Electronic Device Antenna Signal Strength Direction Detection
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Solution Overview
Problem
Consumer electronic devices equipped with Bluetooth and IR communication struggle to accurately indicate their location in noisy or bright environments without additional buzzer or light-emitting elements.
Innovation Solution
An electronic device with an antenna module, direction detecting module, and signal processing module that determines the directivity of a wireless communication device by analyzing signal strength from multiple offset angles and using a look-up table to calculate the device's angle relative to the user, allowing for location determination without additional indicators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional buzzer or light-emitting elements are added to indicate device location, then location indication capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces mechanical/acoustic indication methods (buzzer, light-emitting elements) with an electronic signal processing system. The antenna module receives wireless signals, the direction detecting module analyzes signal strength from multiple offset angles, and the signal processing module determines directivity through electronic computation and look-up table comparison, thereby indicating device location without additional physical indicators.
Solution Approach 2:
The patent introduces an intermediary signal processing system between the wireless communication device and the user. Instead of directly using buzzer or light elements, the system uses wireless signal strength detection and electronic processing as an intermediary to determine and communicate the device's location and directivity information.
2Measurement precision
If signal strength detection from multiple offset angles is performed, then location determination accuracy is improved, but processing time and computational complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-establishing a look-up table that stores the relationship between signal strength distributions and device angles. During operation, the signal processing module only needs to compare detected signal strengths with this pre-computed table, significantly reducing real-time computational complexity and processing time while maintaining high location determination accuracy.
Solution Approach 2:
The patent uses partial action by detecting signal strength from N specific offset angles (where N is a positive integer larger than 1) rather than continuously scanning all possible angles. This selective sampling approach achieves sufficient location determination accuracy while reducing the number of measurements and processing requirements.
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 accurate location determination of wireless communication devices in challenging environments, such as noisy or bright settings, by utilizing signal strength analysis and look-up table comparisons to determine the device's direction and position relative to the user.
Implementation Method 1
The antenna module is provided for communicating with a wireless communication device
Data Source
AI summary
An electronic device is disclosed. The electronic device comprises an antenna module, a direction detecting module and a signal processing module. The antenna module is provided for communicating with a wireless communication device. The direction detecting module is provided for detecting strength of N wireless signals that the antenna module received from a first offset angle to N-th offset angle with respect to the wireless communication device to determine a directivity of the wireless communication device, in which N is a positive integer larger than 1. The signal processing module is provided for comparing the offset angles corresponding to the strength of the N wireless signals at the directivity of the wireless communication device with a look-up table for obtaining an angle of the wireless communication device with respect to the electronic device.