TCU Switching Message Synchronization for IoV Continuity
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Solution Overview
Problem
The existing Internet of Vehicles (IoV) technologies face service discontinuity issues due to TCU switching, leading to interrupted message transmission and non-continuous services during vehicle travel, as each TCU covers only a local area and switching processes can disrupt communication.
Innovation Solution
A TCU switching method and apparatus that synchronizes uplink and downlink messages across neighboring TCUs based on vehicle location and direction, ensuring seamless communication by determining the appropriate TCU for message exchange and maintaining message completeness during handovers, using star and M-shaped networking configurations to optimize coverage and reduce communication delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If TCU switching is implemented to provide localized road coverage, then area coverage is improved, but message transmission continuity deteriorates
Solution Approach 1:
The source TCU performs preliminary actions by synchronizing uplink messages to the target TCU before the vehicle actually switches networks. This proactive message forwarding ensures that the target TCU already has the necessary message data when the vehicle enters its coverage area, preventing any transmission gaps during the switching process.
Solution Approach 2:
The target TCU acts as an intermediary by receiving and holding synchronized messages from the source TCU before the vehicle switches. It temporarily stores these messages and forwards them to the vehicle after switching completes, serving as a buffer that maintains message continuity during the transition period.
2Measurement precision
If TCU switching is implemented for localized coverage, then road condition monitoring precision is improved, but service continuity deteriorates
Solution Approach 1:
Downlink messages from the source TCU are synchronized to the target TCU in advance before the vehicle switching event. This ensures that road condition analysis results and other downlink data are already available at the target TCU, maintaining service continuity while preserving the precision of localized road condition monitoring.
3Adaptability or versatility
If TCU switching is performed during vehicle travel, then adaptability to different road areas is improved, but message synchronization complexity increases
Solution Approach 1:
The synchronization mechanism is activated locally and selectively based on vehicle location and switching conditions. Rather than implementing a complex global synchronization system, the patent applies message synchronization only in the specific context of TCU switching events, reducing overall system complexity while maintaining adaptability to different road areas.
Data Source
Figure 1A~1B
Figure 1C~2
Figure 3~4A
AI summary
The present disclosure relates to a TCU switching method and apparatus, and a message synchronization method and apparatus, and pertains to the field of Internet of Vehicles technologies. The TCU switching method includes: receiving a first device message of a first device; determining a first location of the first device based on the first device message; and when the first location of the first device is in an information exchange area, sending the first device message of the first device to a second TCU; and when the first location of the first device meets a first preset condition, handing over the first device to the second TCU. In the present disclosure, the information exchange area is set, and a device message sent by an electronic device in the information exchange area is synchronized to a TCU to be obtained after switching from a TCU existing before the switching. This ensures completeness of a message used when a TCU performs risk analysis on an electronic device in a management and control area of the TCU.