Evaluation Method, System, Storage Medium and Device for Blind Area of Automotive A-Pillar

Abstract

The present invention provides an evaluation method, system, storage medium and device for the blind area of an automotive A-pillar. The method includes: correcting the left and right A-pillar blind spots in the preset seat state of the target vehicle according to the blind spot correction table to obtain the position information of the correction points; respectively constructing a first plane and a second plane towards the front of the vehicle with the horizontal plane passing through the correction points as the reference plane; extracting the outer contour surface of any A-pillar structure of the target vehicle, and constructing outer tangent planes passing through the correction points and tangent to both sides of the outer contour surface of the A-pillar structure, denoted as the third plane and the fourth plane; constructing a spherical surface with the correction point as the center of the sphere and r as the radius, and forming an enclosed area with the first plane, the second plane, the third plane and the fourth plane, and obtaining the maximum width of the enclosed area; comparing and analyzing the maximum width of the enclosed area with the preset width to determine whether the A-pillar blind area meets the requirements, which can actually and intuitively reflect the influence of the left and right A-pillars on the actual vision of the driver.

Description

Technical Field

[0001] The present invention relates to the field of automobiles, and particularly to an evaluation method, system, storage medium and device for the blind area of an automobile A-pillar. Background Art

[0002] The A-pillar blind area refers to the blind area of vision during the driving of an automobile. Generally, there are three upright columns on each side of a car body. The inclined columns on both sides of the front windshield are called A-pillars, that is, the left and right A-pillars. Whenever the car is turning or entering a curve, the driver's vision will be partially blocked by the A-pillars, resulting in a blind area in vision.

[0003] At present, the design check of the A-pillar blind area is based on national standards, and the obstacle angle of the A-pillar is assisted to be checked by a computer. The rationality of the A-pillar structure design is evaluated only by comparing the size of the obstacle angle of the A-pillar with that of competing models. This evaluation method cannot actually and intuitively reflect the driver's perception of the actual size of the blind area. Summary of the Invention

[0004] The purpose of the present invention is to provide an evaluation method, system, storage medium and device for the blind area of an automobile A-pillar to solve the problems in the above background art.

[0005] The present invention provides an evaluation method for the blind area of an automobile A-pillar, and the method includes:

[0006] Correcting the left and right A-pillar blind spots in the preset seat state of the target vehicle according to the blind spot correction table to obtain the position information of the correction points;

[0007] Taking the horizontal plane passing through the correction points as a reference plane, respectively constructing a first plane and a second plane in front of the vehicle. The first plane is a plane passing through the correction points and making a positive first preset angle with the reference plane, and the second plane is a plane passing through the correction points and making a negative second preset angle with the reference plane;

[0008] Extracting the outer contour surface of any A-pillar structure of the target vehicle, and constructing outer tangent planes passing through the correction points and tangent to both sides of the outer contour surface of the A-pillar structure, denoted as the third plane and the fourth plane;

[0009] Constructing a spherical surface with the correction points as the center of the sphere and r as the radius, and forming an enclosed area with the first plane, the second plane, the third plane and the fourth plane, and obtaining the maximum width of the enclosed area, where r is the distance of the zebra crossing at a traffic light intersection defined by regulations;

[0010] Comparing and analyzing the maximum width of the enclosed area with a preset width, and evaluating the A-pillar of the target vehicle according to the analysis result.

[0011] The evaluation method for the blind spot of the automobile A-pillar proposed by the present invention has the following beneficial effects:

