Automated Traffic Detection Zone Configuration via Video Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The high cost and time-consuming manual configuration of detection zones for traffic sensors at intersections, as well as the unreliability and calibration requirements of existing technologies like inductive loop detectors, video detectors, and microwave detectors, necessitate the development of automated systems for configuring detection zones and associating them with traffic signal phases.
Innovation Solution
A sensor system that acquires data from transducer views to detect non-stationary and stationary targets, identifies common target paths and positions, and configures detection zones based on this data, with a computerized traffic detection system associating these zones with corresponding traffic signal phases, generating digital data for rendering an aerial view of the intersection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inductive loop detectors are used for traffic signal actuation, then detection coverage is achieved, but installation cost and time increase significantly due to lane closures and manual configuration
Solution Approach 1:
The patent replaces mechanical inductive loop detectors embedded in the roadway with electronic/video-based detection systems mounted on overhead structures. This substitution eliminates the need for lane closures and physical wiring, thereby reducing installation time and complexity while maintaining detection reliability through automated image processing and digital configuration.
Solution Approach 2:
The patent uses video cameras to create digital copies of the physical intersection environment. These video feeds are processed to generate virtual detection zones that replicate the functionality of physical loop detectors, allowing for automated configuration and association with traffic signal phases without manual field calibration.
2Reliability
If multiple sensors are installed for each approach to an intersection, then detection coverage is improved, but installation cost increases
Solution Approach 1:
The patent employs a single overhead video camera system that performs multiple detection functions simultaneously. The camera captures images that are processed to identify vehicles in multiple lanes and zones, replacing the need for separate physical sensors at each detection point. This multi-functional approach maintains comprehensive detection coverage while reducing the total number of hardware components required.
Solution Approach 2:
The patent merges multiple detection functions into a single integrated video detection system. Instead of installing separate inductive loop detectors or microwave sensors for each approach and lane, the system combines all detection capabilities into one overhead camera platform with centralized image processing, thereby reducing hardware quantity and installation complexity.
3Manufacturing precision
If manual configuration of detection zones is performed, then precise zone placement is achieved, but configuration time increases
Solution Approach 1:
The patent implements automated configuration where the video detection system itself performs the zone setup process. The system automatically processes video feeds, identifies vehicle positions and movement patterns, and generates detection zone configurations based on observed traffic flows. This self-configuration capability maintains precise zone placement while eliminating time-consuming manual field calibration and wiring.
Solution Approach 2:
The system uses real-time video feedback from the intersection to automatically adjust and configure detection zones. By continuously analyzing vehicle detection data and traffic patterns, the system refines zone boundaries and parameters automatically, achieving precise configuration without manual intervention and reducing setup time significantly.
4Reliability
If inductive loop detectors are used, then detection functionality is provided, but calibration requirements increase maintenance complexity
Solution Approach 1:
The patent replaces mechanical inductive loop detectors that require physical calibration with electronic video-based detection systems. The video system processes digital images through software algorithms that automatically adapt to changing conditions, eliminating the need for manual calibration procedures and reducing maintenance complexity while preserving detection functionality.
Data Source
AI summary
The present invention extends to configuring detection zones in a traffic monitoring system and to association of detection zones with corresponding traffic signal phases. One or more sensors detect targets within a roadway intersection. The sensors integrate acquired sensor data for the targets into track files. The track files are subsequently used to identify common target paths. A histogram is used to identify common target positions for stationary targets. From the common target positions and the common target paths detection zones are configured. Detection zones are associated with traffic signal phases so that specific detections can be created. Lane boundaries within the roadway intersection are inferred from the common target paths. Permanent stationary target locations are identified from the common target positions.