CN109991019B - Automobile visual field checking method - Google Patents
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- CN109991019B CN109991019B CN201910426324.4A CN201910426324A CN109991019B CN 109991019 B CN109991019 B CN 109991019B CN 201910426324 A CN201910426324 A CN 201910426324A CN 109991019 B CN109991019 B CN 109991019B
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Abstract
The invention particularly relates to an automobile vision checking method which is high in checking precision, small in subsequent manual checking workload and accurate in manual checking. The method comprises the steps of setting automobile parameters, checking the visual field and manually checking; the laser scanning device only draws model parameters related to the view check, and the analysis speed is high; the checking system can automatically finish all contents of the vision checking, has high checking precision and good accuracy, and can be conveniently used for different types of automobiles; the test precision and the accuracy of the manual checking step are determined; the result of manual check can be directly fed back to the controller to finish correction, and the workload of subsequent manual check is small.
Description
The application has the following application numbers: 201710689169.6, filing date: 2017-08-11, patent name "a method for checking the field of vision in automotive ergonomics".
Technical Field
The invention relates to the field of automobile ergonomics testing, in particular to an automobile visual field checking method.
Background
The visual field design in the automobile ergonomics is very important content and is a main influence factor of the active safety of an automobile; for this reason, it is a task of vehicle vision planning to ensure the vision requirements of the vehicle driver, such as recognition and information acquisition of external signals and signs, road boundaries, passing vehicles and pedestrians on roads.
For example, the size of the front windshield glass of an automobile can affect the forward vision of a driver, the A column can cause a blind zone with a certain angle in the forward vision of the driver, and the factors have corresponding standards and specifications for safe driving; the existing automobile vision field design mode is divided into two modes, one mode is a traditional drawing method, the basic principle is that a side view, a front view and a rear view of an automobile are drawn, then the position of an eye ellipse is positioned at a corresponding position in the side view of the automobile, and finally the vision field area range of the eye ellipse is calculated by using the drawing method, but the method has a complicated process, the manual drawing checking precision is low, and errors are easy to generate;
the other design mode is that a drawn automobile three-dimensional model is placed in ergonomic checking software, and a visual field is automatically generated by the software, but when the visual field range of the rearview mirror is checked, the rearview mirror can only be selected to be positioned at a certain angle for static checking, and the positions and the rotating angles of the outer rearview mirror and the inner rearview mirror used in practice are adjustable, so that a certain degree of error is caused, and the checking result is inaccurate; the drawing of the automobile three-dimensional model is very complex, the whole automobile model is not actually needed during the visual field check, and only the modeling of local parts for shielding the visual field is needed, so that the requirement that the automobile three-dimensional model is simplified in advance before the human-machine engineering check software is introduced is met, and the check workload is further increased;
both the two methods generate some deviation from the actual situation during calculation, and designers hardly find problems in the design or check stage, and no method is available for effectively testing the check situation; therefore, after the automobile vision field design work is finished, a tester needs to sit in the automobile to perform corresponding tests, if the upper and lower boundary lines of the rear windshield in the front view meet the requirements, the tester needs to sit in the automobile, then an object behind the automobile is observed through an interior rearview mirror, and then the tester makes a judgment, so that the subsequent manual checking process has complicated steps, the precision requirement of each step is high in order to keep the result correct, and the difficulty of manual checking is further increased; human eyes are also easily affected by field environments during observation, such as illumination brightness, calibration objects and other factors, so that the result of manual checking is not ideal.