[0012] The present invention corrects the left and right A-pillar blind spots of a target vehicle in a preset seat state according to a blind spot correction table to obtain position information of a correction point; a first plane and a second plane are respectively constructed toward the front of the vehicle with a horizontal plane passing through the correction point as a reference plane, wherein the first plane is a plane passing through the correction point and presenting a positive first preset angle with the reference plane, and the second plane is a plane passing through the correction point and presenting a negative second preset angle with the reference plane; an outer contour surface of any A-pillar structure of the target vehicle is extracted, and an outer tangent surface passing through the correction point and tangent to both sides of the outer contour surface of the A-pillar structure is constructed, which are set as a third plane and a fourth plane; a spherical surface with the correction point as the center and r as the radius is constructed, and an enclosed area is formed with the first plane, the second plane, the third plane and the fourth plane, and the maximum width of the enclosed area is obtained, wherein r is the distance of the zebra crossing at the traffic light intersection defined by the law; the maximum width of the enclosed area is compared and analyzed with the preset width, and the A-pillar of the target vehicle is evaluated according to the analysis result. The evaluation method for the blind spot of the automobile A-pillar of the present invention corrects the blind spot and obtains a comprehensive correction point to be suitable for judging the left and right A-pillars of the automobile. The obstacle area and the maximum obstacle width of the left and right A-pillars can be well checked. After comparison and analysis with the preset width, the influence of the left and right A-pillars on the actual field of view of the driver can be actually and intuitively reflected.

[0013] In addition, the evaluation method for the blind spot of the automobile A-pillar provided by the present invention may also have the following additional technical features:

[0014] Furthermore, the step of comparing and analyzing the maximum width of the enclosed area with a preset width and evaluating the A-pillar of the target vehicle according to the analysis result specifically includes:

[0015] Comparing and analyzing the maximum width of the enclosed area with a preset width;

[0016] If the difference between the maximum width of the enclosed area and the preset width exceeds a width threshold, it is determined that the A-pillar blind area of ​​the target vehicle in the preset seat state does not meet the requirements.

[0017] Furthermore, the step of correcting the blind spot of the target vehicle in the preset seat state according to the blind spot correction table to obtain the specific position of the correction point specifically includes:

[0018] Query and calculate according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point. Among them, the blind spot correction table includes a reference table, a first correction table, and a second correction table. The coordinate information of the correction point is based on the R point, and the position of the R point is the position of the intersection of the lower torso and the upper torso of the driver defined by regulations in the standard driving sitting posture.

[0019] Further, the blind spot correction table includes a reference table, a first correction table, and a second correction table. The step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes:

[0020] If the seat backrest angle in the preset seat state of the target vehicle is a preset angle and the seat horizontal adjustment stroke is lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table as the coordinate information of the correction point.

[0021] Further, the blind spot correction table includes a reference table, a first correction table, and a second correction table. The step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes:

[0022] If the seat backrest angle in the preset seat state of the target vehicle is a non - preset angle and the seat horizontal adjustment stroke is lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table;

[0023] Query and obtain the X - axis increment and Z - axis increment from the second correction table according to the angle of the seat backrest angle;

[0024] Add the X - axis increment and the Z - axis increment to the X - axis value and Z - axis value in the coordinate information of the reference correction point respectively to obtain the X - axis value and Z - axis value in the coordinate information of the correction point, and take the Y - axis value in the coordinate information of the reference correction point as the Y - axis value of the correction point.

[0025] Further, the blind spot correction table includes a reference table, a first correction table, and a second correction table. The step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes:

[0026] If the seat backrest angle in the preset seat state of the target vehicle is a preset angle and the seat horizontal adjustment stroke is not lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table;

[0027] Query and obtain the X - axis increment from the first correction table according to the seat horizontal adjustment stroke;

[0028] Add the X-axis increment to the value of the X-axis in the coordinate information of the reference correction point to obtain the value of the X-axis in the coordinate information of the correction point, and use the values of the Y-axis and Z-axis in the coordinate information of the reference correction point as the values of the Y-axis and Z-axis of the correction point.

[0029] Further, the blind spot correction table includes a reference table, a first correction table, and a second correction table. The step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes:

[0030] If the seat back angle in the preset seat state of the target vehicle is a non-preset angle and the seat horizontal adjustment stroke is not less than the preset stroke, obtain the coordinate information of the reference correction point from the reference table;

[0031] Query and obtain a first X-axis increment and a Z-axis increment from the second correction table according to the angle of the seat back angle, and query and obtain a second X-axis increment from the first correction table according to the seat horizontal adjustment stroke;

[0032] Add the first X-axis increment and the second X-axis increment to obtain a third X-axis increment;

[0033] Add the third X-axis increment and the Z-axis increment to the values of the X-axis and Z-axis in the coordinate information of the reference correction point respectively to obtain the values of the X-axis and Z-axis in the coordinate information of the correction point, and use the value of the Y-axis in the coordinate information of the reference correction point as the value of the Y-axis of the correction point.

