Relay Device Session Control for Network Cameras
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Solution Overview
Problem
Network camera devices face challenges in securely managing access from user devices connected to the same local area network (LAN), as existing solutions fail to effectively restrict access while allowing administrative control over session quantities without processing sensitive audio/video data.
Innovation Solution
A relay device is introduced to control sessions between user devices and network camera devices, allowing access restriction and administrative management without processing audio/video data, by establishing request and response channels and enforcing security protocols to limit session quantities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the relay device processes audio/video data from the network camera device, then the session control functionality is improved, but the processing cycles and system resource consumption increase
Solution Approach 1:
The patent extracts the session control functionality from the relay device, allowing it to manage sessions without processing audio/video data. The relay device terminates video streams and prevents direct connections between user devices and camera devices, thereby controlling session quantities without consuming processing cycles on media data.
Solution Approach 2:
The relay device acts as an intermediary that controls sessions between user devices and camera devices without needing to process the actual audio/video data. It mediates the connection by terminating streams and preventing direct peer-to-peer connections, thus maintaining session control while avoiding unnecessary data processing.
2Adaptability or versatility
If the network camera device allows access from any user device, then the adaptability is improved, but the security is worsened
Solution Approach 1:
The relay device serves as a mediator that enables flexible access control. It receives session termination requests from administrative devices and enforces session limits on camera devices, thereby providing both access flexibility and security without requiring the camera device itself to implement complex access control logic.
Solution Approach 2:
The system implements feedback mechanisms where the relay device monitors session quantities and enforces limits based on administrative policies. This feedback loop allows the system to adapt access flexibility while maintaining security through automated session management and enforcement of quantity thresholds.
3Reliability
If the relay device enforces strict session quantity limits, then the reliability is improved, but the adaptability is worsened
Solution Approach 1:
The session quantity limits are dynamically adjustable through administrative devices. The relay device can modify session thresholds based on changing requirements, allowing the system to maintain reliable session management while adapting to different operational scenarios and flexibility needs over time.
Data Source
AI summary
A server is configured to receive, from a user device, a first connection request including a request for a list of one or more camera devices connected to the server; establish a first channel, between the user device and the server, based on receiving the first connection request; provide the list of one or more camera devices to the user device via the first channel; receive a second connection request identifying a particular camera device of the one or more camera devices; establish a second channel based on receiving the second connection request; and provide the second connection request to the particular camera device via the second channel. A third channel may circumvent the server, and may be used to provide content, captured by the particular camera device, to the user device independently of the server.