Trajectory Determination for Road Users via Sensor Data
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Solution Overview
Problem
Conventional road user assistance systems fail to provide adequate assistance for unknown route sections, such as junctions with multiple lanes, as they lack accurate and up-to-date information on desired trajectories, leading to difficulties in navigating these areas effectively.
Innovation Solution
A method that determines a desired trajectory for a road user by using sensors to gather data from other road users who have previously traversed the route section, processing this information with a computation unit to create an accurate and up-to-date trajectory, which can be updated continuously and adjusted based on real-time changes, such as roadworks, and communicated through various transmission methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional assistance systems use only pre-stored map data for route guidance, then the system structure remains simple, but the accuracy and up-to-dateness of trajectory information deteriorates, leading to inadequate assistance for unknown route sections
Solution Approach 1:
The patent introduces a server as an intermediary between vehicles and users. The server collects trajectory data from multiple vehicles, processes it to determine desired trajectories, and provides this information to users. This mediator resolves the contradiction by enabling accurate, up-to-date trajectory information without requiring complex processing in each vehicle system.
Solution Approach 2:
The system serves multiple functions: it collects trajectory data from various road users, processes this data to determine desired trajectories, stores the information, and provides assistance to multiple vehicles. This multi-functionality approach enables accurate trajectory guidance while distributing system complexity across a network rather than concentrating it in individual vehicles.
2Reliability
If the system collects and processes trajectory data from multiple road users in real-time, then the up-to-dateness and accuracy of trajectory information improves, but the data processing complexity and computational requirements increase
Solution Approach 1:
The patent extracts the complex data processing function from individual vehicle systems and relocates it to a centralized server. The server collects raw trajectory data from multiple vehicles, processes this data to determine desired trajectories, and returns simplified guidance information to vehicles. This extraction resolves the contradiction by enabling real-time, accurate trajectory information without burdening individual vehicle systems with complex processing.
Solution Approach 2:
The server performs preliminary processing of trajectory data by collecting data from multiple road users, determining desired trajectories in advance, and storing this information before it is needed by individual vehicles. This preliminary action enables rapid provision of accurate trajectory information while reducing real-time computational requirements in vehicle systems.
3Adaptability or versatility
If the desired trajectory is continuously updated based on new trajectory data from road users, then the accuracy and adaptability to road changes improves, but the frequency of data processing and system resource consumption increases
Solution Approach 1:
The system implements periodic updates of desired trajectory information rather than continuous real-time updates. The server collects trajectory data from road users at regular intervals, processes this data to update desired trajectories, and provides updated information to vehicles periodically. This periodic action enables the system to adapt to road changes while controlling resource consumption by avoiding constant data processing.
Data Source
AI summary
A method for determining a desired trajectory for a first road user for a route section. A process involves at least one trajectory that the at least one second road user has used to cover the route section being ascertained by one or more sensors. Then, a further process involves a piece of information about the at least one trajectory covered being transmitted to a computation unit. A process involves a desired trajectory for the first road user for covering the route section being ascertained, based on the at least one piece of information about the trajectory covered by the at least one second road user with the computation unit.