Battery-Powered Image Capture with RTOS Threat Screening
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Solution Overview
Problem
Battery-powered image capture devices face inefficiencies in power consumption and delay in activating security features due to the use of only two power modes, leading to wasted power and delayed threat detection when switching between low power and normal operating modes.
Innovation Solution
Implementing a bifurcated power management system that includes a real-time operating system (RTOS) for initial image analysis and a virtual machine (VM) mode for more intensive tasks, allowing quick threat detection and reduced power consumption by booting up a multitasking operating system only after identifying a threat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the device uses only two power modes (low power and normal operating modes), then power consumption is simplified to manage, but power consumption efficiency decreases and response time to security threats increases
Solution Approach 1:
The patent segments the operating system into two distinct modes: RTOS for low-power operation and a multitasking OS for full functionality. This segmentation allows the device to operate in the most efficient mode for each specific task, avoiding the energy waste of running full OS continuously while maintaining the ability to activate complete functionality when security threats are detected.
Solution Approach 2:
The patent implements dynamic power mode switching between RTOS and multitasking OS based on real-time security conditions. The system automatically transitions from low-power RTOS mode to full multitasking mode when motion is detected or threats are identified, and returns to RTOS mode when threats are resolved, optimizing power consumption according to actual operational needs.
2Device complexity
If the device uses only two power modes (low power and normal operating modes), then power mode management is simplified, but response time to security threats increases
Solution Approach 1:
The patent implements preliminary action by continuously monitoring for motion and pre-loading necessary processing capabilities within the RTOS framework. When motion is detected, the system has already prepared the image processing pipeline and threat detection algorithms, enabling immediate transition to threat analysis without the delay of booting up the entire multitasking OS from scratch.
Solution Approach 2:
The patent introduces an intermediary layer (the RTOS with embedded image processing capabilities) that bridges the gap between low-power state and full multitasking mode. This intermediary allows critical security functions to operate efficiently in RTOS while maintaining the ability to activate full processing power when needed, eliminating the need to wait for complete OS boot-up to detect and respond to threats.
3Productivity
If the device boots up multitasking operating system continuously, then full processing capability is available, but power consumption increases
Solution Approach 1:
The patent applies partial action by running only the essential security monitoring functions in RTOS mode without booting the complete multitasking OS. The system performs sufficient image analysis and motion detection in the lightweight RTOS environment, activating the full multitasking OS only when threats are identified and enhanced processing is truly necessary, thus avoiding excessive power consumption while maintaining adequate security surveillance.
Data Source
AI summary
A method includes causing, by a controller of a device, at least one processor of the device distinct from the controller to power on in response to receipt of a signal from a sensor of the device configured to detect motion within a field of view; analyzing, by the at least one processor, one or more images from an image sensor of the device to identify an image of a person; sending, by the at least one processor, a trigger to a base station in response to identification of the image of the person; and booting, by the at least one processor, a multitasking operating system of the device after sending the trigger to the base station.