A road surface strength information collection method and device, a storage medium and a vehicle

Abstract

The application discloses a kind of road surface strength information collection method, device, storage medium and vehicle, the method comprises: in the process of driving, respectively, the acceleration and speed information that acceleration sensor placed in vehicle is collected are obtained;The speed data contained in the speed information is integrated, the mileage data of this driving process is obtained, and the mileage data is divided into multiple mileage segments;According to the acceleration information, the root mean square value of the vertical acceleration of each mileage segment is obtained, and the road surface strength of each mileage segment is determined according to the root mean square value of the vertical acceleration.The application solves the problem that the accuracy is low due to the strong subjectivity of manual collection of road surface strength information in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a road surface strength information collection method and device, a storage medium and a vehicle. BACKGROUND

[0002] Road surface strength information is the key information of the user-test field correlation project, therefore, how to accurately and objectively represent road surface strength information becomes particularly important.

[0003] In the prior art, when collecting road surface strength information, the information is obtained in the form of a user questionnaire, and is represented by using description methods such as high-grade working conditions, urban working conditions, rural working conditions, mountain roads and bad roads. However, this method of obtaining road surface strength information is subjective and has low accuracy. SUMMARY

[0004] Therefore, the present application aims to provide a road surface strength information collection method and device, a storage medium and a vehicle, to solve the problem of low accuracy caused by subjective collection of road surface strength information in the prior art.

[0005] The embodiments of the present application are implemented as follows:

[0006] A road surface strength information collection method, the method comprising:

[0007] During the driving of a vehicle, acceleration collected by an acceleration sensor placed in the vehicle and speed information are obtained respectively;

[0008] The speed data contained in the speed information is integrated to obtain mileage data of the driving process, and the mileage data is divided into a plurality of mileage segments;

[0009] The root mean square value of the vertical acceleration of each mileage segment is obtained according to the acceleration information, and the road surface strength of each mileage segment is determined according to the root mean square value of the vertical acceleration.

[0010] Further, the road surface strength information collection method, wherein the step of determining the road surface strength of each mileage segment according to the root mean square value of the vertical acceleration comprises:

[0011] A target root mean square value, which is the maximum root mean square value of the vertical acceleration in all mileage segments, is obtained;

[0012] The range of root mean square value levels is divided according to the target root mean square value, and the root mean square value level corresponds to a road surface strength level;

[0013] According to the root mean square level to which the root mean square value of the vertical acceleration belongs, a corresponding road surface strength level to which the mileage segment belongs is determined.

[0014] Further, the road surface strength information acquisition method described above, wherein the step of dividing the range of the root mean square value level according to the target root mean square value comprises:

[0015] The maximum value and the minimum value of the root mean square value level are determined by a preset proportion of the target root mean square value respectively;

[0016] The range corresponding to the root mean square value level is determined according to the range covered by the maximum value and the minimum value of the root mean square value level.

[0017] Further, the road surface strength information acquisition method described above, wherein the step of dividing the mileage data into multiple mileage segments comprises:

[0018] The mileage data is divided into multiple equal segments according to the equal division principle.

[0019] Further, the road surface strength information acquisition method described above, wherein the method further comprises:

[0020] The collected road surface strength level and proportion are obtained, and user load spectrum data are collected;

[0021] According to the road surface strength level and proportion, and the user load spectrum data, the road surface level strength per unit mileage is calculated.

[0022] Further, the road surface strength information acquisition method described above, wherein the range of the root mean square value level comprises a first level, a second level, a third level, a fourth level, and a fifth level;

[0023] The range of the first level is 0~0.2RMS max , the range of the second level is 0.2 RMS max ~0.4RMS max , the range of the third level is 0.4 RMS max ~0.6RMS max , the range of the fourth level is 0.6 RMS max ~0.8RMS max , and the range of the fifth level is 0.8 RMS max ~1RMS max ;

[0024] Wherein, RMS max is the maximum value of the root mean square value of the vertical acceleration in all the mileage segments.

