CN114297777A - Method for displaying finished automobile parts of VR (virtual reality) - Google Patents
Method for displaying finished automobile parts of VR (virtual reality) Download PDFInfo
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Abstract
The invention discloses a method for displaying finished automobile parts of a VR automobile, which comprises the following steps: s1, modeling the parts of the whole automobile, S2, establishing data communication connection, S3, importing the model data of the parts of the automobile, S4, sharing the data, S5 and observing and displaying the parts of the whole automobile, wherein when the method is used, an author can wear VR equipment and an active control handle, the whole parts of the automobile can be visited and displayed, a learner can conveniently and fully know the structure of the whole automobile of the automobile, the learning effect is improved, and meanwhile, the other personnel can establish network connection relation with main VR glasses through an Ethernet network, so that the data import and transmission are convenient, when the method is actually used, a plurality of personnel can conveniently and uniformly manage and learn, the method is effectively suitable for the educational and teaching environment of schools, and the learning effect of the quality of students is improved.
Description
Technical Field
The invention discloses a method for displaying parts of a whole automobile by VR, and belongs to the technical field of VR display.
Background
The virtual reality technology is a brand new practical technology developed in the 20 th century. Virtual reality technology encompasses computer, electronic information, simulation technology, the basic implementation of which is that a computer simulates a virtual environment to give a person a sense of environmental immersion. With the continuous development of social productivity and scientific technology, VR technology is increasingly in great demand in various industries. The VR technology has made great progress and gradually becomes a new scientific and technical field;
however, in the existing automobile part display work, the automobile part display is generally displayed by the process drawing and the electronic document drawing of the paper document, the content is relatively fixed, the browsing is relatively complicated, and even if a real object is displayed, the automobile part display is numerous, so that the purpose of face-to-face cannot be achieved when the real object is displayed, the use and the education and teaching work are inconvenient, and therefore the method for displaying the automobile part by the VR is provided.
Disclosure of Invention
The invention aims to solve the defects and provide a method for displaying the whole automobile parts of the VR automobile.
A VR display method for automobile parts comprises the following steps:
s1, modeling the parts of the whole automobile;
a. drawing a whole automobile model elevation map needing VR display, and making related simplified assumption and definition;
b. defining a coordinate matrix of each coordinate point on the automobile model elevation;
c. performing kinematic analysis on the system based on the geometric relationship in the automobile model elevation by using a displacement matrix method;
d. defining a stress matrix of each coordinate point;
e. analyzing respective stress conditions of the research objects at a certain moment in the system motion process, and performing dynamic analysis;
f. model linearization, namely linearizing the equation obtained in the step S1, e at the equilibrium position of the system, and ending modeling;
s2, establishing data communication connection;
a. establishing wireless communication connection between the VR glasses with the displacement sensors, the left control handle and the right control handle and the computer for drawing the automobile part model in the step S1 through the wireless transceiver module;
s3, importing automobile part model data;
a. guiding the automobile part model information drawn by the computer with the communication connection relation established in the step S2, a into the VR glasses through the wireless transceiving module;
s4, sharing data;
a. establishing wireless communication connection relations between the VR glasses with the vehicle model data information and the rest VR glasses;
b. transmitting the vehicle model data information to a plurality of VR glasses through the data transceiving function of the VR glasses to complete data sharing;
s5, observing and displaying parts of the whole vehicle;
a. the user who holds VR glasses shows the work of looking over to the whole car of car through two master control handles in a left side, right side.
b. The user who holds VR glasses selects automobile whole car spare part component and part detail through two master control handles in a left side, right side, and the convenience is observed and is looked over part detail and component.
