A solar-powered surveillance camera and a power management method thereof
By constructing a solar power curve to predict the energy gap and adjusting the load mode, the problem of unstable power supply for solar-powered cameras during light fluctuations was solved, achieving battery protection and continuous monitoring.
CN122120604APending Publication Date: 2026-05-29SHENZHEN HISTAR TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN HISTAR TECH CO LTD
- Filing Date
- 2026-03-03
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
Existing solar-powered surveillance cameras cannot guarantee continuous power supply when lighting conditions fluctuate, leading to rapid battery discharge, damage to battery life, and interruption of monitoring.
Method used
By collecting the output voltage and current of the solar panel to construct a power curve, the cumulative energy gap is predicted, and a load transfer priority sequence is created when the energy gap is less than a threshold. The operating mode and power consumption of the load are adjusted, including PWM dimming and operating mode switching.
Benefits of technology
It effectively avoids deep battery discharge, extends the operating time of surveillance cameras in complex lighting environments, and improves power supply stability and reliability.
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Smart Images
Figure CN122120604A_ABST
Abstract
The application relates to the field of monitoring camera technology and discloses a solar power-supplied monitoring camera and a power management method thereof, wherein the method comprises the following steps: collecting the output voltage and output current of a solar panel and constructing a solar power curve, predicting an accumulated energy gap based on the solar power curve, creating a load transfer priority sequence when the accumulated energy gap is smaller than a preset energy gap threshold value and the solar power curve slope is smaller than a preset slope threshold value, and performing PWM duty cycle decrement dimming on a light supplement lamp according to the load transfer priority sequence and switching the working mode of a pan-tilt motor from a continuous cruise mode to a triggered rotation mode. The application effectively avoids battery deep discharge damage, prolongs the monitoring continuous operation time in a continuous rainy day scene, and improves the power supply stability and reliability of the solar monitoring camera in a complex illumination environment.
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