Road Surface Image Transmission Control via Environmental Evaluation
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Solution Overview
Problem
Existing methods for collecting and transmitting road surface condition data using general vehicles often result in the transmission of unsuitable images due to environmental factors such as vehicle occupancy, water puddles, or snow, which hinder effective road surface condition assessment.
Innovation Solution
A data collection apparatus and onboard system that evaluates the goodness degree of the road surface photographing environment using sensor data from vehicles, thereby controlling the transmission of road surface images only when the environment is suitable for assessment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If images are transmitted directly from the vehicle to the data collection apparatus without environmental evaluation, then the data collection process is simple and fast, but a large number of unsuitable images are transmitted, reducing data quality
Solution Approach 1:
The system performs preliminary evaluation of the photographing environment using sensor data before transmitting images. The control part assesses whether the environment is suitable for road surface condition detection (e.g., checking for vehicle occupancy, water puddles, or snow) and only permits transmission if the environment meets the required criteria, thereby preventing unsuitable images from being transmitted while maintaining system simplicity
Solution Approach 2:
The control part acts as an intermediary between the camera and the data collection apparatus. It receives sensor data, evaluates the photographing environment, and controls the transmission decision. This intermediary layer filters out unsuitable images without requiring complex processing at the data collection apparatus, thus improving data quality while keeping the overall system manageable
2Measurement precision
If environmental evaluation is performed before image transmission, then the quality of transmitted images is improved, but the data collection process becomes more complex and time-consuming
Solution Approach 1:
The system replaces complex image processing and manual review mechanisms with automated sensor-based environmental evaluation. By using sensors to detect conditions such as vehicle occupancy, water puddles, or snow, the system automatically determines suitability for transmission without requiring time-consuming image analysis or human intervention, thus improving quality while minimizing time loss
3Productivity
If all images are transmitted regardless of environment suitability, then the data collection process is efficient, but the amount of unnecessary data transmission increases, wasting resources
Solution Approach 1:
The control part extracts and removes unsuitable images from the transmission stream by evaluating environmental conditions beforehand. It identifies and excludes images taken in inappropriate environments (such as when vehicles occupy most of the image or when water puddles/snow are present), allowing only suitable images to be transmitted to the data collection apparatus, thereby eliminating unnecessary data transmission while maintaining collection efficiency
Data Source
AI summary
A data collection apparatus, including: a data reception part that receives sensor data from a vehicle capable of photographing a road surface, the sensor data being acquired by a sensor mounted on the vehicle; and a control part that evaluates a goodness degree of a road surface photographing environment on a basis of the sensor data and control a transmission from the vehicle of a road surface photographed image on a basis of the goodness degree of the road surface photographing environment.