CN110333083B - Vehicle durability test testing method and device, testing equipment and storage medium - Google Patents
Vehicle durability test testing method and device, testing equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the invention discloses a method and a device for testing vehicle durability test, test equipment and a storage medium. The method comprises the following steps: the method comprises the steps of obtaining position information and running speed of a test vehicle on a target road surface, wherein the position information and the running speed are collected by a positioning device, the positioning device is arranged on the test vehicle, correcting the position information according to preset standard position information of the target road surface, and determining the standard performance of a durability test of the test vehicle according to the corrected position information and the running speed. The position information of the target road surface acquired by the positioning device is corrected on the basis of the prior art, whether the execution of the durability test of the test vehicle is standard or not is determined according to the corrected position information and the running speed, the accuracy of standard judgment of the execution of the durability test is improved, a positioning reference station does not need to be additionally arranged, and the cost is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of positioning, in particular to a method and a device for testing vehicle durability test, test equipment and a storage medium.
Background
The durability test is an important index for evaluating the durability performance of a vehicle, and if the durability test execution standard is used, the determination result representing the durability performance of the vehicle under the durability test is credible. Roads applied to the durability test of the test yard mainly comprise cement roads, twisted roads, raised roads, washboard roads and the like, and different running speeds of the same road have great difference on the service life of vehicles. The running speed is an important index for testing whether the vehicle durability test is standard.
The running speed is related to the track of the road surface, whether the running speed of the vehicle is consistent with the standard speed or not is judged, the track of the current road surface needs to be determined, and the accuracy of the track directly influences the judgment of the running speed. The conventional method is to directly use a Global Positioning System (GPS) for Positioning, and determine the standard performance of the durability test according to the GPS Positioning trajectory and the corresponding running speed. Due to the fact that the GPS precision is low, the positioning track and the actual running track of the vehicle have large deviation, even the running track of the lane is mistaken for the running track of an adjacent lane, the accuracy of evaluation of the running speed of the current road surface is low, and evaluation of the execution standard of the vehicle durability test is affected.
Therefore, in the prior art, RTK (Real-Time Kinematic) differential positioning is adopted, which increases the positioning accuracy, but requires a positioning reference station to be erected, which is high in cost, complex in erection, and controlled by a test site.
Disclosure of Invention
The embodiment of the invention provides a method and a device for testing vehicle durability test, testing equipment and a storage medium, which are used for improving the testing precision of the vehicle durability test execution standard.
In a first aspect, an embodiment of the present invention provides a method for testing a vehicle durability test, including:
acquiring position information and running speed of a test vehicle on a target road surface, which are acquired by a positioning device, wherein the positioning device is arranged on the test vehicle;
correcting the position information according to the preset standard position information of the target road surface;
and determining the standard performance of the durability test execution of the test vehicle according to the corrected position information and the running speed.
In a second aspect, an embodiment of the present invention further provides a testing apparatus for a vehicle durability test, including:
the information acquisition module is used for acquiring the position information and the running speed of the test vehicle on a target road surface, which are acquired by the positioning device, and the positioning device is arranged on the test vehicle;
the correction module is used for correcting the position information according to the preset standard position information of the target road surface;
and the durability determining module is used for determining the standard performance of the durability test execution of the test vehicle according to the corrected position information and the running speed.
In a third aspect, an embodiment of the present invention further provides a testing apparatus, including:
the positioning device is used for acquiring the position information of the test vehicle on the target road surface and pre-formulating the standard position information of the target road surface;
one or more processors;
a memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the test method for vehicle endurance testing as described in the first aspect.
In a fourth aspect, the embodiment of the present invention further provides a storage medium, on which a computer program is stored, which when executed by a processor, implements the test method for the vehicle durability test according to the first aspect.
The embodiment of the invention provides a testing method, a testing device, testing equipment and a storage medium for a vehicle durability test. The position information of the target road surface acquired by the positioning device is corrected on the basis of the prior art, whether the execution of the durability test of the test vehicle is standard or not is determined according to the corrected position information and the running speed, the accuracy of standard judgment of the execution of the durability test is improved, a positioning reference station does not need to be additionally arranged, and the cost is reduced.
