CN114964073B - Wheel coplanarity testing method and system based on two-wheeled vehicle and storage medium - Google Patents
Wheel coplanarity testing method and system based on two-wheeled vehicle and storage medium Download PDFInfo
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- CN114964073B CN114964073B CN202210843003.6A CN202210843003A CN114964073B CN 114964073 B CN114964073 B CN 114964073B CN 202210843003 A CN202210843003 A CN 202210843003A CN 114964073 B CN114964073 B CN 114964073B
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Abstract
The invention relates to the technical field of two-wheeled vehicles, in particular to a method and a system for testing the same degree of flatness of wheels based on the two-wheeled vehicles and a readable storage medium, wherein a front wheel is connected with a rear wheel through a frame, and the method comprises the following steps: forming a reference line on the reference plate; adjusting the two-wheeled vehicle to be vertical to the reference plate, wherein the vehicle frame projection line of the vehicle frame on the reference plate is superposed with the reference line; adjusting the front wheel to be parallel to the frame, and forming a front wheel projection line and a rear wheel projection line on the reference plate by the front wheel and the rear wheel; the matching degree information of the front wheel projection line and the reference line and the matching degree information of the rear wheel projection line and the reference line are obtained, the same-plane degree condition of the front wheel and the rear wheel is judged according to the matching degree information, the front wheel projection line and the rear wheel projection line are compared with the reference line of the frame projection of the two-wheel vehicle on the reference plate, and therefore whether the same-plane degree of the wheels of the two-wheel vehicle is qualified or not is judged, and the problem that whether the wheels are qualified or not cannot be checked in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of two-wheeled vehicles, in particular to a method and a system for testing the wheel coplanarity based on a two-wheeled vehicle and a computer readable storage medium.
Background
Present two wheeler degree of automation is lower, leans on manual assembly usually, and often the front and back wheel is hardly guaranteed in same plane, leads to vehicle tyre wearing and tearing serious, greatly reduced vehicle life and travelling comfort, also lead to vehicle braking drift phenomenon simultaneously, has the potential safety hazard, but does not have the standard at present to the test of two wheeler front and back wheel coplanar degree, has the problem whether can't inspect the wheel qualified.
Disclosure of Invention
In order to solve the problem of low text generation efficiency in the prior art, the invention provides a method, a system and a computer readable storage medium.
The invention provides a wheel coplanarity testing method based on a two-wheeled vehicle, the two-wheeled vehicle comprises a front wheel, a rear wheel and a frame, the front wheel and the rear wheel are connected through the frame, and the method comprises the following steps:
forming a reference line on the reference plate;
adjusting the two-wheeled vehicle to be vertical to the reference plate, wherein the vehicle frame projection line of the vehicle frame on the reference plate is superposed with the reference line;
adjusting the front wheel to be parallel to the frame, and forming a front wheel projection line and a rear wheel projection line on the reference plate by the front wheel and the rear wheel;
acquiring matching degree information of the front wheel projection line and the reference line and the rear wheel projection line and the reference line, and judging the same-plane degree condition of the front wheel and the rear wheel according to the matching degree information;
the method comprises the following steps of obtaining matching degree information of a front wheel projection line and a reference line and matching degree information of a rear wheel projection line and the reference line, and judging the same surface degree condition of the front wheel and the rear wheel according to the matching degree information: judging whether the rear wheel is parallel to the frame;
if yes, obtaining the distance between the front wheel projection line and the rear wheel projection line, recording the distance between the front wheel projection line and the rear wheel projection line as a first distance, analyzing the first distance and preset first matching degree information, and judging the same surface degree condition of the front wheel and the rear wheel according to the first matching degree information, wherein the preset first matching degree information comprises a first distance threshold value; if not, acquiring the distance between the front wheel projection line and the rear wheel projection line under the preset condition and the included angle between the front wheel projection line and the rear wheel projection line, recording the distance between the front wheel projection line and the rear wheel projection line under the preset condition as a second distance, recording the included angle between the front wheel projection line and the rear wheel projection line as a first included angle, analyzing the information according to the first included angle and the second distance and preset second matching degree, judging the condition of the same surface degree of the front wheel and the rear wheel according to the second matching degree information, and presetting the second matching degree information to comprise a first included angle threshold value and a second distance threshold value.
