Multi-Sensor Object Tracking Across Overlapping Detection Areas
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Solution Overview
Problem
Existing object tracking systems using a single external sensor, such as a millimeter-wave radar or camera, have limited monitoring areas and can create blind spots and erroneous object recognition when overlapping areas are monitored by multiple sensors, leading to interrupted tracking of objects.
Innovation Solution
An object tracking apparatus that integrates information from multiple external sensors, such as front and side millimeter-wave radars and cameras, to determine if detected objects in overlapping areas are the same, thereby correcting identification and preventing misrecognition, and integrating identification information to ensure continuous tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple external sensors are used to monitor overlapping areas, then the monitoring area is widened and object detection coverage is improved, but erroneous object recognition occurs and tracking is interrupted
Solution Approach 1:
The system segments the monitoring area into multiple zones covered by different external sensors, with overlapping regions intentionally created. Each sensor independently monitors its assigned area, and the control device manages the segmentation by identifying when the same object appears in overlapping zones, preventing erroneous recognition while maintaining comprehensive coverage.
Solution Approach 2:
The control device implements a feedback mechanism where detection results from multiple sensors are continuously compared and integrated. When an object is detected in an overlapping area by multiple sensors, the system uses identification information exchange and correlation analysis to confirm object identity, providing feedback that resolves conflicts and maintains accurate tracking across sensor boundaries.
2Area of stationary object
If multiple external sensors monitor overlapping areas, then detection coverage is improved, but tracking of objects is interrupted due to erroneous recognition
Solution Approach 1:
The system performs preliminary actions by pre-establishing communication protocols and identification information exchange mechanisms between sensors before objects enter overlapping areas. The control device prepares tracking data structures and correlation algorithms in advance, enabling seamless object identification and continuous tracking when objects move through overlapping zones without interruption.
Solution Approach 2:
The control device merges detection results from multiple sensors by integrating identification information and tracking data. When objects are detected in overlapping areas, the system combines sensor data streams, correlates identification information, and maintains unified object trajectories, ensuring continuous tracking across the entire monitoring area without time loss or interruption.
3Device complexity
If a single external sensor is used, then device complexity is reduced, but blind spots are created and monitoring area is limited
Solution Approach 1:
Each external sensor in the system is designed with multi-functionality, capable of monitoring both its primary assigned area and contributing to overlapping zones. The control device manages this universality by dynamically allocating sensor functions and coordinating detection efforts, allowing the system to achieve comprehensive area coverage while maintaining manageable complexity through standardized sensor interfaces and protocols.
Data Source
AI summary
In an object tracking apparatus, a first acquiring unit acquires first information including first position information indicating a position of a first object detected by a first external sensor that monitors a first area and first identification information for identifying the first object. A second acquiring unit acquires second information including second position information indicating a position of a second object detected by a second external sensor that monitors a second area and second identification information for identifying the second object. An integrating unit integrates the first information and the second information by recording the second identification information of the second information in the first information and deleting the second information, in response to determining that the first object and the second object that are simultaneously detected in an overlapping area in which the first area and the second area overlap each other are the same object.