Radio Communication Device Sound Control for Heavy-Exertion Calls
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Solution Overview
Problem
Existing radio communication devices for cyclists or runners face issues with loud respiratory sounds being transmitted during heavy physical exertion, making manual operation difficult and inappropriate for emergencies.
Innovation Solution
A radio communication device with a sound acquisition unit, detector, and restriction processor that detects heavy physical load environments and restricts sound transmission, including features like gyro and acceleration sensors to manage uphill climbing or high-speed travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous sound transmission is maintained during heavy physical exertion, then communication continuity is preserved, but respiratory sounds are transmitted loudly causing communication quality degradation
Solution Approach 1:
The system changes the transmission parameter by suppressing sound signals when heavy physical exertion is detected. The controller monitors physical state parameters (acceleration, orientation) and dynamically adjusts the sound transmission parameter to restrict transmission during exertion periods, thereby eliminating respiratory sounds from the communication while maintaining overall communication continuity.
2Ease of operation
If manual operation for switching between speaking and listening is required, then user control is maintained, but operation difficulty increases during heavy physical exertion
Solution Approach 1:
The system performs self-service by automatically detecting physical exertion state and managing the speaking/listening switching without user intervention. The controller monitors acceleration and orientation data, automatically determines when to switch modes, and executes the switching action, thereby eliminating the need for manual PTT operations during heavy physical exertion.
Solution Approach 2:
The system implements feedback by continuously monitoring physical state parameters (acceleration, orientation) and using this information to control the speaking/listening switching. The controller receives feedback from the physical state detection, adjusts the communication mode accordingly, and maintains automatic control, thereby simplifying user operation while managing the control mechanism intelligently.
3Object-generated harmful factors
If sound transmission is restricted during heavy physical exertion, then respiratory sounds are prevented from being transmitted, but communication duration is reduced
Solution Approach 1:
The system applies periodic action by restricting sound transmission only during specific periods when heavy physical exertion is detected, rather than continuously suppressing all transmission. The controller monitors physical state in real-time and applies restriction only during exertion intervals, allowing normal transmission during non-exertion periods, thereby maintaining overall communication duration while preventing respiratory sounds during critical moments.
Data Source
AI summary
A radio communication device and a method of controlling a radio communication device that enable a voice call between users appropriately are provided. The radio communication device according to the disclosure includes a sound acquisition unit that acquires sound that is acquired by a microphone that acquires sound of utterance of a user; a communication controller that transmits the sound that is acquired by the sound acquisition unit to another device that is set previously; a detector that detects that an environment of the user is an environment with a heavy physical load on the user; and a restriction processor that restricts transmission of the sound that is acquired by the sound acquisition unit, which is transmission performed by the communication controller, when the detector detects that it is an environment with a heavy physical load on the user.