Wireless Signal 3D Localization Using AoA and External Positioning
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Solution Overview
Problem
Existing electronic devices lack efficient methods to accurately determine the three-dimensional location of wireless signal transmission from target devices using wireless communication schemes like Wi-Fi and Bluetooth, limiting their ability to precisely identify and display or communicate the location of these devices.
Innovation Solution
An electronic device equipped with an antenna circuit, communication circuit, and processor that receives wireless signals, instructs external devices to change positions, measures distance and angle of arrival, and calculates three-dimensional location information using received signal strength and time/phase differences to identify the target device's location, which can then be displayed or communicated through graphical or audio means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing electronic devices use wireless communication schemes (Wi-Fi, Bluetooth) for connection, then wireless connectivity and communication are achieved, but the ability to accurately determine three-dimensional location of target devices is insufficient
Solution Approach 1:
The patent introduces an external electronic device as an intermediary to assist in location measurement. The external device receives wireless signals from the target device and provides received signal strength information back to the electronic device, enabling indirect location determination without requiring complex integrated hardware in the target device itself.
Solution Approach 2:
The patent transitions from two-dimensional location tracking to three-dimensional location estimation by incorporating angle of arrival measurements in multiple directions. By measuring signals at different angular positions and combining this with distance information, the system achieves volumetric location precision.
2Measurement precision
If the electronic device instructs the external electronic device to be located at specific positions in different directions, then angle of arrival information can be acquired for three-dimensional location calculation, but the operation process becomes more complex
Solution Approach 1:
The system implements a feedback loop where the electronic device instructs the external device to position itself at specific locations, receives signal strength information back, and uses this feedback to calculate location. This iterative feedback process enables accurate three-dimensional location estimation through multiple directional measurements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise three-dimensional location estimation of wireless signal transmission, allowing accurate identification and display or communication of the target device's location, enhancing user interaction and connectivity.
Implementation Method 1
receive a wireless signal transmitted based on a wireless communication scheme by a target electronic device
Implementation Method 2
determine a first distance value between the first location of the external electronic device and a fixed location of the electronic device
Implementation Method 3
acquire a first angle of arrival, based on the first distance value and the first information
Data Source
AI summary
An electronic device and method for determining target device location includes receiving a wireless signal from a target device; acquiring first information from an external device at a first location; determining a first distance value between the first location and the electronic device's fixed location by instructing the external device to be in a first direction; acquiring a first angle of arrival; acquiring second information from the external device at a second location; determining a second distance value by instructing the external device to be in a different second direction; acquiring a second angle of arrival; acquiring three-dimensional location information based on both angles of arrival; and identifying the target device's location.