when the vehicle protection test program is invoked can refer to various embodiments of the vehicle protection test method of the present application, which will not be described here.

[0102] Those skilled in the art can understand that Figure 3 The hardware structure shown in the foregoing embodiments does not constitute a limitation on the present application, and can include more or fewer components than those shown in the figure, or combine certain components, or different arrangement of components.

[0103] In the embodiment, the original feature information of the to-be-monitored area on the vehicle is collected before testing, the vehicle is placed in a plurality of preset road conditions during testing, the driving action of the vehicle is controlled, and the final feature information of the to-be-monitored area on the vehicle is collected at the end of testing. The covering area of the to-be-monitored area coated by pollutants in the driving process can be processed by combining the original feature information and the final feature information. The protection effect score can be processed by combining the to-be-monitored area and the covering area. By the method, the pollutant covering area of the vehicle when driving in different road conditions according to different driving actions can be comprehensively and accurately obtained, so that the accurate protection effect score is obtained.

[0104] In a fourth aspect, the embodiments of the present application further provide a computer readable storage medium.

[0105] The computer readable storage medium stores a vehicle protection test program, and the vehicle protection test program, when executed by a processor, implements the steps of the vehicle protection test method.

[0106] The method implemented when the vehicle protection test program is executed can refer to the embodiments of the vehicle protection test method of the present application, which will not be described here again.

[0107] In the embodiment, the original feature information of the to-be-monitored area on the vehicle is collected before the test, the vehicle is placed in a plurality of preset road conditions during the test, the driving action of the vehicle is controlled, and the final feature information of the to-be-monitored area on the vehicle is collected at the end of the test. The covered area of the to-be-monitored area coated by the pollutant in the driving process can be processed by combining the original feature information and the final feature information. The protection effect score can be processed by combining the to-be-monitored area and the covered area. Through the method, the pollutant covered area of the vehicle in different road conditions according to different driving actions can be comprehensively and accurately obtained, so that the accurate protection effect score can be obtained.

[0108] It should be noted that the serial numbers of the embodiments of the present application described above are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0109] The terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the above-described drawings are intended to cover not exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to the process, method, product or device. The terms "first", "second" and "third" and the like descriptions are used to distinguish different objects, and do not represent the order or limit the types of "first", "second" and "third".

[0110] In the description of the embodiments of the present application, "exemplary", "for example" or "for instance" is used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplary", "for example" or "for instance" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. In fact, the words "exemplary", "for example" or "for instance" are intended to present the relevant concept in a specific manner.

[0111] In the description of the embodiments of the present application, unless otherwise specified, " / " means the meaning of or, for example, A / B can mean A or B. The "and / or" in the text only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist together, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0112] In some processes described in the embodiments of the present application, a plurality of operations or steps are included in a specific order, but it should be understood that these operations or steps can be executed or executed in parallel without the order in which they appear in the embodiments of the present application. The serial number of the operation is only used to distinguish different operations, and the serial number itself does not represent any execution order. In addition, these processes can include more or fewer operations, and these operations or steps can be executed in sequence or in parallel, and these operations or steps can be combined.

[0113] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment method can be realized by software and the necessary general hardware platform, of course, it can also be realized by hardware, but in many cases the former is the better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, an optical disk) as described above, and includes a plurality of instructions for making a terminal device execute the method described in each embodiment of the present application.

[0114] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A vehicle protection testing method, characterized in that, The vehicle protection testing method includes: After collecting the original feature information of the area to be monitored on the vehicle, the vehicle is placed in various preset road conditions. By controlling the vehicle's driving actions, the final feature information of the area to be monitored on the vehicle is collected after the driving ends. By combining the original feature information and the final feature information, the area covered by pollutants during the driving process of the area to be monitored is obtained. By combining the area to be monitored and the coverage area, a protection effectiveness score is obtained, and the coverage area is negatively correlated with the protection effectiveness score. When collecting raw feature information, a developer is applied to the area to be monitored. After the developer is evenly applied, the image acquisition system takes a picture to record the data. After the test, the system takes another picture to record the mud splashing situation and analyzes and processes the collected images. By dividing the photos into grids, the proportion of the area washed by water to the entire side of the bumper is calculated. Different steps are set according to this proportion, combined with the design requirements of car manufacturers, to judge the mud splashing performance of different competing vehicles. Calculation formula: Splatter density = Number of grids in the area washed by rainwater / Number of grids in the area covered by developer; When the road material is soil: mud splashing degree A, with a weight of a%; When the road material is sand: mud splashing degree B, with a weight of b%. When the road material is crushed stone: mud splashing degree C, weight is c%); Overall splashing degree = splashing degree A × a% + splashing degree B × b% + splashing degree C × c%; The vehicle's protective performance is judged based on the overall mud splashing degree.

2. The vehicle protection testing method as described in claim 1, characterized in that, Both the original feature information and the final feature information are image data of the area to be monitored.

3. The vehicle protection testing method as described in claim 1, characterized in that, Both the original feature information and the final feature information are wavelength reflection data of the area to be detected.

4. The vehicle protection testing method as described in claim 1, characterized in that, The process of combining the original feature information and the final feature information to obtain the area covered by pollutants in the monitored area during driving includes the following steps: The original feature information and the final feature information are compared, and the set of location points where the comparison results are different is taken as the coverage area.

5. The vehicle protection testing method as described in claim 1, characterized in that, The road conditions include road material and road surface water depth.

6. The vehicle protection testing method as described in claim 1, characterized in that, The road conditions also include wind speed and ambient temperature.

7. The vehicle protection testing method as described in claim 1, characterized in that, The driving actions include vehicle speed, vehicle acceleration, vehicle direction, and vehicle steering angle.

8. A vehicle protection testing system, characterized in that, The vehicle protection testing system includes: The test control module is used to collect the original feature information of the area to be monitored on the vehicle, place the vehicle in various preset road conditions, control the vehicle's driving actions, and collect the final feature information of the area to be monitored on the vehicle after the driving is completed. The data processing module is used to combine the original feature information and the final feature information to obtain the coverage area of ​​the area to be monitored that is coated by pollutants during the driving process; it is also used to combine the area to be monitored and the coverage area to obtain a protection effect score, wherein the coverage area is negatively correlated with the protection effect score. When collecting raw feature information, a developer is applied to the area to be monitored. After the developer is evenly applied, the image acquisition system takes a picture to record the data. After the test, the system takes another picture to record the mud splashing situation and analyzes and processes the collected images. By dividing the photos into grids, the proportion of the area washed by water to the entire side of the bumper is calculated. Different steps are set according to this proportion, combined with the design requirements of car manufacturers, to judge the mud splashing performance of different competing vehicles. Calculation formula: Splatter density = Number of grids in the area washed by rainwater / Number of grids in the area covered by developer; When the road material is soil: mud splashing degree A, with a weight of a%; When the road material is sand: mud splashing degree B, with a weight of b%. When the road material is crushed stone: mud splashing degree C, weight is c%); Overall splashing degree = splashing degree A × a% + splashing degree B × b% + splashing degree C × c%; The vehicle's protective performance is judged based on the overall mud splashing degree.

9. A vehicle protection testing device, characterized in that, The vehicle protection testing equipment includes a processor, a memory, and a vehicle protection testing program stored in the memory and executed by the processor, wherein when the vehicle protection testing program is executed by the processor, it implements the steps of the vehicle protection testing method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a vehicle protection test program, wherein when the vehicle protection test program is executed by a processor, it implements the steps of the vehicle protection test method as described in any one of claims 1 to 7.

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