[0034] The present invention also proposes an evaluation system for the blind area of the A-pillar of an automobile, including:

[0035] A correction module: used to correct the left and right A-pillar blind spots in the preset seat state of the target vehicle according to the blind spot correction table to obtain the position information of the correction point;

[0036] A first construction module: used to construct a first plane and a second plane respectively in front of the vehicle with the horizontal plane passing through the correction point as the reference plane. The first plane is a plane passing through the correction point and making a positive first preset angle with the reference plane, and the second plane is a plane passing through the correction point and making a negative second preset angle with the reference plane;

[0037] A second construction module: used to extract the outer contour surface of any A-pillar structure of the target vehicle, and construct outer tangent planes passing through the correction point and tangent to both sides of the outer contour surface of the A-pillar structure, denoted as the third plane and the fourth plane;

[0038] Assembly module: It is used to construct a spherical surface with the correction point as the center of the sphere and r as the radius, and form an enclosed area with the first plane, the second plane, the third plane, and the fourth plane, and obtain the maximum width of the enclosed area, where r is the distance of the zebra crossing at a traffic light intersection defined by regulations;

[0039] Judgment module: It is used to compare and analyze the maximum width of the enclosed area with a preset width and evaluate the A-pillar of the target vehicle according to the analysis result.

[0040] The present invention also provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the above-mentioned evaluation method for the blind area of the vehicle A-pillar is implemented.

[0041] The present invention also provides an evaluation device for the blind area of the vehicle A-pillar, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the above-mentioned evaluation method for the blind area of the vehicle A-pillar is implemented.

[0042] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0043] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0044] Figure 1 is a flowchart of the evaluation method for the blind area of the vehicle A-pillar according to the first embodiment of the present invention;

[0045] Figure 2 is a system block diagram of the evaluation system for the blind area of the vehicle A-pillar according to the second embodiment of the present invention;

[0046] Figure 3 is a structural schematic diagram of the evaluation device for the blind area of the vehicle A-pillar according to the third embodiment of the present invention. Detailed Embodiments

[0047] To make the objectives, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention is provided in conjunction with the drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0048] Embodiment 1

[0049] As Figure 1As shown in the figure, an embodiment of the present invention provides a method for evaluating the blind area of an automotive A-pillar, including steps S101 to S105.

[0050] S101, correct the left and right A-pillar blind spots in the preset seat state of the target vehicle according to the blind spot correction table to obtain the position information of the correction points.

[0051] Further, the step of correcting the blind spot in the preset seat state of the target vehicle according to the blind spot correction table to obtain the specific position of the correction point specifically includes:

[0052] Query and calculate according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point. Among them, the blind spot correction table includes a reference table, a first correction table, and a second correction table. The coordinate information of the correction point is based on the R point, and the position of the R point is the position of the intersection of the lower torso and the upper torso of the driver in the standard driving sitting posture defined by regulations.

[0053] Among them, the blind spot correction table includes a reference table, a first correction table, and a second correction table.

[0054] Further, the step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes:

[0055] If the seat back angle in the preset seat state of the target vehicle is a preset angle and the seat horizontal adjustment stroke is lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table as the coordinate information of the correction point.

[0056] Further, the step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes:

[0057] If the seat back angle in the preset seat state of the target vehicle is a non-preset angle and the seat horizontal adjustment stroke is lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table;

[0058] Query and obtain the X-axis increment and Z-axis increment from the second correction table according to the angle of the seat back angle;

[0059] Add the X-axis increment and the Z-axis increment to the X-axis value and Z-axis value in the coordinate information of the reference correction point respectively to obtain the X-axis value and Z-axis value in the coordinate information of the correction point, and take the Y-axis value in the coordinate information of the reference correction point as the Y-axis value of the correction point.

