Research On Graphic Visualization Techonology For Electromagnetic Compatibility In Vehicular Communication System

As we all know that, along with the electromagnetic condition is getting worse and worse in vehicular communication system, we need to get a solution for EMC problem. Actually, our studio had worked out a software tool, which emphasizes it on the calculation and visualization of electromagnetic parameters. My job is related to the visualization module, which is pretty important for the whole work. Before the work, some algorithms and research methods are needed to talk about. In the map-making part, algorithm for scattering electrical current data, which is based on bi-directional interpolate idea is presented, and algorithm for scattering grid, which is based on centroid-midpoint idea is used. In moving visualization part, the video playing method is applied, and it had been proved right by the time.In this paper, some works are studied as follows.Visualization of color map is achieved on AutoCAD platform at first. Then, making use of ActiveX Automation technology and VB6.0, combining with Win32 API, the intercommunicating connection between the software application and AutoCAD is established.An algorithm for making color map based on bi-directional interpolate idea is presented, by which contours of the surface-current and the electric and magnetic field are drawn on AutoCAD platform. A method for creating the orientation figure is presented, and it had showed the excellence so far.But except these above, it also still has a difficulty which is hard to find the right way to solve, that is too much time is used in visualization part even I had tried another method. The main problem is the AutoCAD is inefficient and in addition we can't be good without it. By far, the good way for solving is using a high-powered computer or changing a newer edition of AutoCAD. But for magnetic field visualization, you can also making color map just by Visual Basic language, because it is an planar figure, you can't need the illumination modules of AutoCAD, so it can avoid the problematic part and I think it will be a good idea.