Camera Hub IP Address Tracking for Seamless Handover
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Solution Overview
Problem
Existing camera systems fail to manage handover during communication between a hub and a mobile terminal apparatus when the mobile terminal switches between different routers, leading to disruptions in media data transmission.
Innovation Solution
A camera system that includes an imaging apparatus transmitting media data and a communication apparatus periodically receiving IP address notifications from a mobile terminal apparatus, allowing it to update the transmission destination for media data to the most recent IP address source, ensuring continuous communication even during handover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a router switches over to a different router during mobile terminal movement (handover), then the mobile terminal can maintain network connectivity, but the communication between the hub and mobile terminal is disrupted because the hub cannot track the new router
Solution Approach 1:
The mobile terminal periodically feeds back its current IP address to the communication apparatus. This feedback mechanism allows the communication apparatus to track the mobile terminal's current router location, enabling seamless handover while maintaining communication continuity. The periodic IP address notification serves as the feedback signal that resolves the contradiction between maintaining connectivity and tracking location changes.
Solution Approach 2:
The system performs preliminary actions by establishing the communication framework and IP address notification mechanism before handover occurs. The mobile terminal is pre-configured to periodically notify its IP address, and the communication apparatus is pre-prepared to update transmission destinations based on these notifications. This preliminary setup ensures that when handover occurs, the system can immediately adapt without disruption.
2Reliability
If the hub continuously monitors for IP address changes to maintain communication, then handover can be supported, but the system complexity increases
Solution Approach 1:
The mobile terminal autonomously notifies the communication apparatus of its IP address changes without requiring the hub to actively monitor or query. The mobile terminal self-services the task of informing the system of its location changes by periodically sending IP address notifications. This eliminates the need for complex monitoring mechanisms at the hub, reducing system complexity while maintaining handover support.
Solution Approach 2:
Instead of continuous monitoring, the system uses periodic IP address notifications from the mobile terminal. This periodic action reduces the communication overhead and complexity compared to continuous monitoring, while still ensuring that handover is detected and handled appropriately. The periodic nature of the notifications provides a balance between reliability and system simplicity.
Data Source
AI summary
A camera system comprising a camera and a hub connected to the camera, wherein the camera system allows handing over while the hub and a portable terminal device (smart phone) are communicating via a router. This camera system adopts a configuration provided with a DECT camera for transmitting media data that includes audio data and/or video data, and a hub for receiving the media data transmitted from the DECT camera, periodically receiving an IP address notification from a previously correlated smart phone, and transmitting the media data to the transmission source of the latest of the IP address notification.