Digital TV Terminal Offline Video Caching System
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Solution Overview
Problem
The playing quality of high-definition video files on smart televisions is compromised due to network bandwidth limitations and slow download speeds, leading to pauses and poor playback experiences.
Innovation Solution
A digital television terminal with a video file searching unit, data download unit, and data cache unit that allows users to search and download video files from an offline task management server, caching and playing them locally, thereby bypassing network congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If video files are downloaded via network browser or video playback client on smart television, then users can access Internet content, but download speed is slow and playing quality is decreased due to network bandwidth limitations
Solution Approach 1:
The patent implements an offline download system that pre-downloads video files to a cloud storage server before users need to watch them. The system searches for video files in an offline task management server, downloads them to a cloud storage server, and caches them locally, so that when users want to watch videos, the files are already prepared and available for high-speed playback without network congestion
Solution Approach 2:
The patent introduces a cloud storage server as an intermediary between the Internet and the digital television terminal. Instead of directly downloading videos from the Internet to the television (which causes network congestion), the system uses the cloud storage server as a buffer - videos are first downloaded to the cloud server, then cached locally on the television, enabling fast playback without real-time network dependency
2Adaptability or versatility
If multimedia content is provided by fixed operator or television maker, then content delivery is controlled, but content variety is insufficient compared to mass Internet content
Solution Approach 1:
The patent makes the digital television terminal multi-functional by integrating both online browsing capabilities and offline download functionality. The terminal can access Internet content through a network browser while also utilizing an offline download system with cloud storage integration, allowing users to benefit from both controlled operator content and vast Internet content repositories through a single unified system
Data Source
AI summary
Provided are a digital television terminal, a video file playing method and a video file playing system. The terminal comprises: a video file retrieval unit for receiving a retrieval request input by a user, sending the retrieval request to an offline task management server in an offline download system, and receiving a retrieval result returned by the offline task management server; a data download unit for, when a play request for the user to select and play one video file in the retrieval result is received, downloading the selected video file from a cloud storage server which is associated with a preset video file list in the offline download system; a data cache unit for caching the video file downloaded by the data download unit; and a video playing unit for playing the video file acquired from the data cache unit. The embodiments of the present invention realize video file.