Dual-Cellular Gateway Hot Backup for Reliable M2M Communication
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Solution Overview
Problem
Existing machine-to-machine communication systems face reliability issues with their communications, which can be insufficient in certain circumstances.
Innovation Solution
A gateway device with dual cellular interfaces is provided, allowing one interface to operate as a primary while maintaining an active connection to a secondary interface, enabling seamless switching between networks to ensure reliable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single cellular interface is used for communication, then device complexity is reduced, but communication reliability deteriorates due to insufficient redundancy
Solution Approach 1:
The gateway device is segmented into multiple cellular interfaces (first cellular interface and second cellular interface), each capable of independent operation. This segmentation allows the system to divide communication responsibilities across multiple interfaces, thereby improving reliability without requiring complete redundancy of the entire device.
Solution Approach 2:
The system performs preliminary actions by establishing and maintaining an active connection on the second cellular interface in advance, even while the first interface is in use. This preliminary setup ensures that a backup communication path is ready before it is needed, enabling seamless failover without interruption to service.
2Reliability
If dual cellular interfaces are implemented for redundancy, then communication reliability improves, but device complexity increases
Solution Approach 1:
Multiple cellular interfaces are merged into a unified communication system with a single gateway device that manages both interfaces. The processor coordinates between the first and second cellular interfaces, local communication interfaces, and cellular module, integrating their functions into a cohesive system that provides redundancy without requiring separate standalone devices.
Solution Approach 2:
The gateway device is designed with multi-functionality, where a single device performs multiple roles: it routes communications through the first cellular interface for normal operation, maintains an active connection on the second cellular interface for backup, and can seamlessly switch between interfaces. This universal design improves reliability without proportionally increasing device complexity.
3Reliability
If seamless switching between networks is enabled, then communication availability improves, but switching time and complexity increase
Solution Approach 1:
The system performs preliminary actions by maintaining an active connection on the second cellular interface in advance, even while the first interface is in use. This preliminary setup ensures that authentication and network registration are already completed on the backup interface, so when switching is needed, it occurs immediately without time loss for setup or authentication.
Solution Approach 2:
The system ensures continuity of useful action by maintaining both cellular interfaces active simultaneously. The first interface handles normal communications while the second interface maintains an active connection in parallel. This continuous operation on both interfaces eliminates gaps or interruptions during switching, ensuring uninterrupted communication service.
Data Source
AI summary
Gateway devices can use dual cellular interfaces, each assignable to at least one of a plurality of network services, to provide reliable communications for client machines. A gateway device can use one of the dual cellular interfaces assigned to a first network service as a primary interface and the other assigned to a second network service as a hot backup interface. The backup interface remains connected to a cellular network while communications are routed on the primary interface. Accordingly, the gateway device can rapidly switch communications between from the primary interface to the backup interface. Applications, for example, for ATM payment processing, vending machine telemetry, point of sale payment processing, kiosk internet connectivity, remote monitoring and control, mobile or electronic health, and remote information displays, may run on the gateway devices, on servers, on user devices, or a combination of these devices.