Preferably, in step S1, a, the related assumptions and definitions include: defining: AD is a part of an automobile, S point is a spring-loaded mass center, T point is a tire center, r point is a contact point between a tire and the ground, A, M point is a connection point between a suspension and a vehicle body, B, C point is a spring damper mounting point, r point is a tire grounding point, theta is an included angle between a rod AD and the horizontal direction, and the included angle between a control arm and the positive direction of a Y axis is defined as positive in the anticlockwise direction; theta is an included angle between the rod AD and the horizontal direction, is an included angle between the axis of the tire and the vertical direction, and takes the anticlockwise direction as positive; delta is the extension and contraction amount of the spring shock absorber, d is the transverse displacement of a contact point of the tire and the ground, alpha is an included angle between a rod MD and the vertical direction, gamma is an included angle between a rod AM and an AD, z is sprung mass displacement, and z is unsprung mass displacement.
Preferably, the directions are all positive in the upward direction; is the component of unsprung mass acceleration in the Y direction; is the component of the unsprung mass acceleration in the Z direction; z is the input displacement of the road surface, and the directions are all positive; the rod length AM is L, AD is L, and MD is L, where L varies with the control arm pivot angle θ, and the length of the rod at the equilibrium position is L, the amount of extension and retraction δ of the spring damper is L-L.
Preferably, in step S1, b, let X, X be the coordinate matrix of each point, subscript "0" denote the initial coordinates of the point, and let the coordinates of J point be expressed as: j ═ J, J and J denote the coordinates of each point in the Y and Z directions, and replacing J with coordinate points a, B, C, D, M, T in the automobile model elevation, then:
X＝[B,C,T,D],X＝[A,D,M],X＝[B,C,D,M]
X＝[B,C,T,D],X＝[A,D,M],X＝[B,C,D,M]。
preferably, in step S2, the left control handle and the right control handle function mainly positions the viewing path in advance, the selection key of the left control handle is used for controlling and changing the angle of the model for viewing the automobile integral part, and the trigger key of the left handle simulator is used for switching the viewing angle viewing position.
Preferably, the selection key of the right-hand control handle is used for controlling the speed of observing the assembly process of the whole automobile parts, and the trigger key of the right-hand main control handle is used for observing the internal attributes of the whole automobile part model.
Preferably, the selection key of the right-hand main control handle is used for controlling the speed of observing the assembly process of the whole automobile parts, and the trigger key of the right-hand main control handle is used for observing the internal attributes of the whole automobile part model.
Preferably, in step S4, the wireless communication connection relationship in step a is an ethernet network communication connection.
Preferably, in step S5, the vehicle parts in the vehicle in step S b include, but are not limited to, a main body support, a power system, a transmission mechanism, a chassis mechanism, a control system, a circuit connection system, a vehicle hub and vehicle caliper system, a suspension system, an air intake system, an exhaust system, a brake system, a steering system, an ignition mechanism, a fuel mechanism, a cooling system, a lubrication system, and an electrical instrument system.
Preferably, the automobile parts in step S5, b include, but are not limited to, an engine, a transmission shaft, a transmission case, a battery, a chassis, a frame, a wheel hub, a bumper, a door, a fender, a windshield, a pillar, a seat, a console, an engine cover, a trunk lid, a sunroof, a roof, a door lock, an armrest, a floor, a door sill, an airbag, a seat belt, a master cylinder, a wheel cylinder, a vacuum booster, a brake pedal assembly, a brake disc, a brake drum, a brake pad, a brake oil pipe, an ABS pump, a camshaft, an intake valve, an exhaust valve, a rocker arm, a rocker shaft, a lifter, and a push rod.
