Full-Duplex Wireless Voice Broadcasting System with Channel-Changing
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Solution Overview
Problem
Existing wireless voice communication systems are often one-way, require wires, and suffer from noise interference, making them inconvenient and costly due to frequent microphone replacements and lack of efficient registration and check-in processes.
Innovation Solution
A full-duplex wireless voice broadcasting system with channel-changing and interference-resistance capabilities, featuring an emitting device and a receiving device connected through ZigBee modules, which periodically emit and receive data packages, automate registration and check-in processes, and allow for automatic frequency channel changes to maintain clear communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless microphones are used for voice communication, then wireless mobility is achieved, but noise interference increases
Solution Approach 1:
The patent changes the operating frequency parameter by implementing automatic frequency hopping between 2.4GHz and 5GHz bands, and adjusting transmission power levels dynamically to optimize signal quality and reduce interference in wireless voice communication
Solution Approach 2:
The patent employs composite signal processing techniques combining spread spectrum modulation with error correction codes, creating a robust communication system that resists noise interference while maintaining wireless mobility
2Adaptability or versatility
If microphones are replaced frequently to adapt to different positions, then positioning flexibility is improved, but maintenance cost and complexity increase
Solution Approach 1:
The patent creates a universal wireless communication system where the base station can serve multiple receiving devices simultaneously, and each device can function as both transmitter and receiver, eliminating the need for frequent microphone replacements and reducing maintenance complexity
Solution Approach 2:
The system implements automatic device discovery, registration, and channel allocation without manual intervention, allowing devices to self-configure when moved to different positions, thereby maintaining positioning flexibility while minimizing maintenance requirements
3Device complexity
If one-way voice broadcasting is used, then system simplicity is maintained, but communication reliability for emergency calling decreases
Solution Approach 1:
The patent implements automatic acknowledgment and retransmission mechanisms where receiving devices send confirmation signals back to the base station, and the base station retransmits data packages if acknowledgments are not received, ensuring reliable emergency communication while maintaining system simplicity
Solution Approach 2:
The system uses periodic transmission of data packages containing voice data and non-voice information, with regular intervals between transmissions, ensuring that emergency communications are delivered reliably without requiring complex real-time processing
4Reliability
If registration and check-in processes are implemented, then communication reliability is improved, but process complexity increases
Solution Approach 1:
The patent performs automatic device registration and channel allocation before actual voice communication begins, so that when emergency calling is needed, the communication path is already established and verified, improving reliability without adding complexity during the emergency event
Solution Approach 2:
The system implements automatic registration where receiving devices autonomously register with the base station upon entering the coverage area, and automatic check-in processes occur without user intervention, maintaining reliability while minimizing perceived complexity for users
Data Source
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AI summary
The present disclosure is a full-duplex wireless voice broadcasting apparatus. The apparatus is capable of channel-changing. Full-duplex (two-way) voice communication is achieved by using at least one receiving device and an emitting device. The receiving device has good mobility to be used as an emergent caller to the emitting device. The present disclosure has advantages in interference resistance, energy saving, short-distance emergent calling, and calling for help.