在中国,无人机在电影制作、摄影、农业、救援等领域使用越来越广。由于潜在应用广泛,无人机技术可能会迅速变化,以利用最新技术进步,如远距测量和在场检测特性等等。它们目前依靠全球定位系统(GPS)实现许多飞行控制。然而,GPS的精确度对于检测紧邻无人机的目标物的效果并不理想,而且它对电池寿命有负面影响。飞行时间(To F)传感器是一个替代方案,但其使用的超声波或无源红外实现方式过于昂贵、笨重或耗电。 In China, drone use is becoming more and more widely used in film production, photography, agriculture and rescue. Due to potential applications, drone technology can rapidly change to take advantage of the latest technological advances such as telemetry and presence detection features. They currently rely on the Global Positioning System (GPS) for many flight controls. However, the accuracy of GPS is not ideal for detecting the effects of a target close to a drone, and it has a negative impact on battery life. ToF sensors are an alternative, but the ultrasonic or passive infrared they use is too expensive, cumbersome or power hungry.