Compared with the prior art, the invention has the following beneficial effects:
according to the method for displaying the whole automobile parts by the VR, when the method is used, an author can wear the VR device and the active control handle, so that the whole automobile parts can be visited and displayed, a learner can conveniently and fully know the whole automobile structure of the automobile, and the learning effect is improved;
meanwhile, the other people can establish a network connection relationship with the main VR glasses through the Ethernet, so that data can be conveniently imported and transmitted, when the glasses are actually used, a plurality of people can conveniently and uniformly manage and learn, the glasses are effectively suitable for the education and teaching environment of schools, the learning effect of the learning quality of students is improved, the displayed automobiles (all parts of the automobiles) are controlled to be amplified or reduced through the left and right control handles, meanwhile, the automobile parts can be selected, the selected automobile parts can be independently extracted, the parts can be switched to different angles to be checked through the operating rod, and the glasses have a good education and teaching effect;
through the holistic spare part's of car technical mode of VR show, can select corresponding position according to the demand of self and look up, save the loaded down with trivial details link of middle data of turning over, the data change replacement of part is convenient, can look over the effect of the different parts of same position installation, traditional material object demonstration flow has been replaced, reduce the waste of paper data and reduce the auto-parts that the test of auto-factory, maintenance and training stupid all need, improve the live time and the life of every accessory.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A VR display method for automobile parts comprises the following steps:
s1, modeling the parts of the whole automobile;
a. drawing a whole automobile model elevation map needing VR display, and making related simplified assumption and definition;
b. defining a coordinate matrix of each coordinate point on the automobile model elevation;
c. performing kinematic analysis on the system based on the geometric relationship in the automobile model elevation by using a displacement matrix method;
d. defining a stress matrix of each coordinate point;
e. analyzing respective stress conditions of the research objects at a certain moment in the system motion process, and performing dynamic analysis;
f. model linearization, namely linearizing the equation obtained in the step S1, e at the equilibrium position of the system, and ending modeling;
s2, establishing data communication connection;
a. establishing wireless communication connection between the VR glasses with the displacement sensors, the left control handle and the right control handle and the computer for drawing the automobile part model in the step S1 through the wireless transceiver module;
s3, importing automobile part model data;
a. guiding the automobile part model information drawn by the computer with the communication connection relation established in the step S2, a into the VR glasses through the wireless transceiving module;
s4, sharing data;
a. establishing wireless communication connection relations between the VR glasses with the vehicle model data information and the rest VR glasses;
b. transmitting the vehicle model data information to a plurality of VR glasses through the data transceiving function of the VR glasses to complete data sharing;
s5, observing and displaying parts of the whole vehicle;
a. the user who holds VR glasses shows the work of looking over to the whole car of car through two master control handles in a left side, right side.
b. The user who holds VR glasses selects automobile whole car spare part component and part detail through two master control handles in a left side, right side, and the convenience is observed and is looked over part detail and component.
As an optimized technical solution of the present invention, in step S1, a, the related assumptions and definitions include: defining: AD is a part of an automobile, S point is a spring-loaded mass center, T point is a tire center, r point is a contact point between a tire and the ground, A, M point is a connection point between a suspension and a vehicle body, B, C point is a spring damper mounting point, r point is a tire grounding point, theta is an included angle between a rod AD and the horizontal direction, and the included angle between a control arm and the positive direction of a Y axis is defined as positive in the anticlockwise direction; theta is an included angle between the rod AD and the horizontal direction, is an included angle between the axis of the tire and the vertical direction, and takes the anticlockwise direction as positive; delta is the extension and contraction amount of the spring shock absorber, d is the transverse displacement of a contact point of the tire and the ground, alpha is an included angle between a rod MD and the vertical direction, gamma is an included angle between a rod AM and an AD, z is sprung mass displacement, and z is unsprung mass displacement.
As an optimized technical scheme of the invention, the directions are all upward; is the component of unsprung mass acceleration in the Y direction; is the component of the unsprung mass acceleration in the Z direction; z is the input displacement of the road surface, and the directions are all positive; the rod length AM is L, AD is L, and MD is L, where L varies with the control arm pivot angle θ, and the length of the rod at the equilibrium position is L, the amount of extension and retraction δ of the spring damper is L-L.