Drawings
Fig. 1 is a flowchart of a testing method for a vehicle endurance test according to an embodiment of the present invention;
FIG. 2 is a schematic view of a test site pavement according to an embodiment of the present invention;
FIG. 3 is a flowchart of a method for testing vehicle durability tests according to a second embodiment of the present invention;
fig. 4 is a schematic diagram of a track according to a second embodiment of the present invention;
FIG. 5 is a sub-flowchart of a testing method for a vehicle endurance test according to a second embodiment of the present invention;
fig. 6 is a schematic diagram of a track matrix according to a second embodiment of the present invention;
fig. 7 is a schematic diagram of a driving track before being corrected according to a second embodiment of the present invention;
fig. 8 is a schematic diagram of a driving track after being corrected according to a second embodiment of the present invention;
fig. 9 is a partially enlarged schematic view of a driving track before being corrected according to a second embodiment of the present invention;
fig. 10 is a partially enlarged schematic view of a driving track after being corrected according to a second embodiment of the present invention;
fig. 11 is a structural diagram of a testing apparatus for a vehicle durability test according to a third embodiment of the present invention;
fig. 12 is a structural diagram of a testing apparatus according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. In addition, the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.
Example one
Fig. 1 is a flowchart of a testing method for a vehicle endurance test according to an embodiment of the present invention, where the embodiment is applicable to a case where it is tested whether the vehicle endurance test is performed normally, and the method may be performed by a testing apparatus for a vehicle endurance test, where the testing apparatus may be implemented by software and/or hardware, and is generally integrated in a testing device, where the testing device may be disposed on a vehicle. Specifically, the method comprises the following steps:
and S110, acquiring the position information and the running speed of the test vehicle on the target road surface, which are acquired by the positioning device.
Wherein the positioning deviceIs arranged on the test vehicle. The Positioning device is a device capable of acquiring position information of a test vehicle in real time, and specifically may be a GPS (Global Positioning System), where the Positioning accuracy of the GPS is ± 2.5 m. Optionally, the GPS is disposed on the test vehicle, and collects, in real time, a longitude and a latitude where the test vehicle is located, as the position information of the test vehicle, where the unit of the longitude and the latitude is degree, and the accuracy is 1 × 10-7That is, the remaining 7 is a decimal, the test vehicle can be selected as required, and the embodiment does not limit the type, specific model, and the like of the test vehicle.
The target road surface is the road surface where the test vehicle is located at present, and includes but is not limited to raised roads, twisted roads, washboard roads, pothole roads and the like. Exemplarily, referring to fig. 2, fig. 2 is a schematic diagram of a test field pavement according to an embodiment of the present invention. The road surface required by the test is preset by the test field, part of the road surface can be selected during the test, all the road surfaces can also be selected, and all the road surfaces of the test field can be selected for testing in order to fully know whether the durability test of the test vehicle on different road surfaces is standard or not. During testing, the test vehicle needs to run from a specified starting point to a specified end point, only forward running is allowed in the running process, and backward running is not allowed, so that the test of other test vehicles is not influenced. The running speed can be obtained through a speedometer of the test vehicle or a speed measuring device arranged on the test vehicle. The position information and the running speed of the test vehicle have a corresponding relationship, namely, each piece of position information corresponds to one running speed.
And S120, correcting the position information according to the preset standard position information of the target road surface.
The standard position information is position information which is selected in advance for testing the test vehicle and can be acquired in advance through a positioning device, and comprises a starting position and an end position, and the starting position and the end position can be set according to actual needs. The target road surface may only include one start point and one end point, or may include multiple start points and multiple end points, for example, the target road surface may be segmented according to road conditions, and a corresponding start point and end point may be set for each segment. Illustratively, the target road surface is divided into three sections, namely a vehicle body twisted road, an oscillating road and a road strip, wherein the longitude of the starting point of the vehicle body twisted road is 107.3885819, the latitude is 30.27021577, the longitude of the ending point is 107.3884808, the latitude is 30.27021572, the longitude of the starting point of the oscillating road is 107.3880435, the latitude is 30.27045055, the longitude of the ending point is 107.3882059, the latitude is 30.27213005, the longitude of the starting point of the road strip is 107.3904279, the latitude is 30.27391849, the longitude of the ending point is 107.3912444, and the latitude is 30.27203293.