Disclosure of Invention
The invention aims to provide an automobile vision checking method which is high in checking precision, small in workload of subsequent manual checking and accurate in manual checking.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a method for checking the field of view of an automobile, said method comprising the steps of: setting automobile parameters, checking the visual field and manually checking;
the automobile parameter setting steps are as follows: the controller establishes a reference coordinate system in three-dimensional modeling software by taking the ground as a horizontal plane, a vertical plane where the central connecting lines of the left front wheel and the right front wheel of the automobile are located as a transverse plane and a longitudinal central symmetric plane of the automobile as a longitudinal plane; fixing the multi-axis manipulator on a driver seat, adjusting the driver seat to the end, and then adjusting the multi-axis manipulator to enable the clamping jaw to be located at a specific position; the first laser scanner in the vehicle and the second laser scanner in the vehicle scan the inclination angle of the backrest of the driver seat, and the controller controls the manual checking equipment to enable the inclination angle of the test seat to be consistent with the inclination angle of the backrest of the driver seat; then the following steps are carried out in sequence:
a. the method comprises the following steps that a first laser scanner outside the automobile and a second laser scanner outside the automobile are matched to scan the outside contour parameters and position parameters of an A column, a B column, front windshield glass, door glass and rear windshield glass of the automobile and the mirror surface size parameters and position parameters of an outside rearview mirror of the automobile;
the controller respectively extracts the position of the clamping jaw around the self rotation central point and the position of the simulated light source central point, and marks the positions in three-dimensional modeling software, then the central point of a 95 th percent human eye ellipse three-dimensional model is superposed with the simulated light source central point in the three-dimensional modeling software, then the surface of the human eye ellipse three-dimensional model is dispersed into a plurality of moving point positions, the central point of the clamping jaw around the self rotation is taken as a rotation point, the angle ranges of the clamping jaw around the rotation point, facing the front of the automobile and rotating by 90 degrees relative to the left and right longitudinal surfaces are dispersed into a plurality of rotation point positions, then coordinate parameters of a plurality of moving point positions and angle parameters of the plurality of rotation point positions are sent to the multi-axis manipulator and control the movement of the multi-axis manipulator, and the central point of; when passing through each moving point position, the clamping jaw rotates around the rotating point within 90 degrees in the left and right directions respectively through all the rotating angular points, and then the simulation light source moves to the next moving point position; the clamping jaw is always kept in a horizontal state in the moving process of the simulated light source; when the clamping jaw is positioned at each rotating angular point, a first laser scanner in the vehicle and a second laser scanner in the vehicle, which are arranged on the simulation light source, scan the inside contour parameters and the position parameters of an A column, a B column, a front windshield, door glass and a rear windshield in the vehicle in real time, and the mirror surface size parameters and the position parameters of a rearview mirror in the vehicle;
b. b, leading the parameters scanned by the laser scanning device in the step a into three-dimensional modeling software by the controller, respectively establishing three-dimensional models and respective position parameters of an A column, a B column, a front windshield, door glass and a rear windshield of the automobile, and three-dimensional models and respective position parameters of an exterior rearview mirror and an interior rearview mirror of the automobile to form a three-dimensional model for visual field check, and converting the three-dimensional model for visual field check into a VR three-dimensional model through intermediate software;
the visual field checking step comprises the following steps which are carried out in sequence:
c. the central point of the simulated light source passes through all the moving point positions for the second time;
d. in the step c, when the simulation light source is at each moving point position, the simulation light source moves to the next moving point position after the clamping jaw rotates around the rotating point and passes through all the rotating angular points;
e. in the step b, the light receiving device receives light rays emitted by the analog light source when the analog light source is positioned at each rotating angular point, and sends the boundary parameters of the area irradiated by the light receiving device to the controller;
f. in the step e, the controller judges according to the three-dimensional model for visual field check, the position of the moving point position of the simulation light source and the angle parameter of the rotating angular point of the clamping jaw, if the simulation light source irradiates the exterior mirror or the interior mirror, the step g is carried out, otherwise, the step h is carried out;
g. when the simulation light source irradiates the exterior rear mirror, the controller calculates the sum of all the zone boundaries of the simulation light source, which can irradiate a backward photoelectric receiving plate, in a plurality of rotation angle points of a certain corresponding moving point position, marks the sum of the zone boundaries as an exterior rear mirror visual area, and then marks one of a plurality of exterior rear mirror visual areas formed by the simulation light source moving to different moving point positions, which has the smallest area, as a first indirect visual area; when the simulated light source irradiates the interior rearview mirror, the controller calculates the sum of all the zone boundaries of the simulated light source which can irradiate a backward photoelectric receiving plate in a plurality of rotating corner points of a certain corresponding moving point position, marks the sum of the zone boundaries as an interior rearview mirror visual area, and then marks one of a plurality of interior rearview mirror visual areas formed by the simulated light source moving to different moving point positions as a second indirect visual area, wherein the area of the second indirect visual area is the smallest; then entering step i;
h. the controller calculates the sum of all areas which can irradiate the forward photoelectric receiving plate or the sum of all areas which can irradiate the lateral photoelectric receiving plate in a plurality of rotating corner points of a corresponding moving point position of the simulation light source, and marks the sum as a forward visual area or a lateral visual area respectively, marks the minimum area in the forward visual area of the moving point positions as a first direct visual area, marks the minimum area in the lateral visual area of the moving point positions as a second direct visual area, and marks the sum of the first direct visual area and the second direct visual area as a direct visual area; recording an area where the front photoelectric receiving plate does not receive light all the time when the analog light source irradiates the A column as an A column binocular blind area; recording an area where the lateral photoelectric receiving plate does not receive light all the time when the simulated light source irradiates the B column as a B column binocular blind area; then entering step i;
i. the controller leads the human eye ellipse three-dimensional model and the position parameters in the three-dimensional modeling software into VR software to form a standard eye ellipse range; then entering step j;
the manual checking step comprises the following steps which are carried out in sequence;
j. a tester sits on the test seat after wearing VR glasses, the eyes horizontally and visually see the front, the camera reads the position of the VR glasses at the moment, the controller calculates the positions of the eyes of the tester according to the positions of the VR glasses, when the positions of the eyes of the tester are within the standard eye ellipse range, the step k is carried out, otherwise, the sitting posture is prompted to be adjusted again, and the step j is repeated;
k. a tester moves the eyes back and forth and left and right in a VR space and horizontally rotates the head, observes a calibration object at a specific position outside the VR three-dimensional model by using the VR three-dimensional model, and enters the step m if the calibration object can be seen; if the calibration object can not be seen, entering the step n;
m. the test is finished;
n. the controller adds the eye position of the test person at that time to the plurality of movement points, and then re-performs steps c through k.