As an optimized technical solution of the present invention, in the step S1, b, X is a coordinate matrix of each point, a subscript "0" represents an initial coordinate of the point, and a coordinate of a point J is expressed as: j ═ J, J and J denote the coordinates of each point in the Y and Z directions, and replacing J with coordinate points a, B, C, D, M, T in the automobile model elevation, then:
X＝[B,C,T,D],X＝[A,D,M],X＝[B,C,D,M]
X＝[B,C,T,D],X＝[A,D,M],X＝[B,C,D,M]。
as an optimized technical solution of the present invention, in the step S2, the left control handle and the right control handle mainly have the functions of positioning the viewing path in advance, the selection key of the left control handle is used for controlling and changing the model angle for viewing the automobile integral part, and the trigger key of the left handle simulator is used for switching the viewing angle viewing position.
As an optimized technical scheme, the selection key of the right-hand control handle is used for controlling the speed of observing the assembly process of the whole automobile parts, and the trigger key of the right-hand master control handle is used for observing the internal attributes of the whole automobile part model.
As an optimized technical scheme, the selection key of the right-hand main control handle is used for controlling the speed of observing the assembly process of the whole automobile parts, and the trigger key of the right-hand main control handle is used for observing the internal attributes of the whole automobile part model.
As an optimized technical solution of the present invention, in step S4, the wireless communication connection relationship in step a is ethernet network communication connection.
As an optimized technical solution of the present invention, the components of the entire automobile components in step S5, b include, but are not limited to, a main body bracket, a power system, a transmission mechanism, a chassis mechanism, a control system, a circuit connection system, a vehicle hub and vehicle caliper system, a suspension system, an air intake system, an exhaust system, a brake system, a steering system, an ignition mechanism, a fuel mechanism, a cooling system, a lubrication system, and an electrical instrument system.
As an optimized technical solution of the present invention, in step S5, the automobile parts detail in step S5, b include, but are not limited to, an engine, a transmission shaft, a transmission case, a battery, a chassis, a frame, a hub, a bumper, a door, a fender, a windshield, a pillar, a seat, a console, an engine cover, a trunk lid, a sunroof, a roof, a door lock, an armrest, a floor, a door sill, an airbag, a seat belt, a brake master cylinder, a brake cylinder, a vacuum booster, a brake pedal assembly, a brake disc, a brake drum, a brake pad, a brake oil pipe, an ABS pump, a camshaft, an intake valve, an exhaust valve, a rocker arm shaft, a tappet, and a push rod.
The first embodiment is as follows:
a VR display method for automobile parts comprises the following steps:
s1, modeling the parts of the whole automobile;
a. drawing a whole automobile model elevation map needing VR display, and making related simplified assumption and definition;
b. defining a coordinate matrix of each coordinate point on the automobile model elevation;
c. performing kinematic analysis on the system based on the geometric relationship in the automobile model elevation by using a displacement matrix method;
d. defining a stress matrix of each coordinate point;
e. analyzing respective stress conditions of the research objects at a certain moment in the system motion process, and performing dynamic analysis;
f. model linearization, namely linearizing the equation obtained in the step S1, e at the equilibrium position of the system, and ending modeling;
s2, establishing data communication connection;
a. establishing wireless communication connection between the VR glasses with the displacement sensors, the left control handle and the right control handle and the computer for drawing the automobile part model in the step S1 through the wireless transceiver module;
s3, importing automobile part model data;
a. guiding the automobile part model information drawn by the computer with the communication connection relation established in the step S2, a into the VR glasses through the wireless transceiving module;
s4, sharing data;
a. establishing wireless communication connection relations between the VR glasses with the vehicle model data information and the rest VR glasses;
b. transmitting the vehicle model data information to a plurality of VR glasses through the data transceiving function of the VR glasses to complete data sharing;
s5, observing and displaying parts of the whole vehicle;
a. the user who holds VR glasses shows the work of looking over to the whole car of car through two master control handles in a left side, right side.
b. The user who holds VR glasses selects automobile whole car spare part component and part detail through two master control handles in a left side, right side, and the convenience is observed and is looked over part detail and component.
