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设计了一种以STM32单片机为控制核心的短距离高精度定位系统。系统通过识别定点位置的单一颜色块作为标识物来控制无人机不断飞到标识物上空,从而实现精准定位。本系统基于OV7670+STM32的结构开发,通过OV7670采集图像存储在FIFO中;STM32通过读取FIFO中的数据进行颜色识别与跟踪。实验结果表明,本系统识别准确率较高,定位精度较GPS定位提高了一个量级。
Designed a STM32 microcontroller as the control center of the short-range high-precision positioning system. The system controls the UAV to fly over the marker by identifying a single color patch at the fixed point as a marker to achieve precise positioning. The system is based on the structure of OV7670 + STM32 development, image acquisition OV7670 stored in the FIFO; STM32 by reading the data in the FIFO color identification and tracking. The experimental results show that the system has higher recognition accuracy and the positioning accuracy is improved by one order of magnitude compared with GPS positioning.