Bone Conduction Helmet with Bluetooth Interface
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Solution Overview
Problem
Traditional bicycle helmets lack advanced communication capabilities and comfort, especially in noisy environments, due to their reliance on air-conducting speakers and microphones, which hinder voice communication and affect road safety.
Innovation Solution
A wireless bicycle helmet with a Bluetooth interface and bone conduction sound transmission technology, featuring a detachable bone conduction device secured by a chin strap with an adjustment unit, allowing for comfortable voice communication and ambient noise perception without cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional air-conducting speakers and microphones are used in helmets, then voice communication can be achieved, but voice communication in noisy environments is not possible and user comfort deteriorates
Solution Approach 1:
The patent replaces the conventional air-conduction acoustic system with a bone conduction system that uses mechanical vibration directly transmitted through the skull bones to the inner ear. This substitution eliminates the need for air-conducting speakers and microphones, enabling clear voice communication in noisy environments while improving user comfort by avoiding ear canal occlusion.
2Reliability
If conventional loudspeakers are worn on the ear for long periods, then voice communication is possible, but user comfort deteriorates and perception of ambient noise is affected
Solution Approach 1:
The patent replaces air-conduction speakers with bone conduction transducers that transmit sound vibrations through the temporal bone directly to the cochlea. This mechanical substitution bypasses the ear canal, allowing ambient noise perception to remain unaffected while enabling clear voice communication even in noisy environments.
3Ease of manufacture
If detachable bone conduction device is used in helmet body, then construction simplicity and manufacturing cost are improved, but device stability may deteriorate
Solution Approach 1:
The patent divides the helmet system into separable modules: a detachable bone conduction device and a helmet body with corresponding fastening structures. This segmentation allows independent manufacturing and assembly of components, simplifying production and reducing costs while maintaining device stability through dedicated fastening mechanisms.
Solution Approach 2:
The patent implements a dynamic fastening system that allows the bone conduction device to be easily attached and detached from the helmet body. The fastening structure provides secure connection during use (stable state) while enabling quick removal when needed (changeable state), balancing stability with ease of assembly and disassembly.
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 provides clear voice communication in noisy conditions, enhances user comfort, and improves road safety by enabling wireless communication through Bluetooth, while maintaining simplicity and low production costs.
Implementation Method 1
sound transmission via bone ultrasound or bone conduction
Data Source
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AI summary
A bone conduction-based Bluetooth wireless riding helmet, comprising a helmet body, an adjuster arranged within the helmet body, a brim arranged at a front end of the helmet body, and straps arranged at two sides of a bottom portion of the helmet, the straps being fixed together by a quick release buckle. A bone conductor is detachably mounted within the helmet body, the bone conductor is electrically connected to a power source system and a control system, and the control system is also electrically connected to an adjustment device arranged on the straps. A bone conduction vibrator sound source is embedded in both the left and right sides of the helmet and integrated with the helmet so that sounds can be heard clearly in a noisy environment.