Surveillance Camera Secondary Power Source for Continuous Operation
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Solution Overview
Problem
Conventional battery-operated surveillance cameras require significant downtime for battery replacement and may be tampered with, disrupting monitoring systems without immediate notification or action.
Innovation Solution
Incorporating a secondary power source within the camera that allows continuous operation and notification of power source changes, enabling the camera to switch to low power mode and transmit diagnostic information, while the monitoring system can initiate actions based on pre-set rules for battery replacement or tampering events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a battery-powered surveillance camera is used to enable wireless installation, then ease of installation is improved, but operational availability deteriorates due to battery replacement downtime
Solution Approach 1:
The power source is divided into two separate components: a removable primary battery and an internal secondary battery. This segmentation allows the primary battery to be easily replaced without affecting the camera's continuous operation, as the secondary battery maintains power during the swap. The camera housing is also segmented to allow easy access and replacement of the primary battery while keeping the secondary battery integrated.
Solution Approach 2:
The secondary battery is pre-charged and positioned within the camera housing before the primary battery needs replacement. This preliminary preparation ensures that when the primary battery is removed, the camera immediately switches to secondary power without interruption. The system proactively prepares the backup power source in advance to prevent any operational gap.
2Reliability
If the camera operates continuously without power interruption, then operational availability is improved, but security monitoring deteriorates during battery replacement events
Solution Approach 1:
The camera includes sensors that continuously monitor battery status, power source availability, and operational state. When the primary battery is removed or low on power, the system provides immediate feedback by switching to the secondary battery and notifying the monitoring system. This feedback mechanism ensures continuous security monitoring by detecting and responding to battery events in real-time, preventing any loss of surveillance capability.
Solution Approach 2:
The secondary battery acts as a cushioning backup that is already in place and charged, ready to absorb the power gap that would occur during primary battery replacement. This prior cushioning ensures that the camera maintains operational continuity and security monitoring capability throughout the battery replacement process, preventing any vulnerability window.
3Reliability
If diagnostic information is transmitted during power transition, then system reliability is improved, but energy consumption increases during battery replacement
Solution Approach 1:
The transmission of diagnostic information is performed periodically and selectively rather than continuously. The camera transmits power transition diagnostics at specific key moments (when primary battery is removed, when secondary battery is activated, when primary battery is reinstalled) rather than maintaining constant communication. This periodic transmission approach ensures system reliability through adequate monitoring while minimizing energy consumption by avoiding unnecessary continuous data transmission during power-sensitive periods.
Data Source
AI summary
A monitoring system includes a camera that includes a removable primary power source and a secondary power source. The camera is configured to detect removal of the primary power source. The camera is configured to draw power from the secondary power source and generate a primary power source removal notification indicating that the primary power source has been removed from the camera. The monitoring system includes a monitor control unit that is configured to receive the primary power source removal notification. The monitor control unit is configured to determine whether a primary power source removal request was received within a period of time before receipt of the primary power source removal notification, the primary power source removal request indicating that the primary power source will be removed within the period of time. The monitor control unit is configured to perform a monitoring system action.