Preferably, the reference plate is horizontally arranged with the ground.
Preferably, the distance between the front wheel projection line and the rear wheel projection line under the preset condition is the distance between the midpoint of the rear wheel projection line and the front wheel projection line.
Preferably, the first distance and the preset first matching degree information are analyzed, and the same-surface degree condition of the front wheel and the rear wheel is judged according to the preset first matching degree information, wherein the preset first matching degree information comprises a first distance threshold value, and the method specifically comprises the following steps:
if the first distance is smaller than or equal to the first distance threshold value, judging that the same-plane degree condition of the current front wheel and the current rear wheel is qualified;
and if the first distance is greater than the first distance threshold value, judging that the same-plane degree condition of the front wheel and the rear wheel is unqualified currently.
Preferably, the analysis is performed according to the first included angle and the second distance and the preset second matching degree information, the same-surface degree condition of the front wheel and the rear wheel is judged according to the preset second matching degree information, the preset second matching degree information includes a first included angle threshold value and a second distance threshold value, and the method specifically includes the following steps:
if the first included angle is smaller than or equal to a first included angle threshold value and the second distance is smaller than or equal to a second distance threshold value, judging that the co-planarity condition of the front wheel and the rear wheel is qualified;
and if the first included angle is larger than the first included angle threshold value or the second distance is larger than the second distance threshold value, judging that the co-planarity condition of the front wheel and the rear wheel is unqualified currently.
Preferably, obtaining the distance and the included angle between the front wheel projection line and the rear wheel projection line is achieved by a preset device, and the preset device comprises a machine vision camera and a displacement sensor.
Preferably, the machine vision camera is one of a CCD camera or a CMOS camera.
The invention also provides a system for testing the wheel coplanarity based on a two-wheeled vehicle, which is used for realizing the method for testing the wheel coplanarity based on the two-wheeled vehicle, and comprises the following modules:
an acquisition module: a reference line for forming on a reference plate;
a processing module: the front wheel and the rear wheel form a front wheel projection line and a rear wheel projection line on the reference plate;
a judging module: and acquiring matching degree information of the front wheel projection line and the reference line and the rear wheel projection line and the reference line, and judging the same surface degree condition of the front wheel and the rear wheel according to the matching degree information.
The present invention further provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements any one of the above-mentioned methods for testing co-planarity of wheels of a two-wheeled vehicle.
Compared with the prior art, the wheel coplanarity testing method, the wheel coplanarity testing system and the computer-readable storage medium based on the two-wheeled vehicle have the following advantages:
1. the invention relates to a wheel coplanarity testing method based on a two-wheeled vehicle, which comprises the steps of forming a reference line on a reference plate, vertically projecting the two-wheeled vehicle on the reference plate, adjusting the position of a front wheel to enable the front wheel to be parallel to a frame, and acquiring matching degree information of a front wheel projection line and the reference line as well as a rear wheel projection line and the reference line, wherein the front wheel projection line and the rear wheel projection line of the front wheel and the rear wheel projected on the reference plate are compared with the reference line of the frame of the two-wheeled vehicle projected on the reference plate, and the situation of the coplanarity of the front wheel and the rear wheel can be further judged according to the matching degree information, so that whether the wheel coplanarity of the current two-wheeled vehicle is judged, the problem that whether the wheels are qualified cannot be detected in the prior art is solved, and the method has strong practicability.
2. The reference plate and the ground are horizontally arranged, so that when the two-wheel vehicle is projected on the reference plate, the length of the front wheel projection line and the length of the rear wheel projection line are respectively consistent with the diameter of the front wheel and the diameter of the rear wheel, the error is small, the process flow can be accelerated, the efficiency is improved, and the practicability is high.
