Vehicle Communication Controller Switching Paths
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Solution Overview
Problem
Communication data transmission between a vehicle and a server device is disrupted or lost due to the vehicle's movement, leading to potential control issues in intelligent transport systems, as existing systems rely heavily on a single communication path and lack redundancy.
Innovation Solution
The implementation of a vehicle communication system with multiple communication devices (cellular, ADAS, and V2V) and a controller that switches between them as main and backup paths to maintain continuous data transmission, utilizing the vehicle communication control device to select and switch between different communication devices based on availability and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single communication path is used for data transmission between vehicle and server device, then device complexity is reduced, but communication reliability deteriorates due to disruption or loss during vehicle movement
Solution Approach 1:
The communication system is segmented into multiple independent communication paths (first communication path and second communication path) with different communication devices. This segmentation allows the system to diversify communication routes, preventing single-point failure and improving overall communication reliability during vehicle movement.
Solution Approach 2:
The system establishes a backup communication path in advance before the primary communication fails. The controller pre-configures alternative communication devices and paths, so when disruption or loss occurs during vehicle movement, the system can immediately switch to the pre-prepared backup path without interruption, cushioning against communication failures.
2Reliability
If multiple communication devices are provided with different communication paths, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The controller dynamically selects and switches between different communication devices and paths based on real-time communication status. This dynamic adaptation allows the system to activate only the necessary communication paths under different conditions, managing complexity through intelligent control rather than static configuration of all possible paths.
Solution Approach 2:
The controller acts as an intermediary that manages multiple communication devices and paths. It monitors communication status, determines when switching is necessary, and executes the switching logic, thereby simplifying the overall system architecture by centralizing control rather than requiring complex distributed coordination between multiple communication devices.
3Duration of action of stationary object
If communication switching is implemented between multiple devices, then uninterrupted data transmission is achieved, but control complexity increases
Solution Approach 1:
The controller performs preliminary assessment of communication status before switching occurs. It monitors for signs of disruption or loss and proactively initiates switching to backup paths before complete failure occurs, ensuring communication continuity while simplifying control by acting preventively rather than reactively to complete failures.
Data Source
AI summary
An external communication system for a vehicle includes multiple communication devices and a controller. The multiple communication devices are provided in the vehicle. The communication devices transmit and receive communication data between a server device and the vehicle via mutually different communication paths. The controller is control communication by the multiple communication devices. The controller sets at least one of the multiple communication devices as a main communication device that transmits and receives the communication data between the server device and the vehicle. The controller sets at least one of the remaining communication devices as a backup communication device that transmits and receives the communication data between the server device and the vehicle.