Bvr Helicopter Vrml Virtual Monitoring System

At present, unmanned helicopters have good value in many fields. The developed countries are doing research on unmanned helicopter actively, but our country is lagging in this area. A research on the unmanned helicopter has been done in this paper, and it will play a positive role in this area.A framework of the controlling and displaying system of the over-the-horizon helicopter was constructed in this issue, and a preliminary study about this system has been done. The system collects the signal from tilt sensor, magnetoresistive sensor and GPS modules, and it gains the data of the helicopter' s pitch, tilt, direction and position. And the data are transmitted to PC through serial port wirelessly, and then they are analyzed and processed by the application of the system on the PC, to display and control the helicopter in the virtual scene. The helicopter in the VRML virtual scene can be controlled and data from sensor by MCU are collected. The functions of the control of the helicopter in the virtual scene and the data acquisition system in the helicopter are completed .The signals from tilt sensor and magnetoresistive sensor are collected by a singlechip computer and data are transmitted to PC, all these have been studied.First, the signal is collected by tilt sensor, magnetoresistive sensor and GPS modules, the data such as helicopter' s pitch, tilt and direction and position are transmitted to PC from the singlechip computer, and they are analyzed and processed by PC, and then stored in the database, these have been studied. Second, the application of the VRML virtual reality technology in the development environment of Delphi. 7 is studied. Through virtual reality component installed in Delphi 7, the control of the helicopter in the VRML virtual scene and the simulation display of the tested model helicopter' s pitch, tilt and direction in three-dimensionalare completed. On this basis, the database interface technology is applied in the software system, and by extracting the data in the database to control the objects in the VRML virtual scene, it is presented in this paper. Not only the data of actual objects are stored, but also the virtual object is showed in three-dimension.Tested of the system indicated that it is feasible to control the 3D model helicopter by database technology, to display flying state in real-time and monitor flight pitch, tilt, direction, height and position and so on . In the topic, the helicopter is controlled dynamically and interactively in the VRML virtual scene, to provide very good value for realizing the interactive control between the helicopter or flyingequipment in real world and module in the virtual world.