Preferably, in the step k, if the eye position of the tester exceeds the standard eye ellipse range during observation, the human eye range is prompted to exceed, and the step k is performed again.
Preferably, in the step g, when the clamping jaw rotates to a certain rotation angular point, the exterior mirror moves to the limit position from left to right and up and down respectively, or the interior mirror rotates to the limit position from left to right and up and down respectively, and then the clamping jaw rotates to the next rotation angular point.
Preferably, in the step i, the controller marks the boundary lines of the first indirect visual area and the second indirect visual area obtained in the step g in the VR three-dimensional model, and marks the boundary line of the direct visual area obtained in the step h and the boundary lines of the binocular dead zone of the column a and the binocular dead zone of the column B in the VR three-dimensional model to form a standard boundary line;
in the step k, the tester marks out virtual boundary lines of a direct visual area, an A column binocular blind area, a B column binocular blind area, a first indirect visual area and a second indirect visual area in the VR three-dimensional model by using a VR handle or a controller; the controller compares the virtual boundary lines with the stored standard boundary lines, and if the virtual boundary lines are located outside the standard boundary lines, the step m is carried out; if the virtual boundary line is within a certain range of the standard boundary line, step n is entered.
The invention has the following beneficial effects: the laser scanning device scans the automobile to be tested, the three-dimensional model drawing process is rapid and convenient, only model parameters related to the visual field check are drawn, and the analysis speed is high; the light receiving device can automatically finish all contents of visual field check by matching with the simulation light source and the multi-axis manipulator, has high check precision and good accuracy, and can be conveniently used for different types of automobiles; the tester directly observes the corresponding VR model in the VR space, so the observation effect is good, environmental factors such as illumination conditions and the like can be freely designed in the VR space, the placing position of a calibration object can also have high precision, and the test precision and the accuracy of the manual checking step are greatly improved; the result of manual check can be directly fed back to the controller, and the check system completes the correction work, thereby reducing the subsequent workload of manual check.
Drawings
FIG. 1 is a front view of a checking system;
FIG. 2 is a top view of a checking system;
FIG. 3 is a top view of the jaw in connection with a simulated light source;
FIG. 4 is a schematic diagram of a top view of the simulated light source rotated 90 degrees to the right and a left view of the simulated light source;
FIG. 5 is a schematic diagram of a manual calibration apparatus;
FIG. 6 is a schematic diagram of a checking system circuit;
FIG. 7 is a flowchart of a verification operation using the verification system;
FIG. 8 is a flowchart of a preferred verification process.
