Communication Control Using Delay Trends for Stable System Switching
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Solution Overview
Problem
Existing communication systems fail to switch communication systems before the quality becomes unacceptable and do not minimize the frequency of such switches, leading to potential delays in critical vehicle control operations.
Innovation Solution
A communication control apparatus with multiple communication parts that monitors delay times, evaluates delay trends, and switches to an alternative system only when necessary to maintain communication quality, thereby reducing unnecessary switches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication systems are switched frequently to maintain quality, then communication reliability is improved, but system stability deteriorates due to excessive switching
Solution Approach 1:
The system performs preliminary actions by detecting delay time trends before communication quality becomes unacceptable. The delay time determination part analyzes whether delay is increasing over time and switches communication systems proactively when an increase trend is detected, rather than waiting for quality to deteriorate completely. This preliminary intervention maintains reliability while avoiding unnecessary frequent switching.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring delay times and using this information to control switching decisions. The delay time determination part feeds back delay trend information to the switching determination part, which then adjusts switching behavior accordingly. This feedback loop ensures switching occurs only when necessary, balancing reliability improvement with system stability.
2Reliability
If communication systems are switched proactively before quality degrades, then communication reliability is improved, but switching frequency increases causing additional delays
Solution Approach 1:
The system performs preliminary switching actions when delay time shows an increasing trend, before communication quality becomes unacceptable. By detecting the trend early and switching proactively, the system avoids the much larger delays that would occur if switching waited until quality degradation. This timing optimization ensures switching happens at the optimal moment, minimizing total time loss while maintaining reliability.
Solution Approach 2:
The system dynamically adjusts switching behavior based on real-time delay time trends. The delay time determination part continuously evaluates whether delay is increasing, and the switching determination part dynamically decides whether switching is necessary. This dynamic approach allows the system to adapt switching frequency to actual communication conditions, minimizing unnecessary switching delays while maintaining reliability.
3Adaptability or versatility
If multiple communication systems are monitored and switched between, then adaptability is improved, but device complexity increases
Solution Approach 1:
The system segments the communication control function into distinct modular parts: a delay time determination part that analyzes delay trends, and a switching determination part that decides when to switch. This segmentation allows each module to perform its specific function independently, making the overall complex system more manageable and maintainable while preserving communication adaptability across multiple systems.
Solution Approach 2:
The switching determination part serves multiple functions: it determines when switching is necessary based on delay trends, selects appropriate target communication systems, and manages the switching process itself. This multi-functionality reduces the need for separate specialized components, thereby managing device complexity while maintaining high communication adaptability across different communication systems.
Data Source
AI summary
To switch communication systems at an appropriate frequency the present system includes multiple respective communication parts; and a communication part selection part selecting a communication part for transmitting and receiving predetermined data from the multiple communication parts, wherein the communication status including a delay time for each of the multiple communication parts is acquired and stored. To refer to a storage part, delay times of selected communication parts are compared in a time series manner, variations in the delay time ae determined; and a communication part to be used for transmission and reception of data is determined as a switching destination communication part from the communication status of each communication part when the delay time of the selected communication part indicates a predetermined increase trend. When the switching determination part determines the switching destination communication part, the communication part selection part selects the switching destination communication part.