CN114397113A - Automobile CMF model evaluation system and method based on VR technology - Google Patents
Automobile CMF model evaluation system and method based on VR technology Download PDFInfo
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- CN114397113A CN114397113A CN202111623002.2A CN202111623002A CN114397113A CN 114397113 A CN114397113 A CN 114397113A CN 202111623002 A CN202111623002 A CN 202111623002A CN 114397113 A CN114397113 A CN 114397113A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/001—Testing of furniture, e.g. seats or mattresses
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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Abstract
The invention discloses an automobile CMF model evaluation system and an evaluation method based on VR technology, wherein the evaluation system comprises: the computer, first apparent equipment, evaluation platform and seat system, wherein, seat system includes seat body, seat perception module and seat control system. The evaluation method comprises the following steps: 1) adjusting the position of the seat body; 2) the relative position of the seat in the automobile 3D model is superposed with the position of the seat body; 3) and after entering the evaluation platform, the evaluator wears the head display equipment to perform evaluation work. In the invention, an evaluator can be arranged in the data model to observe the design and the structure of the vehicle so as to evaluate the visual design and the object shielding condition of the vehicle, thereby greatly improving the evaluation efficiency of the automobile model.
Description
Technical Field
The invention relates to the field of automobile design model evaluation, in particular to an automobile CMF (design) model evaluation system and an automobile CMF (design) model evaluation method based on VR (virtual reality) technology.
Background
At present, the evaluation of the automobile CMF model is mainly realized by manufacturing an entity model, and the entity model cannot be adjusted in time according to the research and development progress due to the long manufacturing period. Although auxiliary evaluation can be performed by using a three-dimensional digital model, such an evaluation method is not directly strong. At present, no efficient and intuitive complete vehicle CMF model evaluation method exists.
In recent years, VR technology has been rapidly developed, and its application direction is gradually changing. The prior VR technology is generally applied to the game industry, and the VR technology is applied to the industries of automobiles, 3D modeling and the like at present. The VR technology can establish a controllable virtual space, and personnel can complete different actions in the virtual scene and experience various scenes, so that a space is provided for applying the VR technology to automobile model evaluation.
Therefore, how to apply VR technology to the evaluation of modeling and design of automobile models has become a technical problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, an object of the present invention is to provide an automobile CMF model evaluation system and an evaluation method based on VR technology, in which an evaluator can be placed in a data model to observe the design and structure of a vehicle to evaluate the visual design and the object occlusion condition of the vehicle, thereby greatly improving the evaluation efficiency of an automobile model.
In order to solve the technical problem, the technical scheme adopted by the invention is as follows: the utility model provides an automobile CMF model evaluation system based on VR technique which characterized in that: the method comprises the following steps:
the computer is used for establishing an automobile 3D model and a three-dimensional evaluation scene;
the head display equipment is connected with the computer and is used for visually presenting the automobile 3D model and the three-dimensional evaluation scene;
the evaluation platform is rectangular as a whole, the edge of the evaluation platform is provided with an edge mark for bearing a seat, and a virtual platform corresponding to the evaluation platform is arranged in a three-dimensional evaluation scene;
the seat system comprises a seat body, a seat sensing module and a seat control system, wherein the seat body is arranged on the evaluation platform, and the seat sensing module is used for sensing and transmitting position information of the seat body; the seat control module is connected with the computer and used for adjusting the spatial position of the seat body.
Further, the head display equipment adopts VR interactive equipment.
Further, the edge mark is 50mm away from the edge of the evaluation platform and surrounds the evaluation platform for a circle.
Further, the seat body and the evaluation platform are fixed in position in the horizontal direction, and the seat control module is used for adjusting the height position of the seat body.
Further, the method for establishing the 3D model of the automobile comprises the following steps:
1) presetting a library file: classifying all appearance effects according to the types of colors, dermatoglyphs and processes, and simultaneously pre-storing each type in a 3D software in a library file form;
2) 3D digital-analog classification: performing primary class division on the 3D model of the automobile according to four plates of an external decoration, an internal decoration, an instrument board and a seat, performing secondary class division according to CMF definition, and storing areas defined by the same CMF in the same set for classification;
3) appearance definition: and calling step 1), wherein a library file prestored in step 1) is used for carrying out CMF definition on each part of the automobile 3D model according to the sequence of levels and categories.
Further, the CMF definition includes color, dermatoglyph, and process definition.
A method for evaluating an automobile CMF model based on VR technology is characterized in that: the method comprises the following steps:
1) adjusting the position of the seat body to a proper position and then fixing; the seat sensing module transmits the position data of the seat body to the computer;
2) transforming the position of a space coordinate system of the automobile 3D model to enable the relative position of the seat 3D model in the automobile 3D model to be superposed with the position of the seat body;
3) after entering the evaluation platform, an evaluator wears the head display device, and then controls and displays the 3D model and the three-dimensional evaluation scene of the automobile through the computer, so that the evaluator can visually perform evaluation work.
Further, in the evaluation process, an evaluator can adjust the height of the seat body through the seat control system to evaluate different view angles.