Detailed Description
The method for checking the visual field of the automobile shown in the figures 1-8 comprises the steps that the automobile to be tested is included, a fixing support is arranged on a driver seat in the automobile to be tested, the fixing support can be provided with a clamp at the bottom, the clamp is tightly clamped with the surface of the seat, the fixing support can also be formed by overlapping a plurality of steel pipes, and the bottoms of the steel pipes are directly connected with a sliding rail at the bottom of the seat through bolts; the fixed support is provided with a multi-axis manipulator 11 which can move along the longitudinal direction, the transverse direction and the vertical direction of the automobile, generally a five-axis or six-axis manipulator can be adopted, and a four-axis manipulator can also be arranged on a slide rail; a clamping jaw 13 horizontally arranged is arranged at the end part of the upper end of the manipulator 11;
the clamping jaw 13 can rotate around a vertical axis passing through a central point of the clamping jaw 13, the outer end of the clamping jaw 13 is provided with two simulation light sources 12 which are parallel to each other and horizontally placed, in order to effectively ensure that the rotating central point of the clamping jaw 13 simulates a head rotating point of a human body, the simulation light sources 12 simulate human eyes, the simulation is accurate, the distance between the central points of the two simulation light sources 12 is 65mm, and the horizontal distance from the connecting middle point of the two simulation light sources 12 to the rotating central point of the clamping jaw 13 is 99 mm.
The simulated light source 12 is an oval spherical shell with the size consistent with that of human eyes, a luminous body 14 is arranged at the central point of the simulated light source 12, one part of the shell of the simulated light source 12 facing the front of the automobile is a light-transmitting area 15 made of transparent materials, which can be glass or transparent plastic materials, and the rest of the shell is made of shading materials, which can be plastic materials or metal materials;
the range of the light-transmitting area 15 is an upper boundary and a lower boundary which are formed by intersecting lines of first inclined planes inclined by 45 degrees towards the front upper part and the front lower part and the surface of the simulation light source 12 by taking the center point of the simulation light source as an origin and passing through the center point of the simulation light source 12; the intersection line of a second inclined plane which is inclined by 60 degrees towards the left front and the right front and the surface of the simulation light source 12 forms a left boundary and a right boundary by taking the center point of the simulation light source 12 as an origin and passing through the center point of the simulation light source, and a quadrilateral area formed by connecting the upper boundary and the lower boundary with the left boundary and the right boundary is a light-transmitting area 15; the first inclined plane is vertical to a vertical plane where the longitudinal center of the automobile is located, and the second inclined plane is vertical to a horizontal plane; the upper surface and the lower surface of the simulation light source 12 are respectively provided with an in-vehicle first laser scanner 51 and an in-vehicle second laser scanner 52;
the method comprises the following steps that a light receiving device 30 is arranged around an automobile to be tested, the light receiving device 30 comprises a front photoelectric receiving plate 31, a side photoelectric receiving plate 32 and a rear photoelectric receiving plate 33 which are respectively positioned in front of, at the side of and at the rear of the automobile to be tested, and a plurality of first laser scanners 53 outside the automobile are arranged at corresponding positions in the light receiving device 30; a second vehicle-exterior laser scanner 54 capable of moving along the longitudinal direction of the vehicle is arranged right above the vehicle to be detected; the first in-vehicle laser scanner 51, the second in-vehicle laser scanner 52, the first out-vehicle laser scanner 53, and the second out-vehicle laser scanner 54 together constitute a laser scanning device 50;
the multi-axis manipulator 11, the simulation light source 12, the laser scanning device 50 and the light receiving device 30 are respectively in communication connection with the controller 5 in a wired or wireless mode; three-dimensional modeling software and intermediate software for converting the three-dimensional model into a VR model are arranged in the controller 5, and a 95 th percent human eye ellipse three-dimensional model is stored in the controller 5;
the controller 5 is also in communication connection with a manual checking device 60, the manual checking device 60 comprises a test seat 62, the inclination angle of the backrest of which can be controlled by the controller 5, the backrest of the test seat 62 can be adjusted by an electric motor or a hydraulic piston cylinder, and the controller 5 is in communication connection with an oil pump of the electric motor or the hydraulic piston cylinder; the size of the test seat 62 is consistent with the size of the driver seat of the automobile to be tested; a camera 63 disposed near the test seat 62 communicates with the VR glasses 61 so that the camera 63 can capture the position of the VR glasses 61 relative to the test seat 62.