In this embodiment, in step S1, a, the correlation assumption and definition includes: defining: AD is a part of an automobile, S point is a spring-loaded mass center, T point is a tire center, r point is a contact point between a tire and the ground, A, M point is a connection point between a suspension and a vehicle body, B, C point is a spring damper mounting point, r point is a tire grounding point, theta is an included angle between a rod AD and the horizontal direction, and the included angle between a control arm and the positive direction of a Y axis is defined as positive in the anticlockwise direction; theta is an included angle between the rod AD and the horizontal direction, is an included angle between the axis of the tire and the vertical direction, and takes the anticlockwise direction as positive; delta is the extension and contraction amount of the spring shock absorber, d is the transverse displacement of a contact point of the tire and the ground, alpha is an included angle between a rod MD and the vertical direction, gamma is an included angle between a rod AM and an AD, z is sprung mass displacement, and z is unsprung mass displacement.
In this embodiment, the directions are all positive in the upward direction; is the component of unsprung mass acceleration in the Y direction; is the component of the unsprung mass acceleration in the Z direction; z is the input displacement of the road surface, and the directions are all positive; the rod length AM is L, AD is L, and MD is L, where L varies with the control arm pivot angle θ, and the length of the rod at the equilibrium position is L, the amount of extension and retraction δ of the spring damper is L-L.
In this embodiment, in step S1, b, let X, X be the coordinate matrix of each point, subscript "0" denote the initial coordinates of the point, and let the coordinates of J point be expressed as: j ═ J, J and J denote the coordinates of each point in the Y and Z directions, and replacing J with coordinate points a, B, C, D, M, T in the automobile model elevation, then:
X＝[B,C,T,D],X＝[A,D,M],X＝[B,C,D,M]
X＝[B,C,T,D],X＝[A,D,M],X＝[B,C,D,M]。
in this embodiment, the left control handle and the right control handle in step S2, b mainly function to position the viewing path in advance, the selection key of the left control handle is used to control and change the model angle for viewing the whole part of the automobile, and the trigger key of the left handle simulator is used to switch the viewing angle viewing position.
In this embodiment, the selection key of the right-hand control handle is used for controlling the speed of observing the assembly process of the whole automobile parts, and the trigger key of the right-hand master control handle is used for viewing the internal attributes of the whole automobile part model.
In this embodiment, the selection key of the right-hand master control handle is used for controlling the speed of observing the assembly process of the whole automobile parts, and the trigger key of the right-hand master control handle is used for viewing the internal attributes of the whole automobile part model.
In this embodiment, in step S4, the wireless communication connection relationship in step a is an ethernet communication connection.
In this embodiment, in step S5, the vehicle parts in the vehicle include, but are not limited to, a main body support, a power system, a transmission mechanism, a chassis mechanism, a control system, a circuit connection system, a vehicle hub and vehicle caliper system, a suspension system, an air intake system, an exhaust system, a brake system, a steering system, an ignition mechanism, a fuel mechanism, a cooling system, a lubrication system, and an electrical instrument system.
In this embodiment, the automobile parts details in step S5, b include, but are not limited to, an engine, a transmission shaft, a transmission case, a battery, a chassis, a frame, a wheel hub, a bumper, a door, a fender, a windshield, a pillar, a seat, a console, an engine cover, a trunk lid, a sunroof, a roof, a door lock, an armrest, a floor, a door sill, an airbag, a seat belt, a master cylinder, a wheel cylinder, a vacuum booster, a brake pedal assembly, a brake disc, a brake drum, a brake pad, a brake oil pipe, an ABS pump, a camshaft, an intake valve, an exhaust valve, a rocker arm, a rocker shaft, a lifter, and a push rod.
