In-Vehicle Vision Detection of Passenger Pole Holding
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Solution Overview
Problem
Existing in-vehicle monitoring systems require sensors to be installed at multiple locations to determine if passengers are holding onto poles, which is impractical and inefficient.
Innovation Solution
An information processing apparatus that analyzes in-vehicle camera footage to detect passenger skeletons and pole positions, determining if passengers are holding onto poles without the need for additional sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are installed in all handrails or straps to detect passenger holding state, then measurement precision of passenger safety is improved, but device complexity and installation cost increase significantly
Solution Approach 1:
The patent replaces the mechanical sensor-based detection system with a vision-based system using cameras and image processing. Instead of installing contact sensors in handrails and straps, the system uses cameras to capture images and analyzes passenger holding states through image recognition algorithms, substituting mechanical sensing with optical sensing and computational analysis.
Solution Approach 2:
The patent creates a virtual model or representation of the passenger and pole interaction through image processing. By analyzing the spatial relationship between the passenger's hand position in images and the pole position, the system creates a digital representation of the holding state without physical contact sensors, effectively copying the sensing function through visual information.
2Reliability
If multiple sensors are installed throughout the vehicle to monitor passenger safety, then reliability of safety monitoring is improved, but ease of manufacture and installation deteriorates
Solution Approach 1:
The patent makes the camera system multi-functional by using it for both passenger holding state detection and general passenger monitoring. The same camera infrastructure serves multiple safety functions, eliminating the need for separate sensor installations for different monitoring purposes, thereby improving ease of manufacture while maintaining reliability.
3Measurement precision
If contact sensors are installed in handrails and straps to detect passenger holding, then measurement precision is improved, but loss of substance and maintenance requirements increase
Solution Approach 1:
The patent implements a non-contact detection system that does not require physical interaction between sensors and passengers. The camera-based system continuously monitors without wear or consumption of sensing components, eliminating the maintenance and replacement issues associated with contact sensors that undergo mechanical stress and degradation from frequent passenger contact.
Data Source
AI summary
A skeleton information acquisition means analyzes an in-vehicle video acquired from a camera that captures an image of a vehicle interior of a moving object, and acquires skeleton information of each of one or more passengers boarding on the moving object. A holding determination means determines whether the passenger is holding a pole, based on skeleton information of the passenger and a position of the pole in the moving object. An alert output means outputs an alert when it is determined that the passenger is not holding the pole.