Land Mobile Radio Audio Distribution via Network Server
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Solution Overview
Problem
Existing systems face challenges in implementing and managing network-wide audio content distribution to various end users, particularly regarding system access security, reliability, and traffic management for land mobile radio scanners operating over the Internet.
Innovation Solution
The method involves selecting preferred audio recordings from discrete radio transmissions by receiving and storing audio files from plural radio terminals, sending transmission reports to a channel manager, and communicating the network address of the preferred audio file to a destination, using a system that includes frequency agile radio receivers, squelch circuits, and network interfaces for recording, storing, and uploading audio files over the Internet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If audio files are distributed network-wide to multiple end users, then audio content availability is improved, but system access security and traffic management become more complex
Solution Approach 1:
The patent introduces a server as an intermediary component that mediates between radio terminals and client terminals. The server receives audio files from radio terminals, manages storage, handles security authentication, and distributes files to authorized clients. This intermediary architecture improves audio content availability across the network while centralizing security and traffic management functions, thereby reducing the complexity burden on individual terminals.
Solution Approach 2:
The system is segmented into distinct functional components: radio terminals for audio capture, servers for centralized management and storage, and client terminals for audio retrieval. This segmentation allows each component to specialize in specific tasks, improving overall system efficiency and audio content availability while enabling independent optimization of security and traffic management at the server level.
2Productivity
If multiple radio terminals record and store audio files locally, then audio recording capability is improved, but network storage and retrieval efficiency deteriorates
Solution Approach 1:
Radio terminals perform preliminary audio recording and local buffering before network transmission. This allows continuous recording capability without immediate network dependency, maintaining high recording productivity. The pre-recorded files are then efficiently transferred to centralized server storage, optimizing the balance between local recording capability and network storage efficiency.
Solution Approach 2:
The system creates and distributes copies of audio files from centralized server storage to multiple client terminals upon request. This copying mechanism enables efficient simultaneous access by multiple users without requiring each terminal to maintain unique full copies, thereby improving retrieval efficiency while maintaining audio recording capability across the network.
3Adaptability or versatility
If the system supports more client terminals accessing audio content, then user accessibility is improved, but network traffic and system load increase
Solution Approach 1:
The server creates and distributes digital copies of audio files to multiple client terminals simultaneously. Since digital copies can be replicated without quality loss and with minimal additional storage overhead, this approach significantly improves user accessibility across the network while the actual network traffic increase is managed through efficient file transfer protocols and caching mechanisms.
Solution Approach 2:
The system implements a nested architecture where audio files are stored on the server, cached in intermediate buffers, and delivered to clients through layered protocols. This nesting allows the system to handle multiple concurrent users efficiently by organizing data access hierarchically, reducing overall network traffic through intelligent caching and minimizing system load through distributed request handling.
Data Source
AI summary
A network based system for distributing audio recordings of discrete transmissions from land mobile radio systems received by plural radio terminals having scanning receivers to plural client terminals, including methods of selecting the best available recordings and selectively storing content both locally in the radio terminals and at network based storage locations.