In the current electronic age, once the development and application of graphene matures to form a laser pointer industrialization, it will undoubtedly completely change the existing electronic device industry. Graphene technology is still in the initial exploration and application stage. While continuously applying graphene technology to the industry, it is continuously upgrading existing graphene technology. In recent years, the concept of graphene has been widely sought after. The popularity of graphene’s R & D and application has risen sharply “and has continued to increase. The upgrading of graphene technology has become a problem to be solved in this field.
In the process of reversing assistance, ultrasonic sensors usually need to be used in conjunction with the controller and display, so as to inform the driver of the surrounding obstacles by sound or a more intuitive display, and remove the driver from parking, reversing, and starting the vehicle to visit. The troubles caused by it will help the driver to remove the defects of blind spots and blurred vision, and improve driving safety.
In effect, the ultrasonic radar has strong penetrability, the method of ranging is simple, and the cost is low. However, because ultrasonic waves are mechanical waves, their use effect will be affected by the propagation medium, such as weather conditions. Under different weather conditions, the transmission speed of ultrasonic waves is different, and the propagation speed is slower. In addition, when the car is driving at a high speed, the green laser pointer ultrasonic ranging cannot keep up with the real-time change of the car distance, and the error is large, affecting the measurement accuracy.