Surveillance Gateway Dynamic Camera Mode Switching
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Solution Overview
Problem
Existing surveillance systems often fail to prevent non-sensing of events due to inefficient power management and inadequate coordination among network cameras, leading to potential misses in event detection.
Innovation Solution
A surveillance system that includes a communication module for network cameras to share event information and a processor to recognize subject motion, adjust camera settings like panning, tilting, and zooming, and switch between sleep and standby modes to optimize power consumption and event detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network cameras operate continuously in active mode to ensure event detection, then event detection reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic operation mode switching for network cameras, allowing them to transition between active mode (full event sensing capability) and sleep mode (reduced power consumption) based on real-time subject motion detection. Cameras adjust their operational state dynamically rather than maintaining a fixed mode, resolving the contradiction between continuous detection reliability and power consumption.
Solution Approach 2:
The system performs preliminary subject motion detection using event information before activating full camera operation. When motion is detected, the system proactively switches cameras to active mode in advance, ensuring they are ready to capture events. This preliminary action allows cameras to remain in low-power mode during normal conditions while quickly transitioning to high-reliability mode when needed.
2Use of energy by moving object
If network cameras use sleep mode to reduce power consumption, then power efficiency is improved, but event sensing capability deteriorates
Solution Approach 1:
The patent introduces an intermediary subject motion detection mechanism that operates between sleep mode and full active mode. Event information and motion detection data serve as intermediaries that trigger camera activation, allowing the system to maintain power efficiency during normal sleep mode while ensuring event sensing capability is restored when motion is detected. This intermediary layer resolves the contradiction by providing a middle ground between complete inactivity and full operation.
Solution Approach 2:
The system implements feedback loops where event information from sensors and motion detection results continuously monitor the environment and trigger camera mode transitions. When motion is detected or events occur, the feedback mechanism activates cameras from sleep mode, ensuring event sensing capability is maintained without requiring continuous active operation. This feedback-driven approach balances power efficiency with reliable event detection.
3Reliability
If multiple network cameras coordinate to track subject motion, then event detection coverage is improved, but system complexity increases
Solution Approach 1:
The patent segments the surveillance system into independent network cameras that each operate autonomously with their own motion detection and event sensing capabilities. Rather than requiring centralized coordination of all cameras, each camera independently processes event information and adjusts its operation based on local subject motion detection. This segmentation reduces system complexity while maintaining comprehensive event detection coverage through distributed intelligence.
Solution Approach 2:
Each network camera performs self-service by independently detecting subject motion through event information and automatically adjusting its operational mode without requiring complex external coordination. Cameras autonomously determine when to switch from sleep to active mode based on their own motion detection results, simplifying the overall system architecture while ensuring comprehensive event detection coverage across multiple cameras.
Data Source
AI summary
A gateway of a surveillance system, the gateway includes: a communication module configured to communicate with a plurality of network cameras including a first network camera and a second network camera; and a processor configured to recognize a motion of a subject based on event information transmitted by the first network camera and to transmit subject information generated based on the motion of the subject to the second network camera.