3. Judging whether a rear wheel is parallel to a frame or not, if so, acquiring the distance between a front wheel projection line and a rear wheel projection line, namely a first distance, analyzing the first distance and preset first matching degree information, judging the same-plane degree condition of the front wheel and the rear wheel according to the first matching degree information, and presetting the first matching degree information to comprise a first distance threshold value; if not, the distance between the front wheel projection line and the rear wheel projection line under the preset condition and the included angle between the front wheel projection line and the rear wheel projection line, namely the second distance and the first included angle, are obtained, analysis is carried out according to the first included angle, the second distance and the second matching degree information, the same-plane degree condition of the front wheel and the rear wheel is judged according to the second matching degree information, the preset second matching degree information comprises a first included angle threshold value and a second distance threshold value, the step can realize that the same-plane degree condition of the front wheel and the rear wheel is judged by adopting different judgment standards according to different conditions, and the method has strong practicability.
4. According to the distance between the front wheel projection line and the rear wheel projection line under the preset condition, the distance between the middle point of the rear wheel projection line and the front wheel projection line is the distance between the middle point of the rear wheel projection line, namely the point of the circle center of the rear wheel projected on the reference plate, the distance between the middle point of the rear wheel projection line and the front wheel projection line is the distance between the vertical surface where the rear wheel projection line is located and the vertical surface where the front wheel projection line is located, and the distance between the front wheel projection line and the rear wheel projection line is more accurately represented by the data, so that the generation of subsequent errors is avoided, and the practicability is high.
5. The method comprises the steps that when the front wheel and the rear wheel are parallel to the frame, the coplanarity of the front wheel and the rear wheel is judged, the first distance is compared with a first distance threshold, when the first distance is smaller than or equal to the first distance threshold, the coplanarity condition of the front wheel and the rear wheel can be judged to be qualified, if the first distance is larger than the first distance threshold, the coplanarity condition of the front wheel and the rear wheel can be judged to be unqualified, and whether the coplanarity condition is qualified or not can be clearly judged by setting the corresponding distance threshold to be compared with the distance threshold, so that the efficiency is improved, and the method has high practicability.
6. The method comprises the steps of judging the coplanarity condition of the front wheel and the rear wheel when the front wheel is parallel to the frame and the rear wheel is not parallel to the frame, comparing a first included angle and a second distance with a first included angle threshold value and a second distance threshold value respectively, judging the coplanarity condition of the front wheel and the rear wheel to be qualified when the first included angle is smaller than or equal to the first included angle threshold value and the second distance is smaller than or equal to the second distance threshold value, judging the coplanarity condition of the front wheel and the rear wheel to be unqualified when the first included angle is larger than the first included angle threshold value or the second distance is larger than the second included angle threshold value, and judging the coplanarity condition of the wheels of the two-wheeled vehicle by setting specific threshold conditions, so that the method has convenience and practicability.
7. The distance and the included angle between the front wheel projection line and the rear wheel projection line are acquired by the preset equipment, the preset equipment comprises a machine vision camera and a displacement sensor, the machine vision camera is used for measuring the first included angle, the displacement sensor is used for measuring the first distance and the second distance, the machine vision camera aims to transmit an image projected to the sensor through a lens to equipment capable of storing, analyzing or displaying, and the displacement sensor is simple in structure, good in stability, long in service life, high in precision and high in practicability.
8. The invention also provides a system for testing the wheel coplanarity based on the two-wheeled vehicle and a computer readable storage medium, which have the same beneficial effects as the method for testing the wheel coplanarity based on the two-wheeled vehicle, and are not repeated herein.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.
Fig. 1 is a flowchart of steps of a wheel coplanarity testing method based on a two-wheeled vehicle according to a first embodiment of the present invention.
Fig. 2 is a flowchart of a step S4 of a method for testing the co-planarity of wheels of a two-wheeled vehicle according to a first embodiment of the present invention.
Fig. 3 is a flowchart of step S43 of the wheel coplanarity testing method based on a two-wheeled vehicle according to the first embodiment of the present invention.
Fig. 4 is a flowchart of step S44 of the wheel alignment test method for a two-wheeled vehicle according to the first embodiment of the present invention.
Fig. 5 is a first exemplary diagram of a wheel coplanarity testing method based on a two-wheeled vehicle according to a first embodiment of the present invention.
Fig. 6 is a second exemplary diagram of a wheel coplanarity testing method based on a two-wheeled vehicle according to the first embodiment of the present invention.
Fig. 7 is a block diagram of a system for testing the co-planarity of wheels of a two-wheeled vehicle according to a second embodiment of the present invention.
