Bus Transfer Node for Selective Message Routing
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Solution Overview
Problem
In communication networks with multiple nodes connected to a bus, all nodes typically wake up from low power mode to process messages, leading to unnecessary power consumption as they receive messages not intended for them.
Innovation Solution
A transfer communication node selectively connects and disconnects buses, allowing only intended messages to reach specific nodes, thereby reducing unnecessary wake-ups and power consumption by operating in two modes: one for message transfer and another for isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all communication nodes monitor messages on the bus to ensure reliable communication, then communication reliability is improved, but power consumption increases because all nodes must wake up from low power mode to process every message
Solution Approach 1:
The bus is segmented into multiple segments using isolation components (isolation resistors and isolation capacitors). Each segment can be independently activated, allowing only nodes in active segments to wake up and process messages. This segmentation enables the system to maintain communication reliability within active segments while reducing power consumption by keeping nodes in other segments in low power mode.
Solution Approach 2:
The system dynamically switches between different operational states: full bus monitoring mode (all nodes active) and segmented isolation mode (only specific nodes active). The isolation components are dynamically configured based on which nodes need to communicate, allowing the system to adapt its power consumption levels to the actual communication needs while maintaining reliability when required.
2Reliability
If all communication nodes wake up to process every message on the bus, then message delivery is ensured, but unnecessary wake-ups increase overall network power consumption
Solution Approach 1:
Nodes that do not need to receive messages are extracted from the active communication bus through the isolation components. These isolated nodes remain in low power mode without consuming energy for message processing, while the isolation components ensure that messages are still reliably delivered to the nodes that remain connected to the active bus segment.
3Use of energy by moving object
If communication nodes remain in low power mode to conserve energy, then power consumption is reduced, but the ability to receive messages is compromised
Solution Approach 1:
The system dynamically transitions nodes between low power mode and active monitoring mode based on communication requirements. When a node needs to receive messages, it is connected to the active bus segment through the isolation components. When no communication is needed, the node remains isolated and in low power mode, thus conserving energy without compromising message reception capability when needed.
Data Source
AI summary
A system and device for providing communications between two or more buses is provided. In one embodiment, the device may comprise a transfer component having a first port configured to be connected to a first bus and a second port configured to be connected to a second bus. The transfer component may be operable in a first operational mode in which signals received via the first port are output the second port and operable in a second operational mode in which signals received via the first port are not output the second port. The device may include a controller communicatively coupled to the transfer component to transition the transfer component between the first and second operational modes.