Connected Vehicle Sensor Sharing by View Angle Overlap
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Solution Overview
Problem
Connected vehicles face challenges in efficiently sharing sensor data and accessing computing resources without relying on remote cloud servers, leading to increased network traffic and latency.
Innovation Solution
Implementing a vehicular micro cloud system where vehicles collaboratively store and compute data using vehicle-to-vehicle networks, allowing them to share sensor data based on view angle overlap and adjust data sharing amounts accordingly, without the need for remote servers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connected vehicles share sensor data using vehicle-to-network communications with remote cloud servers, then computing resources and data storage are accessible, but network traffic increases and latency occurs
Solution Approach 1:
The patent introduces vehicular micro clouds as intermediary computing resources between vehicles and remote cloud servers. These micro clouds consist of nearby vehicles that provide distributed data storage and computing capabilities, serving as a local mediator that eliminates the need for vehicles to directly access remote cloud servers, thereby reducing network latency while maintaining access to computing resources.
Solution Approach 2:
The patent transitions from a single-dimension remote cloud architecture to a multi-dimensional distributed architecture by creating vehicular micro clouds. This adds a local dimension to data storage and computing, allowing vehicles to access resources both locally through micro clouds and remotely through cloud servers, thereby optimizing the balance between resource availability and network latency.
2Loss of information
If vehicles share all sensor data with other vehicles, then comprehensive information is available to all vehicles, but network bandwidth is consumed inefficiently
Solution Approach 1:
The patent applies local quality by determining data sharing amounts based on the specific view angle overlap between the ego vehicle and each roadway device. Instead of uniformly sharing all sensor data, the system selectively shares only the portion of sensor data that corresponds to the overlapping field of view, thereby providing each vehicle with locally relevant information while minimizing unnecessary network bandwidth consumption.
Solution Approach 2:
The patent dynamically changes the data sharing parameter (amount of sensor data) based on the view angle overlap parameter. When view angle overlap is large, less sensor data is shared because the receiving vehicle can infer much of the environment from its own sensors. When view angle overlap is small, more sensor data is shared to compensate for the limited overlapping view, thus optimizing information completeness while managing bandwidth usage.
3Loss of energy
If adaptive data sharing based on view angle overlap is implemented, then network bandwidth is used efficiently, but calculation overhead increases
Solution Approach 1:
The patent implements partial action by calculating view angle overlap only for the specific sensor pairs that need to exchange data, rather than performing exhaustive calculations for all possible vehicle pairs. This selective approach reduces the overall calculation overhead while still achieving efficient bandwidth utilization for the critical data sharing scenarios.
Data Source
AI summary
The disclosure includes embodiments for adaptive sensor data sharing by a connected vehicle. A method includes calculating, by a processor of an ego vehicle, a view angle overlap between a first sensor of the ego vehicle and a second sensor of a roadway device, wherein the view angle overlap is an amount of sensor view overlap shared by first sensor and the second sensor. The method includes determining an amount of ego sensor data to share with the roadway device based on the view angle overlap. The method includes building a sharing message that includes the amount of ego sensor data in a payload of the sharing message. The method includes transmitting, by a communication unit of the ego vehicle, the sharing message to the roadway device.