Compared with the prior art, the invention has the following advantages:
1. an evaluator can be positioned within the data model to observe the design and construction of the vehicle to evaluate the visual design and object occlusion of the vehicle.
2. In the evaluation process, the 3D model of the automobile is timely modified according to subjective feeling of VR experience of evaluators, so that the evaluation efficiency of the automobile model can be greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic diagram of a 3D model and a three-dimensional evaluation scene of an automobile according to the present invention
Fig. 3 is a control logic diagram of the seating system of the present invention.
In the figure: 1-computer, 2-head display equipment, 3-evaluation platform, 4-seat system, 5-automobile 3D model, 6-virtual platform and 7-seat 3D model.
Detailed Description
The invention will be further explained with reference to the drawings and the embodiments.
Example (b): referring to fig. 1 and 2, an automobile CMF model evaluation system based on VR technology includes:
the computer 1 is used for establishing an automobile 3D model 5 and a three-dimensional evaluation scene; the computer 1 is equipped with 3D software and is able to present a complete vehicle model (data) with a complete CMF definition. Meanwhile, the computer 1 is also an interactive tool between an evaluator and the automobile 3D model 5, the evaluator can also directly modify and adjust the automobile 3D model 5 through the computer 1, and the process can also be presented through the head display device 2 in real time. Preferably, the head display device 2 is a VR interaction device.
And the head display device 2 is connected with the computer 1 through a signal line and is used for carrying out three-dimensional visual presentation on the automobile 3D model 5 and the three-dimensional evaluation scene. Specifically, the signal line passes above the automobile model evaluation system through a bracket, a pulley, and the like, and then is connected to the computer 1 and the power supply.
The evaluation platform 3 is rectangular as a whole, the edge of the evaluation platform is provided with an edge mark for bearing a seat, and a virtual platform 6 corresponding to the evaluation platform 3 is arranged in a three-dimensional evaluation scene. In practice, the evaluation platform 3 has a length and width dimension of 6m × 4m to accommodate most vehicle models. The edge mark is 50mm away from the edge of the evaluation platform 3 and surrounds the evaluation platform 3 for a circle. The boundary marker is embodied in a physical form on the evaluation platform 3, and is also embodied in a model form inside a three-dimensional evaluation scene created by the computer 1, so that the safety of an evaluator in the evaluation process is improved.
The seat system 4 comprises a seat body, a seat sensing module and a seat control system, wherein the seat body is arranged on the evaluation platform 3, and the seat sensing module is used for sensing and transmitting position information of the seat body; the seat control module is connected with the computer 1 and used for adjusting the spatial position of the seat body. The seat body is embodied in the form of a real object on the evaluation platform 3, and is also embodied in the form of a model inside the 3D model 5 of the automobile created by the computer 1. The seat body and the evaluation platform 3 are fixed in position in the horizontal direction, and the seat control module is used for adjusting the height position of the seat body.
In order to quickly define the CMF of each area of the automobile model and shorten the modification period of the whole automobile CMF model, in the scheme, the method for establishing the automobile 3D model 5 comprises the following steps:
1) presetting a library file: all appearance effects are classified according to the types of colors, dermatoglyphs and processes, and meanwhile, each type is pre-stored in the 3D software in the form of library files. The library file can directly generate a storage space under the corresponding 3D model, and carry out appearance effect editing on the linked 3D model, and can realize batch definition operation.
2) 3D digital-analog classification: the 3D model 5 of the automobile is subjected to primary class division according to four plates of an external decoration, an internal decoration, an instrument board and a seat, secondary class division is carried out according to CMF definitions (different), and areas defined by the same CMF are stored in the same set for classification.
3) Appearance definition: calling step 1), pre-storing library files, and performing CMF definition on each part of the automobile 3D model 5 according to the sequence of levels and categories. The CMF definition comprises color, dermatoglyph and process definition, and can be used in an overlapping way to produce effects.
Referring to fig. 2 and 3, a method for evaluating an automobile CMF model based on VR technology includes the following steps:
1) adjusting the position of the seat body to a proper position and then fixing; the seat sensing module transmits the position data of the seat body to the computer. Wherein, the evaluator can modify the 3D model 5 of the car according to the data, so that the seat body is consistent with the position information of the 3D model 7 of the seat in the 3D model 5 of the car.
2) And converting the position of the space coordinate system of the automobile 3D model 5 to enable the relative position of the seat model in the automobile 3D model 5 to be overlapped with the position of the seat body. Since the fixed point position of the seat system is constant on the evaluation platform, the seat system position is set as the origin. This point also serves as the origin point inside the computer created 3D model 5 of the car. Before the evaluation is started, the position of the space coordinate system of the automobile 3D digital-analog needs to be converted, so that the relative position of the seat 3D model 7 in the automobile 3D model 5 is overlapped with the original point.
3) After entering the evaluation platform, an evaluator wears the head display device, and then controls and displays the 3D model 5 of the automobile and the three-dimensional evaluation scene through the computer, so that the evaluator can visually perform evaluation work. In the evaluation process, an evaluator can adjust the height of the seat body through the seat control system so as to evaluate different view angles.
