Vehicular Drive Assist System Using Communication Center Data Analysis
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Solution Overview
Problem
Existing navigation systems cannot accurately assess the ease of travel on roads based solely on physical road configurations, leading to potential misjudgment of road conditions and adverse effects on vehicle running characteristics and driver safety.
Innovation Solution
A vehicular drive assist system that analyzes vehicular states, such as brake pedal operation frequency and average vehicle speed, to evaluate the ease of travel in predetermined areas like roads or intersections, and communicates these evaluations to vehicles for improved route planning and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If road ease of travel is judged uniformly on the basis of physical road configuration parameters (road lengths, number of lanes, etc.), then the judgment process is simple and fast, but the accuracy of ease of travel assessment deteriorates because actual road conditions (parking, incidents, bumps, ice) cannot be captured
Solution Approach 1:
The patent introduces communication centers as intermediary nodes that collect, aggregate, and process vehicular state data from multiple vehicles. These centers serve as mediators between individual vehicles and the route planning system, enabling accurate ease of travel assessment without requiring each vehicle to independently collect and process complex data. The communication centers aggregate data about brake operations, steering operations, and vehicle speeds to generate comprehensive road condition evaluations.
Solution Approach 2:
The system implements feedback loops where vehicular state data is continuously collected from vehicles traveling on roads, processed by communication centers, and used to update ease of travel assessments. These assessments are then fed back to vehicles for route planning decisions. The feedback mechanism enables dynamic adjustment of road condition evaluations based on actual driving experiences, improving assessment accuracy over time while distributing the computational burden across the network.
2Reliability
If actual road conditions are assessed through real vehicle travel data collection, then the ease of travel assessment accuracy improves, but the system complexity and data processing requirements worsen
Solution Approach 1:
The patent segments the data collection and processing functions across multiple independent communication centers, each responsible for specific geographic areas or road sections. This segmentation allows parallel processing of vehicular state data from multiple vehicles, reducing the computational burden on any single system. Each communication center independently evaluates ease of travel for its designated area, then these local evaluations are integrated into overall route planning, maintaining high reliability while managing system complexity through distributed architecture.
3Productivity
If physical road configuration parameters are used for route search, then the route planning process is fast and simple, but the resulting routes may not actually be easy to travel through due to unaccounted real-world conditions
Solution Approach 1:
The system performs preliminary evaluation of road ease of travel by collecting and processing vehicular state data before vehicles actually need to plan routes. Communication centers continuously aggregate data about brake operations, steering operations, and vehicle speeds to pre-compute ease of travel assessments for various road sections. When vehicles need route planning, these pre-computed assessments are already available, enabling fast route selection that accounts for actual road conditions without requiring time-consuming real-time analysis.
Data Source
AI summary
A vehicular drive assist system that analyzes information collected from a vehicle and sends a result of analysis to the vehicle and/or another vehicle, including a vehicle-mounted apparatus (101) mounted in the vehicle, and a communication center (102) that communicates with the vehicle-mounted apparatus (101). The vehicle-mounted apparatus (101) detects a present position of the host vehicle, detects a vehicular state of the host vehicle, and sends the present position and the vehicular state at the position detected to the communication center (102). The communication center (102) performs statistic processing of the vehicular state received, separately for each predetermined area on a road, by using the present position, calculates a tendency of the vehicular state separately for each predetermined area, evaluates ease of travel on the road in the predetermined area from the tendency calculated, and sends a result of evaluation to the vehicle and/or another vehicle.