[0060] Further, the step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes:

[0061] If the seat backrest angle in the preset seat state of the target vehicle is a preset angle and the seat horizontal adjustment stroke is not less than the preset stroke, obtain the coordinate information of the reference correction point from the reference table;

[0062] Query and obtain the X-axis increment from the first correction table according to the seat horizontal adjustment stroke;

[0063] Add the X-axis increment to the value of the X-axis in the coordinate information of the reference correction point to obtain the value of the X-axis in the coordinate information of the correction point, and take the values of the Y-axis and Z-axis in the coordinate information of the reference correction point as the values of the Y-axis and Z-axis of the correction point.

[0064] Further, the step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes:

[0065] If the seat backrest angle in the preset seat state of the target vehicle is not a preset angle and the seat horizontal adjustment stroke is not less than the preset stroke, obtain the coordinate information of the reference correction point from the reference table;

[0066] Query and obtain the first X-axis increment and Z-axis increment from the second correction table according to the angle of the seat backrest angle, and query and obtain the second X-axis increment from the first correction table according to the seat horizontal adjustment stroke;

[0067] Add the first X-axis increment and the second X-axis increment to obtain a third X-axis increment;

[0068] Add the third X-axis increment and the Z-axis increment to the values of the X-axis and Z-axis in the coordinate information of the reference correction point respectively to obtain the values of the X-axis and Z-axis in the coordinate information of the correction point, and take the value of the Y-axis in the coordinate information of the reference correction point as the value of the Y-axis of the correction point.

[0069] The following are the specific data information of the reference table, the first correction table and the second correction table of the embodiments of the present invention respectively.

[0070] X Y Z Point Pm 43.36 0 627

[0071] Reference table

[0072] Among them, in the reference table, the Pm point is the correction point.

[0073] Seat horizontal adjustment stroke ΔX 108～120 -13 121～132 -22 133～145 -32 146～158 -42 Above 158 -48

[0074] First correction table

[0075] Wherein, in the first correction table, ΔX is the X-axis increment.

[0076] Angle of seat backrest / (°) ΔX ΔZ 5 -186 28 6 -177 27 7 -167 27 8 -157 27 9 -147 26 10 -137 25 11 -128 24 12 -118 23 13 -109 22 14 -99 21 15 -90 20 16 -81 18 17 -72 17 18 -62 15 19 -53 13 20 -44 11 21 -35 9 22 -26 7 23 -18 5 24 -9 3 25 0 0 26 9 -3 27 17 -5 28 26 -8 29 34 -11 30 43 -14 31 51 -18 32 59 -21 33 67 -24 34 76 -28 35 84 -32 36 92 -35 37 100 -39 38 108 -43 39 115 -48

[0077] Second correction table. Wherein, in the second correction table, ΔX is the X-axis increment and ΔZ is the Z-axis increment.

[0078] It should be noted that each coordinate information in the blind spot correction table is obtained through actual tests. Although the coordinate information of the correction points can be queried and calculated from the blind spot correction table, in the actual test process, it is obtained as follows: Obtain the position points of the driver's eyes when turning the head to observe the left A-pillar and the right A-pillar respectively in the standard driving sitting posture, and set them as point P1 and point P2. Construct a longitudinal vertical plane passing through point R and bisecting the human body, and obtain the intersection points of the longitudinal vertical plane and the line connecting point P1 and point P2. The obtained intersection points are the correction points. The coordinate information of point P1 and point P2 is based on point R as the reference coordinate point, and the coordinate information in the embodiments of the present invention is based on point R as the reference coordinate point, that is, the three-dimensional coordinates of point R are set as (0, 0, 0).

[0079] S102, respectively construct a first plane and a second plane in front of the vehicle with the horizontal plane passing through the correction point as the reference plane. The first plane is a plane passing through the correction point and making a positive first preset angle with the reference plane, and the second plane is a plane passing through the correction point and making a negative second preset angle with the reference plane.

[0080] Wherein, the first preset angle can preferably be 2 degrees, and the second preset angle can preferably be 5 degrees.