The attached drawings indicate the following:
1. a system for testing the same-plane degree of wheels based on a two-wheeled vehicle;
10. an acquisition module; 20. a processing module; 30. a judgment module;
40. a front wheel; 50. a frame; 60. a rear wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The terms "vertical," "horizontal," "left," "right," "up," "down," "left up," "right up," "left down," "right down," and the like as used herein are for illustrative purposes only.
Referring to fig. 1 and 5, a first embodiment of the present invention provides a method for testing co-planarity of front and rear wheels, the two-wheeled vehicle includes a front wheel 40, a rear wheel 60 and a frame 50, the front wheel 40 and the rear wheel 60 are connected by the frame 50, comprising the steps of:
s1: forming a reference line on the reference plate;
s2: adjusting the two-wheeled vehicle to be vertical to the reference plate, wherein the vehicle frame projection line of the vehicle frame on the reference plate is superposed with the reference line;
s3: adjusting the front wheel to be parallel to the frame, and forming a front wheel projection line and a rear wheel projection line on the reference plate by the front wheel and the rear wheel;
s4: and acquiring matching degree information of the front wheel projection line and the reference line and the rear wheel projection line and the reference line, and judging the same surface degree condition of the front wheel and the rear wheel according to the matching degree information.
It can be understood that, in the steps of the present invention, a reference line is first formed on a reference plate, the two-wheeled vehicle is vertically projected on the reference plate, and the position of the front wheel is adjusted, so that the front wheel is parallel to the frame, an image of the two-wheeled vehicle projected on the reference plate is obtained, and the matching degree information of the front wheel projection line L1 (L1 shown in fig. 5) and the reference line L3 (L3 shown in fig. 5) and the rear wheel projection line L2 (L2 shown in fig. 5) and the reference line is analyzed, wherein the front wheel projection line L1 and the rear wheel projection line L2 of the front wheel and the rear wheel projected on the reference plate are compared with the reference line L3 of the frame of the two-wheeled vehicle projected on the reference plate, and further the condition of the co-planarity of the front wheel and the rear wheel can be judged according to the matching degree information, so as to judge whether the co-planarity of the wheels of the current two-wheeled vehicle is qualified, and solve the problem that whether the wheels can not be checked.
As an alternative embodiment, the reference plate is arranged horizontally to the ground.
The reference plate and the ground are horizontally arranged, so that when the two-wheeled vehicle is projected on the reference plate, the length of the front wheel projection line and the length of the rear wheel projection line are respectively consistent with the diameter of the front wheel and the diameter of the rear wheel, the error is small, the process flow can be accelerated, the efficiency is improved, and the practicability is high.
Referring to fig. 2, 5 and 6, step S4 specifically includes the following steps:
s41: judging whether the rear wheel is parallel to the frame;
s42: if so, acquiring the distance between the front wheel projection line and the rear wheel projection line, recording the distance between the front wheel projection line and the rear wheel projection line as a first distance, analyzing the first distance and preset first matching degree information, and judging the same-plane degree condition of the front wheel and the rear wheel according to the first matching degree information, wherein the preset first matching degree information comprises a first distance threshold value;
s43: if not, the distance between the front wheel projection line and the rear wheel projection line under the preset condition and the included angle between the front wheel projection line and the rear wheel projection line are obtained, the distance between the current front wheel projection line and the rear wheel projection line under the preset condition is recorded as a second distance, the included angle between the front wheel projection line and the rear wheel projection line is a first included angle, the analysis is carried out according to the first included angle and the second distance and preset second matching degree information, the same-plane degree condition of the front wheel and the rear wheel is judged according to the second matching degree information, and the preset second matching degree information comprises a first included angle threshold value and a second distance threshold value.
It can be understood that, in the steps of the present invention, a reference plate image is obtained first, wherein a front wheel makes the front wheel parallel to a frame, whether a rear wheel is parallel to the frame is judged, if yes, a distance between a projection line of the front wheel and a projection line of the rear wheel is obtained, i.e. a first distance h (shown as h in fig. 5), the first distance h and preset first matching degree information are analyzed, and the same face degree condition of the front wheel and the rear wheel is judged according to the first matching degree information, and the preset first matching degree information includes a first distance threshold; if not, acquiring the distance between the front wheel projection line and the rear wheel projection line under the preset condition and the included angle between the front wheel projection line and the rear wheel projection line, namely a second distance (shown as d in fig. 6) and a first included angle (shown as an angle alpha in fig. 6), analyzing the information according to the first included angle alpha and the second distance d and the second matching degree, judging the co-facial degree condition of the front wheel and the rear wheel according to the second matching degree information, and presetting that the second matching degree information comprises a first included angle threshold value and a second distance threshold value.