During testing, the test vehicle should run according to the standard position information as much as possible, the test vehicle passes through all set starting points and end points, the position information is complete, the test vehicle can be used for performing standard testing on the durability test of the test vehicle, otherwise, the position information acquired by the GPS is considered to be incomplete, and the position information is ignored. It is understood that, since the road surface selected in the test is a bad road such as a raised road or a depressed road, the position information actually traveled by the test vehicle deviates from the standard position information even if the test vehicle travels according to the standard position information. In addition, in GPS positioning, drift is likely to occur within a certain period of time, and the position information of the test vehicle acquired by the GPS is deviated from the position information of the test vehicle actually traveling by a certain amount. In order to improve the accuracy of the durability test in performing the standard determination, the embodiment corrects the position information acquired by the GPS using the standard position information prepared in advance.
For convenience of description, the embodiment refers to the position information acquired by the GPS at the time of the test as the travel position information. Specifically, the driving position information and the standard position information may be placed in the same coordinate system, a longitude difference and a latitude difference between the driving position information and the standard position information may be determined, and the driving position information may be translated according to the longitude difference and the latitude difference to be overlapped with the standard position information as much as possible, so that the correction is completed, and the corrected position information may be obtained, which provides a basis for determining the durability.
And S130, determining the standard performance of the durability test of the test vehicle according to the corrected position information and the running speed.
Specifically, the corrected position information may be processed in a segmented manner, a running speed corresponding to each segment of position information is obtained, the running speed is compared with a standard speed corresponding to the segment of position information, if a difference between the running speed and the standard speed is smaller than a preset difference, the running speed is considered to be consistent with the standard speed, the endurance test execution standard of the test vehicle corresponding to the segment of position information is determined, and otherwise, the non-standard is executed. Alternatively, after segmenting the corrected position information, the starting point and the end point of each segment may be determined based on the standard position information, the road segment between the starting point and the end point is taken, the driving speed corresponding to the road segment is obtained, and whether the performance of the endurance test of the test vehicle on the road segment is standard or not is determined according to the driving speed of the road segment.
The embodiment of the invention provides a vehicle durability test method, which comprises the steps of acquiring position information and running speed of a test vehicle on a target road surface, collected by a positioning device, correcting the position information according to preset standard position information of the target road surface, and determining the standard performance of a durability test of the test vehicle according to the corrected position information and the running speed. The position information of the target road surface acquired by the positioning device is corrected on the basis of the prior art, whether the execution of the durability test of the test vehicle is standard or not is determined according to the corrected position information and the running speed, the accuracy of standard judgment of the execution of the durability test is improved, a positioning reference station does not need to be additionally arranged, and the cost is reduced.
Example two
Fig. 3 is a flowchart of a testing method for a vehicle durability test according to a second embodiment of the present invention, which is embodied on the basis of the second embodiment, and accordingly, the method includes the following steps:
s210, acquiring the position information and the running speed of the test vehicle on the target road surface, which are acquired by the positioning device.
And S220, forming a corresponding standard track under a set coordinate system according to the standard position information.
The standard track is a graph formed based on standard position information, for example, referring to track 1 in fig. 4, and fig. 4 is a track schematic diagram provided in the second embodiment of the present invention. The data points of the standard position information are connected smoothly to obtain the trajectory shown in fig. 4, and the trajectory 1 in fig. 4 is a standard trajectory. The set coordinate system can be selected according to actual needs, and the rectangular coordinate system is taken as an example in the embodiment.
And S230, forming a corresponding running track in the set coordinate system according to the position information.