[0025] Further, the road surface strength information acquisition method, wherein the method further comprises:

[0026] The road surface strength information of the driving process is obtained by acquiring the road surface strength grades of the mileage and the proportion of each road surface strength grade during the driving process, and the road surface strength information is pushed to the user.

[0027] Another object of the present application is to provide a road surface strength information acquisition device, the device comprises:

[0028] The acquisition module is used to acquire the acceleration collected by the acceleration sensor arranged in the vehicle and the vehicle speed information during the driving process of the vehicle;

[0029] The integral module is used to integrate the vehicle speed data contained in the vehicle speed information, acquire the mileage data of the driving process, and divide the mileage data into a plurality of mileage segments;

[0030] The determination module is used to acquire the root mean square value of the vertical acceleration of each mileage segment according to the acceleration information, and determine the road surface strength of each mileage segment according to the root mean square value of the vertical acceleration.

[0031] Another object of the present application is to provide a readable storage medium, which stores a computer program, the program is executed by a processor to realize the steps of the method of any one of the above.

[0032] Another object of the present application is to provide an electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor executes the program to realize the steps of the method.

[0033] The present application acquires the acceleration collected by the acceleration sensor arranged in the vehicle and the vehicle speed information during the driving process of the vehicle, integrates the vehicle speed data contained in the vehicle speed information, acquires the mileage data of the driving process, and divides the mileage data into a plurality of mileage segments, acquires the root mean square value of the vertical acceleration of each mileage segment according to the acceleration information, and determines the road surface strength of each mileage segment according to the root mean square value of the vertical acceleration. Thus, based on the vehicle speed and acceleration information, the objective numerical value obtained through a series of calculations represents the road surface strength, avoiding the problem of subjective influence on the accuracy of road surface strength information, and solving the problem of low accuracy caused by subjective collection of road surface strength information in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The flowchart of the road surface strength information acquisition method in the first embodiment of the present application;

[0035] Figure 2 Figure 1 is a structural block diagram of a road surface strength information acquisition device according to a third embodiment of the present application.

[0036] The following detailed description will further describe the present application with reference to the above-mentioned drawings. DETAILED DESCRIPTION

[0037] For the purpose of promoting the understanding of the present application, the present application will be described more fully below with reference to the attached drawings. The present application is shown in several embodiments in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present application will be more thorough and complete.

[0038] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions as used herein are for the purpose of illustration only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] The following will describe in detail how to improve the accuracy of road surface information acquisition with reference to specific embodiments and drawings.

[0041] Embodiment One

[0042] Referring to Figure 1, a road surface strength information acquisition method according to a first embodiment of the present application is shown, which comprises steps S10-S12. Figure 1

[0043] Step S10, during the driving of the vehicle, the acceleration collected by the acceleration sensor placed in the vehicle and the speed information are obtained respectively.

[0044] In the present embodiment, an acceleration sensor chip is installed on the vehicle, so that the acceleration and speed information of the vehicle can be read during the driving of the vehicle. Specifically, when collecting road surface strength information, it is preferred to collect the information through a complete driving process, i.e. when the strength of a section of road needs to be collected, the vehicle is first driven to complete the section of road, and the corresponding data is collected to acquire the road surface strength information. ​

[0045] Step S11, integrating the vehicle speed data contained in the vehicle speed information to obtain mileage data of this driving process, and dividing the mileage data into multiple mileage segments.

[0046] The vehicle information at least contains vehicle speed data in this driving process, the vehicle speed data is integrated to obtain mileage data, the mileage data is cut into several segments, preferably, the mileage data is equally divided, so that the mileage data is divided into multiple equally divided segments, and each equally divided segment contains acceleration data in the mileage.

[0047] Step S12, obtaining the root mean square value of the vertical acceleration of each mileage segment according to the acceleration information, and determining the road surface strength of each mileage segment according to the root mean square value of the vertical acceleration.

[0048] The root mean square value of the acceleration in the vertical direction of each segment can well represent the strength of the road surface, and the road surface strength of the mileage segment can be determined according to the calculated root mean square value of the acceleration in the mileage segment.

