Woodpeckers can cause significant damage to homes, especially in suburban areas. There are a number of preventing and repelling methods including passive decoys, though these may only provide temporary relief. Subsequently, it may be more efficient to implement a woodpecker deterrent, such as motion, light, sound, or ultrasound that would be triggered by detection of woodpecker signature drumming. To detect the typical 25 Hz drumming frequency, sampling periods under 10 milliseconds with frequent FFTs are required with considerable computational costs. An in-hardware spectrum analyzer may avoid these costs by trading off frequency for time resolutions. The trained model converted to TF Lite Micro, ported to an MCU, and identifies a variety of the prerecorded woodpecker drumming. The plan is to integrate the prototype with a deterrent device making it a completely autonomous solution.
翻译:木匠可能对家庭造成重大损害,特别是在郊区。有一些预防和击退方法,包括被动诱饵,虽然这些方法只能提供暂时的缓解。随后,可能更高效地实施木匠威慑,如运动、光、声音或超声波,通过检测木鸟标志打鼓而触发。要探测典型的25赫兹鼓声频率,需要10毫秒以下的取样时段,经常使用FFFT, 计算成本很高。硬件频谱分析器可以通过交换时间解析的频率来避免这些费用。经过训练的模型转换为TF Lite Micro, 移植到一个MCU, 并确定了各种预先记录的木扇鼓。该计划是将原型与一种威慑装置结合起来, 使其成为一个完全自主的解决方案。