Optical Toothbrush Data Transmission via Light Communication
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Solution Overview
Problem
Existing toothbrush systems using Bluetooth or similar radio frequency technologies face issues such as increased size and cost, battery drain, interference from other RF technologies, and low data security, which affect their efficiency and usability.
Innovation Solution
A toothbrush device equipped with a motion sensor, signal analysis unit, and a light communication module that uses visible light to transmit brushing data, eliminating the need for radio frequency transmission, thereby reducing size, cost, energy consumption, and enhancing data security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If Bluetooth or radio frequency transmission is used for data communication, then wireless data transmission capability is achieved, but device size increases due to additional chipset and antenna
Solution Approach 1:
The patent replaces the radio frequency transmission system (chipset and antenna) with an optical transmission system using a light source (LED) and photodetector. This substitution eliminates the need for RF hardware components, thereby reducing device size while maintaining wireless data transmission capability through light-based communication.
2Ease of operation
If Bluetooth or radio frequency transmission is used for data communication, then wireless data transmission capability is achieved, but manufacturing cost increases
Solution Approach 1:
The patent substitutes expensive RF transmission components (chipset, antenna, shielding) with cost-effective optical components (LED, photodetector, lens). This replacement significantly reduces bill of materials cost and simplifies manufacturing processes, making the device more cost-effective while preserving wireless communication functionality.
3Ease of operation
If Bluetooth or radio frequency transmission is used for data communication, then wireless data transmission capability is achieved, but energy consumption increases
Solution Approach 1:
The patent replaces energy-intensive RF transmission with optical transmission using LEDs. Optical communication consumes significantly less power because LEDs can be driven at low currents and do not require the complex power amplification and signal processing needed for RF systems. This extends battery life and reduces energy consumption.
4Ease of operation
If Bluetooth or radio frequency transmission is used for data communication, then wireless data transmission capability is achieved, but data security is compromised
Solution Approach 1:
The patent replaces RF transmission with optical transmission, which inherently provides better security. Light-based communication is directional and cannot penetrate walls, making eavesdropping difficult. The optical channel is physically confined, preventing unauthorized access and interception, thereby enhancing data security while maintaining wireless communication capability.
5Ease of operation
If Bluetooth or radio frequency transmission is used for data communication, then wireless data transmission capability is achieved, but susceptibility to interference from other RF technologies increases
Solution Approach 1:
The patent substitutes RF transmission with optical transmission, thereby eliminating interference from other RF technologies such as Wi-Fi, Bluetooth, and cellular signals. Optical communication operates on a completely different physical medium (light vs. radio waves), making it immune to RF interference and providing stable, reliable data transmission without susceptibility to electromagnetic interference.
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
The solution allows for efficient, secure, and cost-effective data transmission with lower energy consumption, enabling real-time feedback and improved user insights into brushing habits without the drawbacks of traditional RF technologies.
Implementation Method 1
a light communication module for transmitting the brushing data to an external device using the light source
Data Source
AI summary
A toothbrush device is disclosed comprising a motion sensor for sensing motion of the device to produce motion data and a signal analysis unit for analysing the motion data to produce brushing data. A light communication module is arranged to transmit the brushing data to an external device using a light source. This can allow the brushing data to be transmitted without the need to provide a radio frequency transmission module and/or using a light source which also provides visual feedback to the user. The external device may comprise a camera arranged to produce image data, and a processor arranged to process an image of the light source to obtain the brushing data.