一位开发者创建了名为BinRange的项目,利用超宽频(UWB)无线电技术实时监测垃圾箱是否被放出进行收运1。该系统包含一个固定无线电锚点、六个电池供电的标签和Home Assistant集成,通过测量无线信号传播时间实现精确测距,相比传统蓝牙RSSI方法显著提高了精度1。
系统在实测中表现出色,在10.1米距离处的平均读数达到10.09米,标准差仅为3厘米,可靠测距范围约为30米,最远可达37.28米1。天线方向对性能影响显著,调整后测距成功率从37%提升至100%1。该硬件解决方案采用nRF52833处理器、DW3110无线电芯片和LIS3DH加速度计,配备CR2477纽扣电池供电1。
开发过程经历了多轮硬件测试和固件迭代,作者进行了五次外壳设计优化,并采用3D打印工艺1。系统采用自适应功耗管理策略,在静止状态下每30分钟检查一次,移动时则每5秒报告一次位置信息1。硬件成本方面,两块ESP32开发板总计123.64美元,十个标签及编程治具需要330美元1。系统已于2024年9月28日进行首次真实环境测试1。
A hobbyist developer has created BinRange, a custom ultra-wideband (UWB) radio system designed to track whether garbage bins have been put out for collection.1 The project combines a fixed radio anchor point, six battery-powered tags, and Home Assistant integration to determine bin location through precise distance measurement via signal propagation time—an approach that significantly improves upon traditional Bluetooth RSSI methods.1
The system demonstrates notable accuracy in testing, with measurements at 10.1 meters averaging 10.09 meters and maintaining a standard deviation of 3 centimeters.1 The reliable detection range extends approximately 30 meters, with intermittent readings reaching as far as 37.28 meters.1 Antenna orientation proved critical to performance, with directional adjustments raising success rates from 37 percent to 100 percent.1 Hardware components in each tag include an nRF52833 processor, DW3110 radio, LIS3DH accelerometer, and CR2477 button cell battery.1
The developer implemented power management strategies that check for movement every 30 minutes during stationary periods but report positions every 5 seconds when the bin is in motion.1 The total hardware investment came to $453.64, comprising $123.64 for two ESP32 development boards and $330 for ten tags and programming fixtures.1 The project underwent extensive refinement through multiple development cycles, with the developer noting, "I've already massively over-engineered this" and completing "five iterations on the lid" before the system's first real-world test on September 28, 2024.1
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