As an alternative embodiment, the distance between the front wheel projection line and the rear wheel projection line in the preset case is the distance between the midpoint of the rear wheel projection line and the front wheel projection line.
The distance between the front wheel projection line and the rear wheel projection line under the preset condition is the distance between the middle point of the rear wheel projection line and the front wheel projection line, the middle point of the rear wheel projection line is the point of the circle center of the rear wheel projected on the reference plate, the distance between the middle point of the rear wheel projection line and the front wheel projection line is the distance between the vertical surface where the rear wheel projection line is located and the vertical surface where the front wheel projection line is located, and the data more accurately represents the distance between the front wheel projection line and the rear wheel projection line, so that the generation of subsequent errors is avoided, and the method has high practicability.
Referring to fig. 3 and 5, step S42 specifically includes the following steps:
s421: if the first distance is smaller than or equal to the first distance threshold value, judging that the same-plane degree condition of the current front wheel and the current rear wheel is qualified;
s422: and if the first distance is greater than the first distance threshold value, judging that the same-surface degree condition of the current front wheel and the current rear wheel is unqualified.
It can be understood that in the steps of the present invention, when the front wheel and the rear wheel are both parallel to the frame, the same surface degree of the front wheel and the rear wheel is judged, the first distance is compared with the first distance threshold, when the first distance is smaller than or equal to the first distance threshold, the same surface degree condition of the front wheel and the rear wheel can be judged as qualified, if the first distance is larger than the first distance threshold, the same surface degree condition of the front wheel and the rear wheel can be judged as unqualified, and whether the same surface degree condition is qualified can be clearly judged by setting the corresponding distance threshold and comparing the distance threshold, so that the efficiency is improved, and the present invention has strong practicability.
It should be noted that, in the embodiment of the present invention, the first distance threshold is not specifically limited, and a value of the first distance threshold in the embodiment of the present invention is 2mm. Namely, when the first distance is less than or equal to 2mm, the same-surface degree condition of the front wheel and the rear wheel is judged to be qualified, and when the first distance is more than 2mm, the same-surface degree condition of the front wheel and the rear wheel is judged to be unqualified.
Referring to fig. 4 and 6, step S43 specifically includes the following steps:
s431: if the first included angle is smaller than or equal to a first included angle threshold value and the second distance is smaller than or equal to a second distance threshold value, judging that the same-surface degree condition of the front wheel and the rear wheel is qualified;
s432: and if the first included angle is larger than the first included angle threshold value or the second distance is larger than the second distance threshold value, judging that the same-surface degree condition of the front wheel and the rear wheel is unqualified currently.
It can be understood that, in the steps of the present invention, when the front wheel is parallel to the frame and the rear wheel is not parallel to the frame, the same-plane-degree condition of the front wheel and the rear wheel is determined, then the first included angle α and the second distance d are respectively compared with the first included angle threshold and the second distance threshold, when the first included angle α is less than or equal to the first included angle threshold and the second distance d is less than or equal to the second distance threshold, the same-plane-degree condition of the front wheel and the rear wheel can be determined to be qualified, if the first included angle α is greater than the first included angle threshold or the second distance d is greater than the second included angle threshold, the same-plane-degree condition of the front wheel and the rear wheel can be determined to be unqualified, and the same-plane-degree condition of the wheels of the two-wheel vehicle is determined by setting a specific threshold condition, which is convenient and practical.
It should be noted that, in the embodiment of the present invention, the first included angle threshold and the second distance threshold are not specifically limited, in the embodiment of the present invention, the value of the first included angle threshold is 6 °, and the value of the second distance threshold is 10mm, that is, when the first included angle α is less than or equal to 6 ° and the second distance d is less than or equal to 10mm, it may be determined that the co-planarity condition of the current front wheel and the current rear wheel is qualified, and if the first included angle α is greater than 6 ° or the second distance d is greater than 10mm, it may be determined that the co-planarity condition of the current front wheel and the current rear wheel is unqualified.