[0081] S103, extract the outer contour surface of any A-pillar structure of the target vehicle, and construct outer tangent planes passing through the correction point and tangent to both sides of the outer contour surface of the A-pillar structure, denoted as the third plane and the fourth plane.

[0082] S104, construct a spherical surface with the correction point as the center of the sphere and r as the radius, and form an enclosed area with the first plane, the second plane, the third plane and the fourth plane, and obtain the maximum width of the enclosed area, where r is the distance of the zebra crossing at the traffic light intersection defined by law.

[0083] Wherein, r can preferably be 12m.

[0084] S105, compare and analyze the maximum width of the enclosed area with a preset width, and evaluate the A-pillar of the target vehicle according to the analysis result.

[0085] Further, the step of comparing the maximum width of the enclosed area with a preset width and evaluating the A-pillar of the target vehicle according to the analysis result specifically includes:

[0086] Compare and analyze the maximum width of the enclosed area with the preset width;

[0087] If the difference between the maximum width of the enclosed area and the preset width exceeds the width threshold, it is determined that the A-pillar blind area of the target vehicle in the preset seat state does not meet the requirements.

[0088] It should be noted that the preset width can be the maximum width of the enclosed area of a competing vehicle model. The width threshold is preferably 200 mm. The maximum width of the enclosed area of the target vehicle is compared with the maximum width of the enclosed area of the competing vehicle model to obtain the difference. If the difference is greater than 200 mm, it means that the size of the A-pillar blind area of the target vehicle has reached a level that can be significantly perceived by the customer.

[0089] The maximum width of the enclosed area of the target vehicle should be appropriate. If it is too small, the body strength will be insufficient; if it is too large, it will affect the driver's vision. If the A-pillar blind area of the target vehicle meets the requirements, select the A-pillar structure with a larger maximum width of the enclosed area, which can not only ensure that the A-pillar structure does not affect the driver's vision but also ensure the body strength.

[0090] In summary, the evaluation method for the A-pillar blind area of an automobile provided by the present invention has the beneficial effects that: the present invention corrects the left and right A-pillar blind spots of the target vehicle in the preset seat state according to the blind spot correction table to obtain the position information of the correction points; respectively construct a first plane and a second plane in front of the vehicle with the horizontal plane passing through the correction points as the reference plane. The first plane is a plane passing through the correction point and forming a positive first preset angle with the reference plane, and the second plane is a plane passing through the correction point and forming a negative second preset angle with the reference plane; extract the outer contour surface of any A-pillar structure of the target vehicle, and construct outer tangent planes passing through the correction point and tangent to both sides of the outer contour surface of the A-pillar structure, denoted as the third plane and the fourth plane; construct a spherical surface with the correction point as the center of the sphere and r as the radius, and form an enclosed area with the first plane, the second plane, the third plane, and the fourth plane, and obtain the maximum width of the enclosed area, where r is the distance of the zebra crossing at a traffic light intersection defined by regulations; compare and analyze the maximum width of the enclosed area with the preset width and evaluate the A-pillar of the target vehicle according to the analysis result. The evaluation method for the A-pillar blind area of the automobile of the present invention first corrects the blind spots to obtain comprehensive correction points. The obtained correction points can well check the obstacle areas and the maximum obstacle widths of any left and right A-pillars, and can actually and intuitively reflect the influence of the left and right A-pillars on the driver's actual vision after comparing and analyzing with the preset width.

[0091] Embodiment 2

[0092] Please refer to Figure 2 , this embodiment provides an evaluation system for the blind area of the A-pillar of an automobile, including:

[0093] Correction module: used to correct the left and right A-pillar blind spots in the preset seat state of the target vehicle according to the blind spot correction table to obtain the position information of the correction points.

[0094] Among them, the blind spot correction table includes a reference table, a first correction table, and a second correction table.

[0095] The correction module is further used for:

[0096] Query and calculate according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction points. Among them, the blind spot correction table includes a reference table, a first correction table, and a second correction table. The coordinate information of the correction points is based on the R point, and the position of the R point is the intersection position of the lower torso and the upper torso of the driver defined by regulations in the standard driving sitting posture.

