低成本高速路车辆碰撞报警器的设计与实现

Design and Implementation of Collision Alarm for Low Cost Highway Vehicle

汽车在高速路上发生碰撞事故后,由于雨雾天、夜晚等天气原因导致的能见度低,或者由于警务人员忙于处理事故现场而无暇顾及其它车辆,容易造成二次交通事故。本设计采用一种低成本的方案来解决二次交通事故问题。通过3轴加速度传感器采集数据后芯片执行算法判定车辆是否发生碰撞,同时将碰撞数据通过Lora无线网络进行广播发送,在通信范围内其他车辆接收到数据后可对其驾驶员进行报警提示,从而达到提前预警的效果。

When there is a crash on a highway,a second traffic accident is more likely to happen due to the poor visibility in the rainy and foggy night as well as other weather conditions or when the police officers are busy attending the scene of the first accident.The design uses a relatively low-cost solution to solve this problem.After the data are collected by the 3-axis acceleration sensor,the chip executes the algorithm to determine whether the collision occurs.Meanwhile,the collision data will be broadcast and sent through the Lora wireless network.The other vehicles within the communication range will receive the data,alarming the driver,then the effect of early warning is achieved.