Further, under the condition that the coplanarity condition of the front wheel and the rear wheel is qualified, if the first included angle alpha is smaller than 3 degrees and the second distance d is smaller than 5mm, the coplanarity condition of the front wheel and the rear wheel is excellent currently.
As an optional implementation, the obtaining of the distance and the included angle between the front wheel projection line and the rear wheel projection line is implemented by a preset device, and the preset device includes a machine vision camera and a displacement sensor.
It can be understood that the machine vision camera is used for measuring the first included angle, the displacement sensor is used for measuring the first distance and the second distance, wherein the purpose of the machine vision camera is to transmit an image projected to the sensor through the lens to a device capable of being stored, analyzed or displayed, and the displacement sensor has the advantages of simple structure, good stability, long service life, higher precision and stronger practicability.
As an alternative embodiment, the machine vision camera is one of a CCD camera or a CMOS camera.
Referring to fig. 7, a second embodiment of the present invention provides a system 1 for testing co-planarity of wheels of a two-wheeled vehicle, for implementing any one of the above methods for testing co-planarity of wheels of a two-wheeled vehicle, including the following modules:
the acquisition module 10: a reference line for forming on a reference plate;
the processing module 20: the front wheel and the rear wheel form a front wheel projection line and a rear wheel projection line on the reference plate;
the judging module 30: and matching degree information of the front wheel projection line and the reference line and matching degree information of the rear wheel projection line and the reference line are obtained, and the same-plane degree condition of the front wheel and the rear wheel is judged according to the matching degree information.
It can be understood that the module of the system 1 for testing co-planarity of wheels of a two-wheeled vehicle needs to use the method for testing co-planarity of wheels of a two-wheeled vehicle provided in the first embodiment when operating, and therefore, it is within the scope of the present invention to integrate or configure different hardware to generate the function similar to the effect achieved by the present invention.
A third embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements any one of the above-mentioned methods for testing co-planarity of wheels of a two-wheeled vehicle.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood, however, that determining B from a does not mean determining B from a alone, but may also be determined from a and/or other information.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are exemplary embodiments in nature, and that the acts and modules involved are not necessarily essential to the invention.
In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not imply an inevitable order of execution, and the execution order of the processes should be determined by their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
The flowchart and block diagrams in the figures of the present application illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Compared with the prior art, the wheel coplanarity testing method, the wheel coplanarity testing system and the computer-readable storage medium based on the two-wheeled vehicle have the following advantages:
1. the invention relates to a wheel coplanarity testing method based on a two-wheeled vehicle, which comprises the steps of forming a reference line on a reference plate, vertically projecting the two-wheeled vehicle on the reference plate, adjusting the position of a front wheel to enable the front wheel to be parallel to a frame, and acquiring matching degree information of a front wheel projection line and the reference line as well as a rear wheel projection line and the reference line, wherein the front wheel projection line and the rear wheel projection line of the front wheel and the rear wheel projected on the reference plate are compared with the reference line of the frame of the two-wheeled vehicle projected on the reference plate, and the situation of the coplanarity of the front wheel and the rear wheel can be further judged according to the matching degree information, so that whether the wheel coplanarity of the current two-wheeled vehicle is judged, the problem that whether the wheels are qualified cannot be detected in the prior art is solved, and the method has strong practicability.
2. The reference plate and the ground are horizontally arranged, so that when the two-wheel vehicle is projected on the reference plate, the length of the front wheel projection line and the length of the rear wheel projection line are respectively consistent with the diameter of the front wheel and the diameter of the rear wheel, the error is small, the process flow can be accelerated, the efficiency is improved, and the practicability is high.