The automobile visual field checking method comprises the following steps: setting automobile parameters, checking the visual field and manually checking;
the automobile parameter setting steps are as follows: the controller 5 establishes a reference coordinate system in the three-dimensional modeling software by taking the ground as a horizontal plane, a vertical plane where the central connecting lines of the left and right front wheels of the automobile are located as a transverse plane and a longitudinal central symmetric plane of the automobile as a longitudinal plane; fixing the multi-axis manipulator 11 on a driver seat, adjusting the driver seat to the end, and then adjusting the multi-axis manipulator 11 to enable the clamping jaw 13 to be located at a specific position; the first and second in- vehicle laser scanners 51 and 52 scan the inclination angle of the back of the driver seat, and the controller 5 controls the manual checking device 60 so that the inclination angle of the test seat 62 is consistent with the inclination angle of the back of the driver seat; then the following steps are carried out in sequence:
a. the first laser scanner 53 outside the vehicle and the second laser scanner 54 outside the vehicle cooperate to scan the outside contour parameters and position parameters of the a pillar, the B pillar, the front windshield, the door glass, and the rear windshield of the vehicle, and the mirror surface size parameters and position parameters of the outside mirror 21;
the controller 5 respectively extracts the position of the clamping jaw 13 around the self rotation central point and the position of the central point of the simulated light source 12, marks the positions in three-dimensional modeling software, then coincides the central point of a 95 th-percentile human eye ellipse three-dimensional model with the central point of the simulated light source 12 in the three-dimensional modeling software, disperses the surface of the human eye ellipse three-dimensional model into a plurality of moving point positions, disperses the angular ranges of the clamping jaw 13 which rotates around the self rotation central point and faces the front of the automobile by 90 degrees relative to the left and the right of a longitudinal plane into a plurality of rotation angular points by taking the central point of the clamping jaw 13 around the self rotation central point as the rotation point, then sends the coordinate parameters of the plurality of moving point positions and the angular parameters of the plurality of rotation angular points to the multi-axis manipulator 11 and controls the movement of the multi-axis; when passing through each moving point position, the clamping jaw 13 rotates around the rotating point within 90 degrees in the left and right directions respectively through all the rotating angular points, and then the simulation light source 12 moves to the next moving point position; the clamping jaw 13 is always kept in a horizontal state in the moving process of the simulated light source 12; when the clamping jaw 13 is located at each rotation angular point, the inside contour parameters and the position parameters of an A column, a B column, a front windshield, a door glass and a rear windshield in the vehicle and the mirror surface size parameters and the position parameters of the inside rearview mirror 22 in the vehicle are scanned in real time by the first laser scanner 51 and the second laser scanner 52 in the vehicle, which are arranged on the simulation light source 12;
b. the controller 5 introduces the parameters scanned by the laser scanning device 50 in the step a into three-dimensional modeling software, respectively establishes three-dimensional models and respective position parameters of an A column, a B column, a front windshield, door glass and a rear windshield of the automobile, and three-dimensional models and respective position parameters of an exterior rearview mirror 21 and an interior rearview mirror 22 to form a three-dimensional model for visual field check, and then converts the three-dimensional model for visual field check into a VR three-dimensional model through intermediate software;
the visual field checking step comprises the following steps which are carried out in sequence:
c. the central point of the simulated light source 12 passes through all the moving point positions for the second time;
d. in the step c, when the simulated light source 12 is at each moving point position, the simulated light source 12 moves to the next moving point position after the clamping jaw 13 rotates around the rotating point and passes through all the rotating angular points;
e. in the step b, the light receiving device 30 receives light emitted by the analog light source (12) when the analog light source is positioned at each rotation corner point, and sends the boundary parameters of the area irradiated by the light receiving device 30 to the controller 5;
f. in the step e, the controller 5 judges according to the three-dimensional model for visual field check, the position of the moving point position of the simulation light source 12 and the angle parameter of the rotating angle point of the clamping jaw 13, if the simulation light source 12 irradiates the exterior mirror 21 or the interior mirror 22, the step g is carried out, otherwise, the step h is carried out;
g. when the simulated light source 12 irradiates the exterior rear mirror 21, the controller 5 calculates the sum of all the area boundaries of the simulated light source (12) which can irradiate the backward photoelectric receiving board 33 in a plurality of rotating corner points of a corresponding certain moving point position, marks the sum of the area boundaries as an exterior rear mirror visual area, and then marks one of a plurality of exterior rear mirror visual areas formed by moving the simulated light source 12 to different moving point positions, which has the smallest area, as a first indirect visual area; when the simulated light source 12 irradiates the interior mirror 22, the controller 5 calculates the sum of all the zone boundaries of the simulated light source (12) which can irradiate the backward photoelectric receiving board 33 in a plurality of rotating corner points of a corresponding certain moving point position, marks the sum of the zone boundaries as an interior mirror visual area, and then marks one of the plurality of interior mirror visual areas formed by moving the simulated light source 12 to different moving point positions as a second indirect visual area, wherein the area of the one of the plurality of interior mirror visual areas is the smallest; then entering step i;
