About Realization of Computer Virtual Reality Technology in Conceptual Design
The concept design of a "story version of scenario prediction method" currently popular in the world is to place the product to be developed in certain people, times, places, things and things for observation, prediction, imagination and scenario analysis in the form of Show to the people in the graphic design of the storyboard. As a result, the product has a life and aura at the beginning of the design. However, design expression has become a diverse form of display in the information age. The application of virtual reality technology has made design ideas and design expressions even more powerful. It gives people an intuitive, intimate, and interactive feeling. Compared with traditional products, the products designed and developed in this way greatly reduce the risk of placing them on the market. They also find business opportunities for enterprise decision makers and judge whether the concept products can be further developed. Production, provide a better basis.
1. Virtual reality and virtual reality technology (1) Virtual reality (Virtual Reality, VR) and virtual design (Virtual Design, VD)
Virtual reality (Virtual Reality, VR) is a technology that uses computers to simulate an environment in a provincial city, and "immerses" users into the environment through a variety of sensing devices, enabling users to directly interact with the environment in a natural way. The so-called simulation environment here is a computer-generated colorful stereoscopic graphics, which can be a real embodiment of a specific real world, or a purely conceived world. The sensing equipment includes a device such as a three-dimensional helmet, data gloves, data clothes, etc. worn on the user and a sensing device set in a real environment. Natural interaction refers to operating the martial arts in the environment with daily use and getting real-time stereo feedback. Virtual reality is a brand-new human-computer interaction system, which can produce various sensory stimuli, such as hearing, sight, smell, and touch, to give people the feeling of being on the scene. Environment for interactive operation.
Virtual design is based on the "virtual reality technology-based design method for mechanical products". With this design method, designers can naturally interact with the multi-dimensional information environment through multiple sensors to achieve qualitative and quantitative synthesis. The integrated environment gains perceptual and rational understanding, which helps to deepen concepts and germinate new ideas.
(2) Virtual reality technology Virtual reality technology is a comprehensive technology produced by the combination of human imagination and electronics. It uses multimedia computer simulation technology to form a special environment. Users can interact with this through various sensing systems. This environment interacts naturally to experience a richer feeling than the real world.
2. Definition and connotation of conceptual design Since Pahl and Beitz proposed the term "conceptual design" in the book "Engineering Design", people have studied conceptual design for more than ten years. They define it as: after determining the task, through abstraction, formulating the functional structure, seeking the appropriate action principle and combination, etc., to determine the basic solution path and get the solution. This part of the design work is called conceptual design.
Domestic scholars have also conducted a lot of research on concept design. Among them, Deng Jiabin defined "product concept design" in the book "Product Concept Design" as "a series of ordered and organized from analyzing user needs to generating concept products. Yes, there is a targeted design activity, which manifests as a process from coarse to fine, from fuzzy to clear, from abstract to concrete, and constantly evolving. "
In the decades, people's research on concept design has been increasing and deepening, making the connotation of concept design more extensive and profound. Mainly reflected in: according to the requirements of each stage of the product life cycle, market demand analysis, functional analysis, functional working principle, action behavior concept, behavior carrier selection and program composition, etc. It can be seen that determining the plan is the final result of the conceptual design, and the satisfaction of the whole process of the product life cycle is the key to the conceptual design. The design method integrates various methods more comprehensively, seeks a comprehensive optimal solution, and at the same time makes the design more creative.
