On-Board RF Cable Network for Stable Low-Power Vehicle Communication
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Solution Overview
Problem
Existing on-board communication systems face challenges in achieving stable communication among multiple function units on a vehicle with a simple configuration, as they require complex antenna setups and active components that increase power consumption and noise-related errors.
Innovation Solution
The system employs a network of wired transfer paths using passive components for radio frequency signal transmission and reception, allowing for flexible frequency settings and reduced active components, enabling stable communication with fewer cables and connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex antenna setups and active components are used for on-board communication, then communication coverage and signal strength are improved, but power consumption increases and noise-related errors occur
Solution Approach 1:
The patent replaces wireless RF communication (electromagnetic field-based) with wired communication (physical connection-based). The communication units are connected via wired transfer paths such as cables or bus structures, eliminating the need for antennas and wireless signal transmission. This substitution fundamentally changes the communication mechanism from electromagnetic radiation to electrical signal conduction through conductors, thereby reducing power consumption and eliminating noise-related errors associated with wireless communication.
Solution Approach 2:
The patent extracts and removes active components (such as amplifiers, oscillators, and signal processing circuits) from the communication system. By using passive wired transfer paths for signal transmission, the system eliminates the need for these power-consuming active components while maintaining communication functionality through direct electrical connections between communication units.
2Reliability
If multiple antennas and active components are deployed for reliable communication, then communication quality is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple communication connections into a single wired transfer path structure. Instead of deploying multiple antennas and separate wireless communication channels, the system uses a unified wired bus or cable network that interconnects all communication units. This consolidation simplifies the overall system architecture by replacing multiple complex wireless components with a single integrated wired communication infrastructure.
Solution Approach 2:
The patent replaces complex wireless antenna systems with simple wired connections. The wired transfer paths provide direct physical connections between communication units, eliminating the need for multiple antennas, RF amplifiers, and wireless signal processing circuits. This substitution dramatically reduces device complexity while ensuring reliable communication through stable electrical connections.
3Loss of energy
If wired transfer paths are used for RF signal transmission, then power consumption is reduced and noise errors are minimized, but signal transmission capability must be maintained
Solution Approach 1:
The patent substitutes wireless electromagnetic signal transmission with wired electrical signal conduction. The wired transfer paths use conductors (cables or bus structures) to transmit communication signals directly between units, replacing the RF transmission mechanism. This substitution reduces energy loss by eliminating radiation losses and minimizes noise errors by providing shielded, controlled-impedance transmission paths that are less susceptible to electromagnetic interference.
Data Source
AI summary
An on-board communication system includes a plurality of function units mounted on a vehicle and performing predetermined information communication, a plurality of communication units disposed respectively corresponding to the plurality of function units, and a plurality of wired transfer paths connecting the plurality of communication units to one another. Each of the plurality of communication units transmits and receives signals in a radio frequency band to and from the other communication units via the wired transfer paths, the signals being modulated and including communication information to be transferred among the function units.