In the evaluation process, in order to prevent the VR interaction device from being damaged due to collision between the head display device and an object in a real scene and ensure the safety of the evaluation process, any other person or object cannot appear on the evaluation platform. Meanwhile, when the evaluation work is carried out, an evaluator can wear a head display device after entering the evaluation platform; before the evaluator is ready to step on the boundary mark on the evaluation platform, the head display equipment needs to be immediately picked off, and then subsequent operation is carried out, so as to avoid unsafe events.
By adopting the scheme, an evaluator can be arranged in the data model to observe the design and the structure of the vehicle so as to evaluate the visual design and the object shielding condition of the vehicle. In the evaluation process, the 3D model is timely modified according to subjective feeling of VR experience of evaluators, so that the evaluation efficiency of the automobile model can be greatly improved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (8)
1. The utility model provides an automobile CMF model evaluation system based on VR technique which characterized in that: the method comprises the following steps:
the computer is used for establishing an automobile 3D model and a three-dimensional evaluation scene;
the head display equipment is connected with the computer and is used for visually presenting the automobile 3D model and the three-dimensional evaluation scene;
the evaluation platform is rectangular as a whole, the edge of the evaluation platform is provided with an edge mark for bearing a seat, and a virtual platform corresponding to the evaluation platform is arranged in a three-dimensional evaluation scene;
the seat system comprises a seat body, a seat sensing module and a seat control system, wherein the seat body is arranged on the evaluation platform, and the seat sensing module is used for sensing and transmitting position information of the seat body; the seat control module is connected with the computer and used for adjusting the spatial position of the seat body.
2. The VR technology based automotive CMF model evaluation system of claim 1, wherein: the head display equipment adopts VR interactive equipment.
3. The VR technology based automotive CMF model evaluation system of claim 1, wherein: the edge mark is 50mm away from the edge of the evaluation platform and surrounds the evaluation platform for a circle.
4. The VR technology based automotive CMF model evaluation system of claim 1, wherein: the seat body and the evaluation platform are fixed in position in the horizontal direction, and the seat control module is used for adjusting the height position of the seat body.
5. The VR technology based automotive CMF model evaluation system of claim 1, wherein: the method for establishing the automobile 3D model comprises the following steps:
1) presetting a library file: classifying all appearance effects according to the types of colors, dermatoglyphs and processes, and simultaneously pre-storing each type in a 3D software in a library file form;
2) 3D digital-analog classification: performing primary class division on the 3D model of the automobile according to four plates of an external decoration, an internal decoration, an instrument board and a seat, performing secondary class division according to CMF definition, and storing areas defined by the same CMF in the same set for classification;
3) appearance definition: and calling step 1), wherein a library file prestored in step 1) is used for carrying out CMF definition on each part of the automobile 3D model according to the sequence of levels and categories.
6. The VR technology based automotive CMF model evaluation system of claim 5, wherein: CMF definitions include color, dermatoglyph, and process definitions.
7. A method for evaluating an automobile CMF model based on VR technology is characterized in that: the method comprises the following steps:
1) adjusting the position of the seat body to a proper position and then fixing; the seat sensing module transmits the position data of the seat body to the computer;
2) transforming the position of a space coordinate system of the automobile 3D model to enable the relative position of the seat 3D model in the automobile 3D model to be superposed with the position of the seat body;
3) after entering the evaluation platform, an evaluator wears the head display device, and then controls and displays the 3D model and the three-dimensional evaluation scene of the automobile through the computer, so that the evaluator can visually perform evaluation work.
8. The method of claim 7, wherein the vehicle CMF model evaluation method based on VR technique is characterized in that: in the evaluation process, an evaluator can adjust the height of the seat body through the seat control system so as to evaluate different view angles.
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Citations (5)
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| CN109615969A (en) * | 2019-01-11 | 2019-04-12 | 上海第二工业大学 | Automobile assembling experiment porch based on virtual reality technology |
| CN109963144A (en) * | 2019-03-28 | 2019-07-02 | 重庆长安汽车股份有限公司 | A kind of vehicle-mounted identifying system based on AR-HUD |
| CN110489878A (en) * | 2019-08-22 | 2019-11-22 | 浦立泽智能科技(昆山)有限公司 | A kind of automobile product development design method and VR system based on virtual reality |
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- 2021-12-28 CN CN202111623002.2A patent/CN114397113A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106530405A (en) * | 2016-11-22 | 2017-03-22 | 盐城工学院 | Automobile production line real-time roaming system based on virtual reality technology |
| CN106960612A (en) * | 2017-05-24 | 2017-07-18 | 电子科技大学 | One kind sees car and test ride simulation system and method based on VR |
| CN109615969A (en) * | 2019-01-11 | 2019-04-12 | 上海第二工业大学 | Automobile assembling experiment porch based on virtual reality technology |
| CN109963144A (en) * | 2019-03-28 | 2019-07-02 | 重庆长安汽车股份有限公司 | A kind of vehicle-mounted identifying system based on AR-HUD |
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