3. The method comprises the steps that whether a rear wheel is parallel to a frame or not is judged, if yes, the distance between a projection line of the front wheel and a projection line of the rear wheel is obtained and is a first distance, the first distance and preset first matching degree information are analyzed, the same-plane degree condition of the front wheel and the rear wheel is judged according to the first matching degree information, and the preset first matching degree information comprises a first distance threshold value; if not, the distance between the front wheel projection line and the rear wheel projection line under the preset condition and the included angle between the front wheel projection line and the rear wheel projection line, namely the second distance and the first included angle, are obtained, analysis is carried out according to the first included angle, the second distance and the second matching degree information, the same-plane degree condition of the front wheel and the rear wheel is judged according to the second matching degree information, the preset second matching degree information comprises a first included angle threshold value and a second distance threshold value, the step can realize that the same-plane degree condition of the front wheel and the rear wheel is judged by adopting different judgment standards according to different conditions, and the method has strong practicability.
4. According to the distance between the front wheel projection line and the rear wheel projection line under the preset condition, the distance between the middle point of the rear wheel projection line and the front wheel projection line is the distance between the middle point of the rear wheel projection line, namely the point of the circle center of the rear wheel projected on the reference plate, the distance between the middle point of the rear wheel projection line and the front wheel projection line is the distance between the vertical surface where the rear wheel projection line is located and the vertical surface where the front wheel projection line is located, and the distance between the front wheel projection line and the rear wheel projection line is more accurately represented by the data, so that the generation of subsequent errors is avoided, and the practicability is high.
5. The method comprises the steps of judging the coplanarity of the front wheel and the rear wheel when the front wheel and the rear wheel are parallel to the frame, comparing the first distance with a first distance threshold, judging the coplanarity condition of the front wheel and the rear wheel to be qualified when the first distance is smaller than or equal to the first distance threshold, judging the coplanarity condition of the front wheel and the rear wheel to be unqualified when the first distance is larger than the first distance threshold, clearly judging whether the coplanarity condition is qualified or not by setting the corresponding distance threshold and comparing the distance threshold, improving the efficiency and having strong practicability.
6. The method comprises the steps of judging the coplanarity condition of the front wheel and the rear wheel when the front wheel is parallel to the frame and the rear wheel is not parallel to the frame, comparing a first included angle and a second distance with a first included angle threshold value and a second distance threshold value respectively, judging the coplanarity condition of the front wheel and the rear wheel to be qualified when the first included angle is smaller than or equal to the first included angle threshold value and the second distance is smaller than or equal to the second distance threshold value, judging the coplanarity condition of the front wheel and the rear wheel to be unqualified when the first included angle is larger than the first included angle threshold value or the second distance is larger than the second included angle threshold value, and judging the coplanarity condition of the wheels of the two-wheeled vehicle by setting specific threshold conditions, so that the method has convenience and practicability.
7. The distance and the included angle between the front wheel projection line and the rear wheel projection line are acquired by the preset equipment, the preset equipment comprises a machine vision camera and a displacement sensor, the machine vision camera is used for measuring the first included angle, the displacement sensor is used for measuring the first distance and the second distance, the machine vision camera aims to transmit an image projected to the sensor through a lens to equipment capable of storing, analyzing or displaying, and the displacement sensor is simple in structure, good in stability, long in service life, high in precision and high in practicability.
8. The invention also provides a system for testing the wheel coplanarity based on the two-wheeled vehicle and a computer readable storage medium, which have the same beneficial effects as the method for testing the wheel coplanarity based on the two-wheeled vehicle, and are not repeated herein.