The driving track is a graph formed based on the position information, specifically, as shown in a track 2 in fig. 4, a drawing process of the driving track is similar to a drawing process of a standard track, and is not described herein again. In actual test, there are many driving tracks, and fig. 4 only gives an exemplary schematic diagram of one driving track. The travel locus plotted in fig. 4 is a complete locus including all the set start points and the set end points, and preferably, the complete locus of the present embodiment is a repetitive circle locus, that is, the travel locus for evaluating the durability test standard and the standard locus are repetitive circle loci.
And S240, correcting the running track according to the standard track to obtain a corrected running track.
The correction may be a translation operation, and the travel track is translated according to the specific positions of the travel track and the standard track, so that the travel track and the standard track are overlapped as much as possible, and the corrected travel track is obtained. Referring to fig. 5, fig. 5 is a sub-flowchart of a testing method for a vehicle durability test according to a second embodiment of the present invention, specifically, S240 includes:
s2401, converting the image containing the standard track and the driving track into a binary image to obtain a standard track matrix and a driving track matrix.
The standard trajectory matrix and the travel trajectory matrix are numerical matrices including 0 and 1. In order to determine the translation amount of the driving track, an image including a standard track and the driving track needs to be converted into a binary image, and at this time, the driving track and the standard track are converted into a corresponding digital matrix, wherein the track line part is a number 0 and the background part is 1. Optionally, to facilitate the translation, the binarized image may be inverted, that is, the track line part is a number 1, and the background part is a number 0, so as to obtain a standard track matrix and a driving track matrix, refer to fig. 6, and fig. 6 is a schematic diagram of a track matrix provided in the second embodiment of the present invention.
S2402, determining the association relationship between the unit pixel and the longitude and latitude according to the pixel point corresponding to the binary image and the longitude and latitude corresponding to the image.
Illustratively, referring to fig. 6, the track matrix has a length of 12 pixels and a width of 12 pixels, and assuming that the longitude of the track matrix is W1 and the latitude is N1, it can be determined that the length of each pixel represents W1/12 and the width represents the latitude of N1/12. And translating the running track matrix left and right to represent longitude translation of the track during running, translating the running track matrix up and down to represent latitude translation of the track during running, and determining translation amounts of longitude and latitude of the running track according to the translation amounts of the pixels to obtain the corrected running track.
S2403, translating the driving track matrix in a unit, and determining the similarity between the driving track matrix after unit translation and the standard track matrix.
The similarity is the similarity of the driving track and the standard track, and can be determined by translating the driving track matrix. The step size of the translation can be set according to actual needs, and the embodiment sets the step size as a unit pixel, namely, one pixel is translated at a time. Specifically, the similarity between the translated driving track matrix and the standard track matrix can be determined through the following steps:
performing logical operation on pixels corresponding to the unit-translated driving track matrix and pixels corresponding to the standard track matrix;
accumulating the operation results of the pixels to obtain an accumulated sum;
and taking the accumulated sum as the similarity of the driving track matrix after unit translation and the standard track matrix.
The logical operation is an operation rule for calculating the similarity, and the embodiment takes the and operation in the logical operation as an example, and calculates the similarity between the translated driving track matrix and the standard track matrix. Specifically, every time a pixel is translated, performing and operation on each pixel corresponding to the translated driving track matrix and each pixel corresponding to the standard track, wherein if the pixel values of the two pixels of the and are the same, the operation result is 1, otherwise, the operation result is 0, and the operation results of the pixels are accumulated to obtain the accumulated sum corresponding to the translation, wherein the accumulated sum is the similarity between the unit translated driving track matrix and the standard track matrix.
S2404, whether the outer boundary of the driving track matrix and the outer boundary of the standard track matrix meet set conditions or not is judged, if yes, S2405 is executed, and if not, the S2403 is executed in a returning mode.
It can be understood that, because the accuracy of the GPS is low, there is a certain deviation between the actually obtained travel track matrix and the standard track matrix, that is, there is a certain deviation between the outer boundary of the travel track matrix and the outer boundary of the standard track, and in order to make the travel track and the standard track coincide as much as possible, the travel track matrix is translated in the embodiment. Specifically, when the right boundary of the driving track matrix is located at the set distance from the right boundary of the standard track or the tangent of the right boundary of the driving track matrix is located at the set distance from the right side of the tangent of the right boundary of the standard track, the left-right translation is stopped, and the set distance can be set according to actual conditions. The up-down translation is also similar, when the lower boundary of the driving track matrix is located at a set distance below the lower boundary of the standard track or the tangent of the lower boundary of the driving track matrix is located at a set distance below the tangent of the lower boundary of the standard track, the up-down translation is stopped, and the size of the set distance can be set according to the actual situation.