h. the controller 5 calculates the sum of all areas capable of irradiating the forward photoelectric receiving plate 31 or the sum of all areas capable of irradiating the lateral photoelectric receiving plate 32 in a plurality of rotating corner points of a corresponding certain moving point position of the analog light source (12) to be respectively marked as a forward visual area or a lateral visual area, marks the minimum area in the forward visual area of the plurality of moving point positions as a first direct visual area, marks the minimum area in the lateral visual area of the plurality of moving point positions as a second direct visual area, and marks the sum of the first direct visual area and the second direct visual area as a direct visual area; recording an area where the front photoelectric receiving plate 31 does not receive light all the time when the analog light source 12 irradiates the column A as a column A binocular blind area; recording the area where the lateral photoelectric receiving plate 32 does not receive light all the time when the simulated light source 12 irradiates the B column as a B column binocular blind area; then entering step i;
i. the controller 5 leads the human eye ellipse three-dimensional model and the position parameters in the three-dimensional modeling software into VR software to form a standard eye ellipse range; then entering step j;
the manual checking step comprises the following steps which are carried out in sequence;
j. a tester wears VR glasses 61 and sits on a test seat 62, the eyes horizontally view the front, a camera 63 reads the position of the VR glasses 61 at the moment, a controller 5 calculates the positions of the eyes of the tester according to the positions of the VR glasses 61, when the positions of the eyes of the tester are within the standard eye ellipse range, the step k is carried out, otherwise, the sitting posture is prompted to be adjusted again, and the step j is repeated;
k. a tester moves the eyes back and forth and left and right in a VR space and horizontally rotates the head, observes a calibration object at a specific position outside the VR three-dimensional model by using the VR three-dimensional model, and enters the step m if the calibration object can be seen; if the calibration object can not be seen, entering the step n;
the calibration object is the calibration object which is set at the corresponding position in the VR space according to the requirements of direct vision and indirect vision in relevant vision check regulations, for example, the automobile interior rearview mirror requires that the traffic condition at the position 60m behind the last H point can be seen from the vertical direction visual angle, then in the VR space, the position of the last H point is calculated according to the relevant formula by using the positions of human eyes of a tester, a virtual indicator lamp is set at the position 60m behind the last H point, and the tester observes whether the virtual indicator lamp can be seen or not in the VR space by using the VR model of the automobile interior rearview mirror 22, and if the virtual indicator lamp can be seen, the design of the automobile interior rearview mirror 22 meets the requirements; because the tester is the corresponding VR model of direct observation in the VR space, consequently the observation effect is good, and can freely design environmental factor in the VR space, like illumination condition etc. also can have very high precision to the locating place of calibration object, has improved the test accuracy and the accurate definite of artifical check step greatly.
m. the test is finished;
n. the controller 5 adds the eye position of the test person at this time to a plurality of moving points, and then repeats steps c to k.
The better implementation mode is as follows: in the step k, if the positions of the human eyes of the tester exceed the standard eye ellipse range during observation, the human eyes are prompted to exceed the range, and the step k is carried out again.
Because the exterior mirror 21 and the interior mirror 22 can be adjusted left and right and up and down in the using process, in order to improve the checking accuracy of the first indirect viewing zone and the second indirect viewing zone, the better embodiment is as follows: in step g, when the clamping jaw 13 rotates to a certain rotation angular point, the exterior mirror 21 moves to the limit position from left to right and up and down respectively, or the interior mirror 22 rotates to the limit position from left to right and up and down respectively, and then the clamping jaw 13 rotates to the next rotation angular point again.
Because whether interior mirror 22 or A post design can only be judged to accord with the standard to observe the calibration article, but can't judge the good and bad degree of corresponding design, consequently to more skilled tester, the better implementation mode is: in the step i, the controller 5 marks the boundary lines of the first indirect visual area and the second indirect visual area obtained in the step g in the VR three-dimensional model, and marks the boundary line of the direct visual area obtained in the step h and the boundary lines of the A column binocular dead zone and the B column binocular dead zone in the VR three-dimensional model to form a standard boundary line;
in the step k, the tester marks out virtual boundary lines of a direct visual area, an A column binocular blind area, a B column binocular blind area, a first indirect visual area and a second indirect visual area in the VR three-dimensional model by using a VR handle or a controller; the controller 5 compares these virtual boundary lines with the stored standard boundary lines, and if the virtual boundary lines are outside the standard boundary lines, the process goes to step m; if the virtual boundary line is within a certain range of the standard boundary line, step n is entered.