[0049] In summary, the present application obtains the acceleration collected by the acceleration sensor placed in the vehicle and the vehicle speed information during the driving process of the vehicle; integrates the vehicle speed data contained in the vehicle speed information to obtain mileage data of this driving process, and divides the mileage data into multiple mileage segments; obtains the root mean square value of the vertical acceleration of each mileage segment according to the acceleration information, and determines the road surface strength of each mileage segment according to the root mean square value of the vertical acceleration. Thus, based on the vehicle speed and acceleration information, the objective numerical value obtained through a series of calculations represents the road surface working condition strength, avoids the problem of affecting the accuracy of the road surface strength information caused by human subjective judgment, and solves the problem of low accuracy caused by strong subjectivity of manual collection of road surface strength information in the prior art.

[0050] Embodiment two

[0051] The road surface strength information collection method in this embodiment is different from the road surface strength information collection method in embodiment one in that:

[0052] The step of determining the road surface strength of each mileage segment according to the root mean square value of the vertical acceleration comprises:

[0053] Obtaining the maximum target root mean square value of the root mean square value of the vertical acceleration in all the mileage segments;

[0054] According to the range of the root mean square value level divided according to the target root mean square value, the root mean square value level corresponds to a road surface strength level;

[0055] According to the root mean square level to which the root mean square value of the vertical acceleration belongs, the road surface strength level to which the corresponding mileage segment belongs is determined.

[0056] Among them, the acceleration root mean square level is set, the acceleration root mean square level to which the segment belongs is determined according to the obtained acceleration root mean square value, and each acceleration root mean square level corresponds to a road surface strength level, so that the road surface strength level to which the mileage segment belongs can be determined. Specifically, the maximum target root mean square value of the root mean square value of the vertical acceleration in all the mileage segments is obtained, and the range of each acceleration root mean square level is set according to the target root mean square value. For example, according to RMS, all segments are divided into 5 levels (level 1: 0~0.2RMS max , level 2: 0.2~0.4RMS max , (0.2 RMS max ≤0.4RMS max level 3: 0.4~0.6RMS max , level 4: 0.6~0.8RMS max , level 5: 0.8~1RMS max ), and the proportion of each level is counted, and levels 1-5 represent: low road surface strength, relatively low road surface strength, general road surface strength, relatively high road surface strength, and high road surface strength. RMS max is the maximum target root mean square value of the root mean square value of the vertical acceleration in the mileage segment.

[0057] For example, in actual collection, the statistics of each segment of a certain data are shown in Table 1.

[0058] Table 1

[0059] .

[0060] Among them, it can be understood that when the acceleration root mean square value is 0.96, the acceleration root mean square level corresponds to the third level, and the corresponding road surface strength is general.

[0061] In addition, in some optional embodiments of the present application, the method further comprises:

[0062] Obtaining the road surface strength level and proportion collected, and collecting user load spectrum data;

[0063] According to the road surface strength level and proportion, and the user load spectrum data, the road surface level strength per unit mileage is calculated.

[0064] Wherein, a small amount of typical user load spectrum data is collected, unit mileage intensity is calculated according to road surface grade intensity classification and proportion, and is extrapolated to the entire user's durability target, so as to be used for user association, thereby utilizing the association project in the test field.

[0065] In addition, the road surface intensity grade of the mileage in the driving process and the proportion of each road surface intensity grade corresponding to the road surface intensity grade can be obtained to obtain the road surface intensity information in the driving process, and the road surface intensity information is pushed to the user.

[0066] In summary, the road surface intensity information collection method in the above embodiment of the present application, by acquiring the acceleration collected by the acceleration sensor placed in the vehicle and the vehicle speed information in the vehicle driving process respectively; the vehicle speed data contained in the vehicle speed information is integrated to obtain the mileage data of the driving process, and the mileage data is divided into multiple mileage segments; the root mean square value of the vertical acceleration of each mileage segment is obtained according to the acceleration information, and the road surface intensity of each mileage segment is determined according to the root mean square value of the vertical acceleration. Thus, based on the vehicle speed and acceleration information, the objective numerical value obtained through a series of calculations represents the road surface working condition intensity, avoiding the problem of affecting the accuracy of the road surface intensity information caused by subjective judgment in the prior art.

