The products plan below virtual reality environment and production technology
- Time:
- Click:133
- source:WINNERS CNC Machining
1 second. Accordingly, the demand that virtual reality technology handles speed and monitor to the computation of the computer is very high, the system of most system and high quality is developed on workstation, want to deploy high figure to quicken card. But these two years, personal computer function rises substantially, had come true on personal computer relatively the virtual reality technology of high quality. Cost is reduced and of personal computer popularize a gender, the application that promotes this technology greatly and development. People achieves position of the appearance of outside object, space and rate through the vision, the stereo deepness cue that should know outstanding static state, trends and physiology will get. Static deepness clew basically is relation of the position of the object inside the space, keep out, size and definition, this three-dimensional formative in us had considered to go in in umbriferous relation. The moving that the object carries movables is born feels and the position changes, must be calculated in real time with respect to requirement computer and process image, the visual of short duration that exceeds a person only takes time, general not less than 30 frame / second, ability acquires the image of flowing stability, and won't appear twinkle. Place of our current general and three-dimensional animation asks and this should be achieved. But 2 dimension show such three-dimensional graph and animation on screen, see an object with an eye just like us, lack the deepness feeling of the object and stereo sense. Practice makes clear, the action that the deepness to the object decides pair of eye parallax of the person since feeling. The object that should achieve nature is stereo the effect, must use " two eyes " see an object. In the computer the image in fictitious environment, the image of two eyes the person is calculated apart and must handle, corresponding ground asks the picture that has departure shows. At present commonly used is helmet type monitor, but the price of helmet type monitor of higher resolution exceeds $50000. In the desktop in fictitious environment, be show on common monitor double image or alternate displays are binocular image, glasses of repass light valve departs twice the picture that see. Accordingly, use binocular when image alternate displays, the frame frequency of monitor must be common the double above of indication means. Consider the delay of light valve glasses again, frame frequency not less than 80Hz just do not appear twinkle phenomenon. Binocular and apart image must be calculated in real time with respect to requirement computer and handle 80 frame / the image of second above. Requirement of sex of this real time is very tall, reason uses workstation to serve as lead plane more. In the game software on personal computer, the method previously is to use very low resolution and 2 dimension image. As personal computer speed rise, can use three-dimensional image at present, but resolution still very low. Use high-grade graph to quicken card, can accelerate computational rate greatly, can reach resolution of 32bit color, 1600*1200, 4M Triangles/s and 100M Pixel/s grain, had made the virtual reality technology on personal computer platform entered practical phase. On production technology, be opposite commonly the requirement of noise is inferior. And defy in real time in the military affairs in the virtual reality system such as training, dimensional stereo effect is must. In the desktop in fictitious environment, interactive manipulator basically is common mouse, 6 freedom spend glove of mouse, data, joy stick. Data is taken, act of large and umbriferous ball use in more perfect virtual reality system. The soft hardware price of virtual reality system is taller. For this, according to different utility and need, can deploy different system, be enmeshed appropriately the fictitious environment of deepness just won't make a system too complex reach cost, maintenance burden is overweight. For example, with the system that designs at car appearance modelling, the key is showing the block diagram of high quality is resembled, and the demand of hearing and touch is very low, undertake operating with common mouse can, real time sex also asks not tall. Be like again, the spare parts assembles imitate in, besides image, but maneuverability demand is higher, can deploy 6 freedom to spend mouse and data glove to wait. In the virtual reality system such as training of simulation of car, plane, the eye shot that asks to have expanse, real time control system, distinct sound effect. Want what answer people quickly to operate not only signal, the emulation that the touch that realizes people to wait to force, displacement even feedbacks. 2, the system of applied virtual reality of virtual reality system is in above all the high-tech domain such as military affairs, spaceflight and recreation and roam the application that waits for a respect to score a success. For example: The cockpit system that is used at training of astronaut, pilot, battlefield system of real time drilling (fictitious battlefield) wait. Virtual reality system has fundamental application likewise in products plan, production process, can raise the technical level of the product greatly, for example: Of design of the design of 777 planes of Boeing company, Ford car appearance and collision experiment, factory and building roam etc. At present applied effect had better be below a few respects: (The appearance of 1) product designs for example: Car appearance modelling designs a be a car very important facet, use expanded plastics to make appearance model more before, want to evaluate and be revised what pass for many times, take a lot of work take time. And the appearance design that uses virtual reality to build a model, can revise at any time, evaluation, the number building a model after plan is definite presses a mould according to can using Yu Chong directly design, emulate and machine, use at advertisement and conduct propaganda even. In other product (be like: Plane, building and decorate, electric home appliances