Meanwhile, the controller 5 can also compare the proximity degree between the virtual boundary line and the standard boundary line, so that the visual field of a plurality of different types of automobiles to be tested is good or bad.
Claims (2)
1. A method for checking the view field of an automobile is characterized in that: the method comprises the following steps: setting automobile parameters, checking the visual field and manually checking;
the automobile parameter setting steps are as follows: the controller (5) establishes a reference coordinate system in three-dimensional modeling software by taking the ground as a horizontal plane, a vertical plane where the central connecting lines of the left front wheel and the right front wheel of the automobile are located as a transverse plane and a longitudinal central symmetrical plane of the automobile as a longitudinal plane; fixing the multi-axis manipulator (11) on a driver seat, adjusting the driver seat to the end, and then adjusting the multi-axis manipulator (11) to enable the clamping jaw (13) to be located at a specific position; the first laser scanner (51) and the second laser scanner (52) in the vehicle scan the inclination angle of the back of the driver seat, and the controller (5) controls the manual checking device (60) to enable the inclination angle of the test seat (62) to be consistent with the inclination angle of the back of the driver seat; then the following steps are carried out in sequence:
a. the first laser scanner (53) outside the automobile and the second laser scanner (54) outside the automobile are matched to scan the outside contour parameters and the position parameters of the A column, the B column, the front windshield, the door glass and the rear windshield of the automobile and the mirror surface size parameters and the position parameters of the rearview mirror (21) outside the automobile;
the first in-vehicle laser scanner (51), the second in-vehicle laser scanner (52), the first out-vehicle laser scanner (53) and the second out-vehicle laser scanner (54) jointly form a laser scanning device (50);
the controller (5) respectively extracts the position of the clamping jaw (13) around the self rotation central point and the position of the central point of the simulated light source (12) and marks the positions in three-dimensional modeling software, then, the center point of the 95 th percentile human eye ellipse three-dimensional model is coincided with the center point of the simulation light source (12) in the three-dimensional modeling software, then the surface of the human eye ellipse three-dimensional model is dispersed into a plurality of moving point positions, the central point of the clamping jaw (13) rotating around itself is taken as a rotating point, the angle ranges of the clamping jaw (13) rotating around the rotating point and facing the front of the automobile by 90 degrees respectively relative to the left and the right of the longitudinal surface are dispersed into a plurality of rotating angle points, then, sending coordinate parameters of a plurality of moving point positions and angle parameters of a plurality of rotating corner points to the multi-axis manipulator (11) and controlling the motion of the multi-axis manipulator, so that the central point of the simulation light source (12) passes through all the moving point positions for the first time; when passing through each moving point position, the clamping jaw (13) rotates around the rotating point within 90 degrees in the left and right directions respectively through all the rotating angular points, and then the simulation light source (12) moves to the next moving point position; the clamping jaw (13) is always kept in a horizontal state in the moving process of the simulation light source (12); when the clamping jaw (13) is positioned at each rotating angular point, a first laser scanner (51) in the vehicle and a second laser scanner (52) in the vehicle, which are arranged on the simulation light source (12), scan the inside contour parameters and the position parameters of a column A, a column B, a front windshield, door glass and a rear windshield in the vehicle in real time, and the mirror surface size parameters and the position parameters of a rearview mirror (22) in the vehicle;
b. the controller (5) introduces the parameters scanned by the laser scanning device (50) in the step a into three-dimensional modeling software, three-dimensional models and respective position parameters of an A column, a B column, a front windshield, door glass and a rear windshield of the automobile and three-dimensional models and respective position parameters of an exterior rearview mirror (21) and an interior rearview mirror (22) of the automobile are respectively established, a three-dimensional model for visual field check is formed, and then the three-dimensional model for visual field check is converted into a VR three-dimensional model through intermediate software;
the visual field checking step comprises the following steps which are carried out in sequence:
c. the central point of the simulated light source (12) passes through all the moving point positions for the second time;
d. in the step c, when the simulation light source (12) is at each moving point position, after the clamping jaw (13) rotates around the rotating point and passes through all rotating angular points, the simulation light source (12) moves to the next moving point position again;
e. in the step a, the light receiving device (30) receives light rays emitted by the simulation light source (12) when the simulation light source is positioned at each rotating corner point, and sends the boundary parameters of the irradiated area of the light receiving device (30) to the controller (5);
