Center-Side Probe System for Drive-Type Traffic Estimation
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Solution Overview
Problem
Conventional probe information systems fail to accurately provide the number of vehicles on the road for each drive type and cannot measure waiting time at energy refilling facilities for specific drive types, leading to inefficient route planning and longer travel times.
Innovation Solution
A center-side system in the probe information system receives vehicle position and drive type information from probe vehicles, estimates traffic conditions by classifying the number of vehicles for each drive type, and transmits this information to enable vehicles to estimate waiting times at energy refilling facilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional probe information systems collect and transmit traffic information from probe vehicles, then vehicles can acquire basic traffic conditions and search routes, but the system cannot provide accurate waiting time estimates at energy refilling facilities for different drive types
Solution Approach 1:
The patent segments traffic information by drive type (electric vehicles, hybrid vehicles, conventional vehicles) and collects separate statistics for each category. The center-side system maintains distinct counters for vehicles of different drive types on each road section, enabling differentiated waiting time estimates at energy refilling facilities for each drive type category.
Solution Approach 2:
The system implements feedback by continuously collecting probe information from vehicles, updating drive type-classified traffic conditions in real-time, and transmitting this information back to vehicles. This feedback loop enables dynamic adjustment of waiting time estimates based on current traffic conditions and energy refilling facility status for each drive type.
2Measurement precision
If the center-side system collects detailed drive type information from all probe vehicles, then accurate drive type-classified traffic conditions can be estimated, but the system complexity and data processing requirements increase
Solution Approach 1:
The patent extracts only the essential drive type information from probe vehicles and transmits this specific data element to the center-side system. Rather than processing complete vehicle telemetry data, the system focuses on collecting and analyzing only the drive type classification and position information necessary for traffic condition estimation, thereby reducing processing complexity.
Solution Approach 2:
The system changes the parameter being measured from comprehensive vehicle operational data to simplified drive type classification categories. By transforming detailed vehicle information into discrete drive type parameters (electric, hybrid, conventional), the system reduces data processing complexity while maintaining the ability to provide drive type-specific traffic condition estimates.
Data Source
AI summary
An object of the present invention is to provide a technology capable of estimating a waiting time at an energy refilling facility for each of drive types. A center-side system includes a center-side receiver that receives, from a vehicle-side system, probe vehicle position information and drive type information that is information regarding a drive type of a probe vehicle. Then, the center-side system includes: a traffic condition estimation unit that estimates a traffic condition, which includes a drive type-classified number of vehicles, based on the probe vehicle position information and the drive type information, which are received by the center-side receiver; and a center-side transmitter that transmits, to an outside, the traffic condition estimated by the traffic condition estimation unit.