Surveillance Camera Blind Spot Detection via Event Signaling
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Solution Overview
Problem
Conventional surveillance camera systems often have blind spots, making it difficult to detect objects in all monitored regions quickly, which can lead to delayed detection of potential accidents.
Innovation Solution
A surveillance camera system where multiple cameras cooperate to detect objects, generating a first event signal when an object is detected and a second event signal when the object is not detected by all cameras within a preconfigured time, transmitting relevant information to a manager terminal to prevent accidents in blind spots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple surveillance cameras are installed to cover all regions, then the surveillance coverage area is improved, but the device complexity and cost increase
Solution Approach 1:
The system divides the surveillance area into multiple regions, each monitored by a dedicated camera. Each camera is assigned to monitor specific surveillance regions, and the system segments the detection task by having each camera independently monitor its assigned regions. This segmentation allows comprehensive coverage without requiring a single complex camera system.
Solution Approach 2:
The system merges the detection results from multiple cameras through a server that collects and processes information from all cameras. By combining the surveillance coverage of multiple cameras and merging their detection data, the system achieves comprehensive area coverage while maintaining manageable individual camera complexity.
2Reliability
If multiple surveillance cameras are installed to eliminate blind spots, then the reliability of detection is improved, but the device complexity increases
Solution Approach 1:
The system segments the detection function across multiple cameras, with each camera responsible for detecting objects in its specific surveillance regions. This segmentation of detection tasks across multiple simple cameras achieves higher overall reliability than a single complex camera, as each camera can be optimized for its specific monitoring zone.
Solution Approach 2:
The system implements feedback mechanisms where each camera reports detection results to a central server, which then determines whether an object has been detected across all surveillance regions. This feedback loop ensures reliable detection by continuously monitoring and cross-checking results from multiple cameras, confirming object presence or absence across the entire area.
3Productivity
If the system monitors all surveillance regions continuously, then the detection speed for blind spots is improved, but the loss of time for data processing increases
Solution Approach 1:
The system performs preliminary actions by having each camera continuously monitor its assigned surveillance regions and prepare detection results for immediate reporting. Cameras are pre-configured to detect and report objects in their zones, so when an object enters any region, the detection can occur immediately without waiting for centralized analysis of all regions, thus improving detection speed while minimizing processing time loss.
Data Source
AI summary
A surveillance camera system according to an embodiment of the present disclosure comprises: multiple surveillance cameras for capturing images of different surveillance regions to surveil a protection object; an event management server which is connected to the surveillance cameras through a communication network and receives a first event signal or a second event signal from at least one of the surveillance cameras; and a manager terminal for receiving event information corresponding to the second event signal from the event management server when the second event signal is generated, wherein the first event signal corresponds to a signal generated when the protection object is detected by at least one of the multiple surveillance cameras, and the second event signal corresponds to a signal generated when the protection object is detected by none of the multiple surveillance cameras during a preconfigured reference time.