Example two:
a VR display method for automobile parts comprises the following steps:
s1, modeling the parts of the whole automobile;
a. drawing a whole automobile model elevation map needing VR display, and making related simplified assumption and definition;
b. defining a coordinate matrix of each coordinate point on the automobile model elevation;
c. performing kinematic analysis on the system based on the geometric relationship in the automobile model elevation by using a displacement matrix method;
d. defining a stress matrix of each coordinate point;
e. analyzing respective stress conditions of the research objects at a certain moment in the system motion process, and performing dynamic analysis;
f. model linearization, namely linearizing the equation obtained in the step S1, e at the equilibrium position of the system, and ending modeling;
s2, establishing data communication connection;
a. establishing wireless communication connection between the VR glasses with the displacement sensors, the left control handle and the right control handle and the computer for drawing the automobile part model in the step S1 through the wireless transceiver module;
s3, importing automobile part model data;
a. guiding the automobile part model information drawn by the computer with the communication connection relation established in the step S2, a into the VR glasses through the wireless transceiving module;
s4, sharing data;
a. establishing wireless communication connection relations between the VR glasses with the vehicle model data information and the rest VR glasses;
b. transmitting the vehicle model data information to a plurality of VR glasses through the data transceiving function of the VR glasses to complete data sharing;
s5, observing and displaying parts of the whole vehicle;
a. the user who holds VR glasses shows the work of looking over to the whole car of car through two master control handles in a left side, right side.
b. The user who holds VR glasses selects automobile whole car spare part component and part detail through two master control handles in a left side, right side, and the convenience is observed and is looked over part detail and component.
In this embodiment, in step S1, a, the correlation assumption and definition includes: defining: AD is a part of an automobile, S point is a spring-loaded mass center, T point is a tire center, r point is a contact point between a tire and the ground, A, M point is a connection point between a suspension and a vehicle body, B, C point is a spring damper mounting point, r point is a tire grounding point, theta is an included angle between a rod AD and the horizontal direction, and the included angle between a control arm and the positive direction of a Y axis is defined as positive in the anticlockwise direction; theta is an included angle between the rod AD and the horizontal direction, is an included angle between the axis of the tire and the vertical direction, and takes the anticlockwise direction as positive; delta is the extension and contraction amount of the spring shock absorber, d is the transverse displacement of a contact point of the tire and the ground, alpha is an included angle between a rod MD and the vertical direction, gamma is an included angle between a rod AM and an AD, z is sprung mass displacement, and z is unsprung mass displacement.
In this embodiment, the directions are all positive in the upward direction; is the component of unsprung mass acceleration in the Y direction; is the component of the unsprung mass acceleration in the Z direction; z is the input displacement of the road surface, and the directions are all positive; the rod length AM is L, AD is L, and MD is L, where L varies with the control arm pivot angle θ, and the length of the rod at the equilibrium position is L, the amount of extension and retraction δ of the spring damper is L-L.
In this embodiment, in step S1, b, let X, X be the coordinate matrix of each point, subscript "0" denote the initial coordinates of the point, and let the coordinates of J point be expressed as: j ═ J, J and J denote the coordinates of each point in the Y and Z directions, and replacing J with coordinate points a, B, C, D, M, T in the automobile model elevation, then:
X＝[B,C,T,D],X＝[A,D,M],X＝[B,C,D,M]
X＝[B,C,T,D],X＝[A,D,M],X＝[B,C,D,M]。
in this embodiment, the left control handle and the right control handle in step S2, b mainly function to position the viewing path in advance, the selection key of the left control handle is used to control and change the model angle for viewing the whole part of the automobile, and the trigger key of the left handle simulator is used to switch the viewing angle viewing position.
In this embodiment, the selection key of the right-hand control handle is used for controlling the speed of observing the assembly process of the whole automobile parts, and the trigger key of the right-hand master control handle is used for viewing the internal attributes of the whole automobile part model.
In this embodiment, the selection key of the right-hand master control handle is used for controlling the speed of observing the assembly process of the whole automobile parts, and the trigger key of the right-hand master control handle is used for viewing the internal attributes of the whole automobile part model.
In this embodiment, in step S4, the wireless communication connection relationship in step a is an ethernet communication connection.
