Server-Based Road User Coordination With Delta Model Updates
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Solution Overview
Problem
Existing systems for automated vehicle environment data processing require high computational power and complex data transmission, making real-time capability technologically complex and costly, and are not feasible for retrofitting existing vehicles.
Innovation Solution
A method where a server device creates a digital central model of the environment, calculates action instructions, and updates them based on delta data from road users, reducing the computational burden on vehicles by relocating the calculation to the server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If environment calculations are performed in real-time within individual vehicles, then autonomous driving functionality is achieved, but computational power requirements and system complexity increase significantly
Solution Approach 1:
The patent extracts the complex environment calculation function from individual vehicles and relocates it to a central server. The server performs the computationally intensive tasks of creating digital environment models and calculating coordination instructions, while vehicles only need to transmit sensor data and receive instructions, dramatically reducing onboard computational requirements
Solution Approach 2:
The patent introduces a central server as an intermediary between multiple vehicles and the environment. This server acts as a mediator that collects data from all vehicles, processes it centrally to create comprehensive environment models, and distributes coordination instructions back to vehicles, enabling automated driving through centralized rather than distributed computation
2Measurement precision
If high computational power is provided in vehicles for real-time environment processing, then accurate environment modeling is achieved, but energy consumption increases
Solution Approach 1:
The energy-intensive computation of environment models is extracted from vehicles and performed on the server instead. Vehicles only consume minimal energy for sensor data acquisition, data transmission, and receiving instructions, while the server handles all computationally demanding tasks of processing sensor data into accurate environment models
3Loss of information
If comprehensive sensor data is processed locally in vehicles, then complete environment awareness is achieved, but data transmission requirements into the vehicle increase
Solution Approach 1:
Instead of transmitting processed environment information into vehicles, the patent inverts the data flow direction: vehicles transmit raw or semi-processed sensor data to the server, and the server transmits only the essential coordination instructions back to vehicles. This reversal eliminates the need for vehicles to receive and process large volumes of environment data
4Adaptability or versatility
If centralized environment modeling is implemented on a server, then macroperspective coordination is achieved, but system complexity increases
Solution Approach 1:
The patent creates a universal server system that handles multiple functions: collecting sensor data from various vehicle types, creating digital environment models, calculating coordination instructions for different road users, and managing communications. This multi-functional approach consolidates complexity into a single centralized system rather than requiring complex functionality in each vehicle
Data Source
AI summary
A method of coordinating road users via a server device which determines instruction data by a central model and transmits the instruction data as action instruction to respective control circuits of the road user, the central model being a virtual image of a real environment created by the server device from environment data, includes when a road user reaches the real environment a local model is created by onboard sensor data and delta data relating to the central model is determined. The delta data is transmitted to the server device by the control circuit of the road user which creates an updated central model by the delta data and the central model. The server device determines and transmits updated instruction data to the road user as readjustment of the instruction data.