f. in the step e, the controller (5) judges according to the three-dimensional model for visual field check, the position of the moving point position of the simulation light source (12) and the angle parameter of the rotating angle point of the clamping jaw (13), if the simulation light source (12) irradiates the exterior rearview mirror (21) or the interior rearview mirror (22), the step g is carried out, otherwise, the step h is carried out;
g. when the simulation light source (12) irradiates the rear mirror (21) outside the vehicle, the controller (5) calculates the sum of all the zone boundaries of the simulation light source (12) which can irradiate the backward photoelectric receiving plate (33) in a plurality of rotating corner points of a corresponding certain moving point position, marks the sum of the zone boundaries as a rear mirror viewing zone outside the vehicle, and then marks one of the plurality of rear mirror viewing zones formed by the simulation light source (12) moving to different moving point positions, which has the smallest area, as a first indirect viewing zone; when the simulated light source (12) irradiates the interior rearview mirror (22), the controller (5) calculates the sum of all the regional boundaries of the simulated light source (12) which can irradiate the backward photoelectric receiving plate (33) in a plurality of rotating corner points of a corresponding certain moving point position, marks the sum of the regional boundaries as an interior rearview mirror visual area, and then marks the smallest area in a plurality of interior rearview mirror visual areas formed by moving the simulated light source (12) to different moving point positions as a second indirect visual area; in the step g, when the clamping jaw (13) rotates to a certain rotation angular point, the exterior mirror (21) moves to the limit position from left to right and up and down respectively, or the interior mirror (22) rotates to the limit position from left to right and up and down respectively, and then the clamping jaw (13) rotates to the next rotation angular point again; then entering step i;
h. the controller (5) calculates the sum of all areas which can irradiate the forward photoelectric receiving plate (31) or the sum of all areas which can irradiate the lateral photoelectric receiving plate (32) in a plurality of rotating corner points of a corresponding certain moving point position of the simulation light source (12) to be respectively marked as a forward visual area or a lateral visual area, the smallest area in the forward visual area of the plurality of moving point positions is marked as a first direct visual area, the smallest area in the lateral visual area of the plurality of moving point positions is marked as a second direct visual area, and the sum of the first direct visual area and the second direct visual area is marked as a direct visual area; recording an area where the front photoelectric receiving plate (31) does not receive light all the time when the analog light source (12) irradiates the A column as a binocular blind area of the A column; recording an area where the lateral photoelectric receiving plate (32) does not receive light all the time when the simulated light source (12) irradiates the B column as a B column binocular blind area; then entering step i;
i. the controller (5) leads the human eye ellipse three-dimensional model and the position parameters in the three-dimensional modeling software into VR software to form a standard eye ellipse range; then entering step j;
the manual checking step comprises the following steps which are carried out in sequence;
j. a tester wears VR glasses (61) and sits on a test seat (62), the eyes horizontally see the front, a camera (63) reads the position of the VR glasses (61), a controller (5) calculates the positions of the eyes of the tester according to the positions of the VR glasses (61), when the positions of the eyes of the tester are within the standard eye ellipse range, step k is carried out, otherwise, the sitting posture is prompted to be adjusted again, and step j is repeated;
k. a tester moves the eyes back and forth and left and right in a VR space and horizontally rotates the head, observes a calibration object at a specific position outside the VR three-dimensional model by using the VR three-dimensional model, and enters the step m if the calibration object can be seen; if the calibration object can not be seen, entering the step n; in the step k, if the positions of the human eyes of the testers exceed the standard eye ellipse range during observation, prompting that the human eye range exceeds, and performing the step k again;
m. the test is finished;
n. the controller (5) adds the eye position of the test person at that time to a plurality of movement points, and then re-performs steps c to k.
2. The automobile visual field checking method according to claim 1, wherein: in the step i, the controller (5) marks the boundary lines of the first indirect visual area and the second indirect visual area obtained in the step g in a VR three-dimensional model, and marks the boundary line of the direct visual area obtained in the step h and the boundary lines of the A column binocular dead zone and the B column binocular dead zone in the VR three-dimensional model to form a standard boundary line;
in the step k, the tester marks out virtual boundary lines of a direct visual area, an A column binocular blind area, a B column binocular blind area, a first indirect visual area and a second indirect visual area in the VR three-dimensional model by using a VR handle or a controller; the controller (5) compares the virtual boundary lines with the stored standard boundary lines, and if the virtual boundary lines are located outside the standard boundary lines, the step m is carried out; if the virtual boundary line is within a certain range of the standard boundary line, step n is entered.
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