Conceptual design is the idea of ​​a product or component, the purpose is to capture the basic shape of the product. At this stage, the shape and precise dimensions of the product have not yet been determined, and the designer has some freedom to change, so as far as possible to examine the design plan in order to select the lowest production cost and a good creative plan. The use of traditional computer-aided design is often a two-dimensional interactive tool, lacking three-dimensional or multi-dimensional functions, but the product is a three-dimensional component, which inevitably leads to low efficiency of human-computer interaction. The current computer-aided design system requires the definition of the size of the part, and such a size may not be accurately obtained at the conceptual design stage of the product or it is not necessary to define it at all, which will inevitably affect the design efficiency and cycle. Traditional computer-aided design requires the cooperation of two types of personnel, namely the product designer and the computer drafter. The product designer ’s conceptual information about the product is communicated to the computer staff through sketches or dictation, which leads to the loss of information or misinterpretation of the drafter However, if the designer directly participates in computer-aided design modeling, the current computer-aided design system's complicated operation and interactive capabilities greatly disperse the designer's energy and limit ideas. In order to overcome such limitations and give full play to the creativity of designers, people began to introduce virtual reality technology into computer-aided design systems for conceptual design, effectively combined virtual reality technology and conceptual design, and used rich and intuitive interactive means to carry out in a virtual environment Conceptual design, which saves the time for accurate product description and size definition. This is computer-aided conceptual design based on virtual reality technology, that is, virtual conceptual design.
3. Research direction and application prospects of virtual concept design (1) Two issues that should be noted in concept design 1. Concept visualization in virtual reality environment. Concept visualization refers to that designers use the screen or model to convert the market demand into a specific form of visualization. Whether the conceptual design can meet the requirements of the target user, the "seeing is believing" drawing or model is the most convincing.
2. Human-computer interaction interface in virtual reality environment. To achieve human-computer interaction, a series of technical problems must be solved to form a harmonious human-computer environment. Virtual reality is an immersive interactive environment based on computable information. Specifically, it is a specific range of virtual environment integrating realistic audio-visual and tactile integration of modern high-tech provincial cities with computer technology as the core. Users need the necessary equipment to The natural way interacts with and interacts with the objects in the virtual environment, thereby producing the feeling and experience of "immersing" in an equivalent real environment.
(2) Prospects of virtual reality technology in concept design In a virtual reality environment, conceptual design of products is the basic content of virtual reality technology. Under the good visualization conditions provided by computer virtual reality, interactively modify the geometry, function, processing and assembly of the three-dimensional model established by computer-aided design, and use virtual reality to provide users with various perceptual interactions such as audio-visual haptics Means, to facilitate the user's operation to the greatest extent, thereby reducing the user's burden and improving the work efficiency of the entire system. Relevant personnel can evaluate all aspects of the prototype including visual effects and the ratio between parts. According to different users' hobbies and requirements, in different virtual environments, personally experience the modification of the model; select the optional parts of the product and observe the design and modification process.
Conceptual design is the initial stage of the design process. Its purpose is to obtain enough information about the product style and shape. At the same time, it is an important stage in the design process, because 60% to 70% of the product cost is caused by this stage. decided. In the face of increasing competition in the product market, it is foreseeable that computer-aided conceptual design based on virtual reality technology will have great development, and will eventually be seamlessly integrated with existing computer-aided design systems. Fierce global market competition, countries have invested a lot of money to conduct in-depth research on virtual reality technology and its application in the field of industrial design. Transforming the research results into productivity in a timely manner is the key to the products quickly occupying the market.
Adopting KN95 grade anti-particulate matter filtering technology and antibacterial environmental protection fabnc, effectively filtering and protecting from PM2.5 air particulate matter and bacteria. without breathing valve.
Adopting KN95 grade anti-particulate matter filtering technology and antibacterial environmental protection fabnc, effectively filtering and protecting from PM2.5 air particulate matter and bacteria. without breathing valve.
(Details
NIOSH Approved: KN95
FDA Cleared
Helps protect against certain airborne biological particles
Fluid resistant and disposable
Features include:
NIOSH approved KN95
Meets CDC guidelines for Mycobacterium tuberculosis exposure control
99% BFE (Bacterial Filtration Efficiency)
Fluid resistant
Collapse resistant cup shape design
Braided headbands, cushioning nose foam, and light weight construction for comfortable wear)
N95 Mask,Surgical Mask,Earloop Face Mask,Disposable Protective Mask
Guangzhou HangDeng Tech Co. Ltd , https://www.hangdengtech.com