S2405, recording the similarity and the translation mode corresponding to the unit translation operation.
And if the outer boundary of the driving track matrix and the outer boundary of the standard track matrix meet set conditions, recording the corresponding similarity and the corresponding translation mode of the unit translation operation.
S2406, correcting the driving track corresponding to the driving track matrix according to the similarity after each unit translation.
The greater the similarity, the closer the travel locus is to the standard locus. And comparing the similarity obtained by each unit translation, determining the maximum similarity, and correcting the driving track according to the maximum similarity. Specifically, the driving track corresponding to the driving track matrix can be corrected through the following steps:
comparing the similarity after each unit translation;
determining a translation mode of unit translation operation corresponding to the maximum similarity;
determining translation amount of the longitude and latitude corresponding to the translation mode according to the incidence relation between the unit pixel and the longitude and latitude;
and correcting the driving track corresponding to the driving track matrix according to the translation amount.
For example, assuming that the translation mode of the unit translation operation corresponding to the maximum similarity is to translate one pixel rightward and translate one pixel rightward, it may be determined that the travel track is finally translated by two pixels rightward, a translation amount of the longitude of the travel track may be determined according to a predetermined association relationship between the unit pixel and the longitude and latitude, and the travel track may be translated according to the calculated translation amount to obtain the corrected travel track. For example, referring to fig. 7 to 10, where fig. 7 to 8 are schematic diagrams before and after a driving track is corrected according to a second embodiment of the present invention, a driving track and a standard track located in the same coordinate system are obtained according to position information of a test vehicle on a target road surface and standard position information acquired by a GPS, as can be seen from fig. 7, if there is a certain deviation between the driving track and the standard track, it is determined whether the execution of the endurance test of the test vehicle is standard directly according to the driving track obtained in fig. 7, which results in lower accuracy. For this reason, the embodiment corrects the running locus using the standard locus, the corrected running locus is as shown in fig. 8, and whether the performance of the endurance test of the test vehicle is standard is determined based on the corrected running locus, so that the accuracy of the determination can be improved. To facilitate comparison of the position relationship between the driving trajectory before and after correction and the standard trajectory, the embodiment respectively selects and enlarges the partial schematic diagrams of the corresponding positions in fig. 7 and fig. 8 to obtain the partial enlarged schematic diagrams of fig. 9-fig. 10, so that it can be seen that the corrected driving trajectory is closer to the standard trajectory. It should be noted that fig. 7 and fig. 8 only show the case where the standard trajectory is one, and in practical applications, the selected standard trajectory may have branches, that is, two standard trajectories exist in a partial road segment.
And S250, acquiring the running speed corresponding to the corrected running track.
The position information acquired by the GPS has a corresponding relation with the running speed, the running track generated based on the position relation also has a corresponding relation with the running speed, and the corrected running track translates on the basis of the running track, so that the running speed corresponding to the corrected running track is the running speed corresponding to the running track generated based on the position relation. To facilitate determining whether the performance of the endurance test of the test vehicle is standard, the embodiment segments the modified travel trajectory. And each section corresponds to a starting point and an end point, and the running speed between the starting point and the end point of each section is obtained.
And S260, comparing the running speed with a standard speed corresponding to the standard track.