In this embodiment, in step S5, the vehicle parts in the vehicle include, but are not limited to, a main body support, a power system, a transmission mechanism, a chassis mechanism, a control system, a circuit connection system, a vehicle hub and vehicle caliper system, a suspension system, an air intake system, an exhaust system, a brake system, a steering system, an ignition mechanism, a fuel mechanism, a cooling system, a lubrication system, and an electrical instrument system.
In this embodiment, the automobile parts details in step S5, b include, but are not limited to, an engine, a transmission shaft, a transmission case, a battery, a chassis, a frame, a wheel hub, a bumper, a door, a fender, a windshield, a pillar, a seat, a console, an engine cover, a trunk lid, a sunroof, a roof, a door lock, an armrest, a floor, a door sill, an airbag, a seat belt, a master cylinder, a wheel cylinder, a vacuum booster, a brake pedal assembly, a brake disc, a brake drum, a brake pad, a brake oil pipe, an ABS pump, a camshaft, an intake valve, an exhaust valve, a rocker arm, a rocker shaft, a lifter, and a push rod.
According to the method for displaying the whole automobile parts by the VR, when the method is used, an author can wear the VR device and the active control handle, so that the whole automobile parts can be visited and displayed, a learner can conveniently and fully know the whole automobile structure of the automobile, and the learning effect is improved;
meanwhile, the other people can establish a network connection relationship with the main VR glasses through the Ethernet, so that data can be conveniently imported and transmitted, when the glasses are actually used, a plurality of people can conveniently and uniformly manage and learn, the glasses are effectively suitable for the education and teaching environment of schools, the learning effect of the learning quality of students is improved, the displayed automobiles (all parts of the automobiles) are controlled to be amplified or reduced through the left and right control handles, meanwhile, the automobile parts can be selected, the selected automobile parts can be independently extracted, the parts can be switched to different angles to be checked through the operating rod, and the glasses have a good education and teaching effect;
through the holistic spare part's of car technical mode of VR show, can select corresponding position according to the demand of self and look up, save the loaded down with trivial details link of middle data of turning over, the data change replacement of part is convenient, can look over the effect of the different parts of same position installation, traditional material object demonstration flow has been replaced, reduce the waste of paper data and reduce the auto-parts that the test of auto-factory, maintenance and training stupid all need, improve the live time and the life of every accessory.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A VR method for displaying parts of a whole automobile is characterized in that: the method comprises the following steps:
s1, modeling the parts of the whole automobile;
a. drawing a whole automobile model elevation map needing VR display, and making related simplified assumption and definition;
b. defining a coordinate matrix of each coordinate point on the automobile model elevation;
c. performing kinematic analysis on the system based on the geometric relationship in the automobile model elevation by using a displacement matrix method;
d. defining a stress matrix of each coordinate point;
e. analyzing respective stress conditions of the research objects at a certain moment in the system motion process, and performing dynamic analysis;
f. model linearization, namely linearizing the equation obtained in the step S1, e at the equilibrium position of the system, and ending modeling;
s2, establishing data communication connection;
a. establishing wireless communication connection between the VR glasses with the displacement sensors, the left control handle and the right control handle and the computer for drawing the automobile part model in the step S1 through the wireless transceiver module;
s3, importing automobile part model data;
a. guiding the automobile part model information drawn by the computer with the communication connection relation established in the step S2, a into the VR glasses through the wireless transceiving module;
s4, sharing data;
a. establishing wireless communication connection relations between the VR glasses with the vehicle model data information and the rest VR glasses;
b. transmitting the vehicle model data information to a plurality of VR glasses through the data transceiving function of the VR glasses to complete data sharing;
s5, observing and displaying parts of the whole vehicle;
a. the user who holds VR glasses shows the work of looking over to the whole car of car through two master control handles in a left side, right side.
b. The user who holds VR glasses selects automobile whole car spare part component and part detail through two master control handles in a left side, right side, and the convenience is observed and is looked over part detail and component.
