Multi-camera Occupancy Detection for High-Occupancy Vehicle Lanes

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Solution Overview

Problem

Current methods for detecting the number of in-vehicle persons in high occupancy vehicle lanes are inefficient and inaccurate, particularly when vehicles have tinted windows, leading to difficulties in enforcing regulations and potentially causing traffic congestion or accidents.

Innovation Solution

A service system utilizing two cameras positioned diagonally and orthogonally to the vehicle's travel direction to continuously photograph and analyze images, allowing for accurate detection of in-vehicle persons by recognizing seat regions and counting individuals without double-counting, thereby determining if a vehicle violates occupancy laws.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a single camera is used to photograph vehicles in exclusive bus lanes, then the system structure is simple, but the accuracy of detecting in-vehicle persons is insufficient due to tinted windows and viewing angle limitations

Engineering Contradiction:
Improvedetection accuracy of in-vehicle personsVSAvoidcamera system structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple cameras (front camera, rear camera, and side cameras) into an integrated surveillance system. The control device merges image data from all cameras to comprehensively analyze vehicle occupancy, overcoming the limitations of single-camera systems while maintaining systematic management of the complex multi-camera setup.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from single-viewpoint camera imaging to multi-dimensional imaging by positioning cameras at different locations (front, rear, sides) and angles. This dimensional expansion allows the system to capture images of vehicle interiors from multiple perspectives, enabling accurate detection of in-vehicle persons even through tinted windows.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Measurement precision

If policemen visually check vehicles in person to regulate exclusive bus lane usage, then direct observation is possible, but traffic congestion and safety risks increase due to stopping moving vehicles

Engineering Contradiction:
Improveaccuracy of checking in-vehicle personsVSAvoidtraffic congestion and accident risk
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical approach of policemen physically stopping and checking vehicles with an automated optical detection system. Cameras continuously capture images of vehicles in motion, and the control device automatically analyzes these images to determine compliance with occupancy requirements, eliminating the need to stop vehicles and thus avoiding traffic congestion and safety hazards.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables vehicles to be automatically regulated without human intervention during the inspection process. The cameras and control device perform the entire detection and determination process autonomously, allowing vehicles to continue moving freely while compliance is verified through automated image analysis.

Inventive Principle:
Principle #25Self-service

3Productivity

If existing systems only check vehicle types through license plate recognition, then implementation is simple, but the ability to detect whether vehicles meet occupancy requirements is lost

Engineering Contradiction:
Improveregulation efficiencyVSAvoiddetection capability of in-vehicle persons
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent creates a multi-functional system that performs both vehicle identification (through license plate recognition) and occupancy detection (through image analysis of vehicle interiors). The control device integrates multiple functions: identifying vehicle types, counting in-vehicle persons, determining compliance with occupancy requirements, and generating violation records, thereby significantly improving regulation efficiency while maintaining accurate detection capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11893805B1Service system and method for detecting number of in-vehicle persons of vehicle in high occupancy vehicle lane
Publication Date: 2024.02.06 G&T SOLUTIONS
  • US11893805B1 patent drawing
  • US11893805B1 patent drawing
  • US11893805B1 patent drawing

AI summary

The present disclosure relates to a service system and method for detecting the number of in-vehicle persons of a vehicle in a high occupancy vehicle lane. In more detail, the present disclosure relates to a service system and method for detecting the number of in-vehicle persons of a vehicle in a high occupancy vehicle lane, the service system and method detecting a vehicle violating the law about use of a high occupancy vehicle lane by calculating the number of in-vehicle persons of a vehicle using a high occupancy vehicle lane by tracking the number of in-vehicle persons on the basis of images of the vehicle taken by a camera disposed diagonally to the traveling direction of the vehicle and a camera disposed orthogonally to the traveling direction of the vehicle.