And comparing the running speed corresponding to each section of the corrected running track with the standard speed corresponding to the standard track corresponding to the section of the running track, determining the difference value of the two speeds, if the difference value is less than or equal to the preset difference value, indicating that the durability test of the test vehicle on the section of the track is standard, otherwise, executing the test vehicle is not standard. Optionally, the qualification rate of each segment of the target road surface is counted, and the qualification rate of the test vehicle on the target road surface can also be determined, for example, the target road surface is a vibration road, when the vehicle runs across the road surface, if 1000 GPS positioning points are generated according to the sampling frequency of the GPS, 1000 speed points are provided correspondingly, if the speed values of 200 speed points are not within the preset range, the speed qualification rate is 80%, and correspondingly, the qualification rate of the durability test on the road section is considered to be 80%. If the durability test is qualified, the durability test standard is indicated, the result of the durability of the vehicle based on the durability test is credible, otherwise, the result is not credible. The preset difference may be a fixed value, and the specific situation may be set according to actual needs, and the embodiment is not limited.
And S270, whether the difference value between the running speed and the standard speed is smaller than or equal to a preset difference value or not, if yes, executing S280, and if not, executing S290.
If the difference between the running speed and the standard speed is less than or equal to the preset difference, S280 is performed to consider the durability test standard of the test vehicle, otherwise, S290 is performed to consider the durability test standard of the test vehicle not to be standard. The qualification of the durability performance of the test vehicle provides a basis for the improvement of the vehicle performance.
And S280, carrying out a durability test execution standard of the test vehicle.
And S290, performing the endurance test of the test vehicle.
On the basis of the embodiment, a corresponding running track and a standard track are drawn in the same coordinate system according to position information and standard position information acquired by a GPS, binarization conversion is performed on the running track and the standard track, the translation amount of the running track is determined through translation operation, the corrected running track is obtained, the running speed corresponding to the corrected running track is compared with the standard speed, whether the execution of the durability test of the test vehicle is standard or not is determined according to the comparison result, and related equipment such as a positioning base station is not required to be additionally arranged, so that the accuracy of standard judgment of the execution of the durability test is improved, and the cost is reduced.
EXAMPLE III
Fig. 11 is a structural diagram of a testing apparatus for a vehicle durability test according to a third embodiment of the present invention, which can execute the testing method for the vehicle durability test according to the third embodiment of the present invention, specifically, the apparatus includes:
the information acquisition module 310 is used for acquiring position information and running speed of a test vehicle on a target road surface, which are acquired by a positioning device, wherein the positioning device is arranged on the test vehicle;
the correcting module 320 is used for correcting the position information according to the preset standard position information of the target road surface;
and a standardization determining module 330 for determining standardization of the durability test execution of the test vehicle according to the corrected position information and the driving speed.
The third embodiment of the invention provides a testing device for a vehicle durability test, which is characterized in that position information and running speed of a test vehicle on a target road surface, which are acquired by a positioning device, are acquired, the position information is corrected according to preset standard position information of the target road surface, and the standard performance of the durability test of the test vehicle is determined according to the corrected position information and the running speed. The position information of the target road surface acquired by the positioning device is corrected on the basis of the prior art, whether the execution of the durability test of the test vehicle is standard or not is determined according to the corrected position information and the running speed, the accuracy of standard judgment of the execution of the durability test is improved, a positioning reference station does not need to be additionally arranged, and the cost is reduced.
On the basis of the above embodiment, the modification module 320 includes:
the standard track forming unit is used for forming a corresponding standard track under a set coordinate system according to the standard position information;
the driving track forming unit is used for forming a corresponding driving track under the set coordinate system according to the position information;
and the correcting unit is used for correcting the running track according to the standard track to obtain a corrected running track.
On the basis of the above embodiment, the correction unit includes:
the conversion subunit is used for converting the image containing the standard track and the driving track into a binary image to obtain a standard track matrix and a driving track matrix;
the incidence relation subunit is used for determining the incidence relation between the unit pixel and the longitude and latitude according to the pixel point corresponding to the binary image and the longitude and latitude corresponding to the image;
the translation unit is used for translating the driving track matrix in a unit, determining the similarity between the driving track matrix after unit translation and the standard track matrix, and stopping unit translation operation when the outer boundary of the driving track matrix and the outer boundary of the standard track matrix meet set conditions;
and the correcting subunit is used for correcting the driving track corresponding to the driving track matrix according to the similarity after each unit translation.
