An inter-vehicle networking method using laser media

The number of automobiles is explosively increasing and automobiles have important roles in communities from the viewpoint of transportation. In this situation, the increase in traffic accidents is becoming a serious social problems. Most accidents are caused by the lack of a means of getting information about situations around vehicles. Therefore, the authors propose an inter-vehicle networking method as a means of data exchange. In addition, they propose a variable range sending phase, too. It is able to decrease the number of transmitter-receivers. By using this method, each vehicle can know the positions of neighbor vehicles, the traffic information captured by some other vehicles, and the neighbor node´s information such as speed, braking and so on. So this method is well-positioned for the basis of safety and comfortable driving technology. The authors propose a networking method, too. This networking method may be able to broadcast traffic information such as traffic accident information, jam information, and so on