Mobile Terminal Visible Light Control System
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Solution Overview
Problem
Conventional mobile terminal systems for controlling lighting devices through wireless communication require a dedicated remote controller, causing inconvenience when users need to dim or operate lighting devices.
Innovation Solution
A mobile terminal equipped with an image capturer, input device, and wireless communicator that captures and analyzes visible light communication signals to detect identification information of lighting devices, allowing users to transmit control signals wirelessly for operation without a dedicated remote controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated remote controller is used to control lighting devices, then the lighting device can be controlled reliably, but the user needs to find the dedicated remote controller which causes inconvenience
Solution Approach 1:
The mobile terminal is designed to serve multiple functions: it acts as both a general-purpose communication device and a remote controller for lighting devices. By integrating the image capturer, visible light communication receiver, and control signal transmitter into a standard mobile terminal, the system eliminates the need for dedicated remote controllers while maintaining reliable control functionality.
Solution Approach 2:
The visible light communication signal transmitted by the lighting device serves as an intermediary mechanism. The mobile terminal captures this light signal through its image capturer (camera), extracts identification information, and establishes control connection. This intermediary approach enables any mobile terminal to control lighting devices without requiring dedicated remote controllers.
2Measurement precision
If a dedicated remote controller is required for each lighting device, then precise control is achieved, but the system complexity increases
Solution Approach 1:
A single mobile terminal with universal functionality replaces multiple dedicated remote controllers. The mobile terminal can identify and control any lighting device in the system through the visible light communication protocol, reducing system complexity while maintaining precise device identification through the image capturer-based recognition system.
3Adaptability or versatility
If visible light communication is used for device identification, then no dedicated remote controller is needed, but the user must point the camera at the device which may be inconvenient
Solution Approach 1:
The lighting device actively transmits its identification information through visible light communication, enabling the mobile terminal to automatically detect and identify the device by capturing the light signal. This self-service mechanism eliminates the need for manual device selection or complex pairing procedures, improving both accessibility and operational simplicity.
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
Enhances usability by enabling remote control of lighting devices using a smartphone or tablet, allowing users to select and control lighting devices through a virtual interface, eliminating the need for a dedicated remote controller and improving operational convenience.
Implementation Method 1
a video of one or more visible light communication devices each transmitting identification information of the visible light communication device through visible light communication
Implementation Method 2
an image capturer which captures a video of one or more visible light communication devices
Data Source
AI summary
A mobile terminal includes: an image capturer which captures a video of one or more lighting devices each transmitting identification information of the lighting device through visible light communication; an input device which obtains an indication from an operator; a wireless communicator which wirelessly communicates with lighting devices; and a controller which controls the image capturer, the input device, and the wireless communicator, wherein the controller detects, by analyzing a video obtained by the image capturer, identification information of a lighting device included in the video, and if the input device obtains an operation indication directed to the lighting device, transmits a control signal corresponding to the operation indication via the wireless communicator to the lighting device (at least one of the lighting devices) having the detected identification information.