基于超声波测距的无人机自动保护气囊系统

根据超声波测距的原理,设计出一种小型无人机自动保护气囊系统.通过超声波感应技术,自动检测障碍物与机体之间的距离,当距离处于边界值时,系统自动认定无人机处于失控坠机状态,关闭无人机螺旋桨动力,同时打开激发装置,导通舵机电路,瞬间顶破装有CO2气瓶的薄金属膜通过导管气体进入气囊,进而包裹住坠机和机载设备,避免与地面直接撞击,达到保护目的.

The Automatic Protection Airbag System of UAV Based on Ultrasonic Ranging

Based on the principle of ultrasonic ranging, a small unmanned aerial vehicle（UAV） automatic protection airbag system is designed. By ultrasonic sensor technology, it can automatically detect the distance between the ob- stacles and the airborne equipment. When the distance is in the boundary value, the system can automatically iden- tify the state of UAV out of a plane crash, and the power of its propeller will be shut off. At the same time, the re- lay will be stimulated and the steering circuit will be conducted, breaking with C02 cylinder of thin metal film in- stantly. Then, the gas will be released into the balloon, which can wrap the plane or airborne equipment, avoiding them from striking the ground directly, so it can achieve the purpose of protection.