[0097] The correction module is further used for:

[0098] If the seat back angle in the preset seat state of the target vehicle is a preset angle and the seat horizontal adjustment stroke is lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table as the coordinate information of the correction points.

[0099] The correction module is further used for:

[0100] If the seat back angle in the preset seat state of the target vehicle is a non-preset angle and the seat horizontal adjustment stroke is lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table;

[0101] Query and obtain the X-axis increment and Z-axis increment from the second correction table according to the angle of the seat back angle;

[0102] Add the X-axis increment and the Z-axis increment to the X-axis value and Z-axis value in the coordinate information of the reference correction point respectively to obtain the X-axis value and Z-axis value in the coordinate information of the correction points, and take the Y-axis value in the coordinate information of the reference correction point as the Y-axis value of the correction points.

[0103] The correction module is further used for:

[0104] If the seat back angle in the preset seat state of the target vehicle is a preset angle and the seat horizontal adjustment stroke is not lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table;

[0105] Query and obtain the X-axis increment from the first correction table according to the seat horizontal adjustment stroke;

[0106] Add the X-axis increment to the X-axis value in the coordinate information of the reference correction point to obtain the X-axis value in the coordinate information of the correction point, and take the Y-axis value and Z-axis value in the coordinate information of the reference correction point as the Y-axis value and Z-axis value of the correction point.

[0107] The correction module is further configured to:

[0108] If the seat backrest angle in the preset seat state of the target vehicle is a non-preset angle and the seat horizontal adjustment stroke is not less than the preset stroke, obtain the coordinate information of the reference correction point from the reference table;

[0109] Query and obtain the first X-axis increment and Z-axis increment from the second correction table according to the angle of the seat backrest angle, and query and obtain the second X-axis increment from the first correction table according to the seat horizontal adjustment stroke;

[0110] Add the first X-axis increment and the second X-axis increment to obtain a third X-axis increment;

[0111] Add the third X-axis increment and the Z-axis increment to the X-axis value and Z-axis value in the coordinate information of the reference correction point respectively to obtain the X-axis value and Z-axis value in the coordinate information of the correction point, and take the Y-axis value in the coordinate information of the reference correction point as the Y-axis value of the correction point.

[0112] The first construction module: is used to construct a first plane and a second plane respectively in front of the vehicle with the horizontal plane passing through the correction point as the reference plane. The first plane is a plane passing through the correction point and making a positive first preset angle with the reference plane, and the second plane is a plane passing through the correction point and making a negative second preset angle with the reference plane.

[0113] The second construction module: is used to extract the outer contour surface of any A-pillar structure of the target vehicle, and construct outer tangent planes passing through the correction point and tangent to both sides of the outer contour surface of the A-pillar structure, denoted as the third plane and the fourth plane.

[0114] The assembly module: is used to construct a spherical surface with the correction point as the center of the sphere and r as the radius, and form an enclosed area with the first plane, the second plane, the third plane and the fourth plane, and obtain the maximum width of the enclosed area, where r is the distance of the zebra crossing at a traffic light intersection defined by law.

[0115] Judgment module: used to compare and analyze the maximum width of the surrounded area with a preset width and evaluate the A-pillar of the target vehicle according to the analysis result.

[0116] The judgment module is further used for:

[0117] Compare and analyze the maximum width of the surrounded area with the preset width;

[0118] If the difference between the maximum width of the surrounded area and the preset width exceeds the width threshold, it is determined that the A-pillar blind area of the target vehicle in the preset seat state does not meet the requirements.

[0119] Embodiment 3

[0120] Please refer to Figure 3 , the present invention also proposes an evaluation device for the A-pillar blind area of an automobile. Shown is the evaluation device for the A-pillar blind area of an automobile in the third embodiment of the present invention, including a memory 20, a processor 10, and a computer program 30 stored on the memory and executable on the processor. When the processor 10 executes the computer program 30, the evaluation method for the A-pillar blind area of the automobile as described above is implemented.

