运用混沌光宽带宽、高精度、稳定性等特点,提出测距理论,从而应用到汽车防撞报警系统的设计。本设计利用单片机的实时控制系统和数据处理功能与混沌光测距技术相互结合,检测前方障碍物与汽车之间的距离,通过数码管显示和发生电路实现的报警系统判断危险程度,告知驾驶员前方道路有危险,及时采取相应的措施,减少事故危险的发生,保证人民的生命财产安全。 By using chaotic optical bandwidth, high precision and stability, this paper proposes the ranging theory, which is applied to the design of automobile anti-collision alarm system. The design of the use of single-chip real-time control system and data processing capabilities and chaos optical ranging technology combined with each other to detect the distance between the front of the obstacle and the car through the digital display and circuit to achieve the alarm system to determine the degree of danger to inform the driver The road in front of the road is in danger and promptly take appropriate measures to reduce the risk of accidents and ensure the safety of people’s lives and property.