UWB Positioning,Bluetooth Positioning,AOA,AOD
根据三点定位原理,本项目需要使用3个信号塔。3个信号塔的主体均为BLE4.0模块,需要把BLE4.0模块的AT指令设置为“从设备”。
本项目将利用多个BLE4.0蓝牙模块,配合主控板、OLED显示屏等,构建一个无线定位系统。
This example shows you how to calculate the 2-D or 3-D position of a Bluetooth® low energy (LE) node by implementing Bluetooth direction finding features and the triangulation-based location estimation technique by using Bluetooth® Toolbox™. The Bluetooth Core Specification 5.1 [2] introduced angle of arrival (AoA) and angle of departure (AoD) direction finding features to support centimeter-level accuracy in Bluetooth LE location finding.
Using this example, you can:
- Simulate the direction finding packet exchange between the Bluetooth LE node and each locator to estimate the angles between them.
- Estimate the location of Bluetooth LE node by using triangulation-based location estimation technique in an additive white Gaussian noise (AWGN) channel.
- Measure the positioning accuracy of the Bluetooth LE node related to the bit energy-to-noise density ratio (Eb/No).