Dual-Camera External Device Control Beyond Rear-Camera Field of View
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Solution Overview
Problem
Existing electronic devices struggle to locate and control external devices outside the field of view of their rear camera, particularly when these devices lack ultra-wideband (UWB) communication capabilities.
Innovation Solution
Equipping electronic devices with both a front and rear camera, enabling the device to calculate the position of external devices using angle and distance measurements from UWB-enabled devices within view, and utilizing the front camera to capture and control devices outside the rear camera's field of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the electronic device uses only the rear camera to detect external devices, then the device structure remains simple, but the electronic device cannot locate external devices outside the rear camera's field of view
Solution Approach 1:
The patent adds a front camera to capture devices in front of the user, complementing the rear camera that captures devices behind the user. This dimensional expansion from single-camera to dual-camera system enables 360-degree device detection coverage, resolving the limitation of rear-camera-only detection while maintaining reasonable system complexity
2Measurement precision
If the electronic device relies on UWB communication to locate external devices, then positioning precision is improved, but external devices without UWB antennas cannot be detected
Solution Approach 1:
The patent uses the camera system as an intermediary to detect external devices that lack UWB communication capabilities. By capturing images of external devices and identifying them through image processing, the system can locate and control devices without requiring them to have UWB antennas, thus improving compatibility while maintaining positioning functionality
Solution Approach 2:
The camera system serves multiple functions: it detects external devices for control, provides visual feedback to users, and enables device identification without requiring specialized communication hardware on the target device. This multi-functionality allows the system to work with both UWB-enabled and non-UWB devices
3Measurement precision
If the electronic device uses angle and distance calculations from UWB devices to locate external devices, then positioning accuracy is improved, but the method fails when external devices are outside the rear camera's field of view
Solution Approach 1:
By adding the front camera, the system expands its detection coverage to include devices in front of the user. The front camera captures images of external devices that are not visible to the rear camera, allowing the system to calculate positions and provide controls for devices in previously undetectable directions
Data Source
AI summary
An electronic device and method are disclosed. The electronic device includes a communication module, a first camera disposed on a first surface of a housing, a second camera disposed on a second surface of the housing opposite to the first surface, and a processor. The processor implements the method, including: executing an application; establishing a communication connection with a second external electronic device; detecting at least one of an angle or a distance between the second external electronic device; visually detecting the at least one first external electronic device located in a field-of-view (FOV) of a first camera; detecting a distance between the electronic device and the at least one first external electronic device, based on the at least one of the angle or the distance; and detecting a position of the at least one first external electronic device.