The method, the system and the computer-readable storage medium for testing the wheel coplanarity based on the two-wheeled vehicle disclosed by the embodiment of the invention are described in detail, a specific embodiment is applied in the method to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for the persons skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present description should not be construed as a limitation to the present invention, and any modification, equivalent replacement, and improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a wheel coplanarity test method based on two wheeler, two wheeler includes front wheel, rear wheel and frame, the front wheel with the rear wheel passes through frame connection, its characterized in that: the method comprises the following steps:
forming a reference line on the reference plate;
adjusting the two-wheeled vehicle to be vertical to the reference plate, wherein the vehicle frame projection line of the vehicle frame on the reference plate is superposed with the reference line;
adjusting the front wheel to be parallel to the frame, and forming a front wheel projection line and a rear wheel projection line on the reference plate by the front wheel and the rear wheel;
matching degree information of the front wheel projection line and the reference line and matching degree information of the rear wheel projection line and the reference line are obtained, and the same-plane degree condition of the front wheel and the rear wheel is judged according to the matching degree information;
the method comprises the following steps of obtaining matching degree information of a front wheel projection line and a reference line and matching degree information of a rear wheel projection line and the reference line, and judging the same surface degree condition of the front wheel and the rear wheel according to the matching degree information: judging whether the rear wheel is parallel to the frame;
if yes, obtaining the distance between the front wheel projection line and the rear wheel projection line, recording the distance between the front wheel projection line and the rear wheel projection line as a first distance, analyzing the first distance and preset first matching degree information, and judging the same-plane degree condition of the front wheel and the rear wheel according to the first matching degree information, wherein the preset first matching degree information comprises a first distance threshold value; if not, acquiring the distance between the front wheel projection line and the rear wheel projection line under the preset condition and the included angle between the front wheel projection line and the rear wheel projection line, recording the distance between the front wheel projection line and the rear wheel projection line under the preset condition as a second distance, recording the included angle between the front wheel projection line and the rear wheel projection line as a first included angle, analyzing the information according to the first included angle and the second distance and preset second matching degree, judging the condition of the same surface degree of the front wheel and the rear wheel according to the second matching degree information, and presetting the second matching degree information to comprise a first included angle threshold value and a second distance threshold value.
2. The wheel coplanarity testing method based on the two-wheeled vehicle as claimed in claim 1, characterized in that: the reference plate is horizontally arranged with the ground.
3. The wheel coplanarity testing method based on two-wheeled vehicles according to claim 1, characterized in that: and the distance between the projection line of the front wheel and the projection line of the rear wheel under the preset condition is the distance between the midpoint of the projection line of the rear wheel and the projection line of the front wheel.
4. The wheel coplanarity testing method based on a two-wheeled vehicle as claimed in claim 1, characterized in that: analyzing the first distance and preset first matching degree information, and judging the same-plane degree condition of the front wheel and the rear wheel according to the preset first matching degree information, wherein the preset first matching degree information comprises a first distance threshold value, and the method specifically comprises the following steps:
if the first distance is smaller than or equal to the first distance threshold value, judging that the same-plane degree condition of the current front wheel and the current rear wheel is qualified;
and if the first distance is greater than the first distance threshold value, judging that the same-plane degree condition of the front wheel and the rear wheel is unqualified currently.
5. The wheel coplanarity testing method based on a two-wheeled vehicle as claimed in claim 1, characterized in that: analyzing the preset second matching degree information according to the first included angle and the second distance, and judging the same surface degree condition of the front wheel and the rear wheel according to the preset second matching degree information, wherein the preset second matching degree information comprises a first included angle threshold value and a second distance threshold value, and the method specifically comprises the following steps:
if the first included angle is smaller than or equal to a first included angle threshold value and the second distance is smaller than or equal to a second distance threshold value, judging that the same-surface degree condition of the front wheel and the rear wheel is qualified;
and if the first included angle is larger than the first included angle threshold value or the second distance is larger than the second distance threshold value, judging that the co-planarity condition of the front wheel and the rear wheel is unqualified currently.
6. The wheel coplanarity testing method based on the two-wheeled vehicle as claimed in claim 1, characterized in that: the distance and the included angle between the front wheel projection line and the rear wheel projection line are obtained through preset equipment, and the preset equipment comprises a machine vision camera and a displacement sensor.
7. The wheel coplanarity testing method based on the two-wheeled vehicle as claimed in claim 6, characterized in that: the machine vision camera is one of a CCD camera or a CMOS camera.
8. A system for testing the co-planarity of wheels based on a two-wheeled vehicle, which is used for realizing the method for testing the co-planarity of the wheels based on the two-wheeled vehicle as claimed in any one of claims 1 to 7, and is characterized in that: the system comprises the following modules:
an acquisition module: a reference line for forming on a reference plate;
a processing module: the front wheel and the rear wheel form a front wheel projection line and a rear wheel projection line on the reference plate;
a judging module: and acquiring matching degree information of the front wheel projection line and the reference line and the rear wheel projection line and the reference line, and judging the same surface degree condition of the front wheel and the rear wheel according to the matching degree information.
9. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when executed by a processor, implements a method of testing co-planarity of wheels on a two-wheeled vehicle as claimed in any one of claims 1 to 7.
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