On the basis of the above embodiment, the translation unit is specifically configured to perform logical operation on the pixels corresponding to the unit-translated driving trajectory matrix and the pixels corresponding to the standard trajectory matrix;
accumulating the operation results of the pixels to obtain an accumulated sum;
and taking the accumulated sum as the similarity of the driving track matrix after unit translation and the standard track matrix.
On the basis of the above embodiment, the correction subunit is specifically configured to compare the similarity after each unit translation;
determining a translation mode of unit translation operation corresponding to the maximum similarity;
determining translation amount of the longitude and latitude corresponding to the translation mode according to the incidence relation between the unit pixel and the longitude and latitude;
and correcting the driving track corresponding to the driving track matrix according to the translation amount.
On the basis of the above embodiment, the standardization determining module 330 includes:
a travel speed acquisition unit for acquiring a travel speed corresponding to the corrected travel track;
the comparison unit is used for comparing the running speed with a standard speed corresponding to the standard track;
and the judging unit is used for executing the durability test execution standard of the test vehicle if the difference value between the running speed and the standard speed is smaller than or equal to a preset difference value, and otherwise, executing the nonstandard test.
The testing device for the vehicle durability test provided by the third embodiment of the invention can be used for executing the testing method for the vehicle durability test provided by the third embodiment of the invention, and has corresponding functions and beneficial effects.
Example four
Fig. 12 is a structural diagram of a testing apparatus according to a fourth embodiment of the present invention, specifically, referring to fig. 12, the testing apparatus includes: the positioning device 410, the processor 420, the memory 430, the input device 440 and the output device 450, the number of the processors 420 in the test equipment may be one or more, one processor 420 is taken as an example in fig. 12, the processor 420, the memory 430, the input device 440 and the output device 450 in the test equipment may be connected through a bus or in other ways, and the connection through the bus is taken as an example in fig. 12. And the positioning device 410 is used for acquiring the position information of the test vehicle on the target road surface and presetting the standard position information of the target road surface.
The memory 430 is a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the testing method of the vehicle endurance test in the embodiment of the present invention. The processor 420 executes various functional applications of the test device and data processing, i.e., a test method for implementing the vehicle endurance test of the above-described embodiment, by executing software programs, instructions, and modules stored in the memory 430.
The memory 430 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 430 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 430 may further include memory located remotely from processor 420, which may be connected to the test equipment over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 440 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function controls of the test apparatus. The output device 450 may include a display device such as a display screen, and an audio device such as a speaker and a buzzer.
The testing device provided by the fourth embodiment of the invention belongs to the same inventive concept as the testing method of the vehicle durability test provided by the above embodiments, the technical details which are not described in detail in the present embodiment can be referred to the above embodiments, and the present embodiment has the same beneficial effects as the testing method of the vehicle durability test.
EXAMPLE five
Fifth embodiment of the present invention further provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for testing the durability test of the vehicle according to the fifth embodiment of the present invention.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the operations in the test method for vehicle endurance test described above, and may also perform related operations in the test method for vehicle endurance test provided by the embodiments of the present invention, and has corresponding functions and advantages.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes instructions for enabling a computer device (which may be a robot, a personal computer, a server, or a network device) to execute the method for testing the vehicle endurance test according to the embodiments of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. A method for testing a durability test of a vehicle, comprising:
acquiring position information and running speed of a test vehicle on a target road surface, which are acquired by a positioning device, wherein the positioning device is arranged on the test vehicle;
correcting the position information according to the preset standard position information of the target road surface;
determining the standard of the durability test execution of the test vehicle according to the corrected position information and the running speed;
the correcting the position information according to the preset standard position information of the target road surface comprises the following steps:
forming a corresponding standard track under a set coordinate system according to the standard position information;
forming a corresponding running track under the set coordinate system according to the position information;
correcting the driving track according to the standard track to obtain a corrected driving track;
the correcting the driving track according to the standard track comprises the following steps:
converting the image containing the standard track and the driving track into a binary image to obtain a standard track matrix and a driving track matrix;
determining the incidence relation between the unit pixel and the longitude and latitude according to the pixel point corresponding to the binary image and the longitude and latitude corresponding to the image;
translating the driving track matrix in a unit, determining the similarity between the driving track matrix after the unit translation and the standard track matrix, and stopping the unit translation operation when the outer boundary of the driving track matrix and the outer boundary of the standard track matrix meet set conditions;
and correcting the driving track corresponding to the driving track matrix according to the similarity after each unit translation.