[0121] Among them, the evaluation device for the A-pillar blind area of the automobile can specifically be a computer, a server, a host computer, etc. In some embodiments, the processor 10 can be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chips, and is used to run the program code stored in the memory 20 or process data, such as executing an access restriction program, etc.

[0122] Among them, the memory 20 includes at least one type of readable storage medium. The readable storage medium includes flash memory, a hard disk, a multimedia card, a card-type memory (for example, an SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. The memory 20 can be an internal storage unit of the evaluation device for the A-pillar blind area of the automobile in some embodiments, such as the hard disk of the evaluation device for the A-pillar blind area of the automobile. The memory 20 can also be an external storage device of the evaluation device for the A-pillar blind area of the automobile in other embodiments, such as a plug-in hard disk equipped on the evaluation device for the A-pillar blind area of the automobile, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the memory 20 can also include both the internal storage unit and the external storage device of the evaluation device for the A-pillar blind area of the automobile. The memory 20 can not only be used to store the application software and various types of data installed in the evaluation device for the A-pillar blind area of the automobile, but also be used to temporarily store the data that has been output or will be output.

[0123] It should be noted that Figure 3 The structure shown does not constitute a limitation on the evaluation device for the blind area of the A-pillar of the vehicle. In other embodiments, the evaluation device for the blind area of the A-pillar of the vehicle may include fewer or more components than those shown, or combine certain components, or have different component arrangements.

[0124] An embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, it implements the evaluation method for the blind area of the A-pillar of the vehicle as described above.

[0125] The above embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. An evaluation method for the blind area of the A-pillar of a vehicle, characterized in that, the method includes: correcting the left and right A-pillar blind spots in the preset seat state of the target vehicle according to the blind spot correction table to obtain the position information of the correction points; respectively constructing a first plane and a second plane in front of the vehicle with the horizontal plane passing through the correction points as the reference plane. The first plane is a plane passing through the correction points and making a positive first preset angle with the reference plane, and the second plane is a plane passing through the correction points and making a negative second preset angle with the reference plane; extracting the outer contour surface of any A-pillar structure of the target vehicle, and constructing outer tangent planes passing through the correction points and tangent to both sides of the outer contour surface of the A-pillar structure, designated as the third plane and the fourth plane; constructing a spherical surface with the correction points as the center of the sphere and r as the radius, and forming an enclosed area with the first plane, the second plane, the third plane and the fourth plane, and obtaining the maximum width of the enclosed area, where r is the distance of the zebra crossing at a traffic light intersection defined by law; comparing and analyzing the maximum width of the enclosed area with a preset width and evaluating the A-pillar of the target vehicle according to the analysis result.

2. The evaluation method for the blind area of the A-pillar of a vehicle according to claim 1, characterized in that, the step of comparing and analyzing the maximum width of the enclosed area with a preset width and evaluating the A-pillar of the target vehicle according to the analysis result specifically includes: comparing and analyzing the maximum width of the enclosed area with a preset width; if the difference between the maximum width of the enclosed area and the preset width exceeds the width threshold, it is determined that the A-pillar blind area in the preset seat state of the target vehicle does not meet the requirements.

3. The evaluation method for the blind area of the A-pillar of a vehicle according to claim 1, characterized in that, the step of correcting the blind spots in the preset seat state of the target vehicle according to the blind spot correction table to obtain the specific position of the correction points specifically includes: querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction points. Among them, the blind spot correction table includes a reference table, a first correction table and a second correction table. The coordinate information of the correction points is based on the R point, and the position of the R point is the intersection of the lower torso and the upper torso of the driver in the standard driving sitting posture defined by law.

4. The evaluation method for the blind area of the A-pillar of a vehicle according to claim 3, characterized in that, the blind spot correction table includes a reference table, a first correction table and a second correction table. The step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction points specifically includes: if the seat back angle in the preset seat state of the target vehicle is a preset angle and the seat horizontal adjustment stroke is lower than the preset stroke, obtain the coordinate information of the reference correction points from the reference table as the coordinate information of the correction points.