[0067] Embodiment three

[0068] Please refer to Figure 2 , which is a road surface intensity information collection device proposed in the third embodiment of the present application, the device comprises:

[0069] The acquisition module 100 is used for acquiring the acceleration collected by the acceleration sensor placed in the vehicle and the vehicle speed information in the vehicle driving process respectively;

[0070] The integration module 200 is used for integrating the vehicle speed data contained in the vehicle speed information to obtain the mileage data of the driving process, and dividing the mileage data into multiple mileage segments;

[0071] The determination module 300 is used for obtaining the root mean square value of the vertical acceleration of each mileage segment according to the acceleration information, and determining the road surface intensity of each mileage segment according to the root mean square value of the vertical acceleration.

[0072] Further, the road surface intensity information collection device, wherein the step of determining the road surface intensity of each mileage segment according to the root mean square value of the vertical acceleration comprises:

[0073] Obtaining the maximum target root mean square value of the root mean square value of the vertical acceleration in all the mileage segments;

[0074] According to the target RMS value, the RMS value level is divided into a range, and the RMS value level corresponds to a road strength level;

[0075] According to the RMS level to which the vertical acceleration belongs, the road strength level to which the mileage segment belongs is determined.

[0076] Further, the road strength information acquisition device, wherein the step of dividing the RMS value level according to the target RMS value includes:

[0077] The preset proportion of the target RMS value determines the maximum and minimum values of the RMS value level, respectively;

[0078] According to the range covered by the maximum and minimum values of the RMS value level, the corresponding range of the RMS value level is determined.

[0079] Further, the road strength information acquisition device, wherein the step of dividing the mileage data into multiple mileage segments includes:

[0080] According to the equal division principle, the mileage data is equally divided into multiple equally divided mileage segments.

[0081] Further, the road strength information acquisition device, wherein the method further includes:

[0082] Obtain the collected road strength level and proportion, and collect user load spectrum data;

[0083] According to the road strength level and proportion, and the user load spectrum data, the road strength level per unit mileage is calculated.

[0084] Further, the road strength information acquisition device, wherein the range of the RMS value level includes a first level, a second level, a third level, a fourth level and a fifth level;

[0085] The range of the first level is 0~0.2RMS max , the range of the second level is 0.2 RMS max ~0.4RMS max , the range of the third level is 0.4 RMS max ~0.6RMS max , the range of the fourth level is 0.6 RMS max ~0.8RMS max , and the range of the fifth level is 0.8 RMS max ~1RMS max ;

[0086] Wherein, RMSmax the maximum value of the root mean square value of the vertical acceleration among all the mileage segments.

[0087] Further, the road surface strength information collection device described above, wherein the device further comprises:

[0088] The push module is configured to obtain the road surface strength grades of the mileage in the driving process and the proportion of each road surface strength grade to obtain the road surface strength information of the driving process, and push the road surface strength information to the user.

[0089] The functions or operation steps realized when the above modules are executed are substantially the same as those of the above method embodiments, and will not be described here again.

[0090] Embodiment four

[0091] Another aspect of the present application also provides a readable storage medium, which stores a computer program, and the program realizes the steps of the method of any one of the above embodiments one to two when executed by a processor.

[0092] Embodiment five

[0093] Another aspect of the present application also provides an electronic device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor realizes the steps of the method of any one of the above embodiments one to two when executing the program.

[0094] The technical features of each of the above embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0095] Those skilled in the art can understand that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a list of executable instructions for realizing the logic function, which can be embodied in any computer readable storage medium for use by or in connection with an instruction execution system, device or apparatus, such as a computer-based system, a system including a processor or other system that can fetch and execute instructions from an instruction execution system, device or apparatus. For the present specification, the "computer readable storage medium" can be any device that can contain, store, communicate, propagate or transport programs for use by or in connection with an instruction execution system, device or apparatus, or in conjunction with these instruction execution systems, devices or apparatus.

