Analytics-Based Power Management for Wireless Cameras

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Solution Overview

Problem

Battery-powered wireless cameras have limited battery life due to continuous recording requirements, leading to inefficient energy usage and reduced operational duration, while energy harvesting cameras face deployment challenges with non-integrated solar panels.

Innovation Solution

Implementing analytics-based power management systems that analyze captured scenes using video analytics models to determine whether to continue recording, enter a low power state, or perform power-saving functions, allowing cameras to dynamically manage energy usage based on their energy budget and sharing information across the network for optimized power conservation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If continuous recording is implemented to ensure no valuable footage is missed, then recording reliability is improved, but energy consumption increases and battery life decreases

Engineering Contradiction:
Improverecording reliabilityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary actions by capturing preview frames and analyzing scene contents before committing to full recording. The analytics engine pre-evaluates whether recorded content is worth saving by detecting motion, objects, or events of interest, allowing the camera to wake from sleep mode only when valuable content is detected, thus avoiding wasted energy on unimportant footage.

Inventive Principle:
Principle #10Preliminary action

2Use of energy by moving object

If motion-based triggers are used to reduce battery drain, then energy consumption is reduced, but recording quality decreases due to false triggers and non-important video clips

Engineering Contradiction:
Improveenergy consumptionVSAvoidrecording quality
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The system implements feedback by continuously analyzing captured content through an analytics engine that evaluates motion patterns, object detection, and scene understanding. This feedback loop determines whether to maintain recording, enter sleep mode, or adjust recording parameters, ensuring that recording decisions are based on intelligent analysis rather than simple motion thresholds, thereby reducing false triggers while maintaining recording quality.

Inventive Principle:
Principle #23Feedback

3Ease of operation

If live viewing is enabled to allow users to monitor the surrounding area, then user accessibility is improved, but energy consumption increases and battery life decreases

Engineering Contradiction:
Improveuser accessibilityVSAvoidenergy consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The system applies partial action by enabling live viewing only when necessary rather than continuously. The analytics engine monitors scene activity and triggers live viewing mode only when motion or events of interest are detected, allowing users to access live feed on-demand rather than maintaining constant power consumption, thus balancing user accessibility with energy conservation.

Inventive Principle:
Principle #16Partial or excessive action

4Duration of action of moving object

If energy harvesting panels are added to battery-powered cameras to extend operational duration, then battery life is improved, but device complexity increases and deployment difficulty increases

Engineering Contradiction:
Improveoperational durationVSAvoiddevice complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The patent extracts the energy harvesting function from the camera device itself, implementing a separate solar charging system that independently powers the camera. This modular approach allows the camera to be powered externally through solar panels without integrating complex energy harvesting components into the camera housing, thereby extending operational duration while minimizing device complexity and maintaining ease of deployment.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS10708496B2Analytics based power management for cameras
Publication Date: 2020.07.07 CISCO TECHNOLOGY INC
  • US10708496B2 patent drawing
  • US10708496B2 patent drawing
  • US10708496B2 patent drawing

AI summary

Systems and methods are disclosed for managing power use of a camera and/or camera system. In response to a wakeup trigger, contents of a scene are captured by the camera. Based on a received energy budget for the camera, a scene analysis is performed on the scene, where the contents of the scene are analyzed according to one or more analytics models. Based on the output of the one or more analytics models and the received energy budget for the camera, it is determined whether the camera should continue capturing the contents of the scene or enter a power state lower than a previous power state (e.g., go to sleep).