5. The evaluation method for the blind area of the A-pillar of a vehicle according to claim 4, characterized in that, The blind spot correction table includes a reference table, a first correction table, and a second correction table. The step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes: If the seat backrest angle in the preset seat state of the target vehicle is a non-preset angle and the seat horizontal adjustment stroke is lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table; Query and obtain the X-axis increment and Z-axis increment from the second correction table according to the angle of the seat backrest angle; Add the X-axis increment and the Z-axis increment to the X-axis value and Z-axis value in the coordinate information of the reference correction point respectively to obtain the X-axis value and Z-axis value in the coordinate information of the correction point, and take the Y-axis value in the coordinate information of the reference correction point as the Y-axis value of the correction point.

6. The method for evaluating the blind area of the A-pillar of an automobile according to claim 4, characterized in that, The blind spot correction table includes a reference table, a first correction table, and a second correction table. The step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes: If the seat backrest angle in the preset seat state of the target vehicle is a preset angle and the seat horizontal adjustment stroke is not lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table; Query and obtain the X-axis increment from the first correction table according to the seat horizontal adjustment stroke; Add the X-axis increment to the X-axis value in the coordinate information of the reference correction point to obtain the X-axis value in the coordinate information of the correction point, and take the Y-axis value and Z-axis value in the coordinate information of the reference correction point as the Y-axis value and Z-axis value of the correction point.

7. The method for evaluating the blind area of the A-pillar of an automobile according to claim 4, characterized in that, The blind spot correction table includes a reference table, a first correction table, and a second correction table. The step of querying and calculating according to the preset seat state of the target vehicle with reference to the blind spot correction table to obtain the coordinate information of the correction point specifically includes: If the seat backrest angle in the preset seat state of the target vehicle is a non-preset angle and the seat horizontal adjustment stroke is not lower than the preset stroke, obtain the coordinate information of the reference correction point from the reference table; Query and obtain the first X-axis increment and Z-axis increment from the second correction table according to the angle of the seat backrest angle, and query and obtain the second X-axis increment from the first correction table according to the seat horizontal adjustment stroke; Add the first X-axis increment and the second X-axis increment to obtain a third X-axis increment; Add the third X-axis increment and the Z-axis increment to the X-axis value and Z-axis value in the coordinate information of the reference correction point respectively to obtain the X-axis value and Z-axis value in the coordinate information of the correction point, and take the Y-axis value in the coordinate information of the reference correction point as the Y-axis value of the correction point.

8. An evaluation system for the blind area of the A-pillar of an automobile, characterized in that, comprising: Correction module: used to correct the left and right A-pillar blind spots in the preset seat state of the target vehicle according to the blind spot correction table to obtain the position information of the correction points; First construction module: used to construct a first plane and a second plane respectively facing the front of the vehicle with the horizontal plane passing through the correction point as the reference plane. The first plane is a plane passing through the correction point and making a positive first preset angle with the reference plane, and the second plane is a plane passing through the correction point and making a negative second preset angle with the reference plane; Second construction module: used to extract the outer contour surface of any A-pillar structure of the target vehicle, and construct outer tangent planes passing through the correction point and tangent to both sides of the outer contour surface of the A-pillar structure, denoted as the third plane and the fourth plane; Assembly module: used to construct a spherical surface with the correction point as the center of the sphere and r as the radius, and form an enclosed area with the first plane, the second plane, the third plane and the fourth plane, and obtain the maximum width of the enclosed area, where r is the distance of the zebra crossing at a traffic light intersection defined by regulations; Judgment module: used to compare and analyze the maximum width of the enclosed area with a preset width and evaluate the A-pillar of the target vehicle according to the analysis result.

9. A computer-readable storage medium, on which a computer program is stored, Characterized in that, When the program is executed by a processor, it implements the evaluation method for the blind area of the automotive A-pillar as described in any one of claims 1-7.

10. An evaluation device for the blind area of an automotive A-pillar, Characterized in that, It includes a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, it implements the evaluation method for the blind area of the automotive A-pillar as described in any one of claims 1-7.

Images