2. The VR method of displaying parts of a vehicle of claim 1, wherein: in step S1, a, the related assumption and definition includes: defining: AD is a part of an automobile, S point is a spring-loaded mass center, T point is a tire center, r point is a contact point between a tire and the ground, A, M point is a connection point between a suspension and a vehicle body, B, C point is a spring damper mounting point, r point is a tire grounding point, theta is an included angle between a rod AD and the horizontal direction, and the included angle between a control arm and the positive direction of a Y axis is defined as positive in the anticlockwise direction; theta is an included angle between the rod AD and the horizontal direction, is an included angle between the axis of the tire and the vertical direction, and takes the anticlockwise direction as positive; delta is the extension and contraction amount of the spring shock absorber, d is the transverse displacement of a contact point of the tire and the ground, alpha is an included angle between a rod MD and the vertical direction, gamma is an included angle between a rod AM and an AD, z is sprung mass displacement, and z is unsprung mass displacement.
3. The VR vehicle part display method of claim 2, wherein: the directions are all positive in the upward direction; is the component of unsprung mass acceleration in the Y direction; is the component of the unsprung mass acceleration in the Z direction; z is the input displacement of the road surface, and the directions are all positive; the rod length AM is L, AD is L, and MD is L, where L varies with the control arm pivot angle θ, and the length of the rod at the equilibrium position is L, the amount of extension and retraction δ of the spring damper is L-L.
4. The VR method of displaying parts of a vehicle of claim 1, wherein: in step S1, b, let X, X be the coordinate matrix of each point, subscript "0" denote the initial coordinate of the point, let the coordinate expression of J be: j ═ J, J and J denote the coordinates of each point in the Y and Z directions, and replacing J with coordinate points a, B, C, D, M, T in the automobile model elevation, then:
X＝[B,C,T,D],X＝[A,D,M],X＝[B,C,D,M]
X＝[B,C,T,D],X＝[A,D,M],X＝[B,C,D,M]。
5. the VR method of displaying parts and components of an entire automobile of claim 3, wherein: in step S1, f, the model linearization data information includes the sheet metal coordinate position and the chassis coordinate position set in the automobile data model, and the appearance and geometric dimension data information of the hub, the automobile body, and the chassis structure.
6. The VR method of displaying parts of a vehicle of claim 1, wherein: in the step S2, the left control handle and the right control handle have the functions of positioning the viewing path in advance, the selection key of the left control handle is used for controlling and changing the model angle for viewing the whole part of the automobile, and the trigger key of the left handle simulator is used for switching the viewing angle viewing position.
7. The VR method of displaying parts and components of an entire automobile of claim 6, wherein: the selection key of the right-hand control handle is used for controlling the speed of observing the assembly process of the whole automobile parts, and the trigger key of the right-hand master control handle is used for checking the internal attributes of the whole automobile part model.
8. The VR method of displaying parts of a vehicle of claim 1, wherein: in step S4, a, the wireless communication connection relationship is ethernet network communication connection.
9. The VR method of displaying parts of a vehicle of claim 1, wherein: in step S5, the vehicle parts in step b include, but are not limited to, a main body support, a power system, a transmission mechanism, a chassis mechanism, a control system, a circuit connection system, a vehicle hub and vehicle caliper system, a suspension system, an air intake system, an exhaust system, a brake system, a steering system, an ignition mechanism, a fuel mechanism, a cooling system, a lubrication system, and an electrical instrument system.
10. The VR method of displaying parts of a vehicle of claim 1, wherein: in step S5, the automobile parts detail in step S b include, but are not limited to, an engine, a transmission shaft, a transmission case, a battery, a chassis, a frame, a hub, a bumper, a door, a fender, a windshield, a pillar, a seat, a console, an engine cover, a trunk lid, a sunroof, a roof, a door lock, a handrail, a floor, a door sill, an airbag, a safety belt, a master cylinder, a brake cylinder, a vacuum booster, a brake pedal assembly, a brake disc, a brake drum, a brake pad, a brake oil pipe, an ABS pump, a cam shaft, an intake valve, an exhaust valve, a rocker arm shaft, a tappet, and a push rod.
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