Medical Network Multicast Address Reset for Mobile Devices
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Solution Overview
Problem
Mobile medical devices experience multicast address conflicts when moved to different networks due to the persistence of stored multicast addresses after power loss, leading to potential routing issues and data transmission errors.
Innovation Solution
The system determines whether to continue using stored multicast addresses upon power-up by assessing if the device has been moved to a new location with a different network, and if not, clears the addresses to obtain new ones, preventing conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multicast addresses are stored in non-volatile memory to preserve routing after power loss, then route maintenance is improved, but multicast address conflicts occur when devices are moved to different networks
Solution Approach 1:
The system dynamically manages multicast addresses by transitioning from static stored addresses to dynamic address acquisition. When a mobile device connects to a network, it clears previously stored multicast addresses and obtains new ones appropriate for the current network, ensuring addresses remain valid and conflict-free across network transitions
Solution Approach 2:
The system changes the state of multicast addresses from persistent stored values to transient network-assigned values. By clearing stored addresses and obtaining new ones from the network infrastructure, the system adapts address parameters to match the current network environment, preventing conflicts while maintaining routing reliability
2Object-affected harmful factors
If mobile devices clear multicast addresses upon power up, then multicast address conflicts are prevented, but network reconfiguration time increases
Solution Approach 1:
The system performs preliminary actions by pre-clearing stored multicast addresses before network connection is established. This ensures that when the device joins the network, it immediately uses correct network-assigned addresses without risking conflicts from outdated addresses, and the address acquisition process begins without delay
3Object-affected harmful factors
If devices continuously check network location to determine address validity, then multicast address conflicts are avoided, but system complexity increases
Solution Approach 1:
The system implements self-service by automatically clearing stored multicast addresses and obtaining new ones without requiring manual intervention or complex decision-making logic. The device autonomously manages its address configuration by relying on network infrastructure to provide appropriate addresses, reducing system complexity while preventing conflicts
Data Source
AI summary
A method of controlling a medical device for transmitting and/or receiving a data stream through a medical network, the method comprising transmitting and/or receiving the data stream over the medical network by a network interface using a multicast address stored in a memory of the medical device. Upon powering up the medical device, the method further comprises disabling the network interface from transmitting and/or receiving the data stream using the multicast address. The method further comprises determining whether to continue to use the multicast address. In accordance with a determination to continue to use the multicast address, the method further comprises enabling the network interface such that the network interface can transmit and/or receive the data stream using the multicast address. In accordance with a determination not to continue to use the multicast address, the method further comprises clearing the multicast address from memory and enabling the network interface.