Virtual reality technology has a wide range of applications in entertainment, military defense, interior design, real estate development, industrial simulation and other fields. In the military defense industry, virtual reality technology uses 3D visual simulation demonstration system and virtual interface as the main means of implementation. The purpose is to provide three-dimensional visual display, virtual instrument simulation, handle operation and other simulation control and dynamic parameters for related simulation and test processes. Display and situation display for monitoring the entire test process and providing users with a clear and clear viewable range, as well as realistic terrain, terrain and texture. The 3D virtual reality technology solution is designed to provide users with a more realistic test environment to meet a variety of simulation and test needs. At present, the program has been widely used in aviation, aerospace, weapons and other industries. solution The 3D virtual reality technology is implemented by a combination of hardware and software. The main hardware components are as follows: • Run visual driver software on the graphics workstation, receive real-time drive data to generate dynamic simulation images, and then output the images to the stereo image separator • The stereo image separator converts one signal into left and right eye signals and outputs them to two projectors, which automatically adjusts one viewpoint signal to two left and right viewpoint signals. • The projector is usually a DLP projector plus a polarizing lens, or an LCD projector with stereo projection characteristics. • The projector maps the image onto a high-gain metal hard screen that maintains the polarization of the light. When wearing polarized glasses, through the polarized glasses, the user's left and right eyes can only see their respective images, resulting in stereoscopic image vision. • Vision driver software is based on the latest real-time 3D virtual reality development tools and graphical dedicated instrument design tools • Software generates dynamic continuous simulation images in real time and provides a good human-computer interface main feature • Using projection technology to realize 3D stereoscopic display and 2D flat display of real-time dynamic scenes • Realistic imaging of analog infrared and TV sensors • Provide realistic terrain, scenes and textures • Multi-channel display and switching of the Vision screen • The realization of special effects such as explosion, tail flame and sound • Good human-computer interface • System scalability, flexible display of virtual instruments, virtual cockpits and 2D situational maps Applications 1. Application of the system in a comprehensive performance design verification laboratory A three-dimensional visual simulation demonstration system of a Chinese weapon provides a three-dimensional dynamic display during the process of attacking a target. The vision system is connected to the real-time simulator through an Ethernet or fiber-optic reflective memory network, and receives simulation control commands and simulation data online to drive the motion of the aircraft model in the scene. The three-dimensional image generated by the vision system is projected onto the large screen by the projector for display. • The main function ♦ Realize the 3D visual display of the missile from the separation, flight and attack of the aircraft ♦ Realize dynamic text display of missile motion data and action display of controllable control surface ♦ Top view display and side view display of the attack scene in the visual system ♦ Realize engine environment sound, missile flight and explosive sound ♦ Realize the choice of communication mode and communication address configuration, support the expansion of missile model and carrier model 2. Application of virtual instrument in a control computer test and verification system The aviation model is based on the dynamic model excitation test method. The system uses the flight controller to simulate the flight maneuver, uses the virtual instrument to simulate the sling wing gear position and the over-control operation, and supports the schematic page display of the flight control and the modal position of the quilting wing position. Display, monitoring of flight status information and alarm information, visual and 2D situation display. • The main function ♦ Realize virtual flight control and quilting wing control ♦ Realize virtual simulation of aircraft cockpit instruments, such as PFD, EICAS, MFD, etc. ♦ Achieve aircraft flight vision and 2D situational display ♦ Realize dynamic display of various visual and instrument information ♦ Switch display of different working modes ♦ Achieve a complete and realistic human-in-the-loop test
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