Relay Device State Control for Bus Data Relay
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Solution Overview
Problem
Existing communication systems face complexity and data relay failures due to the need for each node to activate the relay device, leading to inefficient power consumption and potential data transmission disruptions when transitioning between transmission enabled and disabled states.
Innovation Solution
A relay device with multiple communication circuits and a state control portion that sets a longer relay transition time, allowing the relay device to remain in a transmission enabled state longer than the node transition time, thereby preventing premature transition to a transmission disabled state and simplifying the system structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the relay device transitions to transmission disabled state when there is no data to be relayed, then power consumption is reduced, but data relay failures occur when node transition time is longer than relay transition time
Solution Approach 1:
The patent changes the time parameter by setting relay transition time longer than node transition time. This parameter adjustment ensures the relay device remains in transmission enabled state long enough to receive and relay data packets, preventing data relay failures while still allowing power consumption reduction when no data is present.
Solution Approach 2:
The relay device preliminarily extends the transmission enabled state duration to cover the entire node transition period. By proactively maintaining the transmission enabled state beyond the immediate data transmission window, the system ensures data packets are not missed while managing power consumption efficiently.
2Reliability
If each node activates the relay device to transmit data, then data transmission is enabled, but system complexity increases
Solution Approach 1:
The relay device automatically transitions between transmission enabled and disabled states based on its own data buffer status and timing, without requiring each node to actively activate it. This self-service mechanism reduces system complexity by eliminating the need for complex node-side activation logic while maintaining reliable data transmission capability.
3Use of energy by moving object
If the relay device transitions quickly to transmission disabled state, then power consumption is reduced, but data transmission disruptions occur
Solution Approach 1:
The patent optimizes the relay transition time parameter to balance power consumption and data transmission continuity. By setting this parameter longer than the node transition time, the system prevents transmission disruptions while still achieving power savings during idle periods, resolving the contradiction between quick state transition and continuous data transmission.
Data Source
AI summary
A relay device may include a plurality of communication circuits and a state control portion. The relay device may relay the data among a plurality of buses, each of which connecting one or more nodes. The plurality of communication circuits may perform transmission and reception of the data, and transition among a plurality of states including a transmission enabled state and a transmission disabled state. The plurality of communication circuits may be connected to the plurality of buses in one to one manner. The state control portion may cause a specific communication circuit to transition from the transmission enabled state to the transmission disabled state when a relay transition time has elapsed from an occurrence of predetermined event. The specific communication circuit may represent at least one of the plurality of communication circuits to which at least one of the plurality of buses connecting the specific node is connected.