2. The method of claim 1, wherein determining the similarity between the unit-translated driving trajectory matrix and the standard trajectory matrix comprises:
performing logical operation on pixels corresponding to the unit-translated driving track matrix and pixels corresponding to the standard track matrix;
accumulating the operation results of the pixels to obtain an accumulated sum;
and taking the accumulated sum as the similarity of the driving track matrix after unit translation and the standard track matrix.
3. The method according to claim 2, wherein the correcting the driving track corresponding to the driving track matrix according to the similarity after each unit translation comprises:
comparing the similarity after each unit translation;
determining a translation mode of unit translation operation corresponding to the maximum similarity;
determining translation amount of the longitude and latitude corresponding to the translation mode according to the incidence relation between the unit pixel and the longitude and latitude;
and correcting the driving track corresponding to the driving track matrix according to the translation amount.
4. The method according to claim 1, wherein determining the normative of the test vehicle durability test execution based on the corrected position information and the travel speed comprises:
acquiring the driving speed corresponding to the corrected driving track;
comparing the corresponding running speed with a standard speed corresponding to the standard track;
and if the difference value between the corresponding running speed and the standard speed is smaller than or equal to a preset difference value, executing the durability test of the test vehicle to be standard, otherwise, executing the test vehicle to be nonstandard.
5. A test device for a vehicle durability test, characterized by comprising:
the information acquisition module is used for acquiring the position information and the running speed of the test vehicle on a target road surface, which are acquired by the positioning device, and the positioning device is arranged on the test vehicle;
the correction module is used for correcting the position information according to the preset standard position information of the target road surface;
the durability determining module is used for determining the standard performance of the durability test execution of the test vehicle according to the corrected position information and the running speed;
the correction module comprises:
the standard track forming unit is used for forming a corresponding standard track under a set coordinate system according to the standard position information;
the driving track forming unit is used for forming a corresponding driving track under the set coordinate system according to the position information;
the correction unit is used for correcting the running track according to the standard track to obtain a corrected running track;
the correction unit includes:
the conversion subunit is used for converting the image containing the standard track and the driving track into a binary image to obtain a standard track matrix and a driving track matrix;
the incidence relation subunit is used for determining the incidence relation between the unit pixel and the longitude and latitude according to the pixel point corresponding to the binary image and the longitude and latitude corresponding to the image;
the translation unit is used for translating the driving track matrix in a unit, determining the similarity between the driving track matrix after unit translation and the standard track matrix, and stopping unit translation operation when the outer boundary of the driving track matrix and the outer boundary of the standard track matrix meet set conditions;
and the correcting subunit is used for correcting the driving track corresponding to the driving track matrix according to the similarity after each unit translation.
6. A test apparatus, comprising:
the positioning device is used for acquiring the position information of the test vehicle on the target road surface and pre-formulating the standard position information of the target road surface;
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the test method of the vehicle durability test of any of claims 1-4.
7. A storage medium on which a computer program is stored, characterized in that the program, when executed by a processor, implements a test method for a vehicle endurance test according to any one of claims 1 to 4.
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| CN111638487B (en) * | 2020-05-07 | 2022-07-22 | 中国第一汽车股份有限公司 | Automatic parking test equipment and method |
| CN112129547B (en) * | 2020-09-29 | 2023-07-28 | 北京艾尔动力科技有限公司 | Task generation method for automobile endurance unmanned test based on high-precision positioning |
| CN113758721A (en) * | 2021-07-30 | 2021-12-07 | 江铃汽车股份有限公司 | Unlocking effect test method and device, storage medium and equipment |
| CN115311759B (en) * | 2022-07-08 | 2023-09-05 | 东风汽车集团股份有限公司 | Method, device, equipment and storage medium for acquiring durable targets of vehicles |
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