Digital Video Recorder Packet Link Remote Camera Integration
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Solution Overview
Problem
Digital video recorders for surveillance are limited by cable lengths, signal attenuation, and interference, restricting video surveillance to a single premises or building when using locally connected analog cameras.
Innovation Solution
A video system comprising a digital video recorder and a video encoder connected by a packet link, where the digital video recorder receives and stores video from both locally connected and remotely located cameras, with the video encoder processing and transferring video from remote cameras in a packet format over the packet link for storage and retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If analog video cameras are connected locally to the digital video recorder, then video surveillance can be conducted within a single premises, but the system is limited by cable lengths, signal attenuation, and interference
Solution Approach 1:
The patent introduces a video encoder as an intermediary device between the remote video cameras and the digital video recorder. The encoder converts video signals to a digital format and transmits them over a packet network, acting as a mediator that eliminates the need for long analog video cables while maintaining signal quality. This resolves the contradiction by enabling remote camera connections without being constrained by cable length limitations.
Solution Approach 2:
The patent replaces the mechanical/electrical analog video transmission system with a digital packet-based network transmission system. Instead of using analog video cables subject to physical limitations, the system uses digital encoding and packet switching over a network infrastructure, eliminating signal attenuation and interference issues associated with long analog cable runs.
2Adaptability or versatility
If analog video cameras are connected locally to the digital video recorder, then the system structure is simple, but video surveillance is restricted to a single premises or building
Solution Approach 1:
The patent makes the digital video recorder capable of handling multiple types of video inputs simultaneously - both traditional locally-connected analog cameras and remote network-connected cameras through the video encoder. This multi-functionality allows the system to adapt to different surveillance scenarios and expand coverage area without requiring completely separate systems, balancing versatility with manageable complexity.
Solution Approach 2:
The patent segments the video surveillance system into distinct functional modules: local camera interfaces for analog cameras, a separate video encoder for remote cameras, and a centralized storage/recording unit. This modular segmentation allows each component to be optimized independently while working together to achieve expanded surveillance coverage across multiple premises.
3Adaptability or versatility
If remote cameras are connected via packet link through a video encoder, then surveillance coverage extends beyond single premises, but the system requires additional components and packet format processing
Solution Approach 1:
The patent merges the video encoding and packet transmission functions into a single integrated video encoder device that handles remote cameras. By combining these functions in one unit rather than separate components, the system reduces overall complexity while still enabling extended surveillance coverage through network connections.
Data Source
AI summary
What is disclosed is a video system. The video system includes a digital video recorder comprising a first camera interface configured to receive video captured from a first plurality of cameras, a packet interface configured to receive in a packet format video captured by a second plurality of cameras, and a storage system configured to store the video captured by the first plurality of cameras and the video captured by the second plurality of cameras. The video system also includes a video encoder coupled to the digital video recorder by a packet link, where the video encoder includes a second camera interface configured to receive video captured from the second plurality of cameras and an output interface configured to transfer in the packet format the video captured by the second plurality of cameras for delivery to the digital video recorder over the packet link.