[0096] More specific examples (a non-exhaustive list) of the computer-readable storage medium include the following: an electrical connection having one or more wires (electrical, optical, and the like) a portable computer diskette (magnetic, or optical, e.g., Blu-ray® disk, etc.) a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, and a portable compact disc read-only memory (CDROM). Additionally, the computer readable storage medium can even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, for instance via an optical scanner, then compiled, interpreted, or otherwise processed, using an appropriate medium, into a computer program in a suitable language.

[0097] It should be understood that aspects of the application can be implemented in hardware, software, firmware or combinations thereof. In the embodiments described above, various steps or methods can be implemented, for example, by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, and in another embodiment, any of the following techniques, which are well known in the art, can be used to implement the application: a hybrid of the techniques mentioned above; a combination of one or more of the techniques mentioned above; or one or more other techniques suitable for use in the computer hardware devices described above.

[0098] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples.

[0099] The above-described embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but cannot be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A method for collecting pavement strength information, characterized in that, The method includes: During vehicle operation, acceleration and vehicle speed information are acquired from acceleration sensors located inside the vehicle. The vehicle speed data contained in the vehicle speed information is integrated to obtain the mileage data of this driving process, and the mileage data is divided into multiple mileage segments. The root mean square value of the vertical acceleration of each mileage segment is obtained based on the acceleration information, and the road surface strength of each mileage segment is determined based on the root mean square value of the vertical acceleration. The step of determining the pavement strength of each mileage segment based on the root mean square value of the vertical acceleration includes: Obtain the target root mean square value of the vertical acceleration among all the mileage segments. The root mean square value level is divided into a range based on the maximum target root mean square value, and the root mean square value level corresponds to a road surface strength level. The pavement strength grade of the corresponding mileage segment is determined based on the root mean square level of the vertical acceleration value. The range of the root mean square value levels includes the first level, the second level, the third level, the fourth level, and the fifth level; The range of the first level is 0~0.2RMSmax, the range of the second level is 0.2 RMSmax~0.4RMSmax, the range of the third level is 0.4 RMSmax~0.6RMSmax, the range of the fourth level is 0.6 RMSmax~0.8RMSmax, and the range of the fifth level is 0.8 RMSmax~1RMSmax. Wherein, RMSmax is the target root mean square value of the maximum vertical acceleration among all the mileage segments.

2. The method for collecting pavement strength information according to claim 1, characterized in that, The step of dividing the range of root mean square value levels based on the largest target root mean square value includes: The maximum and minimum values ​​of the root mean square value level are determined according to the preset proportion of the maximum target root mean square value. The range corresponding to the root mean square value level is determined based on the range encompassed by the maximum and minimum values ​​of the root mean square value level.

3. The method for collecting road surface strength information according to claim 1, characterized in that, The step of dividing the mileage data into multiple mileage segments includes: The mileage data is divided into multiple equal mileage segments according to the principle of equal division.

4. The method for collecting road surface strength information according to claim 1, characterized in that, The method further includes: The road surface strength grade and proportion are collected, and user load spectrum data are also collected. Based on the pavement strength grade and proportion, and user load spectrum data, the pavement grade strength per unit mileage is calculated.

5. The method for collecting pavement strength information according to any one of claims 1 to 4, characterized in that, The method further includes; The road surface strength level and the corresponding proportion of each road surface strength level during this driving process are obtained to obtain the road surface strength information during this driving process, and the road surface strength information is pushed to the user.

6. A road surface strength information acquisition device, characterized in that, The apparatus for implementing the pavement strength information acquisition method according to any one of claims 1 to 5 includes: The acquisition module is used to acquire acceleration and vehicle speed information collected by the acceleration sensor placed inside the vehicle during the vehicle's operation. The integration module is used to integrate the vehicle speed data contained in the vehicle speed information to obtain the mileage data of this driving process, and divide the mileage data into multiple mileage segments. The determination module is used to obtain the root mean square value of the vertical acceleration of each mileage segment based on the acceleration information, and to determine the road surface strength of each mileage segment based on the root mean square value of the vertical acceleration.

7. A storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps of the method as described in any one of claims 1 to 5.

8. A vehicle, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the steps of the method as described in any one of claims 1 to 5.

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