1, the software part; (the one that develops the content)
2, the hardware part; (the one that interacts and outputs)
3, the system part (i.e., the content part);
Three of them are closely linked, supporting and constraining each other, and it is difficult to achieve the expected goal by ignoring any one of them. In general, it is different from the common model, it is based on the content of the choice of software, and then according to the software to choose the hardware, the end must not be inverted.
Since LZ only asked about the hardware, but did not mention that the system is that type of system, so it can only be a rough introduction.
Hardware system generally consists of a number of sub-modules, they are:
1, the display section: commonly divided into the following categories
a, "desktop-level display system", including CRT stereo (120HZ), LCD stereo (120HZ), digital helmets, naked-eye stereoscopic Display and other entry-level equipment, generally wear active liquid crystal shutter glasses, optical polarization glasses, what red and blue glasses even if the eyes are more expensive than glasses. (Simply put, is to see the stereoscopic real-time 3D content equipment)
b, "multi-channel display system", including single-channel stereo (front projection / rear projection can be, there is a huge difference in cost, the following a few are also so), 120 ° -360 ° ring screen stereoscopic, cavernous stereoscopic (CAVE, MOVE, etc.) In addition, according to the number of channels, respectively, there are two-channel - N-channel difference. In this type of system, the ring screen stereo is the need to add a device called "fusion machine", it is in accordance with the number of channels to buy, a special reminder is that, do not be fooled into purchasing what the all-in-one, soft fusion and other equipment, in the operation of the big data, the same function, the use of hardware is certainly more efficient than the use of software to complete! In the past, I used soft convergence because it can save costs and forced to make it. Simple example: hardware firewalls are far more effective than software firewalls. (This is also looking at the real-time 3D stereo equipment)
2, interactive part:
a, data input devices:
Motion capture \ position tracking equipment (used in the VR environment to capture the human body \ equipment 3D coordinates of the data), such as force feedback equipment (according to the spatial range of the work to choose to experience the physics of the properties of the VR environment), digital gloves (according to the number of points to choose, not the number of points to choose, not to experience the physics of the environment) (according to the number of points to choose, not the higher the node is the better, used to perform in the VR environment, to do the grasping and holding put and other actions), data suit (according to the mode of operation of the device, which is also divided into electromagnetic, mechanical, fiber-optic, passive optics, inertial gyroscope, active optics and posture recognition), position tracker (ultrasonic, electromagnetic, optical), 3D scanner (according to the size of the target to be scanned, the distance, Color and other requirements to choose from, used to capture 3D model data), 3D camera (used to capture stereoscopic video) and so on,
b, data output devices:
In addition to the display system just mentioned, there are VR peripherals including stereo audio, 3D printers, 2-6 degree-of-freedom platforms (used to express the balance of) in the class.
Special reminder: interactive devices will generally have manufacturers to provide WIN driver, but for us, this is not enough, but also must have the VR engine driver can, otherwise your hardware can not work in your VR environment.
The so-called virtual reality technology is characterized by computer technology as the core, with the help of these peripherals mentioned above, to complete the human body's "auditory, tactile, visual, gustatory, olfactory, and sense of balance" of the effective interference with the maximum to match the content of a material world similar to the simulation of the world, so the hardware is only the content service. So the hardware is just a service for the content, if there is no matching content, then increase the investment in hardware are difficult to reach the expected results.